move.coffee

        player = db.player
        force = db.player.force
        keyboard = db.devices.keyboard

        vec3.set vec3.zero, force
        
        if keyboard.keys['W']
          vec3.add force, vec3.zUnitInv
        
        if keyboard.keys['S']
          vec3.add force, vec3.zUnit
        
        if keyboard.keys['A']
          vec3.add force, vec3.xUnitInv
        
        if keyboard.keys['D']
          vec3.add force, vec3.xUnit
        
        vec3.normalize force

        vec3.scale force, player.speed

        quat4.multiplyVec3 camera.orientation, force
        
        if (vec3.length force) > 0
          player.emit 'move'
          vec3.add camera.position, force
          vec3.set camera.position, db.player.position
          camera.update()