Index: src/game/g_local.h
===================================================================
--- src/game/g_local.h	(revision 809)
+++ src/game/g_local.h	(working copy)
@@ -340,6 +340,9 @@
   int                 nameChangeTime;
   int                 nameChanges;
 
+  int                 lastChatTime;       // level.time of last chat
+  int                 chatPoints;         // number of chat points accumulated.
+
   vec3_t              lastDeathLocation;
   char                guid[ 33 ];
   char                ip[ 16 ];
@@ -1101,6 +1104,9 @@
 extern  vmCvar_t  g_currentMap;
 extern  vmCvar_t  g_initialMapRotation;
 extern  vmCvar_t  g_chatTeamPrefix;
+extern  vmCvar_t  g_chatRateLimit;
+extern  vmCvar_t  g_chatMaxPoints;
+extern  vmCvar_t  g_chatSafeTime;
 
 extern  vmCvar_t  g_mapConfigs;
 
Index: src/game/g_main.c
===================================================================
--- src/game/g_main.c	(revision 809)
+++ src/game/g_main.c	(working copy)
@@ -114,6 +114,9 @@
 
 vmCvar_t  g_mapConfigs;
 vmCvar_t  g_chatTeamPrefix;
+vmCvar_t  g_chatRateLimit;
+vmCvar_t  g_chatMaxPoints;
+vmCvar_t  g_chatSafeTime;
 
 vmCvar_t  g_admin;
 vmCvar_t  g_adminLog;
@@ -212,6 +215,9 @@
   { &g_disabledBuildables, "g_disabledBuildables", "", CVAR_ROM, 0, qfalse  },
 
   { &g_chatTeamPrefix, "g_chatTeamPrefix", "0", CVAR_ARCHIVE  },
+  { &g_chatRateLimit, "g_chatRateLimit", "0", CVAR_ARCHIVE, 0, qfalse  },
+  { &g_chatMaxPoints, "g_chatMaxPoints", "3000", CVAR_ARCHIVE, 0, qfalse  },
+  { &g_chatSafeTime, "g_chatSafeTime", "1500", CVAR_ARCHIVE, 0, qfalse  },
 
   { &g_debugMapRotation, "g_debugMapRotation", "0", 0, 0, qfalse  },
   { &g_currentMapRotation, "g_currentMapRotation", "-1", 0, 0, qfalse  }, // -1 = NOT_ROTATING
Index: src/game/g_cmds.c
===================================================================
--- src/game/g_cmds.c	(revision 809)
+++ src/game/g_cmds.c	(working copy)
@@ -744,12 +744,39 @@
   int     j;
   gentity_t *other;
   int     color;
+  int     millisSinceLastChat;
   char    prefix[ 5 ];
   char    name[ 64 ];
   // don't let text be too long for malicious reasons
   char    text[ MAX_SAY_TEXT ];
   char    location[ 64 ];
 
+  // Bail if the text is blank.
+  if( ! chatText[0] )
+     return;
+
+  // Rate limit.  If they're talking too fast, determine that and return.
+  if( g_chatRateLimit.integer )
+  {
+    millisSinceLastChat = level.time - ent->client->pers.lastChatTime;
+    if( millisSinceLastChat < g_chatSafeTime.integer )
+      ent->client->pers.chatPoints += ( g_chatSafeTime.integer - millisSinceLastChat );
+    else
+    {
+      ent->client->pers.chatPoints -= ( millisSinceLastChat - g_chatSafeTime.integer );
+      if( ent->client->pers.chatPoints < 0 )
+        ent->client->pers.chatPoints = 0;
+    }
+   
+    ent->client->pers.lastChatTime = level.time;
+
+    if( ent->client->pers.chatPoints > g_chatMaxPoints.integer )
+    {
+      trap_SendServerCommand( ent-g_entities, "print \"Your chat is rate-limited; wait before chatting again\n\"" );
+      return;
+    }
+  }
+
   if (g_chatTeamPrefix.integer)
     switch( ent->client->pers.teamSelection)
     {