1 files changed, 62 insertions, 0 deletions
diff --git a/src/battle/anim/orbit_fast.c b/src/battle/anim/orbit_fast.c
new file mode 100755
index 000000000..30396f398
--- /dev/null
+++ b/src/battle/anim/orbit_fast.c
@@ -0,0 +1,62 @@
+#include "global.h"
+#include "rom_8077ABC.h"
+#include "trig.h"
+#include "battle_anim.h"
+#include "sound.h"
+
+extern s16 gBattleAnimArgs[];
+extern u8 gBattleAnimBankAttacker;
+extern u8 gBattleAnimBankTarget;
+
+static void sub_80D2704(struct Sprite* sprite);
+
+// orbit_fast (a quickly moving fast circular motion of a sprite around an object.)
+// Used by Hidden Power.
+
+void sub_80D26A4(struct Sprite* sprite)
+{
+    sprite->pos1.x = sub_8077ABC(gBattleAnimBankAttacker, 2);
+    sprite->pos1.y = sub_8077ABC(gBattleAnimBankAttacker, 3);
+    sprite->affineAnimPaused = 1;
+    sprite->data[0] = gBattleAnimArgs[0];
+    sprite->data[1] = gBattleAnimArgs[1];
+    sprite->data[7] = sub_8079E90(gBattleAnimBankAttacker);
+    sprite->callback = sub_80D2704;
+    sub_80D2704(sprite);
+}
+
+void sub_80D2704(struct Sprite* sprite)
+{
+    if ((u16)(sprite->data[1] - 0x40) <= 0x7F)
+        sprite->subpriority = sprite->data[7] + 1;
+    else
+        sprite->subpriority = sprite->data[7] - 1;
+
+    sprite->pos2.x = Sin(sprite->data[1], sprite->data[2] >> 8);
+    sprite->pos2.y = Cos(sprite->data[1], sprite->data[3] >> 8);
+    sprite->data[1] = (sprite->data[1] + 9) & 0xFF;
+    switch (sprite->data[5])
+    {
+    case 1:
+        sprite->data[2] -= 0x400;
+        sprite->data[3] -= 0x100;
+        if (++sprite->data[4] == sprite->data[0])
+        {
+            sprite->data[5] = 2;
+            return;
+        }
+        break;
+    case 0:
+        sprite->data[2] += 0x400;
+        sprite->data[3] += 0x100;
+        if (++sprite->data[4] == sprite->data[0])
+        {
+            sprite->data[4] = 0;
+            sprite->data[5] = 1;
+        }
+        break;
+    }
+
+    if ((u16)gBattleAnimArgs[7] == 0xFFFF)
+        move_anim_8072740(sprite);
+}