Key-finder cheat

CHANGELOG.md

@@ -3,6 +3,7 @@
 - **_Night-Vision Visor Effect_** setting
 - **_Alternative Intermission Background_** setting
 - **Rewinding** [thanks @rfomin]
+- **_'IDDF'_ cheat**, to find a key on the Automap
 - **Support for optional health-based player pain sounds**
 - **_SUMMON_ cheat spawning mobjs at position of Automap pointer**
 - **_Higher god-mode face priority_** setting

README.md

@@ -149,6 +149,7 @@ All of these are CFG-Only, so their CVAR names are included.
 - **_'GIBBERS'_** to force gibbing on dying enemies, independently of damage dealt
 - **_'IDFLY'_** to fly (uses jumping/crouching keys) [i.b. PrBoom+, ZDoom]
 - **_'SUMMON'_** to spawn an actor based on its type index [i.b. ZDoom, PrBoomX]
+- **_'IDDF'_** to find a key on the Automap
 - **_'RESURRECT' / 'IDRES'_** to resurrect the player without toggling IDDQD [i.b. ZDoom]
 - **_'LINETARGET'_** to give some info on the player's linetarget [i.b. ZDoom]
 - **_'MDK'_** to perform a hitscan attack of 1-million damage [i.b. ZDoom]

docs/cheats.md

@@ -133,6 +133,10 @@ Actors are always spawned facing the same direction as the player.
 If the Automap is enabled and the Follow Mode is off, the actors will be spawned where the pointer is located.
 Otherwise, they will be spawned in front of the player.
 
+`IDDF[C][T]`  
+Find a key on the Automap.
+This cheat functions similarly to the `KEY` cheat, with `C` and `T` specifying the key color and type respectively.
+
 `RESURRECT` / `IDRES`  
 Resurrect the player without toggling IDDQD.
 

src/m_cheat.c

@@ -137,6 +137,10 @@ static void cheat_summonr();
 static int spawneetype = -1;
 static boolean spawneefriend;
 
+static void cheat_reveal_key();
+static void cheat_reveal_keyx();
+static void cheat_reveal_keyxx(int key);
+
 static void cheat_linetarget(); // Give info on the current linetarget
 static void cheat_mdk();        // Inspired by ZDoom's console command
 static void cheat_saitama();    // MDK Fist
@@ -388,12 +392,25 @@ struct cheat_s cheat[] = {
   {"nextmap",    NULL, not_net | not_demo, {cheat_normalexit}     },
   {"nextsecret", NULL, not_net | not_demo, {cheat_secretexit}     },
   {"turbo",      NULL, not_net | not_demo, {cheat_turbo},      -3 },
+
   {"summon",     NULL, not_net | not_demo, {cheat_summon}         }, // Summon "Menu"
   {"summone",    NULL, not_net | not_demo, {cheat_summone0}       }, // Summon Enemy "Menu"
   {"summone",    NULL, not_net | not_demo, {cheat_summone},    -3 }, // Summon a hostile mobj
   {"summonf",    NULL, not_net | not_demo, {cheat_summonf0}       }, // Summon Friend "Menu"
   {"summonf",    NULL, not_net | not_demo, {cheat_summonf},    -3 }, // Summon a friendly mobj
   {"summonr",    NULL, not_net | not_demo, {cheat_summonr}        }, // Repeat last summon
+
+  {"iddf",       NULL, not_net | not_demo, {cheat_reveal_key}      },
+  {"iddfb",      NULL, not_net | not_demo, {cheat_reveal_keyx}     },
+  {"iddfy",      NULL, not_net | not_demo, {cheat_reveal_keyx}     },
+  {"iddfr",      NULL, not_net | not_demo, {cheat_reveal_keyx}     },
+  {"iddfbc",     NULL, not_net | not_demo, {cheat_reveal_keyxx}, 0 },
+  {"iddfyc",     NULL, not_net | not_demo, {cheat_reveal_keyxx}, 2 },
+  {"iddfrc",     NULL, not_net | not_demo, {cheat_reveal_keyxx}, 1 },
+  {"iddfbs",     NULL, not_net | not_demo, {cheat_reveal_keyxx}, 5 },
+  {"iddfys",     NULL, not_net | not_demo, {cheat_reveal_keyxx}, 3 },
+  {"iddfrs",     NULL, not_net | not_demo, {cheat_reveal_keyxx}, 4 },
+
   {"linetarget", NULL, not_net | not_demo, {cheat_linetarget}     }, // Give info on the current linetarget
   {"mdk",        NULL, not_net | not_demo, {cheat_mdk}            },
   {"saitama",    NULL, not_net | not_demo, {cheat_saitama}        }, // MDK Fist
@@ -412,6 +429,8 @@ struct cheat_s cheat[] = {
 
 //-----------------------------------------------------------------------------
 
+extern int init_thinkers_count; // [Nugget]
+
 // [Nugget] /-----------------------------------------------------------------
 
 #ifdef NUGMAGIC
@@ -671,6 +690,66 @@ static void cheat_summonr()
   SummonMobj(spawneefriend);
 }
 
+static void cheat_reveal_key()
+{
+  if (automapactive != AM_FULL) { return; }
+
+  displaymsg("Key Finder: Red, Yellow or Blue?");
+}
+
+static void cheat_reveal_keyx()
+{
+  if (automapactive != AM_FULL) { return; }
+
+  displaymsg("Key Finder: Card or Skull?");
+}
+
+static void cheat_reveal_keyxx(int key)
+{
+  if (automapactive != AM_FULL) { return; }
+
+  static int last_count;
+  static mobj_t *last_mobj;
+
+  // If the thinkers have been wiped, addresses are invalid
+  if (last_count != init_thinkers_count)
+  {
+    last_count = init_thinkers_count;
+    last_mobj = NULL;
+  }
+
+  thinker_t *th, *start_th;
+
+  if (last_mobj)
+  { th = &(last_mobj->thinker); }
+  else
+  { th = &thinkercap; }
+
+  start_th = th;
+
+  boolean found = false;
+
+  do {
+    th = th->next;
+
+    if (th->function.p1 == (actionf_p1) P_MobjThinker)
+    {
+      mobj_t *mobj = (mobj_t *) th;
+
+      if (mobj->type == MT_MISC4 + key)
+      {
+        found = true;
+        followplayer = false;
+        AM_SetMapCenter(mobj->x, mobj->y);
+        P_SetTarget(&last_mobj, mobj);
+        break;
+      }
+    }
+  } while (th != start_th);
+
+  if (!found) { displaymsg("Key Finder: key not found"); }
+}
+
 // Give info on the current `linetarget`
 static void cheat_linetarget()
 {
@@ -1440,7 +1519,7 @@ static void cheat_reveal_secret()
 static void cheat_cycle_mobj(mobj_t **last_mobj, int *last_count,
                              int flags, int alive)
 {
-  extern int init_thinkers_count;
+  // [Nugget] Moved `extern init_thinkers_count` to global scope
   thinker_t *th, *start_th;
 
   // If the thinkers have been wiped, addresses are invalid