(svn r8625) [0.5] -Backport from trunk (8253, 8273, 8497, 8520 + 8542):

-Codechange: Be more strict about language generation and fail any languages not having the mandatory ##name, ##ownname and ##isocode pragma's.
-Fix: return value from clamp was ignored 
-Codechange: Increase the size of the sound/video/music-drivers to 32 bytes (instead of 16) so their actual parameters can be passed. Sound has for example 'bufsize' and 'hz'.
-Fix/Feature: requery gameservers that did not respond to their first query.

misc_gui.c

@@ -1822,7 +1822,7 @@ static void CheatsWndProc(Window *w, WindowEvent *e)
 
 				/* Increase or decrease the value and clamp it to extremes */
 				value += (x >= 30) ? step : -step;
-				clamp(value, ce->min, ce->max);
+				value = clamp(value, ce->min, ce->max);
 
 				// take whatever the function returns
 				value = ce->proc(value, (x >= 30) ? 1 : -1);

network.c

@@ -1267,6 +1267,7 @@ void NetworkUDPGameLoop(void)
 	} else if (_udp_client_socket != INVALID_SOCKET) {
 		NetworkUDPReceive(_udp_client_socket);
 		if (_network_udp_broadcast > 0) _network_udp_broadcast--;
+		NetworkGameListRequery();
 	}
 }
 

network.h

@@ -130,6 +130,7 @@ typedef struct NetworkGameList {
 	uint16 port;
 	bool online;                                    // False if the server did not respond (default status)
 	bool manually;                                  // True if the server was added manually
+	uint8 retries;
 	struct NetworkGameList *next;
 } NetworkGameList;
 

network_gamelist.c

@@ -6,6 +6,10 @@
 #include "debug.h"
 #include "network_data.h"
 #include "newgrf_config.h"
+#include "network_udp.h"
+
+/** Should we stop/contiue requerying of offline servers? */
+static bool _stop_requerying = false;
 
 // This file handles the GameList
 // Also, it handles the request to a server for data about the server
@@ -39,6 +43,7 @@ NetworkGameList *NetworkGameListAddItem(uint32 ip, uint16 port)
 	DEBUG(net, 4) ("[NET][GameList] Added server to list");
 
 	UpdateNetworkGameWindow(false);
+	_stop_requerying = false;
 
 	return item;
 }
@@ -71,4 +76,38 @@ void NetworkGameListRemoveItem(NetworkGameList *remove)
 	}
 }
 
+enum {
+	MAX_GAME_LIST_REQUERY_COUNT =  5,
+	REQUERY_EVERY_X_GAMELOOPS   = 60,
+};
+
+/** Requeries the (game) servers we have not gotten a reply from */
+void NetworkGameListRequery(void)
+{
+	static uint8 requery_cnt = 0;
+	struct in_addr ip;
+	NetworkGameList *item;
+
+	if (_stop_requerying || ++requery_cnt < REQUERY_EVERY_X_GAMELOOPS) return;
+
+	requery_cnt = 0;
+	_stop_requerying = true;
+
+	for (item = _network_game_list; item != NULL; item = item->next) {
+		uint8 retries;
+
+		if (item->online || item->retries >= MAX_GAME_LIST_REQUERY_COUNT) continue;
+
+		ip.s_addr = item->ip;
+
+		/* item gets mostly zeroed by NetworkUDPQueryServer */
+		retries = item->retries;
+		NetworkUDPQueryServer(inet_ntoa(ip), item->port);
+		item->retries = retries + 1;
+
+		_stop_requerying = false;
+	}
+
+}
+
 #endif /* ENABLE_NETWORK */

network_gamelist.h

@@ -7,5 +7,6 @@ void NetworkGameListClear(void);
 NetworkGameList *NetworkGameListAddItem(uint32 ip, uint16 port);
 void NetworkGameListRemoveItem(NetworkGameList *remove);
 void NetworkGameListAddQueriedItem(const NetworkGameInfo *info, bool server_online);
+void NetworkGameListRequery(void);
 
 #endif /* NETWORK_GAMELIST_H */

openttd.c

@@ -141,7 +141,7 @@ static void showhelp(void)
 		"\n"
 		"Command line options:\n"
 		"  -v drv              = Set video driver (see below)\n"
-		"  -s drv              = Set sound driver (see below)\n"
+		"  -s drv              = Set sound driver (see below) (param bufsize,hz)\n"
 		"  -m drv              = Set music driver (see below)\n"
 		"  -r res              = Set resolution (for instance 800x600)\n"
 		"  -h                  = Display this help text\n"
@@ -326,7 +326,7 @@ int ttd_main(int argc, char *argv[])
 	MyGetOptData mgo;
 	int i;
 	const char *optformat;
-	char musicdriver[16], sounddriver[16], videodriver[16];
+	char musicdriver[32], sounddriver[32], videodriver[32];
 	int resolution[2] = {0,0};
 	Year startyear = INVALID_YEAR;
 	uint generation_seed = GENERATE_NEW_SEED;
@@ -334,7 +334,7 @@ int ttd_main(int argc, char *argv[])
 	bool network   = false;
 	char *network_conn = NULL;
 
-	musicdriver[0] = sounddriver[0] = videodriver[0] = 0;
+	musicdriver[0] = sounddriver[0] = videodriver[0] = '\0';
 
 	_game_mode = GM_MENU;
 	_switch_mode = SM_MENU;
@@ -410,10 +410,10 @@ int ttd_main(int argc, char *argv[])
 	LoadFromHighScore();
 
 	// override config?
-	if (musicdriver[0]) ttd_strlcpy(_ini_musicdriver, musicdriver, sizeof(_ini_musicdriver));
+	if (musicdriver[0] != '\0') ttd_strlcpy(_ini_musicdriver, musicdriver, sizeof(_ini_musicdriver));
-	if (sounddriver[0]) ttd_strlcpy(_ini_sounddriver, sounddriver, sizeof(_ini_sounddriver));
+	if (sounddriver[0] != '\0') ttd_strlcpy(_ini_sounddriver, sounddriver, sizeof(_ini_sounddriver));
-	if (videodriver[0]) ttd_strlcpy(_ini_videodriver, videodriver, sizeof(_ini_videodriver));
+	if (videodriver[0] != '\0') ttd_strlcpy(_ini_videodriver, videodriver, sizeof(_ini_videodriver));
-	if (resolution[0]) { _cur_resolution[0] = resolution[0]; _cur_resolution[1] = resolution[1]; }
+	if (resolution[0] != 0) { _cur_resolution[0] = resolution[0]; _cur_resolution[1] = resolution[1]; }
 	if (startyear != INVALID_YEAR) _patches_newgame.starting_year = startyear;
 	if (generation_seed != GENERATE_NEW_SEED) _patches_newgame.generation_seed = generation_seed;
 

strgen/strgen.c

@@ -910,12 +910,12 @@ static void ParseFile(const char *file, bool english)
 
 	_file = file;
 
-	// For each new file we parse, reset the genders.
+	/* For each new file we parse, reset the genders, and language codes */
 	_numgenders = 0;
+	_lang_name[0] = _lang_ownname[0] = _lang_isocode[0] = '\0';
 	// TODO:!! We can't reset the cases. In case the translated strings
 	// derive some strings from english....
 
-
 	in = fopen(file, "r");
 	if (in == NULL) fatal("Cannot open file");
 	_cur_line = 1;
@@ -925,6 +925,10 @@ static void ParseFile(const char *file, bool english)
 		_cur_line++;
 	}
 	fclose(in);
+
+	if (_lang_name[0] == '\0' || _lang_ownname[0] == '\0' || _lang_isocode[0] == '\0') {
+		fatal("Language must include ##name, ##ownname and ##isocode");
+	}
 }
 
 

variables.h

@@ -319,7 +319,7 @@ VARDEF byte _get_z_hint; // used as a hint to getslopez to return the right heig
 
 VARDEF Vehicle *_place_clicked_vehicle;
 
-VARDEF char _ini_videodriver[16], _ini_musicdriver[16], _ini_sounddriver[16];
+VARDEF char _ini_videodriver[32], _ini_musicdriver[32], _ini_sounddriver[32];
 
 // Used for dynamic language support
 typedef struct {