Adds r_maxfps and some better error messages for cases where the user didn't even copy a grp into their EDuke32 dir

git-svn-id: https://svn.eduke32.com/eduke32@1086 1a8010ca-5511-0410-912e-c29ae57300e0

polymer/build/src/cache1d.c

@@ -422,7 +422,7 @@ static char toupperlookup[256] =
     0xf0,0xf1,0xf2,0xf3,0xf4,0xf5,0xf6,0xf7,0xf8,0xf9,0xfa,0xfb,0xfc,0xfd,0xfe,0xff
 };
 
-static int numgroupfiles = 0;
+int numgroupfiles = 0;
 static int gnumfiles[MAXGROUPFILES];
 static int groupfil[MAXGROUPFILES] = {-1,-1,-1,-1,-1,-1,-1,-1};
 static int groupfilpos[MAXGROUPFILES];

polymer/eduke32/source/config.c

@@ -589,6 +589,7 @@ extern void check_valid_color(int *color,int prev_color);
 extern palette_t crosshair_colors;
 extern palette_t default_crosshair_colors;
 extern char mod_dir[BMAX_PATH];
+extern int r_maxfps;
 
 int32 CONFIG_ReadSetup(void)
 {
@@ -684,6 +685,16 @@ int32 CONFIG_ReadSetup(void)
             r_ambientlightrecip = 1.f/r_ambientlight;
         }
 
+        SCRIPT_GetNumber(ud.config.scripthandle, "Screen Setup", "MaxFPS",&r_maxfps);
+        r_maxfps = max(0,min(1000,r_maxfps));
+        {
+            extern int g_FrameDelay;
+
+            if (r_maxfps)
+                g_FrameDelay = (1000/r_maxfps);
+            else g_FrameDelay = 0;
+        }
+
 #if defined(POLYMOST) && defined(USE_OPENGL)
         SCRIPT_GetNumber(ud.config.scripthandle, "Screen Setup", "ScreenBPP", &ud.config.ScreenBPP);
         if (ud.config.ScreenBPP < 8) ud.config.ScreenBPP = 32;
@@ -1023,6 +1034,7 @@ void CONFIG_WriteSetup(void)
     SCRIPT_PutString(ud.config.scripthandle, "Screen Setup", "VidContrast",tempbuf);
     Bsprintf(tempbuf,"%.2f",r_ambientlight);
     SCRIPT_PutString(ud.config.scripthandle, "Screen Setup", "AmbientLight",tempbuf);
+    SCRIPT_PutNumber(ud.config.scripthandle, "Screen Setup", "MaxFPS", r_maxfps, false, false);
 #ifdef _WIN32
     SCRIPT_PutNumber(ud.config.scripthandle, "Updates", "CheckForUpdates", ud.config.CheckForUpdates, false, false);
     SCRIPT_PutNumber(ud.config.scripthandle, "Updates", "LastUpdateCheck", ud.config.LastUpdateCheck, false, false);

polymer/eduke32/source/game.c

@@ -158,6 +158,9 @@ int hud_showmapname = 1;
 
 int leveltexttime = 0;
 
+int r_maxfps = 0;
+unsigned int g_FrameDelay = 0;
+
 int kopen4loadfrommod(char *filename, char searchfirst)
 {
     static char fn[BMAX_PATH];
@@ -11356,6 +11359,12 @@ MAIN_LOOP_RESTART:
             vscrn();
         }
 
+        {
+            static unsigned int lastrender = 0;
+
+            if (r_maxfps == 0 || getticks() >= lastrender+g_FrameDelay)
+            {
+                lastrender = getticks();
                 displayrooms(screenpeek,i);
                 displayrest(i);
 
@@ -11368,9 +11377,6 @@ MAIN_LOOP_RESTART:
                     gametext(160,70,"PRESS F1 TO ACCEPT, F2 TO DECLINE",0,2+8+16);
                 }
 
-        if (g_player[myconnectindex].ps->gm&MODE_DEMO)
-            goto MAIN_LOOP_RESTART;
-
                 if (debug_on) caches();
 
                 checksync();
@@ -11382,6 +11388,11 @@ MAIN_LOOP_RESTART:
                 }
 
                 nextpage();
+            }
+        }
+
+        if (g_player[myconnectindex].ps->gm&MODE_DEMO)
+            goto MAIN_LOOP_RESTART;
 
         while (!(g_player[myconnectindex].ps->gm&MODE_MENU) && ready2send && totalclock >= ototalclock+TICSPERFRAME)
             faketimerhandler();

polymer/eduke32/source/gamedef.c

@@ -5634,14 +5634,20 @@ void loadefs(const char *filenam)
     fp = kopen4loadfrommod((char *)filenam,loadfromgrouponly);
     if (fp == -1) // JBF: was 0
     {
+        extern int numgroupfiles;
+
         if (loadfromgrouponly == 1)
-            gameexit("Missing CON file(s); replace duke3d.grp with a known good copy.");
-        else
         {
-            Bsprintf(tempbuf,"CON file `%s' missing.", filenam);
-            gameexit(tempbuf);
-            return;
+            Bsprintf(tempbuf,"'%s' missing CON files, reinstall Duke Nukem 3D.",duke3dgrp);
         }
+        else if (numgroupfiles == 0)
+        {
+            Bsprintf(tempbuf,"Duke Nukem 3D was not found in this directory.  A copy of '%s' or its contents is needed to run EDuke32.\n"
+                     "You can find '%s' in the \"DN3DINST\" or \"ATOMINST\" directory on your Duke Nukem 3D installation CD-ROM.",
+                     duke3dgrp,duke3dgrp);
+        }
+        else Bsprintf(tempbuf,"CON file `%s' missing.", filenam);
+        gameexit(tempbuf);
 
         //loadfromgrouponly = 1;
         return; //Not there

polymer/eduke32/source/osdcmds.c

@@ -37,6 +37,7 @@ struct osdcmd_cheatsinfo osdcmd_cheatsinfo_stat;
 float r_ambientlight = 1.0, r_ambientlightrecip = 1.0;
 extern int althud_numbertile, althud_numberpal, althud_shadows, althud_flashing, hud_glowingquotes;
 extern int hud_showmapname;
+extern int r_maxfps;
 
 static inline int osdcmd_quit(const osdfuncparm_t *parm)
 {
@@ -1401,6 +1402,23 @@ static int osdcmd_visibility(const osdfuncparm_t *parm)
     return OSDCMD_OK;
 }
 
+static int osdcmd_maxfps(const osdfuncparm_t *parm)
+{
+    int i;
+    extern int g_FrameDelay;
+
+    if (parm->numparms != 1)
+    {
+        OSD_Printf("\"r_maxfps\" is \"%d\"\n",r_maxfps);
+        return OSDCMD_SHOWHELP;
+    }
+    r_maxfps = max(0,min(1000,atol(parm->parms[0])));
+    if (r_maxfps) g_FrameDelay = (1000/r_maxfps);
+    else g_FrameDelay = 0;
+    OSD_Printf("%s\n",parm->raw);
+    return OSDCMD_OK;
+}
+
 int registerosdcommands(void)
 {
     unsigned int i;
@@ -1463,6 +1481,7 @@ int registerosdcommands(void)
     OSD_RegisterFunction("restartvid","restartvid: reinitializes the video mode",osdcmd_restartvid);
 
     OSD_RegisterFunction("r_ambientlight", "r_ambientlight: sets the global map light level",osdcmd_visibility);
+    OSD_RegisterFunction("r_maxfps", "r_maxfps: sets a fps cap",osdcmd_maxfps);
 
     OSD_RegisterFunction("sensitivity","sensitivity <value>: changes the mouse sensitivity", osdcmd_sensitivity);
     OSD_RegisterFunction("addlogvar","addlogvar <gamevar>: prints the value of a gamevar", osdcmd_addlogvar);