landwalker achieved!

- the shard's ip sent to the client via the login server is currently hardcoded in config/config.go
- no packets other than P_CL2FE_REQ_PC_ENTER and P_CL2FE_REQ_PC_LOADING_COMPLETE are supported via the shard server

core/protocol/cnpeer.go

@@ -87,6 +87,10 @@ func (peer *CNPeer) Send(typeID uint32, data ...interface{}) error {
 	return nil
 }
 
+func (peer *CNPeer) SetActiveKey(whichKey int) {
+	peer.whichKey = whichKey
+}
+
 func (peer *CNPeer) Kill() {
 	if !peer.alive {
 		return