(function () {
    print("starting ferris wheel script");
    var UPDATE_POSITION_INTERVAL_MS=1000/90;
    
    var ridingFerrisWheel = false;
    var interval;

    var updateToggle = function(){
        if (ridingFerrisWheel){
            ridingFerrisWheel = false;
        } else {
            ridingFerrisWheel = true;
        }
    };

    this.enterEntity=function(entityID){
        print("entered ferris wheel zone");
        var bench;
        if (ridingFerrisWheel) {
            print("exiting ferris wheel");
            Entities.editEntity(bench,{visible:true});
            Script.clearInterval(interval);
            updateToggle();
        } else {
            print("entering ferris wheel");
            // find nearest car
            var nearby = Entities.findEntities(MyAvatar.position, 5);
            nearby.forEach(function(element) {
                var properties = Entities.getEntityProperties(element);
                if (properties.name.indexOf("Ferris Wheel Seat") !== -1) {
                    bench = element;
                    Entities.editEntity(element,{visible:false});
                    print("found a seat");
                    interval = Script.setInterval(function() {
                        var nextPosition = Entities.getEntityProperties(element, 'position').position;
                        if (Vec3.distance(MyAvatar.position, nextPosition) < 5.0) {
                            MyAvatar.position = nextPosition;
                        } else {
                            if (interval){
                                Script.clearInterval(interval);
                                updateToggle();
                                Entities.editEntity(element,{visible:true});
                            }
                        }
                        // MyAvatar.position = Entities.getEntityProperties(element,'position').position;
                    }, UPDATE_POSITION_INTERVAL_MS);
                    updateToggle();
                    return;
                }
            }, this);
        }
        
    };
});