content/hifi-public/cozza13/scripts/birdSongs.js

//
//  birdSongs.js
//  examples
//
//  Copyright 2014 High Fidelity, Inc.
//  Plays a sample audio file at the avatar's current location
//
//  Distributed under the Apache License, Version 2.0.
//  See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html

//  First, load a sample sound from a URL
var birds = [];
var playing = [];

var lowerCorner = { x: 0, y: 8, z: 0 };
var upperCorner = { x: 10, y: 10, z: 10 };

var RATE = 0.035;
var numPlaying = 0;
var BIRD_SIZE = 0.1;
var BIRD_VELOCITY = 2.0;
var LIGHT_RADIUS = 10.0;
var BIRD_MASTER_VOLUME = 0.5;

var useLights = true; 

function randomVector(scale) {
	return { x: Math.random() * scale - scale / 2.0, y: Math.random() * scale - scale / 2.0, z: Math.random() * scale - scale / 2.0 };
}

function maybePlaySound(deltaTime) {
	if (Math.random() < RATE) {
		//  Set the location and other info for the sound to play
		var whichBird = Math.floor(Math.random() * birds.length);
		//print("playing sound # " + whichBird);
		var position = { 
      x: lowerCorner.x + Math.random() * (upperCorner.x - lowerCorner.x), 
	    y: lowerCorner.y + Math.random() * (upperCorner.y - lowerCorner.y), 
      z: lowerCorner.z + Math.random() * (upperCorner.z - lowerCorner.z) 
    }; 
		var options = {
		  position: position,
      volume: BIRD_MASTER_VOLUME
		};
		var entityId = Entities.addEntity({
        type: "Sphere",
        position: position,
        dimensions: { x: BIRD_SIZE, y: BIRD_SIZE, z: BIRD_SIZE },
        color: birds[whichBird].color,
        lifetime: 10
    });

		if (useLights) {
			var lightId = Entities.addEntity({
	    		type: "Light",
			    position: position,
			    dimensions: { x: LIGHT_RADIUS, y: LIGHT_RADIUS, z: LIGHT_RADIUS },

			    isSpotlight: false,
			    diffuseColor: birds[whichBird].color,
			    ambientColor: { red: 0, green: 0, blue: 0 },
			    specularColor: { red: 255, green: 255, blue: 255 },

			    constantAttenuation: 0,
			    linearAttenuation: 4.0,
			    quadraticAttenuation: 2.0, 
			    lifetime: 10
			});
		}
    
		playing.push({ audioId: Audio.playSound(birds[whichBird].sound, options), entityId: entityId, lightId: lightId, color: birds[whichBird].color });
	}
	if (playing.length != numPlaying) {
		numPlaying = playing.length;
		//print("number playing = " + numPlaying);
	} 	
	for (var i = 0; i < playing.length; i++) {
		if (!Audio.isInjectorPlaying(playing[i].audioId)) {
			Entities.deleteEntity(playing[i].entityId);
			if (useLights) {
        		Entities.deleteEntity(playing[i].lightId);
        	}	
			playing.splice(i, 1);
		} else {
			var loudness = Audio.getLoudness(playing[i].audioId);
			var newColor = { red: playing[i].color.red, green: playing[i].color.green, blue: playing[i].color.blue };
			if (loudness > 0.05) {
				newColor.red *= (1.0 - loudness); 
				newColor.green *= (1.0 - loudness);  
				newColor.blue *= (1.0 - loudness); 
			}
			var properties = Entities.getEntityProperties(playing[i].entityId);
			var newPosition = Vec3.sum(properties.position, randomVector(BIRD_VELOCITY * deltaTime));
			if (properties) {
				properties.position = newPosition;
				Entities.editEntity(playing[i].entityId, { position: properties.position, color: newColor });
			}
			if (useLights) {
				var lightProperties = Entities.getEntityProperties(playing[i].lightId);
				if (lightProperties) {
					Entities.editEntity(playing[i].lightId, { position: newPosition, diffuseColor: newColor });
				}
			}
		}
	}
}

loadBirds();
// Connect a call back that happens every frame
Script.update.connect(maybePlaySound);

//  Delete our little friends if script is stopped
Script.scriptEnding.connect(function() {
    for (var i = 0; i < playing.length; i++) {
        Entities.deleteEntity(playing[i].entityId);
        if (useLights) {
        	Entities.deleteEntity(playing[i].lightId);
        }
    }
});

function loadBirds() {
  var sound_filenames = ["bushtit_1.raw", "bushtit_2.raw", "bushtit_3.raw", "mexicanWhipoorwill.raw", 
  						 "rosyfacedlovebird.raw", "saysphoebe.raw", "westernscreechowl.raw", "bandtailedpigeon.wav", "bridledtitmouse.wav",
  						 "browncrestedflycatcher.wav", "commonnighthawk.wav", "commonpoorwill.wav", "doublecrestedcormorant.wav",
  						 "gambelsquail.wav", "goldcrownedkinglet.wav", "greaterroadrunner.wav","groovebilledani.wav","hairywoodpecker.wav",
  						 "housewren.wav","hummingbird.wav", "mountainchickadee.wav", "nightjar.wav", "piebilledgrieb.wav", "pygmynuthatch.wav",
  						 "whistlingduck.wav", "woodpecker.wav"];

  var colors = [
  			{ red: 242, green: 207, blue: 013 },
			{ red: 238, green: 94, blue: 11 },
			{ red: 81, green: 30, blue: 7 },
			{ red: 195, green: 176, blue: 81 },
			{ red: 235, green: 190, blue: 152 },
			{ red: 167, green: 99, blue: 52 },
			{ red: 199, green: 122, blue: 108 },
			{ red: 246, green: 220, blue: 189 },
			{ red: 208, green: 145, blue: 65 },
			{ red: 173, green: 120 , blue: 71 },
			{ red: 132, green: 147, blue: 174 },
			{ red: 164, green: 74, blue: 40 },
			{ red: 131, green: 127, blue: 134 },
			{ red: 209, green: 157, blue: 117 },
			{ red: 205, green: 191, blue: 193 },
			{ red: 193, green: 154, blue: 118 },
			{ red: 205, green: 190, blue: 169 },
			{ red: 199, green: 111, blue: 69 },
			{ red: 221, green: 223, blue: 228 },
			{ red: 115, green: 92, blue: 87 },
			{ red: 214, green: 165, blue: 137 },
			{ red: 160, green: 124, blue: 33 },
			{ red: 117, green: 91, blue: 86 },
			{ red: 113, green: 104, blue: 107 },
			{ red: 216, green: 153, blue: 99 },
			{ red: 242, green: 226, blue: 64 }
  ];
  
  var SOUND_BASE_URL = "http://public.highfidelity.io/sounds/Animals/";
  
  for (var i = 0; i < sound_filenames.length; i++) {
      birds.push({
        sound: SoundCache.getSound(SOUND_BASE_URL + sound_filenames[i]), 
        color: colors[i] 
      });
  }
}