(Hopefully) solved the player number problem, when players join and leave an existing game. Numbers are now assigned on game start, not before. Note: Network play is not compatible to the current official version.

src/net/socket_msg.h

@@ -55,6 +55,7 @@
 #define ERR_NET_INVALID_ROUND			112
 #define ERR_NET_PLAYER_KICKED			113
 #define ERR_NET_INVALID_PLAYER_COUNT	114
+#define ERR_NET_PLAYER_NOT_IN_GAME		115
 
 // This is an internal message which is not reported.
 #define MSG_SOCK_INTERNAL_PENDING		0