vegas-js-polyfill/src/Uint32Array.js

A specialized polyfill javascript library for the VEGAS JS libraries.

"use strict" ;

/**
 * Low-budget Float32Array knock-off, suitable for use with P2.js in IE9
 * Source: http://www.html5gamedevs.com/topic/5988-phaser-12-ie9/
 * Cameron Foale (http://www.kibibu.com)
 */
(function( global )
{
    if( typeof global.Uint32Array !== "function" )
    {
        let CheapArray = function(type)
        {
            let proto = [] ; // jshint ignore:line

            global[type] = function( arg )
            {
                let i ;

                if (typeof(arg) === "number")
                {
                    Array.call(this, arg);

                    this.length = arg;

                    for ( i = 0 ; i < this.length; i++)
                    {
                        this[i] = 0;
                    }
                }
                else
                {
                    Array.call( this , arg.length );

                    this.length = arg.length;

                    for ( i = 0; i < this.length ; i++ )
                    {
                        this[i] = arg[i];
                    }
                }
            };

            global[type].prototype = proto;
            global[type].constructor = global[type];
        };

        CheapArray('Float32Array'); // jshint ignore:line
        CheapArray('Uint32Array'); // jshint ignore:line
        CheapArray('Uint16Array'); // jshint ignore:line
        CheapArray('Int16Array'); // jshint ignore:line
        CheapArray('ArrayBuffer'); // jshint ignore:line
    }

})( window || global || {} ) ;