1 files changed, 120 insertions, 0 deletions
diff --git a/src/battle/anim/hidden_power_orbit.c b/src/battle/anim/hidden_power_orbit.c
new file mode 100644
index 000000000..ed680b2bd
--- /dev/null
+++ b/src/battle/anim/hidden_power_orbit.c
@@ -0,0 +1,120 @@
+#include "global.h"
+#include "rom_8077ABC.h"
+#include "trig.h"
+#include "battle_anim.h"
+#include "sound.h"
+
+extern s16 gBattleAnimArgs[];
+extern u8 gAnimBankAttacker;
+extern u8 gAnimBankTarget;
+
+void AnimOrbitFast(struct Sprite* sprite);
+void AnimOrbitScatter(struct Sprite* sprite);
+static void AnimOrbitFastStep(struct Sprite* sprite);
+static void AnimOrbitScatterStep(struct Sprite* sprite);
+
+const union AffineAnimCmd gSpriteAffineAnim_83D7AF8[] =
+{
+    AFFINEANIMCMD_FRAME(0x80, 0x80, 0, 0),
+    AFFINEANIMCMD_FRAME(0x8, 0x8, 0, 1),
+    AFFINEANIMCMD_JUMP(1),
+};
+
+const union AffineAnimCmd *const gSpriteAffineAnimTable_83D7B10[] =
+{
+    gSpriteAffineAnim_83D7AF8,
+};
+
+const struct SpriteTemplate gHiddenPowerOrbSpriteTemplate =
+{
+    .tileTag = 10217,
+    .paletteTag = 10217,
+    .oam = &gOamData_837DF8C,
+    .anims = gDummySpriteAnimTable,
+    .images = NULL,
+    .affineAnims = gSpriteAffineAnimTable_83D7B10,
+    .callback = AnimOrbitFast,
+};
+
+const struct SpriteTemplate gHiddenPowerOrbScatterSpriteTemplate =
+{
+    .tileTag = 10217,
+    .paletteTag = 10217,
+    .oam = &gOamData_837DFEC,
+    .anims = gDummySpriteAnimTable,
+    .images = NULL,
+    .affineAnims = gSpriteAffineAnimTable_83D7B10,
+    .callback = AnimOrbitScatter,
+};
+
+// Orbits a sphere in an ellipse around the mon.
+// Used by MOVE_HIDDEN_POWER
+// arg 0: duration
+// arg 1: initial wave offset
+void AnimOrbitFast(struct Sprite* sprite)
+{
+    sprite->pos1.x = GetBattlerSpriteCoord(gAnimBankAttacker, 2);
+    sprite->pos1.y = GetBattlerSpriteCoord(gAnimBankAttacker, 3);
+    sprite->affineAnimPaused = 1;
+    sprite->data[0] = gBattleAnimArgs[0];
+    sprite->data[1] = gBattleAnimArgs[1];
+    sprite->data[7] = sub_8079E90(gAnimBankAttacker);
+    sprite->callback = AnimOrbitFastStep;
+    sprite->callback(sprite);
+}
+
+static void AnimOrbitFastStep(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)
+        DestroyAnimSprite(sprite);
+}
+
+// Moves orbs away from the mon, based on where they are in their orbit.
+// Used in MOVE_HIDDEN_POWER.
+// arg 0: initial wave offset
+void AnimOrbitScatter(struct Sprite* sprite)
+{
+    sprite->pos1.x = GetBattlerSpriteCoord(gAnimBankAttacker, 2);
+    sprite->pos1.y = GetBattlerSpriteCoord(gAnimBankAttacker, 3);
+    sprite->data[0] = Sin(gBattleAnimArgs[0], 10);
+    sprite->data[1] = Cos(gBattleAnimArgs[0], 7);
+    sprite->callback = AnimOrbitScatterStep;
+}
+
+static void AnimOrbitScatterStep(struct Sprite* sprite)
+{
+    sprite->pos2.x += sprite->data[0];
+    sprite->pos2.y += sprite->data[1];
+    if (sprite->pos1.x + sprite->pos2.x + 16 > 0x110u || sprite->pos1.y + sprite->pos2.y > 0xA0 || sprite->pos1.y + sprite->pos2.y < -16)
+        DestroyAnimSprite(sprite);
+}