union_room_chat_objects

9 files changed, 518 insertions, 690 deletions

diff --git a/asm/union_room_chat.s b/asm/union_room_chat.s
deleted file mode 100644
index 1045cea43..000000000
--- a/asm/union_room_chat.s
+++ /dev/null
@@ -1,475 +0,0 @@
-	.include "asm/macros.inc"
-	.include "constants/constants.inc"
-
-	.syntax unified
-
-	.text
-
-	thumb_func_start sub_812AE70
-sub_812AE70: @ 812AE70
-	push {r4,r5,lr}
-	movs r5, 0
-	ldr r4, _0812AE9C @ =gUnknown_845AF58
-_0812AE76:
-	adds r0, r4, 0
-	bl LoadCompressedSpriteSheet
-	adds r4, 0x8
-	adds r5, 0x1
-	cmp r5, 0x4
-	bls _0812AE76
-	ldr r0, _0812AEA0 @ =gUnknown_845AF80
-	bl LoadSpritePalette
-	ldr r4, _0812AEA4 @ =gUnknown_203B0E8
-	movs r0, 0x18
-	bl Alloc
-	str r0, [r4]
-	cmp r0, 0
-	beq _0812AEA8
-	movs r0, 0x1
-	b _0812AEAA
-	.align 2, 0
-_0812AE9C: .4byte gUnknown_845AF58
-_0812AEA0: .4byte gUnknown_845AF80
-_0812AEA4: .4byte gUnknown_203B0E8
-_0812AEA8:
-	movs r0, 0
-_0812AEAA:
-	pop {r4,r5}
-	pop {r1}
-	bx r1
-	thumb_func_end sub_812AE70
-
-	thumb_func_start sub_812AEB0
-sub_812AEB0: @ 812AEB0
-	push {lr}
-	ldr r0, _0812AEC4 @ =gUnknown_203B0E8
-	ldr r0, [r0]
-	cmp r0, 0
-	beq _0812AEBE
-	bl Free
-_0812AEBE:
-	pop {r0}
-	bx r0
-	.align 2, 0
-_0812AEC4: .4byte gUnknown_203B0E8
-	thumb_func_end sub_812AEB0
-
-	thumb_func_start sub_812AEC8
-sub_812AEC8: @ 812AEC8
-	push {lr}
-	ldr r0, _0812AEF0 @ =gUnknown_845AFC0
-	movs r1, 0xA
-	movs r2, 0x18
-	movs r3, 0
-	bl CreateSprite
-	lsls r0, 24
-	lsrs r0, 24
-	ldr r1, _0812AEF4 @ =gUnknown_203B0E8
-	ldr r2, [r1]
-	lsls r1, r0, 4
-	adds r1, r0
-	lsls r1, 2
-	ldr r0, _0812AEF8 @ =gSprites
-	adds r1, r0
-	str r1, [r2]
-	pop {r0}
-	bx r0
-	.align 2, 0
-_0812AEF0: .4byte gUnknown_845AFC0
-_0812AEF4: .4byte gUnknown_203B0E8
-_0812AEF8: .4byte gSprites
-	thumb_func_end sub_812AEC8
-
-	thumb_func_start sub_812AEFC
-sub_812AEFC: @ 812AEFC
-	ldr r1, _0812AF18 @ =gUnknown_203B0E8
-	ldr r1, [r1]
-	ldr r2, [r1]
-	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
-_0812AF18: .4byte gUnknown_203B0E8
-	thumb_func_end sub_812AEFC
-
-	thumb_func_start sub_812AF1C
-sub_812AF1C: @ 812AF1C
-	push {r4,r5,lr}
-	sub sp, 0x4
-	bl GetCurrentKeyboardPage
-	adds r4, r0, 0
-	lsls r4, 24
-	lsrs r4, 24
-	mov r5, sp
-	adds r5, 0x1
-	mov r0, sp
-	adds r1, r5, 0
-	bl sub_8129700
-	cmp r4, 0x3
-	beq _0812AF5C
-	ldr r4, _0812AF58 @ =gUnknown_203B0E8
-	ldr r0, [r4]
-	ldr r0, [r0]
-	movs r1, 0
-	bl StartSpriteAnim
-	ldr r1, [r4]
-	ldr r2, [r1]
-	mov r0, sp
-	ldrb r0, [r0]
-	lsls r0, 3
-	adds r0, 0xA
-	strh r0, [r2, 0x20]
-	ldr r2, [r1]
-	b _0812AF72
-	.align 2, 0
-_0812AF58: .4byte gUnknown_203B0E8
-_0812AF5C:
-	ldr r4, _0812AF88 @ =gUnknown_203B0E8
-	ldr r0, [r4]
-	ldr r0, [r0]
-	movs r1, 0x2
-	bl StartSpriteAnim
-	ldr r2, [r4]
-	ldr r1, [r2]
-	movs r0, 0x18
-	strh r0, [r1, 0x20]
-	ldr r2, [r2]
-_0812AF72:
-	ldrb r1, [r5]
-	lsls r0, r1, 1
-	adds r0, r1
-	lsls r0, 2
-	adds r0, 0x18
-	strh r0, [r2, 0x22]
-	add sp, 0x4
-	pop {r4,r5}
-	pop {r0}
-	bx r0
-	.align 2, 0
-_0812AF88: .4byte gUnknown_203B0E8
-	thumb_func_end sub_812AF1C
-
-	thumb_func_start sub_812AF8C
-sub_812AF8C: @ 812AF8C
-	push {r4,lr}
-	adds r4, r0, 0
-	lsls r4, 2
-	ldr r0, _0812AFB8 @ =gUnknown_845AC14 + 2
-	adds r4, r0
-	movs r0, 0
-	bl IndexOfSpritePaletteTag
-	adds r1, r0, 0
-	lsls r1, 24
-	lsrs r1, 4
-	ldr r0, _0812AFBC @ =0x01010000
-	adds r1, r0
-	lsrs r1, 16
-	adds r0, r4, 0
-	movs r2, 0x4
-	bl LoadPalette
-	pop {r4}
-	pop {r0}
-	bx r0
-	.align 2, 0
-_0812AFB8: .4byte gUnknown_845AC14 + 2
-_0812AFBC: .4byte 0x01010000
-	thumb_func_end sub_812AF8C
-
-	thumb_func_start sub_812AFC0
-sub_812AFC0: @ 812AFC0
-	push {lr}
-	bl GetCurrentKeyboardPage
-	lsls r0, 24
-	lsrs r0, 24
-	cmp r0, 0x3
-	beq _0812AFE0
-	ldr r0, _0812AFDC @ =gUnknown_203B0E8
-	ldr r0, [r0]
-	ldr r0, [r0]
-	movs r1, 0x1
-	bl StartSpriteAnim
-	b _0812AFEC
-	.align 2, 0
-_0812AFDC: .4byte gUnknown_203B0E8
-_0812AFE0:
-	ldr r0, _0812AFF8 @ =gUnknown_203B0E8
-	ldr r0, [r0]
-	ldr r0, [r0]
-	movs r1, 0x3
-	bl StartSpriteAnim
-_0812AFEC:
-	ldr r0, _0812AFF8 @ =gUnknown_203B0E8
-	ldr r1, [r0]
-	movs r0, 0
-	strh r0, [r1, 0x14]
-	pop {r0}
-	bx r0
-	.align 2, 0
-_0812AFF8: .4byte gUnknown_203B0E8
-	thumb_func_end sub_812AFC0
-
-	thumb_func_start sub_812AFFC
-sub_812AFFC: @ 812AFFC
-	push {r4,lr}
-	ldr r4, _0812B00C @ =gUnknown_203B0E8
-	ldr r1, [r4]
-	ldrh r0, [r1, 0x14]
-	cmp r0, 0x3
-	bls _0812B010
-_0812B008:
-	movs r0, 0
-	b _0812B042
-	.align 2, 0
-_0812B00C: .4byte gUnknown_203B0E8
-_0812B010:
-	adds r0, 0x1
-	strh r0, [r1, 0x14]
-	lsls r0, 16
-	lsrs r0, 16
-	cmp r0, 0x3
-	bls _0812B040
-	bl GetCurrentKeyboardPage
-	lsls r0, 24
-	lsrs r0, 24
-	cmp r0, 0x3
-	beq _0812B034
-	ldr r0, [r4]
-	ldr r0, [r0]
-	movs r1, 0
-	bl StartSpriteAnim
-	b _0812B008
-_0812B034:
-	ldr r0, [r4]
-	ldr r0, [r0]
-	movs r1, 0x2
-	bl StartSpriteAnim
-	b _0812B008
-_0812B040:
-	movs r0, 0x1
-_0812B042:
-	pop {r4}
-	pop {r1}
-	bx r1
-	thumb_func_end sub_812AFFC
-
-	thumb_func_start sub_812B048
-sub_812B048: @ 812B048
-	push {r4,r5,lr}
-	ldr r0, _0812B08C @ =gUnknown_845AFE0
-	movs r1, 0x4C
-	movs r2, 0x98
-	movs r3, 0x2
-	bl CreateSprite
-	lsls r0, 24
-	lsrs r0, 24
-	ldr r5, _0812B090 @ =gUnknown_203B0E8
-	ldr r2, [r5]
-	lsls r1, r0, 4
-	adds r1, r0
-	lsls r1, 2
-	ldr r4, _0812B094 @ =gSprites
-	adds r1, r4
-	str r1, [r2, 0x8]
-	ldr r0, _0812B098 @ =gUnknown_845AFF8
-	movs r1, 0x40
-	movs r2, 0x98
-	movs r3, 0x1
-	bl CreateSprite
-	lsls r0, 24
-	lsrs r0, 24
-	ldr r2, [r5]
-	lsls r1, r0, 4
-	adds r1, r0
-	lsls r1, 2
-	adds r1, r4
-	str r1, [r2, 0x4]
-	pop {r4,r5}
-	pop {r0}
-	bx r0
-	.align 2, 0
-_0812B08C: .4byte gUnknown_845AFE0
-_0812B090: .4byte gUnknown_203B0E8
-_0812B094: .4byte gSprites
-_0812B098: .4byte gUnknown_845AFF8
-	thumb_func_end sub_812B048
-
-	thumb_func_start sub_812B09C
-sub_812B09C: @ 812B09C
-	push {r4,lr}
-	adds r4, r0, 0
-	bl sub_81297DC
-	adds r3, r0, 0
-	cmp r3, 0xF
-	bne _0812B0B8
-	adds r0, r4, 0
-	adds r0, 0x3E
-	ldrb r1, [r0]
-	movs r2, 0x4
-	orrs r1, r2
-	strb r1, [r0]
-	b _0812B0CC
-_0812B0B8:
-	adds r2, r4, 0
-	adds r2, 0x3E
-	ldrb r0, [r2]
-	movs r1, 0x5
-	negs r1, r1
-	ands r1, r0
-	strb r1, [r2]
-	lsls r0, r3, 3
-	adds r0, 0x4C
-	strh r0, [r4, 0x20]
-_0812B0CC:
-	pop {r4}
-	pop {r0}
-	bx r0
-	thumb_func_end sub_812B09C
-
-	thumb_func_start sub_812B0D4
-sub_812B0D4: @ 812B0D4
-	push {lr}
-	adds r1, r0, 0
-	ldrh r0, [r1, 0x2E]
-	adds r0, 0x1
-	movs r2, 0
-	strh r0, [r1, 0x2E]
-	lsls r0, 16
-	asrs r0, 16
-	cmp r0, 0x4
-	ble _0812B0FA
-	strh r2, [r1, 0x2E]
-	ldrh r0, [r1, 0x24]
-	adds r0, 0x1
-	strh r0, [r1, 0x24]
-	lsls r0, 16
-	asrs r0, 16
-	cmp r0, 0x4
-	ble _0812B0FA
-	strh r2, [r1, 0x24]
-_0812B0FA:
-	pop {r0}
-	bx r0
-	thumb_func_end sub_812B0D4
-
-	thumb_func_start sub_812B100
-sub_812B100: @ 812B100
-	push {r4,r5,lr}
-	ldr r0, _0812B150 @ =gUnknown_845B050
-	movs r1, 0x8
-	movs r2, 0x98
-	movs r3, 0x3
-	bl CreateSprite
-	lsls r0, 24
-	lsrs r0, 24
-	ldr r5, _0812B154 @ =gUnknown_203B0E8
-	ldr r2, [r5]
-	lsls r1, r0, 4
-	adds r1, r0
-	lsls r1, 2
-	ldr r4, _0812B158 @ =gSprites
-	adds r1, r4
-	str r1, [r2, 0xC]
-	ldr r0, _0812B15C @ =gUnknown_845B068
-	movs r1, 0x20
-	movs r2, 0x98
-	movs r3, 0x4
-	bl CreateSprite
-	lsls r0, 24
-	lsrs r0, 24
-	ldr r2, [r5]
-	lsls r1, r0, 4
-	adds r1, r0
-	lsls r1, 2
-	adds r1, r4
-	str r1, [r2, 0x10]
-	adds r1, 0x3E
-	ldrb r0, [r1]
-	movs r2, 0x4
-	orrs r0, r2
-	strb r0, [r1]
-	pop {r4,r5}
-	pop {r0}
-	bx r0
-	.align 2, 0
-_0812B150: .4byte gUnknown_845B050
-_0812B154: .4byte gUnknown_203B0E8
-_0812B158: .4byte gSprites
-_0812B15C: .4byte gUnknown_845B068
-	thumb_func_end sub_812B100
-
-	thumb_func_start sub_812B160
-sub_812B160: @ 812B160
-	push {r4,lr}
-	bl GetCurrentKeyboardPage
-	lsls r0, 24
-	lsrs r0, 24
-	cmp r0, 0x3
-	bne _0812B198
-	bl sub_8129720
-	cmp r0, 0
-	beq _0812B1A2
-	ldr r3, _0812B194 @ =gUnknown_203B0E8
-	ldr r0, [r3]
-	ldr r1, [r0, 0x10]
-	adds r1, 0x3E
-	ldrb r2, [r1]
-	movs r0, 0x5
-	negs r0, r0
-	ands r0, r2
-	strb r0, [r1]
-	ldr r0, [r3]
-	ldr r0, [r0, 0x10]
-	movs r1, 0x3
-	bl StartSpriteAnim
-	b _0812B1D6
-	.align 2, 0
-_0812B194: .4byte gUnknown_203B0E8
-_0812B198:
-	bl sub_81297E8
-	adds r4, r0, 0
-	cmp r4, 0x3
-	bne _0812B1B8
-_0812B1A2:
-	ldr r0, _0812B1B4 @ =gUnknown_203B0E8
-	ldr r0, [r0]
-	ldr r1, [r0, 0x10]
-	adds r1, 0x3E
-	ldrb r0, [r1]
-	movs r2, 0x4
-	orrs r0, r2
-	strb r0, [r1]
-	b _0812B1D6
-	.align 2, 0
-_0812B1B4: .4byte gUnknown_203B0E8
-_0812B1B8:
-	ldr r3, _0812B1DC @ =gUnknown_203B0E8
-	ldr r0, [r3]
-	ldr r1, [r0, 0x10]
-	adds r1, 0x3E
-	ldrb r2, [r1]
-	movs r0, 0x5
-	negs r0, r0
-	ands r0, r2
-	strb r0, [r1]
-	ldr r0, [r3]
-	ldr r0, [r0, 0x10]
-	lsls r1, r4, 24
-	lsrs r1, 24
-	bl StartSpriteAnim
-_0812B1D6:
-	pop {r4}
-	pop {r0}
-	bx r0
-	.align 2, 0
-_0812B1DC: .4byte gUnknown_203B0E8
-	thumb_func_end sub_812B160
-
-	.align 2, 0 @ Don't pad with nop.
diff --git a/data/union_room_chat.s b/data/union_room_chat.s
deleted file mode 100644
index 2873cd4b1..000000000
--- a/data/union_room_chat.s
+++ /dev/null
@@ -1,103 +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_845AC14:: @ 845AC14
-	.incbin "graphics/union_room_chat/unk_845AC14.gbapal"
-
-gUnknown_845AC34::
-	.incbin "graphics/union_room_chat/unk_845AC34.4bpp.lz"
-
-gUnknown_845AEB8::
-	.incbin "graphics/union_room_chat/unk_845AEB8.4bpp.lz"
-
-gUnknown_845AED8::
-	.incbin "graphics/union_room_chat/unk_845AED8.4bpp.lz"
-
-gUnknown_845AF04::
-	.incbin "graphics/union_room_chat/unk_845AF04.4bpp.lz"
-
-gUnknown_845AF58:: @ 845AF58
-	obj_tiles gUnknown_845AC34, 0x1000, 0
-	obj_tiles gUnknown_845AED8, 0x0040, 1
-	obj_tiles gUnknown_845AEB8, 0x0040, 2
-	obj_tiles gUnknown_845AF04, 0x0080, 3
-	obj_tiles gUnknown_8EA1A50, 0x0400, 4
-
-gUnknown_845AF80:: @ 845AF80
-	obj_pal gUnknown_845AC14, 0
-
-gOamData_845AF88::
-	.4byte 0xc0004000, 0x00000400
-
-gAnimCmd_845AF90::
-	obj_image_anim_frame 0x0000, 30
-	obj_image_anim_end
-
-gAnimCmd_845AF98::
-	obj_image_anim_frame 0x0020, 30
-	obj_image_anim_end
-
-gAnimCmd_845AFA0::
-	obj_image_anim_frame 0x0040, 30
-	obj_image_anim_end
-
-gAnimCmd_845AFA8::
-	obj_image_anim_frame 0x0060, 30
-	obj_image_anim_end
-
-gSpriteAnimTable_845AFB0::
-	.4byte gAnimCmd_845AF90
-	.4byte gAnimCmd_845AF98
-	.4byte gAnimCmd_845AFA0
-	.4byte gAnimCmd_845AFA8
-
-gUnknown_845AFC0:: @ 845AFC0
-	spr_template 0, 0, gOamData_845AF88, gSpriteAnimTable_845AFB0, NULL, gDummySpriteAffineAnimTable, SpriteCallbackDummy
-
-gOamData_845AFD8::
-	.4byte 0x00008000, 0x00000800
-
-gUnknown_845AFE0:: @ 845AFE0
-	spr_template 2, 0, gOamData_845AFD8, gDummySpriteAnimTable, NULL, gDummySpriteAffineAnimTable, sub_812B09C
-
-gUnknown_845AFF8:: @ 845AFF8
-	spr_template 1, 0, gOamData_845AFD8, gDummySpriteAnimTable, NULL, gDummySpriteAffineAnimTable, sub_812B0D4
-
-gOamData_845B010::
-	.4byte 0x40000000, 0x00000800
-
-gOamData_845B018::
-	.4byte 0x80004000, 0x00000800
-
-gAnimCmd_845B020::
-	obj_image_anim_frame 0x0000, 2
-	obj_image_anim_end
-
-gAnimCmd_845B028::
-	obj_image_anim_frame 0x0008, 2
-	obj_image_anim_end
-
-gAnimCmd_845B030::
-	obj_image_anim_frame 0x0010, 2
-	obj_image_anim_end
-
-gAnimCmd_845B038::
-	obj_image_anim_frame 0x0018, 2
-	obj_image_anim_end
-
-gSpriteAnimTable_845B040::
-	.4byte gAnimCmd_845B020
-	.4byte gAnimCmd_845B028
-	.4byte gAnimCmd_845B030
-	.4byte gAnimCmd_845B038
-
-gUnknown_845B050:: @ 845B050
-	spr_template 3, 0, gOamData_845B010, gDummySpriteAnimTable, NULL, gDummySpriteAffineAnimTable, SpriteCallbackDummy
-
-gUnknown_845B068:: @ 845B068
-	spr_template 4, 0, gOamData_845B018, gSpriteAnimTable_845B040, NULL, gDummySpriteAffineAnimTable, SpriteCallbackDummy
diff --git a/include/graphics.h b/include/graphics.h
index c3620279d..e77cd2502 100644
--- a/include/graphics.h
+++ b/include/graphics.h
@@ -4872,4 +4872,7 @@ extern const u16 gLinkMiscMenu_Pal[];
 extern const u32 gLinkMiscMenu_Gfx[];
 extern const u32 gLinkMiscMenu_Tilemap[];
 
+// union_room_chat_objects
+extern const u32 gUnknown_8EA1A50[];
+
 #endif //GUARD_GRAPHICS_H
diff --git a/include/union_room_chat.h b/include/union_room_chat.h
index 93bd4a55f..13e51289e 100644
--- a/include/union_room_chat.h
+++ b/include/union_room_chat.h
@@ -13,13 +13,16 @@ extern const u8 *const gUnionRoomKeyboardText[UNION_ROOM_KB_PAGE_COUNT][UNION_RO
 
 void sub_8128420(void);
 u8 *sub_81294B0(int arg0);
+void sub_8129700(u8 *arg0, u8 *arg1);
 u8 *sub_8129714(void);
+int sub_8129720(void);
 void sub_8129730(u32 *a0, u32 *a1);
 u8 *sub_8129758(void);
 u16 sub_8129788(void);
 u8 *sub_81297C4(void);
 u16 sub_81297D0(void);
 int sub_81297DC(void);
+int sub_81297E8(void);
 u8 *sub_8129814(void);
 void copy_strings_to_sav1(void);
 u8 GetCurrentKeyboardPage(void);
diff --git a/include/union_room_chat_objects.h b/include/union_room_chat_objects.h
index 41db4d3a4..38c94b668 100644
--- a/include/union_room_chat_objects.h
+++ b/include/union_room_chat_objects.h
@@ -4,7 +4,7 @@
 bool32 sub_812AE70(void);
 void sub_812AEB0(void);
 void sub_812AEC8(void);
-void sub_812AEFC(bool8 invisible);
+void sub_812AEFC(bool32 invisible);
 void sub_812AF1C(void);
 void sub_812AF8C(u32 idx);
 void sub_812AFC0(void);
diff --git a/ld_script.txt b/ld_script.txt
index c02fc0f08..48617df29 100644
--- a/ld_script.txt
+++ b/ld_script.txt
@@ -248,7 +248,7 @@ SECTIONS {
         src/party_menu.o(.text);
         src/union_room_chat.o(.text);
         src/union_room_chat_display.o(.text);
-        asm/union_room_chat.o(.text);
+        src/union_room_chat_objects.o(.text);
         src/help_system_812B1E0.o(.text);
         src/quest_log_battle.o(.text);
         src/fame_checker.o(.text);
@@ -538,7 +538,7 @@ SECTIONS {
         src/party_menu.o(.rodata);
         src/union_room_chat.o(.rodata);
         src/union_room_chat_display.o(.rodata);
-        data/union_room_chat.o(.rodata);
+        src/union_room_chat_objects.o(.rodata);
         src/help_system_812B1E0.o(.rodata);
         src/fame_checker.o(.rodata);
         src/menu2.o(.rodata);
diff --git a/src/union_room_chat_display.c b/src/union_room_chat_display.c
index 0e1e7c3b6..c60c94eb0 100644
--- a/src/union_room_chat_display.c
+++ b/src/union_room_chat_display.c
@@ -11,46 +11,46 @@
 #include "union_room_chat_display.h"
 #include "union_room_chat_objects.h"
 
-struct UnionRoomChat2_Unk0
+struct UnionRoomChat2Subtask
 {
-    bool32 (*unk0)(u8 *);
-    u8 unk4;
-    u8 unk5;
+    bool32 (*callback)(u8 *);
+    u8 active;
+    u8 state;
 };
 
 struct UnionRoomChat2
 {
-    struct UnionRoomChat2_Unk0 unk0[3];
+    struct UnionRoomChat2Subtask subtasks[3];
     u16 unk18;
     u16 unk1A;
     u16 unk1C;
-    u16 unk1E;
-    s16 unk20;
-    u8 unk22[0x106];
-    u8 unk128[BG_SCREEN_SIZE];
-    u8 unk928[BG_SCREEN_SIZE];
-    u8 unk1128[BG_SCREEN_SIZE];
-    u8 unk1928[BG_SCREEN_SIZE];
+    u16 messageWindowId;
+    s16 bg1hofs;
+    u8 expandedPlaceholdersBuffer[0x106];
+    u8 bg0Buffer[BG_SCREEN_SIZE];
+    u8 bg1Buffer[BG_SCREEN_SIZE];
+    u8 bg3Buffer[BG_SCREEN_SIZE];
+    u8 bg2Buffer[BG_SCREEN_SIZE];
     u8 unk2128[0x20];
     u8 unk2148[0x20];
 };
 
 struct Unk845AABC
 {
-    u16 unk0;
-    bool32 (*unk4)(u8 *);
+    u16 idx;
+    bool32 (*callback)(u8 *);
 };
 
 struct Unk845AB64
 {
-    const u8 *unk0;
-    u8 unk4;
-    u8 unk5;
-    u8 unk6;
-    u8 unk7;
-    u8 unk8;
-    u8 unk9;
-    u8 unkA;
+    const u8 *text;
+    bool8 boxType;
+    u8 x;
+    u8 y;
+    u8 letterSpacing;
+    u8 lineSpacing;
+    bool8 expandPlaceholders;
+    bool8 widerBox;
 };
 
 EWRAM_DATA struct UnionRoomChat2 * gUnknown_203B0E4 = NULL;
@@ -208,17 +208,106 @@ const struct Unk845AABC gUnknown_845AABC[] = {
 };
 
 const struct Unk845AB64 gUnknown_845AB64[] = {
-    {gText_QuitChatting, 1, 0, 0, 1, 2, 0, 0},
-    {gText_RegisterTextWhere, 1, 0, 0, 1, 2, 0, 0},
-    {gText_RegisterTextHere, 1, 0, 0, 1, 2, 0, 0},
-    {gText_InputText, 1, 0, 0, 1, 2, 0, 0},
-    {gText_ExitingTheChat, 2, 0, 0, 1, 2, 0, 0},
-    {gText_LeaderHasLeftEndingChat, 2, 0, 0, 0, 2, 1, 0},
-    {gText_RegisteredTextChanged_OKtoSave, 2, 0, 0, 1, 2, 0, 1},
-    {gText_RegisteredTextChanged_AlreadySavedFile, 2, 0, 0, 1, 2, 0, 1},
-    {gText_RegisteredTextChanged_SavingDontTurnOff, 2, 0, 0, 1, 2, 0, 1},
-    {gText_RegisteredTextChanged_SavedTheGame, 2, 0, 0, 1, 2, 1, 1},
-    {gText_IfLeaderLeavesChatWillEnd, 2, 0, 0, 1, 2, 0, 1}
+    {
+        .text = gText_QuitChatting,
+        .boxType = 1,
+        .x = 0,
+        .y = 0,
+        .letterSpacing = 1,
+        .lineSpacing = 2, 
+        .expandPlaceholders = FALSE,
+        .widerBox = FALSE
+    }, {
+        .text = gText_RegisterTextWhere,
+        .boxType = 1,
+        .x = 0,
+        .y = 0,
+        .letterSpacing = 1,
+        .lineSpacing = 2, 
+        .expandPlaceholders = FALSE,
+        .widerBox = FALSE
+    }, {
+        .text = gText_RegisterTextHere,
+        .boxType = 1,
+        .x = 0,
+        .y = 0,
+        .letterSpacing = 1,
+        .lineSpacing = 2, 
+        .expandPlaceholders = FALSE,
+        .widerBox = FALSE
+    }, {
+        .text = gText_InputText,
+        .boxType = 1,
+        .x = 0,
+        .y = 0,
+        .letterSpacing = 1,
+        .lineSpacing = 2, 
+        .expandPlaceholders = FALSE,
+        .widerBox = FALSE
+    }, {
+        .text = gText_ExitingTheChat,
+        .boxType = 2,
+        .x = 0,
+        .y = 0,
+        .letterSpacing = 1,
+        .lineSpacing = 2, 
+        .expandPlaceholders = FALSE,
+        .widerBox = FALSE
+    }, {
+        .text = gText_LeaderHasLeftEndingChat,
+        .boxType = 2,
+        .x = 0,
+        .y = 0,
+        .letterSpacing = 0,
+        .lineSpacing = 2, 
+        .expandPlaceholders = TRUE,
+        .widerBox = FALSE
+    }, {
+        .text = gText_RegisteredTextChanged_OKtoSave,
+        .boxType = 2,
+        .x = 0,
+        .y = 0,
+        .letterSpacing = 1,
+        .lineSpacing = 2, 
+        .expandPlaceholders = FALSE,
+        .widerBox = TRUE
+    }, {
+        .text = gText_RegisteredTextChanged_AlreadySavedFile,
+        .boxType = 2,
+        .x = 0,
+        .y = 0,
+        .letterSpacing = 1,
+        .lineSpacing = 2, 
+        .expandPlaceholders = FALSE,
+        .widerBox = TRUE
+    }, {
+        .text = gText_RegisteredTextChanged_SavingDontTurnOff,
+        .boxType = 2,
+        .x = 0,
+        .y = 0,
+        .letterSpacing = 1,
+        .lineSpacing = 2, 
+        .expandPlaceholders = FALSE,
+        .widerBox = TRUE
+    }, {
+        .text = gText_RegisteredTextChanged_SavedTheGame,
+        .boxType = 2,
+        .x = 0,
+        .y = 0,
+        .letterSpacing = 1,
+        .lineSpacing = 2, 
+        .expandPlaceholders = TRUE,
+        .widerBox = TRUE
+    }, {
+        .text = gText_IfLeaderLeavesChatWillEnd,
+        .boxType = 2,
+        .x = 0,
+        .y = 0,
+        .letterSpacing = 1,
+        .lineSpacing = 2, 
+        .expandPlaceholders = FALSE,
+        .widerBox = TRUE
+    }
 };
 
 const u8 gText_Ellipsis[] = _("…");
@@ -270,7 +359,7 @@ void sub_8129B88(void)
 void sub_8129BB8(struct UnionRoomChat2 *arg0)
 {
     arg0->unk18 = 0xFF;
-    arg0->unk1E = 0xFF;
+    arg0->messageWindowId = 0xFF;
     arg0->unk1A = 0;
 }
 
@@ -283,9 +372,9 @@ void sub_8129BC4(void)
 
     for (i = 0; i < 3; i++)
     {
-        gUnknown_203B0E4->unk0[i].unk0 = sub_812A420;
-        gUnknown_203B0E4->unk0[i].unk4 = 0;
-        gUnknown_203B0E4->unk0[i].unk5 = 0;
+        gUnknown_203B0E4->subtasks[i].callback = sub_812A420;
+        gUnknown_203B0E4->subtasks[i].active = FALSE;
+        gUnknown_203B0E4->subtasks[i].state = 0;
     }
 }
 
@@ -298,8 +387,8 @@ void sub_8129BFC(void)
 
     for (i = 0; i < 3; i++)
     {
-        if (gUnknown_203B0E4->unk0[i].unk4)
-            gUnknown_203B0E4->unk0[i].unk4 = gUnknown_203B0E4->unk0[i].unk0(&gUnknown_203B0E4->unk0[i].unk5);
+        if (gUnknown_203B0E4->subtasks[i].active)
+            gUnknown_203B0E4->subtasks[i].active = gUnknown_203B0E4->subtasks[i].callback(&gUnknown_203B0E4->subtasks[i].state);
     }
 }
 
@@ -307,14 +396,14 @@ void sub_8129C34(u16 arg0, u8 arg1)
 {
     int i;
 
-    gUnknown_203B0E4->unk0[arg1].unk0 = sub_812A420;
+    gUnknown_203B0E4->subtasks[arg1].callback = sub_812A420;
     for (i = 0; i < NELEMS(gUnknown_845AABC); i++)
     {
-        if (gUnknown_845AABC[i].unk0 == arg0)
+        if (gUnknown_845AABC[i].idx == arg0)
         {
-            gUnknown_203B0E4->unk0[arg1].unk0 = gUnknown_845AABC[i].unk4;
-            gUnknown_203B0E4->unk0[arg1].unk4 = 1;
-            gUnknown_203B0E4->unk0[arg1].unk5 = 0;
+            gUnknown_203B0E4->subtasks[arg1].callback = gUnknown_845AABC[i].callback;
+            gUnknown_203B0E4->subtasks[arg1].active = TRUE;
+            gUnknown_203B0E4->subtasks[arg1].state = 0;
             break;
         }
     }
@@ -322,7 +411,7 @@ void sub_8129C34(u16 arg0, u8 arg1)
 
 bool8 sub_8129C8C(u8 arg0)
 {
-    return gUnknown_203B0E4->unk0[arg0].unk4;
+    return gUnknown_203B0E4->subtasks[arg0].active;
 }
 
 bool32 sub_8129CA0(u8 *state)
@@ -445,7 +534,7 @@ bool32 sub_8129E28(u8 *state)
     case 0:
         sub_812A578(0, 0);
         sub_812A424(23, 11, 1);
-        CopyWindowToVram(gUnknown_203B0E4->unk1E, 3);
+        CopyWindowToVram(gUnknown_203B0E4->messageWindowId, 3);
         break;
     case 1:
         return IsDma3ManagerBusyWithBgCopy();
@@ -524,7 +613,7 @@ bool32 sub_8129F24(u8 *state)
         if (!IsDma3ManagerBusyWithBgCopy())
         {
             sub_812A578(1, 16);
-            CopyWindowToVram(gUnknown_203B0E4->unk1E, 3);
+            CopyWindowToVram(gUnknown_203B0E4->messageWindowId, 3);
         }
         else
         {
@@ -565,7 +654,7 @@ bool32 sub_8129FCC(u8 *state)
         if (!IsDma3ManagerBusyWithBgCopy())
         {
             sub_812A6F4();
-            CopyWindowToVram(gUnknown_203B0E4->unk1E, 3);
+            CopyWindowToVram(gUnknown_203B0E4->messageWindowId, 3);
         }
         else
         {
@@ -688,7 +777,7 @@ bool32 sub_812A1B8(u8 *state)
     {
     case 0:
         sub_812A578(3, 16);
-        CopyWindowToVram(gUnknown_203B0E4->unk1E, 3);
+        CopyWindowToVram(gUnknown_203B0E4->messageWindowId, 3);
         (*state)++;
         break;
     case 1:
@@ -704,7 +793,7 @@ bool32 sub_812A1FC(u8 *state)
     {
     case 0:
         sub_812A578(4, 0);
-        CopyWindowToVram(gUnknown_203B0E4->unk1E, 3);
+        CopyWindowToVram(gUnknown_203B0E4->messageWindowId, 3);
         (*state)++;
         break;
     case 1:
@@ -725,7 +814,7 @@ bool32 sub_812A240(u8 *state)
         str = sub_8129814();
         DynamicPlaceholderTextUtil_SetPlaceholderPtr(0, str);
         sub_812A578(5, 0);
-        CopyWindowToVram(gUnknown_203B0E4->unk1E, 3);
+        CopyWindowToVram(gUnknown_203B0E4->messageWindowId, 3);
         (*state)++;
         break;
     case 1:
@@ -742,7 +831,7 @@ bool32 sub_812A294(u8 *state)
     case 0:
         sub_812A578(6, 0);
         sub_812A424(23, 10, 1);
-        CopyWindowToVram(gUnknown_203B0E4->unk1E, 3);
+        CopyWindowToVram(gUnknown_203B0E4->messageWindowId, 3);
         (*state)++;
         break;
     case 1:
@@ -759,7 +848,7 @@ bool32 sub_812A2E4(u8 *state)
     case 0:
         sub_812A578(7, 0);
         sub_812A424(23, 10, 1);
-        CopyWindowToVram(gUnknown_203B0E4->unk1E, 3);
+        CopyWindowToVram(gUnknown_203B0E4->messageWindowId, 3);
         (*state)++;
         break;
     case 1:
@@ -775,7 +864,7 @@ bool32 sub_812A334(u8 *state)
     {
     case 0:
         sub_812A578(8, 0);
-        CopyWindowToVram(gUnknown_203B0E4->unk1E, 3);
+        CopyWindowToVram(gUnknown_203B0E4->messageWindowId, 3);
         (*state)++;
         break;
     case 1:
@@ -793,7 +882,7 @@ bool32 sub_812A378(u8 *state)
         DynamicPlaceholderTextUtil_Reset();
         DynamicPlaceholderTextUtil_SetPlaceholderPtr(0, gSaveBlock2Ptr->playerName);
         sub_812A578(9, 0);
-        CopyWindowToVram(gUnknown_203B0E4->unk1E, 3);
+        CopyWindowToVram(gUnknown_203B0E4->messageWindowId, 3);
         (*state)++;
         break;
     case 1:
@@ -810,7 +899,7 @@ bool32 sub_812A3D0(u8 *state)
     case 0:
         sub_812A578(10, 0);
         sub_812A424(23, 10, 1);
-        CopyWindowToVram(gUnknown_203B0E4->unk1E, 3);
+        CopyWindowToVram(gUnknown_203B0E4->messageWindowId, 3);
         (*state)++;
         break;
     case 1:
@@ -882,43 +971,43 @@ void sub_812A578(int arg0, u16 arg1)
     template.height = 4;
     template.paletteNum = 14;
     template.baseBlock = 0x06A;
-    if (gUnknown_845AB64[arg0].unkA)
+    if (gUnknown_845AB64[arg0].widerBox)
     {
         template.tilemapLeft -= 7;
         template.width += 7;
     }
 
-    gUnknown_203B0E4->unk1E = AddWindow(&template);
-    windowId = gUnknown_203B0E4->unk1E;
-    if (gUnknown_203B0E4->unk1E == 0xFF)
+    gUnknown_203B0E4->messageWindowId = AddWindow(&template);
+    windowId = gUnknown_203B0E4->messageWindowId;
+    if (gUnknown_203B0E4->messageWindowId == 0xFF)
         return;
 
-    if (gUnknown_845AB64[arg0].unk9)
+    if (gUnknown_845AB64[arg0].expandPlaceholders)
     {
-        DynamicPlaceholderTextUtil_ExpandPlaceholders(gUnknown_203B0E4->unk22, gUnknown_845AB64[arg0].unk0);
-        str = gUnknown_203B0E4->unk22;
+        DynamicPlaceholderTextUtil_ExpandPlaceholders(gUnknown_203B0E4->expandedPlaceholdersBuffer, gUnknown_845AB64[arg0].text);
+        str = gUnknown_203B0E4->expandedPlaceholdersBuffer;
     }
     else
     {
-        str = gUnknown_845AB64[arg0].unk0;
+        str = gUnknown_845AB64[arg0].text;
     }
 
     ChangeBgY(0, arg1 * 256, 0);
     FillWindowPixelBuffer(windowId, PIXEL_FILL(1));
     PutWindowTilemap(windowId);
-    if (gUnknown_845AB64[arg0].unk4 == 1)
+    if (gUnknown_845AB64[arg0].boxType == 1)
     {
         DrawTextBorderInner(windowId, 0xA, 2);
         AddTextPrinterParameterized5(
             windowId,
             2,
             str,
-            gUnknown_845AB64[arg0].unk5 + 8,
-            gUnknown_845AB64[arg0].unk6 + 8,
+            gUnknown_845AB64[arg0].x + 8,
+            gUnknown_845AB64[arg0].y + 8,
             TEXT_SPEED_FF,
             NULL,
-            gUnknown_845AB64[arg0].unk7,
-            gUnknown_845AB64[arg0].unk8);
+            gUnknown_845AB64[arg0].letterSpacing,
+            gUnknown_845AB64[arg0].lineSpacing);
     }
     else
     {
@@ -927,23 +1016,23 @@ void sub_812A578(int arg0, u16 arg1)
             windowId,
             2,
             str,
-            gUnknown_845AB64[arg0].unk5,
-            gUnknown_845AB64[arg0].unk6,
+            gUnknown_845AB64[arg0].x,
+            gUnknown_845AB64[arg0].y,
             TEXT_SPEED_FF,
             NULL,
-            gUnknown_845AB64[arg0].unk7,
-            gUnknown_845AB64[arg0].unk8);
+            gUnknown_845AB64[arg0].letterSpacing,
+            gUnknown_845AB64[arg0].lineSpacing);
     }
 
-    gUnknown_203B0E4->unk1E = windowId;
+    gUnknown_203B0E4->messageWindowId = windowId;
 }
 
 void sub_812A6F4(void)
 {
-    if (gUnknown_203B0E4->unk1E != 0xFF)
+    if (gUnknown_203B0E4->messageWindowId != 0xFF)
     {
-        ClearStdWindowAndFrameToTransparent(gUnknown_203B0E4->unk1E, FALSE);
-        ClearWindowTilemap(gUnknown_203B0E4->unk1E);
+        ClearStdWindowAndFrameToTransparent(gUnknown_203B0E4->messageWindowId, FALSE);
+        ClearWindowTilemap(gUnknown_203B0E4->messageWindowId);
     }
 
     ChangeBgY(0, 0, 0);
@@ -951,10 +1040,10 @@ void sub_812A6F4(void)
 
 void sub_812A728(void)
 {
-    if (gUnknown_203B0E4->unk1E != 0xFF)
+    if (gUnknown_203B0E4->messageWindowId != 0xFF)
     {
-        RemoveWindow(gUnknown_203B0E4->unk1E);
-        gUnknown_203B0E4->unk1E = 0xFF;
+        RemoveWindow(gUnknown_203B0E4->messageWindowId);
+        gUnknown_203B0E4->messageWindowId = 0xFF;
     }
 }
 
@@ -1045,39 +1134,39 @@ void sub_812A804(void)
 
 bool32 sub_812A980(void)
 {
-    if (gUnknown_203B0E4->unk20 < 56)
+    if (gUnknown_203B0E4->bg1hofs < 56)
     {
-        gUnknown_203B0E4->unk20 += 12;
-        if (gUnknown_203B0E4->unk20 >= 56)
-            gUnknown_203B0E4->unk20 = 56;
+        gUnknown_203B0E4->bg1hofs += 12;
+        if (gUnknown_203B0E4->bg1hofs >= 56)
+            gUnknown_203B0E4->bg1hofs = 56;
 
-        if (gUnknown_203B0E4->unk20 < 56)
+        if (gUnknown_203B0E4->bg1hofs < 56)
         {
-            sub_812ADA0(gUnknown_203B0E4->unk20);
+            sub_812ADA0(gUnknown_203B0E4->bg1hofs);
             return TRUE;
         }
     }
 
-    sub_812ADF8(gUnknown_203B0E4->unk20);
+    sub_812ADF8(gUnknown_203B0E4->bg1hofs);
     return FALSE;
 }
 
 bool32 sub_812A9C8(void)
 {
-    if (gUnknown_203B0E4->unk20 > 0)
+    if (gUnknown_203B0E4->bg1hofs > 0)
     {
-        gUnknown_203B0E4->unk20 -= 12;
-        if (gUnknown_203B0E4->unk20 <= 0)
-            gUnknown_203B0E4->unk20 = 0;
+        gUnknown_203B0E4->bg1hofs -= 12;
+        if (gUnknown_203B0E4->bg1hofs <= 0)
+            gUnknown_203B0E4->bg1hofs = 0;
 
-        if (gUnknown_203B0E4->unk20 > 0)
+        if (gUnknown_203B0E4->bg1hofs > 0)
         {
-            sub_812ADA0(gUnknown_203B0E4->unk20);
+            sub_812ADA0(gUnknown_203B0E4->bg1hofs);
             return TRUE;
         }
     }
 
-    sub_812ADF8(gUnknown_203B0E4->unk20);
+    sub_812ADF8(gUnknown_203B0E4->bg1hofs);
     return FALSE;
 }
 
@@ -1133,10 +1222,10 @@ void sub_812AAD4(void)
 
 void sub_812AB8C(void)
 {
-    SetBgTilemapBuffer(0, gUnknown_203B0E4->unk128);
-    SetBgTilemapBuffer(1, gUnknown_203B0E4->unk928);
-    SetBgTilemapBuffer(3, gUnknown_203B0E4->unk1128);
-    SetBgTilemapBuffer(2, gUnknown_203B0E4->unk1928);
+    SetBgTilemapBuffer(0, gUnknown_203B0E4->bg0Buffer);
+    SetBgTilemapBuffer(1, gUnknown_203B0E4->bg1Buffer);
+    SetBgTilemapBuffer(3, gUnknown_203B0E4->bg3Buffer);
+    SetBgTilemapBuffer(2, gUnknown_203B0E4->bg2Buffer);
 }
 
 void sub_812ABD8(void)
@@ -1208,7 +1297,7 @@ void sub_812AD50(void)
     params.dmaDest = &REG_BG1HOFS;
     params.initState = 1;
     params.unused9 = 0;
-    gUnknown_203B0E4->unk20 = 0;
+    gUnknown_203B0E4->bg1hofs = 0;
     CpuFastFill(0, gScanlineEffectRegBuffers, sizeof(gScanlineEffectRegBuffers));
     ScanlineEffect_SetParams(params);
 }
diff --git a/src/union_room_chat_objects.c b/src/union_room_chat_objects.c
new file mode 100644
index 000000000..805e95d33
--- /dev/null
+++ b/src/union_room_chat_objects.c
@@ -0,0 +1,316 @@
+#include "global.h"
+#include "gflib.h"
+#include "decompress.h"
+#include "graphics.h"
+#include "union_room_chat.h"
+
+struct UnionRoomChat3
+{
+    struct Sprite *unk0;
+    struct Sprite *unk4;
+    struct Sprite *unk8;
+    struct Sprite *unkC;
+    struct Sprite *unk10;
+    u16 unk14;
+};
+
+EWRAM_DATA struct UnionRoomChat3 *gUnknown_203B0E8 = NULL;
+
+void sub_812B09C(struct Sprite * sprite);
+void sub_812B0D4(struct Sprite * sprite);
+
+const u16 gUnknown_845AC14[] = INCBIN_U16("graphics/union_room_chat/unk_845AC14.gbapal");
+const u32 gUnknown_845AC34[] = INCBIN_U32("graphics/union_room_chat/unk_845AC34.4bpp.lz");
+const u32 gUnknown_845AEB8[] = INCBIN_U32("graphics/union_room_chat/unk_845AEB8.4bpp.lz");
+const u32 gUnknown_845AED8[] = INCBIN_U32("graphics/union_room_chat/unk_845AED8.4bpp.lz");
+const u32 gUnknown_845AF04[] = INCBIN_U32("graphics/union_room_chat/unk_845AF04.4bpp.lz");
+
+const struct CompressedSpriteSheet gUnknown_845AF58[] = {
+    {gUnknown_845AC34, 0x1000, 0},
+    {gUnknown_845AED8, 0x0040, 1},
+    {gUnknown_845AEB8, 0x0040, 2},
+    {gUnknown_845AF04, 0x0080, 3},
+    {gUnknown_8EA1A50, 0x0400, 4}
+};
+
+const struct SpritePalette gUnknown_845AF80 = {
+    gUnknown_845AC14, 0
+};
+
+const struct OamData gOamData_845AF88 = {
+    .shape = SPRITE_SHAPE(64x32),
+    .size = SPRITE_SIZE(64x32),
+    .priority = 1
+};
+
+const union AnimCmd gAnimCmd_845AF90[] = {
+    ANIMCMD_FRAME(0x00, 30),
+    ANIMCMD_END
+};
+
+const union AnimCmd gAnimCmd_845AF98[] = {
+    ANIMCMD_FRAME(0x20, 30),
+    ANIMCMD_END
+};
+
+const union AnimCmd gAnimCmd_845AFA0[] = {
+    ANIMCMD_FRAME(0x40, 30),
+    ANIMCMD_END
+};
+
+const union AnimCmd gAnimCmd_845AFA8[] = {
+    ANIMCMD_FRAME(0x60, 30),
+    ANIMCMD_END
+};
+
+const union AnimCmd *const gSpriteAnimTable_845AFB0[] = {
+    gAnimCmd_845AF90,
+    gAnimCmd_845AF98,
+    gAnimCmd_845AFA0,
+    gAnimCmd_845AFA8
+};
+
+const struct SpriteTemplate gUnknown_845AFC0 = {
+    .tileTag = 0,
+    .paletteTag = 0,
+    .oam = &gOamData_845AF88,
+    .anims = gSpriteAnimTable_845AFB0,
+    .affineAnims = gDummySpriteAffineAnimTable,
+    .callback = SpriteCallbackDummy
+};
+
+const struct OamData gOamData_845AFD8 = {
+    .shape = SPRITE_SHAPE(8x16),
+    .size = SPRITE_SIZE(8x16),
+    .priority = 2
+};
+
+const struct SpriteTemplate gUnknown_845AFE0 = {
+    .tileTag = 2,
+    .paletteTag = 0,
+    .oam = &gOamData_845AFD8,
+    .anims = gDummySpriteAnimTable,
+    .affineAnims = gDummySpriteAffineAnimTable,
+    .callback = sub_812B09C
+};
+
+const struct SpriteTemplate gUnknown_845AFF8 = {
+    .tileTag = 1,
+    .paletteTag = 0,
+    .oam = &gOamData_845AFD8,
+    .anims = gDummySpriteAnimTable,
+    .affineAnims = gDummySpriteAffineAnimTable,
+    .callback = sub_812B0D4
+};
+
+const struct OamData gOamData_845B010 = {
+    .shape = SPRITE_SHAPE(16x16),
+    .size = SPRITE_SIZE(16x16),
+    .priority = 2
+};
+
+const struct OamData gOamData_845B018 = {
+    .shape = SPRITE_SHAPE(32x16),
+    .size = SPRITE_SIZE(32x16),
+    .priority = 2
+};
+
+const union AnimCmd gAnimCmd_845B020[] = {
+    ANIMCMD_FRAME(0x00, 2),
+    ANIMCMD_END
+};
+
+const union AnimCmd gAnimCmd_845B028[] = {
+    ANIMCMD_FRAME(0x08, 2),
+    ANIMCMD_END
+};
+
+const union AnimCmd gAnimCmd_845B030[] = {
+    ANIMCMD_FRAME(0x10, 2),
+    ANIMCMD_END
+};
+
+const union AnimCmd gAnimCmd_845B038[] = {
+    ANIMCMD_FRAME(0x18, 2),
+    ANIMCMD_END
+};
+
+const union AnimCmd *const gSpriteAnimTable_845B040[] = {
+    gAnimCmd_845B020,
+    gAnimCmd_845B028,
+    gAnimCmd_845B030,
+    gAnimCmd_845B038
+};
+
+const struct SpriteTemplate gUnknown_845B050 = {
+    .tileTag = 3,
+    .paletteTag = 0,
+    .oam = &gOamData_845B010,
+    .anims = gDummySpriteAnimTable,
+    .affineAnims = gDummySpriteAffineAnimTable,
+    .callback = SpriteCallbackDummy
+};
+
+const struct SpriteTemplate gUnknown_845B068 = {
+    .tileTag = 4,
+    .paletteTag = 0,
+    .oam = &gOamData_845B018,
+    .anims = gSpriteAnimTable_845B040,
+    .affineAnims = gDummySpriteAffineAnimTable,
+    .callback = SpriteCallbackDummy
+};
+
+bool32 sub_812AE70(void)
+{
+    u32 i;
+    for (i = 0; i < 5; i++)
+        LoadCompressedSpriteSheet(&gUnknown_845AF58[i]);
+
+    LoadSpritePalette(&gUnknown_845AF80);
+    gUnknown_203B0E8 = Alloc(0x18);
+    if (!gUnknown_203B0E8)
+        return FALSE;
+
+    return TRUE;
+}
+
+void sub_812AEB0(void)
+{
+    if (gUnknown_203B0E8)
+        Free(gUnknown_203B0E8);
+}
+
+void sub_812AEC8(void)
+{
+    u8 spriteId = CreateSprite(&gUnknown_845AFC0, 10, 24, 0);
+    gUnknown_203B0E8->unk0 = &gSprites[spriteId];
+}
+
+void sub_812AEFC(bool32 invisible)
+{
+    gUnknown_203B0E8->unk0->invisible = invisible;
+}
+
+void sub_812AF1C(void)
+{
+    u8 x, y;
+    u8 page = GetCurrentKeyboardPage();
+    sub_8129700(&x, &y);
+    if (page != UNION_ROOM_KB_PAGE_COUNT)
+    {
+        StartSpriteAnim(gUnknown_203B0E8->unk0, 0);
+        gUnknown_203B0E8->unk0->pos1.x = x * 8 + 10;
+        gUnknown_203B0E8->unk0->pos1.y = y * 12 + 24;
+    }
+    else
+    {
+        StartSpriteAnim(gUnknown_203B0E8->unk0, 2);
+        gUnknown_203B0E8->unk0->pos1.x = 24;
+        gUnknown_203B0E8->unk0->pos1.y = y * 12 + 24;
+    }
+}
+
+void sub_812AF8C(int arg0)
+{
+    const u16 *palette = &gUnknown_845AC14[arg0 * 2 + 1];
+    u8 index = IndexOfSpritePaletteTag(0);
+    LoadPalette(palette, index * 16 + 0x101, 4);
+}
+
+void sub_812AFC0(void)
+{
+    if (GetCurrentKeyboardPage() != UNION_ROOM_KB_PAGE_COUNT)
+        StartSpriteAnim(gUnknown_203B0E8->unk0, 1);
+    else
+        StartSpriteAnim(gUnknown_203B0E8->unk0, 3);
+
+    gUnknown_203B0E8->unk14 = 0;
+}
+
+bool32 sub_812AFFC(void)
+{
+    if (gUnknown_203B0E8->unk14 > 3)
+        return FALSE;
+
+    if (++gUnknown_203B0E8->unk14 > 3)
+    {
+        if (GetCurrentKeyboardPage() != UNION_ROOM_KB_PAGE_COUNT)
+            StartSpriteAnim(gUnknown_203B0E8->unk0, 0);
+        else
+            StartSpriteAnim(gUnknown_203B0E8->unk0, 2);
+
+        return FALSE;
+    }
+
+    return TRUE;
+}
+
+void sub_812B048(void)
+{
+    u8 spriteId = CreateSprite(&gUnknown_845AFE0, 76, 152, 2);
+    gUnknown_203B0E8->unk8 = &gSprites[spriteId];
+    spriteId = CreateSprite(&gUnknown_845AFF8, 64, 152, 1);
+    gUnknown_203B0E8->unk4 = &gSprites[spriteId];
+}
+
+void sub_812B09C(struct Sprite *sprite)
+{
+    int var0 = sub_81297DC();
+    if (var0 == 15)
+    {
+        sprite->invisible = TRUE;
+    }
+    else
+    {
+        sprite->invisible = FALSE;
+        sprite->pos1.x = var0 * 8 + 76;
+    }
+}
+
+void sub_812B0D4(struct Sprite *sprite)
+{
+    if (++sprite->data[0] > 4)
+    {
+        sprite->data[0] = 0;
+        if (++sprite->pos2.x > 4)
+            sprite->pos2.x = 0;
+    }
+}
+
+void sub_812B100(void)
+{
+    u8 spriteId = CreateSprite(&gUnknown_845B050, 8, 152, 3);
+    gUnknown_203B0E8->unkC = &gSprites[spriteId];
+    spriteId = CreateSprite(&gUnknown_845B068, 32, 152, 4);
+    gUnknown_203B0E8->unk10 = &gSprites[spriteId];
+    gUnknown_203B0E8->unk10->invisible = 1;
+}
+
+void sub_812B160(void)
+{
+    if (GetCurrentKeyboardPage() == UNION_ROOM_KB_PAGE_COUNT)
+    {
+        if (sub_8129720() != 0)
+        {
+            gUnknown_203B0E8->unk10->invisible = 0;
+            StartSpriteAnim(gUnknown_203B0E8->unk10, 3);
+        }
+        else
+        {
+            gUnknown_203B0E8->unk10->invisible = 1;
+        }
+    }
+    else
+    {
+        int anim = sub_81297E8();
+        if (anim == 3)
+        {
+            gUnknown_203B0E8->unk10->invisible = 1;
+        }
+        else
+        {
+            gUnknown_203B0E8->unk10->invisible = 0;
+            StartSpriteAnim(gUnknown_203B0E8->unk10, anim);
+        }
+    }
+}
diff --git a/sym_ewram.txt b/sym_ewram.txt
index 3ab110c7b..b9b7063d0 100644
--- a/sym_ewram.txt
+++ b/sym_ewram.txt
@@ -369,17 +369,12 @@ gUnknown_203B098: @ 203B098
 
 	.align 2
 	.include "src/party_menu.o"
-
 	.align 2
-gUnknown_203B0E0: @ 203B0E0
-	.space 0x4
-
-gUnknown_203B0E4: @ 203B0E4
-	.space 0x4
-
-gUnknown_203B0E8: @ 203B0E8
-	.space 0x4
-
+	.include "src/union_room_chat.o"
+	.align 2
+	.include "src/union_room_chat_display.o"
+	.align 2
+	.include "src/union_room_chat_objects.o"
 	.align 2
 	.include "src/help_system_812B1E0.o"
 	.align 2