From 2c432c314a95b5c48f411075fb6f2ff62fa69617 Mon Sep 17 00:00:00 2001
From: ultima-soul <akshayjhanji@hotmail.com>
Date: Sun, 7 Apr 2019 18:36:10 -0700
Subject: [PATCH] Match sub_8159308

---
 include/battle_anim.h         |  2 +-
 src/battle_anim.c             |  2 +-
 src/battle_anim_sound_tasks.c | 71 ++++++-----------------------------
 3 files changed, 14 insertions(+), 61 deletions(-)

diff --git a/include/battle_anim.h b/include/battle_anim.h
index 949bc236bc..a7b71bd856 100644
--- a/include/battle_anim.h
+++ b/include/battle_anim.h
@@ -62,7 +62,7 @@ void MoveBattlerSpriteToBG(u8 battlerId, bool8 toBG_2, bool8 setSpriteInvisible)
 bool8 IsContest(void);
 s8 BattleAnimAdjustPanning(s8 pan);
 s8 BattleAnimAdjustPanning2(s8 pan);
-s16 KeepPanInRange(s16 a);
+s16 KeepPanInRange(s16 a, int oldPan);
 s16 CalculatePanIncrement(s16 sourcePan, s16 targetPan, s16 incrementPan);
 void sub_80A4720(u16 a, u16 *b, u32 c, u8 d);
 void sub_80A477C(bool8);
diff --git a/src/battle_anim.c b/src/battle_anim.c
index a667c61772..b265bf7bce 100644
--- a/src/battle_anim.c
+++ b/src/battle_anim.c
@@ -2936,7 +2936,7 @@ s8 BattleAnimAdjustPanning2(s8 pan)
     return pan;
 }
 
-s16 KeepPanInRange(s16 panArg)
+s16 KeepPanInRange(s16 panArg, int oldPan)
 {
     s16 pan = panArg;
 
diff --git a/src/battle_anim_sound_tasks.c b/src/battle_anim_sound_tasks.c
index e5f0cd1652..8f90a6a166 100644
--- a/src/battle_anim_sound_tasks.c
+++ b/src/battle_anim_sound_tasks.c
@@ -53,7 +53,7 @@ static void sub_8158B98(u8 taskId)
             PlaySE12WithPanning(gTasks[taskId].data[0], pan);
         }
         pan += panIncrement;
-        gTasks[taskId].data[2] = KeepPanInRange(pan);
+        gTasks[taskId].data[2] = KeepPanInRange(pan, panIncrement);
     }
 }
 
@@ -116,9 +116,12 @@ static void sub_8158D08(u8 taskId)
 
     if (gTasks[taskId].data[10]++ == gTasks[taskId].data[5])
     {
+		u16 dPan, oldPan;
         gTasks[taskId].data[10] = 0;
-        gTasks[taskId].data[11] += gTasks[taskId].data[3];
-        gTasks[taskId].data[11] = KeepPanInRange(gTasks[taskId].data[11]);
+		dPan = gTasks[taskId].data[3];
+		oldPan = gTasks[taskId].data[11] ;
+        gTasks[taskId].data[11] = dPan + oldPan;
+        gTasks[taskId].data[11] = KeepPanInRange(gTasks[taskId].data[11], oldPan);
     }
 }
 // task end
@@ -368,71 +371,21 @@ void sub_8159278(u8 taskId)
     sub_8159308(taskId);
 }
 
-#ifdef NONMATCHING
 void sub_8159308(u8 taskId)
 {
-    s16 panIncrement = gTasks[taskId].data[3];
+    u16 panIncrement = gTasks[taskId].data[3];
 
     if (gTasks[taskId].data[10]++ == gTasks[taskId].data[5])
     {
+		u16 oldPan;
         gTasks[taskId].data[10] = 0;
-
-        gTasks[taskId].data[11] += panIncrement;
-        gTasks[taskId].data[11] = KeepPanInRange(gTasks[taskId].data[11]);
+		oldPan = gTasks[taskId].data[11];
+        gTasks[taskId].data[11] = panIncrement + oldPan; 
+        gTasks[taskId].data[11] = KeepPanInRange(gTasks[taskId].data[11], oldPan);
     }
 
     gUnknown_02038440 = gTasks[taskId].data[11];
     if (gTasks[taskId].data[11] == gTasks[taskId].data[2])
         DestroyAnimVisualTask(taskId);
 }
-#else
-NAKED
-void sub_8159308(u8 taskId)
-{
-    asm_unified("    push {r4,r5,lr}\n\
-    lsls r0, 24\n\
-    lsrs r0, 24\n\
-    adds r5, r0, 0\n\
-    ldr r1, =gTasks\n\
-    lsls r0, r5, 2\n\
-    adds r0, r5\n\
-    lsls r0, 3\n\
-    adds r4, r0, r1\n\
-    ldrh r2, [r4, 0xE]\n\
-    ldrh r0, [r4, 0x1C]\n\
-    adds r1, r0, 0x1\n\
-    strh r1, [r4, 0x1C]\n\
-    lsls r0, 16\n\
-    asrs r0, 16\n\
-    movs r3, 0x12\n\
-    ldrsh r1, [r4, r3]\n\
-    cmp r0, r1\n\
-    bne _08159342\n\
-    movs r0, 0\n\
-    strh r0, [r4, 0x1C]\n\
-    ldrh r1, [r4, 0x1E]\n\
-    adds r0, r2, r1\n\
-    strh r0, [r4, 0x1E]\n\
-    movs r2, 0x1E\n\
-    ldrsh r0, [r4, r2]\n\
-    bl KeepPanInRange\n\
-    strh r0, [r4, 0x1E]\n\
-_08159342:\n\
-    ldr r1, =gUnknown_02038440\n\
-    ldrh r0, [r4, 0x1E]\n\
-    strb r0, [r1]\n\
-    movs r3, 0x1E\n\
-    ldrsh r1, [r4, r3]\n\
-    movs r2, 0xC\n\
-    ldrsh r0, [r4, r2]\n\
-    cmp r1, r0\n\
-    bne _0815935A\n\
-    adds r0, r5, 0\n\
-    bl DestroyAnimVisualTask\n\
-_0815935A:\n\
-    pop {r4,r5}\n\
-    pop {r0}\n\
-    bx r0\n\
-    .pool");
-}
-#endif
+