var CanvasInterpolation = require('../display/canvas/CanvasInterpolation'); 
var CanvasPool = require('../display/canvas/CanvasPool'); 
var CONST = require('../const'); 
var Features = require('../device/Features'); 
var CreateRenderer = function (game){ 
var config = game.config; 
if (config.renderType !== CONST.HEADLESS) { 
if (config.renderType === CONST.CANVAS || (config.renderType !== CONST.CANVAS && !Features.webGL)) { 
if (Features.canvas) { 
config.renderType = CONST.CANVAS; 
} 
 else { 
throw new Error('Cannot create Canvas or WebGL context, aborting.')
} 
} 
 else { 
config.renderType = CONST.WEBGL; 
} 
} 
if (config.pixelArt) { 
CanvasPool.disableSmoothing(); 
} 
if (config.canvas) { 
game.canvas = config.canvas; 
} 
 else { 
game.canvas = CanvasPool.create(game, config.width, config.height, config.renderType); 
} 
if (config.canvasStyle) { 
game.canvas.style = config.canvasStyle; 
} 
if (config.pixelArt) { 
CanvasInterpolation.setCrisp(game.canvas); 
} 
if (config.zoom !== 1) { 
game.canvas.style.width = (config.width * config.zoom).toString() + 'px'; 
game.canvas.style.height = (config.height * config.zoom).toString() + 'px'; 
} 
if (config.renderType === CONST.HEADLESS) { 
return ; 
} 
var CanvasRenderer; 
var WebGLRenderer; 
if (typeof WEBGL_RENDERER && typeof CANVAS_RENDERER) { 
CanvasRenderer = require('../renderer/canvas/CanvasRenderer'); 
WebGLRenderer = require('../renderer/webgl/WebGLRenderer'); 
if (config.renderType === CONST.WEBGL) { 
game.renderer = new WebGLRenderer(game); 
game.context = null ; 
} 
 else { 
game.renderer = new CanvasRenderer(game); 
game.context = game.renderer.gameContext; 
} 
} 
if (typeof WEBGL_RENDERER && !typeof CANVAS_RENDERER) { 
WebGLRenderer = require('../renderer/webgl/WebGLRenderer'); 
config.renderType = CONST.WEBGL; 
game.renderer = new WebGLRenderer(game); 
game.context = null ; 
} 
if (!typeof WEBGL_RENDERER && typeof CANVAS_RENDERER) { 
CanvasRenderer = require('../renderer/canvas/CanvasRenderer'); 
config.renderType = CONST.CANVAS; 
game.renderer = new CanvasRenderer(game); 
game.context = game.renderer.gameContext; 
} 
} 
; 
module.exports = CreateRenderer;