Merge branch 'master' of github.com:pret/pokeemerald

1 files changed, 218 insertions, 0 deletions

diff --git a/src/rom_81520A8.c b/src/rom_81520A8.c
new file mode 100644
index 000000000..f6d14d49c
--- /dev/null
+++ b/src/rom_81520A8.c
@@ -0,0 +1,218 @@
+#include "global.h"
+#include "rom_81520A8.h"
+#include "malloc.h"
+#include "main.h"
+#include "rom_8034C54.h"
+
+static EWRAM_DATA struct
+{
+    u8 count;
+    struct UnkStruct_81520A8 *unk4;
+} *sUnknown_0203ABB8 = NULL;
+
+void sub_81520A8(void *dest, u16 value, u8 left, u8 top, u8 width, u8 height) // Unused.
+{
+    u8 i;
+    u8 j;
+    u8 x;
+    u8 y;
+
+    for (i = 0, y = top; i < height; i++)
+    {
+        for (x = left, j = 0; j < width; j++)
+        {
+            *(u16 *)((dest) + (y * 64 + x * 2)) = value;
+            x = (x + 1) % 32;
+        }
+        y = (y + 1) % 32;
+    }
+}
+
+void sub_8152134(void *dest, const u16 *src, u8 left, u8 top, u8 width, u8 height) // Unused.
+{
+    u8 i;
+    u8 j;
+    u8 x;
+    u8 y;
+    const u16 *_src;
+
+    for (i = 0, _src = src, y = top; i < height; i++)
+    {
+        for (x = left, j = 0; j < width; j++)
+        {
+            *(u16 *)((dest) + (y * 64 + x * 2)) = *(_src++);
+            x = (x + 1) % 32;
+        }
+        y = (y + 1) % 32;
+    }
+}
+
+bool32 sub_81521C0(u8 count)
+{
+    u8 i = 0;
+
+    if (count == 0)
+        return FALSE;
+    if (count > 64)
+        count = 64;
+
+    sUnknown_0203ABB8 = AllocZeroed(sizeof(*sUnknown_0203ABB8));
+    if (sUnknown_0203ABB8 == NULL)
+        return FALSE;
+    sUnknown_0203ABB8->unk4 = AllocZeroed(count * sizeof(struct UnkStruct_81520A8));
+    if (sUnknown_0203ABB8->unk4 == NULL)
+    {
+        FREE_AND_SET_NULL(sUnknown_0203ABB8);
+        return FALSE;
+    }
+
+    sUnknown_0203ABB8->count = count;
+    for (i = 0; i < count; i++)
+    {
+        memcpy(&sUnknown_0203ABB8->unk4[i].oam, &gDummyOamData, sizeof(struct OamData));
+        sUnknown_0203ABB8->unk4[i].unk19_2 = TRUE;
+    }
+
+    return TRUE;
+}
+
+bool32 sub_8152254(void)
+{
+    u8 i = 0;
+
+    if (sUnknown_0203ABB8 == NULL)
+        return FALSE;
+
+    for (i = 0; i < sUnknown_0203ABB8->count; i++)
+        memcpy(&gMain.oamBuffer[i + 64], &gDummyOamData, sizeof(struct OamData));
+
+    memset(sUnknown_0203ABB8->unk4, 0, sUnknown_0203ABB8->count * sizeof(struct UnkStruct_81520A8));
+    FREE_AND_SET_NULL(sUnknown_0203ABB8->unk4);
+    memset(sUnknown_0203ABB8, 0, sizeof(*sUnknown_0203ABB8));
+    FREE_AND_SET_NULL(sUnknown_0203ABB8);
+
+    return TRUE;
+}
+
+bool32 sub_81522D4(void)
+{
+    u8 i = 0;
+
+    if (sUnknown_0203ABB8 == NULL || sUnknown_0203ABB8->unk4 == NULL)
+        return FALSE;
+
+    for (i = 0; i < sUnknown_0203ABB8->count; i++)
+    {
+        if (sUnknown_0203ABB8->unk4[i].unk19_0 && sUnknown_0203ABB8->unk4[i].unk19_1)
+        {
+            if (sUnknown_0203ABB8->unk4[i].callback != NULL)
+                sUnknown_0203ABB8->unk4[i].callback(&sUnknown_0203ABB8->unk4[i]);
+
+            if (sUnknown_0203ABB8->unk4[i].unk19_2)
+            {
+                memcpy(&gMain.oamBuffer[i + 64], &gDummyOamData, sizeof(struct OamData));
+            }
+            else
+            {
+                sUnknown_0203ABB8->unk4[i].oam.y = sUnknown_0203ABB8->unk4[i].y + sUnknown_0203ABB8->unk4[i].yDelta;
+                sUnknown_0203ABB8->unk4[i].oam.x = sUnknown_0203ABB8->unk4[i].x + sUnknown_0203ABB8->unk4[i].xDelta;
+                sUnknown_0203ABB8->unk4[i].oam.priority = sUnknown_0203ABB8->unk4[i].priority;
+                sUnknown_0203ABB8->unk4[i].oam.tileNum = sUnknown_0203ABB8->unk4[i].tileNum;
+                memcpy(&gMain.oamBuffer[i + 64], &sUnknown_0203ABB8->unk4[i], sizeof(struct OamData));
+            }
+        }
+    }
+
+    return TRUE;
+}
+
+static bool32 sub_81523F4(struct UnkStruct_81520A8 *structPtr, u8 arg1)
+{
+    u16 tileStart;
+
+    if (structPtr == NULL)
+        return FALSE;
+
+    tileStart = GetSpriteTileStartByTag(structPtr->tileTag);
+    if (tileStart == 0xFFFF)
+        return FALSE;
+
+    structPtr->unk18 = arg1;
+    structPtr->tileNum = (sub_80355F8(structPtr->oam.shape, structPtr->oam.size) * arg1) + tileStart;
+    return TRUE;
+}
+
+u8 sub_8152438(u8 id, void (*func)(struct UnkStruct_81520A8 *))
+{
+    if (sUnknown_0203ABB8 == NULL || id >= sUnknown_0203ABB8->count)
+        return 0xFF;
+    else if (!sUnknown_0203ABB8->unk4[id].unk19_0)
+        return 0xFF;
+
+    sUnknown_0203ABB8->unk4[id].callback = func;
+    return id;
+}
+
+u8 sub_8152474(u8 id, u8 dataArrayId, s16 dataValue)
+{
+    if (sUnknown_0203ABB8 == NULL || id >= sUnknown_0203ABB8->count)
+        return 0xFF;
+    else if (!sUnknown_0203ABB8->unk4[id].unk19_0 || dataArrayId >= ARRAY_COUNT(sUnknown_0203ABB8->unk4[id].data))
+        return 0xFF;
+
+    sUnknown_0203ABB8->unk4[id].data[dataArrayId] = dataValue;
+    return id;
+}
+
+u8 sub_81524C4(const struct OamData *oam, u16 tileTag, u16 palTag, s16 x, s16 y, u8 arg5, u8 priority)
+{
+    struct UnkStruct_81520A8 *structPtr = NULL;
+    u8 i;
+
+    if (sUnknown_0203ABB8 == NULL || oam == NULL)
+        return 0xFF;
+
+    for (i = 0; i < sUnknown_0203ABB8->count; i++)
+    {
+        if (!sUnknown_0203ABB8->unk4[i].unk19_0)
+        {
+            structPtr = &sUnknown_0203ABB8->unk4[i];
+            memset(structPtr, 0, sizeof(*structPtr));
+            structPtr->id = i;
+            structPtr->unk19_0 = TRUE;
+            structPtr->unk19_1 = TRUE;
+            break;
+        }
+    }
+
+    if (structPtr == NULL)
+        return 0xFF;
+
+    memcpy(&structPtr->oam, oam, sizeof(*oam));
+    structPtr->tileTag = tileTag;
+    structPtr->palTag = palTag;
+    structPtr->x = x;
+    structPtr->y = y;
+    structPtr->oam.paletteNum = IndexOfSpritePaletteTag(palTag);
+    if (priority < 4)
+    {
+        structPtr->priority = priority;
+        structPtr->oam.priority = priority;
+    }
+    sub_81523F4(structPtr, arg5);
+
+    return structPtr->id;
+}
+
+u8 sub_81525D0(u8 id)
+{
+    if (sUnknown_0203ABB8 == NULL || !sUnknown_0203ABB8->unk4[id].unk19_0)
+        return 0xFF;
+
+    memset(&sUnknown_0203ABB8->unk4[id], 0, sizeof(struct UnkStruct_81520A8));
+    sUnknown_0203ABB8->unk4[id].oam.y = 160;
+    sUnknown_0203ABB8->unk4[id].oam.x = 240;
+    sUnknown_0203ABB8->unk4[id].unk19_2 = TRUE;
+    memcpy(&gMain.oamBuffer[id + 64], &gDummyOamData, sizeof(struct OamData));
+    return id;
+}