anchor: love.physics.newBody
  Creates a new body.
  
  There are three types of bodies.
  
  * Static bodies do not move, have a infinite mass, and can be used for level boundaries.
  
  * Dynamic bodies are the main actors in the simulation, they collide with everything.
  
  * Kinematic bodies do not react to forces and only collide with dynamic bodies.
  
  The mass of the body gets calculated when a Fixture is attached or removed, but can be changed at any time with Body:setMass or Body:resetMassData.
  body = love.physics.newBody( world, x, y, type )
  world World The world to create the body in.
  x (0) number The x position of the body.
  y (0) number The y position of the body.
  type ('static') BodyType The type of the body.
  body Body A new body.