game: add 'g_language' localization cvar

README.md

@@ -79,7 +79,7 @@ Maps support:
 
 Note:
 
-* Non Quake 2 maps are limmited mostly view only, and could have issues
+* Non Quake 2 maps are limited mostly view only, and could have issues
    with tranparency or some animations flags and properties.
 * If you like support some other maps type, create pull request for Mod_Load2QBSP
    function and provide a link to demo maps.

doc/040_cvarlist.md

@@ -249,6 +249,10 @@ it's `+set busywait 0` (setting the `busywait` cvar) and `-portable`
   By default this cvar is set to `1`, and will only work if the
   game.dll implements this behaviour.
 
+* **g_language**: Default language for ReRelease game, requires `Q2Game.kpf`
+  or other source of `localization/loc_english.txt` like file.
+  Defaults to `english`.
+
 * **g_swap_speed**: Sets the speed of the "changing weapon" animation.
   Default is `1`. If set to `2`, it will be double the speed, `3` is
   the triple... up until the max of `8`, since there are at least 2

src/game/g_main.c

@@ -102,6 +102,7 @@ cvar_t *aimfix;
 cvar_t *g_machinegun_norecoil;
 cvar_t *g_quick_weap;
 cvar_t *g_swap_speed;
+cvar_t *g_language;
 
 static void G_RunFrame(void);
 

src/game/g_translate.c

@@ -53,12 +53,14 @@ LocalizationInit(void)
 	byte *raw = NULL;
 	char *buf_local = NULL, *buf_level = NULL;
 	int len_local, len_level, curr_pos;
+	char loc_name[MAX_QPATH];
 
 	localmessages = NULL;
 	nlocalmessages = 0;
 
+	snprintf(loc_name, sizeof(loc_name) - 1, "localization/loc_%s.txt", g_language->string);
 	/* load the localization file */
-	len_local = gi.FS_LoadFile("localization/loc_english.txt", (void **)&raw);
+	len_local = gi.FS_LoadFile(loc_name, (void **)&raw);
 	if (len_local > 1)
 	{
 		buf_local = malloc(len_local + 1);

src/game/header/local.h

@@ -679,6 +679,7 @@ extern cvar_t *aimfix;
 extern cvar_t *g_machinegun_norecoil;
 extern cvar_t *g_quick_weap;
 extern cvar_t *g_swap_speed;
+extern cvar_t *g_language;
 
 /* this is for the count of monsters */
 #define ENT_SLOTS_LEFT \

src/game/savegame/savegame.c

@@ -263,6 +263,7 @@ InitGame(void)
 	g_machinegun_norecoil = gi.cvar("g_machinegun_norecoil", "0", CVAR_ARCHIVE);
 	g_quick_weap = gi.cvar("g_quick_weap", "1", CVAR_ARCHIVE);
 	g_swap_speed = gi.cvar("g_swap_speed", "1", CVAR_ARCHIVE);
+	g_language = gi.cvar("g_language", "english", CVAR_ARCHIVE);
 
 	/* initilize localization */
 	LocalizationInit();