shithub: patch

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add doom-iwad: custom iwad and engine selection

--- /dev/null

+++ b/doom-iwad

@@ -1,0 +1,35 @@

+diff d5938c597328adb8abb8785b4ac820ca0f094b6b uncommitted

+--- a/sys/src/games/doom/d_main.c

++++ b/sys/src/games/doom/d_main.c

+@@ -578,6 +578,7 @@

+ //

+ void IdentifyVersion (void)

+ {

++	int p;

+ 	char *wadfile, *slash;

+ 

+ 	if (M_CheckParm ("-shdev"))

+@@ -623,7 +624,22 @@

+ */

+ 	}

+ 

+-	if ( (wadfile = I_IdentifyWAD("doom2f.wad")) ) {

++	p = M_CheckParm ("-iwad");

++    if (p && p < myargc-1 && (wadfile = I_IdentifyWAD(myargv[p+1])) )

++    {

++ 		p = M_CheckParm ("-gamemode");

++ 		gamemode = commercial;

++		if (p && p < myargc-1)

++		{

++			if (!strcmp(myargv[p+1], "ultimate"))

++				gamemode = retail;

++			else if (!strcmp(myargv[p+1], "registered"))

++				gamemode = registered;

++			else if (!strcmp(myargv[p+1], "shareware"))

++				gamemode = shareware;

++		}

++		D_AddFile (wadfile);

++    } else if ( (wadfile = I_IdentifyWAD("doom2f.wad")) ) {

+ 		gamemode = commercial;

+ 		// C'est ridicule!

+ 		// Let's handle languages in config files, okay?