1 files changed, 117 insertions, 0 deletions
diff --git a/src/pc_screen_effect.c b/src/pc_screen_effect.c
new file mode 100644
index 000000000..dcc3bc9c9
--- /dev/null
+++ b/src/pc_screen_effect.c
@@ -0,0 +1,117 @@
+#include "global.h"
+#include "main.h"
+#include "palette.h"
+#include "sprite.h"
+#include "pc_screen_effect.h"
+
+void sub_80C603C(void);
+void sub_80C6078(void);
+void sub_80C60CC(struct Sprite *);
+void sub_80C6130(struct Sprite *);
+void sub_80C61B0(IntrFunc);
+void ClearGpuRegBits(void);
+
+extern const struct OamData gOamData_83D18D8;
+
+extern const union AnimCmd *const gSpriteAnimTable_83D18E8[];
+
+extern const u16 gUnknownPal_083D18EC[16];
+
+extern const u8 gUnknownGfx_083D190C[128];
+
+EWRAM_DATA struct PCScreenEffectStruct *gUnknown_020387EC = NULL;
+
+const struct SpriteSheet gUnknown_083D1898 = { gUnknownGfx_083D190C, sizeof(gUnknownGfx_083D190C), 0 };
+
+const struct SpritePalette gUnknown_083D18A0 = { gUnknownPal_083D18EC, 0 };
+
+const struct SpriteTemplate gSpriteTemplate_83D18A8 =
+{
+    0,
+    0,
+    &gOamData_83D18D8,
+    gSpriteAnimTable_83D18E8,
+    NULL,
+    gDummySpriteAffineAnimTable,
+    sub_80C60CC,
+};
+
+const struct SpriteTemplate gSpriteTemplate_83D18C0 =
+{
+    0,
+    0,
+    &gOamData_83D18D8,
+    gSpriteAnimTable_83D18E8,
+    NULL,
+    gDummySpriteAffineAnimTable,
+    sub_80C6130,
+};
+
+void sub_80C5CD4(struct PCScreenEffectStruct *unkStruct)
+{
+    u16 i;
+
+    struct SpriteSheet sprSheet = gUnknown_083D1898;
+    struct SpritePalette sprPalette = gUnknown_083D18A0;
+    struct SpriteTemplate sprTemplate = gSpriteTemplate_83D18A8;
+
+    sprSheet.tag = unkStruct->tileTag;
+    sprTemplate.tileTag =  unkStruct->tileTag;
+    sprPalette.tag = unkStruct->paletteTag;
+    sprTemplate.paletteTag = unkStruct->paletteTag;
+
+    LoadSpriteSheet(&sprSheet);
+    LoadSpritePalette(&sprPalette);
+
+    unkStruct->unk0C = 1;
+    unkStruct->unk0A = 0;
+    unkStruct->unk08 = 0;
+    unkStruct->selectedPalettes  = ~(0x10000 << IndexOfSpritePaletteTag(unkStruct->paletteTag)) & 0xFFFF0000;
+
+    if (unkStruct->unk04 == 0)
+        unkStruct->unk04 = 16;
+
+    if (unkStruct->unk06 == 0)
+        unkStruct->unk06 = 20;
+
+    gUnknown_020387EC = unkStruct;
+
+    for (i = 0; i < 8; i++)
+    {
+        u8 spriteId = CreateSprite(&sprTemplate, 32 * i + 8, 80, 0);
+        if (spriteId == MAX_SPRITES)
+            break;
+        gSprites[spriteId].data[0] = (i < 4) ? -unkStruct->unk04 : unkStruct->unk04;
+    }
+
+    REG_BLDCNT = 191;
+    REG_BLDY = 16;
+}
+
+bool8 sub_80C5DCC(void)
+{
+    if (gUnknown_020387EC->unk08 == 0)
+    {
+        BlendPalettes(gUnknown_020387EC->selectedPalettes, 0x10, 0xFFFF);
+        sub_80C61B0(sub_80C603C);
+        gUnknown_020387EC->unk08++;
+    }
+
+    if (gUnknown_020387EC->unk0A < 8)
+        return FALSE;
+
+    gUnknown_020387EC->unk0C += gUnknown_020387EC->unk06;
+
+    if (gUnknown_020387EC->unk0C >= 80)
+    {
+        gUnknown_020387EC->unk0C = 80;
+        REG_BLDCNT = 0;
+        REG_BLDY = 0;
+        ClearGpuRegBits();
+        return TRUE;
+    }
+    else
+    {
+        return FALSE;
+    }
+}