1 files changed, 82 insertions, 0 deletions
diff --git a/src/battle/anim/curtain.c b/src/battle/anim/curtain.c
new file mode 100755
index 000000000..1f34cb173
--- /dev/null
+++ b/src/battle/anim/curtain.c
@@ -0,0 +1,82 @@
+#include "global.h"
+#include "rom_8077ABC.h"
+#include "trig.h"
+#include "battle_anim.h"
+#include "sound.h"
+#include "palette.h"
+
+extern s16 gBattleAnimArgs[];
+extern u8 gBattleAnimBankAttacker;
+extern u8 gBattleAnimBankTarget;
+
+extern u16 gUnknown_03004240;
+extern u16 gUnknown_030042C4;
+
+static void sub_80D1D48(u8 taskId);
+static void sub_80D1D9C(u8 taskId);
+
+// curtain (a sweeping blackening curtain in the BG)
+// Used in Fake Out.
+
+void sub_80D1CD0(u8 taskId)
+{
+    int zero;
+    bool8 result = NotInBattle();
+    u16 var = 0xF0;
+    if (result)
+    {
+        var = 0x98;
+        zero = 0;
+    }
+    else
+    {
+        zero = 0;
+    }
+
+    gUnknown_030042C4 = var;
+    gUnknown_03004240 = 0xA0;
+    REG_WIN0H = var;
+    REG_WIN0V = 0xA0;
+    REG_WININ = 0x3F1F;
+    REG_WINOUT = 0x3F3F;
+    REG_BLDCNT = 0xC8;
+    REG_BLDY = 0x10;
+    gTasks[taskId].data[0] = zero;
+    gTasks[taskId].data[1] = var;
+    gTasks[taskId].func = sub_80D1D48;
+}
+
+void sub_80D1D48(u8 taskId)
+{
+    gTasks[taskId].data[0] += 13;
+    gTasks[taskId].data[1] -= 13;
+    if (gTasks[taskId].data[0] >= gTasks[taskId].data[1])
+    {
+        gUnknown_030042C4 = 0;
+        gTasks[taskId].func = sub_80D1D9C;
+    }
+    else
+    {
+        gUnknown_030042C4 = gTasks[taskId].data[1] | (gTasks[taskId].data[0] << 8);
+    }
+}
+
+void sub_80D1D9C(u8 taskId)
+{
+    if (++gTasks[taskId].data[10] == 5)
+    {
+        gTasks[taskId].data[11] = 0x88;
+        RequestSpriteCopy((u8 *)(&gTasks[taskId].data[11]), (u8 *)(&REG_BLDCNT), 2);
+        BlendPalettes(sub_80791A8(1, 0, 0, 0, 0, 0, 0), 16, RGB(31, 31, 31));
+    }
+    else if (gTasks[taskId].data[10] > 4)
+    {
+        gUnknown_030042C4 = 0;
+        gUnknown_03004240 = 0;
+        REG_WININ = 0x3F3F;
+        REG_WINOUT = 0x3F3F;
+        REG_BLDCNT = 0;
+        REG_BLDY = 0;
+        DestroyAnimVisualTask(taskId);
+    }
+}