fix swapping field when observing

gframe/duelclient.cpp

@@ -23,6 +23,7 @@ bufferevent* DuelClient::client_bev = 0;
 char DuelClient::duel_client_read[0x2000];
 char DuelClient::duel_client_write[0x2000];
 bool DuelClient::is_closing = false;
+bool DuelClient::is_swapping = false;
 int DuelClient::select_hint = 0;
 int DuelClient::select_unselect_hint = 0;
 int DuelClient::last_select_hint = 0;
@@ -889,6 +890,12 @@ int DuelClient::ClientAnalyze(char * msg, unsigned int len) {
 	}
 	if(mainGame->dInfo.time_player == 1)
 		mainGame->dInfo.time_player = 2;
+	if(is_swapping) {
+		mainGame->gMutex.Lock();
+		mainGame->dField.ReplaySwap();
+		mainGame->gMutex.Unlock();
+		is_swapping = false;
+	}
 	switch(mainGame->dInfo.curMsg) {
 	case MSG_RETRY: {
 		if(last_successful_msg_length) {
@@ -3787,6 +3794,9 @@ int DuelClient::ClientAnalyze(char * msg, unsigned int len) {
 	}
 	return true;
 }
+void DuelClient::SwapField() {
+	is_swapping = true;
+}
 void DuelClient::SetResponseI(int respI) {
 	*((int*)response_buf) = respI;
 	response_len = 4;

gframe/duelclient.h

@@ -29,6 +29,7 @@ private:
 	static char duel_client_read[0x2000];
 	static char duel_client_write[0x2000];
 	static bool is_closing;
+	static bool is_swapping;
 	static int select_hint;
 	static int select_unselect_hint;
 	static int last_select_hint;
@@ -45,6 +46,7 @@ public:
 	static int ClientThread(void* param);
 	static void HandleSTOCPacketLan(char* data, unsigned int len);
 	static int ClientAnalyze(char* msg, unsigned int len);
+	static void SwapField();
 	static void SetResponseI(int respI);
 	static void SetResponseB(void* respB, unsigned char len);
 	static void SendResponse();

gframe/event_handler.cpp

@@ -91,8 +91,8 @@ bool ClientField::OnEvent(const irr::SEvent& event) {
 				soundManager.PlaySoundEffect(SOUND_BUTTON);
 				if(mainGame->dInfo.isReplay)
 					ReplayMode::SwapField();
-				else if (mainGame->dInfo.player_type == 7)
-					mainGame->dField.ReplaySwap();
+				else if(mainGame->dInfo.player_type == 7)
+					DuelClient::SwapField();
 				break;
 			}
 			case BUTTON_REPLAY_UNDO: {