Merge pull request #282 from PikalaxALT/field_effect_helpers

port field_effect_helpers from emerald

19 files changed, 1543 insertions, 4467 deletions

diff --git a/asm/event_object_movement.s b/asm/event_object_movement.s
index cf5b8c54d..e9ddd9ebc 100644
--- a/asm/event_object_movement.s
+++ b/asm/event_object_movement.s
@@ -1084,7 +1084,7 @@ _0805E5CA:
 	ldrh r0, [r6, 0x2]
 	lsls r1, 28
 	lsrs r1, 28
-	bl npc_load_two_palettes__no_record
+	bl LoadPlayerObjectReflectionPalette
 	b _0805E606
 	.align 2, 0
 _0805E5F4: .4byte gObjectEvents
@@ -1094,7 +1094,7 @@ _0805E5F8:
 	ldrh r0, [r6, 0x2]
 	lsls r1, 28
 	lsrs r1, 28
-	bl npc_load_two_palettes__and_record
+	bl LoadSpecialObjectReflectionPalette
 _0805E606:
 	ldrb r0, [r5, 0x6]
 	cmp r0, 0x4C
@@ -1728,7 +1728,7 @@ sprite_new: @ 805E9F8
 	ldrh r0, [r4, 0x2]
 	lsls r1, 28
 	lsrs r1, 28
-	bl npc_load_two_palettes__and_record
+	bl LoadSpecialObjectReflectionPalette
 _0805EAE4:
 	ldr r1, [sp, 0x1C]
 	cmp r1, 0
@@ -1852,7 +1852,7 @@ sub_805EB44: @ 805EB44
 	ldrh r0, [r7, 0x2]
 	lsls r1, 28
 	lsrs r1, 28
-	bl npc_load_two_palettes__and_record
+	bl LoadSpecialObjectReflectionPalette
 _0805EBE6:
 	ldr r1, [sp, 0x18]
 	cmp r1, 0
@@ -2239,7 +2239,7 @@ _0805EE70:
 	ldrh r0, [r5, 0x2]
 	lsls r1, 28
 	lsrs r1, 28
-	bl npc_load_two_palettes__no_record
+	bl LoadPlayerObjectReflectionPalette
 _0805EECA:
 	ldrb r0, [r5, 0xC]
 	lsls r1, r0, 28
@@ -2248,7 +2248,7 @@ _0805EECA:
 	bls _0805EEDC
 	ldrh r0, [r5, 0x2]
 	lsrs r1, 28
-	bl npc_load_two_palettes__and_record
+	bl LoadSpecialObjectReflectionPalette
 _0805EEDC:
 	mov r0, sp
 	strh r4, [r0, 0x2]
@@ -2315,7 +2315,7 @@ _0805EEDC:
 	mov r0, r8
 	adds r1, r7, 0
 	bl SetPlayerAvatarObjectEventIdAndObjectId
-	bl sub_80DB0C4
+	bl CreateWarpArrowSprite
 	strb r0, [r6, 0x1B]
 _0805EF6A:
 	ldr r1, [sp, 0x20]
@@ -2470,7 +2470,7 @@ ObjectEventSetGraphicsId: @ 805F060
 	ldrh r0, [r5, 0x2]
 	lsls r1, 28
 	lsrs r1, 28
-	bl pal_patch_for_npc
+	bl PatchObjectPalette
 _0805F09E:
 	ldrb r1, [r5, 0xC]
 	mov r0, r8
@@ -2480,7 +2480,7 @@ _0805F09E:
 	ldrh r0, [r5, 0x2]
 	lsls r1, 28
 	lsrs r1, 28
-	bl npc_load_two_palettes__and_record
+	bl LoadSpecialObjectReflectionPalette
 _0805F0B2:
 	ldr r0, [r4, 0xC]
 	ldrh r0, [r0, 0x4]
@@ -2583,7 +2583,7 @@ _0805F152:
 	adds r2, 0x20
 	adds r3, r4, 0
 	adds r3, 0x22
-	bl sub_8063B1C
+	bl SetSpritePosToMapCoords
 	ldrh r0, [r5, 0x8]
 	lsls r0, 16
 	asrs r0, 17
@@ -3107,8 +3107,8 @@ _0805F530:
 	bx r1
 	thumb_func_end sub_805F510
 
-	thumb_func_start pal_patch_for_npc
-pal_patch_for_npc: @ 805F538
+	thumb_func_start PatchObjectPalette
+PatchObjectPalette: @ 805F538
 	push {r4,lr}
 	adds r4, r1, 0
 	lsls r0, 16
@@ -3135,7 +3135,7 @@ pal_patch_for_npc: @ 805F538
 	bx r0
 	.align 2, 0
 _0805F570: .4byte gObjectEventSpritePalettes
-	thumb_func_end pal_patch_for_npc
+	thumb_func_end PatchObjectPalette
 
 	thumb_func_start pal_patch_for_npc_range
 pal_patch_for_npc_range: @ 805F574
@@ -3150,7 +3150,7 @@ pal_patch_for_npc_range: @ 805F574
 _0805F584:
 	ldrh r0, [r5]
 	adds r1, r4, 0
-	bl pal_patch_for_npc
+	bl PatchObjectPalette
 	adds r5, 0x2
 	adds r0, r4, 0x1
 	lsls r0, 24
@@ -3205,8 +3205,8 @@ _0805F5E2:
 	bx r1
 	thumb_func_end FindObjectEventPaletteIndexByTag
 
-	thumb_func_start npc_load_two_palettes__no_record
-npc_load_two_palettes__no_record: @ 805F5E8
+	thumb_func_start LoadPlayerObjectReflectionPalette
+LoadPlayerObjectReflectionPalette: @ 805F5E8
 	push {r4-r6,lr}
 	lsls r0, 16
 	lsrs r4, r0, 16
@@ -3214,14 +3214,14 @@ npc_load_two_palettes__no_record: @ 805F5E8
 	lsrs r5, r1, 24
 	adds r0, r4, 0
 	adds r1, r5, 0
-	bl pal_patch_for_npc
+	bl PatchObjectPalette
 	movs r3, 0
 	ldr r1, _0805F630 @ =gUnknown_83A5208
 	ldrh r0, [r1]
 	ldr r2, _0805F634 @ =0x000011ff
 	cmp r0, r2
 	beq _0805F650
-	ldr r0, _0805F638 @ =gUnknown_835B934
+	ldr r0, _0805F638 @ =gReflectionEffectPaletteMap
 	adds r5, r0
 	adds r6, r2, 0
 _0805F60C:
@@ -3239,12 +3239,12 @@ _0805F60C:
 	adds r0, r1
 	ldrh r0, [r0]
 	ldrb r1, [r5]
-	bl pal_patch_for_npc
+	bl PatchObjectPalette
 	b _0805F650
 	.align 2, 0
 _0805F630: .4byte gUnknown_83A5208
 _0805F634: .4byte 0x000011ff
-_0805F638: .4byte gUnknown_835B934
+_0805F638: .4byte gReflectionEffectPaletteMap
 _0805F63C: .4byte gUnknown_2037098
 _0805F640:
 	adds r0, r3, 0x1
@@ -3259,10 +3259,10 @@ _0805F650:
 	pop {r4-r6}
 	pop {r0}
 	bx r0
-	thumb_func_end npc_load_two_palettes__no_record
+	thumb_func_end LoadPlayerObjectReflectionPalette
 
-	thumb_func_start npc_load_two_palettes__and_record
-npc_load_two_palettes__and_record: @ 805F658
+	thumb_func_start LoadSpecialObjectReflectionPalette
+LoadSpecialObjectReflectionPalette: @ 805F658
 	push {r4-r6,lr}
 	lsls r0, 16
 	lsrs r4, r0, 16
@@ -3272,14 +3272,14 @@ npc_load_two_palettes__and_record: @ 805F658
 	strh r4, [r0]
 	adds r0, r4, 0
 	adds r1, r5, 0
-	bl pal_patch_for_npc
+	bl PatchObjectPalette
 	movs r3, 0
 	ldr r1, _0805F6A8 @ =gUnknown_83A5278
 	ldrh r0, [r1]
 	ldr r2, _0805F6AC @ =0x000011ff
 	cmp r0, r2
 	beq _0805F6C8
-	ldr r0, _0805F6B0 @ =gUnknown_835B934
+	ldr r0, _0805F6B0 @ =gReflectionEffectPaletteMap
 	adds r5, r0
 	adds r6, r2, 0
 _0805F680:
@@ -3297,13 +3297,13 @@ _0805F680:
 	adds r0, r1
 	ldrh r0, [r0]
 	ldrb r1, [r5]
-	bl pal_patch_for_npc
+	bl PatchObjectPalette
 	b _0805F6C8
 	.align 2, 0
 _0805F6A4: .4byte gUnknown_203709A
 _0805F6A8: .4byte gUnknown_83A5278
 _0805F6AC: .4byte 0x000011ff
-_0805F6B0: .4byte gUnknown_835B934
+_0805F6B0: .4byte gReflectionEffectPaletteMap
 _0805F6B4: .4byte gUnknown_2037098
 _0805F6B8:
 	adds r0, r3, 0x1
@@ -3318,18 +3318,18 @@ _0805F6C8:
 	pop {r4-r6}
 	pop {r0}
 	bx r0
-	thumb_func_end npc_load_two_palettes__and_record
+	thumb_func_end LoadSpecialObjectReflectionPalette
 
 	thumb_func_start sub_805F6D0
 sub_805F6D0: @ 805F6D0
 	lsls r0, 24
 	lsrs r0, 24
-	ldr r1, _0805F6DC @ =gUnknown_835B934
+	ldr r1, _0805F6DC @ =gReflectionEffectPaletteMap
 	adds r0, r1
 	ldrb r0, [r0]
 	bx lr
 	.align 2, 0
-_0805F6DC: .4byte gUnknown_835B934
+_0805F6DC: .4byte gReflectionEffectPaletteMap
 	thumb_func_end sub_805F6D0
 
 	thumb_func_start unref_sub_808EAC4
@@ -3413,7 +3413,7 @@ sub_805F724: @ 805F724
 	adds r2, 0x20
 	adds r3, r7, 0
 	adds r3, 0x22
-	bl sub_8063B1C
+	bl SetSpritePosToMapCoords
 	mov r1, r8
 	ldrh r0, [r1, 0x8]
 	lsls r0, 16
@@ -3979,8 +3979,8 @@ _0805FB5E:
 	bx r1
 	thumb_func_end CopySprite
 
-	thumb_func_start obj_unfreeze
-obj_unfreeze: @ 805FB6C
+	thumb_func_start CreateCopySpriteAt
+CreateCopySpriteAt: @ 805FB6C
 	push {r4-r7,lr}
 	mov r7, r8
 	push {r7}
@@ -4038,7 +4038,7 @@ _0805FBD2:
 	pop {r4-r7}
 	pop {r1}
 	bx r1
-	thumb_func_end obj_unfreeze
+	thumb_func_end CreateCopySpriteAt
 
 	thumb_func_start ObjectEventSetDirection
 ObjectEventSetDirection: @ 805FBDC
@@ -4524,8 +4524,8 @@ _0805FF2A:
 _0805FF30: .4byte gUnknown_83A5330
 	thumb_func_end npc_paltag_set_load
 
-	thumb_func_start npc_paltag_by_palslot
-npc_paltag_by_palslot: @ 805FF34
+	thumb_func_start GetObjectPaletteTag
+GetObjectPaletteTag: @ 805FF34
 	push {r4-r6,lr}
 	lsls r0, 24
 	lsrs r2, r0, 24
@@ -4591,7 +4591,7 @@ _0805FFA2:
 _0805FFA8: .4byte gUnknown_83A5278
 _0805FFAC: .4byte 0x000011ff
 _0805FFB0: .4byte gUnknown_203709A
-	thumb_func_end npc_paltag_by_palslot
+	thumb_func_end GetObjectPaletteTag
 
 	thumb_func_start sub_805FFB4
 sub_805FFB4: @ 805FFB4
@@ -12912,8 +12912,8 @@ _08063B14: .4byte gTotalCameraPixelOffsetX
 _08063B18: .4byte gTotalCameraPixelOffsetY
 	thumb_func_end sub_8063AD4
 
-	thumb_func_start sub_8063B1C
-sub_8063B1C: @ 8063B1C
+	thumb_func_start SetSpritePosToMapCoords
+SetSpritePosToMapCoords: @ 8063B1C
 	push {r4-r7,lr}
 	adds r7, r2, 0
 	mov r12, r3
@@ -12997,7 +12997,7 @@ _08063BB4: .4byte gUnknown_3005050
 _08063BB8: .4byte gTotalCameraPixelOffsetY
 _08063BBC: .4byte 0xfff00000
 _08063BC0: .4byte gSaveBlock1Ptr
-	thumb_func_end sub_8063B1C
+	thumb_func_end SetSpritePosToMapCoords
 
 	thumb_func_start sub_8063BC4
 sub_8063BC4: @ 8063BC4
@@ -13019,7 +13019,7 @@ sub_8063BC4: @ 8063BC4
 	ldrsh r1, [r2, r3]
 	adds r2, r6, 0
 	mov r3, r8
-	bl sub_8063B1C
+	bl SetSpritePosToMapCoords
 	lsls r4, 16
 	asrs r4, 16
 	ldrh r0, [r6]
@@ -23568,7 +23568,7 @@ GroundEffect_JumpOnTallGrass: @ 80685FC
 	movs r7, 0x12
 	ldrsh r4, [r5, r7]
 	str r4, [sp]
-	bl sub_80DB564
+	bl FindTallGrassFieldEffectSpriteId
 	lsls r0, 24
 	lsrs r0, 24
 	cmp r0, 0x40
diff --git a/asm/field_effect_helpers.s b/asm/field_effect_helpers.s
deleted file mode 100644
index 564cc519f..000000000
--- a/asm/field_effect_helpers.s
+++ /dev/null
@@ -1,4308 +0,0 @@
-	.include "asm/macros.inc"
-	.include "constants/constants.inc"
-
-	.syntax unified
-
-	.text
-
-	thumb_func_start SetUpReflection
-SetUpReflection: @ 80DAD7C
-	push {r4-r7,lr}
-	mov r7, r8
-	push {r7}
-	adds r6, r0, 0
-	adds r4, r1, 0
-	lsls r5, r2, 24
-	lsrs r5, 24
-	movs r0, 0x20
-	ldrsh r1, [r4, r0]
-	movs r0, 0x22
-	ldrsh r2, [r4, r0]
-	adds r0, r4, 0
-	movs r3, 0x98
-	bl obj_unfreeze
-	lsls r0, 24
-	lsrs r0, 24
-	lsls r1, r0, 4
-	adds r1, r0
-	lsls r1, 2
-	ldr r0, _080DAE2C @ =gSprites
-	adds r7, r1, r0
-	ldr r0, _080DAE30 @ =sub_80DAF50
-	str r0, [r7, 0x1C]
-	ldrb r1, [r7, 0x5]
-	movs r0, 0xC
-	orrs r1, r0
-	strb r1, [r7, 0x5]
-	ldr r2, _080DAE34 @ =gUnknown_835B934
-	lsrs r0, r1, 4
-	adds r0, r2
-	ldrb r0, [r0]
-	lsls r0, 4
-	movs r2, 0xF
-	ands r1, r2
-	orrs r1, r0
-	strb r1, [r7, 0x5]
-	movs r1, 0x3F
-	adds r1, r7
-	mov r8, r1
-	ldrb r0, [r1]
-	movs r1, 0x40
-	orrs r0, r1
-	mov r1, r8
-	strb r0, [r1]
-	ldr r0, _080DAE38 @ =gDummySpriteAnimTable
-	str r0, [r7, 0x8]
-	adds r0, r7, 0
-	movs r1, 0
-	bl StartSpriteAnim
-	ldr r0, _080DAE3C @ =gDummySpriteAffineAnimTable
-	str r0, [r7, 0x10]
-	mov r1, r8
-	ldrb r0, [r1]
-	movs r1, 0x8
-	orrs r0, r1
-	mov r1, r8
-	strb r0, [r1]
-	adds r2, r7, 0
-	adds r2, 0x42
-	ldrb r1, [r2]
-	movs r0, 0x3F
-	ands r0, r1
-	strb r0, [r2]
-	ldrh r0, [r4, 0x2E]
-	strh r0, [r7, 0x2E]
-	ldrb r0, [r6, 0x8]
-	strh r0, [r7, 0x30]
-	strh r5, [r7, 0x3C]
-	adds r0, r6, 0
-	adds r1, r7, 0
-	bl npc_pal_op
-	cmp r5, 0
-	bne _080DAE22
-	ldrb r0, [r7, 0x1]
-	movs r1, 0x4
-	negs r1, r1
-	ands r1, r0
-	movs r0, 0x1
-	orrs r1, r0
-	strb r1, [r7, 0x1]
-_080DAE22:
-	pop {r3}
-	mov r8, r3
-	pop {r4-r7}
-	pop {r0}
-	bx r0
-	.align 2, 0
-_080DAE2C: .4byte gSprites
-_080DAE30: .4byte sub_80DAF50
-_080DAE34: .4byte gUnknown_835B934
-_080DAE38: .4byte gDummySpriteAnimTable
-_080DAE3C: .4byte gDummySpriteAffineAnimTable
-	thumb_func_end SetUpReflection
-
-	thumb_func_start sub_80DAE40
-sub_80DAE40: @ 80DAE40
-	push {lr}
-	ldrb r0, [r0, 0x5]
-	bl GetObjectEventGraphicsInfo
-	ldrh r0, [r0, 0xA]
-	subs r0, 0x2
-	lsls r0, 16
-	asrs r0, 16
-	pop {r1}
-	bx r1
-	thumb_func_end sub_80DAE40
-
-	thumb_func_start npc_pal_op
-npc_pal_op: @ 80DAE54
-	push {r4,r5,lr}
-	sub sp, 0x8
-	adds r5, r0, 0
-	adds r4, r1, 0
-	ldr r1, _080DAEAC @ =gUnknown_83FECCC
-	mov r0, sp
-	movs r2, 0x6
-	bl memcpy
-	movs r0, 0
-	strh r0, [r4, 0x32]
-	ldrb r0, [r5, 0x5]
-	bl GetObjectEventGraphicsInfo
-	ldrb r1, [r0, 0xC]
-	movs r0, 0x80
-	ands r0, r1
-	cmp r0, 0
-	bne _080DAEB0
-	ldrb r0, [r5, 0x1F]
-	bl MetatileBehavior_GetBridgeType
-	lsls r0, 24
-	lsrs r0, 24
-	cmp r0, 0
-	bne _080DAE96
-	ldrb r0, [r5, 0x1E]
-	bl MetatileBehavior_GetBridgeType
-	lsls r0, 24
-	lsrs r0, 24
-	cmp r0, 0
-	beq _080DAEB0
-_080DAE96:
-	subs r0, 0x1
-	lsls r0, 1
-	add r0, sp
-	ldrh r0, [r0]
-	strh r0, [r4, 0x32]
-	ldrb r1, [r4, 0x5]
-	lsrs r1, 4
-	adds r0, r5, 0
-	bl npc_pal_op_A
-	b _080DAEBA
-	.align 2, 0
-_080DAEAC: .4byte gUnknown_83FECCC
-_080DAEB0:
-	ldrb r1, [r4, 0x5]
-	lsrs r1, 4
-	adds r0, r5, 0
-	bl npc_pal_op_B
-_080DAEBA:
-	add sp, 0x8
-	pop {r4,r5}
-	pop {r0}
-	bx r0
-	thumb_func_end npc_pal_op
-
-	thumb_func_start npc_pal_op_B
-npc_pal_op_B: @ 80DAEC4
-	push {r4,lr}
-	lsls r1, 24
-	lsrs r4, r1, 24
-	ldrb r0, [r0, 0x5]
-	bl GetObjectEventGraphicsInfo
-	adds r2, r0, 0
-	ldrh r1, [r2, 0x4]
-	ldr r0, _080DAEF0 @ =0x000011ff
-	cmp r1, r0
-	beq _080DAF18
-	ldrb r0, [r2, 0xC]
-	movs r1, 0xF
-	ands r1, r0
-	cmp r1, 0
-	bne _080DAEF4
-	ldrh r0, [r2, 0x2]
-	adds r1, r4, 0
-	bl npc_load_two_palettes__no_record
-	b _080DAF12
-	.align 2, 0
-_080DAEF0: .4byte 0x000011ff
-_080DAEF4:
-	cmp r1, 0xA
-	bne _080DAF02
-	ldrh r0, [r2, 0x2]
-	adds r1, r4, 0
-	bl npc_load_two_palettes__and_record
-	b _080DAF12
-_080DAF02:
-	adds r0, r4, 0
-	bl npc_paltag_by_palslot
-	lsls r0, 16
-	lsrs r0, 16
-	adds r1, r4, 0
-	bl pal_patch_for_npc
-_080DAF12:
-	adds r0, r4, 0
-	bl sub_807AA8C
-_080DAF18:
-	pop {r4}
-	pop {r0}
-	bx r0
-	thumb_func_end npc_pal_op_B
-
-	thumb_func_start npc_pal_op_A
-npc_pal_op_A: @ 80DAF20
-	push {r4,lr}
-	lsls r1, 24
-	lsrs r4, r1, 24
-	ldrb r0, [r0, 0x5]
-	bl GetObjectEventGraphicsInfo
-	adds r2, r0, 0
-	ldrh r1, [r2, 0x4]
-	ldr r0, _080DAF4C @ =0x000011ff
-	cmp r1, r0
-	beq _080DAF44
-	adds r0, r1, 0
-	adds r1, r4, 0
-	bl pal_patch_for_npc
-	adds r0, r4, 0
-	bl sub_807AA8C
-_080DAF44:
-	pop {r4}
-	pop {r0}
-	bx r0
-	.align 2, 0
-_080DAF4C: .4byte 0x000011ff
-	thumb_func_end npc_pal_op_A
-
-	thumb_func_start sub_80DAF50
-sub_80DAF50: @ 80DAF50
-	push {r4-r7,lr}
-	mov r7, r9
-	mov r6, r8
-	push {r6,r7}
-	adds r4, r0, 0
-	movs r0, 0x2E
-	ldrsh r1, [r4, r0]
-	lsls r0, r1, 3
-	adds r0, r1
-	lsls r0, 2
-	ldr r1, _080DAF98 @ =gObjectEvents
-	adds r7, r0, r1
-	ldrb r1, [r7, 0x4]
-	lsls r0, r1, 4
-	adds r0, r1
-	lsls r0, 2
-	ldr r1, _080DAF9C @ =gSprites
-	adds r5, r0, r1
-	ldr r0, [r7]
-	ldr r1, _080DAFA0 @ =0x00020001
-	ands r0, r1
-	cmp r0, r1
-	bne _080DAF88
-	ldrb r1, [r7, 0x8]
-	movs r2, 0x30
-	ldrsh r0, [r4, r2]
-	cmp r1, r0
-	beq _080DAFA4
-_080DAF88:
-	adds r2, r4, 0
-	adds r2, 0x3E
-	ldrb r1, [r2]
-	movs r0, 0x2
-	negs r0, r0
-	ands r0, r1
-	strb r0, [r2]
-	b _080DB0AE
-	.align 2, 0
-_080DAF98: .4byte gObjectEvents
-_080DAF9C: .4byte gSprites
-_080DAFA0: .4byte 0x00020001
-_080DAFA4:
-	ldr r1, _080DB0BC @ =gUnknown_835B934
-	ldrb r0, [r5, 0x5]
-	lsrs r0, 4
-	adds r0, r1
-	ldrb r1, [r0]
-	lsls r1, 4
-	ldrb r2, [r4, 0x5]
-	movs r0, 0xF
-	ands r0, r2
-	orrs r0, r1
-	strb r0, [r4, 0x5]
-	ldrb r1, [r5, 0x1]
-	lsrs r1, 6
-	lsls r1, 6
-	ldrb r2, [r4, 0x1]
-	movs r3, 0x3F
-	adds r0, r3, 0
-	ands r0, r2
-	orrs r0, r1
-	strb r0, [r4, 0x1]
-	ldrb r0, [r5, 0x3]
-	lsrs r0, 6
-	lsls r0, 6
-	ldrb r2, [r4, 0x3]
-	adds r1, r3, 0
-	ands r1, r2
-	orrs r1, r0
-	strb r1, [r4, 0x3]
-	ldrb r0, [r5, 0x3]
-	lsls r0, 26
-	lsrs r0, 27
-	movs r2, 0x10
-	orrs r0, r2
-	lsls r0, 1
-	subs r2, 0x4F
-	mov r9, r2
-	ands r1, r2
-	orrs r1, r0
-	strb r1, [r4, 0x3]
-	ldrh r1, [r5, 0x4]
-	lsls r1, 22
-	lsrs r1, 22
-	ldrh r2, [r4, 0x4]
-	ldr r0, _080DB0C0 @ =0xfffffc00
-	ands r0, r2
-	orrs r0, r1
-	strh r0, [r4, 0x4]
-	ldr r0, [r5, 0x18]
-	str r0, [r4, 0x18]
-	adds r0, r5, 0
-	adds r0, 0x42
-	ldrb r0, [r0]
-	lsls r0, 26
-	lsrs r0, 26
-	adds r2, r4, 0
-	adds r2, 0x42
-	ands r3, r0
-	ldrb r1, [r2]
-	movs r0, 0x40
-	negs r0, r0
-	ands r0, r1
-	orrs r0, r3
-	strb r0, [r2]
-	movs r0, 0x3E
-	adds r0, r5
-	mov r8, r0
-	ldrb r0, [r0]
-	adds r6, r4, 0
-	adds r6, 0x3E
-	movs r1, 0x4
-	ands r1, r0
-	ldrb r2, [r6]
-	movs r0, 0x5
-	negs r0, r0
-	ands r0, r2
-	orrs r0, r1
-	strb r0, [r6]
-	ldrh r0, [r5, 0x20]
-	strh r0, [r4, 0x20]
-	adds r0, r7, 0
-	bl sub_80DAE40
-	ldrh r1, [r5, 0x22]
-	adds r0, r1
-	ldrh r1, [r4, 0x32]
-	adds r1, r0
-	strh r1, [r4, 0x22]
-	adds r0, r5, 0
-	adds r0, 0x28
-	ldrb r1, [r0]
-	adds r0, r4, 0
-	adds r0, 0x28
-	strb r1, [r0]
-	adds r0, r5, 0
-	adds r0, 0x29
-	ldrb r0, [r0]
-	adds r1, r4, 0
-	adds r1, 0x29
-	strb r0, [r1]
-	ldrh r0, [r5, 0x24]
-	strh r0, [r4, 0x24]
-	ldrh r0, [r5, 0x26]
-	negs r0, r0
-	strh r0, [r4, 0x26]
-	mov r2, r8
-	ldrb r0, [r2]
-	movs r1, 0x2
-	ands r1, r0
-	ldrb r2, [r6]
-	movs r0, 0x3
-	negs r0, r0
-	ands r0, r2
-	orrs r0, r1
-	strb r0, [r6]
-	movs r1, 0x3C
-	ldrsh r0, [r4, r1]
-	cmp r0, 0
-	bne _080DB0AE
-	ldrb r0, [r4, 0x3]
-	mov r2, r9
-	ands r2, r0
-	strb r2, [r4, 0x3]
-	ldrb r0, [r5, 0x3]
-	lsls r0, 26
-	lsrs r0, 27
-	movs r1, 0x8
-	ands r0, r1
-	cmp r0, 0
-	beq _080DB0AE
-	movs r1, 0x2
-	adds r0, r2, 0
-	orrs r0, r1
-	strb r0, [r4, 0x3]
-_080DB0AE:
-	pop {r3,r4}
-	mov r8, r3
-	mov r9, r4
-	pop {r4-r7}
-	pop {r0}
-	bx r0
-	.align 2, 0
-_080DB0BC: .4byte gUnknown_835B934
-_080DB0C0: .4byte 0xfffffc00
-	thumb_func_end sub_80DAF50
-
-	thumb_func_start sub_80DB0C4
-sub_80DB0C4: @ 80DB0C4
-	push {r4,lr}
-	ldr r0, _080DB10C @ =gFieldEffectObjectTemplatePointers
-	ldr r0, [r0, 0x20]
-	movs r1, 0
-	movs r2, 0
-	movs r3, 0x52
-	bl CreateSpriteAtEnd
-	lsls r0, 24
-	lsrs r0, 24
-	adds r4, r0, 0
-	cmp r0, 0x40
-	beq _080DB102
-	lsls r1, r0, 4
-	adds r1, r0
-	lsls r1, 2
-	ldr r0, _080DB110 @ =gSprites
-	adds r1, r0
-	ldrb r2, [r1, 0x5]
-	movs r0, 0xD
-	negs r0, r0
-	ands r0, r2
-	movs r3, 0x4
-	orrs r0, r3
-	strb r0, [r1, 0x5]
-	adds r1, 0x3E
-	ldrb r0, [r1]
-	movs r2, 0x2
-	orrs r0, r2
-	orrs r0, r3
-	strb r0, [r1]
-_080DB102:
-	adds r0, r4, 0
-	pop {r4}
-	pop {r1}
-	bx r1
-	.align 2, 0
-_080DB10C: .4byte gFieldEffectObjectTemplatePointers
-_080DB110: .4byte gSprites
-	thumb_func_end sub_80DB0C4
-
-	thumb_func_start objid_set_invisible
-objid_set_invisible: @ 80DB114
-	lsls r0, 24
-	lsrs r0, 24
-	ldr r2, _080DB130 @ =gSprites
-	lsls r1, r0, 4
-	adds r1, r0
-	lsls r1, 2
-	adds r1, r2
-	adds r1, 0x3E
-	ldrb r0, [r1]
-	movs r2, 0x4
-	orrs r0, r2
-	strb r0, [r1]
-	bx lr
-	.align 2, 0
-_080DB130: .4byte gSprites
-	thumb_func_end objid_set_invisible
-
-	thumb_func_start sub_80DB134
-sub_80DB134: @ 80DB134
-	push {r4-r7,lr}
-	mov r7, r8
-	push {r7}
-	sub sp, 0x4
-	lsls r0, 24
-	lsrs r5, r0, 24
-	lsls r1, 24
-	lsrs r1, 24
-	mov r8, r1
-	lsls r2, 16
-	lsrs r7, r2, 16
-	lsls r3, 16
-	lsrs r6, r3, 16
-	lsls r0, r5, 4
-	adds r0, r5
-	lsls r0, 2
-	ldr r1, _080DB1D8 @ =gSprites
-	adds r2, r0, r1
-	adds r0, r2, 0
-	adds r0, 0x3E
-	ldrb r1, [r0]
-	movs r0, 0x4
-	ands r0, r1
-	cmp r0, 0
-	bne _080DB17E
-	movs r0, 0x2E
-	ldrsh r1, [r2, r0]
-	lsls r0, r7, 16
-	asrs r0, 16
-	cmp r1, r0
-	bne _080DB17E
-	movs r0, 0x30
-	ldrsh r1, [r2, r0]
-	lsls r0, r6, 16
-	asrs r0, 16
-	cmp r1, r0
-	beq _080DB1CA
-_080DB17E:
-	lsls r0, r7, 16
-	asrs r0, 16
-	lsls r1, r6, 16
-	asrs r1, 16
-	mov r4, sp
-	adds r4, 0x2
-	mov r2, sp
-	adds r3, r4, 0
-	bl sub_8063B1C
-	lsls r0, r5, 4
-	adds r0, r5
-	lsls r0, 2
-	ldr r1, _080DB1D8 @ =gSprites
-	adds r2, r0, r1
-	mov r0, sp
-	ldrh r0, [r0]
-	adds r0, 0x8
-	strh r0, [r2, 0x20]
-	ldrh r0, [r4]
-	adds r0, 0x8
-	strh r0, [r2, 0x22]
-	adds r3, r2, 0
-	adds r3, 0x3E
-	ldrb r1, [r3]
-	movs r0, 0x5
-	negs r0, r0
-	ands r0, r1
-	strb r0, [r3]
-	strh r7, [r2, 0x2E]
-	strh r6, [r2, 0x30]
-	mov r1, r8
-	subs r1, 0x1
-	lsls r1, 24
-	lsrs r1, 24
-	adds r0, r2, 0
-	bl StartSpriteAnim
-_080DB1CA:
-	add sp, 0x4
-	pop {r3}
-	mov r8, r3
-	pop {r4-r7}
-	pop {r0}
-	bx r0
-	.align 2, 0
-_080DB1D8: .4byte gSprites
-	thumb_func_end sub_80DB134
-
-	thumb_func_start oei_shadow
-oei_shadow: @ 80DB1DC
-	push {r4,r5,lr}
-	ldr r5, _080DB268 @ =gFieldEffectArguments
-	ldrb r0, [r5]
-	ldrb r1, [r5, 0x4]
-	ldrb r2, [r5, 0x8]
-	bl GetObjectEventIdByLocalIdAndMap
-	lsls r0, 24
-	lsrs r0, 24
-	ldr r2, _080DB26C @ =gObjectEvents
-	lsls r1, r0, 3
-	adds r1, r0
-	lsls r1, 2
-	adds r1, r2
-	ldrb r0, [r1, 0x5]
-	bl GetObjectEventGraphicsInfo
-	adds r4, r0, 0
-	ldr r2, _080DB270 @ =gFieldEffectObjectTemplatePointers
-	ldr r1, _080DB274 @ =gUnknown_83FECD2
-	ldrb r0, [r4, 0xC]
-	lsls r0, 26
-	lsrs r0, 30
-	adds r0, r1
-	ldrb r0, [r0]
-	lsls r0, 2
-	adds r0, r2
-	ldr r0, [r0]
-	movs r1, 0
-	movs r2, 0
-	movs r3, 0x94
-	bl CreateSpriteAtEnd
-	lsls r0, 24
-	lsrs r1, r0, 24
-	cmp r1, 0x40
-	beq _080DB260
-	ldr r0, _080DB278 @ =gSprites
-	lsls r2, r1, 4
-	adds r2, r1
-	lsls r2, 2
-	adds r2, r0
-	adds r3, r2, 0
-	adds r3, 0x3E
-	ldrb r0, [r3]
-	movs r1, 0x2
-	orrs r0, r1
-	strb r0, [r3]
-	ldr r0, [r5]
-	strh r0, [r2, 0x2E]
-	ldr r0, [r5, 0x4]
-	strh r0, [r2, 0x30]
-	ldr r0, [r5, 0x8]
-	strh r0, [r2, 0x32]
-	ldrh r1, [r4, 0xA]
-	lsls r1, 16
-	asrs r1, 17
-	ldr r3, _080DB27C @ =gUnknown_83FECD6
-	ldrb r0, [r4, 0xC]
-	lsls r0, 26
-	lsrs r0, 30
-	lsls r0, 1
-	adds r0, r3
-	ldrh r0, [r0]
-	subs r1, r0
-	strh r1, [r2, 0x34]
-_080DB260:
-	movs r0, 0
-	pop {r4,r5}
-	pop {r1}
-	bx r1
-	.align 2, 0
-_080DB268: .4byte gFieldEffectArguments
-_080DB26C: .4byte gObjectEvents
-_080DB270: .4byte gFieldEffectObjectTemplatePointers
-_080DB274: .4byte gUnknown_83FECD2
-_080DB278: .4byte gSprites
-_080DB27C: .4byte gUnknown_83FECD6
-	thumb_func_end oei_shadow
-
-	thumb_func_start oamc_shadow
-oamc_shadow: @ 80DB280
-	push {r4,r5,lr}
-	sub sp, 0x4
-	adds r5, r0, 0
-	ldrh r0, [r5, 0x2E]
-	lsls r0, 24
-	lsrs r0, 24
-	ldrh r1, [r5, 0x30]
-	lsls r1, 24
-	lsrs r1, 24
-	ldrh r2, [r5, 0x32]
-	lsls r2, 24
-	lsrs r2, 24
-	mov r3, sp
-	bl TryGetObjectEventIdByLocalIdAndMap
-	lsls r0, 24
-	cmp r0, 0
-	beq _080DB2AE
-	adds r0, r5, 0
-	movs r1, 0x3
-	bl FieldEffectStop
-	b _080DB334
-_080DB2AE:
-	mov r0, sp
-	ldrb r1, [r0]
-	lsls r0, r1, 3
-	adds r0, r1
-	lsls r0, 2
-	ldr r1, _080DB33C @ =gObjectEvents
-	adds r4, r0, r1
-	ldrb r0, [r4, 0x4]
-	lsls r1, r0, 4
-	adds r1, r0
-	lsls r1, 2
-	ldr r0, _080DB340 @ =gSprites
-	adds r1, r0
-	ldrb r0, [r1, 0x5]
-	movs r2, 0xC
-	ands r2, r0
-	ldrb r3, [r5, 0x5]
-	movs r0, 0xD
-	negs r0, r0
-	ands r0, r3
-	orrs r0, r2
-	strb r0, [r5, 0x5]
-	ldrh r0, [r1, 0x20]
-	strh r0, [r5, 0x20]
-	ldrh r0, [r5, 0x34]
-	ldrh r1, [r1, 0x22]
-	adds r0, r1
-	strh r0, [r5, 0x22]
-	ldr r0, [r4]
-	ldr r1, _080DB344 @ =0x00400001
-	ands r0, r1
-	cmp r0, r1
-	bne _080DB32C
-	ldrb r0, [r4, 0x1E]
-	bl MetatileBehavior_IsTallGrass
-	lsls r0, 24
-	cmp r0, 0
-	bne _080DB32C
-	ldrb r0, [r4, 0x1E]
-	bl MetatileBehavior_IsSurfable
-	lsls r0, 24
-	cmp r0, 0
-	bne _080DB32C
-	ldrb r0, [r4, 0x1F]
-	bl MetatileBehavior_IsSurfable
-	lsls r0, 24
-	cmp r0, 0
-	bne _080DB32C
-	ldrb r0, [r4, 0x1E]
-	bl MetatileBehavior_IsReflective
-	lsls r0, 24
-	cmp r0, 0
-	bne _080DB32C
-	ldrb r0, [r4, 0x1F]
-	bl MetatileBehavior_IsReflective
-	lsls r0, 24
-	cmp r0, 0
-	beq _080DB334
-_080DB32C:
-	adds r0, r5, 0
-	movs r1, 0x3
-	bl FieldEffectStop
-_080DB334:
-	add sp, 0x4
-	pop {r4,r5}
-	pop {r0}
-	bx r0
-	.align 2, 0
-_080DB33C: .4byte gObjectEvents
-_080DB340: .4byte gSprites
-_080DB344: .4byte 0x00400001
-	thumb_func_end oamc_shadow
-
-	thumb_func_start oei_grass_normal
-oei_grass_normal: @ 80DB348
-	push {r4,r5,lr}
-	sub sp, 0x4
-	ldr r5, _080DB3E0 @ =gFieldEffectArguments
-	ldrh r1, [r5]
-	mov r0, sp
-	strh r1, [r0]
-	ldrh r0, [r5, 0x4]
-	mov r4, sp
-	adds r4, 0x2
-	strh r0, [r4]
-	mov r0, sp
-	adds r1, r4, 0
-	movs r2, 0x8
-	movs r3, 0x8
-	bl sub_8063BC4
-	ldr r0, _080DB3E4 @ =gFieldEffectObjectTemplatePointers
-	ldr r0, [r0, 0x10]
-	mov r1, sp
-	movs r2, 0
-	ldrsh r1, [r1, r2]
-	movs r3, 0
-	ldrsh r2, [r4, r3]
-	movs r3, 0
-	bl CreateSpriteAtEnd
-	lsls r0, 24
-	lsrs r1, r0, 24
-	cmp r1, 0x40
-	beq _080DB3D4
-	lsls r0, r1, 4
-	adds r0, r1
-	lsls r0, 2
-	ldr r1, _080DB3E8 @ =gSprites
-	adds r3, r0, r1
-	adds r2, r3, 0
-	adds r2, 0x3E
-	ldrb r0, [r2]
-	movs r1, 0x2
-	orrs r0, r1
-	strb r0, [r2]
-	movs r0, 0x3
-	ldrb r1, [r5, 0xC]
-	ands r1, r0
-	lsls r1, 2
-	ldrb r2, [r3, 0x5]
-	movs r0, 0xD
-	negs r0, r0
-	ands r0, r2
-	orrs r0, r1
-	strb r0, [r3, 0x5]
-	ldr r0, [r5, 0x8]
-	strh r0, [r3, 0x2E]
-	ldr r0, [r5]
-	strh r0, [r3, 0x30]
-	ldr r0, [r5, 0x4]
-	strh r0, [r3, 0x32]
-	ldr r0, [r5, 0x10]
-	strh r0, [r3, 0x34]
-	ldr r0, [r5, 0x14]
-	strh r0, [r3, 0x36]
-	ldr r0, [r5, 0x18]
-	strh r0, [r3, 0x38]
-	ldr r0, [r5, 0x1C]
-	cmp r0, 0
-	beq _080DB3D4
-	adds r0, r3, 0
-	movs r1, 0x4
-	bl SeekSpriteAnim
-_080DB3D4:
-	movs r0, 0
-	add sp, 0x4
-	pop {r4,r5}
-	pop {r1}
-	bx r1
-	.align 2, 0
-_080DB3E0: .4byte gFieldEffectArguments
-_080DB3E4: .4byte gFieldEffectObjectTemplatePointers
-_080DB3E8: .4byte gSprites
-	thumb_func_end oei_grass_normal
-
-	thumb_func_start unc_grass_normal
-unc_grass_normal: @ 80DB3EC
-	push {r4-r7,lr}
-	mov r7, r8
-	push {r7}
-	sub sp, 0x4
-	adds r5, r0, 0
-	ldrh r0, [r5, 0x38]
-	lsrs r4, r0, 8
-	lsls r0, 24
-	lsrs r7, r0, 24
-	ldr r3, _080DB498 @ =gCamera
-	ldrb r1, [r3]
-	movs r0, 0x1
-	ands r0, r1
-	cmp r0, 0
-	beq _080DB438
-	ldr r0, _080DB49C @ =gSaveBlock1Ptr
-	ldr r2, [r0]
-	movs r0, 0x5
-	ldrsb r0, [r2, r0]
-	cmp r0, r4
-	bne _080DB41E
-	movs r0, 0x4
-	ldrsb r0, [r2, r0]
-	cmp r0, r7
-	beq _080DB438
-_080DB41E:
-	ldr r1, [r3, 0x4]
-	ldrh r0, [r5, 0x30]
-	subs r0, r1
-	strh r0, [r5, 0x30]
-	ldr r1, [r3, 0x8]
-	ldrh r0, [r5, 0x32]
-	subs r0, r1
-	strh r0, [r5, 0x32]
-	ldrb r1, [r2, 0x5]
-	lsls r1, 8
-	ldrb r0, [r2, 0x4]
-	orrs r0, r1
-	strh r0, [r5, 0x38]
-_080DB438:
-	ldrh r0, [r5, 0x34]
-	lsrs r1, r0, 8
-	mov r8, r1
-	lsls r0, 24
-	lsrs r4, r0, 24
-	ldrh r0, [r5, 0x36]
-	lsls r0, 24
-	lsrs r7, r0, 24
-	movs r2, 0x30
-	ldrsh r0, [r5, r2]
-	movs r2, 0x32
-	ldrsh r1, [r5, r2]
-	bl MapGridGetMetatileBehaviorAt
-	lsls r0, 24
-	lsrs r6, r0, 24
-	mov r0, r8
-	adds r1, r4, 0
-	adds r2, r7, 0
-	mov r3, sp
-	bl TryGetObjectEventIdByLocalIdAndMap
-	lsls r0, 24
-	cmp r0, 0
-	bne _080DB48C
-	adds r0, r6, 0
-	bl MetatileBehavior_IsTallGrass_2
-	lsls r0, 24
-	cmp r0, 0
-	beq _080DB48C
-	movs r1, 0x3C
-	ldrsh r0, [r5, r1]
-	cmp r0, 0
-	beq _080DB4A0
-	adds r0, r5, 0
-	adds r0, 0x3F
-	ldrb r1, [r0]
-	movs r0, 0x10
-	ands r0, r1
-	cmp r0, 0
-	beq _080DB4A0
-_080DB48C:
-	adds r0, r5, 0
-	movs r1, 0x4
-	bl FieldEffectStop
-	b _080DB4E4
-	.align 2, 0
-_080DB498: .4byte gCamera
-_080DB49C: .4byte gSaveBlock1Ptr
-_080DB4A0:
-	mov r0, sp
-	ldrb r1, [r0]
-	lsls r0, r1, 3
-	adds r0, r1
-	lsls r0, 2
-	ldr r1, _080DB4F0 @ =gObjectEvents
-	adds r2, r0, r1
-	ldr r0, [r2, 0x10]
-	ldr r1, [r5, 0x30]
-	cmp r0, r1
-	beq _080DB4C0
-	ldr r0, [r2, 0x14]
-	cmp r0, r1
-	beq _080DB4C0
-	movs r0, 0x1
-	strh r0, [r5, 0x3C]
-_080DB4C0:
-	movs r6, 0
-	adds r0, r5, 0
-	adds r0, 0x2B
-	ldrb r0, [r0]
-	cmp r0, 0
-	bne _080DB4CE
-	movs r6, 0x4
-_080DB4CE:
-	adds r0, r5, 0
-	movs r1, 0
-	bl UpdateObjectEventSpriteVisibility
-	ldrh r1, [r5, 0x2E]
-	lsls r1, 24
-	lsrs r1, 24
-	adds r0, r5, 0
-	adds r2, r6, 0
-	bl sub_80DCD48
-_080DB4E4:
-	add sp, 0x4
-	pop {r3}
-	mov r8, r3
-	pop {r4-r7}
-	pop {r0}
-	bx r0
-	.align 2, 0
-_080DB4F0: .4byte gObjectEvents
-	thumb_func_end unc_grass_normal
-
-	thumb_func_start FldEff_JumpTallGrass
-FldEff_JumpTallGrass: @ 80DB4F4
-	push {r4,lr}
-	ldr r4, _080DB558 @ =gFieldEffectArguments
-	adds r1, r4, 0x4
-	adds r0, r4, 0
-	movs r2, 0x8
-	movs r3, 0xC
-	bl sub_8063BC4
-	ldr r0, _080DB55C @ =gFieldEffectObjectTemplatePointers
-	ldr r0, [r0, 0x28]
-	movs r2, 0
-	ldrsh r1, [r4, r2]
-	movs r3, 0x4
-	ldrsh r2, [r4, r3]
-	movs r3, 0
-	bl CreateSpriteAtEnd
-	lsls r0, 24
-	lsrs r0, 24
-	cmp r0, 0x40
-	beq _080DB550
-	lsls r2, r0, 4
-	adds r2, r0
-	lsls r2, 2
-	ldr r0, _080DB560 @ =gSprites
-	adds r2, r0
-	adds r3, r2, 0
-	adds r3, 0x3E
-	ldrb r0, [r3]
-	movs r1, 0x2
-	orrs r0, r1
-	strb r0, [r3]
-	movs r0, 0x3
-	ldrb r1, [r4, 0xC]
-	ands r1, r0
-	lsls r1, 2
-	ldrb r3, [r2, 0x5]
-	movs r0, 0xD
-	negs r0, r0
-	ands r0, r3
-	orrs r0, r1
-	strb r0, [r2, 0x5]
-	ldr r0, [r4, 0x8]
-	strh r0, [r2, 0x2E]
-	movs r0, 0xC
-	strh r0, [r2, 0x30]
-_080DB550:
-	movs r0, 0
-	pop {r4}
-	pop {r1}
-	bx r1
-	.align 2, 0
-_080DB558: .4byte gFieldEffectArguments
-_080DB55C: .4byte gFieldEffectObjectTemplatePointers
-_080DB560: .4byte gSprites
-	thumb_func_end FldEff_JumpTallGrass
-
-	thumb_func_start sub_80DB564
-sub_80DB564: @ 80DB564
-	push {r4-r7,lr}
-	mov r7, r8
-	push {r7}
-	ldr r4, [sp, 0x18]
-	lsls r0, 24
-	lsrs r0, 24
-	mov r12, r0
-	lsls r1, 24
-	lsrs r7, r1, 24
-	lsls r2, 24
-	lsrs r6, r2, 24
-	movs r5, 0
-	ldr r0, _080DB5D4 @ =gSprites
-	mov r8, r0
-	lsls r3, 16
-	asrs r3, 16
-	lsls r4, 16
-	asrs r4, 16
-_080DB588:
-	lsls r0, r5, 4
-	adds r0, r5
-	lsls r0, 2
-	mov r1, r8
-	adds r2, r0, r1
-	adds r0, r2, 0
-	adds r0, 0x3E
-	ldrb r0, [r0]
-	lsls r0, 31
-	cmp r0, 0
-	beq _080DB5DC
-	ldr r1, [r2, 0x1C]
-	ldr r0, _080DB5D8 @ =unc_grass_normal
-	cmp r1, r0
-	bne _080DB5DC
-	movs r1, 0x30
-	ldrsh r0, [r2, r1]
-	cmp r3, r0
-	bne _080DB5DC
-	movs r1, 0x32
-	ldrsh r0, [r2, r1]
-	cmp r4, r0
-	bne _080DB5DC
-	ldrh r1, [r2, 0x34]
-	lsls r0, r1, 16
-	asrs r0, 24
-	cmp r12, r0
-	bne _080DB5DC
-	movs r0, 0xFF
-	ands r0, r1
-	cmp r7, r0
-	bne _080DB5DC
-	movs r1, 0x36
-	ldrsh r0, [r2, r1]
-	cmp r6, r0
-	bne _080DB5DC
-	adds r0, r5, 0
-	b _080DB5E8
-	.align 2, 0
-_080DB5D4: .4byte gSprites
-_080DB5D8: .4byte unc_grass_normal
-_080DB5DC:
-	adds r0, r5, 0x1
-	lsls r0, 24
-	lsrs r5, r0, 24
-	cmp r5, 0x3F
-	bls _080DB588
-	movs r0, 0x40
-_080DB5E8:
-	pop {r3}
-	mov r8, r3
-	pop {r4-r7}
-	pop {r1}
-	bx r1
-	thumb_func_end sub_80DB564
-
-	thumb_func_start FldEff_LongGrass
-FldEff_LongGrass: @ 80DB5F4
-	push {r4,r5,lr}
-	sub sp, 0x4
-	ldr r5, _080DB690 @ =gFieldEffectArguments
-	ldrh r1, [r5]
-	mov r0, sp
-	strh r1, [r0]
-	ldrh r0, [r5, 0x4]
-	mov r4, sp
-	adds r4, 0x2
-	strh r0, [r4]
-	mov r0, sp
-	adds r1, r4, 0
-	movs r2, 0x8
-	movs r3, 0x8
-	bl sub_8063BC4
-	ldr r0, _080DB694 @ =gFieldEffectObjectTemplatePointers
-	ldr r0, [r0, 0x3C]
-	mov r1, sp
-	movs r2, 0
-	ldrsh r1, [r1, r2]
-	movs r3, 0
-	ldrsh r2, [r4, r3]
-	movs r3, 0
-	bl CreateSpriteAtEnd
-	lsls r0, 24
-	lsrs r1, r0, 24
-	cmp r1, 0x40
-	beq _080DB684
-	lsls r0, r1, 4
-	adds r0, r1
-	lsls r0, 2
-	ldr r1, _080DB698 @ =gSprites
-	adds r4, r0, r1
-	adds r2, r4, 0
-	adds r2, 0x3E
-	ldrb r0, [r2]
-	movs r1, 0x2
-	orrs r0, r1
-	strb r0, [r2]
-	ldrb r0, [r5, 0x8]
-	bl ZCoordToPriority
-	movs r1, 0x3
-	ands r1, r0
-	lsls r1, 2
-	ldrb r2, [r4, 0x5]
-	movs r0, 0xD
-	negs r0, r0
-	ands r0, r2
-	orrs r0, r1
-	strb r0, [r4, 0x5]
-	ldr r0, [r5, 0x8]
-	strh r0, [r4, 0x2E]
-	ldr r0, [r5]
-	strh r0, [r4, 0x30]
-	ldr r0, [r5, 0x4]
-	strh r0, [r4, 0x32]
-	ldr r0, [r5, 0x10]
-	strh r0, [r4, 0x34]
-	ldr r0, [r5, 0x14]
-	strh r0, [r4, 0x36]
-	ldr r0, [r5, 0x18]
-	strh r0, [r4, 0x38]
-	ldr r0, [r5, 0x1C]
-	cmp r0, 0
-	beq _080DB684
-	adds r0, r4, 0
-	movs r1, 0x6
-	bl SeekSpriteAnim
-_080DB684:
-	movs r0, 0
-	add sp, 0x4
-	pop {r4,r5}
-	pop {r1}
-	bx r1
-	.align 2, 0
-_080DB690: .4byte gFieldEffectArguments
-_080DB694: .4byte gFieldEffectObjectTemplatePointers
-_080DB698: .4byte gSprites
-	thumb_func_end FldEff_LongGrass
-
-	thumb_func_start unc_grass_tall
-unc_grass_tall: @ 80DB69C
-	push {r4-r7,lr}
-	mov r7, r8
-	push {r7}
-	sub sp, 0x4
-	adds r5, r0, 0
-	ldrh r0, [r5, 0x38]
-	lsrs r7, r0, 8
-	lsls r0, 24
-	lsrs r6, r0, 24
-	ldr r3, _080DB748 @ =gCamera
-	ldrb r1, [r3]
-	movs r0, 0x1
-	ands r0, r1
-	cmp r0, 0
-	beq _080DB6E8
-	ldr r0, _080DB74C @ =gSaveBlock1Ptr
-	ldr r2, [r0]
-	movs r0, 0x5
-	ldrsb r0, [r2, r0]
-	cmp r0, r7
-	bne _080DB6CE
-	movs r0, 0x4
-	ldrsb r0, [r2, r0]
-	cmp r0, r6
-	beq _080DB6E8
-_080DB6CE:
-	ldr r1, [r3, 0x4]
-	ldrh r0, [r5, 0x30]
-	subs r0, r1
-	strh r0, [r5, 0x30]
-	ldr r1, [r3, 0x8]
-	ldrh r0, [r5, 0x32]
-	subs r0, r1
-	strh r0, [r5, 0x32]
-	ldrb r1, [r2, 0x5]
-	lsls r1, 8
-	ldrb r0, [r2, 0x4]
-	orrs r0, r1
-	strh r0, [r5, 0x38]
-_080DB6E8:
-	ldrh r0, [r5, 0x34]
-	lsrs r1, r0, 8
-	mov r8, r1
-	lsls r0, 24
-	lsrs r7, r0, 24
-	ldrh r0, [r5, 0x36]
-	lsls r0, 24
-	lsrs r6, r0, 24
-	movs r2, 0x30
-	ldrsh r0, [r5, r2]
-	movs r2, 0x32
-	ldrsh r1, [r5, r2]
-	bl MapGridGetMetatileBehaviorAt
-	lsls r0, 24
-	lsrs r4, r0, 24
-	mov r0, r8
-	adds r1, r7, 0
-	adds r2, r6, 0
-	mov r3, sp
-	bl TryGetObjectEventIdByLocalIdAndMap
-	lsls r0, 24
-	cmp r0, 0
-	bne _080DB73C
-	adds r0, r4, 0
-	bl MetatileBehavior_IsLongGrass
-	lsls r0, 24
-	cmp r0, 0
-	beq _080DB73C
-	movs r1, 0x3C
-	ldrsh r0, [r5, r1]
-	cmp r0, 0
-	beq _080DB750
-	adds r0, r5, 0
-	adds r0, 0x3F
-	ldrb r1, [r0]
-	movs r0, 0x10
-	ands r0, r1
-	cmp r0, 0
-	beq _080DB750
-_080DB73C:
-	adds r0, r5, 0
-	movs r1, 0x11
-	bl FieldEffectStop
-	b _080DB786
-	.align 2, 0
-_080DB748: .4byte gCamera
-_080DB74C: .4byte gSaveBlock1Ptr
-_080DB750:
-	mov r0, sp
-	ldrb r1, [r0]
-	lsls r0, r1, 3
-	adds r0, r1
-	lsls r0, 2
-	ldr r1, _080DB794 @ =gObjectEvents
-	adds r2, r0, r1
-	ldr r0, [r2, 0x10]
-	ldr r1, [r5, 0x30]
-	cmp r0, r1
-	beq _080DB770
-	ldr r0, [r2, 0x14]
-	cmp r0, r1
-	beq _080DB770
-	movs r0, 0x1
-	strh r0, [r5, 0x3C]
-_080DB770:
-	adds r0, r5, 0
-	movs r1, 0
-	bl UpdateObjectEventSpriteVisibility
-	ldrh r1, [r5, 0x2E]
-	lsls r1, 24
-	lsrs r1, 24
-	adds r0, r5, 0
-	movs r2, 0
-	bl sub_80DCD48
-_080DB786:
-	add sp, 0x4
-	pop {r3}
-	mov r8, r3
-	pop {r4-r7}
-	pop {r0}
-	bx r0
-	.align 2, 0
-_080DB794: .4byte gObjectEvents
-	thumb_func_end unc_grass_tall
-
-	thumb_func_start FldEff_JumpLongGrass
-FldEff_JumpLongGrass: @ 80DB798
-	push {r4,lr}
-	ldr r4, _080DB7FC @ =gFieldEffectArguments
-	adds r1, r4, 0x4
-	adds r0, r4, 0
-	movs r2, 0x8
-	movs r3, 0x8
-	bl sub_8063BC4
-	ldr r0, _080DB800 @ =gFieldEffectObjectTemplatePointers
-	ldr r0, [r0, 0x40]
-	movs r2, 0
-	ldrsh r1, [r4, r2]
-	movs r3, 0x4
-	ldrsh r2, [r4, r3]
-	movs r3, 0
-	bl CreateSpriteAtEnd
-	lsls r0, 24
-	lsrs r0, 24
-	cmp r0, 0x40
-	beq _080DB7F4
-	lsls r2, r0, 4
-	adds r2, r0
-	lsls r2, 2
-	ldr r0, _080DB804 @ =gSprites
-	adds r2, r0
-	adds r3, r2, 0
-	adds r3, 0x3E
-	ldrb r0, [r3]
-	movs r1, 0x2
-	orrs r0, r1
-	strb r0, [r3]
-	movs r0, 0x3
-	ldrb r1, [r4, 0xC]
-	ands r1, r0
-	lsls r1, 2
-	ldrb r3, [r2, 0x5]
-	movs r0, 0xD
-	negs r0, r0
-	ands r0, r3
-	orrs r0, r1
-	strb r0, [r2, 0x5]
-	ldr r0, [r4, 0x8]
-	strh r0, [r2, 0x2E]
-	movs r0, 0x12
-	strh r0, [r2, 0x30]
-_080DB7F4:
-	movs r0, 0
-	pop {r4}
-	pop {r1}
-	bx r1
-	.align 2, 0
-_080DB7FC: .4byte gFieldEffectArguments
-_080DB800: .4byte gFieldEffectObjectTemplatePointers
-_080DB804: .4byte gSprites
-	thumb_func_end FldEff_JumpLongGrass
-
-	thumb_func_start FldEff_ShortGrass
-FldEff_ShortGrass: @ 80DB808
-	push {r4-r6,lr}
-	ldr r6, _080DB89C @ =gFieldEffectArguments
-	ldrb r0, [r6]
-	ldrb r1, [r6, 0x4]
-	ldrb r2, [r6, 0x8]
-	bl GetObjectEventIdByLocalIdAndMap
-	lsls r0, 24
-	lsrs r0, 24
-	lsls r1, r0, 3
-	adds r1, r0
-	lsls r1, 2
-	ldr r0, _080DB8A0 @ =gObjectEvents
-	adds r5, r1, r0
-	ldr r0, _080DB8A4 @ =gFieldEffectObjectTemplatePointers
-	ldr r0, [r0, 0x78]
-	movs r1, 0
-	movs r2, 0
-	movs r3, 0
-	bl CreateSpriteAtEnd
-	lsls r0, 24
-	lsrs r0, 24
-	cmp r0, 0x40
-	beq _080DB894
-	lsls r2, r0, 4
-	adds r2, r0
-	lsls r2, 2
-	ldr r4, _080DB8A8 @ =gSprites
-	adds r2, r4
-	adds r3, r2, 0
-	adds r3, 0x3E
-	ldrb r0, [r3]
-	movs r1, 0x2
-	orrs r0, r1
-	strb r0, [r3]
-	ldrb r1, [r5, 0x4]
-	lsls r0, r1, 4
-	adds r0, r1
-	lsls r0, 2
-	adds r0, r4
-	ldrb r0, [r0, 0x5]
-	movs r1, 0xC
-	ands r1, r0
-	ldrb r3, [r2, 0x5]
-	movs r0, 0xD
-	negs r0, r0
-	ands r0, r3
-	orrs r0, r1
-	strb r0, [r2, 0x5]
-	ldr r0, [r6]
-	strh r0, [r2, 0x2E]
-	ldr r0, [r6, 0x4]
-	strh r0, [r2, 0x30]
-	ldr r0, [r6, 0x8]
-	strh r0, [r2, 0x32]
-	ldrb r1, [r5, 0x4]
-	lsls r0, r1, 4
-	adds r0, r1
-	lsls r0, 2
-	adds r0, r4
-	ldrh r0, [r0, 0x20]
-	strh r0, [r2, 0x34]
-	ldrb r1, [r5, 0x4]
-	lsls r0, r1, 4
-	adds r0, r1
-	lsls r0, 2
-	adds r0, r4
-	ldrh r0, [r0, 0x22]
-	strh r0, [r2, 0x36]
-_080DB894:
-	movs r0, 0
-	pop {r4-r6}
-	pop {r1}
-	bx r1
-	.align 2, 0
-_080DB89C: .4byte gFieldEffectArguments
-_080DB8A0: .4byte gObjectEvents
-_080DB8A4: .4byte gFieldEffectObjectTemplatePointers
-_080DB8A8: .4byte gSprites
-	thumb_func_end FldEff_ShortGrass
-
-	thumb_func_start sub_80DB8AC
-sub_80DB8AC: @ 80DB8AC
-	push {r4-r7,lr}
-	mov r7, r8
-	push {r7}
-	sub sp, 0x4
-	adds r4, r0, 0
-	ldrh r0, [r4, 0x2E]
-	lsls r0, 24
-	lsrs r0, 24
-	ldrh r1, [r4, 0x30]
-	lsls r1, 24
-	lsrs r1, 24
-	ldrh r2, [r4, 0x32]
-	lsls r2, 24
-	lsrs r2, 24
-	mov r3, sp
-	bl TryGetObjectEventIdByLocalIdAndMap
-	lsls r0, 24
-	cmp r0, 0
-	bne _080DB8EA
-	ldr r5, _080DB8F4 @ =gObjectEvents
-	mov r0, sp
-	ldrb r1, [r0]
-	lsls r0, r1, 3
-	adds r0, r1
-	lsls r0, 2
-	adds r1, r0, r5
-	ldrb r0, [r1, 0x2]
-	lsls r0, 29
-	cmp r0, 0
-	blt _080DB8F8
-_080DB8EA:
-	adds r0, r4, 0
-	movs r1, 0x29
-	bl FieldEffectStop
-	b _080DB98E
-	.align 2, 0
-_080DB8F4: .4byte gObjectEvents
-_080DB8F8:
-	ldrb r0, [r1, 0x5]
-	bl GetObjectEventGraphicsInfo
-	mov r8, r0
-	mov r0, sp
-	ldrb r1, [r0]
-	lsls r0, r1, 3
-	adds r0, r1
-	lsls r0, 2
-	adds r0, r5
-	ldrb r1, [r0, 0x4]
-	lsls r0, r1, 4
-	adds r0, r1
-	lsls r0, 2
-	ldr r1, _080DB99C @ =gSprites
-	adds r6, r0, r1
-	ldrh r5, [r6, 0x22]
-	ldrh r7, [r6, 0x20]
-	movs r0, 0x20
-	ldrsh r1, [r6, r0]
-	movs r2, 0x34
-	ldrsh r0, [r4, r2]
-	cmp r1, r0
-	bne _080DB934
-	lsls r0, r5, 16
-	asrs r0, 16
-	movs r2, 0x36
-	ldrsh r1, [r4, r2]
-	cmp r0, r1
-	beq _080DB94E
-_080DB934:
-	strh r7, [r4, 0x34]
-	strh r5, [r4, 0x36]
-	adds r0, r4, 0
-	adds r0, 0x3F
-	ldrb r1, [r0]
-	movs r0, 0x10
-	ands r0, r1
-	cmp r0, 0
-	beq _080DB94E
-	adds r0, r4, 0
-	movs r1, 0
-	bl StartSpriteAnim
-_080DB94E:
-	strh r7, [r4, 0x20]
-	strh r5, [r4, 0x22]
-	mov r1, r8
-	ldrh r0, [r1, 0xA]
-	lsls r0, 16
-	asrs r0, 17
-	subs r0, 0x8
-	strh r0, [r4, 0x26]
-	adds r0, r6, 0
-	adds r0, 0x43
-	ldrb r0, [r0]
-	subs r0, 0x1
-	adds r1, r4, 0
-	adds r1, 0x43
-	strb r0, [r1]
-	ldrb r0, [r6, 0x5]
-	movs r1, 0xC
-	ands r1, r0
-	ldrb r2, [r4, 0x5]
-	movs r0, 0xD
-	negs r0, r0
-	ands r0, r2
-	orrs r0, r1
-	strb r0, [r4, 0x5]
-	adds r0, r6, 0
-	adds r0, 0x3E
-	ldrb r1, [r0]
-	lsls r1, 29
-	lsrs r1, 31
-	adds r0, r4, 0
-	bl UpdateObjectEventSpriteVisibility
-_080DB98E:
-	add sp, 0x4
-	pop {r3}
-	mov r8, r3
-	pop {r4-r7}
-	pop {r0}
-	bx r0
-	.align 2, 0
-_080DB99C: .4byte gSprites
-	thumb_func_end sub_80DB8AC
-
-	thumb_func_start FldEff_SandFootprints
-FldEff_SandFootprints: @ 80DB9A0
-	push {r4,lr}
-	ldr r4, _080DBA08 @ =gFieldEffectArguments
-	adds r1, r4, 0x4
-	adds r0, r4, 0
-	movs r2, 0x8
-	movs r3, 0x8
-	bl sub_8063BC4
-	ldr r0, _080DBA0C @ =gFieldEffectObjectTemplatePointers
-	ldr r0, [r0, 0x2C]
-	movs r2, 0
-	ldrsh r1, [r4, r2]
-	movs r3, 0x4
-	ldrsh r2, [r4, r3]
-	ldrb r3, [r4, 0x8]
-	bl CreateSpriteAtEnd
-	lsls r0, 24
-	lsrs r1, r0, 24
-	cmp r1, 0x40
-	beq _080DB9FE
-	lsls r0, r1, 4
-	adds r0, r1
-	lsls r0, 2
-	ldr r1, _080DBA10 @ =gSprites
-	adds r0, r1
-	adds r3, r0, 0
-	adds r3, 0x3E
-	ldrb r1, [r3]
-	movs r2, 0x2
-	orrs r1, r2
-	strb r1, [r3]
-	movs r1, 0x3
-	ldrb r2, [r4, 0xC]
-	ands r2, r1
-	lsls r2, 2
-	ldrb r3, [r0, 0x5]
-	movs r1, 0xD
-	negs r1, r1
-	ands r1, r3
-	orrs r1, r2
-	strb r1, [r0, 0x5]
-	movs r1, 0xD
-	strh r1, [r0, 0x3C]
-	ldrb r1, [r4, 0x10]
-	bl StartSpriteAnim
-_080DB9FE:
-	movs r0, 0
-	pop {r4}
-	pop {r1}
-	bx r1
-	.align 2, 0
-_080DBA08: .4byte gFieldEffectArguments
-_080DBA0C: .4byte gFieldEffectObjectTemplatePointers
-_080DBA10: .4byte gSprites
-	thumb_func_end FldEff_SandFootprints
-
-	thumb_func_start FldEff_DeepSandFootprints
-FldEff_DeepSandFootprints: @ 80DBA14
-	push {r4,r5,lr}
-	ldr r4, _080DBA7C @ =gFieldEffectArguments
-	adds r1, r4, 0x4
-	adds r0, r4, 0
-	movs r2, 0x8
-	movs r3, 0x8
-	bl sub_8063BC4
-	ldr r0, _080DBA80 @ =gFieldEffectObjectTemplatePointers
-	ldr r0, [r0, 0x5C]
-	movs r2, 0
-	ldrsh r1, [r4, r2]
-	movs r3, 0x4
-	ldrsh r2, [r4, r3]
-	ldrb r3, [r4, 0x8]
-	bl CreateSpriteAtEnd
-	lsls r0, 24
-	lsrs r1, r0, 24
-	adds r5, r1, 0
-	cmp r1, 0x40
-	beq _080DBA74
-	lsls r0, r1, 4
-	adds r0, r1
-	lsls r0, 2
-	ldr r1, _080DBA84 @ =gSprites
-	adds r0, r1
-	adds r3, r0, 0
-	adds r3, 0x3E
-	ldrb r1, [r3]
-	movs r2, 0x2
-	orrs r1, r2
-	strb r1, [r3]
-	movs r1, 0x3
-	ldrb r2, [r4, 0xC]
-	ands r2, r1
-	lsls r2, 2
-	ldrb r3, [r0, 0x5]
-	movs r1, 0xD
-	negs r1, r1
-	ands r1, r3
-	orrs r1, r2
-	strb r1, [r0, 0x5]
-	movs r1, 0x18
-	strh r1, [r0, 0x3C]
-	ldrb r1, [r4, 0x10]
-	bl StartSpriteAnim
-_080DBA74:
-	adds r0, r5, 0
-	pop {r4,r5}
-	pop {r1}
-	bx r1
-	.align 2, 0
-_080DBA7C: .4byte gFieldEffectArguments
-_080DBA80: .4byte gFieldEffectObjectTemplatePointers
-_080DBA84: .4byte gSprites
-	thumb_func_end FldEff_DeepSandFootprints
-
-	thumb_func_start FldEff_BikeTireTracks
-FldEff_BikeTireTracks: @ 80DBA88
-	push {r4,r5,lr}
-	ldr r4, _080DBAF0 @ =gFieldEffectArguments
-	adds r1, r4, 0x4
-	adds r0, r4, 0
-	movs r2, 0x8
-	movs r3, 0x8
-	bl sub_8063BC4
-	ldr r0, _080DBAF4 @ =gFieldEffectObjectTemplatePointers
-	ldr r0, [r0, 0x6C]
-	movs r2, 0
-	ldrsh r1, [r4, r2]
-	movs r3, 0x4
-	ldrsh r2, [r4, r3]
-	ldrb r3, [r4, 0x8]
-	bl CreateSpriteAtEnd
-	lsls r0, 24
-	lsrs r1, r0, 24
-	adds r5, r1, 0
-	cmp r1, 0x40
-	beq _080DBAE8
-	lsls r0, r1, 4
-	adds r0, r1
-	lsls r0, 2
-	ldr r1, _080DBAF8 @ =gSprites
-	adds r0, r1
-	adds r3, r0, 0
-	adds r3, 0x3E
-	ldrb r1, [r3]
-	movs r2, 0x2
-	orrs r1, r2
-	strb r1, [r3]
-	movs r1, 0x3
-	ldrb r2, [r4, 0xC]
-	ands r2, r1
-	lsls r2, 2
-	ldrb r3, [r0, 0x5]
-	movs r1, 0xD
-	negs r1, r1
-	ands r1, r3
-	orrs r1, r2
-	strb r1, [r0, 0x5]
-	movs r1, 0x23
-	strh r1, [r0, 0x3C]
-	ldrb r1, [r4, 0x10]
-	bl StartSpriteAnim
-_080DBAE8:
-	adds r0, r5, 0
-	pop {r4,r5}
-	pop {r1}
-	bx r1
-	.align 2, 0
-_080DBAF0: .4byte gFieldEffectArguments
-_080DBAF4: .4byte gFieldEffectObjectTemplatePointers
-_080DBAF8: .4byte gSprites
-	thumb_func_end FldEff_BikeTireTracks
-
-	thumb_func_start sub_80DBAFC
-sub_80DBAFC: @ 80DBAFC
-	push {lr}
-	ldr r2, _080DBB14 @ =gUnknown_83FECE0
-	movs r3, 0x2E
-	ldrsh r1, [r0, r3]
-	lsls r1, 2
-	adds r1, r2
-	ldr r1, [r1]
-	bl _call_via_r1
-	pop {r0}
-	bx r0
-	.align 2, 0
-_080DBB14: .4byte gUnknown_83FECE0
-	thumb_func_end sub_80DBAFC
-
-	thumb_func_start sub_80DBB18
-sub_80DBB18: @ 80DBB18
-	push {lr}
-	adds r1, r0, 0
-	ldrh r0, [r1, 0x30]
-	adds r0, 0x1
-	strh r0, [r1, 0x30]
-	lsls r0, 16
-	asrs r0, 16
-	cmp r0, 0x28
-	ble _080DBB2E
-	movs r0, 0x1
-	strh r0, [r1, 0x2E]
-_080DBB2E:
-	adds r0, r1, 0
-	movs r1, 0
-	bl UpdateObjectEventSpriteVisibility
-	pop {r0}
-	bx r0
-	thumb_func_end sub_80DBB18
-
-	thumb_func_start sub_80DBB3C
-sub_80DBB3C: @ 80DBB3C
-	push {r4,lr}
-	adds r4, r0, 0
-	adds r3, r4, 0
-	adds r3, 0x3E
-	ldrb r2, [r3]
-	lsls r0, r2, 29
-	lsrs r0, 31
-	movs r1, 0x1
-	eors r1, r0
-	lsls r1, 2
-	movs r0, 0x5
-	negs r0, r0
-	ands r0, r2
-	orrs r0, r1
-	strb r0, [r3]
-	ldrh r0, [r4, 0x30]
-	adds r0, 0x1
-	strh r0, [r4, 0x30]
-	ldrb r1, [r3]
-	lsls r1, 29
-	lsrs r1, 31
-	adds r0, r4, 0
-	bl UpdateObjectEventSpriteVisibility
-	movs r1, 0x30
-	ldrsh r0, [r4, r1]
-	cmp r0, 0x38
-	ble _080DBB80
-	ldrh r1, [r4, 0x3C]
-	lsls r1, 24
-	lsrs r1, 24
-	adds r0, r4, 0
-	bl FieldEffectStop
-_080DBB80:
-	pop {r4}
-	pop {r0}
-	bx r0
-	thumb_func_end sub_80DBB3C
-
-	thumb_func_start FldEff_Splash
-FldEff_Splash: @ 80DBB88
-	push {r4-r6,lr}
-	ldr r6, _080DBC1C @ =gFieldEffectArguments
-	ldrb r0, [r6]
-	ldrb r1, [r6, 0x4]
-	ldrb r2, [r6, 0x8]
-	bl GetObjectEventIdByLocalIdAndMap
-	lsls r0, 24
-	lsrs r0, 24
-	lsls r1, r0, 3
-	adds r1, r0
-	lsls r1, 2
-	ldr r0, _080DBC20 @ =gObjectEvents
-	adds r5, r1, r0
-	ldr r0, _080DBC24 @ =gFieldEffectObjectTemplatePointers
-	ldr r0, [r0, 0x34]
-	movs r1, 0
-	movs r2, 0
-	movs r3, 0
-	bl CreateSpriteAtEnd
-	lsls r0, 24
-	lsrs r4, r0, 24
-	cmp r4, 0x40
-	beq _080DBC12
-	ldrb r0, [r5, 0x5]
-	bl GetObjectEventGraphicsInfo
-	lsls r3, r4, 4
-	adds r3, r4
-	lsls r3, 2
-	ldr r4, _080DBC28 @ =gSprites
-	adds r3, r4
-	movs r1, 0x3E
-	adds r1, r3
-	mov r12, r1
-	ldrb r1, [r1]
-	movs r2, 0x2
-	orrs r1, r2
-	mov r2, r12
-	strb r1, [r2]
-	ldrb r2, [r5, 0x4]
-	lsls r1, r2, 4
-	adds r1, r2
-	lsls r1, 2
-	adds r1, r4
-	ldrb r1, [r1, 0x5]
-	movs r2, 0xC
-	ands r2, r1
-	ldrb r4, [r3, 0x5]
-	movs r1, 0xD
-	negs r1, r1
-	ands r1, r4
-	orrs r1, r2
-	strb r1, [r3, 0x5]
-	ldr r1, [r6]
-	strh r1, [r3, 0x2E]
-	ldr r1, [r6, 0x4]
-	strh r1, [r3, 0x30]
-	ldr r1, [r6, 0x8]
-	strh r1, [r3, 0x32]
-	ldrh r0, [r0, 0xA]
-	lsls r0, 16
-	asrs r0, 17
-	subs r0, 0x4
-	strh r0, [r3, 0x26]
-	movs r0, 0x3F
-	bl PlaySE
-_080DBC12:
-	movs r0, 0
-	pop {r4-r6}
-	pop {r1}
-	bx r1
-	.align 2, 0
-_080DBC1C: .4byte gFieldEffectArguments
-_080DBC20: .4byte gObjectEvents
-_080DBC24: .4byte gFieldEffectObjectTemplatePointers
-_080DBC28: .4byte gSprites
-	thumb_func_end FldEff_Splash
-
-	thumb_func_start sub_80DBC2C
-sub_80DBC2C: @ 80DBC2C
-	push {r4,lr}
-	sub sp, 0x4
-	adds r4, r0, 0
-	adds r0, 0x3F
-	ldrb r1, [r0]
-	movs r0, 0x10
-	ands r0, r1
-	cmp r0, 0
-	bne _080DBC5C
-	ldrh r0, [r4, 0x2E]
-	lsls r0, 24
-	lsrs r0, 24
-	ldrh r1, [r4, 0x30]
-	lsls r1, 24
-	lsrs r1, 24
-	ldrh r2, [r4, 0x32]
-	lsls r2, 24
-	lsrs r2, 24
-	mov r3, sp
-	bl TryGetObjectEventIdByLocalIdAndMap
-	lsls r0, 24
-	cmp r0, 0
-	beq _080DBC66
-_080DBC5C:
-	adds r0, r4, 0
-	movs r1, 0xF
-	bl FieldEffectStop
-	b _080DBCA6
-_080DBC66:
-	ldr r3, _080DBCB0 @ =gSprites
-	ldr r2, _080DBCB4 @ =gObjectEvents
-	mov r0, sp
-	ldrb r1, [r0]
-	lsls r0, r1, 3
-	adds r0, r1
-	lsls r0, 2
-	adds r0, r2
-	ldrb r1, [r0, 0x4]
-	lsls r0, r1, 4
-	adds r0, r1
-	lsls r0, 2
-	adds r0, r3
-	ldrh r0, [r0, 0x20]
-	strh r0, [r4, 0x20]
-	mov r0, sp
-	ldrb r1, [r0]
-	lsls r0, r1, 3
-	adds r0, r1
-	lsls r0, 2
-	adds r0, r2
-	ldrb r1, [r0, 0x4]
-	lsls r0, r1, 4
-	adds r0, r1
-	lsls r0, 2
-	adds r0, r3
-	ldrh r0, [r0, 0x22]
-	strh r0, [r4, 0x22]
-	adds r0, r4, 0
-	movs r1, 0
-	bl UpdateObjectEventSpriteVisibility
-_080DBCA6:
-	add sp, 0x4
-	pop {r4}
-	pop {r0}
-	bx r0
-	.align 2, 0
-_080DBCB0: .4byte gSprites
-_080DBCB4: .4byte gObjectEvents
-	thumb_func_end sub_80DBC2C
-
-	thumb_func_start FldEff_JumpSmallSplash
-FldEff_JumpSmallSplash: @ 80DBCB8
-	push {r4,lr}
-	ldr r4, _080DBD1C @ =gFieldEffectArguments
-	adds r1, r4, 0x4
-	adds r0, r4, 0
-	movs r2, 0x8
-	movs r3, 0xC
-	bl sub_8063BC4
-	ldr r0, _080DBD20 @ =gFieldEffectObjectTemplatePointers
-	ldr r0, [r0, 0x38]
-	movs r2, 0
-	ldrsh r1, [r4, r2]
-	movs r3, 0x4
-	ldrsh r2, [r4, r3]
-	movs r3, 0
-	bl CreateSpriteAtEnd
-	lsls r0, 24
-	lsrs r0, 24
-	cmp r0, 0x40
-	beq _080DBD14
-	lsls r2, r0, 4
-	adds r2, r0
-	lsls r2, 2
-	ldr r0, _080DBD24 @ =gSprites
-	adds r2, r0
-	adds r3, r2, 0
-	adds r3, 0x3E
-	ldrb r0, [r3]
-	movs r1, 0x2
-	orrs r0, r1
-	strb r0, [r3]
-	movs r0, 0x3
-	ldrb r1, [r4, 0xC]
-	ands r1, r0
-	lsls r1, 2
-	ldrb r3, [r2, 0x5]
-	movs r0, 0xD
-	negs r0, r0
-	ands r0, r3
-	orrs r0, r1
-	strb r0, [r2, 0x5]
-	ldr r0, [r4, 0x8]
-	strh r0, [r2, 0x2E]
-	movs r0, 0x10
-	strh r0, [r2, 0x30]
-_080DBD14:
-	movs r0, 0
-	pop {r4}
-	pop {r1}
-	bx r1
-	.align 2, 0
-_080DBD1C: .4byte gFieldEffectArguments
-_080DBD20: .4byte gFieldEffectObjectTemplatePointers
-_080DBD24: .4byte gSprites
-	thumb_func_end FldEff_JumpSmallSplash
-
-	thumb_func_start oei_water_drop_tall
-oei_water_drop_tall: @ 80DBD28
-	push {r4,lr}
-	ldr r4, _080DBD8C @ =gFieldEffectArguments
-	adds r1, r4, 0x4
-	adds r0, r4, 0
-	movs r2, 0x8
-	movs r3, 0x8
-	bl sub_8063BC4
-	ldr r0, _080DBD90 @ =gFieldEffectObjectTemplatePointers
-	ldr r0, [r0, 0x30]
-	movs r2, 0
-	ldrsh r1, [r4, r2]
-	movs r3, 0x4
-	ldrsh r2, [r4, r3]
-	movs r3, 0
-	bl CreateSpriteAtEnd
-	lsls r0, 24
-	lsrs r0, 24
-	cmp r0, 0x40
-	beq _080DBD84
-	lsls r2, r0, 4
-	adds r2, r0
-	lsls r2, 2
-	ldr r0, _080DBD94 @ =gSprites
-	adds r2, r0
-	adds r3, r2, 0
-	adds r3, 0x3E
-	ldrb r0, [r3]
-	movs r1, 0x2
-	orrs r0, r1
-	strb r0, [r3]
-	movs r0, 0x3
-	ldrb r1, [r4, 0xC]
-	ands r1, r0
-	lsls r1, 2
-	ldrb r3, [r2, 0x5]
-	movs r0, 0xD
-	negs r0, r0
-	ands r0, r3
-	orrs r0, r1
-	strb r0, [r2, 0x5]
-	ldr r0, [r4, 0x8]
-	strh r0, [r2, 0x2E]
-	movs r0, 0xE
-	strh r0, [r2, 0x30]
-_080DBD84:
-	movs r0, 0
-	pop {r4}
-	pop {r1}
-	bx r1
-	.align 2, 0
-_080DBD8C: .4byte gFieldEffectArguments
-_080DBD90: .4byte gFieldEffectObjectTemplatePointers
-_080DBD94: .4byte gSprites
-	thumb_func_end oei_water_drop_tall
-
-	thumb_func_start FldEff_FeetInFlowingWater
-FldEff_FeetInFlowingWater: @ 80DBD98
-	push {r4-r7,lr}
-	ldr r7, _080DBE38 @ =gFieldEffectArguments
-	ldrb r0, [r7]
-	ldrb r1, [r7, 0x4]
-	ldrb r2, [r7, 0x8]
-	bl GetObjectEventIdByLocalIdAndMap
-	lsls r0, 24
-	lsrs r0, 24
-	lsls r1, r0, 3
-	adds r1, r0
-	lsls r1, 2
-	ldr r0, _080DBE3C @ =gObjectEvents
-	adds r6, r1, r0
-	ldr r0, _080DBE40 @ =gFieldEffectObjectTemplatePointers
-	ldr r0, [r0, 0x34]
-	movs r1, 0
-	movs r2, 0
-	movs r3, 0
-	bl CreateSpriteAtEnd
-	lsls r0, 24
-	lsrs r5, r0, 24
-	cmp r5, 0x40
-	beq _080DBE2E
-	ldrb r0, [r6, 0x5]
-	bl GetObjectEventGraphicsInfo
-	adds r4, r0, 0
-	lsls r0, r5, 4
-	adds r0, r5
-	lsls r0, 2
-	ldr r3, _080DBE44 @ =gSprites
-	adds r0, r3
-	ldr r1, _080DBE48 @ =sub_80DBE50
-	str r1, [r0, 0x1C]
-	adds r5, r0, 0
-	adds r5, 0x3E
-	ldrb r1, [r5]
-	movs r2, 0x2
-	orrs r1, r2
-	strb r1, [r5]
-	ldrb r2, [r6, 0x4]
-	lsls r1, r2, 4
-	adds r1, r2
-	lsls r1, 2
-	adds r1, r3
-	ldrb r1, [r1, 0x5]
-	movs r2, 0xC
-	ands r2, r1
-	ldrb r3, [r0, 0x5]
-	movs r1, 0xD
-	negs r1, r1
-	ands r1, r3
-	orrs r1, r2
-	strb r1, [r0, 0x5]
-	ldr r1, [r7]
-	strh r1, [r0, 0x2E]
-	ldr r1, [r7, 0x4]
-	strh r1, [r0, 0x30]
-	ldr r1, [r7, 0x8]
-	strh r1, [r0, 0x32]
-	ldr r1, _080DBE4C @ =0x0000ffff
-	strh r1, [r0, 0x34]
-	movs r1, 0x1
-	negs r1, r1
-	strh r1, [r0, 0x36]
-	ldrh r1, [r4, 0xA]
-	lsls r1, 16
-	asrs r1, 17
-	subs r1, 0x4
-	strh r1, [r0, 0x26]
-	movs r1, 0x1
-	bl StartSpriteAnim
-_080DBE2E:
-	movs r0, 0
-	pop {r4-r7}
-	pop {r1}
-	bx r1
-	.align 2, 0
-_080DBE38: .4byte gFieldEffectArguments
-_080DBE3C: .4byte gObjectEvents
-_080DBE40: .4byte gFieldEffectObjectTemplatePointers
-_080DBE44: .4byte gSprites
-_080DBE48: .4byte sub_80DBE50
-_080DBE4C: .4byte 0x0000ffff
-	thumb_func_end FldEff_FeetInFlowingWater
-
-	thumb_func_start sub_80DBE50
-sub_80DBE50: @ 80DBE50
-	push {r4,r5,lr}
-	sub sp, 0x4
-	adds r4, r0, 0
-	ldrh r0, [r4, 0x2E]
-	lsls r0, 24
-	lsrs r0, 24
-	ldrh r1, [r4, 0x30]
-	lsls r1, 24
-	lsrs r1, 24
-	ldrh r2, [r4, 0x32]
-	lsls r2, 24
-	lsrs r2, 24
-	mov r3, sp
-	bl TryGetObjectEventIdByLocalIdAndMap
-	lsls r0, 24
-	cmp r0, 0
-	bne _080DBE8A
-	ldr r2, _080DBE94 @ =gObjectEvents
-	mov r0, sp
-	ldrb r1, [r0]
-	lsls r0, r1, 3
-	adds r0, r1
-	lsls r0, 2
-	adds r5, r0, r2
-	ldrb r0, [r5, 0x2]
-	lsls r0, 28
-	cmp r0, 0
-	blt _080DBE98
-_080DBE8A:
-	adds r0, r4, 0
-	movs r1, 0x22
-	bl FieldEffectStop
-	b _080DBEE2
-	.align 2, 0
-_080DBE94: .4byte gObjectEvents
-_080DBE98:
-	ldrb r1, [r5, 0x4]
-	lsls r0, r1, 4
-	adds r0, r1
-	lsls r0, 2
-	ldr r1, _080DBEEC @ =gSprites
-	adds r0, r1
-	ldrh r1, [r0, 0x20]
-	strh r1, [r4, 0x20]
-	ldrh r1, [r0, 0x22]
-	strh r1, [r4, 0x22]
-	adds r0, 0x43
-	ldrb r0, [r0]
-	adds r1, r4, 0
-	adds r1, 0x43
-	strb r0, [r1]
-	adds r0, r4, 0
-	movs r1, 0
-	bl UpdateObjectEventSpriteVisibility
-	ldr r1, [r5, 0x10]
-	ldr r0, [r4, 0x34]
-	cmp r1, r0
-	beq _080DBEE2
-	ldrh r0, [r5, 0x10]
-	strh r0, [r4, 0x34]
-	ldrh r0, [r5, 0x12]
-	strh r0, [r4, 0x36]
-	adds r0, r4, 0
-	adds r0, 0x3E
-	ldrb r1, [r0]
-	movs r0, 0x4
-	ands r0, r1
-	cmp r0, 0
-	bne _080DBEE2
-	movs r0, 0x3F
-	bl PlaySE
-_080DBEE2:
-	add sp, 0x4
-	pop {r4,r5}
-	pop {r0}
-	bx r0
-	.align 2, 0
-_080DBEEC: .4byte gSprites
-	thumb_func_end sub_80DBE50
-
-	thumb_func_start oei_ripples
-oei_ripples: @ 80DBEF0
-	push {r4,lr}
-	ldr r0, _080DBF44 @ =gFieldEffectObjectTemplatePointers
-	ldr r0, [r0, 0x14]
-	ldr r4, _080DBF48 @ =gFieldEffectArguments
-	movs r2, 0
-	ldrsh r1, [r4, r2]
-	movs r3, 0x4
-	ldrsh r2, [r4, r3]
-	ldrb r3, [r4, 0x8]
-	bl CreateSpriteAtEnd
-	lsls r0, 24
-	lsrs r0, 24
-	cmp r0, 0x40
-	beq _080DBF3C
-	lsls r2, r0, 4
-	adds r2, r0
-	lsls r2, 2
-	ldr r0, _080DBF4C @ =gSprites
-	adds r2, r0
-	adds r3, r2, 0
-	adds r3, 0x3E
-	ldrb r0, [r3]
-	movs r1, 0x2
-	orrs r0, r1
-	strb r0, [r3]
-	movs r0, 0x3
-	ldrb r1, [r4, 0xC]
-	ands r1, r0
-	lsls r1, 2
-	ldrb r3, [r2, 0x5]
-	movs r0, 0xD
-	negs r0, r0
-	ands r0, r3
-	orrs r0, r1
-	strb r0, [r2, 0x5]
-	movs r0, 0x5
-	strh r0, [r2, 0x2E]
-_080DBF3C:
-	movs r0, 0
-	pop {r4}
-	pop {r1}
-	bx r1
-	.align 2, 0
-_080DBF44: .4byte gFieldEffectObjectTemplatePointers
-_080DBF48: .4byte gFieldEffectArguments
-_080DBF4C: .4byte gSprites
-	thumb_func_end oei_ripples
-
-	thumb_func_start FldEff_HotSpringsWater
-FldEff_HotSpringsWater: @ 80DBF50
-	push {r4-r6,lr}
-	ldr r6, _080DBFE4 @ =gFieldEffectArguments
-	ldrb r0, [r6]
-	ldrb r1, [r6, 0x4]
-	ldrb r2, [r6, 0x8]
-	bl GetObjectEventIdByLocalIdAndMap
-	lsls r0, 24
-	lsrs r0, 24
-	lsls r1, r0, 3
-	adds r1, r0
-	lsls r1, 2
-	ldr r0, _080DBFE8 @ =gObjectEvents
-	adds r5, r1, r0
-	ldr r0, _080DBFEC @ =gFieldEffectObjectTemplatePointers
-	ldr r0, [r0, 0x7C]
-	movs r1, 0
-	movs r2, 0
-	movs r3, 0
-	bl CreateSpriteAtEnd
-	lsls r0, 24
-	lsrs r0, 24
-	cmp r0, 0x40
-	beq _080DBFDC
-	lsls r2, r0, 4
-	adds r2, r0
-	lsls r2, 2
-	ldr r4, _080DBFF0 @ =gSprites
-	adds r2, r4
-	adds r3, r2, 0
-	adds r3, 0x3E
-	ldrb r0, [r3]
-	movs r1, 0x2
-	orrs r0, r1
-	strb r0, [r3]
-	ldrb r1, [r5, 0x4]
-	lsls r0, r1, 4
-	adds r0, r1
-	lsls r0, 2
-	adds r0, r4
-	ldrb r0, [r0, 0x5]
-	movs r1, 0xC
-	ands r1, r0
-	ldrb r3, [r2, 0x5]
-	movs r0, 0xD
-	negs r0, r0
-	ands r0, r3
-	orrs r0, r1
-	strb r0, [r2, 0x5]
-	ldr r0, [r6]
-	strh r0, [r2, 0x2E]
-	ldr r0, [r6, 0x4]
-	strh r0, [r2, 0x30]
-	ldr r0, [r6, 0x8]
-	strh r0, [r2, 0x32]
-	ldrb r1, [r5, 0x4]
-	lsls r0, r1, 4
-	adds r0, r1
-	lsls r0, 2
-	adds r0, r4
-	ldrh r0, [r0, 0x20]
-	strh r0, [r2, 0x34]
-	ldrb r1, [r5, 0x4]
-	lsls r0, r1, 4
-	adds r0, r1
-	lsls r0, 2
-	adds r0, r4
-	ldrh r0, [r0, 0x22]
-	strh r0, [r2, 0x36]
-_080DBFDC:
-	movs r0, 0
-	pop {r4-r6}
-	pop {r1}
-	bx r1
-	.align 2, 0
-_080DBFE4: .4byte gFieldEffectArguments
-_080DBFE8: .4byte gObjectEvents
-_080DBFEC: .4byte gFieldEffectObjectTemplatePointers
-_080DBFF0: .4byte gSprites
-	thumb_func_end FldEff_HotSpringsWater
-
-	thumb_func_start sub_80DBFF4
-sub_80DBFF4: @ 80DBFF4
-	push {r4,r5,lr}
-	sub sp, 0x4
-	adds r4, r0, 0
-	ldrh r0, [r4, 0x2E]
-	lsls r0, 24
-	lsrs r0, 24
-	ldrh r1, [r4, 0x30]
-	lsls r1, 24
-	lsrs r1, 24
-	ldrh r2, [r4, 0x32]
-	lsls r2, 24
-	lsrs r2, 24
-	mov r3, sp
-	bl TryGetObjectEventIdByLocalIdAndMap
-	lsls r0, 24
-	cmp r0, 0
-	bne _080DC02E
-	ldr r5, _080DC038 @ =gObjectEvents
-	mov r0, sp
-	ldrb r1, [r0]
-	lsls r0, r1, 3
-	adds r0, r1
-	lsls r0, 2
-	adds r1, r0, r5
-	ldrb r0, [r1, 0x2]
-	lsls r0, 26
-	cmp r0, 0
-	blt _080DC03C
-_080DC02E:
-	adds r0, r4, 0
-	movs r1, 0x2A
-	bl FieldEffectStop
-	b _080DC080
-	.align 2, 0
-_080DC038: .4byte gObjectEvents
-_080DC03C:
-	ldrb r0, [r1, 0x5]
-	bl GetObjectEventGraphicsInfo
-	mov r1, sp
-	ldrb r2, [r1]
-	lsls r1, r2, 3
-	adds r1, r2
-	lsls r1, 2
-	adds r1, r5
-	ldrb r2, [r1, 0x4]
-	lsls r1, r2, 4
-	adds r1, r2
-	lsls r1, 2
-	ldr r2, _080DC088 @ =gSprites
-	adds r1, r2
-	ldrh r2, [r1, 0x20]
-	strh r2, [r4, 0x20]
-	ldrh r0, [r0, 0xA]
-	lsls r0, 16
-	asrs r0, 17
-	ldrh r2, [r1, 0x22]
-	adds r0, r2
-	subs r0, 0x8
-	strh r0, [r4, 0x22]
-	adds r1, 0x43
-	ldrb r0, [r1]
-	subs r0, 0x1
-	adds r1, r4, 0
-	adds r1, 0x43
-	strb r0, [r1]
-	adds r0, r4, 0
-	movs r1, 0
-	bl UpdateObjectEventSpriteVisibility
-_080DC080:
-	add sp, 0x4
-	pop {r4,r5}
-	pop {r0}
-	bx r0
-	.align 2, 0
-_080DC088: .4byte gSprites
-	thumb_func_end sub_80DBFF4
-
-	thumb_func_start FldEff_Unknown19
-FldEff_Unknown19: @ 80DC08C
-	push {r4,lr}
-	ldr r4, _080DC0EC @ =gFieldEffectArguments
-	adds r1, r4, 0x4
-	adds r0, r4, 0
-	movs r2, 0x8
-	movs r3, 0x8
-	bl sub_8063BC4
-	ldr r0, _080DC0F0 @ =gFieldEffectObjectTemplatePointers
-	ldr r0, [r0, 0x44]
-	movs r2, 0
-	ldrsh r1, [r4, r2]
-	movs r3, 0x4
-	ldrsh r2, [r4, r3]
-	ldrb r3, [r4, 0x8]
-	bl CreateSpriteAtEnd
-	lsls r0, 24
-	lsrs r0, 24
-	cmp r0, 0x40
-	beq _080DC0E4
-	lsls r2, r0, 4
-	adds r2, r0
-	lsls r2, 2
-	ldr r0, _080DC0F4 @ =gSprites
-	adds r2, r0
-	adds r3, r2, 0
-	adds r3, 0x3E
-	ldrb r0, [r3]
-	movs r1, 0x2
-	orrs r0, r1
-	strb r0, [r3]
-	movs r0, 0x3
-	ldrb r1, [r4, 0xC]
-	ands r1, r0
-	lsls r1, 2
-	ldrb r3, [r2, 0x5]
-	movs r0, 0xD
-	negs r0, r0
-	ands r0, r3
-	orrs r0, r1
-	strb r0, [r2, 0x5]
-	movs r0, 0x13
-	strh r0, [r2, 0x2E]
-_080DC0E4:
-	movs r0, 0
-	pop {r4}
-	pop {r1}
-	bx r1
-	.align 2, 0
-_080DC0EC: .4byte gFieldEffectArguments
-_080DC0F0: .4byte gFieldEffectObjectTemplatePointers
-_080DC0F4: .4byte gSprites
-	thumb_func_end FldEff_Unknown19
-
-	thumb_func_start FldEff_Unknown20
-FldEff_Unknown20: @ 80DC0F8
-	push {r4,lr}
-	ldr r4, _080DC158 @ =gFieldEffectArguments
-	adds r1, r4, 0x4
-	adds r0, r4, 0
-	movs r2, 0x8
-	movs r3, 0x8
-	bl sub_8063BC4
-	ldr r0, _080DC15C @ =gFieldEffectObjectTemplatePointers
-	ldr r0, [r0, 0x48]
-	movs r2, 0
-	ldrsh r1, [r4, r2]
-	movs r3, 0x4
-	ldrsh r2, [r4, r3]
-	ldrb r3, [r4, 0x8]
-	bl CreateSpriteAtEnd
-	lsls r0, 24
-	lsrs r0, 24
-	cmp r0, 0x40
-	beq _080DC150
-	lsls r2, r0, 4
-	adds r2, r0
-	lsls r2, 2
-	ldr r0, _080DC160 @ =gSprites
-	adds r2, r0
-	adds r3, r2, 0
-	adds r3, 0x3E
-	ldrb r0, [r3]
-	movs r1, 0x2
-	orrs r0, r1
-	strb r0, [r3]
-	movs r0, 0x3
-	ldrb r1, [r4, 0xC]
-	ands r1, r0
-	lsls r1, 2
-	ldrb r3, [r2, 0x5]
-	movs r0, 0xD
-	negs r0, r0
-	ands r0, r3
-	orrs r0, r1
-	strb r0, [r2, 0x5]
-	movs r0, 0x14
-	strh r0, [r2, 0x2E]
-_080DC150:
-	movs r0, 0
-	pop {r4}
-	pop {r1}
-	bx r1
-	.align 2, 0
-_080DC158: .4byte gFieldEffectArguments
-_080DC15C: .4byte gFieldEffectObjectTemplatePointers
-_080DC160: .4byte gSprites
-	thumb_func_end FldEff_Unknown20
-
-	thumb_func_start FldEff_Unknown21
-FldEff_Unknown21: @ 80DC164
-	push {r4,lr}
-	ldr r4, _080DC1C4 @ =gFieldEffectArguments
-	adds r1, r4, 0x4
-	adds r0, r4, 0
-	movs r2, 0x8
-	movs r3, 0x8
-	bl sub_8063BC4
-	ldr r0, _080DC1C8 @ =gFieldEffectObjectTemplatePointers
-	ldr r0, [r0, 0x4C]
-	movs r2, 0
-	ldrsh r1, [r4, r2]
-	movs r3, 0x4
-	ldrsh r2, [r4, r3]
-	ldrb r3, [r4, 0x8]
-	bl CreateSpriteAtEnd
-	lsls r0, 24
-	lsrs r0, 24
-	cmp r0, 0x40
-	beq _080DC1BC
-	lsls r2, r0, 4
-	adds r2, r0
-	lsls r2, 2
-	ldr r0, _080DC1CC @ =gSprites
-	adds r2, r0
-	adds r3, r2, 0
-	adds r3, 0x3E
-	ldrb r0, [r3]
-	movs r1, 0x2
-	orrs r0, r1
-	strb r0, [r3]
-	movs r0, 0x3
-	ldrb r1, [r4, 0xC]
-	ands r1, r0
-	lsls r1, 2
-	ldrb r3, [r2, 0x5]
-	movs r0, 0xD
-	negs r0, r0
-	ands r0, r3
-	orrs r0, r1
-	strb r0, [r2, 0x5]
-	movs r0, 0x15
-	strh r0, [r2, 0x2E]
-_080DC1BC:
-	movs r0, 0
-	pop {r4}
-	pop {r1}
-	bx r1
-	.align 2, 0
-_080DC1C4: .4byte gFieldEffectArguments
-_080DC1C8: .4byte gFieldEffectObjectTemplatePointers
-_080DC1CC: .4byte gSprites
-	thumb_func_end FldEff_Unknown21
-
-	thumb_func_start FldEff_Unknown22
-FldEff_Unknown22: @ 80DC1D0
-	push {r4,lr}
-	ldr r4, _080DC230 @ =gFieldEffectArguments
-	adds r1, r4, 0x4
-	adds r0, r4, 0
-	movs r2, 0x8
-	movs r3, 0x8
-	bl sub_8063BC4
-	ldr r0, _080DC234 @ =gFieldEffectObjectTemplatePointers
-	ldr r0, [r0, 0x50]
-	movs r2, 0
-	ldrsh r1, [r4, r2]
-	movs r3, 0x4
-	ldrsh r2, [r4, r3]
-	ldrb r3, [r4, 0x8]
-	bl CreateSpriteAtEnd
-	lsls r0, 24
-	lsrs r0, 24
-	cmp r0, 0x40
-	beq _080DC228
-	lsls r2, r0, 4
-	adds r2, r0
-	lsls r2, 2
-	ldr r0, _080DC238 @ =gSprites
-	adds r2, r0
-	adds r3, r2, 0
-	adds r3, 0x3E
-	ldrb r0, [r3]
-	movs r1, 0x2
-	orrs r0, r1
-	strb r0, [r3]
-	movs r0, 0x3
-	ldrb r1, [r4, 0xC]
-	ands r1, r0
-	lsls r1, 2
-	ldrb r3, [r2, 0x5]
-	movs r0, 0xD
-	negs r0, r0
-	ands r0, r3
-	orrs r0, r1
-	strb r0, [r2, 0x5]
-	movs r0, 0x16
-	strh r0, [r2, 0x2E]
-_080DC228:
-	movs r0, 0
-	pop {r4}
-	pop {r1}
-	bx r1
-	.align 2, 0
-_080DC230: .4byte gFieldEffectArguments
-_080DC234: .4byte gFieldEffectObjectTemplatePointers
-_080DC238: .4byte gSprites
-	thumb_func_end FldEff_Unknown22
-
-	thumb_func_start StartAshFieldEffect
-StartAshFieldEffect: @ 80DC23C
-	push {r4,lr}
-	lsls r2, 16
-	lsrs r2, 16
-	ldr r4, _080DC26C @ =gFieldEffectArguments
-	lsls r0, 16
-	asrs r0, 16
-	str r0, [r4]
-	lsls r1, 16
-	asrs r1, 16
-	str r1, [r4, 0x4]
-	movs r0, 0x52
-	str r0, [r4, 0x8]
-	movs r0, 0x1
-	str r0, [r4, 0xC]
-	str r2, [r4, 0x10]
-	lsls r3, 16
-	asrs r3, 16
-	str r3, [r4, 0x14]
-	movs r0, 0x7
-	bl FieldEffectStart
-	pop {r4}
-	pop {r0}
-	bx r0
-	.align 2, 0
-_080DC26C: .4byte gFieldEffectArguments
-	thumb_func_end StartAshFieldEffect
-
-	thumb_func_start FldEff_Ash
-FldEff_Ash: @ 80DC270
-	push {r4,r5,lr}
-	sub sp, 0x4
-	ldr r5, _080DC2F0 @ =gFieldEffectArguments
-	ldrh r1, [r5]
-	mov r0, sp
-	strh r1, [r0]
-	ldrh r0, [r5, 0x4]
-	mov r4, sp
-	adds r4, 0x2
-	strh r0, [r4]
-	mov r0, sp
-	adds r1, r4, 0
-	movs r2, 0x8
-	movs r3, 0x8
-	bl sub_8063BC4
-	ldr r0, _080DC2F4 @ =gFieldEffectObjectTemplatePointers
-	ldr r0, [r0, 0x18]
-	mov r1, sp
-	movs r2, 0
-	ldrsh r1, [r1, r2]
-	movs r3, 0
-	ldrsh r2, [r4, r3]
-	ldrb r3, [r5, 0x8]
-	bl CreateSpriteAtEnd
-	lsls r0, 24
-	lsrs r0, 24
-	cmp r0, 0x40
-	beq _080DC2E6
-	lsls r2, r0, 4
-	adds r2, r0
-	lsls r2, 2
-	ldr r0, _080DC2F8 @ =gSprites
-	adds r2, r0
-	adds r3, r2, 0
-	adds r3, 0x3E
-	ldrb r0, [r3]
-	movs r1, 0x2
-	orrs r0, r1
-	strb r0, [r3]
-	movs r0, 0x3
-	ldrb r1, [r5, 0xC]
-	ands r1, r0
-	lsls r1, 2
-	ldrb r3, [r2, 0x5]
-	movs r0, 0xD
-	negs r0, r0
-	ands r0, r3
-	orrs r0, r1
-	strb r0, [r2, 0x5]
-	ldr r0, [r5]
-	strh r0, [r2, 0x30]
-	ldr r0, [r5, 0x4]
-	strh r0, [r2, 0x32]
-	ldr r0, [r5, 0x10]
-	strh r0, [r2, 0x34]
-	ldr r0, [r5, 0x14]
-	strh r0, [r2, 0x36]
-_080DC2E6:
-	movs r0, 0
-	add sp, 0x4
-	pop {r4,r5}
-	pop {r1}
-	bx r1
-	.align 2, 0
-_080DC2F0: .4byte gFieldEffectArguments
-_080DC2F4: .4byte gFieldEffectObjectTemplatePointers
-_080DC2F8: .4byte gSprites
-	thumb_func_end FldEff_Ash
-
-	thumb_func_start sub_80DC2FC
-sub_80DC2FC: @ 80DC2FC
-	push {lr}
-	ldr r2, _080DC314 @ =gUnknown_83FECE8
-	movs r3, 0x2E
-	ldrsh r1, [r0, r3]
-	lsls r1, 2
-	adds r1, r2
-	ldr r1, [r1]
-	bl _call_via_r1
-	pop {r0}
-	bx r0
-	.align 2, 0
-_080DC314: .4byte gUnknown_83FECE8
-	thumb_func_end sub_80DC2FC
-
-	thumb_func_start sub_80DC318
-sub_80DC318: @ 80DC318
-	push {lr}
-	adds r3, r0, 0
-	adds r2, r3, 0
-	adds r2, 0x3E
-	ldrb r0, [r2]
-	movs r1, 0x4
-	orrs r0, r1
-	strb r0, [r2]
-	subs r2, 0x12
-	ldrb r0, [r2]
-	movs r1, 0x40
-	orrs r0, r1
-	strb r0, [r2]
-	ldrh r0, [r3, 0x36]
-	subs r0, 0x1
-	strh r0, [r3, 0x36]
-	lsls r0, 16
-	cmp r0, 0
-	bne _080DC342
-	movs r0, 0x1
-	strh r0, [r3, 0x2E]
-_080DC342:
-	pop {r0}
-	bx r0
-	thumb_func_end sub_80DC318
-
-	thumb_func_start sub_80DC348
-sub_80DC348: @ 80DC348
-	push {r4,lr}
-	adds r4, r0, 0
-	adds r2, r4, 0
-	adds r2, 0x3E
-	ldrb r1, [r2]
-	movs r0, 0x5
-	negs r0, r0
-	ands r0, r1
-	strb r0, [r2]
-	subs r2, 0x12
-	ldrb r1, [r2]
-	movs r0, 0x41
-	negs r0, r0
-	ands r0, r1
-	strb r0, [r2]
-	movs r1, 0x30
-	ldrsh r0, [r4, r1]
-	movs r2, 0x32
-	ldrsh r1, [r4, r2]
-	ldrh r2, [r4, 0x34]
-	bl MapGridSetMetatileIdAt
-	movs r1, 0x30
-	ldrsh r0, [r4, r1]
-	movs r2, 0x32
-	ldrsh r1, [r4, r2]
-	bl CurrentMapDrawMetatileAt
-	ldr r2, _080DC3A0 @ =gObjectEvents
-	ldr r0, _080DC3A4 @ =gPlayerAvatar
-	ldrb r1, [r0, 0x5]
-	lsls r0, r1, 3
-	adds r0, r1
-	lsls r0, 2
-	adds r0, r2
-	ldrb r1, [r0]
-	movs r2, 0x4
-	orrs r1, r2
-	strb r1, [r0]
-	movs r0, 0x2
-	strh r0, [r4, 0x2E]
-	pop {r4}
-	pop {r0}
-	bx r0
-	.align 2, 0
-_080DC3A0: .4byte gObjectEvents
-_080DC3A4: .4byte gPlayerAvatar
-	thumb_func_end sub_80DC348
-
-	thumb_func_start sub_80DC3A8
-sub_80DC3A8: @ 80DC3A8
-	push {r4,lr}
-	adds r4, r0, 0
-	movs r1, 0
-	bl UpdateObjectEventSpriteVisibility
-	adds r0, r4, 0
-	adds r0, 0x3F
-	ldrb r1, [r0]
-	movs r0, 0x10
-	ands r0, r1
-	cmp r0, 0
-	beq _080DC3C8
-	adds r0, r4, 0
-	movs r1, 0x7
-	bl FieldEffectStop
-_080DC3C8:
-	pop {r4}
-	pop {r0}
-	bx r0
-	thumb_func_end sub_80DC3A8
-
-	thumb_func_start FldEff_SurfBlob
-FldEff_SurfBlob: @ 80DC3D0
-	push {r4,r5,lr}
-	ldr r4, _080DC43C @ =gFieldEffectArguments
-	adds r1, r4, 0x4
-	adds r0, r4, 0
-	movs r2, 0x8
-	movs r3, 0x8
-	bl sub_8063BC4
-	ldr r0, _080DC440 @ =gFieldEffectObjectTemplatePointers
-	ldr r0, [r0, 0x1C]
-	movs r2, 0
-	ldrsh r1, [r4, r2]
-	movs r3, 0x4
-	ldrsh r2, [r4, r3]
-	movs r3, 0x96
-	bl CreateSpriteAtEnd
-	lsls r0, 24
-	lsrs r0, 24
-	adds r5, r0, 0
-	cmp r0, 0x40
-	beq _080DC42C
-	lsls r1, r0, 4
-	adds r1, r0
-	lsls r1, 2
-	ldr r0, _080DC444 @ =gSprites
-	adds r1, r0
-	adds r3, r1, 0
-	adds r3, 0x3E
-	ldrb r0, [r3]
-	movs r2, 0x2
-	orrs r0, r2
-	strb r0, [r3]
-	ldrb r2, [r1, 0x5]
-	movs r0, 0xF
-	ands r0, r2
-	strb r0, [r1, 0x5]
-	ldr r0, [r4, 0x8]
-	movs r2, 0
-	strh r0, [r1, 0x32]
-	strh r2, [r1, 0x34]
-	ldr r0, _080DC448 @ =0x0000ffff
-	strh r0, [r1, 0x3A]
-	movs r0, 0x1
-	negs r0, r0
-	strh r0, [r1, 0x3C]
-_080DC42C:
-	movs r0, 0x8
-	bl FieldEffectActiveListRemove
-	adds r0, r5, 0
-	pop {r4,r5}
-	pop {r1}
-	bx r1
-	.align 2, 0
-_080DC43C: .4byte gFieldEffectArguments
-_080DC440: .4byte gFieldEffectObjectTemplatePointers
-_080DC444: .4byte gSprites
-_080DC448: .4byte 0x0000ffff
-	thumb_func_end FldEff_SurfBlob
-
-	thumb_func_start sub_80DC44C
-sub_80DC44C: @ 80DC44C
-	lsls r0, 24
-	lsrs r0, 24
-	lsls r1, 24
-	ldr r3, _080DC474 @ =gSprites
-	lsls r2, r0, 4
-	adds r2, r0
-	lsls r2, 2
-	adds r2, r3
-	ldrh r0, [r2, 0x2E]
-	movs r3, 0x10
-	negs r3, r3
-	ands r3, r0
-	movs r0, 0xF0
-	lsls r0, 20
-	ands r0, r1
-	lsrs r0, 24
-	orrs r0, r3
-	strh r0, [r2, 0x2E]
-	bx lr
-	.align 2, 0
-_080DC474: .4byte gSprites
-	thumb_func_end sub_80DC44C
-
-	thumb_func_start sub_80DC478
-sub_80DC478: @ 80DC478
-	lsls r0, 24
-	lsrs r0, 24
-	lsls r1, 24
-	ldr r3, _080DC4A0 @ =gSprites
-	lsls r2, r0, 4
-	adds r2, r0
-	lsls r2, 2
-	adds r2, r3
-	ldrh r0, [r2, 0x2E]
-	movs r3, 0xF1
-	negs r3, r3
-	ands r3, r0
-	movs r0, 0xF0
-	lsls r0, 20
-	ands r0, r1
-	lsrs r0, 20
-	orrs r3, r0
-	strh r3, [r2, 0x2E]
-	bx lr
-	.align 2, 0
-_080DC4A0: .4byte gSprites
-	thumb_func_end sub_80DC478
-
-	thumb_func_start sub_80DC4A4
-sub_80DC4A4: @ 80DC4A4
-	push {r4,lr}
-	lsls r0, 24
-	lsrs r0, 24
-	lsls r1, 24
-	ldr r4, _080DC4D0 @ =gSprites
-	lsls r3, r0, 4
-	adds r3, r0
-	lsls r3, 2
-	adds r3, r4
-	ldrh r0, [r3, 0x2E]
-	ldr r4, _080DC4D4 @ =0xfffff0ff
-	ands r4, r0
-	movs r0, 0xF0
-	lsls r0, 20
-	ands r0, r1
-	lsrs r0, 16
-	orrs r4, r0
-	strh r4, [r3, 0x2E]
-	strh r2, [r3, 0x30]
-	pop {r4}
-	pop {r0}
-	bx r0
-	.align 2, 0
-_080DC4D0: .4byte gSprites
-_080DC4D4: .4byte 0xfffff0ff
-	thumb_func_end sub_80DC4A4
-
-	thumb_func_start sub_80DC4D8
-sub_80DC4D8: @ 80DC4D8
-	ldrh r1, [r0, 0x2E]
-	movs r0, 0xF
-	ands r0, r1
-	bx lr
-	thumb_func_end sub_80DC4D8
-
-	thumb_func_start sub_80DC4E0
-sub_80DC4E0: @ 80DC4E0
-	ldrh r1, [r0, 0x2E]
-	movs r0, 0xF0
-	ands r0, r1
-	lsrs r0, 4
-	bx lr
-	thumb_func_end sub_80DC4E0
-
-	thumb_func_start sub_80DC4EC
-sub_80DC4EC: @ 80DC4EC
-	ldrh r1, [r0, 0x2E]
-	movs r0, 0xF0
-	lsls r0, 4
-	ands r0, r1
-	lsrs r0, 8
-	bx lr
-	thumb_func_end sub_80DC4EC
-
-	thumb_func_start sub_80DC4F8
-sub_80DC4F8: @ 80DC4F8
-	push {r4-r6,lr}
-	adds r6, r0, 0
-	movs r1, 0x32
-	ldrsh r0, [r6, r1]
-	lsls r4, r0, 3
-	adds r4, r0
-	lsls r4, 2
-	ldr r0, _080DC548 @ =gObjectEvents
-	adds r4, r0
-	ldrb r0, [r4, 0x4]
-	lsls r5, r0, 4
-	adds r5, r0
-	lsls r5, 2
-	ldr r0, _080DC54C @ =gSprites
-	adds r5, r0
-	adds r0, r4, 0
-	adds r1, r6, 0
-	bl sub_80DC550
-	adds r0, r4, 0
-	adds r1, r6, 0
-	bl sub_80DC588
-	adds r0, r4, 0
-	adds r1, r5, 0
-	adds r2, r6, 0
-	bl sub_80DC61C
-	ldrb r0, [r5, 0x5]
-	movs r1, 0xC
-	ands r1, r0
-	ldrb r2, [r6, 0x5]
-	movs r0, 0xD
-	negs r0, r0
-	ands r0, r2
-	orrs r0, r1
-	strb r0, [r6, 0x5]
-	pop {r4-r6}
-	pop {r0}
-	bx r0
-	.align 2, 0
-_080DC548: .4byte gObjectEvents
-_080DC54C: .4byte gSprites
-	thumb_func_end sub_80DC4F8
-
-	thumb_func_start sub_80DC550
-sub_80DC550: @ 80DC550
-	push {r4,r5,lr}
-	sub sp, 0x8
-	adds r5, r0, 0
-	adds r4, r1, 0
-	ldr r1, _080DC584 @ =gUnknown_83FECF4
-	mov r0, sp
-	movs r2, 0x5
-	bl memcpy
-	adds r0, r4, 0
-	bl sub_80DC4E0
-	lsls r0, 24
-	cmp r0, 0
-	bne _080DC57C
-	ldrb r0, [r5, 0x18]
-	lsrs r0, 4
-	add r0, sp
-	ldrb r1, [r0]
-	adds r0, r4, 0
-	bl StartSpriteAnimIfDifferent
-_080DC57C:
-	add sp, 0x8
-	pop {r4,r5}
-	pop {r0}
-	bx r0
-	.align 2, 0
-_080DC584: .4byte gUnknown_83FECF4
-	thumb_func_end sub_80DC550
-
-	thumb_func_start sub_80DC588
-sub_80DC588: @ 80DC588
-	push {r4-r7,lr}
-	mov r7, r8
-	push {r7}
-	sub sp, 0x4
-	adds r4, r1, 0
-	ldrh r2, [r0, 0x10]
-	mov r1, sp
-	strh r2, [r1]
-	ldrh r1, [r0, 0x12]
-	mov r0, sp
-	adds r0, 0x2
-	strh r1, [r0]
-	movs r2, 0x26
-	ldrsh r3, [r4, r2]
-	mov r8, r0
-	cmp r3, 0
-	bne _080DC610
-	mov r0, sp
-	movs r5, 0
-	ldrsh r2, [r0, r5]
-	movs r5, 0x3A
-	ldrsh r0, [r4, r5]
-	cmp r2, r0
-	bne _080DC5C4
-	lsls r0, r1, 16
-	asrs r0, 16
-	movs r5, 0x3C
-	ldrsh r1, [r4, r5]
-	cmp r0, r1
-	beq _080DC610
-_080DC5C4:
-	strh r3, [r4, 0x38]
-	strh r2, [r4, 0x3A]
-	mov r1, r8
-	movs r2, 0
-	ldrsh r0, [r1, r2]
-	strh r0, [r4, 0x3C]
-	movs r5, 0x1
-	mov r7, r8
-	mov r6, sp
-_080DC5D6:
-	adds r0, r5, 0
-	mov r1, sp
-	adds r2, r7, 0
-	bl MoveCoords
-	movs r1, 0
-	ldrsh r0, [r6, r1]
-	movs r2, 0
-	ldrsh r1, [r7, r2]
-	bl MapGridGetZCoordAt
-	lsls r0, 24
-	lsrs r0, 24
-	cmp r0, 0x3
-	bne _080DC5FC
-	ldrh r0, [r4, 0x38]
-	adds r0, 0x1
-	strh r0, [r4, 0x38]
-	b _080DC610
-_080DC5FC:
-	adds r0, r5, 0x1
-	lsls r0, 24
-	lsrs r5, r0, 24
-	ldrh r0, [r4, 0x3A]
-	strh r0, [r6]
-	ldrh r0, [r4, 0x3C]
-	mov r1, r8
-	strh r0, [r1]
-	cmp r5, 0x4
-	bls _080DC5D6
-_080DC610:
-	add sp, 0x4
-	pop {r3}
-	mov r8, r3
-	pop {r4-r7}
-	pop {r0}
-	bx r0
-	thumb_func_end sub_80DC588
-
-	thumb_func_start sub_80DC61C
-sub_80DC61C: @ 80DC61C
-	push {r4,r5,lr}
-	sub sp, 0x4
-	adds r5, r1, 0
-	adds r4, r2, 0
-	ldr r1, _080DC680 @ =gUnknown_83FECFA
-	mov r0, sp
-	movs r2, 0x4
-	bl memcpy
-	adds r0, r4, 0
-	bl sub_80DC4D8
-	lsls r0, 24
-	lsrs r0, 24
-	adds r2, r0, 0
-	cmp r2, 0
-	beq _080DC6A6
-	ldrh r1, [r4, 0x36]
-	adds r1, 0x1
-	strh r1, [r4, 0x36]
-	movs r3, 0x38
-	ldrsh r0, [r4, r3]
-	lsls r0, 1
-	add r0, sp
-	ldrh r0, [r0]
-	ands r1, r0
-	cmp r1, 0
-	bne _080DC65C
-	ldrh r0, [r4, 0x34]
-	ldrh r1, [r4, 0x26]
-	adds r0, r1
-	strh r0, [r4, 0x26]
-_080DC65C:
-	ldrh r1, [r4, 0x36]
-	movs r0, 0x1F
-	ands r0, r1
-	cmp r0, 0
-	bne _080DC66C
-	ldrh r0, [r4, 0x34]
-	negs r0, r0
-	strh r0, [r4, 0x34]
-_080DC66C:
-	cmp r2, 0x2
-	beq _080DC6A6
-	adds r0, r4, 0
-	bl sub_80DC4EC
-	lsls r0, 24
-	cmp r0, 0
-	bne _080DC684
-	ldrh r0, [r4, 0x26]
-	b _080DC68A
-	.align 2, 0
-_080DC680: .4byte gUnknown_83FECFA
-_080DC684:
-	ldrh r0, [r4, 0x26]
-	ldrh r3, [r4, 0x30]
-	adds r0, r3
-_080DC68A:
-	strh r0, [r5, 0x26]
-	adds r0, r4, 0
-	adds r0, 0x2B
-	ldrb r0, [r0]
-	cmp r0, 0
-	beq _080DC69C
-	ldrh r0, [r5, 0x26]
-	adds r0, 0x1
-	strh r0, [r5, 0x26]
-_080DC69C:
-	ldrh r0, [r5, 0x20]
-	strh r0, [r4, 0x20]
-	ldrh r0, [r5, 0x22]
-	adds r0, 0x8
-	strh r0, [r4, 0x22]
-_080DC6A6:
-	add sp, 0x4
-	pop {r4,r5}
-	pop {r0}
-	bx r0
-	thumb_func_end sub_80DC61C
-
-	thumb_func_start sub_80DC6B0
-sub_80DC6B0: @ 80DC6B0
-	push {r4,lr}
-	adds r4, r0, 0
-	lsls r4, 24
-	lsrs r4, 24
-	ldr r0, _080DC6F4 @ =gDummySpriteTemplate
-	movs r1, 0
-	movs r2, 0
-	movs r3, 0xFF
-	bl CreateSpriteAtEnd
-	lsls r0, 24
-	lsrs r0, 24
-	lsls r2, r0, 4
-	adds r2, r0
-	lsls r2, 2
-	ldr r1, _080DC6F8 @ =gSprites
-	adds r2, r1
-	ldr r1, _080DC6FC @ =sub_80DC700
-	str r1, [r2, 0x1C]
-	movs r1, 0x3E
-	adds r1, r2
-	mov r12, r1
-	ldrb r1, [r1]
-	movs r3, 0x4
-	orrs r1, r3
-	mov r3, r12
-	strb r1, [r3]
-	strh r4, [r2, 0x2E]
-	movs r1, 0x1
-	strh r1, [r2, 0x30]
-	pop {r4}
-	pop {r1}
-	bx r1
-	.align 2, 0
-_080DC6F4: .4byte gDummySpriteTemplate
-_080DC6F8: .4byte gSprites
-_080DC6FC: .4byte sub_80DC700
-	thumb_func_end sub_80DC6B0
-
-	thumb_func_start sub_80DC700
-sub_80DC700: @ 80DC700
-	push {lr}
-	adds r2, r0, 0
-	movs r0, 0x2E
-	ldrsh r1, [r2, r0]
-	lsls r0, r1, 4
-	adds r0, r1
-	lsls r0, 2
-	ldr r1, _080DC73C @ =gSprites
-	adds r3, r0, r1
-	ldrh r1, [r2, 0x32]
-	adds r0, r1, 0x1
-	strh r0, [r2, 0x32]
-	movs r0, 0x3
-	ands r0, r1
-	cmp r0, 0
-	bne _080DC728
-	ldrh r0, [r2, 0x30]
-	ldrh r1, [r3, 0x26]
-	adds r0, r1
-	strh r0, [r3, 0x26]
-_080DC728:
-	ldrh r1, [r2, 0x32]
-	movs r0, 0xF
-	ands r0, r1
-	cmp r0, 0
-	bne _080DC738
-	ldrh r0, [r2, 0x30]
-	negs r0, r0
-	strh r0, [r2, 0x30]
-_080DC738:
-	pop {r0}
-	bx r0
-	.align 2, 0
-_080DC73C: .4byte gSprites
-	thumb_func_end sub_80DC700
-
-	thumb_func_start FldEff_Dust
-FldEff_Dust: @ 80DC740
-	push {r4,lr}
-	ldr r4, _080DC7A4 @ =gFieldEffectArguments
-	adds r1, r4, 0x4
-	adds r0, r4, 0
-	movs r2, 0x8
-	movs r3, 0xC
-	bl sub_8063BC4
-	ldr r0, _080DC7A8 @ =gFieldEffectObjectTemplatePointers
-	ldr r0, [r0, 0x24]
-	movs r2, 0
-	ldrsh r1, [r4, r2]
-	movs r3, 0x4
-	ldrsh r2, [r4, r3]
-	movs r3, 0
-	bl CreateSpriteAtEnd
-	lsls r0, 24
-	lsrs r0, 24
-	cmp r0, 0x40
-	beq _080DC79C
-	lsls r2, r0, 4
-	adds r2, r0
-	lsls r2, 2
-	ldr r0, _080DC7AC @ =gSprites
-	adds r2, r0
-	adds r3, r2, 0
-	adds r3, 0x3E
-	ldrb r0, [r3]
-	movs r1, 0x2
-	orrs r0, r1
-	strb r0, [r3]
-	movs r0, 0x3
-	ldrb r1, [r4, 0xC]
-	ands r1, r0
-	lsls r1, 2
-	ldrb r3, [r2, 0x5]
-	movs r0, 0xD
-	negs r0, r0
-	ands r0, r3
-	orrs r0, r1
-	strb r0, [r2, 0x5]
-	ldr r0, [r4, 0x8]
-	strh r0, [r2, 0x2E]
-	movs r0, 0xA
-	strh r0, [r2, 0x30]
-_080DC79C:
-	movs r0, 0
-	pop {r4}
-	pop {r1}
-	bx r1
-	.align 2, 0
-_080DC7A4: .4byte gFieldEffectArguments
-_080DC7A8: .4byte gFieldEffectObjectTemplatePointers
-_080DC7AC: .4byte gSprites
-	thumb_func_end FldEff_Dust
-
-	thumb_func_start FldEff_SandPile
-FldEff_SandPile: @ 80DC7B0
-	push {r4-r7,lr}
-	ldr r7, _080DC85C @ =gFieldEffectArguments
-	ldrb r0, [r7]
-	ldrb r1, [r7, 0x4]
-	ldrb r2, [r7, 0x8]
-	bl GetObjectEventIdByLocalIdAndMap
-	lsls r0, 24
-	lsrs r0, 24
-	lsls r1, r0, 3
-	adds r1, r0
-	lsls r1, 2
-	ldr r0, _080DC860 @ =gObjectEvents
-	adds r6, r1, r0
-	ldr r0, _080DC864 @ =gFieldEffectObjectTemplatePointers
-	ldr r0, [r0, 0x74]
-	movs r1, 0
-	movs r2, 0
-	movs r3, 0
-	bl CreateSpriteAtEnd
-	lsls r0, 24
-	lsrs r4, r0, 24
-	cmp r4, 0x40
-	beq _080DC854
-	ldrb r0, [r6, 0x5]
-	bl GetObjectEventGraphicsInfo
-	adds r5, r0, 0
-	lsls r0, r4, 4
-	adds r0, r4
-	lsls r0, 2
-	ldr r4, _080DC868 @ =gSprites
-	adds r0, r4
-	adds r3, r0, 0
-	adds r3, 0x3E
-	ldrb r1, [r3]
-	movs r2, 0x2
-	orrs r1, r2
-	strb r1, [r3]
-	ldrb r2, [r6, 0x4]
-	lsls r1, r2, 4
-	adds r1, r2
-	lsls r1, 2
-	adds r1, r4
-	ldrb r1, [r1, 0x5]
-	movs r2, 0xC
-	ands r2, r1
-	ldrb r3, [r0, 0x5]
-	movs r1, 0xD
-	negs r1, r1
-	ands r1, r3
-	orrs r1, r2
-	strb r1, [r0, 0x5]
-	ldr r1, [r7]
-	strh r1, [r0, 0x2E]
-	ldr r1, [r7, 0x4]
-	strh r1, [r0, 0x30]
-	ldr r1, [r7, 0x8]
-	strh r1, [r0, 0x32]
-	ldrb r2, [r6, 0x4]
-	lsls r1, r2, 4
-	adds r1, r2
-	lsls r1, 2
-	adds r1, r4
-	ldrh r1, [r1, 0x20]
-	strh r1, [r0, 0x34]
-	ldrb r2, [r6, 0x4]
-	lsls r1, r2, 4
-	adds r1, r2
-	lsls r1, 2
-	adds r1, r4
-	ldrh r1, [r1, 0x22]
-	strh r1, [r0, 0x36]
-	ldrh r1, [r5, 0xA]
-	lsls r1, 16
-	asrs r1, 17
-	subs r1, 0x2
-	strh r1, [r0, 0x26]
-	movs r1, 0x2
-	bl SeekSpriteAnim
-_080DC854:
-	movs r0, 0
-	pop {r4-r7}
-	pop {r1}
-	bx r1
-	.align 2, 0
-_080DC85C: .4byte gFieldEffectArguments
-_080DC860: .4byte gObjectEvents
-_080DC864: .4byte gFieldEffectObjectTemplatePointers
-_080DC868: .4byte gSprites
-	thumb_func_end FldEff_SandPile
-
-	thumb_func_start sub_80DC86C
-sub_80DC86C: @ 80DC86C
-	push {r4-r6,lr}
-	sub sp, 0x4
-	adds r4, r0, 0
-	ldrh r0, [r4, 0x2E]
-	lsls r0, 24
-	lsrs r0, 24
-	ldrh r1, [r4, 0x30]
-	lsls r1, 24
-	lsrs r1, 24
-	ldrh r2, [r4, 0x32]
-	lsls r2, 24
-	lsrs r2, 24
-	mov r3, sp
-	bl TryGetObjectEventIdByLocalIdAndMap
-	lsls r0, 24
-	cmp r0, 0
-	bne _080DC8A6
-	ldr r2, _080DC8B0 @ =gObjectEvents
-	mov r0, sp
-	ldrb r1, [r0]
-	lsls r0, r1, 3
-	adds r0, r1
-	lsls r0, 2
-	adds r1, r0, r2
-	ldrb r0, [r1, 0x2]
-	lsls r0, 27
-	cmp r0, 0
-	blt _080DC8B4
-_080DC8A6:
-	adds r0, r4, 0
-	movs r1, 0x27
-	bl FieldEffectStop
-	b _080DC926
-	.align 2, 0
-_080DC8B0: .4byte gObjectEvents
-_080DC8B4:
-	ldr r2, _080DC930 @ =gSprites
-	ldrb r1, [r1, 0x4]
-	lsls r0, r1, 4
-	adds r0, r1
-	lsls r0, 2
-	adds r0, r2
-	ldrh r5, [r0, 0x22]
-	ldrh r6, [r0, 0x20]
-	movs r2, 0x20
-	ldrsh r1, [r0, r2]
-	movs r2, 0x34
-	ldrsh r0, [r4, r2]
-	cmp r1, r0
-	bne _080DC8DC
-	lsls r0, r5, 16
-	asrs r0, 16
-	movs r2, 0x36
-	ldrsh r1, [r4, r2]
-	cmp r0, r1
-	beq _080DC8F6
-_080DC8DC:
-	strh r6, [r4, 0x34]
-	strh r5, [r4, 0x36]
-	adds r0, r4, 0
-	adds r0, 0x3F
-	ldrb r1, [r0]
-	movs r0, 0x10
-	ands r0, r1
-	cmp r0, 0
-	beq _080DC8F6
-	adds r0, r4, 0
-	movs r1, 0
-	bl StartSpriteAnim
-_080DC8F6:
-	strh r6, [r4, 0x20]
-	strh r5, [r4, 0x22]
-	ldr r3, _080DC930 @ =gSprites
-	ldr r2, _080DC934 @ =gObjectEvents
-	mov r0, sp
-	ldrb r1, [r0]
-	lsls r0, r1, 3
-	adds r0, r1
-	lsls r0, 2
-	adds r0, r2
-	ldrb r1, [r0, 0x4]
-	lsls r0, r1, 4
-	adds r0, r1
-	lsls r0, 2
-	adds r0, r3
-	adds r0, 0x43
-	ldrb r0, [r0]
-	adds r1, r4, 0
-	adds r1, 0x43
-	strb r0, [r1]
-	adds r0, r4, 0
-	movs r1, 0
-	bl UpdateObjectEventSpriteVisibility
-_080DC926:
-	add sp, 0x4
-	pop {r4-r6}
-	pop {r0}
-	bx r0
-	.align 2, 0
-_080DC930: .4byte gSprites
-_080DC934: .4byte gObjectEvents
-	thumb_func_end sub_80DC86C
-
-	thumb_func_start FldEff_Bubbles
-FldEff_Bubbles: @ 80DC938
-	push {r4,lr}
-	ldr r4, _080DC990 @ =gFieldEffectArguments
-	adds r1, r4, 0x4
-	adds r0, r4, 0
-	movs r2, 0x8
-	movs r3, 0
-	bl sub_8063BC4
-	ldr r0, _080DC994 @ =gFieldEffectObjectTemplatePointers
-	adds r0, 0x88
-	ldr r0, [r0]
-	movs r2, 0
-	ldrsh r1, [r4, r2]
-	movs r3, 0x4
-	ldrsh r2, [r4, r3]
-	movs r3, 0x52
-	bl CreateSpriteAtEnd
-	lsls r0, 24
-	lsrs r0, 24
-	cmp r0, 0x40
-	beq _080DC988
-	lsls r1, r0, 4
-	adds r1, r0
-	lsls r1, 2
-	ldr r0, _080DC998 @ =gSprites
-	adds r1, r0
-	adds r3, r1, 0
-	adds r3, 0x3E
-	ldrb r0, [r3]
-	movs r2, 0x2
-	orrs r0, r2
-	strb r0, [r3]
-	ldrb r2, [r1, 0x5]
-	movs r0, 0xD
-	negs r0, r0
-	ands r0, r2
-	movs r2, 0x4
-	orrs r0, r2
-	strb r0, [r1, 0x5]
-_080DC988:
-	movs r0, 0
-	pop {r4}
-	pop {r1}
-	bx r1
-	.align 2, 0
-_080DC990: .4byte gFieldEffectArguments
-_080DC994: .4byte gFieldEffectObjectTemplatePointers
-_080DC998: .4byte gSprites
-	thumb_func_end FldEff_Bubbles
-
-	thumb_func_start sub_80DC99C
-sub_80DC99C: @ 80DC99C
-	push {r4,lr}
-	adds r4, r0, 0
-	ldrh r0, [r4, 0x2E]
-	adds r0, 0x80
-	movs r1, 0x80
-	lsls r1, 1
-	ands r0, r1
-	strh r0, [r4, 0x2E]
-	lsls r0, 16
-	asrs r0, 24
-	ldrh r1, [r4, 0x22]
-	subs r1, r0
-	strh r1, [r4, 0x22]
-	adds r0, r4, 0
-	movs r1, 0
-	bl UpdateObjectEventSpriteVisibility
-	ldrh r1, [r4, 0x3E]
-	ldr r0, _080DC9D8 @ =0x00001004
-	ands r0, r1
-	cmp r0, 0
-	beq _080DC9D0
-	adds r0, r4, 0
-	movs r1, 0x35
-	bl FieldEffectStop
-_080DC9D0:
-	pop {r4}
-	pop {r0}
-	bx r0
-	.align 2, 0
-_080DC9D8: .4byte 0x00001004
-	thumb_func_end sub_80DC99C
-
-	thumb_func_start FldEff_BerryTreeGrowthSparkle
-FldEff_BerryTreeGrowthSparkle: @ 80DC9DC
-	movs r0, 0
-	bx lr
-	thumb_func_end FldEff_BerryTreeGrowthSparkle
-
-	thumb_func_start ShowTreeDisguiseFieldEffect
-ShowTreeDisguiseFieldEffect: @ 80DC9E0
-	push {lr}
-	movs r0, 0x1C
-	movs r1, 0x18
-	movs r2, 0x4
-	bl ShowDisguiseFieldEffect
-	pop {r1}
-	bx r1
-	thumb_func_end ShowTreeDisguiseFieldEffect
-
-	thumb_func_start ShowMountainDisguiseFieldEffect
-ShowMountainDisguiseFieldEffect: @ 80DC9F0
-	push {lr}
-	movs r0, 0x1D
-	movs r1, 0x19
-	movs r2, 0x3
-	bl ShowDisguiseFieldEffect
-	pop {r1}
-	bx r1
-	thumb_func_end ShowMountainDisguiseFieldEffect
-
-	thumb_func_start ShowSandDisguiseFieldEffect
-ShowSandDisguiseFieldEffect: @ 80DCA00
-	push {lr}
-	movs r0, 0x24
-	movs r1, 0x1C
-	movs r2, 0x2
-	bl ShowDisguiseFieldEffect
-	pop {r1}
-	bx r1
-	thumb_func_end ShowSandDisguiseFieldEffect
-
-	thumb_func_start ShowDisguiseFieldEffect
-ShowDisguiseFieldEffect: @ 80DCA10
-	push {r4-r7,lr}
-	mov r7, r8
-	push {r7}
-	sub sp, 0x4
-	lsls r0, 24
-	lsrs r4, r0, 24
-	mov r8, r4
-	lsls r1, 24
-	lsrs r6, r1, 24
-	lsls r2, 24
-	lsrs r7, r2, 24
-	ldr r5, _080DCA44 @ =gFieldEffectArguments
-	ldrb r0, [r5]
-	ldrb r1, [r5, 0x4]
-	ldrb r2, [r5, 0x8]
-	mov r3, sp
-	bl TryGetObjectEventIdByLocalIdAndMap
-	lsls r0, 24
-	cmp r0, 0
-	beq _080DCA48
-	adds r0, r4, 0
-	bl FieldEffectActiveListRemove
-	movs r0, 0x40
-	b _080DCAB4
-	.align 2, 0
-_080DCA44: .4byte gFieldEffectArguments
-_080DCA48:
-	ldr r1, _080DCAC0 @ =gFieldEffectObjectTemplatePointers
-	lsls r0, r6, 2
-	adds r0, r1
-	ldr r0, [r0]
-	movs r1, 0
-	movs r2, 0
-	movs r3, 0
-	bl CreateSpriteAtEnd
-	mov r1, sp
-	strb r0, [r1]
-	lsls r0, 24
-	lsrs r0, 24
-	cmp r0, 0x40
-	beq _080DCAB0
-	mov r0, sp
-	ldrb r0, [r0]
-	lsls r2, r0, 4
-	adds r2, r0
-	lsls r2, 2
-	ldr r0, _080DCAC4 @ =gSprites
-	adds r2, r0
-	movs r0, 0x3E
-	adds r0, r2
-	mov r12, r0
-	ldrb r3, [r0]
-	lsls r1, r3, 30
-	lsrs r1, 31
-	adds r1, 0x1
-	movs r0, 0x1
-	ands r1, r0
-	lsls r1, 1
-	movs r0, 0x3
-	negs r0, r0
-	ands r0, r3
-	orrs r0, r1
-	mov r1, r12
-	strb r0, [r1]
-	lsls r3, r7, 4
-	ldrb r1, [r2, 0x5]
-	movs r0, 0xF
-	ands r0, r1
-	orrs r0, r3
-	strb r0, [r2, 0x5]
-	mov r0, r8
-	strh r0, [r2, 0x30]
-	ldr r0, [r5]
-	strh r0, [r2, 0x32]
-	ldr r0, [r5, 0x4]
-	strh r0, [r2, 0x34]
-	ldr r0, [r5, 0x8]
-	strh r0, [r2, 0x36]
-_080DCAB0:
-	mov r0, sp
-	ldrb r0, [r0]
-_080DCAB4:
-	add sp, 0x4
-	pop {r3}
-	mov r8, r3
-	pop {r4-r7}
-	pop {r1}
-	bx r1
-	.align 2, 0
-_080DCAC0: .4byte gFieldEffectObjectTemplatePointers
-_080DCAC4: .4byte gSprites
-	thumb_func_end ShowDisguiseFieldEffect
-
-	thumb_func_start sub_80DCAC8
-sub_80DCAC8: @ 80DCAC8
-	push {r4,r5,lr}
-	sub sp, 0x4
-	adds r5, r0, 0
-	ldrh r0, [r5, 0x32]
-	lsls r0, 24
-	lsrs r0, 24
-	ldrh r1, [r5, 0x34]
-	lsls r1, 24
-	lsrs r1, 24
-	ldrh r2, [r5, 0x36]
-	lsls r2, 24
-	lsrs r2, 24
-	mov r3, sp
-	bl TryGetObjectEventIdByLocalIdAndMap
-	lsls r0, 24
-	cmp r0, 0
-	beq _080DCAF8
-	ldrh r1, [r5, 0x30]
-	lsls r1, 24
-	lsrs r1, 24
-	adds r0, r5, 0
-	bl FieldEffectStop
-_080DCAF8:
-	ldr r4, _080DCBB0 @ =gObjectEvents
-	mov r0, sp
-	ldrb r1, [r0]
-	lsls r0, r1, 3
-	adds r0, r1
-	lsls r0, 2
-	adds r0, r4
-	ldrb r0, [r0, 0x5]
-	bl GetObjectEventGraphicsInfo
-	mov r1, sp
-	ldrb r2, [r1]
-	lsls r1, r2, 3
-	adds r1, r2
-	lsls r1, 2
-	adds r1, r4
-	ldrb r1, [r1, 0x4]
-	lsls r2, r1, 4
-	adds r2, r1
-	lsls r2, 2
-	ldr r1, _080DCBB4 @ =gSprites
-	adds r2, r1
-	adds r1, r2, 0
-	adds r1, 0x3E
-	ldrb r1, [r1]
-	movs r3, 0x3E
-	adds r3, r5
-	mov r12, r3
-	movs r3, 0x4
-	ands r3, r1
-	mov r1, r12
-	ldrb r4, [r1]
-	movs r1, 0x5
-	negs r1, r1
-	ands r1, r4
-	orrs r1, r3
-	mov r3, r12
-	strb r1, [r3]
-	ldrh r1, [r2, 0x20]
-	strh r1, [r5, 0x20]
-	ldrh r0, [r0, 0xA]
-	lsls r0, 16
-	asrs r0, 17
-	ldrh r1, [r2, 0x22]
-	adds r0, r1
-	subs r0, 0x10
-	strh r0, [r5, 0x22]
-	adds r2, 0x43
-	ldrb r0, [r2]
-	subs r0, 0x1
-	adds r1, r5, 0
-	adds r1, 0x43
-	strb r0, [r1]
-	ldrh r1, [r5, 0x2E]
-	movs r2, 0x2E
-	ldrsh r0, [r5, r2]
-	cmp r0, 0x1
-	bne _080DCB78
-	adds r0, r1, 0x1
-	strh r0, [r5, 0x2E]
-	adds r0, r5, 0
-	movs r1, 0x1
-	bl StartSpriteAnim
-_080DCB78:
-	movs r3, 0x2E
-	ldrsh r0, [r5, r3]
-	ldrh r2, [r5, 0x2E]
-	cmp r0, 0x2
-	bne _080DCB94
-	adds r0, r5, 0
-	adds r0, 0x3F
-	ldrb r1, [r0]
-	movs r0, 0x10
-	ands r0, r1
-	cmp r0, 0
-	beq _080DCB94
-	movs r0, 0x1
-	strh r0, [r5, 0x3C]
-_080DCB94:
-	lsls r0, r2, 16
-	asrs r0, 16
-	cmp r0, 0x3
-	bne _080DCBA8
-	ldrh r1, [r5, 0x30]
-	lsls r1, 24
-	lsrs r1, 24
-	adds r0, r5, 0
-	bl FieldEffectStop
-_080DCBA8:
-	add sp, 0x4
-	pop {r4,r5}
-	pop {r0}
-	bx r0
-	.align 2, 0
-_080DCBB0: .4byte gObjectEvents
-_080DCBB4: .4byte gSprites
-	thumb_func_end sub_80DCAC8
-
-	thumb_func_start sub_80DCBB8
-sub_80DCBB8: @ 80DCBB8
-	push {lr}
-	adds r1, r0, 0
-	adds r0, 0x21
-	ldrb r0, [r0]
-	cmp r0, 0x1
-	bne _080DCBD6
-	ldr r2, _080DCBDC @ =gSprites
-	ldrb r1, [r1, 0x1A]
-	lsls r0, r1, 4
-	adds r0, r1
-	lsls r0, 2
-	adds r0, r2
-	ldrh r1, [r0, 0x2E]
-	adds r1, 0x1
-	strh r1, [r0, 0x2E]
-_080DCBD6:
-	pop {r0}
-	bx r0
-	.align 2, 0
-_080DCBDC: .4byte gSprites
-	thumb_func_end sub_80DCBB8
-
-	thumb_func_start sub_80DCBE0
-sub_80DCBE0: @ 80DCBE0
-	push {lr}
-	adds r2, r0, 0
-	adds r2, 0x21
-	ldrb r1, [r2]
-	cmp r1, 0x2
-	beq _080DCC16
-	cmp r1, 0
-	beq _080DCC16
-	ldrb r1, [r0, 0x1A]
-	lsls r0, r1, 4
-	adds r0, r1
-	lsls r0, 2
-	ldr r1, _080DCC08 @ =gSprites
-	adds r1, r0, r1
-	movs r3, 0x3C
-	ldrsh r0, [r1, r3]
-	cmp r0, 0
-	bne _080DCC0C
-	movs r0, 0
-	b _080DCC18
-	.align 2, 0
-_080DCC08: .4byte gSprites
-_080DCC0C:
-	movs r0, 0x2
-	strb r0, [r2]
-	ldrh r0, [r1, 0x2E]
-	adds r0, 0x1
-	strh r0, [r1, 0x2E]
-_080DCC16:
-	movs r0, 0x1
-_080DCC18:
-	pop {r1}
-	bx r1
-	thumb_func_end sub_80DCBE0
-
-	thumb_func_start FldEff_Sparkle
-FldEff_Sparkle: @ 80DCC1C
-	push {r4,lr}
-	ldr r4, _080DCC84 @ =gFieldEffectArguments
-	ldr r0, [r4]
-	adds r0, 0x7
-	str r0, [r4]
-	ldr r0, [r4, 0x4]
-	adds r0, 0x7
-	str r0, [r4, 0x4]
-	adds r1, r4, 0x4
-	adds r0, r4, 0
-	movs r2, 0x8
-	movs r3, 0x8
-	bl sub_8063BC4
-	ldr r0, _080DCC88 @ =gFieldEffectObjectTemplatePointers
-	adds r0, 0x8C
-	ldr r0, [r0]
-	movs r2, 0
-	ldrsh r1, [r4, r2]
-	movs r3, 0x4
-	ldrsh r2, [r4, r3]
-	movs r3, 0x52
-	bl CreateSpriteAtEnd
-	lsls r0, 24
-	lsrs r2, r0, 24
-	cmp r2, 0x40
-	beq _080DCC7C
-	ldr r0, _080DCC8C @ =gSprites
-	lsls r1, r2, 4
-	adds r1, r2
-	lsls r1, 2
-	adds r1, r0
-	movs r0, 0x3
-	ldrb r2, [r4, 0x8]
-	ands r2, r0
-	lsls r2, 2
-	ldrb r3, [r1, 0x5]
-	movs r0, 0xD
-	negs r0, r0
-	ands r0, r3
-	orrs r0, r2
-	strb r0, [r1, 0x5]
-	adds r1, 0x3E
-	ldrb r0, [r1]
-	movs r2, 0x2
-	orrs r0, r2
-	strb r0, [r1]
-_080DCC7C:
-	movs r0, 0
-	pop {r4}
-	pop {r1}
-	bx r1
-	.align 2, 0
-_080DCC84: .4byte gFieldEffectArguments
-_080DCC88: .4byte gFieldEffectObjectTemplatePointers
-_080DCC8C: .4byte gSprites
-	thumb_func_end FldEff_Sparkle
-
-	thumb_func_start sub_80DCC90
-sub_80DCC90: @ 80DCC90
-	push {lr}
-	adds r2, r0, 0
-	movs r1, 0x2E
-	ldrsh r0, [r2, r1]
-	cmp r0, 0
-	bne _080DCCC4
-	adds r0, r2, 0
-	adds r0, 0x3F
-	ldrb r1, [r0]
-	movs r0, 0x10
-	ands r0, r1
-	cmp r0, 0
-	beq _080DCCBC
-	adds r3, r2, 0
-	adds r3, 0x3E
-	ldrb r0, [r3]
-	movs r1, 0x4
-	orrs r0, r1
-	strb r0, [r3]
-	ldrh r0, [r2, 0x2E]
-	adds r0, 0x1
-	strh r0, [r2, 0x2E]
-_080DCCBC:
-	movs r1, 0x2E
-	ldrsh r0, [r2, r1]
-	cmp r0, 0
-	beq _080DCCDA
-_080DCCC4:
-	ldrh r0, [r2, 0x30]
-	adds r0, 0x1
-	strh r0, [r2, 0x30]
-	lsls r0, 16
-	asrs r0, 16
-	cmp r0, 0x22
-	ble _080DCCDA
-	adds r0, r2, 0
-	movs r1, 0x36
-	bl FieldEffectStop
-_080DCCDA:
-	pop {r0}
-	bx r0
-	thumb_func_end sub_80DCC90
-
-	thumb_func_start sub_80DCCE0
-sub_80DCCE0: @ 80DCCE0
-	push {r4,lr}
-	adds r4, r0, 0
-	adds r0, 0x3F
-	ldrb r1, [r0]
-	movs r0, 0x10
-	ands r0, r1
-	cmp r0, 0
-	beq _080DCCFE
-	ldrh r1, [r4, 0x30]
-	lsls r1, 24
-	lsrs r1, 24
-	adds r0, r4, 0
-	bl FieldEffectStop
-	b _080DCD14
-_080DCCFE:
-	adds r0, r4, 0
-	movs r1, 0
-	bl UpdateObjectEventSpriteVisibility
-	ldrh r0, [r4, 0x2E]
-	lsls r0, 24
-	lsrs r0, 24
-	adds r1, r4, 0
-	movs r2, 0
-	bl SetObjectSubpriorityByZCoord
-_080DCD14:
-	pop {r4}
-	pop {r0}
-	bx r0
-	thumb_func_end sub_80DCCE0
-
-	thumb_func_start sub_80DCD1C
-sub_80DCD1C: @ 80DCD1C
-	push {lr}
-	adds r2, r0, 0
-	adds r0, 0x3F
-	ldrb r1, [r0]
-	movs r0, 0x10
-	ands r0, r1
-	cmp r0, 0
-	beq _080DCD3A
-	ldrh r1, [r2, 0x2E]
-	lsls r1, 24
-	lsrs r1, 24
-	adds r0, r2, 0
-	bl FieldEffectStop
-	b _080DCD42
-_080DCD3A:
-	adds r0, r2, 0
-	movs r1, 0
-	bl UpdateObjectEventSpriteVisibility
-_080DCD42:
-	pop {r0}
-	bx r0
-	thumb_func_end sub_80DCD1C
-
-	thumb_func_start sub_80DCD48
-sub_80DCD48: @ 80DCD48
-	push {r4-r7,lr}
-	adds r6, r0, 0
-	adds r0, r1, 0
-	lsls r0, 24
-	lsrs r0, 24
-	lsls r2, 24
-	lsrs r2, 24
-	adds r1, r6, 0
-	bl SetObjectSubpriorityByZCoord
-	movs r7, 0
-_080DCD5E:
-	lsls r0, r7, 3
-	adds r0, r7
-	lsls r0, 2
-	ldr r1, _080DCDF8 @ =gObjectEvents
-	adds r4, r0, r1
-	ldrb r0, [r4]
-	lsls r0, 31
-	cmp r0, 0
-	beq _080DCE00
-	ldrb r0, [r4, 0x5]
-	bl GetObjectEventGraphicsInfo
-	ldrb r1, [r4, 0x4]
-	lsls r0, r1, 4
-	adds r0, r1
-	lsls r0, 2
-	ldr r1, _080DCDFC @ =gSprites
-	adds r5, r0, r1
-	adds r0, r6, 0
-	adds r0, 0x28
-	movs r2, 0
-	ldrsb r2, [r0, r2]
-	ldrh r0, [r6, 0x20]
-	adds r1, r0, r2
-	subs r0, r2
-	lsls r0, 16
-	lsrs r4, r0, 16
-	lsls r1, 16
-	asrs r1, 16
-	movs r0, 0x20
-	ldrsh r2, [r5, r0]
-	cmp r1, r2
-	bge _080DCE00
-	lsls r0, r4, 16
-	asrs r0, 16
-	cmp r0, r2
-	ble _080DCE00
-	adds r0, r5, 0
-	adds r0, 0x29
-	movs r3, 0
-	ldrsb r3, [r0, r3]
-	ldrh r2, [r5, 0x22]
-	adds r2, r3
-	ldrh r4, [r5, 0x22]
-	adds r0, r6, 0
-	adds r0, 0x29
-	movs r1, 0
-	ldrsb r1, [r0, r1]
-	ldrh r0, [r6, 0x22]
-	subs r0, r1
-	lsls r0, 16
-	asrs r0, 16
-	adds r3, r0, r3
-	lsls r2, 16
-	asrs r2, 16
-	lsls r3, 16
-	asrs r3, 16
-	cmp r2, r3
-	blt _080DCDD8
-	cmp r2, r0
-	bge _080DCE00
-_080DCDD8:
-	lsls r0, r4, 16
-	asrs r0, 16
-	cmp r0, r3
-	ble _080DCE00
-	adds r2, r6, 0
-	adds r2, 0x43
-	adds r0, r5, 0
-	adds r0, 0x43
-	ldrb r1, [r0]
-	ldrb r0, [r2]
-	cmp r0, r1
-	bhi _080DCE00
-	adds r0, r1, 0x2
-	strb r0, [r2]
-	b _080DCE0A
-	.align 2, 0
-_080DCDF8: .4byte gObjectEvents
-_080DCDFC: .4byte gSprites
-_080DCE00:
-	adds r0, r7, 0x1
-	lsls r0, 24
-	lsrs r7, r0, 24
-	cmp r7, 0xF
-	bls _080DCD5E
-_080DCE0A:
-	pop {r4-r7}
-	pop {r0}
-	bx r0
-	thumb_func_end sub_80DCD48
-
-	.align 2, 0 @ Don't pad with nop.
diff --git a/asm/field_player_avatar.s b/asm/field_player_avatar.s
index ccf946752..754294337 100644
--- a/asm/field_player_avatar.s
+++ b/asm/field_player_avatar.s
@@ -3158,7 +3158,7 @@ InitPlayerAvatar: @ 805CA3C
 	movs r1, 0x1
 	orrs r0, r1
 	strb r0, [r4, 0x2]
-	bl sub_80DB0C4
+	bl CreateWarpArrowSprite
 	strb r0, [r4, 0x1B]
 	adds r0, r4, 0
 	mov r1, r9
@@ -3403,7 +3403,7 @@ _0805CC62:
 	movs r1, 0
 	ldrsh r3, [r7, r1]
 	adds r1, r6, 0
-	bl sub_80DB134
+	bl ShowWarpArrowSprite
 	b _0805CCC2
 	.align 2, 0
 _0805CCA4: .4byte gUnknown_835B890
@@ -3419,7 +3419,7 @@ _0805CCA8:
 	cmp r1, 0x3
 	ble _0805CC62
 	ldrb r0, [r5, 0x1B]
-	bl objid_set_invisible
+	bl SetSpriteInvisible
 _0805CCC2:
 	add sp, 0x4
 	pop {r3,r4}
diff --git a/asm/field_weather.s b/asm/field_weather.s
index 2c7ef2128..c5204def2 100644
--- a/asm/field_weather.s
+++ b/asm/field_weather.s
@@ -1906,8 +1906,8 @@ _0807AA84: .4byte gUnknown_2037F34
 _0807AA88: .4byte 0x000006c6
 	thumb_func_end IsWeatherNotFadingIn
 
-	thumb_func_start sub_807AA8C
-sub_807AA8C: @ 807AA8C
+	thumb_func_start UpdateSpritePaletteWithWeather
+UpdateSpritePaletteWithWeather: @ 807AA8C
 	push {r4-r6,lr}
 	lsls r0, 24
 	lsrs r0, 8
@@ -2017,7 +2017,7 @@ _0807AB68:
 	bx r0
 	.align 2, 0
 _0807AB70: .4byte 0x000073fc
-	thumb_func_end sub_807AA8C
+	thumb_func_end UpdateSpritePaletteWithWeather
 
 	thumb_func_start sub_807AB74
 sub_807AB74: @ 807AB74
@@ -2078,7 +2078,7 @@ sub_807ABC0: @ 807ABC0
 	movs r2, 0x20
 	bl LoadPalette
 	ldrb r0, [r4]
-	bl sub_807AA8C
+	bl UpdateSpritePaletteWithWeather
 	pop {r4}
 	pop {r0}
 	bx r0
diff --git a/asm/field_weather_effects.s b/asm/field_weather_effects.s
index 0330bcbaf..24ccbcf94 100644
--- a/asm/field_weather_effects.s
+++ b/asm/field_weather_effects.s
@@ -252,7 +252,7 @@ _0807B456:
 	adds r2, 0x20
 	adds r3, r4, 0
 	adds r3, 0x22
-	bl sub_8063B1C
+	bl SetSpritePosToMapCoords
 	adds r4, 0x3E
 	ldrb r0, [r4]
 	movs r1, 0x2
diff --git a/asm/overworld.s b/asm/overworld.s
index 7572f413a..7fd5470dd 100644
--- a/asm/overworld.s
+++ b/asm/overworld.s
@@ -7273,7 +7273,7 @@ InitLinkPlayerObjectEventPos: @ 8058448
 	adds r2, 0xC
 	adds r3, r4, 0
 	adds r3, 0xE
-	bl sub_8063B1C
+	bl SetSpritePosToMapCoords
 	ldrh r0, [r4, 0xC]
 	adds r0, 0x8
 	strh r0, [r4, 0xC]
diff --git a/data/event_object_movement.s b/data/event_object_movement.s
index 5920835c4..88aa543b9 100644
--- a/data/event_object_movement.s
+++ b/data/event_object_movement.s
@@ -2,7 +2,7 @@
 	.include "constants/constants.inc"
 	.section .rodata
 	.align 2
-gUnknown_835B934:: @ 835B934
+gReflectionEffectPaletteMap:: @ 835B934
 	.byte 0x01, 0x01, 0x06, 0x07, 0x08, 0x09, 0x06, 0x07, 0x08, 0x09, 0x0b, 0x0b, 0x00, 0x00, 0x00, 0x00
 
 gUnknown_835B944:: @ 835B944
@@ -6325,16 +6325,16 @@ gUnknown_83A5374:: @ 83A5374
 	obj_frame_tiles gUnknown_8398128, 0x400
 
 gUnknown_83A537C:: @ 83A537C
-	spr_template 65535, 65535, gObjectEventBaseOam_128x64, gUnknown_83A5358, gUnknown_83A535C, gDummySpriteAffineAnimTable, oamc_shadow
+	spr_template 65535, 65535, gObjectEventBaseOam_128x64, gUnknown_83A5358, gUnknown_83A535C, gDummySpriteAffineAnimTable, UpdateShadowFieldEffect
 
 gUnknown_83A5394:: @ 83A5394
-	spr_template 65535, 65535, gObjectEventBaseOam_Unknown1, gUnknown_83A5358, gUnknown_83A5364, gDummySpriteAffineAnimTable, oamc_shadow
+	spr_template 65535, 65535, gObjectEventBaseOam_Unknown1, gUnknown_83A5358, gUnknown_83A5364, gDummySpriteAffineAnimTable, UpdateShadowFieldEffect
 
 gUnknown_83A53AC:: @ 83A53AC
-	spr_template 65535, 65535, gObjectEventBaseOam_Unknown2, gUnknown_83A5358, gUnknown_83A536C, gDummySpriteAffineAnimTable, oamc_shadow
+	spr_template 65535, 65535, gObjectEventBaseOam_Unknown2, gUnknown_83A5358, gUnknown_83A536C, gDummySpriteAffineAnimTable, UpdateShadowFieldEffect
 
 gUnknown_83A53C4:: @ 83A53C4
-	spr_template 65535, 65535, gObjectEventBaseOam_Unknown3, gUnknown_83A5358, gUnknown_83A5374, gDummySpriteAffineAnimTable, oamc_shadow
+	spr_template 65535, 65535, gObjectEventBaseOam_Unknown3, gUnknown_83A5358, gUnknown_83A5374, gDummySpriteAffineAnimTable, UpdateShadowFieldEffect
 
 gUnknown_83A53DC:: @ 83A53DC
 	overworld_frame gUnknown_839A008, 2, 2, 0
@@ -6355,7 +6355,7 @@ gUnknown_83A541C:: @ 83A541C
 	.4byte gUnknown_83A5404
 
 gUnknown_83A5420:: @ 83A5420
-	spr_template 0xFFFF, 0x1005, gObjectEventBaseOam_16x16, gUnknown_83A541C, gUnknown_83A53DC, gDummySpriteAffineAnimTable, unc_grass_normal
+	spr_template 0xFFFF, 0x1005, gObjectEventBaseOam_16x16, gUnknown_83A541C, gUnknown_83A53DC, gDummySpriteAffineAnimTable, UpdateTallGrassFieldEffect
 
 gUnknown_83A5438:: @ 83A5438
 	overworld_frame gUnknown_83986A8, 2, 2, 0
@@ -6379,7 +6379,7 @@ gUnknown_83A5484:: @ 83A5484
 	.4byte gUnknown_83A5460
 
 gUnknown_83A5488:: @ 83A5488
-	spr_template 0xFFFF, 0x1005, gObjectEventBaseOam_16x16, gUnknown_83A5484, gUnknown_83A5438, gDummySpriteAffineAnimTable, sub_80DCD1C
+	spr_template 0xFFFF, 0x1005, gObjectEventBaseOam_16x16, gUnknown_83A5484, gUnknown_83A5438, gDummySpriteAffineAnimTable, WaitFieldEffectSpriteAnim
 
 gUnknown_83A54A0:: @ 83A54A0
 	overworld_frame gUnknown_8398928, 2, 2, 0
@@ -6400,7 +6400,7 @@ gUnknown_83A54E0:: @ 83A54E0
 	.4byte gUnknown_83A54C8
 
 gUnknown_83A54E4:: @ 83A54E4
-	spr_template 0xFFFF, 0x1005, gObjectEventBaseOam_16x16, gUnknown_83A54E0, gUnknown_83A54A0, gDummySpriteAffineAnimTable, sub_80DC2FC
+	spr_template 0xFFFF, 0x1005, gObjectEventBaseOam_16x16, gUnknown_83A54E0, gUnknown_83A54A0, gDummySpriteAffineAnimTable, UpdateAshFieldEffect
 
 gUnknown_83A54FC:: @ 83A54FC
 	overworld_frame gUnknown_8396B08, 2, 8, 0
@@ -6437,7 +6437,7 @@ gUnknown_83A555C:: @ 83A555C
 	.4byte gUnknown_83A5550
 
 gUnknown_83A556C:: @ 83A556C
-	spr_template 0xFFFF, 0xFFFF, gObjectEventBaseOam_32x32, gUnknown_83A555C, gUnknown_83A54FC, gDummySpriteAffineAnimTable, sub_80DC4F8
+	spr_template 0xFFFF, 0xFFFF, gObjectEventBaseOam_32x32, gUnknown_83A555C, gUnknown_83A54FC, gDummySpriteAffineAnimTable, UpdateSurfBlobFieldEffect
 
 gUnknown_83A5584:: @ 83A5584
 	overworld_frame gUnknown_8398BA8, 2, 2, 0
@@ -6542,7 +6542,7 @@ gUnknown_83A56E0:: @ 83A56E0
 	.4byte gUnknown_83A56D8
 
 gUnknown_83A56F4:: @ 83A56F4
-	spr_template 0xFFFF, 0x1004, gObjectEventBaseOam_16x16, gUnknown_83A56E0, gUnknown_83A56B0, gDummySpriteAffineAnimTable, sub_80DBAFC
+	spr_template 0xFFFF, 0x1004, gObjectEventBaseOam_16x16, gUnknown_83A56E0, gUnknown_83A56B0, gDummySpriteAffineAnimTable, UpdateFootprintsTireTracksFieldEffect
 
 gUnknown_83A570C:: @ 83A570C
 	overworld_frame gUnknown_839A488, 2, 2, 0
@@ -6572,7 +6572,7 @@ gUnknown_83A573C:: @ 83A573C
 	.4byte gUnknown_83A5734
 
 gUnknown_83A5750:: @ 83A5750
-	spr_template 0xFFFF, 0x1004, gObjectEventBaseOam_16x16, gUnknown_83A573C, gUnknown_83A570C, gDummySpriteAffineAnimTable, sub_80DBAFC
+	spr_template 0xFFFF, 0x1004, gObjectEventBaseOam_16x16, gUnknown_83A573C, gUnknown_83A570C, gDummySpriteAffineAnimTable, UpdateFootprintsTireTracksFieldEffect
 
 gUnknown_83A5768:: @ 83A5768
 	overworld_frame gUnknown_839A588, 2, 2, 0
@@ -6624,7 +6624,7 @@ gUnknown_83A57C8:: @ 83A57C8
 	.4byte gUnknown_83A57C0
 
 gUnknown_83A57EC:: @ 83A57EC
-	spr_template 0xFFFF, 0x1004, gObjectEventBaseOam_16x16, gUnknown_83A57C8, gUnknown_83A5768, gDummySpriteAffineAnimTable, sub_80DBAFC
+	spr_template 0xFFFF, 0x1004, gObjectEventBaseOam_16x16, gUnknown_83A57C8, gUnknown_83A5768, gDummySpriteAffineAnimTable, UpdateFootprintsTireTracksFieldEffect
 
 gUnknown_83A5804:: @ 83A5804
 	overworld_frame gUnknown_839AA48, 2, 2, 0
@@ -6670,7 +6670,7 @@ gUnknown_83A5894:: @ 83A5894
 	.4byte gUnknown_83A5870
 
 gUnknown_83A589C:: @ 83A589C
-	spr_template 0xFFFF, 0x1004, gObjectEventBaseOam_Unknown1, gUnknown_83A5894, gUnknown_83A5854, gDummySpriteAffineAnimTable, sub_80DBC2C
+	spr_template 0xFFFF, 0x1004, gObjectEventBaseOam_Unknown1, gUnknown_83A5894, gUnknown_83A5854, gDummySpriteAffineAnimTable, UpdateSplashFieldEffect
 
 gUnknown_83A58B4:: @ 83A58B4
 	overworld_frame gUnknown_839ACC8, 2, 1, 0
@@ -6709,7 +6709,7 @@ gUnknown_83A5938:: @ 83A5938
 	.4byte gUnknown_83A5918
 
 gUnknown_83A593C:: @ 83A593C
-	spr_template 0xFFFF, 0x1005, gObjectEventBaseOam_16x16, gUnknown_83A5938, gUnknown_83A58F8, gDummySpriteAffineAnimTable, unc_grass_tall
+	spr_template 0xFFFF, 0x1005, gObjectEventBaseOam_16x16, gUnknown_83A5938, gUnknown_83A58F8, gDummySpriteAffineAnimTable, UpdateLongGrassFieldEffect
 
 gUnknown_83A5954:: @ 83A5954
 	overworld_frame gUnknown_8399488, 2, 2, 0
@@ -6761,7 +6761,7 @@ gUnknown_83A5A2C:: @ 83A5A2C
 	.4byte gUnknown_83A5A04
 
 gUnknown_83A5A30:: @ 83A5A30
-	spr_template 0xFFFF, 0x1005, gObjectEventBaseOam_16x16, gUnknown_83A5A2C, gUnknown_83A59BC, gDummySpriteAffineAnimTable, sub_80DCD1C
+	spr_template 0xFFFF, 0x1005, gObjectEventBaseOam_16x16, gUnknown_83A5A2C, gUnknown_83A59BC, gDummySpriteAffineAnimTable, WaitFieldEffectSpriteAnim
 
 gUnknown_83A5A48:: @ 83A5A48
 	overworld_frame gUnknown_8399C08, 2, 2, 0
@@ -6782,7 +6782,7 @@ gUnknown_83A5A84:: @ 83A5A84
 	.4byte gUnknown_83A5A68
 
 gUnknown_83A5A88:: @ 83A5A88
-	spr_template 0xFFFF, 0x1005, gObjectEventBaseOam_16x16, gUnknown_83A5A84, gUnknown_83A5A48, gDummySpriteAffineAnimTable, sub_80DCD1C
+	spr_template 0xFFFF, 0x1005, gObjectEventBaseOam_16x16, gUnknown_83A5A84, gUnknown_83A5A48, gDummySpriteAffineAnimTable, WaitFieldEffectSpriteAnim
 
 gUnknown_83A5AA0:: @ 83A5AA0
 	overworld_frame gUnknown_839A788, 2, 2, 0
@@ -6801,7 +6801,7 @@ gUnknown_83A5AD4:: @ 83A5AD4
 	.4byte gUnknown_83A5AC0
 
 gUnknown_83A5AD8:: @ 83A5AD8
-	spr_template 0xFFFF, 0x1004, gObjectEventBaseOam_16x16, gUnknown_83A5AD4, gUnknown_83A5AA0, gDummySpriteAffineAnimTable, sub_80DCD1C
+	spr_template 0xFFFF, 0x1004, gObjectEventBaseOam_16x16, gUnknown_83A5AD4, gUnknown_83A5AA0, gDummySpriteAffineAnimTable, WaitFieldEffectSpriteAnim
 
 gUnknown_83A5AF0:: @ 83A5AF0
 	overworld_frame gUnknown_839A988, 2, 1, 0
@@ -6818,7 +6818,7 @@ gUnknown_83A5B18:: @ 83A5B18
 	.4byte gUnknown_83A5B08
 
 gUnknown_83A5B1C:: @ 83A5B1C
-	spr_template 0xFFFF, 0x1004, gObjectEventBaseOam_Unknown1, gUnknown_83A5B18, gUnknown_83A5AF0, gDummySpriteAffineAnimTable, sub_80DC86C
+	spr_template 0xFFFF, 0x1004, gObjectEventBaseOam_Unknown1, gUnknown_83A5B18, gUnknown_83A5AF0, gDummySpriteAffineAnimTable, UpdateSandPileFieldEffect
 
 gUnknown_83A5B34:: @ 83A5B34
 	overworld_frame gUnknown_839AD88, 2, 2, 0
@@ -6839,7 +6839,7 @@ gUnknown_83A5B70:: @ 83A5B70
 	.4byte gUnknown_83A5B54
 
 gUnknown_83A5B74:: @ 83A5B74
-	spr_template 0xFFFF, 0x1004, gObjectEventBaseOam_16x16, gUnknown_83A5B70, gUnknown_83A5B34, gDummySpriteAffineAnimTable, sub_80DCD1C
+	spr_template 0xFFFF, 0x1004, gObjectEventBaseOam_16x16, gUnknown_83A5B70, gUnknown_83A5B34, gDummySpriteAffineAnimTable, WaitFieldEffectSpriteAnim
 
 gUnknown_83A5B8C:: @ 83A5B8C
 	obj_rot_scal_anim_frame -256, 256, 128, 0
@@ -6900,7 +6900,7 @@ gUnknown_83A5CAC:: @ 83A5CAC
 	.4byte gUnknown_83A5C8C
 
 gUnknown_83A5CB4:: @ 83A5CB4
-	spr_template 0xFFFF, 0xFFFF, gObjectEventBaseOam_16x32, gUnknown_83A5CAC, gUnknown_83A5C4C, gDummySpriteAffineAnimTable, sub_80DCAC8
+	spr_template 0xFFFF, 0xFFFF, gObjectEventBaseOam_16x32, gUnknown_83A5CAC, gUnknown_83A5C4C, gDummySpriteAffineAnimTable, UpdateDisguiseFieldEffect
 
 gUnknown_83A5CCC:: @ 83A5CCC
 	overworld_frame gUnknown_839B708, 2, 4, 0
@@ -6930,7 +6930,7 @@ gUnknown_83A5D2C:: @ 83A5D2C
 	.4byte gUnknown_83A5D0C
 
 gUnknown_83A5D34:: @ 83A5D34
-	spr_template 0xFFFF, 0xFFFF, gObjectEventBaseOam_16x32, gUnknown_83A5D2C, gUnknown_83A5CCC, gDummySpriteAffineAnimTable, sub_80DCAC8
+	spr_template 0xFFFF, 0xFFFF, gObjectEventBaseOam_16x32, gUnknown_83A5D2C, gUnknown_83A5CCC, gDummySpriteAffineAnimTable, UpdateDisguiseFieldEffect
 
 gUnknown_83A5D4C:: @ 83A5D4C
 	overworld_frame gUnknown_839BE08, 2, 4, 0
@@ -6942,7 +6942,7 @@ gUnknown_83A5D4C:: @ 83A5D4C
 	overworld_frame gUnknown_839BE08, 2, 4, 6
 
 gUnknown_83A5D84:: @ 83A5D84
-	spr_template 0xFFFF, 0xFFFF, gObjectEventBaseOam_16x32, gUnknown_83A5CAC, gUnknown_83A5D4C, gDummySpriteAffineAnimTable, sub_80DCAC8
+	spr_template 0xFFFF, 0xFFFF, gObjectEventBaseOam_16x32, gUnknown_83A5CAC, gUnknown_83A5D4C, gDummySpriteAffineAnimTable, UpdateDisguiseFieldEffect
 
 gUnknown_83A5D9C:: @ 83A5D9C
 	overworld_frame gUnknown_839D3C8, 8, 8, 0
@@ -6994,7 +6994,7 @@ gUnknown_83A5E34:: @ 83A5E34
 	.4byte gUnknown_83A5E28
 
 gUnknown_83A5E38:: @ 83A5E38
-	spr_template 0xFFFF, 0x1005, gObjectEventBaseOam_16x16, gUnknown_83A5E34, gUnknown_83A5E18, gDummySpriteAffineAnimTable, sub_80DB8AC
+	spr_template 0xFFFF, 0x1005, gObjectEventBaseOam_16x16, gUnknown_83A5E34, gUnknown_83A5E18, gDummySpriteAffineAnimTable, UpdateShortGrassFieldEffect
 
 gUnknown_83A5E50:: @ 83A5E50
 	overworld_frame gUnknown_839C508, 2, 2, 0
@@ -7007,7 +7007,7 @@ gUnknown_83A5E60:: @ 83A5E60
 	.4byte gUnknown_83A5E58
 
 gUnknown_83A5E64:: @ 83A5E64
-	spr_template 0xFFFF, 0x1005, gObjectEventBaseOam_16x16, gUnknown_83A5E60, gUnknown_83A5E50, gDummySpriteAffineAnimTable, sub_80DBFF4
+	spr_template 0xFFFF, 0x1005, gObjectEventBaseOam_16x16, gUnknown_83A5E60, gUnknown_83A5E50, gDummySpriteAffineAnimTable, UpdateHotSpringsWaterFieldEffect
 
 gUnknown_83A5E7C:: @ 83A5E7C
 	overworld_frame gUnknown_839C5A8, 2, 2, 0
@@ -7079,7 +7079,7 @@ gUnknown_83A5FA0:: @ 83A5FA0
 	.4byte gUnknown_83A5F7C
 
 gUnknown_83A5FA4:: @ 83A5FA4
-	spr_template 0xFFFF, 0x1004, gObjectEventBaseOam_16x32, gUnknown_83A5FA0, gUnknown_83A5F3C, gDummySpriteAffineAnimTable, sub_80DC99C
+	spr_template 0xFFFF, 0x1004, gObjectEventBaseOam_16x32, gUnknown_83A5FA0, gUnknown_83A5F3C, gDummySpriteAffineAnimTable, UpdateBubblesFieldEffect
 
 gUnknown_83A5FBC:: @ 83A5FBC
 	overworld_frame gUnknown_839D2A8, 2, 2, 0
@@ -7095,7 +7095,7 @@ gUnknown_83A5FDC:: @ 83A5FDC
 	.4byte gUnknown_83A5FCC
 
 gUnknown_83A5FE0:: @ 83A5FE0
-	spr_template 0xFFFF, 0x100F, gObjectEventBaseOam_16x16, gUnknown_83A5FDC, gUnknown_83A5FBC, gDummySpriteAffineAnimTable, sub_80DCC90
+	spr_template 0xFFFF, 0x100F, gObjectEventBaseOam_16x16, gUnknown_83A5FDC, gUnknown_83A5FBC, gDummySpriteAffineAnimTable, UpdateSparkleFieldEffect
 
 gUnknown_83A5FF8::
 	obj_pal gUnknown_839D3A8, 0x100F
diff --git a/data/field_effect_helpers.s b/data/field_effect_helpers.s
deleted file mode 100644
index 7ad7b168a..000000000
--- a/data/field_effect_helpers.s
+++ /dev/null
@@ -1,34 +0,0 @@
-#include "constants/region_map.h"
-#include "constants/flags.h"
-#include "constants/moves.h"
-	.include "asm/macros.inc"
-	.include "constants/constants.inc"
-	.section .rodata
-	.align 2
-
-gUnknown_83FECCC:: @ 83FECCC
-	.2byte 0x0c, 0x1c, 0x2c
-
-gUnknown_83FECD2:: @ 83FECD2
-	.byte 0, 1, 2, 3
-
-gUnknown_83FECD6:: @ 83FECD6
-	.2byte 0x0004, 0x0004, 0x0004, 0x0010
-
-	.align 2
-gUnknown_83FECE0:: @ 83FECE0
-	.4byte sub_80DBB18
-	.4byte sub_80DBB3C
-
-	.align 2
-gUnknown_83FECE8:: @ 83FECE8
-	.4byte sub_80DC318
-	.4byte sub_80DC348
-	.4byte sub_80DC3A8
-
-gUnknown_83FECF4:: @ 83FECF4
-	.byte 0, 0, 1, 2, 3
-
-	.align 1
-gUnknown_83FECFA:: @ 83FECFA
-	.2byte 0x0007, 0x000f
diff --git a/data/field_effect_scripts.s b/data/field_effect_scripts.s
index 95d63568c..43698653d 100644
--- a/data/field_effect_scripts.s
+++ b/data/field_effect_scripts.s
@@ -86,15 +86,15 @@ gFldEffScript_UseCutOnTree:: @ 81D97D0
 	end 
 
 gFldEffScript_Shadow:: @ 81D97D6
-	callnative oei_shadow
+	callnative FldEff_Shadow
 	end 
 
 gFldEffScript_TallGrass:: @ 81D97DC
-	loadfadedpal_callnative gUnknown_83A5348, oei_grass_normal
+	loadfadedpal_callnative gUnknown_83A5348, FldEff_TallGrass
 	end 
 
 gFldEffScript_Ripple:: @ 81D97E6
-	loadfadedpal_callnative gUnknown_83A5348, oei_ripples
+	loadfadedpal_callnative gUnknown_83A5348, FldEff_Ripple
 	end 
 
 gFldEffScript_FieldMoveShowMon:: @ 81D97F0
@@ -129,7 +129,7 @@ gFldEffScript_SandFootprints:: @ 81D9821
 	end 
 
 gFldEffScript_JumpBigSplash:: @ 81D982B
-	loadfadedpal_callnative gUnknown_83A5340, oei_water_drop_tall
+	loadfadedpal_callnative gUnknown_83A5340, FldEff_JumpBigSplash
 	end 
 
 gFldEffScript_Splash:: @ 81D9835
diff --git a/include/event_object_movement.h b/include/event_object_movement.h
index edc5c8b11..7828d0bcb 100644
--- a/include/event_object_movement.h
+++ b/include/event_object_movement.h
@@ -33,10 +33,10 @@ u8 GetObjectEventIdByXY(s16, s16);
 void ObjectEventSetDirection(struct ObjectEvent *, u8);
 u8 sub_808D4F4(void);
 void RemoveObjectEventByLocalIdAndMap(u8, u8, u8);
-void npc_load_two_palettes__no_record(u16, u8);
-void npc_load_two_palettes__and_record(u16, u8);
+void LoadPlayerObjectReflectionPalette(u16, u8);
+void LoadSpecialObjectReflectionPalette(u16, u8);
 void sub_805F7C4(u8, u8, u8, s16, s16);
-void pal_patch_for_npc(u16, u8);
+void PatchObjectPalette(u16, u8);
 void sub_808E16C(s16, s16);
 void sub_808F28C(u8 localId, u8 mapNum, u8 mapGroup, u8 decorCat);
 void sub_8092FF0(s16, s16, s16 *, s16 *);
@@ -121,6 +121,13 @@ u8 sub_8064194(u8 direction);
 u8 sub_80641C0(u8 direction);
 
 void sub_805F378(s16 x, s16 y);
+void sub_805F724(struct ObjectEvent *, s16 x, s16 y);
+u8 CreateCopySpriteAt(struct Sprite * sprite, s16 x, s16 y, u8 subpriority);
+u16 GetObjectPaletteTag(u8 paletteIndex);
+void SetSpritePosToMapCoords(s16 x, s16 y, s16 *x2, s16 *y2);
+void UpdateObjectEventSpriteVisibility(struct Sprite *sprite, bool8 invisible);
+u8 ZCoordToPriority(u8 z);
+void SetObjectSubpriorityByZCoord(u8 z, struct Sprite * sprite, u8 offset);
 
 // Exported data declarations
 
@@ -131,6 +138,6 @@ extern const struct OamData gObjectEventBaseOam_32x32;
 extern const struct UCoords16 gUnknown_83A64C8[];
 extern const u16 gUnknown_8398648[];
 extern const u16 gUnknown_8398688[];
-void sub_805F724(struct ObjectEvent *, s16 x, s16 y);
+extern const u8 gReflectionEffectPaletteMap[];
 
 #endif // GUARD_EVENT_OBJECT_MOVEMENT_H
diff --git a/include/field_effect_helpers.h b/include/field_effect_helpers.h
index c3e5ae29a..831f83fd5 100644
--- a/include/field_effect_helpers.h
+++ b/include/field_effect_helpers.h
@@ -13,7 +13,7 @@
 
 // Exported ROM declarations
 u8 sub_8154228(void);
-bool8 sub_8155DA0(struct ObjectEvent *);
+bool8 sub_80DCBE0(struct ObjectEvent *);
 void sub_80DC44C(u8, u8);
 void sub_80DC478(u8, u8);
 void StartAshFieldEffect(s16, s16, u16, s16);
diff --git a/include/field_weather.h b/include/field_weather.h
index 7488c8c5a..115cc0dca 100644
--- a/include/field_weather.h
+++ b/include/field_weather.h
@@ -18,7 +18,7 @@ void SetWeatherScreenFadeOut(void);
 void sub_807B070(void);
 u8 GetCurrentWeather(void);
 void FieldWeather_StartFadingOutCreditsMap(u8, u8, u32);
-void sub_807AA8C(u8 palIdx);
+void UpdateSpritePaletteWithWeather(u8 palIdx);
 void ResetPreservedPalettesInWeather(void);
 void PreservePaletteInWeather(u8 palIdx);
 
diff --git a/include/global.fieldmap.h b/include/global.fieldmap.h
index b3f5b1d42..9c380d993 100644
--- a/include/global.fieldmap.h
+++ b/include/global.fieldmap.h
@@ -217,17 +217,17 @@ struct ObjectEvent
     /*0x0C*/        struct Coords16 initialCoords;
     /*0x10*/        struct Coords16 currentCoords;
     /*0x14*/        struct Coords16 previousCoords;
-    /*0x18*/        u8 facingDirection:4;  //current direction?
-    /*0x18*/        u8 placeholder18:4;
+    /*0x18*/        u8 facingDirection:4;
+    /*0x18*/        u8 movementDirection:4;
     /*0x19*/        union ObjectEventRange range;
-    /*0x1A*/        u8 mapobj_unk_1A;
+    /*0x1A*/        u8 fieldEffectSpriteId;
     /*0x1B*/        u8 mapobj_unk_1B;
     /*0x1C*/        u8 mapobj_unk_1C;
     /*0x1D*/        u8 trainerRange_berryTreeId;
-    /*0x1E*/        u8 mapobj_unk_1E;
-    /*0x1F*/        u8 mapobj_unk_1F;
+    /*0x1E*/        u8 currentMetatileBehavior;
+    /*0x1F*/        u8 previousMetatileBehavior;
     /*0x20*/        u8 mapobj_unk_20;
-    /*0x21*/        u8 mapobj_unk_21;
+    /*0x21*/        u8 directionSequenceIndex;
     /*0x22*/        u8 animId;
     /*size = 0x24*/
 };
diff --git a/include/global.h b/include/global.h
index b3fdfe231..8a8877143 100644
--- a/include/global.h
+++ b/include/global.h
@@ -612,8 +612,8 @@ struct QuestLogObjectEvent
     /*0x0a*/ s16 x;
     /*0x0c*/ s16 y;
     /*0x0e*/ u8 trainerRange_berryTreeId;
-    /*0x0f*/ u8 mapobj_unk_1F;
-    /*0x10*/ u8 mapobj_unk_21;
+    /*0x0f*/ u8 previousMetatileBehavior;
+    /*0x10*/ u8 directionSequenceIndex;
     /*0x11*/ u8 animId;
 };
 
diff --git a/ld_script.txt b/ld_script.txt
index e16e57209..65666ddc0 100644
--- a/ld_script.txt
+++ b/ld_script.txt
@@ -200,7 +200,7 @@ SECTIONS {
         src/cable_car_util.o(.text);
         src/save.o(.text);
         src/mystery_event_script.o(.text);
-        asm/field_effect_helpers.o(.text);
+        src/field_effect_helpers.o(.text);
         src/battle_anim_sound_tasks.o(.text);
         src/battle_controller_safari.o(.text);
         src/fldeff_sweetscent.o(.text);
@@ -496,7 +496,7 @@ SECTIONS {
         src/battle_controller_link_partner.o(.rodata);
         src/battle_message.o(.rodata);
         src/save.o(.rodata);
-        data/field_effect_helpers.o(.rodata);
+        src/field_effect_helpers.o(.rodata);
         src/battle_controller_safari.o(.rodata);
         src/battle_anim_effects_3.o(.rodata);
         src/learn_move.o(.rodata);
diff --git a/src/field_effect.c b/src/field_effect.c
index 9b2974f1f..c7dd8b4e4 100644
--- a/src/field_effect.c
+++ b/src/field_effect.c
@@ -446,7 +446,7 @@ static void FieldEffectScript_LoadFadedPal(const u8 **script)
     LoadSpritePalette(spritePalette);
     if (idx == 0xFF)
         sub_8083598(IndexOfSpritePaletteTag(spritePalette->tag));
-    sub_807AA8C(IndexOfSpritePaletteTag(spritePalette->tag));
+    UpdateSpritePaletteWithWeather(IndexOfSpritePaletteTag(spritePalette->tag));
     *script += sizeof(u32);
 }
 
@@ -1604,7 +1604,7 @@ static bool8 waterfall_4_wait_player_move_probably(struct Task * task, struct Ob
 {
     if (!ObjectEventClearHeldMovementIfFinished(playerObj))
         return FALSE;
-    if (MetatileBehavior_IsWaterfall(playerObj->mapobj_unk_1E))
+    if (MetatileBehavior_IsWaterfall(playerObj->currentMetatileBehavior))
     {
         task->data[0] = 3;
         return TRUE;
@@ -1664,7 +1664,7 @@ static bool8 dive_3_unknown(struct Task * task)
     PlayerGetDestCoords(&pos.x, &pos.y);
     if (!FieldEffectActiveListContains(FLDEFF_FIELD_MOVE_SHOW_MON))
     {
-        dive_warp(&pos, gObjectEvents[gPlayerAvatar.objectEventId].mapobj_unk_1E);
+        dive_warp(&pos, gObjectEvents[gPlayerAvatar.objectEventId].currentMetatileBehavior);
         DestroyTask(FindTaskIdByFunc(Task_Dive));
         FieldEffectActiveListRemove(FLDEFF_USE_DIVE);
     }
@@ -2904,7 +2904,7 @@ static void UseSurfEffect_1(struct Task * task)
     gPlayerAvatar.preventStep = TRUE;
     SetPlayerAvatarStateMask(8);
     PlayerGetDestCoords(&task->data[1], &task->data[2]);
-    MoveCoords(gObjectEvents[gPlayerAvatar.objectEventId].placeholder18, &task->data[1], &task->data[2]);
+    MoveCoords(gObjectEvents[gPlayerAvatar.objectEventId].movementDirection, &task->data[1], &task->data[2]);
     task->data[0]++;
 }
 
@@ -2940,11 +2940,11 @@ static void UseSurfEffect_4(struct Task * task)
         objectEvent = &gObjectEvents[gPlayerAvatar.objectEventId];
         ObjectEventSetGraphicsId(objectEvent, GetPlayerAvatarGraphicsIdByStateId(2));
         ObjectEventClearHeldMovementIfFinished(objectEvent);
-        ObjectEventSetHeldMovement(objectEvent, sub_80641C0(objectEvent->placeholder18));
+        ObjectEventSetHeldMovement(objectEvent, sub_80641C0(objectEvent->movementDirection));
         gFieldEffectArguments[0] = task->data[1];
         gFieldEffectArguments[1] = task->data[2];
         gFieldEffectArguments[2] = gPlayerAvatar.objectEventId;
-        objectEvent->mapobj_unk_1A = FieldEffectStart(FLDEFF_SURF_BLOB);
+        objectEvent->fieldEffectSpriteId = FieldEffectStart(FLDEFF_SURF_BLOB);
         task->data[0]++;
     }
 }
@@ -2957,8 +2957,8 @@ static void UseSurfEffect_5(struct Task * task)
     {
         gPlayerAvatar.preventStep = FALSE;
         gPlayerAvatar.flags &= 0xdf;
-        ObjectEventSetHeldMovement(objectEvent, GetFaceDirectionMovementAction(objectEvent->placeholder18));
-        sub_80DC44C(objectEvent->mapobj_unk_1A, 1);
+        ObjectEventSetHeldMovement(objectEvent, GetFaceDirectionMovementAction(objectEvent->movementDirection));
+        sub_80DC44C(objectEvent->fieldEffectSpriteId, 1);
         UnfreezeObjectEvents();
         ScriptContext2_Disable();
         FieldEffectActiveListRemove(FLDEFF_USE_SURF);
@@ -3151,8 +3151,8 @@ static void UseFlyEffect_3(struct Task * task)
         struct ObjectEvent * objectEvent = &gObjectEvents[gPlayerAvatar.objectEventId];
         if (task->data[15] & 0x08)
         {
-            sub_80DC44C(objectEvent->mapobj_unk_1A, 2);
-            sub_80DC478(objectEvent->mapobj_unk_1A, 0);
+            sub_80DC44C(objectEvent->fieldEffectSpriteId, 2);
+            sub_80DC478(objectEvent->fieldEffectSpriteId, 0);
         }
         task->data[1] = sub_8087168();
         task->data[0]++;
@@ -3435,7 +3435,7 @@ static void FlyInEffect_1(struct Task * task)
         SetPlayerAvatarStateMask(0x01);
         if (task->data[15] & 0x08)
         {
-            sub_80DC44C(objectEvent->mapobj_unk_1A, 0);
+            sub_80DC44C(objectEvent->fieldEffectSpriteId, 0);
         }
         ObjectEventSetGraphicsId(objectEvent, GetPlayerAvatarGraphicsIdByStateId(2));
         CameraObjectReset2();
@@ -3549,7 +3549,7 @@ static void FlyInEffect_7(struct Task * task)
         if (task->data[15] & 0x08)
         {
             state = 2;
-            sub_80DC44C(objectEvent->mapobj_unk_1A, 1);
+            sub_80DC44C(objectEvent->fieldEffectSpriteId, 1);
         }
         ObjectEventSetGraphicsId(objectEvent, GetPlayerAvatarGraphicsIdByStateId(state));
         ObjectEventTurn(objectEvent, DIR_SOUTH);
diff --git a/src/field_effect_helpers.c b/src/field_effect_helpers.c
new file mode 100644
index 000000000..c32ea929c
--- /dev/null
+++ b/src/field_effect_helpers.c
@@ -0,0 +1,1411 @@
+#include "global.h"
+#include "event_object_movement.h"
+#include "field_camera.h"
+#include "field_effect.h"
+#include "field_weather.h"
+#include "fieldmap.h"
+#include "metatile_behavior.h"
+#include "sound.h"
+#include "sprite.h"
+#include "constants/field_effects.h"
+#include "constants/songs.h"
+
+#define OBJ_EVENT_PAL_TAG_NONE 0x11FF // duplicate of define in event_object_movement.c
+
+static void UpdateObjectReflectionSprite(struct Sprite * sprite);
+static void LoadObjectReflectionPalette(struct ObjectEvent * objectEvent, struct Sprite * sprite);
+static void LoadObjectHighBridgeReflectionPalette(struct ObjectEvent * objectEvent, u8 paletteNum);
+static void LoadObjectRegularReflectionPalette(struct ObjectEvent * objectEvent, u8 paletteNum);
+static void sub_80DCD48(struct Sprite * sprite, u8 z, u8 offset);
+static void FadeFootprintsTireTracks_Step0(struct Sprite * sprite);
+static void FadeFootprintsTireTracks_Step1(struct Sprite * sprite);
+static void UpdateFeetInFlowingWaterFieldEffect(struct Sprite * sprite);
+static void UpdateAshFieldEffect_Step0(struct Sprite * sprite);
+static void UpdateAshFieldEffect_Step1(struct Sprite * sprite);
+static void UpdateAshFieldEffect_Step2(struct Sprite * sprite);
+static void SynchroniseSurfAnim(struct ObjectEvent * objectEvent, struct Sprite * sprite);
+static void sub_80DC588(struct ObjectEvent * objectEvent, struct Sprite * sprite);
+static void CreateBobbingEffect(struct ObjectEvent * objectEvent, struct Sprite * linkedSprite, struct Sprite * sprite);
+static void sub_80DC700(struct Sprite * sprite);
+static u32 ShowDisguiseFieldEffect(u8 fldEff, u8 templateIdx, u8 paletteNum);
+
+void SetUpReflection(struct ObjectEvent * objectEvent, struct Sprite * sprite, bool8 stillReflection)
+{
+    struct Sprite * reflectionSprite;
+
+    reflectionSprite = &gSprites[CreateCopySpriteAt(sprite, sprite->pos1.x, sprite->pos1.y, 0x98)];
+    reflectionSprite->callback = UpdateObjectReflectionSprite;
+    reflectionSprite->oam.priority = 3;
+    reflectionSprite->oam.paletteNum = gReflectionEffectPaletteMap[reflectionSprite->oam.paletteNum];
+    reflectionSprite->usingSheet = TRUE;
+    reflectionSprite->anims = gDummySpriteAnimTable;
+    StartSpriteAnim(reflectionSprite, 0);
+    reflectionSprite->affineAnims = gDummySpriteAffineAnimTable;
+    reflectionSprite->affineAnimBeginning = TRUE;
+    reflectionSprite->subspriteMode = SUBSPRITES_OFF;
+    reflectionSprite->data[0] = sprite->data[0];
+    reflectionSprite->data[1] = objectEvent->localId;
+    reflectionSprite->data[7] = stillReflection;
+    LoadObjectReflectionPalette(objectEvent, reflectionSprite);
+
+    if (!stillReflection)
+        reflectionSprite->oam.affineMode = ST_OAM_AFFINE_NORMAL;
+}
+
+static s16 GetReflectionVerticalOffset(struct ObjectEvent * objectEvent)
+{
+    return GetObjectEventGraphicsInfo(objectEvent->graphicsId)->height - 2;
+}
+
+static void LoadObjectReflectionPalette(struct ObjectEvent * objectEvent, struct Sprite * sprite)
+{
+    u8 bridgeType;
+    u16 bridgeReflectionVerticalOffsets[] = { 12, 28, 44 };
+    sprite->data[2] = 0;
+    if (!GetObjectEventGraphicsInfo(objectEvent->graphicsId)->disableReflectionPaletteLoad && ((bridgeType = MetatileBehavior_GetBridgeType(objectEvent->previousMetatileBehavior)) || (bridgeType = MetatileBehavior_GetBridgeType(objectEvent->currentMetatileBehavior))))
+    {
+        sprite->data[2] = bridgeReflectionVerticalOffsets[bridgeType - 1];
+        LoadObjectHighBridgeReflectionPalette(objectEvent, sprite->oam.paletteNum);
+    }
+    else
+    {
+        LoadObjectRegularReflectionPalette(objectEvent, sprite->oam.paletteNum);
+    }
+}
+
+static void LoadObjectRegularReflectionPalette(struct ObjectEvent * objectEvent, u8 paletteIndex)
+{
+    const struct ObjectEventGraphicsInfo * graphicsInfo;
+
+    graphicsInfo = GetObjectEventGraphicsInfo(objectEvent->graphicsId);
+    if (graphicsInfo->paletteTag2 != OBJ_EVENT_PAL_TAG_NONE)
+    {
+        if (graphicsInfo->paletteSlot == 0)
+        {
+            LoadPlayerObjectReflectionPalette(graphicsInfo->paletteTag1, paletteIndex);
+        }
+        else if (graphicsInfo->paletteSlot == 10)
+        {
+            LoadSpecialObjectReflectionPalette(graphicsInfo->paletteTag1, paletteIndex);
+        }
+        else
+        {
+            PatchObjectPalette(GetObjectPaletteTag(paletteIndex), paletteIndex);
+        }
+        UpdateSpritePaletteWithWeather(paletteIndex);
+    }
+}
+
+// When walking on a bridge high above water (Route 120), the reflection is a solid dark blue color.
+// This is so the sprite blends in with the dark water metatile underneath the bridge.
+static void LoadObjectHighBridgeReflectionPalette(struct ObjectEvent * objectEvent, u8 paletteNum)
+{
+    const struct ObjectEventGraphicsInfo * graphicsInfo;
+
+    graphicsInfo = GetObjectEventGraphicsInfo(objectEvent->graphicsId);
+    if (graphicsInfo->paletteTag2 != OBJ_EVENT_PAL_TAG_NONE)
+    {
+        PatchObjectPalette(graphicsInfo->paletteTag2, paletteNum);
+        UpdateSpritePaletteWithWeather(paletteNum);
+    }
+}
+
+static void UpdateObjectReflectionSprite(struct Sprite * reflectionSprite)
+{
+    struct ObjectEvent * objectEvent;
+    struct Sprite * mainSprite;
+
+    objectEvent = &gObjectEvents[reflectionSprite->data[0]];
+    mainSprite = &gSprites[objectEvent->spriteId];
+    if (!objectEvent->active || !objectEvent->hasReflection || objectEvent->localId != reflectionSprite->data[1])
+    {
+        reflectionSprite->inUse = FALSE;
+    }
+    else
+    {
+        reflectionSprite->oam.paletteNum = gReflectionEffectPaletteMap[mainSprite->oam.paletteNum];
+        reflectionSprite->oam.shape = mainSprite->oam.shape;
+        reflectionSprite->oam.size = mainSprite->oam.size;
+        reflectionSprite->oam.matrixNum = mainSprite->oam.matrixNum | ST_OAM_VFLIP;
+        reflectionSprite->oam.tileNum = mainSprite->oam.tileNum;
+        reflectionSprite->subspriteTables = mainSprite->subspriteTables;
+        reflectionSprite->subspriteTableNum = mainSprite->subspriteTableNum;
+        reflectionSprite->invisible = mainSprite->invisible;
+        reflectionSprite->pos1.x = mainSprite->pos1.x;
+        // reflectionSprite->data[2] holds an additional vertical offset, used by the high bridges on Route 120
+        reflectionSprite->pos1.y = mainSprite->pos1.y + GetReflectionVerticalOffset(objectEvent) + reflectionSprite->data[2];
+        reflectionSprite->centerToCornerVecX = mainSprite->centerToCornerVecX;
+        reflectionSprite->centerToCornerVecY = mainSprite->centerToCornerVecY;
+        reflectionSprite->pos2.x = mainSprite->pos2.x;
+        reflectionSprite->pos2.y = -mainSprite->pos2.y;
+        reflectionSprite->coordOffsetEnabled = mainSprite->coordOffsetEnabled;
+
+/*
+        if (objectEvent->hideReflection == TRUE)
+            reflectionSprite->invisible = TRUE;
+*/
+
+        // Check if the reflection is not still.
+        if (reflectionSprite->data[7] == FALSE)
+        {
+            // Sets the reflection sprite's rot/scale matrix to the appropriate
+            // matrix based on whether or not the main sprite is horizontally flipped.
+            // If the sprite is facing to the east, then it is flipped, and its matrixNum is 8.
+            reflectionSprite->oam.matrixNum = 0;
+            if (mainSprite->oam.matrixNum & ST_OAM_HFLIP)
+                reflectionSprite->oam.matrixNum = 1;
+        }
+    }
+}
+
+extern const struct SpriteTemplate * const gFieldEffectObjectTemplatePointers[];
+
+u8 CreateWarpArrowSprite(void)
+{
+    u8 spriteId;
+    struct Sprite * sprite;
+
+    spriteId = CreateSpriteAtEnd(gFieldEffectObjectTemplatePointers[8], 0, 0, 0x52);
+    if (spriteId != MAX_SPRITES)
+    {
+        sprite = &gSprites[spriteId];
+        sprite->oam.priority = 1;
+        sprite->coordOffsetEnabled = TRUE;
+        sprite->invisible = TRUE;
+    }
+    return spriteId;
+}
+
+void SetSpriteInvisible(u8 spriteId)
+{
+    gSprites[spriteId].invisible = TRUE;
+}
+
+void ShowWarpArrowSprite(u8 spriteId, u8 direction, s16 x, s16 y)
+{
+    s16 x2;
+    s16 y2;
+    struct Sprite * sprite;
+
+    sprite = &gSprites[spriteId];
+    if (sprite->invisible || sprite->data[0] != x || sprite->data[1] != y)
+    {
+        SetSpritePosToMapCoords(x, y, &x2, &y2);
+        sprite = &gSprites[spriteId];
+        sprite->pos1.x = x2 + 8;
+        sprite->pos1.y = y2 + 8;
+        sprite->invisible = FALSE;
+        sprite->data[0] = x;
+        sprite->data[1] = y;
+        StartSpriteAnim(sprite, direction - 1);
+    }
+}
+
+const u8 gShadowEffectTemplateIds[] = {
+    0,
+    1,
+    2,
+    3
+};
+
+const u16 gShadowVerticalOffsets[] = {
+    4,
+    4,
+    4,
+    16
+};
+
+u32 FldEff_Shadow(void)
+{
+    u8 objectEventId;
+    const struct ObjectEventGraphicsInfo * graphicsInfo;
+    u8 spriteId;
+
+    objectEventId = GetObjectEventIdByLocalIdAndMap(gFieldEffectArguments[0], gFieldEffectArguments[1], gFieldEffectArguments[2]);
+    graphicsInfo = GetObjectEventGraphicsInfo(gObjectEvents[objectEventId].graphicsId);
+    spriteId = CreateSpriteAtEnd(gFieldEffectObjectTemplatePointers[gShadowEffectTemplateIds[graphicsInfo->shadowSize]], 0, 0, 0x94);
+    if (spriteId != MAX_SPRITES)
+    {
+        gSprites[spriteId].coordOffsetEnabled = TRUE;
+        gSprites[spriteId].data[0] = gFieldEffectArguments[0];
+        gSprites[spriteId].data[1] = gFieldEffectArguments[1];
+        gSprites[spriteId].data[2] = gFieldEffectArguments[2];
+        gSprites[spriteId].data[3] = (graphicsInfo->height >> 1) - gShadowVerticalOffsets[graphicsInfo->shadowSize];
+    }
+    return 0;
+}
+
+void UpdateShadowFieldEffect(struct Sprite * sprite)
+{
+    u8 objectEventId;
+    struct ObjectEvent * objectEvent;
+    struct Sprite * linkedSprite;
+
+    if (TryGetObjectEventIdByLocalIdAndMap(sprite->data[0], sprite->data[1], sprite->data[2], &objectEventId))
+    {
+        FieldEffectStop(sprite, FLDEFF_SHADOW);
+    }
+    else
+    {
+        objectEvent = &gObjectEvents[objectEventId];
+        linkedSprite = &gSprites[objectEvent->spriteId];
+        sprite->oam.priority = linkedSprite->oam.priority;
+        sprite->pos1.x = linkedSprite->pos1.x;
+        sprite->pos1.y = linkedSprite->pos1.y + sprite->data[3];
+        if (!objectEvent->active || !objectEvent->hasShadow
+         || MetatileBehavior_IsTallGrass(objectEvent->currentMetatileBehavior)
+         || MetatileBehavior_IsSurfable(objectEvent->currentMetatileBehavior)
+         || MetatileBehavior_IsSurfable(objectEvent->previousMetatileBehavior)
+         || MetatileBehavior_IsReflective(objectEvent->currentMetatileBehavior)
+         || MetatileBehavior_IsReflective(objectEvent->previousMetatileBehavior))
+        {
+            FieldEffectStop(sprite, FLDEFF_SHADOW);
+        }
+    }
+}
+
+u32 FldEff_TallGrass(void)
+{
+    s16 x;
+    s16 y;
+    u8 spriteId;
+    struct Sprite * sprite;
+
+    x = gFieldEffectArguments[0];
+    y = gFieldEffectArguments[1];
+    sub_8063BC4(&x, &y, 8, 8);
+    spriteId = CreateSpriteAtEnd(gFieldEffectObjectTemplatePointers[4], x, y, 0);
+    if (spriteId != MAX_SPRITES)
+    {
+        sprite = &gSprites[spriteId];
+        sprite->coordOffsetEnabled = TRUE;
+        sprite->oam.priority = gFieldEffectArguments[3];
+        sprite->data[0] = gFieldEffectArguments[2];
+        sprite->data[1] = gFieldEffectArguments[0];
+        sprite->data[2] = gFieldEffectArguments[1];
+        sprite->data[3] = gFieldEffectArguments[4];
+        sprite->data[4] = gFieldEffectArguments[5];
+        sprite->data[5] = gFieldEffectArguments[6];
+        if (gFieldEffectArguments[7])
+        {
+            SeekSpriteAnim(sprite, 4);
+        }
+    }
+    return 0;
+}
+
+void UpdateTallGrassFieldEffect(struct Sprite * sprite)
+{
+    u8 mapNum;
+    u8 mapGroup;
+    u8 metatileBehavior;
+    u8 localId;
+    u8 objectEventId;
+    struct ObjectEvent * objectEvent;
+
+    mapNum = sprite->data[5] >> 8;
+    mapGroup = sprite->data[5];
+    if (gCamera.active && (gSaveBlock1Ptr->location.mapNum != mapNum || gSaveBlock1Ptr->location.mapGroup != mapGroup))
+    {
+        sprite->data[1] -= gCamera.x;
+        sprite->data[2] -= gCamera.y;
+        sprite->data[5] = ((u8)gSaveBlock1Ptr->location.mapNum << 8) | (u8)gSaveBlock1Ptr->location.mapGroup;
+    }
+    localId = sprite->data[3] >> 8;
+    mapNum = sprite->data[3];
+    mapGroup = sprite->data[4];
+    metatileBehavior = MapGridGetMetatileBehaviorAt(sprite->data[1], sprite->data[2]);
+    if (TryGetObjectEventIdByLocalIdAndMap(localId, mapNum, mapGroup, &objectEventId) || !MetatileBehavior_IsTallGrass_2(metatileBehavior) || (sprite->data[7] && sprite->animEnded))
+    {
+        FieldEffectStop(sprite, FLDEFF_TALL_GRASS);
+    }
+    else
+    {
+        objectEvent = &gObjectEvents[objectEventId];
+        if ((objectEvent->currentCoords.x != sprite->data[1] || objectEvent->currentCoords.y != sprite->data[2]) && (objectEvent->previousCoords.x != sprite->data[1] || objectEvent->previousCoords.y != sprite->data[2]))
+            sprite->data[7] = TRUE;
+
+        // This variable is misused.
+        metatileBehavior = 0;
+        if (sprite->animCmdIndex == 0)
+            metatileBehavior = 4;
+
+        UpdateObjectEventSpriteVisibility(sprite, 0);
+        sub_80DCD48(sprite, sprite->data[0], metatileBehavior);
+    }
+}
+
+u32 FldEff_JumpTallGrass(void)
+{
+    u8 spriteId;
+    struct Sprite * sprite;
+
+    sub_8063BC4((s16 *)&gFieldEffectArguments[0], (s16 *)&gFieldEffectArguments[1], 8, 12);
+    spriteId = CreateSpriteAtEnd(gFieldEffectObjectTemplatePointers[10], gFieldEffectArguments[0], gFieldEffectArguments[1], 0);
+    if (spriteId != MAX_SPRITES)
+    {
+        sprite = &gSprites[spriteId];
+        sprite->coordOffsetEnabled = TRUE;
+        sprite->oam.priority = gFieldEffectArguments[3];
+        sprite->data[0] = gFieldEffectArguments[2];
+        sprite->data[1] = 12;
+    }
+    return 0;
+}
+
+u8 FindTallGrassFieldEffectSpriteId(u8 localId, u8 mapNum, u8 mapGroup, s16 x, s16 y)
+{
+    struct Sprite * sprite;
+    u8 i;
+
+    for (i = 0; i < MAX_SPRITES; i++)
+    {
+        if (gSprites[i].inUse)
+        {
+            sprite = &gSprites[i];
+            if (sprite->callback == UpdateTallGrassFieldEffect && (x == sprite->data[1] && y == sprite->data[2]) && (localId == (sprite->data[3] >> 8) && mapNum == (sprite->data[3] & 0xFF) && mapGroup == sprite->data[4]))
+                return i;
+        }
+    }
+
+    return MAX_SPRITES;
+}
+
+u32 FldEff_LongGrass(void)
+{
+    s16 x;
+    s16 y;
+    u8 spriteId;
+    struct Sprite * sprite;
+
+    x = gFieldEffectArguments[0];
+    y = gFieldEffectArguments[1];
+    sub_8063BC4(&x, &y, 8, 8);
+    spriteId = CreateSpriteAtEnd(gFieldEffectObjectTemplatePointers[15], x, y, 0);
+    if (spriteId != MAX_SPRITES)
+    {
+        sprite = &gSprites[spriteId];
+        sprite->coordOffsetEnabled = TRUE;
+        sprite->oam.priority = ZCoordToPriority(gFieldEffectArguments[2]);
+        sprite->data[0] = gFieldEffectArguments[2];
+        sprite->data[1] = gFieldEffectArguments[0];
+        sprite->data[2] = gFieldEffectArguments[1];
+        sprite->data[3] = gFieldEffectArguments[4];
+        sprite->data[4] = gFieldEffectArguments[5];
+        sprite->data[5] = gFieldEffectArguments[6];
+        if (gFieldEffectArguments[7])
+        {
+            SeekSpriteAnim(sprite, 6);
+        }
+    }
+    return 0;
+}
+
+void UpdateLongGrassFieldEffect(struct Sprite * sprite)
+{
+    u8 mapNum;
+    u8 mapGroup;
+    u8 metatileBehavior;
+    u8 localId;
+    u8 objectEventId;
+    struct ObjectEvent * objectEvent;
+
+    mapNum = sprite->data[5] >> 8;
+    mapGroup = sprite->data[5];
+    if (gCamera.active && (gSaveBlock1Ptr->location.mapNum != mapNum || gSaveBlock1Ptr->location.mapGroup != mapGroup))
+    {
+        sprite->data[1] -= gCamera.x;
+        sprite->data[2] -= gCamera.y;
+        sprite->data[5] = ((u8)gSaveBlock1Ptr->location.mapNum << 8) | (u8)gSaveBlock1Ptr->location.mapGroup;
+    }
+    localId = sprite->data[3] >> 8;
+    mapNum = sprite->data[3];
+    mapGroup = sprite->data[4];
+    metatileBehavior = MapGridGetMetatileBehaviorAt(sprite->data[1], sprite->data[2]);
+    if (TryGetObjectEventIdByLocalIdAndMap(localId, mapNum, mapGroup, &objectEventId) || !MetatileBehavior_IsLongGrass(metatileBehavior) || (sprite->data[7] && sprite->animEnded))
+    {
+        FieldEffectStop(sprite, FLDEFF_LONG_GRASS);
+    }
+    else
+    {
+        objectEvent = &gObjectEvents[objectEventId];
+        if ((objectEvent->currentCoords.x != sprite->data[1] || objectEvent->currentCoords.y != sprite->data[2]) && (objectEvent->previousCoords.x != sprite->data[1] || objectEvent->previousCoords.y != sprite->data[2]))
+        {
+            sprite->data[7] = TRUE;
+        }
+        UpdateObjectEventSpriteVisibility(sprite, 0);
+        sub_80DCD48(sprite, sprite->data[0], 0);
+    }
+}
+
+u32 FldEff_JumpLongGrass(void)
+{
+    u8 spriteId;
+    struct Sprite * sprite;
+
+    sub_8063BC4((s16 *)&gFieldEffectArguments[0], (s16 *)&gFieldEffectArguments[1], 8, 8);
+    spriteId = CreateSpriteAtEnd(gFieldEffectObjectTemplatePointers[16], gFieldEffectArguments[0], gFieldEffectArguments[1], 0);
+    if (spriteId != MAX_SPRITES)
+    {
+        sprite = &gSprites[spriteId];
+        sprite->coordOffsetEnabled = TRUE;
+        sprite->oam.priority = gFieldEffectArguments[3];
+        sprite->data[0] = gFieldEffectArguments[2];
+        sprite->data[1] = 18;
+    }
+    return 0;
+}
+
+u32 FldEff_ShortGrass(void)
+{
+    u8 objectEventId;
+    struct ObjectEvent * objectEvent;
+    u8 spriteId;
+    struct Sprite * sprite;
+
+    objectEventId = GetObjectEventIdByLocalIdAndMap(gFieldEffectArguments[0], gFieldEffectArguments[1], gFieldEffectArguments[2]);
+    objectEvent = &gObjectEvents[objectEventId];
+    spriteId = CreateSpriteAtEnd(gFieldEffectObjectTemplatePointers[30], 0, 0, 0);
+    if (spriteId != MAX_SPRITES)
+    {
+        sprite = &(gSprites[spriteId]);
+        sprite->coordOffsetEnabled = TRUE;
+        sprite->oam.priority = gSprites[objectEvent->spriteId].oam.priority;
+        sprite->data[0] = gFieldEffectArguments[0];
+        sprite->data[1] = gFieldEffectArguments[1];
+        sprite->data[2] = gFieldEffectArguments[2];
+        sprite->data[3] = gSprites[objectEvent->spriteId].pos1.x;
+        sprite->data[4] = gSprites[objectEvent->spriteId].pos1.y;
+    }
+    return 0;
+}
+
+void UpdateShortGrassFieldEffect(struct Sprite * sprite)
+{
+    u8 objectEventId;
+    s16 x;
+    s16 y;
+    const struct ObjectEventGraphicsInfo * graphicsInfo;
+    struct Sprite * linkedSprite;
+
+    if (TryGetObjectEventIdByLocalIdAndMap(sprite->data[0], sprite->data[1], sprite->data[2], &objectEventId) || !gObjectEvents[objectEventId].inShortGrass)
+    {
+        FieldEffectStop(sprite, FLDEFF_SHORT_GRASS);
+    }
+    else
+    {
+        graphicsInfo = GetObjectEventGraphicsInfo(gObjectEvents[objectEventId].graphicsId);
+        linkedSprite = &gSprites[gObjectEvents[objectEventId].spriteId];
+        y = linkedSprite->pos1.y;
+        x = linkedSprite->pos1.x;
+        if (x != sprite->data[3] || y != sprite->data[4])
+        {
+            sprite->data[3] = x;
+            sprite->data[4] = y;
+            if (sprite->animEnded)
+            {
+                StartSpriteAnim(sprite, 0);
+            }
+        }
+        sprite->pos1.x = x;
+        sprite->pos1.y = y;
+        sprite->pos2.y = (graphicsInfo->height >> 1) - 8;
+        sprite->subpriority = linkedSprite->subpriority - 1;
+        sprite->oam.priority = linkedSprite->oam.priority;
+        UpdateObjectEventSpriteVisibility(sprite, linkedSprite->invisible);
+    }
+}
+
+u32 FldEff_SandFootprints(void)
+{
+    u8 spriteId;
+    struct Sprite * sprite;
+
+    sub_8063BC4((s16 *)&gFieldEffectArguments[0], (s16 *)&gFieldEffectArguments[1], 8, 8);
+    spriteId = CreateSpriteAtEnd(gFieldEffectObjectTemplatePointers[11], gFieldEffectArguments[0], gFieldEffectArguments[1], gFieldEffectArguments[2]);
+    if (spriteId != MAX_SPRITES)
+    {
+        sprite = &gSprites[spriteId];
+        sprite->coordOffsetEnabled = TRUE;
+        sprite->oam.priority = gFieldEffectArguments[3];
+        sprite->data[7] = FLDEFF_SAND_FOOTPRINTS;
+        StartSpriteAnim(sprite, gFieldEffectArguments[4]);
+    }
+    return 0;
+}
+
+u32 FldEff_DeepSandFootprints(void)
+{
+    u8 spriteId;
+    struct Sprite * sprite;
+
+    sub_8063BC4((s16 *)&gFieldEffectArguments[0], (s16 *)&gFieldEffectArguments[1], 8, 8);
+    spriteId = CreateSpriteAtEnd(gFieldEffectObjectTemplatePointers[23], gFieldEffectArguments[0], gFieldEffectArguments[1], gFieldEffectArguments[2]);
+    if (spriteId != MAX_SPRITES)
+    {
+        sprite = &gSprites[spriteId];
+        sprite->coordOffsetEnabled = TRUE;
+        sprite->oam.priority = gFieldEffectArguments[3];
+        sprite->data[7] = FLDEFF_DEEP_SAND_FOOTPRINTS;
+        StartSpriteAnim(sprite, gFieldEffectArguments[4]);
+    }
+    return spriteId;
+}
+
+u32 FldEff_BikeTireTracks(void)
+{
+    u8 spriteId;
+    struct Sprite * sprite;
+
+    sub_8063BC4((s16 *)&gFieldEffectArguments[0], (s16 *)&gFieldEffectArguments[1], 8, 8);
+    spriteId = CreateSpriteAtEnd(gFieldEffectObjectTemplatePointers[27], gFieldEffectArguments[0], gFieldEffectArguments[1], gFieldEffectArguments[2]);
+    if (spriteId != MAX_SPRITES)
+    {
+        sprite = &gSprites[spriteId];
+        sprite->coordOffsetEnabled = TRUE;
+        sprite->oam.priority = gFieldEffectArguments[3];
+        sprite->data[7] = FLDEFF_BIKE_TIRE_TRACKS;
+        StartSpriteAnim(sprite, gFieldEffectArguments[4]);
+    }
+    return spriteId;
+}
+
+void (*const gFadeFootprintsTireTracksFuncs[])(struct Sprite * sprite) = {
+    FadeFootprintsTireTracks_Step0,
+    FadeFootprintsTireTracks_Step1
+};
+
+void UpdateFootprintsTireTracksFieldEffect(struct Sprite * sprite)
+{
+    gFadeFootprintsTireTracksFuncs[sprite->data[0]](sprite);
+}
+
+static void FadeFootprintsTireTracks_Step0(struct Sprite * sprite)
+{
+    // Wait 40 frames before the flickering starts.
+    if (++sprite->data[1] > 40)
+        sprite->data[0] = 1;
+
+    UpdateObjectEventSpriteVisibility(sprite, FALSE);
+}
+
+static void FadeFootprintsTireTracks_Step1(struct Sprite * sprite)
+{
+    sprite->invisible ^= 1;
+    sprite->data[1]++;
+    UpdateObjectEventSpriteVisibility(sprite, sprite->invisible);
+    if (sprite->data[1] > 56)
+    {
+        FieldEffectStop(sprite, sprite->data[7]);
+    }
+}
+
+u32 FldEff_Splash(void)
+{
+    u8 objectEventId;
+    struct ObjectEvent * objectEvent;
+    u8 spriteId;
+    struct Sprite * sprite;
+    const struct ObjectEventGraphicsInfo * graphicsInfo;
+    struct Sprite * linkedSprite;
+
+    objectEventId = GetObjectEventIdByLocalIdAndMap(gFieldEffectArguments[0], gFieldEffectArguments[1], gFieldEffectArguments[2]);
+    objectEvent = &gObjectEvents[objectEventId];
+    spriteId = CreateSpriteAtEnd(gFieldEffectObjectTemplatePointers[13], 0, 0, 0);
+    if (spriteId != MAX_SPRITES)
+    {
+        graphicsInfo = GetObjectEventGraphicsInfo(objectEvent->graphicsId);
+        sprite = &gSprites[spriteId];
+        sprite->coordOffsetEnabled = TRUE;
+        linkedSprite = &gSprites[objectEvent->spriteId];
+        sprite->oam.priority = linkedSprite->oam.priority;
+        sprite->data[0] = gFieldEffectArguments[0];
+        sprite->data[1] = gFieldEffectArguments[1];
+        sprite->data[2] = gFieldEffectArguments[2];
+        sprite->pos2.y = (graphicsInfo->height >> 1) - 4;
+        PlaySE(SE_MIZU);
+    }
+    return 0;
+}
+
+void UpdateSplashFieldEffect(struct Sprite * sprite)
+{
+    u8 objectEventId;
+
+    if (sprite->animEnded || TryGetObjectEventIdByLocalIdAndMap(sprite->data[0], sprite->data[1], sprite->data[2], &objectEventId))
+    {
+        FieldEffectStop(sprite, FLDEFF_SPLASH);
+    }
+    else
+    {
+        sprite->pos1.x = gSprites[gObjectEvents[objectEventId].spriteId].pos1.x;
+        sprite->pos1.y = gSprites[gObjectEvents[objectEventId].spriteId].pos1.y;
+        UpdateObjectEventSpriteVisibility(sprite, FALSE);
+    }
+}
+
+u32 FldEff_JumpSmallSplash(void)
+{
+    u8 spriteId;
+    struct Sprite * sprite;
+
+    sub_8063BC4((s16 *)&gFieldEffectArguments[0], (s16 *)&gFieldEffectArguments[1], 8, 12);
+    spriteId = CreateSpriteAtEnd(gFieldEffectObjectTemplatePointers[14], gFieldEffectArguments[0], gFieldEffectArguments[1], 0);
+    if (spriteId != MAX_SPRITES)
+    {
+        sprite = &gSprites[spriteId];
+        sprite->coordOffsetEnabled = TRUE;
+        sprite->oam.priority = gFieldEffectArguments[3];
+        sprite->data[0] = gFieldEffectArguments[2];
+        sprite->data[1] = FLDEFF_JUMP_SMALL_SPLASH;
+    }
+    return 0;
+}
+
+u32 FldEff_JumpBigSplash(void)
+{
+    u8 spriteId;
+    struct Sprite * sprite;
+
+    sub_8063BC4((s16 *)&gFieldEffectArguments[0], (s16 *)&gFieldEffectArguments[1], 8, 8);
+    spriteId = CreateSpriteAtEnd(gFieldEffectObjectTemplatePointers[12], gFieldEffectArguments[0], gFieldEffectArguments[1], 0);
+    if (spriteId != MAX_SPRITES)
+    {
+        sprite = &gSprites[spriteId];
+        sprite->coordOffsetEnabled = TRUE;
+        sprite->oam.priority = gFieldEffectArguments[3];
+        sprite->data[0] = gFieldEffectArguments[2];
+        sprite->data[1] = FLDEFF_JUMP_BIG_SPLASH;
+    }
+    return 0;
+}
+
+u32 FldEff_FeetInFlowingWater(void)
+{
+    u8 objectEventId;
+    struct ObjectEvent * objectEvent;
+    u8 spriteId;
+    struct Sprite * sprite;
+    const struct ObjectEventGraphicsInfo * graphicsInfo;
+
+    objectEventId = GetObjectEventIdByLocalIdAndMap(gFieldEffectArguments[0], gFieldEffectArguments[1], gFieldEffectArguments[2]);
+    objectEvent = &gObjectEvents[objectEventId];
+    spriteId = CreateSpriteAtEnd(gFieldEffectObjectTemplatePointers[13], 0, 0, 0);
+    if (spriteId != MAX_SPRITES)
+    {
+        graphicsInfo = GetObjectEventGraphicsInfo(objectEvent->graphicsId);
+        sprite = &gSprites[spriteId];
+        sprite->callback = UpdateFeetInFlowingWaterFieldEffect;
+        sprite->coordOffsetEnabled = TRUE;
+        sprite->oam.priority = gSprites[objectEvent->spriteId].oam.priority;
+        sprite->data[0] = gFieldEffectArguments[0];
+        sprite->data[1] = gFieldEffectArguments[1];
+        sprite->data[2] = gFieldEffectArguments[2];
+        sprite->data[3] = -1;
+        sprite->data[4] = -1;
+        sprite->pos2.y = (graphicsInfo->height >> 1) - 4;
+        StartSpriteAnim(sprite, 1);
+    }
+    return 0;
+}
+
+static void UpdateFeetInFlowingWaterFieldEffect(struct Sprite * sprite)
+{
+    u8 objectEventId;
+    struct Sprite * linkedSprite;
+    struct ObjectEvent * objectEvent;
+
+    if (TryGetObjectEventIdByLocalIdAndMap(sprite->data[0], sprite->data[1], sprite->data[2], &objectEventId) || !gObjectEvents[objectEventId].inShallowFlowingWater)
+    {
+        FieldEffectStop(sprite, FLDEFF_FEET_IN_FLOWING_WATER);
+    }
+    else
+    {
+        objectEvent = &gObjectEvents[objectEventId];
+        linkedSprite = &gSprites[objectEvent->spriteId];
+        sprite->pos1.x = linkedSprite->pos1.x;
+        sprite->pos1.y = linkedSprite->pos1.y;
+        sprite->subpriority = linkedSprite->subpriority;
+        UpdateObjectEventSpriteVisibility(sprite, FALSE);
+        if (objectEvent->currentCoords.x != sprite->data[3] || objectEvent->currentCoords.y != sprite->data[4])
+        {
+            sprite->data[3] = objectEvent->currentCoords.x;
+            sprite->data[4] = objectEvent->currentCoords.y;
+            if (!sprite->invisible)
+            {
+                PlaySE(SE_MIZU);
+            }
+        }
+    }
+}
+
+u32 FldEff_Ripple(void)
+{
+    u8 spriteId;
+    struct Sprite * sprite;
+
+    spriteId = CreateSpriteAtEnd(gFieldEffectObjectTemplatePointers[5], gFieldEffectArguments[0], gFieldEffectArguments[1], gFieldEffectArguments[2]);
+    if (spriteId != MAX_SPRITES)
+    {
+        sprite = &gSprites[spriteId];
+        sprite->coordOffsetEnabled = TRUE;
+        sprite->oam.priority = gFieldEffectArguments[3];
+        sprite->data[0] = FLDEFF_RIPPLE;
+    }
+    return 0;
+}
+
+u32 FldEff_HotSpringsWater(void)
+{
+    u8 objectEventId;
+    struct ObjectEvent * objectEvent;
+    u8 spriteId;
+    struct Sprite * sprite;
+
+    objectEventId = GetObjectEventIdByLocalIdAndMap(gFieldEffectArguments[0], gFieldEffectArguments[1], gFieldEffectArguments[2]);
+    objectEvent = &gObjectEvents[objectEventId];
+    spriteId = CreateSpriteAtEnd(gFieldEffectObjectTemplatePointers[31], 0, 0, 0);
+    if (spriteId != MAX_SPRITES)
+    {
+        sprite = &gSprites[spriteId];
+        sprite->coordOffsetEnabled = TRUE;
+        sprite->oam.priority = gSprites[objectEvent->spriteId].oam.priority;
+        sprite->data[0] = gFieldEffectArguments[0];
+        sprite->data[1] = gFieldEffectArguments[1];
+        sprite->data[2] = gFieldEffectArguments[2];
+        sprite->data[3] = gSprites[objectEvent->spriteId].pos1.x;
+        sprite->data[4] = gSprites[objectEvent->spriteId].pos1.y;
+    }
+    return 0;
+}
+
+void UpdateHotSpringsWaterFieldEffect(struct Sprite * sprite)
+{
+    u8 objectEventId;
+    const struct ObjectEventGraphicsInfo * graphicsInfo;
+    struct Sprite * linkedSprite;
+
+    if (TryGetObjectEventIdByLocalIdAndMap(sprite->data[0], sprite->data[1], sprite->data[2], &objectEventId) || !gObjectEvents[objectEventId].inHotSprings)
+    {
+        FieldEffectStop(sprite, FLDEFF_HOT_SPRINGS_WATER);
+    }
+    else
+    {
+        graphicsInfo = GetObjectEventGraphicsInfo(gObjectEvents[objectEventId].graphicsId);
+        linkedSprite = &gSprites[gObjectEvents[objectEventId].spriteId];
+        sprite->pos1.x = linkedSprite->pos1.x;
+        sprite->pos1.y = (graphicsInfo->height >> 1) + linkedSprite->pos1.y - 8;
+        sprite->subpriority = linkedSprite->subpriority - 1;
+        UpdateObjectEventSpriteVisibility(sprite, FALSE);
+    }
+}
+
+u32 FldEff_Unknown19(void)
+{
+    u8 spriteId;
+    struct Sprite * sprite;
+
+    sub_8063BC4((s16 *)&gFieldEffectArguments[0], (s16 *)&gFieldEffectArguments[1], 8, 8);
+    spriteId = CreateSpriteAtEnd(gFieldEffectObjectTemplatePointers[17], gFieldEffectArguments[0], gFieldEffectArguments[1], gFieldEffectArguments[2]);
+    if (spriteId != MAX_SPRITES)
+    {
+        sprite = &gSprites[spriteId];
+        sprite->coordOffsetEnabled = TRUE;
+        sprite->oam.priority = gFieldEffectArguments[3];
+        sprite->data[0] = FLDEFF_UNKNOWN_19;
+    }
+    return 0;
+}
+
+u32 FldEff_Unknown20(void)
+{
+    u8 spriteId;
+    struct Sprite * sprite;
+
+    sub_8063BC4((s16 *)&gFieldEffectArguments[0], (s16 *)&gFieldEffectArguments[1], 8, 8);
+    spriteId = CreateSpriteAtEnd(gFieldEffectObjectTemplatePointers[18], gFieldEffectArguments[0], gFieldEffectArguments[1], gFieldEffectArguments[2]);
+    if (spriteId != MAX_SPRITES)
+    {
+        sprite = &gSprites[spriteId];
+        sprite->coordOffsetEnabled = TRUE;
+        sprite->oam.priority = gFieldEffectArguments[3];
+        sprite->data[0] = FLDEFF_UNKNOWN_20;
+    }
+    return 0;
+}
+
+u32 FldEff_Unknown21(void)
+{
+    u8 spriteId;
+    struct Sprite * sprite;
+
+    sub_8063BC4((s16 *)&gFieldEffectArguments[0], (s16 *)&gFieldEffectArguments[1], 8, 8);
+    spriteId = CreateSpriteAtEnd(gFieldEffectObjectTemplatePointers[19], gFieldEffectArguments[0], gFieldEffectArguments[1], gFieldEffectArguments[2]);
+    if (spriteId != MAX_SPRITES)
+    {
+        sprite = &gSprites[spriteId];
+        sprite->coordOffsetEnabled = TRUE;
+        sprite->oam.priority = gFieldEffectArguments[3];
+        sprite->data[0] = FLDEFF_UNKNOWN_21;
+    }
+    return 0;
+}
+
+u32 FldEff_Unknown22(void)
+{
+    u8 spriteId;
+    struct Sprite * sprite;
+
+    sub_8063BC4((s16 *)&gFieldEffectArguments[0], (s16 *)&gFieldEffectArguments[1], 8, 8);
+    spriteId = CreateSpriteAtEnd(gFieldEffectObjectTemplatePointers[20], gFieldEffectArguments[0], gFieldEffectArguments[1], gFieldEffectArguments[2]);
+    if (spriteId != MAX_SPRITES)
+    {
+        sprite = &gSprites[spriteId];
+        sprite->coordOffsetEnabled = TRUE;
+        sprite->oam.priority = gFieldEffectArguments[3];
+        sprite->data[0] = FLDEFF_UNKNOWN_22;
+    }
+    return 0;
+}
+
+void StartAshFieldEffect(s16 x, s16 y, u16 metatileId, s16 d)
+{
+    gFieldEffectArguments[0] = x;
+    gFieldEffectArguments[1] = y;
+    gFieldEffectArguments[2] = 0x52;
+    gFieldEffectArguments[3] = 1;
+    gFieldEffectArguments[4] = metatileId;
+    gFieldEffectArguments[5] = d;
+    FieldEffectStart(FLDEFF_ASH);
+}
+
+u32 FldEff_Ash(void)
+{
+    s16 x;
+    s16 y;
+    u8 spriteId;
+    struct Sprite * sprite;
+
+    x = gFieldEffectArguments[0];
+    y = gFieldEffectArguments[1];
+    sub_8063BC4(&x, &y, 8, 8);
+    spriteId = CreateSpriteAtEnd(gFieldEffectObjectTemplatePointers[6], x, y, gFieldEffectArguments[2]);
+    if (spriteId != MAX_SPRITES)
+    {
+        sprite = &gSprites[spriteId];
+        sprite->coordOffsetEnabled = TRUE;
+        sprite->oam.priority = gFieldEffectArguments[3];
+        sprite->data[1] = gFieldEffectArguments[0];
+        sprite->data[2] = gFieldEffectArguments[1];
+        sprite->data[3] = gFieldEffectArguments[4];
+        sprite->data[4] = gFieldEffectArguments[5];
+    }
+    return 0;
+}
+
+void (*const gAshFieldEffectFuncs[])(struct Sprite * sprite) = {
+    UpdateAshFieldEffect_Step0,
+    UpdateAshFieldEffect_Step1,
+    UpdateAshFieldEffect_Step2
+};
+
+void UpdateAshFieldEffect(struct Sprite * sprite)
+{
+    gAshFieldEffectFuncs[sprite->data[0]](sprite);
+}
+
+static void UpdateAshFieldEffect_Step0(struct Sprite * sprite)
+{
+    sprite->invisible = TRUE;
+    sprite->animPaused = TRUE;
+    if (--sprite->data[4] == 0)
+        sprite->data[0] = 1;
+}
+
+static void UpdateAshFieldEffect_Step1(struct Sprite * sprite)
+{
+    sprite->invisible = FALSE;
+    sprite->animPaused = FALSE;
+    MapGridSetMetatileIdAt(sprite->data[1], sprite->data[2], sprite->data[3]);
+    CurrentMapDrawMetatileAt(sprite->data[1], sprite->data[2]);
+    gObjectEvents[gPlayerAvatar.objectEventId].triggerGroundEffectsOnMove = TRUE;
+    sprite->data[0] = 2;
+}
+
+static void UpdateAshFieldEffect_Step2(struct Sprite * sprite)
+{
+    UpdateObjectEventSpriteVisibility(sprite, FALSE);
+    if (sprite->animEnded)
+        FieldEffectStop(sprite, FLDEFF_ASH);
+}
+
+u32 FldEff_SurfBlob(void)
+{
+    u8 spriteId;
+    struct Sprite * sprite;
+
+    sub_8063BC4((s16 *)&gFieldEffectArguments[0], (s16 *)&gFieldEffectArguments[1], 8, 8);
+    spriteId = CreateSpriteAtEnd(gFieldEffectObjectTemplatePointers[7], gFieldEffectArguments[0], gFieldEffectArguments[1], 0x96);
+    if (spriteId !=MAX_SPRITES)
+    {
+        sprite = &gSprites[spriteId];
+        sprite->coordOffsetEnabled = TRUE;
+        sprite->oam.paletteNum = 0;
+        sprite->data[2] = gFieldEffectArguments[2];
+        sprite->data[3] = 0;
+        sprite->data[6] = -1;
+        sprite->data[7] = -1;
+    }
+    FieldEffectActiveListRemove(FLDEFF_SURF_BLOB);
+    return spriteId;
+}
+
+void sub_80DC44C(u8 spriteId, u8 value)
+{
+    gSprites[spriteId].data[0] = (gSprites[spriteId].data[0] & ~0xF) | (value & 0xF);
+}
+
+void sub_80DC478(u8 spriteId, u8 value)
+{
+    gSprites[spriteId].data[0] = (gSprites[spriteId].data[0] & ~0xF0) | ((value & 0xF) << 4);
+}
+
+void sub_80DC4A4(u8 spriteId, u8 value, s16 data1)
+{
+    gSprites[spriteId].data[0] = (gSprites[spriteId].data[0] & ~0xF00) | ((value & 0xF) << 8);
+    gSprites[spriteId].data[1] = data1;
+}
+
+static u8 sub_80DC4D8(struct Sprite * sprite)
+{
+    return sprite->data[0] & 0xF;
+}
+
+static u8 sub_80DC4E0(struct Sprite * sprite)
+{
+    return (sprite->data[0] & 0xF0) >> 4;
+}
+
+static u8 sub_80DC4EC(struct Sprite * sprite)
+{
+    return (sprite->data[0] & 0xF00) >> 8;
+}
+
+void UpdateSurfBlobFieldEffect(struct Sprite * sprite)
+{
+    struct ObjectEvent * objectEvent;
+    struct Sprite * linkedSprite;
+
+    objectEvent = &gObjectEvents[sprite->data[2]];
+    linkedSprite = &gSprites[objectEvent->spriteId];
+    SynchroniseSurfAnim(objectEvent, sprite);
+    sub_80DC588(objectEvent, sprite);
+    CreateBobbingEffect(objectEvent, linkedSprite, sprite);
+    sprite->oam.priority = linkedSprite->oam.priority;
+}
+
+static void SynchroniseSurfAnim(struct ObjectEvent * objectEvent, struct Sprite * sprite)
+{
+    u8 surfBlobDirectionAnims[] = {
+        [DIR_NONE] = 0,
+        [DIR_SOUTH] = 0,
+        [DIR_NORTH] = 1,
+        [DIR_WEST] = 2,
+        [DIR_EAST] = 3
+    };
+
+    if (sub_80DC4E0(sprite) == 0)
+        StartSpriteAnimIfDifferent(sprite, surfBlobDirectionAnims[objectEvent->movementDirection]);
+}
+
+void sub_80DC588(struct ObjectEvent * objectEvent, struct Sprite * sprite)
+{
+    u8 i;
+    s16 x = objectEvent->currentCoords.x;
+    s16 y = objectEvent->currentCoords.y;
+    s32 spriteY = sprite->pos2.y;
+
+    if (spriteY == 0 && (x != sprite->data[6] || y != sprite->data[7]))
+    {
+        sprite->data[5] = spriteY;
+        sprite->data[6] = x;
+        sprite->data[7] = y;
+        for (i = DIR_SOUTH; i <= DIR_EAST; i++, x = sprite->data[6], y = sprite->data[7])
+        {
+            MoveCoords(i, &x, &y);
+            if (MapGridGetZCoordAt(x, y) == 3)
+            {
+                sprite->data[5]++;
+                break;
+            }
+        }
+    }
+}
+
+static void CreateBobbingEffect(struct ObjectEvent * objectEvent, struct Sprite * linkedSprite, struct Sprite * sprite)
+{
+    u16 unk_83FECFA[] = {7, 15};
+    u8 v0 = sub_80DC4D8(sprite);
+    if (v0 != 0)
+    {
+        if (((u16)(++ sprite->data[4]) & unk_83FECFA[sprite->data[5]]) == 0)
+        {
+            sprite->pos2.y += sprite->data[3];
+        }
+        if ((sprite->data[4] & 0x1F) == 0)
+        {
+            sprite->data[3] = -sprite->data[3];
+        }
+        if (v0 != 2)
+        {
+            if (sub_80DC4EC(sprite) == 0)
+                linkedSprite->pos2.y = sprite->pos2.y;
+            else
+                linkedSprite->pos2.y = sprite->data[1] + sprite->pos2.y;
+            if (sprite->animCmdIndex != 0)
+                linkedSprite->pos2.y++;
+            sprite->pos1.x = linkedSprite->pos1.x;
+            sprite->pos1.y = linkedSprite->pos1.y + 8;
+        }
+    }
+}
+
+u8 sub_80DC6B0(u8 oldSpriteId)
+{
+    u8 spriteId;
+    struct Sprite * sprite;
+
+    spriteId = CreateSpriteAtEnd(&gDummySpriteTemplate, 0, 0, -1);
+    sprite = &gSprites[spriteId];
+    sprite->callback = sub_80DC700;
+    sprite->invisible = TRUE;
+    sprite->data[0] = oldSpriteId;
+    sprite->data[1] = 1;
+    return spriteId;
+}
+
+static void sub_80DC700(struct Sprite * sprite)
+{
+    struct Sprite * oldSprite;
+
+    oldSprite = &gSprites[sprite->data[0]];
+    if (((sprite->data[2]++) & 0x03) == 0)
+    {
+        oldSprite->pos2.y += sprite->data[1];
+    }
+    if ((sprite->data[2] & 0x0F) == 0)
+    {
+        sprite->data[1] = -sprite->data[1];
+    }
+}
+
+u32 FldEff_Dust(void)
+{
+    u8 spriteId;
+    struct Sprite * sprite;
+
+    sub_8063BC4((s16 *)&gFieldEffectArguments[0], (s16 *)&gFieldEffectArguments[1], 8, 12);
+    spriteId = CreateSpriteAtEnd(gFieldEffectObjectTemplatePointers[9], gFieldEffectArguments[0], gFieldEffectArguments[1], 0);
+    if (spriteId != MAX_SPRITES)
+    {
+        sprite = &gSprites[spriteId];
+        sprite->coordOffsetEnabled = TRUE;
+        sprite->oam.priority = gFieldEffectArguments[3];
+        sprite->data[0] = gFieldEffectArguments[2];
+        sprite->data[1] = 10;
+    }
+    return 0;
+}
+
+u32 FldEff_SandPile(void)
+{
+    u8 objectEventId;
+    struct ObjectEvent * objectEvent;
+    u8 spriteId;
+    struct Sprite * sprite;
+    const struct ObjectEventGraphicsInfo * graphicsInfo;
+
+    objectEventId = GetObjectEventIdByLocalIdAndMap(gFieldEffectArguments[0], gFieldEffectArguments[1], gFieldEffectArguments[2]);
+    objectEvent = &gObjectEvents[objectEventId];
+    spriteId = CreateSpriteAtEnd(gFieldEffectObjectTemplatePointers[29], 0, 0, 0);
+    if (spriteId != MAX_SPRITES)
+    {
+        graphicsInfo = GetObjectEventGraphicsInfo(objectEvent->graphicsId);
+        sprite = &gSprites[spriteId];
+        sprite->coordOffsetEnabled = TRUE;
+        sprite->oam.priority = gSprites[objectEvent->spriteId].oam.priority;
+        sprite->data[0] = gFieldEffectArguments[0];
+        sprite->data[1] = gFieldEffectArguments[1];
+        sprite->data[2] = gFieldEffectArguments[2];
+        sprite->data[3] = gSprites[objectEvent->spriteId].pos1.x;
+        sprite->data[4] = gSprites[objectEvent->spriteId].pos1.y;
+        sprite->pos2.y = (graphicsInfo->height >> 1) - 2;
+        SeekSpriteAnim(sprite, 2);
+    }
+    return 0;
+}
+
+void UpdateSandPileFieldEffect(struct Sprite * sprite)
+{
+    u8 objectEventId;
+    s16 x;
+    s16 y;
+
+    if (TryGetObjectEventIdByLocalIdAndMap(sprite->data[0], sprite->data[1], sprite->data[2], &objectEventId) || !gObjectEvents[objectEventId].inSandPile)
+    {
+        FieldEffectStop(sprite, FLDEFF_SAND_PILE);
+    }
+    else
+    {
+        y = gSprites[gObjectEvents[objectEventId].spriteId].pos1.y;
+        x = gSprites[gObjectEvents[objectEventId].spriteId].pos1.x;
+        if (x != sprite->data[3] || y != sprite->data[4])
+        {
+            sprite->data[3] = x;
+            sprite->data[4] = y;
+            if (sprite->animEnded)
+            {
+                StartSpriteAnim(sprite, 0);
+            }
+        }
+        sprite->pos1.x = x;
+        sprite->pos1.y = y;
+        sprite->subpriority = gSprites[gObjectEvents[objectEventId].spriteId].subpriority;
+        UpdateObjectEventSpriteVisibility(sprite, FALSE);
+    }
+}
+
+u32 FldEff_Bubbles(void)
+{
+    u8 spriteId;
+    struct Sprite * sprite;
+
+    sub_8063BC4((s16 *)&gFieldEffectArguments[0], (s16 *)&gFieldEffectArguments[1], 8, 0);
+    spriteId = CreateSpriteAtEnd(gFieldEffectObjectTemplatePointers[34], gFieldEffectArguments[0], gFieldEffectArguments[1], 0x52);
+    if (spriteId != MAX_SPRITES)
+    {
+        sprite = &gSprites[spriteId];
+        sprite->coordOffsetEnabled = TRUE;
+        sprite->oam.priority = 1;
+    }
+    return 0;
+}
+
+void UpdateBubblesFieldEffect(struct Sprite * sprite)
+{
+    sprite->data[0] += 0x80;
+    sprite->data[0] &= 0x100;
+    sprite->pos1.y -= sprite->data[0] >> 8;
+    UpdateObjectEventSpriteVisibility(sprite, FALSE);
+    if (sprite->invisible || sprite->animEnded)
+    {
+        FieldEffectStop(sprite, FLDEFF_BUBBLES);
+    }
+}
+
+u32 FldEff_BerryTreeGrowthSparkle(void)
+{
+    /*u8 spriteId;
+    struct Sprite * sprite;
+
+    sub_8063BC4((s16 *)&gFieldEffectArguments[0], (s16 *)&gFieldEffectArguments[1], 8, 4);
+    spriteId = CreateSpriteAtEnd(gFieldEffectObjectTemplatePointers[22], gFieldEffectArguments[0], gFieldEffectArguments[1], gFieldEffectArguments[2]);
+    if (spriteId != MAX_SPRITES)
+    {
+        sprite = &gSprites[spriteId];
+        sprite->coordOffsetEnabled = TRUE;
+        sprite->oam.priority = gFieldEffectArguments[3];
+        sprite->oam.paletteNum = 5;
+        sprite->data[0] = FLDEFF_BERRY_TREE_GROWTH_SPARKLE;
+    }*/
+    return 0;
+}
+
+u32 ShowTreeDisguiseFieldEffect(void)
+{
+    return ShowDisguiseFieldEffect(FLDEFF_TREE_DISGUISE, 24, 4);
+}
+
+u32 ShowMountainDisguiseFieldEffect(void)
+{
+    return ShowDisguiseFieldEffect(FLDEFF_MOUNTAIN_DISGUISE, 25, 3);
+}
+
+u32 ShowSandDisguiseFieldEffect(void)
+{
+    return ShowDisguiseFieldEffect(FLDEFF_SAND_DISGUISE, 28, 2);
+}
+
+static u32 ShowDisguiseFieldEffect(u8 fldEff, u8 templateIdx, u8 paletteNum)
+{
+    u8 spriteId;
+    struct Sprite * sprite;
+
+    if (TryGetObjectEventIdByLocalIdAndMap(gFieldEffectArguments[0], gFieldEffectArguments[1], gFieldEffectArguments[2], &spriteId))
+    {
+        FieldEffectActiveListRemove(fldEff);
+        return MAX_SPRITES;
+    }
+    spriteId = CreateSpriteAtEnd(gFieldEffectObjectTemplatePointers[templateIdx], 0, 0, 0);
+    if (spriteId != MAX_SPRITES)
+    {
+        sprite = &gSprites[spriteId];
+        sprite->coordOffsetEnabled++;
+        sprite->oam.paletteNum = paletteNum;
+        sprite->data[1] = fldEff;
+        sprite->data[2] = gFieldEffectArguments[0];
+        sprite->data[3] = gFieldEffectArguments[1];
+        sprite->data[4] = gFieldEffectArguments[2];
+    }
+    return spriteId;
+}
+
+void UpdateDisguiseFieldEffect(struct Sprite * sprite)
+{
+    u8 objectEventId;
+    const struct ObjectEventGraphicsInfo * graphicsInfo;
+    struct Sprite * linkedSprite;
+
+    if (TryGetObjectEventIdByLocalIdAndMap(sprite->data[2], sprite->data[3], sprite->data[4], &objectEventId))
+    {
+        FieldEffectStop(sprite, sprite->data[1]);
+    }
+
+    graphicsInfo = GetObjectEventGraphicsInfo(gObjectEvents[objectEventId].graphicsId);
+    linkedSprite = &gSprites[gObjectEvents[objectEventId].spriteId];
+    sprite->invisible = linkedSprite->invisible;
+    sprite->pos1.x = linkedSprite->pos1.x;
+    sprite->pos1.y = (graphicsInfo->height >> 1) + linkedSprite->pos1.y - 16;
+    sprite->subpriority = linkedSprite->subpriority - 1;
+    if (sprite->data[0] == 1)
+    {
+        sprite->data[0]++;
+        StartSpriteAnim(sprite, 1);
+    }
+    if (sprite->data[0] == 2 && sprite->animEnded)
+    {
+        sprite->data[7] = 1;
+    }
+    if (sprite->data[0] == 3)
+    {
+        FieldEffectStop(sprite, sprite->data[1]);
+    }
+}
+
+void sub_80DCBB8(struct ObjectEvent * objectEvent)
+{
+    if (objectEvent->directionSequenceIndex == 1)
+    {
+        gSprites[objectEvent->fieldEffectSpriteId].data[0]++;
+    }
+}
+
+bool8 sub_80DCBE0(struct ObjectEvent * objectEvent)
+{
+    struct Sprite * sprite;
+
+    if (objectEvent->directionSequenceIndex == 2)
+    {
+        return TRUE;
+    }
+    if (objectEvent->directionSequenceIndex == 0)
+    {
+        return TRUE;
+    }
+    sprite = &gSprites[objectEvent->fieldEffectSpriteId];
+    if (sprite->data[7])
+    {
+        objectEvent->directionSequenceIndex = 2;
+        sprite->data[0]++;
+        return TRUE;
+    }
+    return FALSE;
+}
+
+u32 FldEff_Sparkle(void)
+{
+    u8 spriteId;
+
+    gFieldEffectArguments[0] += 7;
+    gFieldEffectArguments[1] += 7;
+    sub_8063BC4((s16 *)&gFieldEffectArguments[0], (s16 *)&gFieldEffectArguments[1], 8, 8);
+    spriteId = CreateSpriteAtEnd(gFieldEffectObjectTemplatePointers[35], gFieldEffectArguments[0], gFieldEffectArguments[1], 0x52);
+    if (spriteId != MAX_SPRITES)
+    {
+        gSprites[spriteId].oam.priority = gFieldEffectArguments[2];
+        gSprites[spriteId].coordOffsetEnabled = TRUE;
+    }
+    return 0;
+}
+
+void UpdateSparkleFieldEffect(struct Sprite * sprite)
+{
+    if (sprite->data[0] == 0)
+    {
+        if (sprite->animEnded)
+        {
+            sprite->invisible = TRUE;
+            sprite->data[0]++;
+        }
+
+        if (sprite->data[0] == 0)
+            return;
+    }
+
+    if (++sprite->data[1] > 34)
+        FieldEffectStop(sprite, FLDEFF_SPARKLE);
+}
+
+void sub_80DCCE0(struct Sprite * sprite)
+{
+    if (sprite->animEnded)
+    {
+        FieldEffectStop(sprite, sprite->data[1]);
+    }
+    else
+    {
+        UpdateObjectEventSpriteVisibility(sprite, FALSE);
+        SetObjectSubpriorityByZCoord(sprite->data[0], sprite, 0);
+    }
+}
+
+void WaitFieldEffectSpriteAnim(struct Sprite * sprite)
+{
+    if (sprite->animEnded)
+        FieldEffectStop(sprite, sprite->data[0]);
+    else
+        UpdateObjectEventSpriteVisibility(sprite, FALSE);
+}
+
+static void sub_80DCD48(struct Sprite * sprite, u8 z, u8 offset)
+{
+    u8 i;
+    s16 var, xhi, lyhi, yhi, ylo;
+    const struct ObjectEventGraphicsInfo * graphicsInfo; // Unused Variable
+    struct Sprite * linkedSprite;
+
+    SetObjectSubpriorityByZCoord(z, sprite, offset);
+    for (i = 0; i < OBJECT_EVENTS_COUNT; i++)
+    {
+        struct ObjectEvent * objectEvent = &gObjectEvents[i];
+        if (objectEvent->active)
+        {
+            graphicsInfo = GetObjectEventGraphicsInfo(objectEvent->graphicsId);
+            linkedSprite = &gSprites[objectEvent->spriteId];
+            xhi = sprite->pos1.x + sprite->centerToCornerVecX;
+            var = sprite->pos1.x - sprite->centerToCornerVecX;
+            if (xhi < linkedSprite->pos1.x && var > linkedSprite->pos1.x)
+            {
+                lyhi = linkedSprite->pos1.y + linkedSprite->centerToCornerVecY;
+                var = linkedSprite->pos1.y;
+                ylo = sprite->pos1.y - sprite->centerToCornerVecY;
+                yhi = ylo + linkedSprite->centerToCornerVecY;
+                if ((lyhi < yhi || lyhi < ylo) && var > yhi && sprite->subpriority <= linkedSprite->subpriority)
+                {
+                    sprite->subpriority = linkedSprite->subpriority + 2;
+                    break;
+                }
+            }
+        }
+    }
+}
diff --git a/src/quest_log_objects.c b/src/quest_log_objects.c
index 5676c20fc..7d8300cd7 100644
--- a/src/quest_log_objects.c
+++ b/src/quest_log_objects.c
@@ -39,8 +39,8 @@ void SetQuestLogObjectEventsData(struct QuestLog * questLog)
         questLog->unk_008[i].x = gObjectEvents[i].currentCoords.x;
         questLog->unk_008[i].y = gObjectEvents[i].currentCoords.y;
         questLog->unk_008[i].trainerRange_berryTreeId = gObjectEvents[i].trainerRange_berryTreeId;
-        questLog->unk_008[i].mapobj_unk_1F = gObjectEvents[i].mapobj_unk_1F;
-        questLog->unk_008[i].mapobj_unk_21 = gObjectEvents[i].mapobj_unk_21;
+        questLog->unk_008[i].previousMetatileBehavior = gObjectEvents[i].previousMetatileBehavior;
+        questLog->unk_008[i].directionSequenceIndex = gObjectEvents[i].directionSequenceIndex;
         questLog->unk_008[i].animId = gObjectEvents[i].animId;
     }
 }
@@ -83,8 +83,8 @@ void sub_815A1F8(const struct QuestLog * questLog, const struct ObjectEventTempl
         gObjectEvents[i].currentCoords.x = questLogObjectEvents[i].x;
         gObjectEvents[i].currentCoords.y = questLogObjectEvents[i].y;
         gObjectEvents[i].trainerRange_berryTreeId = questLogObjectEvents[i].trainerRange_berryTreeId;
-        gObjectEvents[i].mapobj_unk_1F = questLogObjectEvents[i].mapobj_unk_1F;
-        gObjectEvents[i].mapobj_unk_21 = questLogObjectEvents[i].mapobj_unk_21;
+        gObjectEvents[i].previousMetatileBehavior = questLogObjectEvents[i].previousMetatileBehavior;
+        gObjectEvents[i].directionSequenceIndex = questLogObjectEvents[i].directionSequenceIndex;
         gObjectEvents[i].animId = questLogObjectEvents[i].animId;
 
         for (j = 0; j < 0x40; j++)
@@ -98,28 +98,28 @@ void sub_815A1F8(const struct QuestLog * questLog, const struct ObjectEventTempl
             }
         }
 
-        gObjectEvents[i].mapobj_unk_1E = MapGridGetMetatileBehaviorAt(gObjectEvents[i].currentCoords.x, gObjectEvents[i].currentCoords.y);
-        if (gObjectEvents[i].mapobj_unk_1F == MapGridGetMetatileBehaviorAt((s16)(gObjectEvents[i].currentCoords.x), (s16)(gObjectEvents[i].currentCoords.y)))
+        gObjectEvents[i].currentMetatileBehavior = MapGridGetMetatileBehaviorAt(gObjectEvents[i].currentCoords.x, gObjectEvents[i].currentCoords.y);
+        if (gObjectEvents[i].previousMetatileBehavior == MapGridGetMetatileBehaviorAt((s16)(gObjectEvents[i].currentCoords.x), (s16)(gObjectEvents[i].currentCoords.y)))
         {
             gObjectEvents[i].previousCoords.x = gObjectEvents[i].currentCoords.x;
             gObjectEvents[i].previousCoords.y = gObjectEvents[i].currentCoords.y;
         }
-        else if (gObjectEvents[i].mapobj_unk_1F == MapGridGetMetatileBehaviorAt((s16)(gObjectEvents[i].currentCoords.x - 1), (s16)(gObjectEvents[i].currentCoords.y)))
+        else if (gObjectEvents[i].previousMetatileBehavior == MapGridGetMetatileBehaviorAt((s16)(gObjectEvents[i].currentCoords.x - 1), (s16)(gObjectEvents[i].currentCoords.y)))
         {
             gObjectEvents[i].previousCoords.x = gObjectEvents[i].currentCoords.x - 1;
             gObjectEvents[i].previousCoords.y = gObjectEvents[i].currentCoords.y;
         }
-        else if (gObjectEvents[i].mapobj_unk_1F == MapGridGetMetatileBehaviorAt((s16)(gObjectEvents[i].currentCoords.x + 1), (s16)(gObjectEvents[i].currentCoords.y)))
+        else if (gObjectEvents[i].previousMetatileBehavior == MapGridGetMetatileBehaviorAt((s16)(gObjectEvents[i].currentCoords.x + 1), (s16)(gObjectEvents[i].currentCoords.y)))
         {
             gObjectEvents[i].previousCoords.x = gObjectEvents[i].currentCoords.x + 1;
             gObjectEvents[i].previousCoords.y = gObjectEvents[i].currentCoords.y;
         }
-        else if (gObjectEvents[i].mapobj_unk_1F == MapGridGetMetatileBehaviorAt((s16)(gObjectEvents[i].currentCoords.x), (s16)(gObjectEvents[i].currentCoords.y - 1)))
+        else if (gObjectEvents[i].previousMetatileBehavior == MapGridGetMetatileBehaviorAt((s16)(gObjectEvents[i].currentCoords.x), (s16)(gObjectEvents[i].currentCoords.y - 1)))
         {
             gObjectEvents[i].previousCoords.x = gObjectEvents[i].currentCoords.x;
             gObjectEvents[i].previousCoords.y = gObjectEvents[i].currentCoords.y - 1;
         }
-        else if (gObjectEvents[i].mapobj_unk_1F == MapGridGetMetatileBehaviorAt((s16)(gObjectEvents[i].currentCoords.x), (s16)(gObjectEvents[i].currentCoords.y + 1)))
+        else if (gObjectEvents[i].previousMetatileBehavior == MapGridGetMetatileBehaviorAt((s16)(gObjectEvents[i].currentCoords.x), (s16)(gObjectEvents[i].currentCoords.y + 1)))
         {
             gObjectEvents[i].previousCoords.x = gObjectEvents[i].currentCoords.x;
             gObjectEvents[i].previousCoords.y = gObjectEvents[i].currentCoords.y + 1;
@@ -140,7 +140,7 @@ void sub_815A540(void)
         {
             struct ObjectEvent * objectEvent = &gObjectEvents[gPlayerAvatar.objectEventId];
             SetPlayerAvatarTransitionFlags(0x01);
-            DestroySprite(&gSprites[objectEvent->mapobj_unk_1A]);
+            DestroySprite(&gSprites[objectEvent->fieldEffectSpriteId]);
         }
     }
 }
diff --git a/src/quest_log_player.c b/src/quest_log_player.c
index ccf0565fb..b57e3930c 100644
--- a/src/quest_log_player.c
+++ b/src/quest_log_player.c
@@ -58,7 +58,7 @@ static void sub_81504A8(void)
 {
     struct ObjectEvent *objectEvent = &gObjectEvents[gPlayerAvatar.objectEventId];
     sub_81507BC(objectEvent, GetPlayerAvatarGraphicsIdByStateId(0));
-    ObjectEventTurn(objectEvent, objectEvent->placeholder18);
+    ObjectEventTurn(objectEvent, objectEvent->movementDirection);
     SetPlayerAvatarStateMask(PLAYER_AVATAR_FLAG_ON_FOOT);
 }
 
@@ -66,7 +66,7 @@ static void sub_81504E8(void)
 {
     struct ObjectEvent *objectEvent = &gObjectEvents[gPlayerAvatar.objectEventId];
     sub_81507BC(objectEvent, GetPlayerAvatarGraphicsIdByStateId(1));
-    ObjectEventTurn(objectEvent, objectEvent->placeholder18);
+    ObjectEventTurn(objectEvent, objectEvent->movementDirection);
     SetPlayerAvatarStateMask(PLAYER_AVATAR_FLAG_MACH_BIKE);
     sub_80BD620(0, 0);
 }
@@ -125,7 +125,7 @@ static void sub_81505C4(u8 taskId)
                     sub_81507BC(objectEvent, GetPlayerAvatarGraphicsIdByStateId(0));
                 else
                     sub_81507BC(objectEvent, GetPlayerAvatarGraphicsIdByStateId(2));
-                ObjectEventTurn(objectEvent, objectEvent->placeholder18);
+                ObjectEventTurn(objectEvent, objectEvent->movementDirection);
                 sprite->pos2.x = 0;
                 sprite->pos2.y = 0;
                 ScriptContext2_Disable();
@@ -143,13 +143,13 @@ static void sub_8150708(void)
     if (!(gPlayerAvatar.flags & PLAYER_AVATAR_FLAG_SURFING))
     {
         sub_81507BC(objectEvent, GetPlayerAvatarGraphicsIdByStateId(2));
-        ObjectEventTurn(objectEvent, objectEvent->placeholder18);
+        ObjectEventTurn(objectEvent, objectEvent->movementDirection);
         SetPlayerAvatarStateMask(PLAYER_AVATAR_FLAG_SURFING);
         gFieldEffectArguments[0] = objectEvent->currentCoords.x;
         gFieldEffectArguments[1] = objectEvent->currentCoords.y;
         gFieldEffectArguments[2] = gPlayerAvatar.objectEventId;
         fieldEffectId = FieldEffectStart(FLDEFF_SURF_BLOB);
-        objectEvent->mapobj_unk_1A = fieldEffectId;
+        objectEvent->fieldEffectSpriteId = fieldEffectId;
         sub_80DC44C(fieldEffectId, 1);
     }
 }