field_fadetransition begin

14 files changed, 507 insertions, 1085 deletions

diff --git a/asm/field_fadetransition.s b/asm/field_fadetransition.s
index 4b707a46a..0c248ba6c 100644
--- a/asm/field_fadetransition.s
+++ b/asm/field_fadetransition.s
@@ -5,1091 +5,6 @@
 
 	.text
 
-	thumb_func_start palette_bg_faded_fill_white
-palette_bg_faded_fill_white: @ 807DB14
-	push {lr}
-	sub sp, 0x4
-	ldr r0, _0807DB2C @ =0x7fff7fff
-	str r0, [sp]
-	ldr r1, _0807DB30 @ =gPlttBufferFaded
-	ldr r2, _0807DB34 @ =0x01000100
-	mov r0, sp
-	bl CpuFastSet
-	add sp, 0x4
-	pop {r0}
-	bx r0
-	.align 2, 0
-_0807DB2C: .4byte 0x7fff7fff
-_0807DB30: .4byte gPlttBufferFaded
-_0807DB34: .4byte 0x01000100
-	thumb_func_end palette_bg_faded_fill_white
-
-	thumb_func_start palette_bg_faded_fill_black
-palette_bg_faded_fill_black: @ 807DB38
-	push {lr}
-	sub sp, 0x4
-	movs r0, 0
-	str r0, [sp]
-	ldr r1, _0807DB50 @ =gPlttBufferFaded
-	ldr r2, _0807DB54 @ =0x01000100
-	mov r0, sp
-	bl CpuFastSet
-	add sp, 0x4
-	pop {r0}
-	bx r0
-	.align 2, 0
-_0807DB50: .4byte gPlttBufferFaded
-_0807DB54: .4byte 0x01000100
-	thumb_func_end palette_bg_faded_fill_black
-
-	thumb_func_start pal_fill_for_maplights
-pal_fill_for_maplights: @ 807DB58
-	push {r4,lr}
-	bl get_map_light_from_warp0
-	adds r4, r0, 0
-	lsls r4, 24
-	lsrs r4, 24
-	bl GetCurrentMapType
-	adds r1, r0, 0
-	lsls r1, 24
-	lsrs r1, 24
-	adds r0, r4, 0
-	bl sub_80C9DCC
-	lsls r0, 24
-	lsrs r0, 24
-	cmp r0, 0
-	beq _0807DB82
-	cmp r0, 0x1
-	beq _0807DB94
-	b _0807DBA4
-_0807DB82:
-	bl palette_bg_faded_fill_black
-	movs r0, 0
-	movs r1, 0
-	bl fade_screen
-	bl palette_bg_faded_fill_black
-	b _0807DBA4
-_0807DB94:
-	bl palette_bg_faded_fill_white
-	movs r0, 0x2
-	movs r1, 0
-	bl fade_screen
-	bl palette_bg_faded_fill_white
-_0807DBA4:
-	pop {r4}
-	pop {r0}
-	bx r0
-	thumb_func_end pal_fill_for_maplights
-
-	thumb_func_start sub_807DBAC
-sub_807DBAC: @ 807DBAC
-	push {r4,lr}
-	bl get_map_light_from_warp0
-	adds r4, r0, 0
-	lsls r4, 24
-	lsrs r4, 24
-	bl GetCurrentMapType
-	adds r1, r0, 0
-	lsls r1, 24
-	lsrs r1, 24
-	adds r0, r4, 0
-	bl sub_80C9DCC
-	lsls r0, 24
-	lsrs r0, 24
-	cmp r0, 0
-	beq _0807DBD6
-	cmp r0, 0x1
-	beq _0807DBE8
-	b _0807DBF8
-_0807DBD6:
-	bl palette_bg_faded_fill_black
-	movs r0, 0
-	movs r1, 0x3
-	bl fade_screen
-	bl palette_bg_faded_fill_black
-	b _0807DBF8
-_0807DBE8:
-	bl palette_bg_faded_fill_white
-	movs r0, 0x2
-	movs r1, 0x3
-	bl fade_screen
-	bl palette_bg_faded_fill_white
-_0807DBF8:
-	pop {r4}
-	pop {r0}
-	bx r0
-	thumb_func_end sub_807DBAC
-
-	thumb_func_start sub_807DC00
-sub_807DC00: @ 807DC00
-	push {lr}
-	bl palette_bg_faded_fill_black
-	movs r0, 0
-	movs r1, 0
-	bl fade_screen
-	bl palette_bg_faded_fill_black
-	pop {r0}
-	bx r0
-	thumb_func_end sub_807DC00
-
-	thumb_func_start sub_807DC18
-sub_807DC18: @ 807DC18
-	push {r4,lr}
-	bl warp1_get_mapheader
-	adds r4, r0, 0
-	ldr r1, _0807DC54 @ =gMapHeader
-	ldrb r0, [r4, 0x14]
-	ldrb r1, [r1, 0x14]
-	cmp r0, r1
-	beq _0807DC36
-	movs r1, 0
-	bl sub_80F8110
-	lsls r0, 24
-	cmp r0, 0
-	bne _0807DC58
-_0807DC36:
-	bl GetCurrentMapType
-	lsls r0, 24
-	lsrs r0, 24
-	ldrb r1, [r4, 0x17]
-	bl sub_80C9D7C
-	lsls r0, 24
-	lsrs r0, 24
-	cmp r0, 0
-	beq _0807DC58
-	cmp r0, 0x1
-	beq _0807DC62
-	b _0807DC6A
-	.align 2, 0
-_0807DC54: .4byte gMapHeader
-_0807DC58:
-	movs r0, 0x1
-	movs r1, 0
-	bl fade_screen
-	b _0807DC6A
-_0807DC62:
-	movs r0, 0x3
-	movs r1, 0
-	bl fade_screen
-_0807DC6A:
-	pop {r4}
-	pop {r0}
-	bx r0
-	thumb_func_end sub_807DC18
-
-	thumb_func_start sub_807DC70
-sub_807DC70: @ 807DC70
-	push {r4,lr}
-	bl GetCurrentMapType
-	adds r4, r0, 0
-	lsls r4, 24
-	lsrs r4, 24
-	bl warp1_get_mapheader
-	ldrb r1, [r0, 0x17]
-	adds r0, r4, 0
-	bl sub_80C9D7C
-	lsls r0, 24
-	lsrs r0, 24
-	cmp r0, 0
-	beq _0807DC96
-	cmp r0, 0x1
-	beq _0807DCA0
-	b _0807DCA8
-_0807DC96:
-	movs r0, 0x1
-	movs r1, 0x3
-	bl fade_screen
-	b _0807DCA8
-_0807DCA0:
-	movs r0, 0x3
-	movs r1, 0x3
-	bl fade_screen
-_0807DCA8:
-	pop {r4}
-	pop {r0}
-	bx r0
-	thumb_func_end sub_807DC70
-
-	thumb_func_start sub_807DCB0
-sub_807DCB0: @ 807DCB0
-	push {lr}
-	lsls r0, 24
-	movs r1, 0
-	cmp r0, 0
-	bne _0807DCBC
-	movs r1, 0x1
-_0807DCBC:
-	adds r0, r1, 0
-	bl sub_805CB04
-	pop {r0}
-	bx r0
-	thumb_func_end sub_807DCB0
-
-	thumb_func_start task0A_nop_for_a_while
-task0A_nop_for_a_while: @ 807DCC8
-	push {r4,lr}
-	lsls r0, 24
-	lsrs r4, r0, 24
-	bl sub_807E418
-	cmp r0, 0x1
-	bne _0807DCDC
-	adds r0, r4, 0
-	bl DestroyTask
-_0807DCDC:
-	pop {r4}
-	pop {r0}
-	bx r0
-	thumb_func_end task0A_nop_for_a_while
-
-	thumb_func_start sub_807DCE4
-sub_807DCE4: @ 807DCE4
-	push {lr}
-	bl ScriptContext2_Enable
-	bl Overworld_PlaySpecialMapMusic
-	bl sub_807DC00
-	ldr r0, _0807DD00 @ =task0A_nop_for_a_while
-	movs r1, 0xA
-	bl CreateTask
-	pop {r0}
-	bx r0
-	.align 2, 0
-_0807DD00: .4byte task0A_nop_for_a_while
-	thumb_func_end sub_807DCE4
-
-	thumb_func_start task0A_asap_script_env_2_enable_and_set_ctx_running
-task0A_asap_script_env_2_enable_and_set_ctx_running: @ 807DD04
-	push {r4,lr}
-	lsls r0, 24
-	lsrs r4, r0, 24
-	bl sub_807E418
-	cmp r0, 0x1
-	bne _0807DD1C
-	adds r0, r4, 0
-	bl DestroyTask
-	bl EnableBothScriptContexts
-_0807DD1C:
-	pop {r4}
-	pop {r0}
-	bx r0
-	thumb_func_end task0A_asap_script_env_2_enable_and_set_ctx_running
-
-	thumb_func_start FieldCallback_ReturnToEventScript2
-FieldCallback_ReturnToEventScript2: @ 807DD24
-	push {lr}
-	bl ScriptContext2_Enable
-	bl Overworld_PlaySpecialMapMusic
-	bl sub_807DC00
-	ldr r0, _0807DD40 @ =task0A_asap_script_env_2_enable_and_set_ctx_running
-	movs r1, 0xA
-	bl CreateTask
-	pop {r0}
-	bx r0
-	.align 2, 0
-_0807DD40: .4byte task0A_asap_script_env_2_enable_and_set_ctx_running
-	thumb_func_end FieldCallback_ReturnToEventScript2
-
-	thumb_func_start sub_807DD44
-sub_807DD44: @ 807DD44
-	push {lr}
-	bl ScriptContext2_Enable
-	bl sub_807DC00
-	ldr r0, _0807DD5C @ =task0A_asap_script_env_2_enable_and_set_ctx_running
-	movs r1, 0xA
-	bl CreateTask
-	pop {r0}
-	bx r0
-	.align 2, 0
-_0807DD5C: .4byte task0A_asap_script_env_2_enable_and_set_ctx_running
-	thumb_func_end sub_807DD44
-
-	thumb_func_start task_mpl_807DD60
-task_mpl_807DD60: @ 807DD60
-	push {r4,r5,lr}
-	lsls r0, 24
-	lsrs r5, r0, 24
-	lsls r0, r5, 2
-	adds r0, r5
-	lsls r0, 3
-	ldr r2, _0807DD84 @ =gTasks
-	adds r4, r0, r2
-	movs r1, 0x8
-	ldrsh r0, [r4, r1]
-	cmp r0, 0x1
-	beq _0807DD9A
-	cmp r0, 0x1
-	bgt _0807DD88
-	cmp r0, 0
-	beq _0807DD8E
-	b _0807DDCA
-	.align 2, 0
-_0807DD84: .4byte gTasks
-_0807DD88:
-	cmp r0, 0x2
-	beq _0807DDB8
-	b _0807DDCA
-_0807DD8E:
-	bl sub_8081150
-	lsls r0, 24
-	lsrs r0, 24
-	strh r0, [r4, 0xA]
-	b _0807DDB0
-_0807DD9A:
-	movs r1, 0xA
-	ldrsh r0, [r4, r1]
-	lsls r1, r0, 2
-	adds r1, r0
-	lsls r1, 3
-	adds r1, r2
-	ldrb r0, [r1, 0x4]
-	cmp r0, 0x1
-	beq _0807DDCA
-	bl pal_fill_for_maplights
-_0807DDB0:
-	ldrh r0, [r4, 0x8]
-	adds r0, 0x1
-	strh r0, [r4, 0x8]
-	b _0807DDCA
-_0807DDB8:
-	bl sub_807E418
-	cmp r0, 0x1
-	bne _0807DDCA
-	bl ScriptContext2_Disable
-	adds r0, r5, 0
-	bl DestroyTask
-_0807DDCA:
-	pop {r4,r5}
-	pop {r0}
-	bx r0
-	thumb_func_end task_mpl_807DD60
-
-	thumb_func_start sub_807DDD0
-sub_807DDD0: @ 807DDD0
-	push {lr}
-	bl ScriptContext2_Enable
-	bl Overworld_PlaySpecialMapMusic
-	bl palette_bg_faded_fill_black
-	ldr r0, _0807DDEC @ =task_mpl_807DD60
-	movs r1, 0xA
-	bl CreateTask
-	pop {r0}
-	bx r0
-	.align 2, 0
-_0807DDEC: .4byte task_mpl_807DD60
-	thumb_func_end sub_807DDD0
-
-	thumb_func_start sub_807DDF0
-sub_807DDF0: @ 807DDF0
-	push {r4,r5,lr}
-	lsls r0, 24
-	lsrs r5, r0, 24
-	lsls r0, r5, 2
-	adds r0, r5
-	lsls r0, 3
-	ldr r1, _0807DE14 @ =gTasks
-	adds r4, r0, r1
-	movs r1, 0x8
-	ldrsh r0, [r4, r1]
-	cmp r0, 0x1
-	beq _0807DE24
-	cmp r0, 0x1
-	bgt _0807DE18
-	cmp r0, 0
-	beq _0807DE1E
-	b _0807DE50
-	.align 2, 0
-_0807DE14: .4byte gTasks
-_0807DE18:
-	cmp r0, 0x2
-	beq _0807DE3A
-	b _0807DE50
-_0807DE1E:
-	bl sub_800AB9C
-	b _0807DE32
-_0807DE24:
-	bl IsLinkTaskFinished
-	lsls r0, 24
-	cmp r0, 0
-	beq _0807DE50
-	bl pal_fill_for_maplights
-_0807DE32:
-	ldrh r0, [r4, 0x8]
-	adds r0, 0x1
-	strh r0, [r4, 0x8]
-	b _0807DE50
-_0807DE3A:
-	bl sub_807E418
-	cmp r0, 0x1
-	bne _0807DE50
-	bl sub_8009FE8
-	bl ScriptContext2_Disable
-	adds r0, r5, 0
-	bl DestroyTask
-_0807DE50:
-	pop {r4,r5}
-	pop {r0}
-	bx r0
-	thumb_func_end sub_807DDF0
-
-	thumb_func_start sub_807DE58
-sub_807DE58: @ 807DE58
-	push {lr}
-	bl ScriptContext2_Enable
-	bl Overworld_PlaySpecialMapMusic
-	bl palette_bg_faded_fill_black
-	ldr r0, _0807DE74 @ =sub_807DDF0
-	movs r1, 0xA
-	bl CreateTask
-	pop {r0}
-	bx r0
-	.align 2, 0
-_0807DE74: .4byte sub_807DDF0
-	thumb_func_end sub_807DE58
-
-	thumb_func_start sub_807DE78
-sub_807DE78: @ 807DE78
-	push {r4,r5,lr}
-	sub sp, 0x4
-	lsls r0, 24
-	lsrs r5, r0, 24
-	mov r4, sp
-	adds r4, 0x2
-	mov r0, sp
-	adds r1, r4, 0
-	bl PlayerGetDestCoords
-	mov r0, sp
-	movs r1, 0
-	ldrsh r0, [r0, r1]
-	movs r2, 0
-	ldrsh r1, [r4, r2]
-	bl MapGridGetMetatileBehaviorAt
-	lsls r0, 24
-	lsrs r4, r0, 24
-	adds r0, r4, 0
-	bl MetatileBehavior_IsWarpDoor_2
-	lsls r0, 24
-	lsrs r0, 24
-	cmp r0, 0x1
-	bne _0807DEE8
-	ldr r5, _0807DED8 @ =sub_807DFBC
-	bl get_map_light_from_warp0
-	adds r4, r0, 0
-	lsls r4, 24
-	lsrs r4, 24
-	bl GetCurrentMapType
-	adds r1, r0, 0
-	lsls r1, 24
-	lsrs r1, 24
-	adds r0, r4, 0
-	bl sub_80C9DCC
-	lsls r0, 24
-	lsrs r0, 24
-	cmp r0, 0
-	beq _0807DEDC
-	cmp r0, 0x1
-	beq _0807DEE2
-	b _0807DF2E
-	.align 2, 0
-_0807DED8: .4byte sub_807DFBC
-_0807DEDC:
-	bl palette_bg_faded_fill_black
-	b _0807DF2E
-_0807DEE2:
-	bl palette_bg_faded_fill_white
-	b _0807DF2E
-_0807DEE8:
-	adds r0, r5, 0
-	bl sub_807DF4C
-	adds r0, r4, 0
-	bl MetatileBehavior_IsCaveDoor
-	lsls r0, 24
-	lsrs r0, 24
-	cmp r0, 0x1
-	bne _0807DF04
-	ldr r5, _0807DF00 @ =task_map_chg_seq_0807E20C
-	b _0807DF2E
-	.align 2, 0
-_0807DF00: .4byte task_map_chg_seq_0807E20C
-_0807DF04:
-	adds r0, r4, 0
-	bl MetatileBehavior_IsUnknownWarp6C_to_6F
-	lsls r0, 24
-	lsrs r0, 24
-	cmp r0, 0x1
-	bne _0807DF2C
-	ldr r0, _0807DF20 @ =gUnknown_2031DE0
-	ldrb r0, [r0]
-	ldr r5, _0807DF24 @ =task_map_chg_seq_0807E2CC
-	cmp r0, 0
-	bne _0807DF2E
-	ldr r5, _0807DF28 @ =sub_807EC34
-	b _0807DF2E
-	.align 2, 0
-_0807DF20: .4byte gUnknown_2031DE0
-_0807DF24: .4byte task_map_chg_seq_0807E2CC
-_0807DF28: .4byte sub_807EC34
-_0807DF2C:
-	ldr r5, _0807DF44 @ =task_map_chg_seq_0807E2CC
-_0807DF2E:
-	ldr r1, _0807DF48 @ =gUnknown_2031DE0
-	movs r0, 0
-	strb r0, [r1]
-	adds r0, r5, 0
-	movs r1, 0xA
-	bl CreateTask
-	add sp, 0x4
-	pop {r4,r5}
-	pop {r0}
-	bx r0
-	.align 2, 0
-_0807DF44: .4byte task_map_chg_seq_0807E2CC
-_0807DF48: .4byte gUnknown_2031DE0
-	thumb_func_end sub_807DE78
-
-	thumb_func_start sub_807DF4C
-sub_807DF4C: @ 807DF4C
-	push {lr}
-	lsls r0, 24
-	cmp r0, 0
-	bne _0807DF5A
-	bl pal_fill_for_maplights
-	b _0807DF5E
-_0807DF5A:
-	bl sub_807DC00
-_0807DF5E:
-	pop {r0}
-	bx r0
-	thumb_func_end sub_807DF4C
-
-	thumb_func_start sub_807DF64
-sub_807DF64: @ 807DF64
-	push {lr}
-	bl Overworld_PlaySpecialMapMusic
-	bl sub_8111CF0
-	movs r0, 0
-	bl sub_807DE78
-	bl ScriptContext2_Enable
-	pop {r0}
-	bx r0
-	thumb_func_end sub_807DF64
-
-	thumb_func_start sub_807DF7C
-sub_807DF7C: @ 807DF7C
-	push {lr}
-	bl Overworld_PlaySpecialMapMusic
-	bl sub_8111CF0
-	movs r0, 0x1
-	bl sub_807DE78
-	bl ScriptContext2_Enable
-	pop {r0}
-	bx r0
-	thumb_func_end sub_807DF7C
-
-	thumb_func_start sub_807DF94
-sub_807DF94: @ 807DF94
-	push {lr}
-	bl Overworld_PlaySpecialMapMusic
-	bl pal_fill_for_maplights
-	bl sub_8111CF0
-	movs r0, 0x28
-	bl PlaySE
-	ldr r0, _0807DFB8 @ =sub_807E31C
-	movs r1, 0xA
-	bl CreateTask
-	bl ScriptContext2_Enable
-	pop {r0}
-	bx r0
-	.align 2, 0
-_0807DFB8: .4byte sub_807E31C
-	thumb_func_end sub_807DF94
-
-	thumb_func_start sub_807DFBC
-sub_807DFBC: @ 807DFBC
-	push {r4-r7,lr}
-	lsls r0, 24
-	lsrs r5, r0, 24
-	lsls r0, r5, 2
-	adds r0, r5
-	lsls r0, 3
-	ldr r1, _0807DFF8 @ =gTasks
-	adds r4, r0, r1
-	adds r6, r4, 0
-	adds r6, 0xC
-	adds r7, r4, 0
-	adds r7, 0xE
-	movs r2, 0x8
-	ldrsh r0, [r4, r2]
-	adds r2, r1, 0
-	cmp r0, 0
-	bne _0807DFE2
-	movs r0, 0x5
-	strh r0, [r4, 0x8]
-_0807DFE2:
-	movs r1, 0x8
-	ldrsh r0, [r4, r1]
-	cmp r0, 0x9
-	bls _0807DFEC
-	b _0807E206
-_0807DFEC:
-	lsls r0, 2
-	ldr r1, _0807DFFC @ =_0807E000
-	adds r0, r1
-	ldr r0, [r0]
-	mov pc, r0
-	.align 2, 0
-_0807DFF8: .4byte gTasks
-_0807DFFC: .4byte _0807E000
-	.align 2, 0
-_0807E000:
-	.4byte _0807E028
-	.4byte _0807E160
-	.4byte _0807E198
-	.4byte _0807E1DC
-	.4byte _0807E1F8
-	.4byte _0807E04C
-	.4byte _0807E064
-	.4byte _0807E0A2
-	.4byte _0807E0EC
-	.4byte _0807E10E
-_0807E028:
-	movs r0, 0
-	bl sub_807DCB0
-	bl player_bitmagic
-	adds r0, r6, 0
-	adds r1, r7, 0
-	bl PlayerGetDestCoords
-	movs r2, 0
-	ldrsh r0, [r6, r2]
-	movs r2, 0
-	ldrsh r1, [r7, r2]
-	bl FieldSetDoorOpened
-	movs r0, 0x1
-	strh r0, [r4, 0x8]
-	b _0807E206
-_0807E04C:
-	movs r0, 0
-	bl sub_807DCB0
-	bl player_bitmagic
-	bl sub_807F114
-	bl sub_807DBAC
-	movs r0, 0x6
-	strh r0, [r4, 0x8]
-	b _0807E206
-_0807E064:
-	ldrh r0, [r4, 0x26]
-	adds r0, 0x1
-	strh r0, [r4, 0x26]
-	lsls r0, 16
-	asrs r0, 16
-	cmp r0, 0x19
-	beq _0807E074
-	b _0807E206
-_0807E074:
-	adds r0, r6, 0
-	adds r1, r7, 0
-	bl PlayerGetDestCoords
-	movs r1, 0
-	ldrsh r0, [r6, r1]
-	movs r2, 0
-	ldrsh r1, [r7, r2]
-	bl GetDoorSoundEffect
-	lsls r0, 16
-	lsrs r0, 16
-	bl PlaySE
-	movs r1, 0
-	ldrsh r0, [r6, r1]
-	movs r2, 0
-	ldrsh r1, [r7, r2]
-	bl FieldAnimateDoorOpen
-	movs r0, 0x7
-	strh r0, [r4, 0x8]
-	b _0807E206
-_0807E0A2:
-	bl FieldIsDoorAnimationRunning
-	lsls r0, 24
-	cmp r0, 0
-	beq _0807E0AE
-	b _0807E206
-_0807E0AE:
-	adds r0, r4, 0
-	adds r0, 0x20
-	adds r1, r4, 0
-	adds r1, 0x22
-	bl PlayerGetDestCoords
-	movs r0, 0x1
-	bl sub_807DCB0
-	movs r0, 0xFF
-	movs r1, 0
-	movs r2, 0
-	bl GetFieldObjectIdByLocalIdAndMap
-	adds r1, r0, 0
-	lsls r1, 24
-	lsrs r1, 24
-	lsls r0, r1, 3
-	adds r0, r1
-	lsls r0, 2
-	ldr r1, _0807E0E8 @ =gMapObjects
-	adds r0, r1
-	movs r1, 0x10
-	bl FieldObjectSetHeldMovement
-	movs r0, 0x8
-	strh r0, [r4, 0x8]
-	b _0807E206
-	.align 2, 0
-_0807E0E8: .4byte gMapObjects
-_0807E0EC:
-	ldrh r0, [r4, 0x24]
-	adds r0, 0x1
-	strh r0, [r4, 0x24]
-	lsls r0, 16
-	asrs r0, 16
-	cmp r0, 0xE
-	beq _0807E0FC
-	b _0807E206
-_0807E0FC:
-	movs r1, 0x20
-	ldrsh r0, [r4, r1]
-	movs r2, 0x22
-	ldrsh r1, [r4, r2]
-	bl FieldAnimateDoorClose
-	movs r0, 0x9
-	strh r0, [r4, 0x8]
-	b _0807E206
-_0807E10E:
-	bl sub_807E418
-	cmp r0, 0
-	beq _0807E206
-	bl walkrun_is_standing_still
-	lsls r0, 24
-	cmp r0, 0
-	beq _0807E206
-	bl FieldIsDoorAnimationRunning
-	lsls r0, 24
-	cmp r0, 0
-	bne _0807E206
-	ldr r0, _0807E158 @ =sub_807F204
-	bl FuncIsActiveTask
-	lsls r0, 24
-	cmp r0, 0
-	bne _0807E206
-	movs r0, 0xFF
-	movs r1, 0
-	movs r2, 0
-	bl GetFieldObjectIdByLocalIdAndMap
-	adds r1, r0, 0
-	lsls r1, 24
-	lsrs r1, 24
-	lsls r0, r1, 3
-	adds r0, r1
-	lsls r0, 2
-	ldr r1, _0807E15C @ =gMapObjects
-	adds r0, r1
-	bl FieldObjectClearHeldMovementIfFinished
-	b _0807E1F2
-	.align 2, 0
-_0807E158: .4byte sub_807F204
-_0807E15C: .4byte gMapObjects
-_0807E160:
-	bl sub_807E418
-	cmp r0, 0
-	beq _0807E206
-	movs r0, 0x1
-	bl sub_807DCB0
-	movs r0, 0xFF
-	movs r1, 0
-	movs r2, 0
-	bl GetFieldObjectIdByLocalIdAndMap
-	adds r1, r0, 0
-	lsls r1, 24
-	lsrs r1, 24
-	lsls r0, r1, 3
-	adds r0, r1
-	lsls r0, 2
-	ldr r1, _0807E194 @ =gMapObjects
-	adds r0, r1
-	movs r1, 0x10
-	bl FieldObjectSetHeldMovement
-	movs r0, 0x2
-	strh r0, [r4, 0x8]
-	b _0807E206
-	.align 2, 0
-_0807E194: .4byte gMapObjects
-_0807E198:
-	bl walkrun_is_standing_still
-	lsls r0, 24
-	cmp r0, 0
-	beq _0807E206
-	movs r1, 0
-	ldrsh r0, [r6, r1]
-	movs r2, 0
-	ldrsh r1, [r7, r2]
-	bl FieldAnimateDoorClose
-	lsls r0, 24
-	asrs r0, 24
-	strh r0, [r4, 0xA]
-	movs r0, 0xFF
-	movs r1, 0
-	movs r2, 0
-	bl GetFieldObjectIdByLocalIdAndMap
-	adds r1, r0, 0
-	lsls r1, 24
-	lsrs r1, 24
-	lsls r0, r1, 3
-	adds r0, r1
-	lsls r0, 2
-	ldr r1, _0807E1D8 @ =gMapObjects
-	adds r0, r1
-	bl FieldObjectClearHeldMovementIfFinished
-	movs r0, 0x3
-	strh r0, [r4, 0x8]
-	b _0807E206
-	.align 2, 0
-_0807E1D8: .4byte gMapObjects
-_0807E1DC:
-	movs r1, 0xA
-	ldrsh r0, [r4, r1]
-	cmp r0, 0
-	blt _0807E1F2
-	lsls r1, r0, 2
-	adds r1, r0
-	lsls r1, 3
-	adds r1, r2
-	ldrb r0, [r1, 0x4]
-	cmp r0, 0x1
-	beq _0807E206
-_0807E1F2:
-	movs r0, 0x4
-	strh r0, [r4, 0x8]
-	b _0807E206
-_0807E1F8:
-	bl UnfreezeMapObjects
-	bl ScriptContext2_Disable
-	adds r0, r5, 0
-	bl DestroyTask
-_0807E206:
-	pop {r4-r7}
-	pop {r0}
-	bx r0
-	thumb_func_end sub_807DFBC
-
-	thumb_func_start task_map_chg_seq_0807E20C
-task_map_chg_seq_0807E20C: @ 807E20C
-	push {r4-r7,lr}
-	lsls r0, 24
-	lsrs r4, r0, 24
-	lsls r0, r4, 2
-	adds r0, r4
-	lsls r0, 3
-	ldr r1, _0807E238 @ =gTasks
-	adds r5, r0, r1
-	adds r6, r5, 0
-	adds r6, 0xC
-	adds r7, r5, 0
-	adds r7, 0xE
-	movs r1, 0x8
-	ldrsh r0, [r5, r1]
-	cmp r0, 0x1
-	beq _0807E25E
-	cmp r0, 0x1
-	bgt _0807E23C
-	cmp r0, 0
-	beq _0807E246
-	b _0807E2C6
-	.align 2, 0
-_0807E238: .4byte gTasks
-_0807E23C:
-	cmp r0, 0x2
-	beq _0807E2A8
-	cmp r0, 0x3
-	beq _0807E2B8
-	b _0807E2C6
-_0807E246:
-	movs r0, 0
-	bl sub_807DCB0
-	bl player_bitmagic
-	adds r0, r6, 0
-	adds r1, r7, 0
-	bl PlayerGetDestCoords
-	movs r0, 0x1
-	strh r0, [r5, 0x8]
-	b _0807E2C6
-_0807E25E:
-	bl sub_807E418
-	cmp r0, 0
-	beq _0807E2C6
-	movs r0, 0x1
-	bl sub_807DCB0
-	movs r0, 0xFF
-	movs r1, 0
-	movs r2, 0
-	bl GetFieldObjectIdByLocalIdAndMap
-	lsls r0, 24
-	lsrs r0, 24
-	lsls r4, r0, 3
-	adds r4, r0
-	lsls r4, 2
-	ldr r0, _0807E2A4 @ =gMapObjects
-	adds r4, r0
-	bl GetPlayerFacingDirection
-	lsls r0, 24
-	lsrs r0, 24
-	bl sub_8063F84
-	adds r1, r0, 0
-	lsls r1, 24
-	lsrs r1, 24
-	adds r0, r4, 0
-	bl FieldObjectSetHeldMovement
-	movs r0, 0x2
-	strh r0, [r5, 0x8]
-	b _0807E2C6
-	.align 2, 0
-_0807E2A4: .4byte gMapObjects
-_0807E2A8:
-	bl walkrun_is_standing_still
-	lsls r0, 24
-	cmp r0, 0
-	beq _0807E2C6
-	movs r0, 0x3
-	strh r0, [r5, 0x8]
-	b _0807E2C6
-_0807E2B8:
-	bl UnfreezeMapObjects
-	bl ScriptContext2_Disable
-	adds r0, r4, 0
-	bl DestroyTask
-_0807E2C6:
-	pop {r4-r7}
-	pop {r0}
-	bx r0
-	thumb_func_end task_map_chg_seq_0807E20C
-
-	thumb_func_start task_map_chg_seq_0807E2CC
-task_map_chg_seq_0807E2CC: @ 807E2CC
-	push {r4,r5,lr}
-	lsls r0, 24
-	lsrs r5, r0, 24
-	ldr r1, _0807E2EC @ =gTasks
-	lsls r0, r5, 2
-	adds r0, r5
-	lsls r0, 3
-	adds r4, r0, r1
-	movs r1, 0x8
-	ldrsh r0, [r4, r1]
-	cmp r0, 0
-	beq _0807E2F0
-	cmp r0, 0x1
-	beq _0807E300
-	b _0807E316
-	.align 2, 0
-_0807E2EC: .4byte gTasks
-_0807E2F0:
-	bl player_bitmagic
-	bl ScriptContext2_Enable
-	ldrh r0, [r4, 0x8]
-	adds r0, 0x1
-	strh r0, [r4, 0x8]
-	b _0807E316
-_0807E300:
-	bl sub_807E418
-	cmp r0, 0
-	beq _0807E316
-	bl UnfreezeMapObjects
-	bl ScriptContext2_Disable
-	adds r0, r5, 0
-	bl DestroyTask
-_0807E316:
-	pop {r4,r5}
-	pop {r0}
-	bx r0
-	thumb_func_end task_map_chg_seq_0807E2CC
-
-	thumb_func_start sub_807E31C
-sub_807E31C: @ 807E31C
-	push {r4,r5,lr}
-	lsls r0, 24
-	lsrs r5, r0, 24
-	ldr r1, _0807E33C @ =gTasks
-	lsls r0, r5, 2
-	adds r0, r5
-	lsls r0, 3
-	adds r4, r0, r1
-	movs r1, 0x8
-	ldrsh r0, [r4, r1]
-	cmp r0, 0
-	beq _0807E340
-	cmp r0, 0x1
-	beq _0807E354
-	b _0807E372
-	.align 2, 0
-_0807E33C: .4byte gTasks
-_0807E340:
-	bl player_bitmagic
-	bl ScriptContext2_Enable
-	bl sub_805DC04
-	ldrh r0, [r4, 0x8]
-	adds r0, 0x1
-	strh r0, [r4, 0x8]
-	b _0807E372
-_0807E354:
-	bl sub_807E418
-	cmp r0, 0
-	beq _0807E372
-	bl sub_805DC24
-	cmp r0, 0x1
-	beq _0807E372
-	bl UnfreezeMapObjects
-	bl ScriptContext2_Disable
-	adds r0, r5, 0
-	bl DestroyTask
-_0807E372:
-	pop {r4,r5}
-	pop {r0}
-	bx r0
-	thumb_func_end sub_807E31C
-
-	thumb_func_start sub_807E378
-sub_807E378: @ 807E378
-	push {r4,lr}
-	lsls r0, 24
-	lsrs r4, r0, 24
-	bl sub_807E418
-	cmp r0, 0x1
-	bne _0807E394
-	adds r0, r4, 0
-	bl DestroyTask
-	ldr r0, _0807E39C @ =sub_806F1F0
-	movs r1, 0x50
-	bl CreateTask
-_0807E394:
-	pop {r4}
-	pop {r0}
-	bx r0
-	.align 2, 0
-_0807E39C: .4byte sub_806F1F0
-	thumb_func_end sub_807E378
-
-	thumb_func_start sub_807E3A0
-sub_807E3A0: @ 807E3A0
-	push {lr}
-	bl sub_807DC00
-	ldr r0, _0807E3B8 @ =sub_807E378
-	movs r1, 0x50
-	bl CreateTask
-	bl ScriptContext2_Enable
-	pop {r0}
-	bx r0
-	.align 2, 0
-_0807E3B8: .4byte sub_807E378
-	thumb_func_end sub_807E3A0
-
-	thumb_func_start sub_807E3BC
-sub_807E3BC: @ 807E3BC
-	push {lr}
-	bl sub_806F1D4
-	movs r0, 0
-	pop {r1}
-	bx r1
-	thumb_func_end sub_807E3BC
-
 	thumb_func_start task_mpl_807E3C8
 task_mpl_807E3C8: @ 807E3C8
 	push {r4,lr}
diff --git a/include/cable_club.h b/include/cable_club.h
index 401cfacf1..5375c2210 100644
--- a/include/cable_club.h
+++ b/include/cable_club.h
@@ -9,5 +9,6 @@
 
 // Exported ROM declarations
 void sub_8081A90(u8 taskId);
+u8 sub_8081150(void);
 
 #endif //GUARD_CABLE_CLUB_H
diff --git a/include/field_fadetransition.h b/include/field_fadetransition.h
index 4ba350491..fe67fec30 100644
--- a/include/field_fadetransition.h
+++ b/include/field_fadetransition.h
@@ -16,4 +16,6 @@ void sub_807DC18(void);
 void FieldCallback_ReturnToEventScript2(void);
 void sub_807DC00(void);
 
+bool32 sub_807E418(void);
+
 #endif // GUARD_FIELD_FADETRANSITION_H
diff --git a/include/field_map_obj.h b/include/field_map_obj.h
index 83cc263e5..7228b9318 100644
--- a/include/field_map_obj.h
+++ b/include/field_map_obj.h
@@ -90,6 +90,7 @@ u8 sub_805EB44(u8, u8, s16, s16);
 void npc_paltag_set_load(u8 mode);
 bool8 FieldObjectIsMovementOverridden(struct MapObject *mapObject);
 u8 FieldObjectCheckHeldMovementStatus(struct MapObject *mapObject);
+u8 sub_8063F84(u8 direction);
 
 // Exported data declarations
 
diff --git a/include/field_player_avatar.h b/include/field_player_avatar.h
index b87de3fef..00a3b7978 100644
--- a/include/field_player_avatar.h
+++ b/include/field_player_avatar.h
@@ -28,5 +28,8 @@ u8 GetPlayerAvatarObjectId(void);
 u8 PlayerGetZCoord(void);
 u8 GetPlayerAvatarGraphicsIdByCurrentState(void);
 void sub_805CB70(void);
+void sub_805CB04(bool8);
+void sub_805DC04(void);
+bool32 sub_805DC24(void);
 
 #endif //GUARD_FIELD_PLAYER_AVATAR_H
diff --git a/include/field_screen_effect.h b/include/field_screen_effect.h
index d1fde7eac..0c6cc35cb 100644
--- a/include/field_screen_effect.h
+++ b/include/field_screen_effect.h
@@ -7,5 +7,6 @@ void sub_80AF79C(void);
 void sub_807F028(u8);
 void sub_80B0244(void);
 void sub_807E3EC(void);
+void sub_807F114(void);
 
 #endif // GUARD_FIELD_SCREEN_EFFECT_H
diff --git a/include/fldeff.h b/include/fldeff.h
index e5e7e5f7d..e3f703947 100644
--- a/include/fldeff.h
+++ b/include/fldeff.h
@@ -13,6 +13,8 @@ bool8 CheckObjectGraphicsInFrontOfPlayer(u8 graphicsId);
 u8 oei_task_add(void);
 
 // flash
+u8 sub_80C9DCC(u8 lightLevel, u8 mapType);
+u8 sub_80C9D7C(u8 mapType1, u8 mapType2);
 
 // cut
 
diff --git a/include/link.h b/include/link.h
index 5f8d8f161..950c48d3f 100644
--- a/include/link.h
+++ b/include/link.h
@@ -213,5 +213,6 @@ void sub_8054A28(void);
 void sub_800B1F4(void);
 void LoadWirelessStatusIndicatorSpriteGfx(void);
 void CreateWirelessStatusIndicatorSprite(u8, u8);
+void sub_8009FE8(void);
 
 #endif // GUARD_LINK_H
diff --git a/include/map_preview_screen.h b/include/map_preview_screen.h
index 6590019e2..71015aacf 100644
--- a/include/map_preview_screen.h
+++ b/include/map_preview_screen.h
@@ -47,5 +47,6 @@ struct MapPreviewScreen
 u16 sub_80F8318(u8 id);
 void sub_80F85BC(u16 a0);
 u16 sub_80F856C(u8 id);
+bool8 sub_80F8110(u8 mapsec, bool8 forceFirstTime);
 
 #endif //GUARD_MAP_PREVIEW_SCREEN_H
diff --git a/include/overworld.h b/include/overworld.h
index 8c5dde2b0..2b6013217 100644
--- a/include/overworld.h
+++ b/include/overworld.h
@@ -133,6 +133,9 @@ void Overworld_ResetStateAfterDigEscRope(void);
 bool32 sub_8058244(void);
 u8 GetCurrentMapType(void);
 
+u8 get_map_light_from_warp0(void);
+const struct MapHeader *warp1_get_mapheader(void);
+
 void Overworld_CreditsMainCB(void);
 bool32 Overworld_DoScrollSceneForCredits(u8 *, const struct CreditsOverworldCmd *, u8);
 
diff --git a/include/quest_log.h b/include/quest_log.h
index 858ea593a..0690dd282 100644
--- a/include/quest_log.h
+++ b/include/quest_log.h
@@ -32,6 +32,7 @@ void sub_8112EDC(u8 a0);
 u8 sub_8112EB4(void);
 void sub_8113018(const u8 * text, u8 mode);
 void MapNamePopupWindowIdSetDummy(void);
+void sub_8111CF0(void);
 
 extern u8 gUnknown_203ADFA;
 
diff --git a/include/start_menu.h b/include/start_menu.h
index f5b38ee5e..c4a3ce19d 100644
--- a/include/start_menu.h
+++ b/include/start_menu.h
@@ -4,5 +4,7 @@
 #include "global.h"
 
 void AppendToList(u8* list, u8* pos, u8 newEntry);
+void sub_806F1F0(u8 taskId);
+void sub_806F1D4(void);
 
 #endif // GUARD_START_MENU_H
diff --git a/ld_script.txt b/ld_script.txt
index 7952b2cd8..6aa4426c1 100644
--- a/ld_script.txt
+++ b/ld_script.txt
@@ -119,6 +119,7 @@ SECTIONS {
         src/reset_save_heap.o(.text);
         asm/field_weather.o(.text);
         asm/field_weather_effects.o(.text);
+        src/field_fadetransition.o(.text);
         asm/field_fadetransition.o(.text);
         asm/field_screen_effect.o(.text);
         asm/battle_setup.o(.text);
diff --git a/src/field_fadetransition.c b/src/field_fadetransition.c
new file mode 100644
index 000000000..50f7fe8c9
--- /dev/null
+++ b/src/field_fadetransition.c
@@ -0,0 +1,488 @@
+#include "global.h"
+#include "palette.h"
+#include "field_fadetransition.h"
+#include "overworld.h"
+#include "fldeff.h"
+#include "field_weather.h"
+#include "map_preview_screen.h"
+#include "field_player_avatar.h"
+#include "task.h"
+#include "script.h"
+#include "cable_club.h"
+#include "fieldmap.h"
+#include "metatile_behavior.h"
+#include "quest_log.h"
+#include "link.h"
+#include "map_obj_80688E4.h"
+#include "sound.h"
+#include "field_door.h"
+#include "field_screen_effect.h"
+#include "field_map_obj.h"
+#include "field_map_obj_helpers.h"
+#include "map_obj_lock.h"
+#include "start_menu.h"
+#include "constants/songs.h"
+
+void sub_807DF4C(u8 a0);
+void sub_807DFBC(u8 taskId);
+void task_map_chg_seq_0807E20C(u8 taskId);
+void task_map_chg_seq_0807E2CC(u8 taskId);
+void sub_807E31C(u8 taskId);
+void sub_807EC34(u8 taskId);
+void sub_807F204(u8 taskId);
+
+void palette_bg_faded_fill_white(void)
+{
+    CpuFastFill16(RGB_WHITE, gPlttBufferFaded, 0x400);
+}
+
+void palette_bg_faded_fill_black(void)
+{
+    CpuFastFill16(RGB_BLACK, gPlttBufferFaded, 0x400);
+}
+
+void pal_fill_for_maplights(void)
+{
+    switch (sub_80C9DCC(get_map_light_from_warp0(), GetCurrentMapType()))
+    {
+    case 0:
+        palette_bg_faded_fill_black();
+        fade_screen(0, 0);
+        palette_bg_faded_fill_black();
+        break;
+    case 1:
+        palette_bg_faded_fill_white();
+        fade_screen(2, 0);
+        palette_bg_faded_fill_white();
+        break;
+    }
+}
+
+void sub_807DBAC(void)
+{
+    switch (sub_80C9DCC(get_map_light_from_warp0(), GetCurrentMapType()))
+    {
+    case 0:
+        palette_bg_faded_fill_black();
+        fade_screen(0, 3);
+        palette_bg_faded_fill_black();
+        break;
+    case 1:
+        palette_bg_faded_fill_white();
+        fade_screen(2, 3);
+        palette_bg_faded_fill_white();
+        break;
+    }
+}
+
+void sub_807DC00(void)
+{
+    palette_bg_faded_fill_black();
+    fade_screen(0, 0);
+    palette_bg_faded_fill_black();
+}
+
+void sub_807DC18(void)
+{
+    const struct MapHeader *header = warp1_get_mapheader();
+    if (header->regionMapSectionId != gMapHeader.regionMapSectionId && sub_80F8110(header->regionMapSectionId, FALSE))
+        fade_screen(1, 0);
+    else
+    {
+        switch (sub_80C9D7C(GetCurrentMapType(), header->mapType))
+        {
+        case 0:
+            fade_screen(1, 0);
+            break;
+        case 1:
+            fade_screen(3, 0);
+            break;
+        }
+    }
+}
+
+void sub_807DC70(void)
+{
+    switch (sub_80C9D7C(GetCurrentMapType(), warp1_get_mapheader()->mapType))
+    {
+    case 0:
+        fade_screen(1, 3);
+        break;
+    case 1:
+        fade_screen(3, 3);
+        break;
+    }
+}
+
+void sub_807DCB0(bool8 arg)
+{
+    sub_805CB04(!arg);
+}
+
+void task0A_nop_for_a_while(u8 taskId)
+{
+    if (sub_807E418() == TRUE)
+        DestroyTask(taskId);
+}
+
+void sub_807DCE4(void)
+{
+    ScriptContext2_Enable();
+    Overworld_PlaySpecialMapMusic();
+    sub_807DC00();
+    CreateTask(task0A_nop_for_a_while, 10);
+}
+
+void task0A_asap_script_env_2_enable_and_set_ctx_running(u8 taskId)
+{
+    if (sub_807E418() == TRUE)
+    {
+        DestroyTask(taskId);
+        EnableBothScriptContexts();
+    }
+}
+
+void FieldCallback_ReturnToEventScript2(void)
+{
+    ScriptContext2_Enable();
+    Overworld_PlaySpecialMapMusic();
+    sub_807DC00();
+    CreateTask(task0A_asap_script_env_2_enable_and_set_ctx_running, 10);
+}
+
+void sub_807DD44(void)
+{
+    ScriptContext2_Enable();
+    sub_807DC00();
+    CreateTask(task0A_asap_script_env_2_enable_and_set_ctx_running, 10);
+}
+
+void task_mpl_807DD60(u8 taskId)
+{
+    struct Task *task = &gTasks[taskId];
+    switch (task->data[0])
+    {
+    case 0:
+        task->data[1] = sub_8081150();
+        task->data[0]++;
+        break;
+    case 1:
+        if (gTasks[task->data[1]].isActive != TRUE)
+        {
+            pal_fill_for_maplights();
+            task->data[0]++;
+        }
+        break;
+    case 2:
+        if (sub_807E418() == TRUE)
+        {
+            ScriptContext2_Disable();
+            DestroyTask(taskId);
+        }
+        break;
+    }
+}
+
+void sub_807DDD0(void)
+{
+    ScriptContext2_Enable();
+    Overworld_PlaySpecialMapMusic();
+    palette_bg_faded_fill_black();
+    CreateTask(task_mpl_807DD60, 10);
+}
+
+void sub_807DDF0(u8 taskId)
+{
+    struct Task *task = &gTasks[taskId];
+    switch (task->data[0])
+    {
+    case 0:
+        sub_800AB9C();
+        task->data[0]++;
+        break;
+    case 1:
+        if (IsLinkTaskFinished())
+        {
+            pal_fill_for_maplights();
+            task->data[0]++;
+        }
+        break;
+    case 2:
+        if (sub_807E418() == TRUE)
+        {
+            sub_8009FE8();
+            ScriptContext2_Disable();
+            DestroyTask(taskId);
+        }
+        break;
+    }
+}
+
+void sub_807DE58(void)
+{
+    ScriptContext2_Enable();
+    Overworld_PlaySpecialMapMusic();
+    palette_bg_faded_fill_black();
+    CreateTask(sub_807DDF0, 10);
+}
+
+void sub_807DE78(bool8 a0)
+{
+    s16 x, y;
+    u32 behavior;
+    TaskFunc func;
+
+    PlayerGetDestCoords(&x, &y);
+    behavior = MapGridGetMetatileBehaviorAt(x, y);
+    if (MetatileBehavior_IsWarpDoor_2(behavior) == TRUE)
+    {
+        func = sub_807DFBC;
+        switch (sub_80C9DCC(get_map_light_from_warp0(), GetCurrentMapType()))
+        {
+        case 0:
+            palette_bg_faded_fill_black();
+            break;
+        case 1:
+            palette_bg_faded_fill_white();
+            break;
+        }
+    }
+    else
+    {
+        sub_807DF4C(a0);
+        if (MetatileBehavior_IsCaveDoor(behavior) == TRUE)
+            func = task_map_chg_seq_0807E20C;
+        else if (MetatileBehavior_IsUnknownWarp6C_to_6F(behavior) == TRUE)
+        {
+            u8 tmp = gUnknown_2031DE0;
+            func = task_map_chg_seq_0807E2CC;
+            if (!tmp)
+                func = sub_807EC34;
+        }
+        else
+            func = task_map_chg_seq_0807E2CC;
+    }
+    gUnknown_2031DE0 = FALSE;
+    CreateTask(func, 10);
+}
+
+void sub_807DF4C(bool8 a0)
+{
+    if (!a0)
+        pal_fill_for_maplights();
+    else
+        sub_807DC00();
+}
+
+void sub_807DF64(void)
+{
+    Overworld_PlaySpecialMapMusic();
+    sub_8111CF0();
+    sub_807DE78(FALSE);
+    ScriptContext2_Enable();
+}
+
+void sub_807DF7C(void)
+{
+    Overworld_PlaySpecialMapMusic();
+    sub_8111CF0();
+    sub_807DE78(TRUE);
+    ScriptContext2_Enable();
+}
+
+void sub_807DF94(void)
+{
+    Overworld_PlaySpecialMapMusic();
+    pal_fill_for_maplights();
+    sub_8111CF0();
+    PlaySE(SE_RU_GASHIN);
+    CreateTask(sub_807E31C, 10);
+    ScriptContext2_Enable();
+}
+
+void sub_807DFBC(u8 taskId)
+{
+    struct Task * task = &gTasks[taskId];
+    s16 *x = &task->data[2];
+    s16 *y = &task->data[3];
+
+    if (task->data[0] == 0)
+        task->data[0] = 5;
+
+    switch (task->data[0])
+    {
+    case 0: // Never reached
+        sub_807DCB0(0);
+        player_bitmagic();
+        PlayerGetDestCoords(x, y);
+        FieldSetDoorOpened(*x, *y);
+        task->data[0] = 1;
+        break;
+    case 5:
+        sub_807DCB0(0);
+        player_bitmagic();
+        sub_807F114();
+        sub_807DBAC();
+        task->data[0] = 6;
+        break;
+    case 6:
+        task->data[15]++;
+        if (task->data[15] == 25)
+        {
+            PlayerGetDestCoords(x, y);
+            PlaySE(GetDoorSoundEffect(*x, *y));
+            FieldAnimateDoorOpen(*x, *y);
+            task->data[0] = 7;
+        }
+        break;
+    case 7:
+        if (!FieldIsDoorAnimationRunning())
+        {
+            PlayerGetDestCoords(&task->data[12], &task->data[13]);
+            sub_807DCB0(TRUE);
+            FieldObjectSetHeldMovement(&gMapObjects[GetFieldObjectIdByLocalIdAndMap(0xFF, 0, 0)], 16);
+            task->data[0] = 8;
+        }
+        break;
+    case 8:
+        task->data[14]++;
+        if (task->data[14] == 14)
+        {
+            FieldAnimateDoorClose(task->data[12], task->data[13]);
+            task->data[0] = 9;
+        }
+        break;
+    case 9:
+        if (sub_807E418() && walkrun_is_standing_still() && !FieldIsDoorAnimationRunning() && !FuncIsActiveTask(sub_807F204))
+        {
+            FieldObjectClearHeldMovementIfFinished(&gMapObjects[GetFieldObjectIdByLocalIdAndMap(0xFF, 0, 0)]);
+            task->data[0] = 4;
+        }
+        break;
+    // Legacy RS
+    case 1:
+        if (sub_807E418())
+        {
+            sub_807DCB0(TRUE);
+            FieldObjectSetHeldMovement(&gMapObjects[GetFieldObjectIdByLocalIdAndMap(0xFF, 0, 0)], 16);
+            task->data[0] = 2;
+        }
+        break;
+    case 2:
+        if (walkrun_is_standing_still())
+        {
+            task->data[1] = FieldAnimateDoorClose(*x, *y);
+            FieldObjectClearHeldMovementIfFinished(&gMapObjects[GetFieldObjectIdByLocalIdAndMap(0xFF, 0, 0)]);
+            task->data[0] = 3;
+        }
+        break;
+    case 3:
+        if (task->data[1] < 0 || gTasks[task->data[1]].isActive != TRUE)
+            task->data[0] = 4;
+        break;
+    case 4:
+        UnfreezeMapObjects();
+        ScriptContext2_Disable();
+        DestroyTask(taskId);
+        break;
+    }
+}
+
+void task_map_chg_seq_0807E20C(u8 taskId)
+{
+    struct Task * task = &gTasks[taskId];
+    s16 *x = &task->data[2];
+    s16 *y = &task->data[3];
+
+    switch (task->data[0])
+    {
+    case 0:
+        sub_807DCB0(0);
+        player_bitmagic();
+        PlayerGetDestCoords(x, y);
+        task->data[0] = 1;
+        break;
+    case 1:
+        if (sub_807E418())
+        {
+            sub_807DCB0(TRUE);
+            FieldObjectSetHeldMovement(&gMapObjects[GetFieldObjectIdByLocalIdAndMap(0xFF, 0, 0)], sub_8063F84(GetPlayerFacingDirection()));
+            task->data[0] = 2;
+        }
+        break;
+    case 2:
+        if (walkrun_is_standing_still())
+        {
+            task->data[0] = 3;
+        }
+        break;
+    case 3:
+        UnfreezeMapObjects();
+        ScriptContext2_Disable();
+        DestroyTask(taskId);
+        break;
+    }
+}
+
+void task_map_chg_seq_0807E2CC(u8 taskId)
+{
+    switch (gTasks[taskId].data[0])
+    {
+    case 0:
+        player_bitmagic();
+        ScriptContext2_Enable();
+        gTasks[taskId].data[0]++;
+        break;
+    case 1:
+        if (sub_807E418())
+        {
+            UnfreezeMapObjects();
+            ScriptContext2_Disable();
+            DestroyTask(taskId);
+        }
+        break;
+    }
+}
+
+void sub_807E31C(u8 taskId)
+{
+    switch (gTasks[taskId].data[0])
+    {
+    case 0:
+        player_bitmagic();
+        ScriptContext2_Enable();
+        sub_805DC04();
+        gTasks[taskId].data[0]++;
+        break;
+    case 1:
+        if (sub_807E418() && sub_805DC24() != TRUE)
+        {
+            UnfreezeMapObjects();
+            ScriptContext2_Disable();
+            DestroyTask(taskId);
+        }
+        break;
+    }
+}
+
+void sub_807E378(u8 taskId)
+{
+    if (sub_807E418() == TRUE)
+    {
+        DestroyTask(taskId);
+        CreateTask(sub_806F1F0, 80);
+    }
+}
+
+void sub_807E3A0(void)
+{
+    sub_807DC00();
+    CreateTask(sub_807E378, 80);
+    ScriptContext2_Enable();
+}
+
+bool32 sub_807E3BC(void)
+{
+    sub_806F1D4();
+    return FALSE;
+}