From 7a30b3452fb4cb61db7389ddac7b66a8d7537b94 Mon Sep 17 00:00:00 2001
From: hendricks266 <hendricks266@1a8010ca-5511-0410-912e-c29ae57300e0>
Date: Tue, 20 Feb 2018 11:55:20 +0000
Subject: [PATCH] CON: Add undefinecheat.

git-svn-id: https://svn.eduke32.com/eduke32@6679 1a8010ca-5511-0410-912e-c29ae57300e0
---
 source/duke3d/src/gamedef.cpp | 20 ++++++++++++++++++++
 source/duke3d/src/gamedef.h   |  1 +
 2 files changed, 21 insertions(+)

diff --git a/source/duke3d/src/gamedef.cpp b/source/duke3d/src/gamedef.cpp
index 849e5c1f4..acb13dddd 100644
--- a/source/duke3d/src/gamedef.cpp
+++ b/source/duke3d/src/gamedef.cpp
@@ -505,6 +505,7 @@ static tokenmap_t const vm_keywords[] =
     { "time",                   CON_TIME },
     { "tip",                    CON_TIP },
     { "tossweapon",             CON_TOSSWEAPON },
+    { "undefinecheat",          CON_UNDEFINECHEAT },
     { "undefinegamefunc",       CON_UNDEFINEGAMEFUNC },
     { "undefinelevel",          CON_UNDEFINELEVEL },
     { "undefineskill",          CON_UNDEFINESKILL },
@@ -583,6 +584,7 @@ static tokenmap_t const vm_keywords[] =
     { "print",                  CON_QUOTE },
 
     { "dc",                     CON_DEFINECHEAT },
+    { "udc",                    CON_UNDEFINECHEAT },
     { "ck",                     CON_CHEATKEYS },
 
     { "qputs",                  CON_REDEFINEQUOTE },
@@ -5898,6 +5900,24 @@ repeatcase:
             g_scriptPtr -= 2;
             continue;
 
+        case CON_UNDEFINECHEAT:
+            g_scriptPtr--;
+
+            C_GetNextValue(LABEL_DEFINE);
+            g_scriptPtr--;
+            j = *g_scriptPtr;
+
+            if (EDUKE32_PREDICT_FALSE((unsigned)j >= NUMCHEATS))
+            {
+                initprintf("%s:%d: error: cheat undefinition attempts to undefine nonexistent cheat.\n",g_scriptFileName,g_lineNumber);
+                g_errorCnt++;
+                C_NextLine();
+                continue;
+            }
+
+            CheatStrings[j][0] = '\0';
+            continue;
+
         case CON_DEFINECHEAT:
             g_scriptPtr--;
             C_GetNextValue(LABEL_DEFINE);
diff --git a/source/duke3d/src/gamedef.h b/source/duke3d/src/gamedef.h
index 6d7a22f0f..e4aa3a112 100644
--- a/source/duke3d/src/gamedef.h
+++ b/source/duke3d/src/gamedef.h
@@ -1222,6 +1222,7 @@ enum ScriptKeywords_t
     CON_IFVARVARB,          // 421
     CON_IFVARBE,            // 422
     CON_IFVARVARBE,         // 423
+    CON_UNDEFINECHEAT,      // 424
     CON_END
 };
 // KEEPINSYNC with the keyword list in lunatic/con_lang.lua