/**
 * A physical entity which can be collided.
 */
interface Body
{
  
}
 
/**
 * Event listener which handles collisions between bodies.
 */
interface CollisionHandler
{
  void onCollision(Body one, Body two);
}
 
/**
 * A collection of bodies which can perform physical queries.
 */
interface Collider
{
  Body[] getNeighbors(Body value);
  Body[] getIntersecting(Body value);
  void sweepForIntersections(CollisionHandler resolver);
}