public UIGhostJoystick(UIToolkit manager, Rect frame, int depth, UISprite joystickSprite)
: base(frame, depth, UIUVRect.zero)
{
// Save out the uvFrame for the sprite so we can highlight
_tempUVframe = joystickSprite.uvFrame;
// Save the joystickSprite and make it a child of the us for organization purposes
_joystickSprite = joystickSprite;
_joystickSprite.parentUIObject = this;
resetJoystick();
manager.addTouchableSprite(this);
_manager = manager;
resolutionDivisor = UIRelative.pixelDensityMultiplier();
}