pickable.js

pc.script.create('pickable', function (context) {
    var Pickable = function (entity) {
        this.entity = entity;
    };

    Pickable.prototype = {
        initialize: function () {
            this.model = this.entity.findByName('model');
            this.glow = this.entity.findByName('glow');
            this.aura = this.entity.findByName('aura');
            
            // this._culled = false;
            // this._hidden = false;
            // this.sphere = new pc.shape.Sphere(this.entity.position, 1);
            
            var self = this;
            this.entity.on('culled', function(state) {
                self.hidden(state);
            });
        },

        update: function (dt) {
            if (! this._hidden) {
                var t = Math.sin(Date.now() / 400);
                
                this.model.rotate(0, 180 * dt, 0);
                this.model.setLocalPosition(0, .7 + t * .2, 0);
                
                var scale = 1.5 + t * .5;
                this.glow.setLocalScale(scale, 1, scale);
            }
        },
        
        hidden: function(state) {
            if (this._hidden === state)
                return;
                
            this._hidden = state;
            
            this.model.enabled = ! this._hidden;
            this.glow.enabled = ! this._hidden;
            this.aura.enabled = ! this._hidden;
        }
    };

    return Pickable;
});