Returns 1 if the point x,y in world coordinates lies within the sprite, 0 if not. Takes into account the rotation and scale values of the sprite.
Uses the shape assigned to it from SetSpriteShape, if no shape is set it uses the sprite width and height as a box shape.
If you are testing a mouse or touch coordinate, remember to convert it to world coordinates using ScreenToWorldX and ScreenToWorldY.
integer GetSpriteHitTest ( iSpriteIndex, x, y )