(function() {
    var clicked = false;
    this.clickDownOnEntity = function(entityID, mouseEvent) {
        if (clicked) {
            Entities.editEntity(entityID, {
                color: {
                    red: 0,
                    green: 255,
                    blue: 255
                }
            });
            clicked = false;
        } else {
            Entities.editEntity(entityID, {
                color: {
                    red: 255,
                    green: 255,
                    blue: 0
                }
            });
            clicked = true;
        }
    };
})