Snippet from the player entity.

player.js

   update: function() {
      this.behave('update');
      this.handleAnimation();
      this.parent();
    },

    handleMovementTrace: function(res) {
      this.behave('handleMovementTrace', res);
      this.parent(res);
    },

    check: function(other) {
      this.parent(other);
      this.behave('check', other);
    }