start decompilation

4 files changed, 138 insertions, 195 deletions

diff --git a/asm/battle_anim.s b/asm/battle_anim.s
index 42d099c4c..94f74c261 100644
--- a/asm/battle_anim.s
+++ b/asm/battle_anim.s
@@ -5,131 +5,6 @@
 
 	.text
 
-	thumb_func_start ClearBattleAnimationVars
-ClearBattleAnimationVars: @ 80724C0
-	push {r4-r7,lr}
-	mov r7, r9
-	mov r6, r8
-	push {r6,r7}
-	ldr r0, _08072554 @ =gUnknown_2037EE0
-	movs r1, 0
-	strb r1, [r0]
-	ldr r0, _08072558 @ =gAnimScriptActive
-	strb r1, [r0]
-	ldr r0, _0807255C @ =gAnimVisualTaskCount
-	strb r1, [r0]
-	ldr r0, _08072560 @ =gUnknown_2037EE3
-	strb r1, [r0]
-	ldr r0, _08072564 @ =gAnimDisableStructPtr
-	movs r1, 0
-	str r1, [r0]
-	ldr r0, _08072568 @ =gAnimMoveDmg
-	str r1, [r0]
-	ldr r0, _0807256C @ =gAnimMovePower
-	movs r2, 0
-	strh r1, [r0]
-	ldr r0, _08072570 @ =gAnimFriendship
-	strb r2, [r0]
-	ldr r4, _08072574 @ =gUnknown_2037F14
-	ldr r5, _08072578 @ =gAnimMoveTurn
-	ldr r6, _0807257C @ =gUnknown_2037F17
-	ldr r7, _08072580 @ =gUnknown_2037F18
-	ldr r0, _08072584 @ =gBattleAnimAttacker
-	mov r12, r0
-	ldr r1, _08072588 @ =gBattleAnimTarget
-	mov r8, r1
-	ldr r0, _0807258C @ =gUnknown_2037F24
-	mov r9, r0
-	ldr r1, _08072590 @ =0x0000ffff
-	adds r3, r1, 0
-	ldr r1, _08072594 @ =gUnknown_2037EEE
-	movs r2, 0x7
-_0807250A:
-	ldrh r0, [r1]
-	orrs r0, r3
-	strh r0, [r1]
-	adds r1, 0x2
-	subs r2, 0x1
-	cmp r2, 0
-	bge _0807250A
-	ldr r1, _08072598 @ =gBattleAnimArgs
-	movs r2, 0
-	adds r0, r1, 0
-	adds r0, 0xE
-_08072520:
-	strh r2, [r0]
-	subs r0, 0x2
-	cmp r0, r1
-	bge _08072520
-	movs r1, 0
-	movs r0, 0xFF
-	strb r0, [r4]
-	movs r0, 0x1
-	negs r0, r0
-	strb r0, [r4, 0x1]
-	strb r1, [r5]
-	strb r1, [r6]
-	movs r0, 0
-	strh r1, [r7]
-	mov r1, r12
-	strb r0, [r1]
-	mov r1, r8
-	strb r0, [r1]
-	mov r1, r9
-	strb r0, [r1]
-	pop {r3,r4}
-	mov r8, r3
-	mov r9, r4
-	pop {r4-r7}
-	pop {r0}
-	bx r0
-	.align 2, 0
-_08072554: .4byte gUnknown_2037EE0
-_08072558: .4byte gAnimScriptActive
-_0807255C: .4byte gAnimVisualTaskCount
-_08072560: .4byte gUnknown_2037EE3
-_08072564: .4byte gAnimDisableStructPtr
-_08072568: .4byte gAnimMoveDmg
-_0807256C: .4byte gAnimMovePower
-_08072570: .4byte gAnimFriendship
-_08072574: .4byte gUnknown_2037F14
-_08072578: .4byte gAnimMoveTurn
-_0807257C: .4byte gUnknown_2037F17
-_08072580: .4byte gUnknown_2037F18
-_08072584: .4byte gBattleAnimAttacker
-_08072588: .4byte gBattleAnimTarget
-_0807258C: .4byte gUnknown_2037F24
-_08072590: .4byte 0x0000ffff
-_08072594: .4byte gUnknown_2037EEE
-_08072598: .4byte gBattleAnimArgs
-	thumb_func_end ClearBattleAnimationVars
-
-	thumb_func_start DoMoveAnim
-DoMoveAnim: @ 807259C
-	push {lr}
-	adds r1, r0, 0
-	lsls r1, 16
-	lsrs r1, 16
-	ldr r2, _080725C0 @ =gBattleAnimAttacker
-	ldr r0, _080725C4 @ =gBattlerAttacker
-	ldrb r0, [r0]
-	strb r0, [r2]
-	ldr r2, _080725C8 @ =gBattleAnimTarget
-	ldr r0, _080725CC @ =gBattlerTarget
-	ldrb r0, [r0]
-	strb r0, [r2]
-	ldr r0, _080725D0 @ =gBattleAnims_Moves
-	movs r2, 0x1
-	bl LaunchBattleAnimation
-	pop {r0}
-	bx r0
-	.align 2, 0
-_080725C0: .4byte gBattleAnimAttacker
-_080725C4: .4byte gBattlerAttacker
-_080725C8: .4byte gBattleAnimTarget
-_080725CC: .4byte gBattlerTarget
-_080725D0: .4byte gBattleAnims_Moves
-	thumb_func_end DoMoveAnim
 
 	thumb_func_start LaunchBattleAnimation
 LaunchBattleAnimation: @ 80725D4
diff --git a/ld_script.txt b/ld_script.txt
index cf7005555..4fd74f9c5 100644
--- a/ld_script.txt
+++ b/ld_script.txt
@@ -111,6 +111,7 @@ SECTIONS {
         src/tileset_anims.o(.text);
         src/palette.o(.text);
         src/sound.o(.text);
+		src/battle_anim.o(.text);
         asm/battle_anim.o(.text);
         src/battle_anim_mons.o(.text);
         src/task.o(.text);
diff --git a/src/battle_anim.c b/src/battle_anim.c
new file mode 100644
index 000000000..64f01beb1
--- /dev/null
+++ b/src/battle_anim.c
@@ -0,0 +1,136 @@
+#include "global.h"
+#include "battle.h"
+#include "battle_anim.h"
+#include "battle_controllers.h"
+#include "battle_interface.h"
+
+// Defines
+#define ANIM_SPRITE_INDEX_COUNT 8
+
+// RAM
+EWRAM_DATA static const u8 *sBattleAnimScriptPtr = NULL;
+EWRAM_DATA static const u8 *sBattleAnimScriptRetAddr = NULL;
+EWRAM_DATA void (*gAnimScriptCallback)(void) = NULL;
+EWRAM_DATA static s8 gAnimFramesToWait = 0;
+EWRAM_DATA bool8 gAnimScriptActive = FALSE;
+EWRAM_DATA u8 gAnimVisualTaskCount = 0;
+EWRAM_DATA u8 gAnimSoundTaskCount = 0;
+EWRAM_DATA struct DisableStruct *gAnimDisableStructPtr = NULL;
+EWRAM_DATA s32 gAnimMoveDmg = 0;
+EWRAM_DATA u16 gAnimMovePower = 0;
+EWRAM_DATA static u16 sAnimSpriteIndexArray[ANIM_SPRITE_INDEX_COUNT] = {0};
+EWRAM_DATA u8 gAnimFriendship = 0;
+EWRAM_DATA u16 gWeatherMoveAnim = 0;
+EWRAM_DATA s16 gBattleAnimArgs[ANIM_ARGS_COUNT] = {0};
+EWRAM_DATA static u16 sSoundAnimFramesToWait = 0;
+EWRAM_DATA static u8 sMonAnimTaskIdArray[2] = {0};
+EWRAM_DATA u8 gAnimMoveTurn = 0;
+EWRAM_DATA static u8 sAnimBackgroundFadeState = 0;
+EWRAM_DATA static u16 sAnimMoveIndex = 0; // Set but unused.
+EWRAM_DATA u8 gBattleAnimAttacker = 0;
+EWRAM_DATA u8 gBattleAnimTarget = 0;
+EWRAM_DATA u16 gAnimBattlerSpecies[MAX_BATTLERS_COUNT] = {0};
+EWRAM_DATA u8 gUnknown_2037F24 = 0;
+
+// Data
+
+// Function Declarations
+
+
+void ClearBattleAnimationVars(void)
+{
+    s32 i;
+
+    gAnimFramesToWait = 0;
+    gAnimScriptActive = FALSE;
+    gAnimVisualTaskCount = 0;
+    gAnimSoundTaskCount = 0;
+    gAnimDisableStructPtr = NULL;
+    gAnimMoveDmg = 0;
+    gAnimMovePower = 0;
+    gAnimFriendship = 0;
+	
+    // Clear index array.
+    for (i = 0; i < ANIM_SPRITE_INDEX_COUNT; i++)
+        sAnimSpriteIndexArray[i] |= 0xFFFF;
+
+    // Clear anim args.
+    for (i = 0; i < ANIM_ARGS_COUNT; i++)
+        gBattleAnimArgs[i] = 0;
+
+    sMonAnimTaskIdArray[0] = 0xFF;
+    sMonAnimTaskIdArray[1] = (s8)0xFF;
+    gAnimMoveTurn = 0;
+    sAnimBackgroundFadeState = 0;
+    sAnimMoveIndex = 0;
+    gBattleAnimAttacker = 0;
+    gBattleAnimTarget = 0;
+    gUnknown_2037F24 = 0;
+}
+
+void DoMoveAnim(u16 move)
+{
+    gBattleAnimAttacker = gBattlerAttacker;
+    gBattleAnimTarget = gBattlerTarget;
+    LaunchBattleAnimation(gBattleAnims_Moves, move, TRUE);
+}
+
+void LaunchBattleAnimation(const u8 *const animsTable[], u16 tableId, bool8 isMoveAnim)
+{
+    s32 i;
+
+    if (!IsContest())
+    {
+        sub_80A8278();
+        UpdateOamPriorityInAllHealthboxes(0);
+        for (i = 0; i < MAX_BATTLERS_COUNT; i++)
+        {
+            if (GetBattlerSide(i) != B_SIDE_PLAYER)
+                gAnimBattlerSpecies[i] = GetMonData(&gEnemyParty[gBattlerPartyIndexes[i]], MON_DATA_SPECIES);
+            else
+                gAnimBattlerSpecies[i] = GetMonData(&gPlayerParty[gBattlerPartyIndexes[i]], MON_DATA_SPECIES);
+        }
+    }
+    else
+    {
+        for (i = 0; i < 4; i++)
+            gAnimBattlerSpecies[i] = gContestResources->field_18->species;
+    }
+
+    if (!isMoveAnim)
+        sAnimMoveIndex = 0;
+    else
+        sAnimMoveIndex = tableId;
+
+    for (i = 0; i < ANIM_ARGS_COUNT; i++)
+        gBattleAnimArgs[i] = 0;
+
+    sMonAnimTaskIdArray[0] = 0xFF;
+    sMonAnimTaskIdArray[1] = 0xFF;
+    sBattleAnimScriptPtr = animsTable[tableId];
+    gAnimScriptActive = TRUE;
+    gAnimFramesToWait = 0;
+    gAnimScriptCallback = RunAnimScriptCommand;
+
+    for (i = 0; i < ANIM_SPRITE_INDEX_COUNT; i++)
+        sAnimSpriteIndexArray[i] = 0xFFFF;
+
+    if (isMoveAnim)
+    {
+        for (i = 0; gMovesWithQuietBGM[i] != 0xFFFF; i++)
+        {
+            if (tableId == gMovesWithQuietBGM[i])
+            {
+                m4aMPlayVolumeControl(&gMPlayInfo_BGM, 0xFFFF, 128);
+                break;
+            }
+        }
+    }
+
+    gBattle_WIN0H = 0;
+    gBattle_WIN0V = 0;
+    gBattle_WIN1H = 0;
+    gBattle_WIN1V = 0;
+}
+
+
diff --git a/sym_ewram.txt b/sym_ewram.txt
index e068902f2..d06732e80 100644
--- a/sym_ewram.txt
+++ b/sym_ewram.txt
@@ -119,77 +119,8 @@ gUnknown_203709C: @ 203709C
 	.include "src/palette.o"
 	.align 2
 	.include "src/sound.o"
-
 	.align 2
-gUnknown_2037ED4: @ 2037ED4
-	.space 0x4
-
-gUnknown_2037ED8: @ 2037ED8
-	.space 0x4
-
-gAnimScriptCallback: @ 2037EDC
-	.space 0x4
-
-gUnknown_2037EE0: @ 2037EE0
-	.space 0x1
-
-gAnimScriptActive: @ 2037EE1
-	.space 0x1
-
-gAnimVisualTaskCount: @ 2037EE2
-	.space 0x1
-
-gUnknown_2037EE3: @ 2037EE3
-	.space 0x1
-
-gAnimDisableStructPtr: @ 2037EE4
-	.space 0x4
-
-gAnimMoveDmg: @ 2037EE8
-	.space 0x4
-
-gAnimMovePower: @ 2037EEC
-	.space 0x2
-
-gUnknown_2037EEE: @ 2037EEE
-	.space 0x10
-
-gAnimFriendship: @ 2037EFE
-	.space 0x2
-
-gWeatherMoveAnim: @ 2037F00
-	.space 0x2
-
-gBattleAnimArgs: @ 2037F02
-	.space 0x10
-
-gUnknown_2037F12: @ 2037F12
-	.space 0x2
-
-gUnknown_2037F14: @ 2037F14
-	.space 0x2
-
-gAnimMoveTurn: @ 2037F16
-	.space 0x1
-
-gUnknown_2037F17: @ 2037F17
-	.space 0x1
-
-gUnknown_2037F18: @ 2037F18
-	.space 0x2
-
-gBattleAnimAttacker: @ 2037F1A
-	.space 0x1
-
-gBattleAnimTarget: @ 2037F1B
-	.space 0x1
-
-gAnimBattlerSpecies: @ 2037F1C
-	.space 0x8
-
-gUnknown_2037F24: @ 2037F24
-	.space 0x4
-
+	.include "src/battle_anim.o"
 	.align 2
 	.include "src/battle_anim_mons.o"
 	.align 2