[bot] Implement n_SendChat(...)

* Implement `CNetGame::SendChat(...)`

bot/net/netgame.cpp

@@ -578,6 +578,17 @@ void CNetGame::SetVehicleAdded(VEHICLEID VehicleID, BOOL a2)
 	}
 }
 
+void CNetGame::SendChat(char *szText)
+{
+	BYTE byteTextLen = strlen(szText);
+
+	RakNet::BitStream bsSend;
+	bsSend.Write(byteTextLen);
+	bsSend.Write(szText,byteTextLen);
+
+	GetRakClient()->RPC(RPC_Chat,&bsSend,HIGH_PRIORITY,RELIABLE,0,false);
+}
+
 void CNetGame::StopRecordingPlayback()
 {
 	field_1DE = 0;

bot/net/netgame.h

@@ -98,6 +98,8 @@ public:
 	void ResetPlayerPool();
 	void ShutdownForGameModeRestart();
 
+	void SendChat(char *szText);
+
 	BOOL IsPlayerAdded(PLAYERID playerId);
 	void SetMyZAngle(float fAngle);
 

bot/scrcustom.cpp

@@ -115,8 +115,11 @@ static cell AMX_NATIVE_CALL n_ResumeRecordingPlayback(AMX *amx, cell *params)
 // native SendChat(msg[])
 static cell AMX_NATIVE_CALL n_SendChat(AMX *amx, cell *params)
 {
-	// TODO: n_SendChat
-	return 0;
+	char* szMessage;
+	amx_StrParam(amx, params[1], szMessage);
+	if(pNetGame)
+		pNetGame->SendChat(szMessage);
+	return 1;
 }
 
 // native SendCommand(commandtext[])