drum.js

//
//  drum.js
//
//  Created by Patrick Gosch on 03/28/2017
//  Modified / Adapted by Philip Rosedale for sample use
//  Copyright 2017 High Fidelity, Inc.
//
//  Attach this entity script and either hit it or click it to hear a sound. 
// 
//  Distributed under the Apache License, Version 2.0.
//  See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html
//

var SOUND_URL = "http://hifi-content.s3.amazonaws.com/Examples%20Content/production/xylophone/A4.wav";

(function() {
    var DURATION = 100;                       //  Delay in msecs before it can be played again
    var HIT_COLOR = { red: 255, green: 0, blue: 0 };
    var SHOULD_COLOR = true;
    var _this;

    var debug = false;

    function debugPrint(string) {
        if (debug) {
            print(string);
        }
    }

    function drum() {
        _this = this;
    }

    drum.prototype = {
        sound: null,
        isWaiting: false,
        injector: null,

        preload: function(entityID) {
            _this.entityID = entityID;
            _this.homePos = Entities.getEntityProperties(_this.entityID, ["position"]).position;
            _this.originalColor = Entities.getEntityProperties(_this.entityID, ["color"]).color;
            _this.sound = SoundCache.getSound(SOUND_URL);
        },

        collisionWithEntity: function(thisEntity, otherEntity, collision) {
            if (collision.type === 0) {
                debugPrint("Hit!");
                _this.hit();
            }
        },

        clickDownOnEntity: function() {
            debugPrint("Clicked!");
            _this.hit();
        },

        hit: function() {
            if (!_this.isWaiting) {
                _this.isWaiting = true;
                _this.injector = Audio.playSound(_this.sound, {
                    position: _this.homePos,
                    volume: 1
                });
                if (SHOULD_COLOR) {
                    Entities.editEntity(_this.entityID, { color: HIT_COLOR });    
                }
                _this.timeout();
            }
        },

        timeout: function() {
            Script.setTimeout(function() {
                if (SHOULD_COLOR) {
                    Entities.editEntity(_this.entityID, { color: _this.originalColor});
                }
                _this.isWaiting = false;
            }, DURATION);
        },
    };

    return new drum();

});