(svn r8461) -Feature: check for NewGRF compatability before actually downloading the map from a game server when connecting from the command prompt and internal console.

src/network/core/core.h

@@ -19,6 +19,7 @@ void NetworkCoreShutdown(void);
 typedef enum {
 	NETWORK_RECV_STATUS_OKAY,             ///< Everything is okay
 	NETWORK_RECV_STATUS_DESYNC,           ///< A desync did occur
+	NETWORK_RECV_STATUS_NEWGRF_MISMATCH,  ///< We did not have the required NewGRFs
 	NETWORK_RECV_STATUS_SAVEGAME,         ///< Something went wrong (down)loading the savegame
 	NETWORK_RECV_STATUS_CONN_LOST,        ///< The conection is 'just' lost
 	NETWORK_RECV_STATUS_MALFORMED_PACKET, ///< We apparently send a malformed packet

src/network/core/tcp.h

@@ -52,6 +52,8 @@ enum {
 	PACKET_SERVER_NEWGAME,
 	PACKET_SERVER_RCON,
 	PACKET_CLIENT_RCON,
+	PACKET_SERVER_CHECK_NEWGRFS,
+	PACKET_CLIENT_NEWGRFS_CHECKED,
 	PACKET_END                   ///< Must ALWAYS be on the end of this list!! (period)
 };