through sub_80C3400

2 files changed, 201 insertions, 526 deletions

diff --git a/asm/region_map.s b/asm/region_map.s
index 429f77de8..10f8c83f4 100644
--- a/asm/region_map.s
+++ b/asm/region_map.s
@@ -5,522 +5,6 @@
 
 	.text
 
-	thumb_func_start sub_80C3008
-sub_80C3008: @ 80C3008
-	push {r4-r6,lr}
-	adds r4, r0, 0
-	adds r5, r1, 0
-	lsls r4, 16
-	lsrs r4, 16
-	lsls r5, 16
-	lsrs r5, 16
-	ldr r6, _080C3090 @ =gUnknown_20399E4
-	movs r0, 0x92
-	lsls r0, 1
-	bl AllocZeroed
-	adds r1, r0, 0
-	str r1, [r6]
-	ldr r0, _080C3094 @ =gUnknown_83EF4E0
-	adds r1, 0x24
-	bl LZ77UnCompWram
-	ldr r0, [r6]
-	strh r4, [r0, 0x20]
-	strh r5, [r0, 0x22]
-	bl sub_80C3D40
-	ldr r1, [r6]
-	movs r2, 0
-	ldrsh r0, [r1, r2]
-	lsls r0, 3
-	adds r0, 0x24
-	strh r0, [r1, 0x4]
-	movs r3, 0x2
-	ldrsh r0, [r1, r3]
-	lsls r0, 3
-	adds r0, 0x24
-	strh r0, [r1, 0x6]
-	ldr r0, _080C3098 @ =sub_80C31C0
-	str r0, [r1, 0x10]
-	ldrb r0, [r1, 0x14]
-	bl sub_80C35DC
-	ldr r1, [r6]
-	lsls r0, 24
-	lsrs r0, 24
-	strh r0, [r1, 0x16]
-	bl sub_80C0E20
-	lsls r0, 24
-	lsrs r0, 24
-	ldr r1, [r6]
-	movs r4, 0x2
-	ldrsh r2, [r1, r4]
-	movs r4, 0
-	ldrsh r3, [r1, r4]
-	movs r1, 0x1
-	bl sub_80C4164
-	lsls r0, 24
-	lsrs r0, 24
-	bl sub_80C3878
-	ldr r1, [r6]
-	lsls r0, 24
-	lsrs r0, 24
-	strh r0, [r1, 0x18]
-	bl sub_80C309C
-	pop {r4-r6}
-	pop {r0}
-	bx r0
-	.align 2, 0
-_080C3090: .4byte gUnknown_20399E4
-_080C3094: .4byte gUnknown_83EF4E0
-_080C3098: .4byte sub_80C31C0
-	thumb_func_end sub_80C3008
-
-	thumb_func_start sub_80C309C
-sub_80C309C: @ 80C309C
-	push {r4-r6,lr}
-	sub sp, 0x40
-	ldr r6, _080C3134 @ =gUnknown_20399E4
-	ldr r2, [r6]
-	adds r0, r2, 0
-	adds r0, 0x24
-	str r0, [sp, 0x30]
-	movs r1, 0x80
-	lsls r1, 1
-	add r5, sp, 0x30
-	str r1, [r5, 0x4]
-	ldrh r0, [r2, 0x20]
-	lsls r0, 16
-	orrs r0, r1
-	str r0, [r5, 0x4]
-	ldr r0, _080C3138 @ =gUnknown_83EF25C
-	str r0, [sp, 0x38]
-	ldrh r3, [r2, 0x22]
-	ldr r1, _080C313C @ =0xffff0000
-	add r4, sp, 0x38
-	ldr r0, [r4, 0x4]
-	ands r0, r1
-	orrs r0, r3
-	str r0, [r4, 0x4]
-	ldrh r0, [r2, 0x20]
-	add r1, sp, 0x18
-	movs r3, 0
-	strh r0, [r1]
-	ldrh r2, [r2, 0x22]
-	mov r0, sp
-	adds r0, 0x1A
-	strh r2, [r0]
-	ldr r0, _080C3140 @ =gUnknown_83F1C3C
-	str r0, [sp, 0x1C]
-	ldr r0, _080C3144 @ =gUnknown_83F1C50
-	str r0, [sp, 0x20]
-	str r3, [sp, 0x24]
-	ldr r0, _080C3148 @ =gDummySpriteAffineAnimTable
-	str r0, [sp, 0x28]
-	ldr r0, _080C314C @ =sub_80C2FC0
-	str r0, [sp, 0x2C]
-	mov r0, sp
-	movs r2, 0x18
-	bl memcpy
-	adds r0, r5, 0
-	bl LoadSpriteSheet
-	adds r0, r4, 0
-	bl LoadSpritePalette
-	ldr r0, [r6]
-	movs r2, 0x4
-	ldrsh r1, [r0, r2]
-	movs r3, 0x6
-	ldrsh r2, [r0, r3]
-	mov r0, sp
-	movs r3, 0
-	bl CreateSprite
-	lsls r0, 24
-	lsrs r0, 24
-	ldr r2, [r6]
-	lsls r1, r0, 4
-	adds r1, r0
-	lsls r1, 2
-	ldr r0, _080C3150 @ =gSprites
-	adds r1, r0
-	str r1, [r2, 0x1C]
-	movs r0, 0x1
-	bl sub_80C3154
-	add sp, 0x40
-	pop {r4-r6}
-	pop {r0}
-	bx r0
-	.align 2, 0
-_080C3134: .4byte gUnknown_20399E4
-_080C3138: .4byte gUnknown_83EF25C
-_080C313C: .4byte 0xffff0000
-_080C3140: .4byte gUnknown_83F1C3C
-_080C3144: .4byte gUnknown_83F1C50
-_080C3148: .4byte gDummySpriteAffineAnimTable
-_080C314C: .4byte sub_80C2FC0
-_080C3150: .4byte gSprites
-	thumb_func_end sub_80C309C
-
-	thumb_func_start sub_80C3154
-sub_80C3154: @ 80C3154
-	lsls r0, 24
-	lsrs r0, 24
-	ldr r1, _080C3174 @ =gUnknown_20399E4
-	ldr r1, [r1]
-	ldr r2, [r1, 0x1C]
-	adds r2, 0x3E
-	movs r1, 0x1
-	ands r0, r1
-	lsls r0, 2
-	ldrb r3, [r2]
-	movs r1, 0x5
-	negs r1, r1
-	ands r1, r3
-	orrs r1, r0
-	strb r1, [r2]
-	bx lr
-	.align 2, 0
-_080C3174: .4byte gUnknown_20399E4
-	thumb_func_end sub_80C3154
-
-	thumb_func_start sub_80C3178
-sub_80C3178: @ 80C3178
-	ldr r0, _080C3184 @ =gUnknown_20399E4
-	ldr r1, [r0]
-	movs r0, 0
-	strb r0, [r1, 0xE]
-	bx lr
-	.align 2, 0
-_080C3184: .4byte gUnknown_20399E4
-	thumb_func_end sub_80C3178
-
-	thumb_func_start sub_80C3188
-sub_80C3188: @ 80C3188
-	push {r4,lr}
-	ldr r4, _080C31BC @ =gUnknown_20399E4
-	ldr r0, [r4]
-	ldr r0, [r0, 0x1C]
-	cmp r0, 0
-	beq _080C31A8
-	bl DestroySprite
-	ldr r0, [r4]
-	ldrh r0, [r0, 0x20]
-	bl FreeSpriteTilesByTag
-	ldr r0, [r4]
-	ldrh r0, [r0, 0x22]
-	bl FreeSpritePaletteByTag
-_080C31A8:
-	ldr r0, [r4]
-	cmp r0, 0
-	beq _080C31B6
-	bl Free
-	movs r0, 0
-	str r0, [r4]
-_080C31B6:
-	pop {r4}
-	pop {r0}
-	bx r0
-	.align 2, 0
-_080C31BC: .4byte gUnknown_20399E4
-	thumb_func_end sub_80C3188
-
-	thumb_func_start sub_80C31C0
-sub_80C31C0: @ 80C31C0
-	push {r4-r6,lr}
-	movs r5, 0
-	ldr r3, _080C3278 @ =gUnknown_20399E4
-	ldr r4, [r3]
-	strh r5, [r4, 0x8]
-	strh r5, [r4, 0xA]
-	ldr r2, _080C327C @ =gMain
-	ldrh r1, [r2, 0x2C]
-	movs r0, 0x40
-	ands r0, r1
-	adds r6, r3, 0
-	cmp r0, 0
-	beq _080C31E8
-	movs r1, 0x2
-	ldrsh r0, [r4, r1]
-	cmp r0, 0
-	ble _080C31E8
-	ldr r0, _080C3280 @ =0x0000fffe
-	strh r0, [r4, 0xA]
-	movs r5, 0x1
-_080C31E8:
-	ldrh r1, [r2, 0x2C]
-	movs r0, 0x80
-	ands r0, r1
-	cmp r0, 0
-	beq _080C3202
-	ldr r1, [r6]
-	movs r3, 0x2
-	ldrsh r0, [r1, r3]
-	cmp r0, 0xD
-	bgt _080C3202
-	movs r0, 0x2
-	strh r0, [r1, 0xA]
-	movs r5, 0x1
-_080C3202:
-	ldrh r1, [r2, 0x2C]
-	movs r0, 0x10
-	ands r0, r1
-	cmp r0, 0
-	beq _080C321C
-	ldr r1, [r6]
-	movs r3, 0
-	ldrsh r0, [r1, r3]
-	cmp r0, 0x14
-	bgt _080C321C
-	movs r0, 0x2
-	strh r0, [r1, 0x8]
-	movs r5, 0x1
-_080C321C:
-	ldrh r1, [r2, 0x2C]
-	movs r0, 0x20
-	ands r0, r1
-	cmp r0, 0
-	beq _080C3236
-	ldr r1, [r6]
-	movs r3, 0
-	ldrsh r0, [r1, r3]
-	cmp r0, 0
-	ble _080C3236
-	ldr r0, _080C3280 @ =0x0000fffe
-	strh r0, [r1, 0x8]
-	movs r5, 0x1
-_080C3236:
-	ldrh r3, [r2, 0x2E]
-	movs r0, 0x1
-	ands r0, r3
-	cmp r0, 0
-	beq _080C328C
-	movs r5, 0x4
-	ldr r0, [r6]
-	ldr r1, [r0]
-	ldr r0, _080C3284 @ =0x000d0015
-	cmp r1, r0
-	bne _080C3254
-	movs r0, 0xF0
-	bl PlaySE
-	movs r5, 0x6
-_080C3254:
-	ldr r0, [r6]
-	ldr r1, [r0]
-	ldr r0, _080C3288 @ =0x000b0015
-	cmp r1, r0
-	bne _080C331A
-	movs r0, 0
-	bl sub_80C0E04
-	lsls r0, 24
-	lsrs r0, 24
-	cmp r0, 0x1
-	bne _080C331A
-	movs r0, 0xF0
-	bl PlaySE
-	movs r5, 0x5
-	b _080C331A
-	.align 2, 0
-_080C3278: .4byte gUnknown_20399E4
-_080C327C: .4byte gMain
-_080C3280: .4byte 0x0000fffe
-_080C3284: .4byte 0x000d0015
-_080C3288: .4byte 0x000b0015
-_080C328C:
-	movs r0, 0x2
-	ands r0, r3
-	cmp r0, 0
-	bne _080C3318
-	ldrh r1, [r2, 0x30]
-	movs r0, 0x8
-	ands r0, r1
-	cmp r0, 0
-	beq _080C3300
-	bl sub_80C3418
-	bl sub_80C0E20
-	lsls r0, 24
-	lsrs r0, 24
-	ldr r4, _080C32FC @ =gUnknown_20399E4
-	ldr r1, [r4]
-	movs r5, 0x2
-	ldrsh r2, [r1, r5]
-	movs r5, 0
-	ldrsh r3, [r1, r5]
-	movs r1, 0
-	bl sub_80C4164
-	ldr r1, [r4]
-	lsls r0, 24
-	lsrs r0, 24
-	strh r0, [r1, 0x14]
-	bl sub_80C35DC
-	ldr r1, [r4]
-	lsls r0, 24
-	lsrs r0, 24
-	strh r0, [r1, 0x16]
-	bl sub_80C0E20
-	lsls r0, 24
-	lsrs r0, 24
-	ldr r1, [r4]
-	movs r3, 0x2
-	ldrsh r2, [r1, r3]
-	movs r5, 0
-	ldrsh r3, [r1, r5]
-	movs r1, 0x1
-	bl sub_80C4164
-	lsls r0, 24
-	lsrs r0, 24
-	bl sub_80C3878
-	ldr r1, [r4]
-	lsls r0, 24
-	lsrs r0, 24
-	strh r0, [r1, 0x18]
-	movs r0, 0x3
-	b _080C332C
-	.align 2, 0
-_080C32FC: .4byte gUnknown_20399E4
-_080C3300:
-	movs r0, 0x4
-	ands r0, r3
-	cmp r0, 0
-	beq _080C331A
-	ldr r0, _080C3334 @ =gUnknown_20399D4
-	ldr r0, [r0]
-	ldr r1, _080C3338 @ =0x000047bc
-	adds r0, r1
-	ldr r1, [r0]
-	ldr r0, _080C333C @ =CB2_ReturnToField
-	cmp r1, r0
-	bne _080C331A
-_080C3318:
-	movs r5, 0x6
-_080C331A:
-	cmp r5, 0x1
-	bne _080C332A
-	ldr r0, _080C3340 @ =gUnknown_20399E4
-	ldr r1, [r0]
-	movs r0, 0x4
-	strh r0, [r1, 0xC]
-	ldr r0, _080C3344 @ =sub_80C3348
-	str r0, [r1, 0x10]
-_080C332A:
-	adds r0, r5, 0
-_080C332C:
-	pop {r4-r6}
-	pop {r1}
-	bx r1
-	.align 2, 0
-_080C3334: .4byte gUnknown_20399D4
-_080C3338: .4byte 0x000047bc
-_080C333C: .4byte CB2_ReturnToField
-_080C3340: .4byte gUnknown_20399E4
-_080C3344: .4byte sub_80C3348
-	thumb_func_end sub_80C31C0
-
-	thumb_func_start sub_80C3348
-sub_80C3348: @ 80C3348
-	push {r4,r5,lr}
-	ldr r4, _080C3358 @ =gUnknown_20399E4
-	ldr r1, [r4]
-	ldrh r0, [r1, 0xC]
-	cmp r0, 0
-	beq _080C335C
-	movs r0, 0x2
-	b _080C33F4
-	.align 2, 0
-_080C3358: .4byte gUnknown_20399E4
-_080C335C:
-	movs r2, 0x8
-	ldrsh r0, [r1, r2]
-	cmp r0, 0
-	ble _080C336A
-	ldrh r0, [r1]
-	adds r0, 0x1
-	strh r0, [r1]
-_080C336A:
-	ldr r1, [r4]
-	movs r3, 0x8
-	ldrsh r0, [r1, r3]
-	cmp r0, 0
-	bge _080C337A
-	ldrh r0, [r1]
-	subs r0, 0x1
-	strh r0, [r1]
-_080C337A:
-	ldr r1, [r4]
-	movs r5, 0xA
-	ldrsh r0, [r1, r5]
-	cmp r0, 0
-	ble _080C338A
-	ldrh r0, [r1, 0x2]
-	adds r0, 0x1
-	strh r0, [r1, 0x2]
-_080C338A:
-	ldr r1, [r4]
-	movs r2, 0xA
-	ldrsh r0, [r1, r2]
-	cmp r0, 0
-	bge _080C339A
-	ldrh r0, [r1, 0x2]
-	subs r0, 0x1
-	strh r0, [r1, 0x2]
-_080C339A:
-	bl sub_80C0E20
-	lsls r0, 24
-	lsrs r0, 24
-	ldr r1, [r4]
-	movs r3, 0x2
-	ldrsh r2, [r1, r3]
-	movs r5, 0
-	ldrsh r3, [r1, r5]
-	movs r1, 0
-	bl sub_80C4164
-	ldr r1, [r4]
-	lsls r0, 24
-	lsrs r0, 24
-	strh r0, [r1, 0x14]
-	bl sub_80C35DC
-	ldr r1, [r4]
-	lsls r0, 24
-	lsrs r0, 24
-	strh r0, [r1, 0x16]
-	bl sub_80C0E20
-	lsls r0, 24
-	lsrs r0, 24
-	ldr r1, [r4]
-	movs r3, 0x2
-	ldrsh r2, [r1, r3]
-	movs r5, 0
-	ldrsh r3, [r1, r5]
-	movs r1, 0x1
-	bl sub_80C4164
-	lsls r0, 24
-	lsrs r0, 24
-	bl sub_80C3878
-	ldr r1, [r4]
-	lsls r0, 24
-	lsrs r0, 24
-	strh r0, [r1, 0x18]
-	ldr r0, _080C33FC @ =sub_80C31C0
-	str r0, [r1, 0x10]
-	movs r0, 0x3
-_080C33F4:
-	pop {r4,r5}
-	pop {r1}
-	bx r1
-	.align 2, 0
-_080C33FC: .4byte sub_80C31C0
-	thumb_func_end sub_80C3348
-
-	thumb_func_start sub_80C3400
-sub_80C3400: @ 80C3400
-	push {lr}
-	ldr r0, _080C3414 @ =gUnknown_20399E4
-	ldr r0, [r0]
-	ldr r0, [r0, 0x10]
-	bl _call_via_r0
-	lsls r0, 24
-	lsrs r0, 24
-	pop {r1}
-	bx r1
-	.align 2, 0
-_080C3414: .4byte gUnknown_20399E4
-	thumb_func_end sub_80C3400
-
 	thumb_func_start sub_80C3418
 sub_80C3418: @ 80C3418
 	push {r4,r5,lr}
diff --git a/src/region_map.c b/src/region_map.c
index de12b4de2..8ea4c9bb6 100644
--- a/src/region_map.c
+++ b/src/region_map.c
@@ -146,13 +146,20 @@ struct UnkStruct_20399E4
 {
     s16 field_000;
     s16 field_002;
-    u8 filler_004[4];
-    u16 field_008;
-    u16 field_00A;
+    u16 field_004;
+    u16 field_006;
+    s16 field_008;
+    s16 field_00A;
     u16 field_00C;
-    u8 filler_00E[14];
+    u8 field_00E;
+    u8 (*field_010)(void);
+    u16 field_014;
+    u16 field_016;
+    u16 field_018;
     struct Sprite * field_01C;
-    u8 filler_020[0x104];
+    u16 field_020;
+    u16 field_022;
+    u16 field_024[0x080];
 };
 
 EWRAM_DATA struct UnkStruct_20399D4 * gUnknown_20399D4 = NULL;
@@ -216,12 +223,19 @@ void sub_80C2C1C(u8 taskId);
 void sub_80C2C7C(u8 taskId);
 bool8 sub_80C2E1C(void);
 void sub_80C3008(u16 a0, u16 a1);
-void sub_80C3154(u8 a0);
+void sub_80C309C(void);
+void sub_80C3154(bool8 a0);
 void sub_80C3178(void);
 void sub_80C3188(void);
+u8 sub_80C31C0(void);
+u8 sub_80C3348(void);
 u8 sub_80C3400(void);
+void sub_80C3418(void);
+u8 sub_80C3878(u8 a0);
 u16 sub_80C3520(void);
+u8 sub_80C35DC(u8 a0);
 u8 sub_80C3AC8(u8 a0);
+void sub_80C3D40(void);
 u8 sub_80C4164(u8 a0, u8 a1, s16 a2, s16 a3);
 void sub_80C41D8(u16 a0, u16 a1);
 void sub_80C4324(u8 a0);
@@ -251,11 +265,13 @@ u16 sub_80C3580(void);
 
 #include "data/text/map_section_names.h"
 extern const u16 gUnknown_83EF23C[];
+extern const u16 gUnknown_83EF25C[];
 extern const u16 gUnknown_83EF2DC[];
 extern const u16 gUnknown_83EF384[];
 extern const u16 gUnknown_83EF3A4[];
 extern const u32 gUnknown_83EF3C4[];
 extern const u32 gUnknown_83EF450[];
+extern const u32 gUnknown_83EF4E0[];
 extern const u32 gUnknown_83EF61C[];
 extern const u32 gUnknown_83F0330[];
 extern const u32 gUnknown_83F0E0C[];
@@ -289,6 +305,8 @@ extern const struct UnkStruct_83F1B3C gUnknown_83F1B3C[];
 extern const struct OamData gUnknown_83F1C20;
 extern const union AnimCmd *const gUnknown_83F1C30[];
 extern const struct UnkStruct_80C4CF0 gUnknown_83F1C34;
+extern const struct OamData gUnknown_83F1C3C;
+extern const union AnimCmd *const gUnknown_83F1C50[];
 extern const u8 *const gUnknown_83F1CAC[];
 
 static void RegionMap_DarkenPalette(u16 *pal, u16 size, u16 tint)
@@ -558,7 +576,7 @@ void sub_80C04E4(u8 taskId)
             sub_80C4E74(gUnknown_8418E8B);
             sub_80C4ED0(FALSE);
             sub_80C4324(0);
-            sub_80C3154(0);
+            sub_80C3154(FALSE);
             sub_80C48BC(sub_80C0E20(), 25, 0);
             sub_80C4960(sub_80C0E20(), 25, 0);
         }
@@ -580,6 +598,8 @@ void sub_80C04E4(u8 taskId)
         case 1:
             sub_80C3178();
             break;
+        case 2:
+            break;
         case 3:
             sub_80C0B18();
             sub_80C0BB0();
@@ -1051,7 +1071,7 @@ void sub_80C1098(u8 taskId)
         }
         break;
     case 12:
-        sub_80C3154(0);
+        sub_80C3154(FALSE);
         gUnknown_20399D8->field_1CC8++;
         break;
     default:
@@ -1742,7 +1762,7 @@ void sub_80C267C(u8 taskId)
         break;
     case 7:
         sub_80C4324(0);
-        sub_80C3154(0);
+        sub_80C3154(FALSE);
         gUnknown_20399E0->field_CCC++;
         break;
     case 8:
@@ -1922,7 +1942,7 @@ void sub_80C2C7C(u8 taskId)
     case 3:
         sub_80C22C4(6, FALSE);
         sub_80C4324(1);
-        sub_80C3154(1);
+        sub_80C3154(TRUE);
         sub_80C4960(255, 25, 1);
         sub_80C48BC(255, 25, 1);
         gUnknown_20399E0->field_CCE = 0;
@@ -2032,3 +2052,174 @@ void sub_80C2FC0(struct Sprite * sprite)
         gUnknown_20399E4->field_01C->pos1.y = 8 * gUnknown_20399E4->field_002 + 36;
     }
 }
+
+void sub_80C3008(u16 a0, u16 a1)
+{
+    gUnknown_20399E4 = AllocZeroed(sizeof(struct UnkStruct_20399E4));
+    LZ77UnCompWram(gUnknown_83EF4E0, gUnknown_20399E4->field_024);
+    gUnknown_20399E4->field_020 = a0;
+    gUnknown_20399E4->field_022 = a1;
+    sub_80C3D40();
+    gUnknown_20399E4->field_004 = 8 * gUnknown_20399E4->field_000 + 36;
+    gUnknown_20399E4->field_006 = 8 * gUnknown_20399E4->field_002 + 36;
+    gUnknown_20399E4->field_010 = sub_80C31C0;
+    gUnknown_20399E4->field_016 = sub_80C35DC(gUnknown_20399E4->field_014);
+    gUnknown_20399E4->field_018 = sub_80C3878(sub_80C4164(sub_80C0E20(), 1, gUnknown_20399E4->field_002, gUnknown_20399E4->field_000));
+    sub_80C309C();
+}
+
+void sub_80C309C(void)
+{
+    u8 spriteId;
+    struct SpriteSheet spriteSheet = {
+        .data = gUnknown_20399E4->field_024,
+        .size = 0x100,
+        .tag = gUnknown_20399E4->field_020
+    };
+    struct SpritePalette spritePalette = {
+        .data = gUnknown_83EF25C,
+        .tag = gUnknown_20399E4->field_022
+    };
+    struct SpriteTemplate template = {
+        .tileTag = gUnknown_20399E4->field_020,
+        .paletteTag = gUnknown_20399E4->field_022,
+        .oam = &gUnknown_83F1C3C,
+        .anims = gUnknown_83F1C50,
+        .images = NULL,
+        .affineAnims = gDummySpriteAffineAnimTable,
+        .callback = sub_80C2FC0
+    };
+
+    LoadSpriteSheet(&spriteSheet);
+    LoadSpritePalette(&spritePalette);
+    spriteId = CreateSprite(&template, gUnknown_20399E4->field_004, gUnknown_20399E4->field_006, 0);
+    gUnknown_20399E4->field_01C = &gSprites[spriteId];
+    sub_80C3154(TRUE);
+}
+
+void sub_80C3154(bool8 a0)
+{
+    gUnknown_20399E4->field_01C->invisible = a0;
+}
+
+void sub_80C3178(void)
+{
+    gUnknown_20399E4->field_00E = 0;
+}
+
+void sub_80C3188(void)
+{
+    if (gUnknown_20399E4->field_01C != NULL)
+    {
+        DestroySprite(gUnknown_20399E4->field_01C);
+        FreeSpriteTilesByTag(gUnknown_20399E4->field_020);
+        FreeSpritePaletteByTag(gUnknown_20399E4->field_022);
+    }
+    FREE_IF_NOT_NULL(gUnknown_20399E4);
+}
+
+u8 sub_80C31C0(void)
+{
+    u8 ret = 0;
+    gUnknown_20399E4->field_008 = 0;
+    gUnknown_20399E4->field_00A = 0;
+
+    if (JOY_HELD(DPAD_UP))
+    {
+        if (gUnknown_20399E4->field_002 > 0)
+        {
+            gUnknown_20399E4->field_00A = -2;
+            ret = 1;
+        }
+    }
+    if (JOY_HELD(DPAD_DOWN))
+    {
+        if (gUnknown_20399E4->field_002 < 14)
+        {
+            gUnknown_20399E4->field_00A = 2;
+            ret = 1;
+        }
+    }
+    if (JOY_HELD(DPAD_RIGHT))
+    {
+        if (gUnknown_20399E4->field_000 < 21)
+        {
+            gUnknown_20399E4->field_008 = 2;
+            ret = 1;
+        }
+    }
+    if (JOY_HELD(DPAD_LEFT))
+    {
+        if (gUnknown_20399E4->field_000 > 0)
+        {
+            gUnknown_20399E4->field_008 = -2;
+            ret = 1;
+        }
+    }
+    if (JOY_NEW(A_BUTTON))
+    {
+        ret = 4;
+        if (gUnknown_20399E4->field_000 == 21 && gUnknown_20399E4->field_002 == 13)
+        {
+            PlaySE(SE_W063B);
+            ret = 6;
+        }
+        if (gUnknown_20399E4->field_000 == 21 && gUnknown_20399E4->field_002 == 11)
+        {
+            if (sub_80C0E04(0) == TRUE)
+            {
+                PlaySE(SE_W063B);
+                ret = 5;
+            }
+        }
+    }
+    else if (!JOY_NEW(B_BUTTON))
+    {
+        if (JOY_REPT(START_BUTTON))
+        {
+            sub_80C3418();
+            gUnknown_20399E4->field_014 = sub_80C4164(sub_80C0E20(), 0, gUnknown_20399E4->field_002, gUnknown_20399E4->field_000);
+            gUnknown_20399E4->field_016 = sub_80C35DC(gUnknown_20399E4->field_014);
+            gUnknown_20399E4->field_018 = sub_80C3878(sub_80C4164(sub_80C0E20(), 1, gUnknown_20399E4->field_002, gUnknown_20399E4->field_000));
+            return 3;
+        }
+        else if (JOY_NEW(SELECT_BUTTON) && gUnknown_20399D4->field_47BC == CB2_ReturnToField)
+        {
+            ret = 6;
+        }
+    }
+    else
+    {
+        ret = 6;
+    }
+    if (ret == 1)
+    {
+        gUnknown_20399E4->field_00C = 4;
+        gUnknown_20399E4->field_010 = sub_80C3348;
+    }
+    return ret;
+}
+
+u8 sub_80C3348(void)
+{
+    if (gUnknown_20399E4->field_00C != 0)
+        return 2;
+    if (gUnknown_20399E4->field_008 > 0)
+        gUnknown_20399E4->field_000++;
+    if (gUnknown_20399E4->field_008 < 0)
+        gUnknown_20399E4->field_000--;
+    if (gUnknown_20399E4->field_00A > 0)
+        gUnknown_20399E4->field_002++;
+    if (gUnknown_20399E4->field_00A < 0)
+        gUnknown_20399E4->field_002--;
+    gUnknown_20399E4->field_014 = sub_80C4164(sub_80C0E20(), 0, gUnknown_20399E4->field_002, gUnknown_20399E4->field_000);
+    gUnknown_20399E4->field_016 = sub_80C35DC(gUnknown_20399E4->field_014);
+    gUnknown_20399E4->field_018 = sub_80C3878(sub_80C4164(sub_80C0E20(), 1, gUnknown_20399E4->field_002, gUnknown_20399E4->field_000));
+    gUnknown_20399E4->field_010 = sub_80C31C0;
+    return 3;
+}
+
+u8 sub_80C3400(void)
+{
+    return gUnknown_20399E4->field_010();
+}