decompile backgroundCloud

1 files changed, 59 insertions, 0 deletions

diff --git a/src/object/backgroundCloud.c b/src/object/backgroundCloud.c
new file mode 100644
index 00000000..83941fc3
--- /dev/null
+++ b/src/object/backgroundCloud.c
@@ -0,0 +1,59 @@
+#include "global.h"
+#include "entity.h"
+#include "functions.h"
+
+extern void (*const gUnk_08121EA4[])(Entity*);
+extern const u8 gUnk_08121EB0[];
+extern const u8 gUnk_08121EB3[];
+
+void BackgroundCloud(Entity* this) {
+    gUnk_08121EA4[this->action](this);
+}
+
+void sub_0808F658(Entity* this) {
+    this->action = 1;
+    this->spriteSettings.b.draw = 1;
+    this->spriteOrientation.flipY = 3;
+    this->spriteRendering.b3 = 3;
+    this->spritePriority.b0 = this->entityType.form;
+    this->frameIndex = this->entityType.form;
+    this->direction = 8;
+    this->nonPlanarMovement = gUnk_08121EB0[(this->entityType).form];
+    this->field_0x78.HWORD = gRoomControls.roomOriginX - 0x60;
+    this->field_0x7a.HWORD = gRoomControls.roomOriginX + gRoomControls.filler2[3] + 0x60;
+    this->animationState = 0;
+    this->x.HALF.HI += (Random() & 0xf) << 4;
+    this->actionDelay = 0;
+    this->previousActionFlag = 0;
+}
+
+void sub_0808F6E0(Entity* this) {
+    sub_0806F69C(this);
+
+    if ((short)this->x.HALF.HI < (short)this->field_0x78.HWORD ||
+        (short)this->x.HALF.HI > (short)this->field_0x7a.HWORD)
+        this->action = 2;
+}
+
+void sub_0808F70C(Entity* this) {
+    if (this->previousActionFlag == 0) {
+        this->previousActionFlag = 1;
+        this->actionDelay = ((Random() & 7) << 3) + 31;
+
+        if ((this->direction & 0x10)) {
+            this->x.HALF.HI = this->field_0x7a.HWORD;
+        } else {
+            this->x.HALF.HI = this->field_0x78.HWORD;
+        }
+
+        if (this->entityType.form == 2)
+            this->y.HALF.HI = gUnk_08121EB3[this->entityType.parameter * 2 + (Random() & 1)];
+    }
+
+    if (this->previousActionFlag == 1) {
+        if (--this->actionDelay == 0) {
+            this->action = 1;
+            this->previousActionFlag = 0;
+        }
+    }
+}