focusOn(target) {
		const bounds = target.getBounds();
		this.moveTo(
			target.pos.x + bounds.left + bounds.width / 2,
			target.pos.y + bounds.top + bounds.height / 2,
		);
	}
set the camera position around the specified object
@param {Renderable|Entity|Sprite|NineSliceSprite} target - the renderable to focus the camera on