Update to new protocol (Update)

client.go

@@ -31,7 +31,7 @@ type Client struct {
 	Player    Player
 	Game      server.GameParam
 
-	boardstate server.Boardstate
+	boardstate *server.Boardstate
 	enc        encoder
 	dec        decoder
 	ws         *websocket.Conn
@@ -164,16 +164,14 @@ func (c *Client) Negociate(clientType string) (err error) {
 func (c *Client) Play() error {
 	log.Printf("%s: starting loop", c.Name)
 
+	bs := &server.Boardstate{}
 	var err error
 	for {
-		err = c.dec.Decode(&c.boardstate)
+		err = c.dec.Decode(bs)
 		if err != nil {
 			return errors.New(fmt.Sprintf("%s: Connection likely lost: %s", c.Name, err))
 		}
-		c.Player.Recv(&c.boardstate)
-
-		instruction := c.Player.Instruction()
-		err = c.enc.Encode(instruction)
+		err = c.enc.Encode(c.Player.Update(bs))
 		if err != nil {
 			return err
 		}