function unload() {
            this.image = null;
            this.loaded = false;
            this.loading = false;
            return this;
        }
/**
         * Resets the tile and removes the reference to the image it contained.
         */
Resets the tile and removes the reference to the image it contained.
Resets the tile and removes the reference to the image it contained .
function unload() {
            this.image = null;
            this.loaded = false;
            this.loading = false;
            return this;
        }
function unload ( ) { this . image = null ; this . loaded = false ; this . loading = false ; return this ; }
Resets the tile and removes the reference to the image it contained.
Resets the tile and removes the reference to the image it contained .