1 files changed, 71 insertions, 0 deletions
diff --git a/src/smokescreen.c b/src/smokescreen.c
new file mode 100644
index 000000000..9b37cd234
--- /dev/null
+++ b/src/smokescreen.c
@@ -0,0 +1,71 @@
+#include "global.h"
+#include "data2.h"
+#include "decompress.h"
+#include "sprite.h"
+#include "util.h"
+
+static void sub_8075370(struct Sprite *);
+
+u8 sub_807521C(s16 x, s16 y, u8 a3)
+{
+    u8 mainSpriteId;
+    u8 spriteId1, spriteId2, spriteId3, spriteId4;
+    struct Sprite *mainSprite;
+
+    if (GetSpriteTileStartByTag(gUnknown_0831C620.tag) == 0xFFFF)
+    {
+        LoadCompressedObjectPicUsingHeap(&gUnknown_0831C620);
+        LoadCompressedObjectPaletteUsingHeap(&gUnknown_0831C628);
+    }
+
+    mainSpriteId = CreateInvisibleSpriteWithCallback(sub_8075370);
+    mainSprite = &gSprites[mainSpriteId];
+    mainSprite->data[1] = a3;
+
+    spriteId1 = CreateSprite(&gUnknown_0831C688, x - 16, y - 16, 2);
+    gSprites[spriteId1].data[0] = mainSpriteId;
+    mainSprite->data[0]++;
+    AnimateSprite(&gSprites[spriteId1]);
+
+    spriteId2 = CreateSprite(&gUnknown_0831C688, x, y - 16, 2);
+    gSprites[spriteId2].data[0] = mainSpriteId;
+    mainSprite->data[0]++;
+    StartSpriteAnim(&gSprites[spriteId2], 1);
+    AnimateSprite(&gSprites[spriteId2]);
+
+    spriteId3 = CreateSprite(&gUnknown_0831C688, x - 16, y, 2);
+    gSprites[spriteId3].data[0] = mainSpriteId;
+    mainSprite->data[0]++;
+    StartSpriteAnim(&gSprites[spriteId3], 2);
+    AnimateSprite(&gSprites[spriteId3]);
+
+    spriteId4 = CreateSprite(&gUnknown_0831C688, x, y, 2);
+    gSprites[spriteId4].data[0] = mainSpriteId;
+    mainSprite->data[0]++;
+    StartSpriteAnim(&gSprites[spriteId4], 3);
+    AnimateSprite(&gSprites[spriteId4]);
+
+    return mainSpriteId;
+}
+
+static void sub_8075370(struct Sprite *sprite)
+{
+    if (!sprite->data[0])
+    {
+        FreeSpriteTilesByTag(gUnknown_0831C620.tag);
+        FreeSpritePaletteByTag(gUnknown_0831C628.tag);
+        if (!sprite->data[1])
+            DestroySprite(sprite);
+        else
+            sprite->callback = SpriteCallbackDummy;
+    }
+}
+
+void sub_80753B4(struct Sprite *sprite)
+{
+    if (sprite->animEnded)
+    {
+        gSprites[sprite->data[0]].data[0]--;
+        DestroySprite(sprite);
+    }
+}