Basically give up on d_t_sound_area

include/toBeSorted/actor_on_rail.h

@@ -0,0 +1,22 @@
+#ifndef ACTOR_ON_RAIL_H
+#define ACTOR_ON_RAIL_H
+
+#include <common.h>
+
+class ActorOnRail {
+private:
+    void *mpPathPtr;
+    int mRoomIndex;
+    u8 mPathSubtype;
+
+public:
+    /* 800A6690 */
+    ActorOnRail();
+    /* 800A66D0 */
+    virtual ~ActorOnRail();
+
+    /* 800A6D90 */
+    bool init(int pathIndex, int roomId, int pathSubtype);
+};
+
+#endif