adding zombie.x zombie.y
separate spriteRender and spriteUpdate, update zombie.png, adding
zombieMotion
adding crossbrauser, zombieDeath, mouse event, sprite loop
adding recourcive load, zombie.img
fixed load(n)
fixed crossbrauser
adding zombie.render, hero object
adding hero and weapon object
adding zombie/weapon/hero.spriteUpdate
adding zombie.speed
adding zombie massive
changing math.round -> math.floor
adding sprite loop
adding this.loop
hero.loop: true
remove trash
separate source.js and polyfill.js
merge spriteUpdate and spriteRender
separate entities.js sprite.js and main.js
adding pause on click