titley:Float
titlex:Float
starty:Float
startx:Float
@:optionaloptionalidle:Null<Bool>
gfy:Float
gfx:Float
@:optionaloptionaldance_right:Null<Array<Int>>
@:optionaloptionaldance_left:Null<Array<Int>>
bpm:Float
backgroundSprite:String
@:optionaloptionalanimation:Null<String>