From 3ebd7536db2fd797f4d4ee5fdb7610d2f71e945e Mon Sep 17 00:00:00 2001
From: Night Owl <sepulkarium45@yahoo.com>
Date: Sat, 11 Nov 2017 10:49:43 +0500
Subject: [PATCH] Add ambient_fmodstream implementation.

---
 cl_dll/hud.cpp    | 17 ++++++++++++++++
 dlls/client.cpp   |  7 +++++++
 dlls/player.cpp   |  2 ++
 dlls/triggers.cpp | 51 +++++++++++++++++++++++++++++++++++++++++++++++
 4 files changed, 77 insertions(+)

diff --git a/cl_dll/hud.cpp b/cl_dll/hud.cpp
index 05bda284..9e3ed4dd 100644
--- a/cl_dll/hud.cpp
+++ b/cl_dll/hud.cpp
@@ -78,6 +78,20 @@ int __MsgFunc_GameMode( const char *pszName, int iSize, void *pbuf )
 	return gHUD.MsgFunc_GameMode( pszName, iSize, pbuf );
 }
 
+int __MsgFunc_PlayMP3( const char *pszName, int iSize, void *pbuf )
+{
+	BEGIN_READ( pbuf, iSize );
+
+	gEngfuncs.pfnPrimeMusicStream( READ_STRING(), 1 );
+
+	return 1;
+}
+
+void __CmdFunc_StopMP3( void )
+{
+	gEngfuncs.pfnPrimeMusicStream( 0, 0 );
+}
+
 // TFFree Command Menu
 void __CmdFunc_OpenCommandMenu( void )
 {
@@ -183,6 +197,9 @@ void CHud::Init( void )
 	// VGUI Menus
 	HOOK_MESSAGE( VGUIMenu );
 
+	HOOK_MESSAGE( PlayMP3 );
+	HOOK_COMMAND( "stopaudio", StopMP3 );
+
 	CVAR_CREATE( "hud_classautokill", "1", FCVAR_ARCHIVE | FCVAR_USERINFO );		// controls whether or not to suicide immediately on TF class switch
 	CVAR_CREATE( "hud_takesshots", "0", FCVAR_ARCHIVE );		// controls whether or not to automatically take screenshots at the end of a round
 	hud_textmode = CVAR_CREATE ( "hud_textmode", "0", FCVAR_ARCHIVE );
diff --git a/dlls/client.cpp b/dlls/client.cpp
index 578534e3..06a00a2c 100644
--- a/dlls/client.cpp
+++ b/dlls/client.cpp
@@ -49,6 +49,7 @@ extern void CopyToBodyQue( entvars_t* pev );
 extern int giPrecacheGrunt;
 extern int gmsgSayText;
 extern int gmsgBhopcap;
+extern int gmsgPlayMP3;
 
 extern cvar_t allow_spectators;
 
@@ -487,6 +488,12 @@ void ClientCommand( edict_t *pEntity )
 	{
 		GetClassPtr( (CBasePlayer *)pev )->ForceClientDllUpdate(); 
 	}
+	else if( FStrEq(pcmd, "playaudio" ) )
+	{
+		MESSAGE_BEGIN( MSG_ONE, gmsgPlayMP3, NULL, ENT( pev ) );
+			WRITE_STRING( (char *)CMD_ARGV( 1 ) );
+		MESSAGE_END();
+	}
 	else if( FStrEq(pcmd, "give" ) )
 	{
 		if( g_flWeaponCheat != 0.0 )
diff --git a/dlls/player.cpp b/dlls/player.cpp
index ea803ecf..26b62abc 100644
--- a/dlls/player.cpp
+++ b/dlls/player.cpp
@@ -185,6 +185,7 @@ int gmsgShowMenu = 0;
 int gmsgGeigerRange = 0;
 int gmsgTeamNames = 0;
 int gmsgBhopcap = 0;
+int gmsgPlayMP3 = 0;
 
 int gmsgStatusText = 0;
 int gmsgStatusValue = 0;
@@ -232,6 +233,7 @@ void LinkUserMessages( void )
 	gmsgAmmoX = REG_USER_MSG( "AmmoX", 2 );
 	gmsgTeamNames = REG_USER_MSG( "TeamNames", -1 );
 	gmsgBhopcap = REG_USER_MSG( "Bhopcap", 1 );
+	gmsgPlayMP3 = REG_USER_MSG( "PlayMP3", -1 );
 
 	gmsgStatusText = REG_USER_MSG( "StatusText", -1 );
 	gmsgStatusValue = REG_USER_MSG( "StatusValue", 3 );
diff --git a/dlls/triggers.cpp b/dlls/triggers.cpp
index 8171a195..1a152518 100644
--- a/dlls/triggers.cpp
+++ b/dlls/triggers.cpp
@@ -771,6 +771,57 @@ void CTargetCDAudio::Play( void )
 	UTIL_Remove( this );
 }
 
+#define SF_REMOVE_ON_FIRE 1
+
+class CTargetFMODAudio : public CPointEntity
+{
+public:
+	void Spawn( void );
+	void Use( CBaseEntity *pActivator, CBaseEntity *pCaller, USE_TYPE useType, float value );
+
+	BOOL m_bPlaying;
+};
+
+LINK_ENTITY_TO_CLASS( ambient_fmodstream, CTargetFMODAudio )
+LINK_ENTITY_TO_CLASS( trigger_mp3audio, CTargetFMODAudio )
+
+void CTargetFMODAudio::Spawn( void )
+{
+	pev->solid = SOLID_NOT;
+	pev->movetype = MOVETYPE_NONE;
+
+	m_bPlaying = FALSE; // start out not playing
+}
+
+void CTargetFMODAudio::Use( CBaseEntity *pActivator, CBaseEntity *pCaller, USE_TYPE useType, float value )
+{
+	char command[64];
+
+	if( !pActivator->IsPlayer()) // activator should be a player
+		return;
+
+	if( !m_bPlaying ) // if we're not playing, start playing!
+	{
+		m_bPlaying = TRUE;
+	}
+	else
+	{
+		// if we're already playing, stop the mp3
+		m_bPlaying = FALSE;
+		CLIENT_COMMAND( pActivator->edict(), "stopaudio\n" );
+		return;
+	}
+
+	// issue the play/loop command
+	sprintf( command, "playaudio %s\n", STRING( pev->message ) );
+
+	CLIENT_COMMAND( pActivator->edict(), command );
+
+	// remove if set
+	if( FBitSet( pev->spawnflags, SF_REMOVE_ON_FIRE ) )
+		UTIL_Remove( this );
+}
+
 //=====================================
 //
 // trigger_hurt - hurts anything that touches it. if the trigger has a targetname, firing it will toggle state