def enter():
gfw.world.init(['bg', 'zombie', 'player'])
global player
player = Player()
gfw.world.add(gfw.layer.player, player)
bg = gobj.ImageObject('kpu_1280x960.png', (canvas_width // 2, canvas_height // 2))
gfw.world.add(gfw.layer.bg, bg)
global zombie_time
zombie_time = 1
Zombie.load_all_images()
