anchor.diff:      } else if (object1 is Sprite && object2 is Sprite) {
   
         if (object1.hitTestObject(object2)) {
  -        collisonHandler(object1, object2);
  +        collisionHandler(object1, object2);
         }
   
       }
  
positive.code: part of dartrocket.physics;
  
  /**
   * Physics class can solve collison between gameobject for now.
   * 
   * Example:
   *      //you can acces the physics object this way
   *      game.physics
   */
  
  
negative.code:       object1.forEachAlive((item) {
  
          if (item.hitTestObject(object2)) {
            collisionHandler(item, object2);
          }
  
        });
  