Add CVAR README notes.

README.md

@@ -23,7 +23,6 @@ Install [PrBoom-Plus](https://github.com/coelckers/prboom-plus) and place the bi
     * Tab completion for commands/settings/cheats
     * Command listing below
 * "Buddha" cheat similar to GZDoom
-    * Also adds regeneration if you stand still, similar to modern FPS games
 * Targeted massacre cheat: `tntsem`
     * Kills only monsters currently targeting the player
 * Optional uncapped framerate limiting
@@ -93,6 +92,16 @@ Install [PrBoom-Plus](https://github.com/coelckers/prboom-plus) and place the bi
 - `summon <class>` (summon [class](https://github.com/JadingTsunami/prboomX#actor-names) enemy/thing/etc. to player's aim point position)
 - `summonfriend <class>` (summon [class](https://github.com/JadingTsunami/prboomX#actor-names) friendly enemy/thing/etc. to player's aim point position)
 - `freeze` (toggle freeze mode on/off)
+- `set [variable] [value]` (set or create CVAR with given value)
+- `unset [variable]` (delete CVAR)
+
+# Default CVARs
+
+CVARs are saved on exit. `unset` a CVAR to remove it from your personal config. `set` a CVAR to 1 to enable it.
+
+* `allmap_always` (default: off) - Always have the Computer Area Map powerup.
+* `regenerate` (default: off) - Regenerate health when standing still similar to modern FPS games.
+* `plat_skip` (default: off) - Platform wait skipping when use key is pressed.
 
 # Reference Material
 

prboom2/src/c_cmd.c

@@ -393,7 +393,7 @@ static void C_jds(char* cmd)
 
 static void C_platskip(char* cmd)
 {
-    dboolean plat_skip = C_CvarIsSet("plat_skip", NULL);
+    dboolean plat_skip = C_CvarIsSet("plat_skip");
     plat_skip ? C_CvarClear("plat_skip") : C_CvarSet("plat_skip");
     doom_printf("Platform wait skipping %s", !plat_skip ? "enabled" : "disabled");
 }

prboom2/src/c_cvar.c

@@ -329,16 +329,13 @@ void C_CvarExportToFile(FILE* f)
  *   and
  *  is a "nonzero"/non-null value, or is no-value type
  */
-dboolean C_CvarIsSet(const char* key, cvarstatus_t* status)
+dboolean C_CvarIsSet(const char* key)
 {
     cvarstatus_t s;
     cvar_t* cvar;
 
     cvar = C_CvarFind(key, &s);
 
-    if (status)
-        *status = s;
-
     return cvar && cvar->is_set;
 }
 

prboom2/src/c_cvar.h

@@ -62,7 +62,7 @@ void C_CvarExportToFile(FILE* f);
  *   and
  *  is a "nonzero"/non-null value, or is no-value type
  */
-dboolean C_CvarIsSet(const char* key, cvarstatus_t* status);
+dboolean C_CvarIsSet(const char* key);
 
 /* Set/Clear a CVAR (boolean flag), create if it does not exist */
 cvarstatus_t C_CvarSet(const char* key);

prboom2/src/g_game.c

@@ -1354,7 +1354,7 @@ static void G_PlayerFinishLevel(int player)
   p->fixedcolormap = 0;   // cancel ir gogles
   p->damagecount = 0;     // no palette changes
   p->bonuscount = 0;
-  if (C_CvarIsSet("allmap_always", NULL))
+  if (C_CvarIsSet("allmap_always"))
       p->powers[pw_allmap] = true;
 }
 
@@ -1413,7 +1413,7 @@ void G_PlayerReborn (int player)
     int cheats = p->cheats;
     memset (p, 0, sizeof(*p));
     p->cheats = cheats;
-    if (C_CvarIsSet("allmap_always", NULL))
+    if (C_CvarIsSet("allmap_always"))
         p->powers[pw_allmap] = true;
   }
 

prboom2/src/p_inter.c

@@ -282,7 +282,7 @@ dboolean P_GivePower(player_t *player, int power)
         player->mo->flags |= MF_SHADOW;
         break;
       case pw_allmap:
-        if (player->powers[pw_allmap] && !C_CvarIsSet("allmap_always", NULL))
+        if (player->powers[pw_allmap] && !C_CvarIsSet("allmap_always"))
           return false;
         break;
       case pw_strength:

prboom2/src/p_map.c

@@ -1856,7 +1856,7 @@ void P_UseLines (player_t*  player)
       S_StartSound (usething, sfx_noway);
 
   /* JDS: check if we have plat-raise on space */
-  if (C_CvarIsSet("plat_skip", NULL)) {
+  if (C_CvarIsSet("plat_skip")) {
       struct msecnode_s* ts = player->mo->touching_sectorlist;
       sector_t* s = ts->m_sector;
       while (s) {

prboom2/src/p_mobj.c

@@ -51,6 +51,7 @@
 #include "r_demo.h"
 #include "g_overflow.h"
 #include "e6y.h"//e6y
+#include "c_cvar.h"
 
 // [FG] colored blood and gibs
 dboolean colored_blood;
@@ -793,8 +794,7 @@ void P_MobjThinker (mobj_t* mobj)
 
   static unsigned int regen = 0;
 #define REGEN_STARTUP (35*2)
-  extern dboolean is_buddha();
-  if((mobj == players[consoleplayer].mo) && is_buddha()) {
+  if((mobj == players[consoleplayer].mo) && C_CvarIsSet("regenerate")) {
       if(mobj->momx == 0 && mobj->momy == 0) {
           regen++;
           if(players[consoleplayer].health < 100 && (regen > REGEN_STARTUP) && (regen % 6 == 0)) {