Finished base management for volumetric features. Code compiles, but this feature is not tested so far!

Made CVARs for volumetric features module.
Made trigger delay attribute for volumes, per player. Count down for n seconds after when a player enter. When leaving a volume trigger delay is aborted.
Made parameter parsing functions; paramtools.inc.
Made functions for setting and parsing generic volume attributes.
Updated header in files to volumetric features and paramtools.inc.
Removed unused knockback functions in zadmin.inc.
Made certain class functions into stock functions.

src/zr/volfeatures/volevents.inc

@@ -1,11 +1,26 @@
 /*
  * ============================================================================
  *
- *   Zombie:Reloaded
+ *  Zombie:Reloaded
  *
- *   File:          volevents.inc
- *   Type:          Module
- *   Description:   Handles volumetric feature events.
+ *  File:           volevents.inc
+ *  Type:           Module
+ *  Description:    Handles generic events for volumetric features.
+ *
+ *  Copyright (C) 2009  Greyscale, Richard Helgeby
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  * ============================================================================
  */
@@ -18,7 +33,12 @@
  */
 VolOnPlayerEnter(client, volumeIndex)
 {
-    // TODO: Check if volfeatures is enabled first.
+    // Check if volumetric features is enabled.
+    if (!VolEnabled)
+    {
+        // Volumetric features disabled.
+        return;
+    }
 
     // Forward event to features.
     // VolAnticampStart(client, volume);
@@ -32,7 +52,12 @@ VolOnPlayerEnter(client, volumeIndex)
  */
 VolOnPlayerLeave(client, volumeIndex)
 {
-    // TODO: Check if volfeatures is enabled first.
+    // Check if volumetric features is enabled.
+    if (!VolEnabled)
+    {
+        // Volumetric features disabled.
+        return;
+    }
     
     // Forward event to features.
     // VolAnticampStop(client, volume);
@@ -45,14 +70,40 @@ VolOnPlayerLeave(client, volumeIndex)
  */
 VolOnPlayerSpawn(client)
 {
+    // Check if volumetric features is enabled.
+    if (!VolEnabled)
+    {
+        // Volumetric features disabled.
+        return;
+    }
+    
+    // Cache player location.
     VolUpdatePlayerLocation(client);
 }
 
+/**
+ * Called when a player disconnects.
+ *
+ * @param client    The client index.
+ */
+VolOnPlayerDisconnect(client)
+{
+    // Disable trigger delay counters.
+    VolResetCountDown(client);
+}
+
 /**
  * Called when the round starts. Main enable event for volumetric features.
  */
 VolOnRoundStart()
 {
+    // Check if volumetric features is enabled.
+    if (!VolEnabled)
+    {
+        // Volumetric features disabled.
+        return;
+    }
+    
     // Start main timer.
     VolStartUpdateTimer();
 }
@@ -68,3 +119,23 @@ VolOnRoundEnd()
     // Forward stop event to features.
     // VolAnticampStop();
 }
+
+/**
+ * Called when a volume is disabled.
+ * @param volumeIndex   The volume index.
+ */
+VolOnVolumeDisabled(volumeIndex)
+{
+    // Forward stop event to features.
+    
+}
+
+/**
+ * Called when a volume is enabled.
+ * @param volumeIndex   The volume index.
+ */
+VolOnVolumeEnabled(volumeIndex)
+{
+    // Forward start event to features.
+    
+}