decompile rom_8034C54

1 files changed, 339 insertions, 83 deletions

diff --git a/src/rom_8034C54.c b/src/rom_8034C54.c
index f2fccd606..42df51295 100644
--- a/src/rom_8034C54.c
+++ b/src/rom_8034C54.c
@@ -1,29 +1,15 @@
 #include "global.h"
+#include "rom_8034C54.h"
 #include "malloc.h"
 #include "decompress.h"
 #include "main.h"
 
-struct UnkStruct3
-{
-    u8 field_0_0:2;
-    u8 shape:2;
-    u8 size:2;
-    u8 priority:2;
-    u8 field_1;
-    u8 xDelta;
-    u8 field_3;
-    s16 x;
-    s16 y;
-    const struct SpriteSheet *spriteSheet;
-    const struct SpritePalette *spritePal;
-};
-
 struct UnkStruct2
 {
-    u8 field_0;
-    u8 field_1;
+    bool8 isActive;
+    u8 firstOamId;
     u8 field_2;
-    u8 field_3;
+    u8 oamCount;
     u8 palTagIndex;
     u8 size;
     u8 shape;
@@ -36,31 +22,42 @@ struct UnkStruct2
     u16 tileTag;
     u16 palTag;
     u32 field_14;
-    u8 field_18;
-    u8 field_19;
-    u8 field_1A;
-    u8 field_1B;
+    s32 field_18;
 };
 
 struct UnkStruct1
 {
     u32 count;
-    struct UnkStruct2 *field_4;
+    struct UnkStruct2 *array;
 };
 
-IWRAM_DATA u32 gUnknown_03000DD4;
-IWRAM_DATA u32 gUnknown_03000DD8;
-IWRAM_DATA u32 gUnknown_03000DDC;
-
 extern struct UnkStruct1 *gUnknown_02022E10;
 
+extern const struct SpriteTemplate gUnknown_0831AC88;
+
 // this file's functions
-void sub_8034CC8(void);
-void sub_80353DC(u32 id);
-u8 sub_8035518(u8 arg0);
-u8 sub_80355F8(u32 arg0, u32 arg1);
-void sub_8034EFC(struct UnkStruct2 *arg0);
-void sub_8035044(u32 id, u32 arg1);
+static u8 sub_8035518(u8 arg0);;
+static void sub_8034EFC(struct UnkStruct2 *arg0);
+static void sub_80350B0(struct UnkStruct2 *arg0, s32 arg1, bool32 arg2);
+static void sub_8035164(struct UnkStruct2 *arg0, s32 arg1, bool32 arg2);
+static void sub_80352C0(struct UnkStruct2 *arg0, s32 arg1, bool32 arg2);
+static bool32 SharesTileWithAnyActive(u32 id);
+static bool32 SharesPalWithAnyActive(u32 id);
+static void sub_8035648(void);
+
+// iwram
+static IWRAM_DATA s32 gUnknown_03000DD4;
+static IWRAM_DATA s32 gUnknown_03000DD8;
+static IWRAM_DATA s32 gUnknown_03000DDC;
+
+// const rom data
+static const u8 gUnknown_082FF1C8[][4] =
+{
+    {0x01, 0x04, 0x10, 0x40},
+    {0x02, 0x04, 0x08, 0x20},
+    {0x02, 0x04, 0x08, 0x20},
+    {0x00, 0x00, 0x00, 0x00}
+};
 
 // code
 bool32 sub_8034C54(u32 count)
@@ -74,8 +71,8 @@ bool32 sub_8034C54(u32 count)
     if (gUnknown_02022E10 == NULL)
         return FALSE;
 
-    gUnknown_02022E10->field_4 = Alloc(sizeof(struct UnkStruct2) * count);
-    if (gUnknown_02022E10->field_4 == NULL)
+    gUnknown_02022E10->array = Alloc(sizeof(struct UnkStruct2) * count);
+    if (gUnknown_02022E10->array == NULL)
     {
         Free(gUnknown_02022E10);
         return FALSE;
@@ -84,8 +81,8 @@ bool32 sub_8034C54(u32 count)
     gUnknown_02022E10->count = count;
     for (i = 0; i < count; i++)
     {
-        gUnknown_02022E10->field_4[i].field_0 = 0;
-        gUnknown_02022E10->field_4[i].field_1 |= 0xFF;
+        gUnknown_02022E10->array[i].isActive = FALSE;
+        gUnknown_02022E10->array[i].firstOamId |= 0xFF;
     }
 
     return TRUE;
@@ -95,39 +92,39 @@ void sub_8034CC8(void)
 {
     if (gUnknown_02022E10 != NULL)
     {
-        if (gUnknown_02022E10->field_4 != NULL)
+        if (gUnknown_02022E10->array != NULL)
         {
             u32 i;
 
             for (i = 0; i < gUnknown_02022E10->count; i++)
                 sub_80353DC(i);
 
-            Free(gUnknown_02022E10->field_4);
+            Free(gUnknown_02022E10->array);
         }
 
         FREE_AND_SET_NULL(gUnknown_02022E10);
     }
 }
 
-bool32 sub_8034D14(u32 id, u32 arg1, const struct UnkStruct3 *arg2)
+bool32 sub_8034D14(u32 id, s32 arg1, const struct UnkStruct3 *arg2)
 {
     u32 i;
 
     if (gUnknown_02022E10 == NULL)
         return FALSE;
-    if (gUnknown_02022E10->field_4[id].field_0 != 0)
+    if (gUnknown_02022E10->array[id].isActive)
         return FALSE;
 
-    gUnknown_02022E10->field_4[id].field_1 = sub_8035518(arg2->field_1);
-    if (gUnknown_02022E10->field_4[id].field_1 == 0xFF)
+    gUnknown_02022E10->array[id].firstOamId = sub_8035518(arg2->field_1);
+    if (gUnknown_02022E10->array[id].firstOamId == 0xFF)
         return FALSE;
 
-    gUnknown_02022E10->field_4[id].tileStart = GetSpriteTileStartByTag(arg2->spriteSheet->tag);
-    if (gUnknown_02022E10->field_4[id].tileStart == 0xFFFF)
+    gUnknown_02022E10->array[id].tileStart = GetSpriteTileStartByTag(arg2->spriteSheet->tag);
+    if (gUnknown_02022E10->array[id].tileStart == 0xFFFF)
     {
         if (arg2->spriteSheet->size != 0)
         {
-            gUnknown_02022E10->field_4[id].tileStart = LoadSpriteSheet(arg2->spriteSheet);
+            gUnknown_02022E10->array[id].tileStart = LoadSpriteSheet(arg2->spriteSheet);
         }
         else
         {
@@ -135,63 +132,322 @@ bool32 sub_8034D14(u32 id, u32 arg1, const struct UnkStruct3 *arg2)
 
             compSpriteSheet = *(struct CompressedSpriteSheet*)(arg2->spriteSheet);
             compSpriteSheet.size = GetDecompressedDataSize(arg2->spriteSheet->data);
-            gUnknown_02022E10->field_4[id].tileStart = LoadCompressedObjectPic(&compSpriteSheet);
+            gUnknown_02022E10->array[id].tileStart = LoadCompressedObjectPic(&compSpriteSheet);
         }
 
-        if (gUnknown_02022E10->field_4[id].tileStart == 0xFFFF)
+        if (gUnknown_02022E10->array[id].tileStart == 0xFFFF)
             return FALSE;
     }
 
-    gUnknown_02022E10->field_4[id].palTagIndex = IndexOfSpritePaletteTag(arg2->spritePal->tag);
-    if (gUnknown_02022E10->field_4[id].palTagIndex == 0xFF)
-        gUnknown_02022E10->field_4[id].palTagIndex = LoadSpritePalette(arg2->spritePal);
-
-    gUnknown_02022E10->field_4[id].field_2 = arg2->field_0_0;
-    gUnknown_02022E10->field_4[id].field_3 = arg2->field_1;
-    gUnknown_02022E10->field_4[id].x = arg2->x;
-    gUnknown_02022E10->field_4[id].y = arg2->y;
-    gUnknown_02022E10->field_4[id].shape = arg2->shape;
-    gUnknown_02022E10->field_4[id].size = arg2->size;
-    gUnknown_02022E10->field_4[id].priority = arg2->priority;
-    gUnknown_02022E10->field_4[id].xDelta = arg2->xDelta;
-    gUnknown_02022E10->field_4[id].field_9 = sub_80355F8(arg2->shape, arg2->size);
-    gUnknown_02022E10->field_4[id].tileTag = arg2->spriteSheet->tag;
-    gUnknown_02022E10->field_4[id].palTag = arg2->spritePal->tag;
-    gUnknown_02022E10->field_4[id].field_0 = 1;
-    gUnknown_02022E10->field_4[id].field_14 = 1;
+    gUnknown_02022E10->array[id].palTagIndex = IndexOfSpritePaletteTag(arg2->spritePal->tag);
+    if (gUnknown_02022E10->array[id].palTagIndex == 0xFF)
+        gUnknown_02022E10->array[id].palTagIndex = LoadSpritePalette(arg2->spritePal);
+
+    gUnknown_02022E10->array[id].field_2 = arg2->field_0_0;
+    gUnknown_02022E10->array[id].oamCount = arg2->field_1;
+    gUnknown_02022E10->array[id].x = arg2->x;
+    gUnknown_02022E10->array[id].y = arg2->y;
+    gUnknown_02022E10->array[id].shape = arg2->shape;
+    gUnknown_02022E10->array[id].size = arg2->size;
+    gUnknown_02022E10->array[id].priority = arg2->priority;
+    gUnknown_02022E10->array[id].xDelta = arg2->xDelta;
+    gUnknown_02022E10->array[id].field_9 = sub_80355F8(arg2->shape, arg2->size);
+    gUnknown_02022E10->array[id].tileTag = arg2->spriteSheet->tag;
+    gUnknown_02022E10->array[id].palTag = arg2->spritePal->tag;
+    gUnknown_02022E10->array[id].isActive = TRUE;
+    gUnknown_02022E10->array[id].field_14 = 1;
 
     for (i = 1; i < arg2->field_1; i++)
-        gUnknown_02022E10->field_4[id].field_14 *= 10;
+        gUnknown_02022E10->array[id].field_14 *= 10;
 
-    sub_8034EFC(&gUnknown_02022E10->field_4[id]);
+    sub_8034EFC(&gUnknown_02022E10->array[id]);
     sub_8035044(id, arg1);
 
     return TRUE;
 }
 
-void sub_8034EFC(struct UnkStruct2 *arg0)
+static void sub_8034EFC(struct UnkStruct2 *arg0)
 {
     u32 i;
-    u32 r5 = arg0->field_1;
+    u32 oamId = arg0->firstOamId;
     u32 x = arg0->x;
-    u32 r8 = arg0->field_3 + 1;
+    u32 oamCount = arg0->oamCount + 1;
 
-    CpuFill16(0, &gMain.oamBuffer[r5], sizeof(struct OamData) * r8);
-    for (i = 0, r5 = arg0->field_1; i < r8; i++, r5++)
+    CpuFill16(0, &gMain.oamBuffer[oamId], sizeof(struct OamData) * oamCount);
+    for (i = 0, oamId = arg0->firstOamId; i < oamCount; i++, oamId++)
     {
-        gMain.oamBuffer[r5].y = arg0->y;
-        gMain.oamBuffer[r5].x = x;
-        gMain.oamBuffer[r5].shape = arg0->shape;
-        gMain.oamBuffer[r5].size = arg0->size;
-        gMain.oamBuffer[r5].tileNum = arg0->tileStart;
-        gMain.oamBuffer[r5].priority = arg0->priority;
-        gMain.oamBuffer[r5].paletteNum = arg0->palTagIndex;
+        gMain.oamBuffer[oamId].y = arg0->y;
+        gMain.oamBuffer[oamId].x = x;
+        gMain.oamBuffer[oamId].shape = arg0->shape;
+        gMain.oamBuffer[oamId].size = arg0->size;
+        gMain.oamBuffer[oamId].tileNum = arg0->tileStart;
+        gMain.oamBuffer[oamId].priority = arg0->priority;
+        gMain.oamBuffer[oamId].paletteNum = arg0->palTagIndex;
 
         x += arg0->xDelta;
     }
 
-    r5--;
-    gMain.oamBuffer[r5].x = arg0->x - arg0->xDelta;
-    gMain.oamBuffer[r5].affineMode = 2;
-    gMain.oamBuffer[r5].tileNum = arg0->tileStart + (arg0->field_9 * 10);
+    oamId--;
+    gMain.oamBuffer[oamId].x = arg0->x - arg0->xDelta;
+    gMain.oamBuffer[oamId].affineMode = 2;
+    gMain.oamBuffer[oamId].tileNum = arg0->tileStart + (arg0->field_9 * 10);
+}
+
+void sub_8035044(u32 id, s32 arg1)
+{
+    bool32 r2;
+
+    if (gUnknown_02022E10 == NULL)
+        return;
+    if (!gUnknown_02022E10->array[id].isActive)
+        return;
+
+    gUnknown_02022E10->array[id].field_18 = arg1;
+    if (arg1 < 0)
+    {
+        r2 = TRUE;
+        arg1 *= -1;
+    }
+    else
+    {
+        r2 = FALSE;
+    }
+
+    switch (gUnknown_02022E10->array[id].field_2)
+    {
+    case 0:
+    default:
+        sub_80350B0(&gUnknown_02022E10->array[id], arg1, r2);
+        break;
+    case 1:
+        sub_8035164(&gUnknown_02022E10->array[id], arg1, r2);
+        break;
+    case 2:
+        sub_80352C0(&gUnknown_02022E10->array[id], arg1, r2);
+        break;
+    }
+}
+
+static void sub_80350B0(struct UnkStruct2 *arg0, s32 arg1, bool32 arg2)
+{
+    u32 r5 = arg0->field_14;
+    u32 oamId = arg0->firstOamId;
+
+    while (r5 != 0)
+    {
+        u32 r4 = arg1 / r5;
+        arg1 -= (r4 * r5);
+        r5 /= 10;
+
+        gMain.oamBuffer[oamId].tileNum = (r4 * arg0->field_9) + arg0->tileStart;
+        oamId++;
+    }
+
+    if (arg2)
+        gMain.oamBuffer[oamId].affineMode = 0;
+    else
+        gMain.oamBuffer[oamId].affineMode = 2;
+}
+
+static void sub_8035164(struct UnkStruct2 *arg0, s32 arg1, bool32 arg2)
+{
+    u32 r5 = arg0->field_14;
+    gUnknown_03000DD4 = arg0->firstOamId;
+    gUnknown_03000DD8 = 0;
+    gUnknown_03000DDC = -1;
+
+    while (r5 != 0)
+    {
+        u32 r4 = arg1 / r5;
+        arg1 -= (r4 * r5);
+        r5 /= 10;
+
+        if (r4 != 0 || gUnknown_03000DDC != -1 || r5 == 0)
+        {
+            gMain.oamBuffer[gUnknown_03000DD4].tileNum = (r4 * arg0->field_9) + arg0->tileStart;
+            gMain.oamBuffer[gUnknown_03000DD4].affineMode = 0;
+
+            if (gUnknown_03000DDC == -1)
+                gUnknown_03000DDC = gUnknown_03000DD8;
+        }
+        else
+        {
+            gMain.oamBuffer[gUnknown_03000DD4].affineMode = 2;
+        }
+
+        gUnknown_03000DD4++;
+        gUnknown_03000DD8++;
+    }
+
+    if (arg2)
+    {
+        gMain.oamBuffer[gUnknown_03000DD4].affineMode = 0;
+        gMain.oamBuffer[gUnknown_03000DD4].x = arg0->x + ((gUnknown_03000DDC - 1) * arg0->xDelta);
+    }
+    else
+    {
+        gMain.oamBuffer[gUnknown_03000DD4].affineMode = 2;
+    }
+}
+
+static void sub_80352C0(struct UnkStruct2 *arg0, s32 arg1, bool32 arg2)
+{
+    u32 r5 = arg0->field_14;
+    u32 oamId = arg0->firstOamId;
+    u32 var_28 = 0;
+    s32 r9 = 0;
+
+    while (r5 != 0)
+    {
+        u32 r4 = arg1 / r5;
+        arg1 -= (r4 * r5);
+        r5 /= 10;
+
+        if (r4 != 0 || var_28 != 0 || r5 == 0)
+        {
+            var_28 = 1;
+            gMain.oamBuffer[oamId].tileNum = (r4 * arg0->field_9) + arg0->tileStart;
+            gMain.oamBuffer[oamId].affineMode = 0;
+
+            oamId++;
+            r9++;
+        }
+    }
+
+    while (r9 < arg0->oamCount)
+    {
+        gMain.oamBuffer[oamId].affineMode = 2;
+        oamId++;
+        r9++;
+    }
+
+    if (arg2)
+        gMain.oamBuffer[oamId].affineMode = 0;
+    else
+        gMain.oamBuffer[oamId].affineMode = 2;
+}
+
+void sub_80353DC(u32 id)
+{
+    s32 oamId, oamCount, i;
+
+    if (gUnknown_02022E10 == NULL)
+        return;
+    if (!gUnknown_02022E10->array[id].isActive)
+        return;
+
+    oamCount = gUnknown_02022E10->array[id].oamCount + 1;
+    oamId = gUnknown_02022E10->array[id].firstOamId;
+
+    for (i = 0; i < oamCount; i++, oamId++)
+        gMain.oamBuffer[oamId].affineMode = 2;
+
+    if (!SharesTileWithAnyActive(id))
+        FreeSpriteTilesByTag(gUnknown_02022E10->array[id].tileTag);
+    if (!SharesPalWithAnyActive(id))
+        FreeSpritePaletteByTag(gUnknown_02022E10->array[id].palTag);
+
+    gUnknown_02022E10->array[id].isActive = FALSE;
+}
+
+void sub_803547C(u32 id, bool32 arg1)
+{
+    s32 oamId, oamCount, i;
+
+    if (gUnknown_02022E10 == NULL)
+        return;
+    if (!gUnknown_02022E10->array[id].isActive)
+        return;
+
+    oamCount = gUnknown_02022E10->array[id].oamCount + 1;
+    oamId = gUnknown_02022E10->array[id].firstOamId;
+    if (arg1)
+    {
+        for (i = 0; i < oamCount; i++, oamId++)
+            gMain.oamBuffer[oamId].affineMode = 2;
+    }
+    else
+    {
+        for (i = 0; i < oamCount; i++, oamId++)
+            gMain.oamBuffer[oamId].affineMode = 0;
+
+        sub_8035044(id, gUnknown_02022E10->array[id].field_18);
+    }
+}
+
+static u8 sub_8035518(u8 arg0)
+{
+    u32 i;
+    u16 oamCount = 64;
+
+    for (i = 0; i < gUnknown_02022E10->count; i++)
+    {
+        if (!gUnknown_02022E10->array[i].isActive)
+        {
+            if (gUnknown_02022E10->array[i].firstOamId != 0xFF && gUnknown_02022E10->array[i].oamCount <= arg0)
+                return gUnknown_02022E10->array[i].firstOamId;
+        }
+        else
+        {
+            oamCount += 1 + gUnknown_02022E10->array[i].oamCount;
+        }
+    }
+
+    if (oamCount + arg0 + 1 > 128)
+        return 0xFF;
+    else
+        return oamCount;
+}
+
+static bool32 SharesTileWithAnyActive(u32 id)
+{
+    u32 i;
+
+    for (i = 0; i < gUnknown_02022E10->count; i++)
+    {
+        if (gUnknown_02022E10->array[i].isActive && i != id
+            && gUnknown_02022E10->array[i].tileTag == gUnknown_02022E10->array[id].tileTag)
+        {
+            return TRUE;
+        }
+    }
+
+    return FALSE;
+}
+
+static bool32 SharesPalWithAnyActive(u32 id)
+{
+    u32 i;
+
+    for (i = 0; i < gUnknown_02022E10->count; i++)
+    {
+        if (gUnknown_02022E10->array[i].isActive && i != id
+            && gUnknown_02022E10->array[i].palTag == gUnknown_02022E10->array[id].palTag)
+        {
+            return TRUE;
+        }
+    }
+
+    return FALSE;
+}
+
+u8 sub_80355F8(u32 arg0, u32 arg1)
+{
+    return gUnknown_082FF1C8[arg0][arg1];
+}
+
+static void sub_8035608(void)
+{
+    u8 spriteId;
+
+    ResetSpriteData();
+    spriteId = CreateSprite(&gUnknown_0831AC88, 0, 0, 0);
+    gSprites[spriteId].invisible = 1;
+    SetMainCallback2(sub_8035648);
+}
+
+static void sub_8035648(void)
+{
+    AnimateSprites();
+    BuildOamBuffer();
 }