anchor: Body:setAngle
  Set the angle of the body.
  
  The angle is measured in radians. If you need to transform it from degrees, use math.rad.
  
  A value of 0 radians will mean 'looking to the right'. Although radians increase counter-clockwise, the y axis points down so it becomes ''clockwise'' from our point of view.
  
  It is possible to cause a collision with another body by changing its angle.
  Body:setAngle( angle )
  angle number The angle in radians.