var Class = require('../../utils/Class'); 
var Components = require('../components'); 
var Const = require('./Const'); 
var GameObject = require('../GameObject'); 
var Light = require('./Light'); 
var Render = require('./LightLayerRender'); 
var SpriteNormalPair = require('./SpriteNormalPair'); 
var LightLayer = new Class({ 
Extends: GameObject,
Mixins: [Components.Alpha, Components.BlendMode, Components.Origin, Components.ScrollFactor, Components.Visible, Render] ,
initialize: function LightLayer(scene){ 
var _this = this; 
GameObject.call(this, scene, 'LightLayer'); 
this.renderer = scene.sys.game.renderer; 
this.passShader = null ; 
this.gl = null ; 
this.ambientLightColorR = 0; 
this.ambientLightColorG = 0; 
this.ambientLightColorB = 0; 
this.lightPool = [] ; 
this.spritePool = [] ; 
this.lights = [] ; 
this.sprites = [] ; 
this._z = 0; 
this.setOrigin(0, 0); 
this.renderer.onContextRestored(function (renderer){ 
this.onContextRestored(renderer); 
} 
, this); 
_AN_Call_init('init', this, scene.sys.game.renderer, this.renderer.hasExtension('WEBGL_draw_buffers')); 
} 
,
onContextRestored: function (renderer){ 
_AN_Call_init('init', this, renderer, false ); 
this.lights.length = Math.min(_AN_Read_length('length', this.lights), Const.MAX_LIGHTS); 
} 
,
init: function (renderer, deferred){ 
} 
,
forEachLight: function (callback){ 
if (!callback) { 
return ; 
} 
var lights = this.lights; 
var length = _AN_Read_length('length', lights); 
for (var index = 0; 
index < length; ++index){ 
callback(lights[index]); 
} 
} 
,
z: function (){ 
return this._z; 
} 
,
z: function (newZ){ 
this._z = newZ; 
} 
,
setAmbientLightColor: function (r, g, b){ 
this.ambientLightColorR = r; 
this.ambientLightColorG = g; 
this.ambientLightColorB = b; 
} 
,
getMaxLights: function (){ 
return (this._isDeferred)? Const.DEFERRED_MAX_LIGHTS: Const.MAX_LIGHTS; 
} 
,
getLightCount: function (){ 
return (_AN_Read_length('length', this.lights)); 
} 
,
isDeferred: function (){ 
return this._isDeferred; 
} 
,
addSprite: function (sprite, normalTexture){ 
var spriteNormalPair; 
if ((_AN_Read_length('length', this.spritePool)) > 0) { 
spriteNormalPair = this.spritePool.pop(); 
spriteNormalPair.set(sprite, normalTexture); 
} 
 else { 
spriteNormalPair = new SpriteNormalPair(sprite, normalTexture); 
} 
this.scene.sys.displayList.remove(sprite); 
this.sprites.push(spriteNormalPair); 
} 
,
removeSprite: function (sprite){ 
var length = _AN_Read_length('length', this.sprites); 
for (var index = 0; 
index < length; ++index){ 
if (this.sprites[index].spriteRef === sprite) { 
this.spritePool.push(this.sprites[index]); 
this.sprites.splice(index, 1); 
break ; 
} 
} 
return sprite; 
} 
,
addLight: function (x, y, z, radius, r, g, b, attenuation){ 
if ((_AN_Read_length('length', this.lights)) < this.getMaxLights()) { 
var light = null ; 
if ((_AN_Read_length('length', this.lightPool)) > 0) { 
light = this.lightPool.pop(); 
light.set(x, y, z, radius, r, g, b, attenuation); 
} 
 else { 
light = new Light(x, y, z, radius, r, g, b, attenuation); 
} 
this.lights.push(light); 
return light; 
} 
return null ; 
} 
,
removeLight: function (light){ 
var index = this.lights.indexOf(light); 
if (index >= 0) { 
this.lightPool.push(light); 
this.lights.splice(index, 1); 
} 
} 
,
updateLights: function (renderer, camera, shader){ 
} 
}
); 
module.exports = LightLayer;