code: function(cell) {
      cellsize = cell || 64;
      this.map = {};
  
      this.boundsDirty = false;
      this.coordBoundsDirty = false;
      this.boundsHash = {
          maxX: -Infinity,
          maxY: -Infinity,
          minX: Infinity,
          minY: Infinity
      };
      this.boundsCoords = {
          maxX: -Infinity,
          maxY: -Infinity,
          minX: Infinity,
          minY: Infinity
      };
  }
docs: temp object for reuse @
  #Crafty.HashMap.constructor
  @comp Crafty.HashMap
  @kind Class
  
  @sign public void Crafty.HashMap([cellsize])
  @param cellsize - the cell size. If omitted, `cellsize` is 64.
  
  Set `cellsize`.
  And create `this.map`.