Implemented requested amb603. Added voice natives.

--HG--
extra : convert_revision : svn%3A39bc706e-5318-0410-9160-8a85361fbb7c/trunk%401241

plugins/include/sdktools.inc

@@ -28,6 +28,7 @@
 #include <sdktools_trace>
 #include <sdktools_tempents>
 #include <sdktools_tempents_stocks>
+#include <sdktools_voice>
 
 enum SDKCallType
 {

plugins/include/sdktools_voice.inc

@@ -0,0 +1,66 @@
+/**
+ * vim: set ts=4 :
+ * ===============================================================
+ * SourceMod (C)2004-2007 AlliedModders LLC.  All rights reserved.
+ * ===============================================================
+ *
+ *  This file is part of the SourceMod/SourcePawn SDK.  This file may only be used 
+ * or modified under the Terms and Conditions of its License Agreement, which is found 
+ * in LICENSE.txt.  The Terms and Conditions for making SourceMod extensions/plugins 
+ * may change at any time.  To view the latest information, see:
+ *   http://www.sourcemod.net/license.php
+ *
+ *
+ */
+
+#if defined _sdktools_voice_included
+  #endinput
+#endif
+#define _sdktools_voice_included
+
+/**
+ * @section voice flags.
+ */
+#define VOICE_NORMAL		0	/**< Allow the client to listen and speak normally. */
+#define VOICE_MUTED			1	/**< Mutes the client from speaking to everyone. */
+#define VOICE_SPEAKALL		2	/**< Allow the client to speak to everyone. */
+#define VOICE_LISTENALL		4	/**< Allow the client to listen to everyone. */
+ 
+/**
+ * @endsection
+ */
+
+/**
+ * Set the client listening flags.
+ *
+ * @param client		The client index
+ * @param flags		The voice flags
+ * @noreturn
+ */
+native SetClientListeningFlags(client, flags);
+
+/**
+ * Retrieve the client current listening flags.
+ *
+ * @param client		The client index
+ * @return			The current voice flags
+ */
+native GetClientListeningFlags(client);
+
+/**
+ * Set the receiver ability to listen to the sender.
+ *
+ * @param iReceiver		The listener index.
+ * @param iSender		The sender index.
+ * @return			True if successful otherwise false.
+ */
+native bool:SetClientListening(iReceiver, iSender, bool:bListen);
+
+/**
+ * Retrieves if the receiver can listen to the sender.
+ *
+ * @param iReceiver		The listener index.
+ * @param iSender		The sender index.
+ * @return			True if successful otherwise false.
+ */
+native bool:GetClientListening(iReceiver, iSender);