Decompile tileset_anims

2019-08-05 01:00:59 -07:00
parent d58bf398b2
commit 7ae9d90566
7 changed files with 263 additions and 700 deletions
@@ -0,0 +1,248 @@
+#include "global.h"
+#include "graphics.h"
+#include "palette.h"
+#include "util.h"
+#include "battle_transition.h"
+#include "task.h"
+#include "fieldmap.h"
+
+static EWRAM_DATA struct {
+    const u16 *src;
+    u16 *dest;
+    u16 size;
+} sTilesetDMA3TransferBuffer[20] = {0};
+
+static u8 sTilesetDMA3TransferBufferSize;
+static u16 sPrimaryTilesetAnimCounter;
+static u16 sPrimaryTilesetAnimCounterMax;
+static u16 sSecondaryTilesetAnimCounter;
+static u16 sSecondaryTilesetAnimCounterMax;
+static void (*sPrimaryTilesetAnimCallback)(u16);
+static void (*sSecondaryTilesetAnimCallback)(u16);
+
+static void _InitPrimaryTilesetAnimation(void);
+static void _InitSecondaryTilesetAnimation(void);
+
+extern const u16 *const gUnknown_83A7660[];
+extern const u16 *const gUnknown_83AA654[];
+extern const u16 *const gUnknown_83AB874[];
+extern const u16 *const gUnknown_83ABDB4[];
+extern const u16 *const gUnknown_83AC1E8[];
+extern const u16 *const gUnknown_83AC5F8[];
+extern const u16 *const gUnknown_83AC7C8[];
+extern const u16 *const gUnknown_83AC950[];
+
+static void ResetTilesetAnimBuffer(void)
+{
+    sTilesetDMA3TransferBufferSize = 0;
+    CpuFill32(0, sTilesetDMA3TransferBuffer, sizeof sTilesetDMA3TransferBuffer);
+}
+
+static void AppendTilesetAnimToBuffer(const u16 *src, u16 *dest, u16 size)
+{
+    if (sTilesetDMA3TransferBufferSize < 20)
+    {
+        sTilesetDMA3TransferBuffer[sTilesetDMA3TransferBufferSize].src = src;
+        sTilesetDMA3TransferBuffer[sTilesetDMA3TransferBufferSize].dest = dest;
+        sTilesetDMA3TransferBuffer[sTilesetDMA3TransferBufferSize].size = size;
+        sTilesetDMA3TransferBufferSize ++;
+    }
+}
+
+void TransferTilesetAnimsBuffer(void)
+{
+    int i;
+
+    for (i = 0; i < sTilesetDMA3TransferBufferSize; i ++)
+        DmaCopy16(3, sTilesetDMA3TransferBuffer[i].src, sTilesetDMA3TransferBuffer[i].dest, sTilesetDMA3TransferBuffer[i].size);
+
+    sTilesetDMA3TransferBufferSize = 0;
+}
+
+void InitTilesetAnimations(void)
+{
+    ResetTilesetAnimBuffer();
+    _InitPrimaryTilesetAnimation();
+    _InitSecondaryTilesetAnimation();
+}
+
+void InitSecondaryTilesetAnimation(void)
+{
+    _InitSecondaryTilesetAnimation();
+}
+
+void UpdateTilesetAnimations(void)
+{
+    ResetTilesetAnimBuffer();
+    if (++sPrimaryTilesetAnimCounter >= sPrimaryTilesetAnimCounterMax)
+        sPrimaryTilesetAnimCounter = 0;
+    if (++sSecondaryTilesetAnimCounter >= sSecondaryTilesetAnimCounterMax)
+        sSecondaryTilesetAnimCounter = 0;
+
+    if (sPrimaryTilesetAnimCallback)
+        sPrimaryTilesetAnimCallback(sPrimaryTilesetAnimCounter);
+    if (sSecondaryTilesetAnimCallback)
+        sSecondaryTilesetAnimCallback(sSecondaryTilesetAnimCounter);
+}
+
+static void _InitPrimaryTilesetAnimation(void)
+{
+    sPrimaryTilesetAnimCounter = 0;
+    sPrimaryTilesetAnimCounterMax = 0;
+    sPrimaryTilesetAnimCallback = NULL;
+    if (gMapHeader.mapData->primaryTileset && gMapHeader.mapData->primaryTileset->callback)
+        gMapHeader.mapData->primaryTileset->callback();
+}
+
+static void _InitSecondaryTilesetAnimation(void)
+{
+    sSecondaryTilesetAnimCounter = 0;
+    sSecondaryTilesetAnimCounterMax = 0;
+    sSecondaryTilesetAnimCallback = NULL;
+    if (gMapHeader.mapData->secondaryTileset && gMapHeader.mapData->secondaryTileset->callback)
+        gMapHeader.mapData->secondaryTileset->callback();
+}
+
+static void sub_80700A4(u16 timer)
+{
+    const u16 *const *ptr = gUnknown_83A7660;
+    u16 i = timer % 5;
+    
+    AppendTilesetAnimToBuffer(ptr[i], (u16 *)(BG_VRAM + TILE_OFFSET_4BPP(508)), 0x80);
+}
+
+static void sub_80700D0(u16 timer)
+{
+    const u16 *const *ptr = gUnknown_83AA654;
+    u16 i = timer % 8;
+    
+    AppendTilesetAnimToBuffer(ptr[i], (u16 *)(BG_VRAM + TILE_OFFSET_4BPP(416)), 0x600);
+}
+
+static void sub_80700F8(u16 timer)
+{
+    const u16 *const *ptr = gUnknown_83AB874;
+    u16 i = timer % 8;
+    
+    AppendTilesetAnimToBuffer(ptr[i], (u16 *)(BG_VRAM + TILE_OFFSET_4BPP(464)), 0x240);
+}
+
+static void sub_8070120(u16 timer)
+{
+    if (timer % 8 == 0)
+        sub_80700F8(timer >> 3);
+    if (timer % 16 == 1)
+        sub_80700D0(timer >> 4);
+    if (timer % 16 == 2)
+        sub_80700A4(timer >> 4);
+}
+
+void sub_8070154(void)
+{
+    sPrimaryTilesetAnimCounter = 0;
+    sPrimaryTilesetAnimCounterMax = 640;
+    sPrimaryTilesetAnimCallback = sub_8070120;
+}
+
+static void sub_807017C(u16 timer)
+{
+    const u16 *const *ptr = gUnknown_83ABDB4;
+    u16 i = timer % 5;
+    
+    AppendTilesetAnimToBuffer(ptr[i], (u16 *)(BG_VRAM + TILE_OFFSET_4BPP(744)), 0x100);
+}
+
+static void sub_80701AC(u16 timer)
+{
+    if (timer % 12 == 0)
+        sub_807017C(timer / 12);
+}
+
+void sub_80701D8(void)
+{
+    sSecondaryTilesetAnimCounter = 0;
+    sSecondaryTilesetAnimCounterMax = 120;
+    sSecondaryTilesetAnimCallback = sub_80701AC;
+}
+
+static void sub_80701FC(u16 timer)
+{
+    const u16 *const *ptr = gUnknown_83AC1E8;
+    u16 i = timer % 4;
+    
+    AppendTilesetAnimToBuffer(ptr[i], (u16 *)(BG_VRAM + TILE_OFFSET_4BPP(976)), 0x100);
+}
+
+static void sub_8070224(u16 timer)
+{
+    if (timer % 10 == 0)
+        sub_80701FC(timer / 10);
+}
+
+void sub_8070250(void)
+{
+    sSecondaryTilesetAnimCounter = 0;
+    sSecondaryTilesetAnimCounterMax = 160;
+    sSecondaryTilesetAnimCallback = sub_8070224;
+}
+
+static void sub_8070274(u16 timer)
+{
+    const u16 *const *ptr = gUnknown_83AC5F8;
+    u16 i = timer % 4;
+    
+    AppendTilesetAnimToBuffer(ptr[i], (u16 *)(BG_VRAM + TILE_OFFSET_4BPP(896)), 0x100);
+}
+
+static void sub_807029C(u16 timer)
+{
+    if (timer % 16 == 0)
+        sub_8070274(timer >> 4);
+}
+
+void sub_80702B4(void)
+{
+    sSecondaryTilesetAnimCounter = 0;
+    sSecondaryTilesetAnimCounterMax = 256;
+    sSecondaryTilesetAnimCallback = sub_807029C;
+}
+
+static void sub_80702DC(u16 timer)
+{
+    u16 i = timer % 2;
+    
+    AppendTilesetAnimToBuffer(gUnknown_83AC7C8[i], (u16 *)(BG_VRAM + TILE_OFFSET_4BPP(880)), 0xE0);
+}
+
+static void sub_8070304(u16 timer)
+{
+    if (timer % 2 == 0)
+        sub_80702DC(timer >> 1);
+}
+
+void sub_807031C(void)
+{
+    sSecondaryTilesetAnimCounter = 0;
+    sSecondaryTilesetAnimCounterMax = 240;
+    sSecondaryTilesetAnimCallback = sub_8070304;
+}
+
+static void sub_8070340(u16 timer)
+{
+    u16 i = timer % 4;
+    
+    AppendTilesetAnimToBuffer(gUnknown_83AC950[i], (u16 *)(BG_VRAM + TILE_OFFSET_4BPP(739)), 0x80);
+}
+
+static void sub_8070368(u16 timer)
+{
+    if (timer % 16 == 0)
+        sub_8070340(timer >> 4);
+}
+
+void sub_8070380(void)
+{
+    sSecondaryTilesetAnimCounter = 0;
+    sSecondaryTilesetAnimCounterMax = 256;
+    sSecondaryTilesetAnimCallback = sub_8070368;
+}