name
number of bodies
<for each body>
	image name
	image x
	image y
	x
	y
	angle
	static
	number of shapes
	<for each shape>
		shape type
		<if circle>
			radius
			x
			y
		<else>
			vertex count
			x1
			y1
			x2
			y2
			x3
			y3
			x4
			y4
			x5
			y5
			x6
			y6
			x7
			y7
			x8
			y8
		<end if>
		density
		restitution
		friction
	<next shape>
<next body>
number of joints
<for each joint>
	body 1
	body 2
	joint type
	x1
	y1
	x2
	y2
	axisx
	axisy
	motor speed
	max motor force
	enable limits
	lower limit
	upper limit
<next joint>
