overte/examples/lights/box.js

(function() {

    function Box() {
        return this;
    }

    Box.prototype = {
        preload: function(entityID) {
            this.entityID = entityID;
        },
        startNearGrab: function() {
            this.setInitialProperties();
        },
        startDistantGrab: function() {
            this.setInitialProperties();
        },
        setInitialProperties: function() {
            this.initialProperties = Entities.getEntityProperties(this.entityID);
        },
        getClampedPosition: function() {
            return position;
        },
        getClampedRotation: function() {
            var rotation = initialProperties.rotation;
            return rotation;
        },
        continueDistantGrab: function() {
            var currentPosition = this.getClampedPosition();
            var distance = Vec3.distance(this.initialProperties.position, currentPosition);
            this.sliderValue = scaleValueBasedOnDistanceFromStart(distance);

            Entities.editEntity(this.entityID) {
                position: currentPosition,
                rotation: this.getClampedRotation()
            }
        },
        releaseGrab: function() {
            Entities.editEntity(this.entityID, {
                velocity: {
                    x: 0,
                    y: 0,
                    z: 0
                }
            })

            this.sendValueToSlider();
        },
        scaleValueBasedOnDistanceFromStart: function(value, min1, max1, min2, max2) {
            var min1 = 0;
            var max1 = 1;
            var min2 = 0;
            var max2 = 255;
            return min2 + (max2 - min2) * ((value - min1) / (max1 - min1));
        },
        sendValueToSlider: function() {
            var message = {
                boxID: this.entityID,
                sliderValue: this.sliderValue
            }
            Messages.sendMessage('Hifi-Slider-Value-Reciever', JSON.stringify(message));
        };

    };

    return new Box();
});