1 files changed, 109 insertions, 0 deletions
diff --git a/game/server/tf/countdown_announcer.h b/game/server/tf/countdown_announcer.h
new file mode 100644
index 0000000..a3022d0
--- /dev/null
+++ b/game/server/tf/countdown_announcer.h
@@ -0,0 +1,109 @@
+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose: 
+//
+// $NoKeywords: $
+//=============================================================================//
+
+#ifndef COUNTDOWN_ANNOUNCER_H
+#define COUNTDOWN_ANNOUNCER_H
+#ifdef _WIN32
+#pragma once
+#endif
+
+#include "mathlib/mathlib.h"
+#include "tf/tf_gamerules.h"
+
+//=============================================================================
+
+class CCountdownAnnouncer 
+{
+public:
+	struct TimeSounds {
+		const char *at60;
+		const char *at30;
+		const char *at10;
+		const char *at5;
+		const char *at4;
+		const char *at3;
+		const char *at2;
+		const char *at1;
+	};
+
+	CCountdownAnnouncer(const TimeSounds *pTimeSounds) 
+		: m_state( Disabled )
+		, m_pTimeSounds( pTimeSounds )
+		, m_fTimeRemain( 0 )
+		, m_iPrevSecondsRemain( 0 )
+	{}
+
+	void Disable() { m_state = Disabled; }
+
+	void Start( int durationSec ) 
+	{
+		if ( m_state == Running )
+			return;
+		m_state = Running;
+		m_fTimeRemain = (float) durationSec;
+		m_iPrevSecondsRemain = 1 + (int) m_fTimeRemain;
+		Tick( 0 );
+	}
+
+	// returns true once when time expires
+	bool Tick( float delta ) 
+	{
+		assert( delta >= 0 );
+		switch ( m_state )
+		{
+		case Disabled:
+		case Expired:
+			break;
+			
+		case Running: 
+			{
+				m_fTimeRemain = MAX( 0, m_fTimeRemain - delta );
+				const int iSecondsRemain = Ceil2Int( m_fTimeRemain );
+				if ( iSecondsRemain == m_iPrevSecondsRemain )
+					break;
+				m_iPrevSecondsRemain = iSecondsRemain;
+				switch( iSecondsRemain ) 
+				{
+				case 60: BroadcastSound( m_pTimeSounds->at60 ); break;
+				case 30: BroadcastSound( m_pTimeSounds->at30 ); break;
+				case 10: BroadcastSound( m_pTimeSounds->at10 ); break;
+				case 5: BroadcastSound( m_pTimeSounds->at5 ); break;
+				case 4: BroadcastSound( m_pTimeSounds->at4 ); break;
+				case 3: BroadcastSound( m_pTimeSounds->at3 ); break;
+				case 2: BroadcastSound( m_pTimeSounds->at2 ); break;
+				case 1: BroadcastSound( m_pTimeSounds->at1 ); break;
+				default: break;
+				}
+
+				if ( iSecondsRemain == 0 )
+				{
+					Disable();
+					return true;
+				}
+				break;
+			}
+		}
+		return false;
+	}
+
+	bool IsDisabled() const { return m_state == Disabled; }
+
+private:
+	void BroadcastSound( const char* name ) 
+	{ 
+		if ( name && *name )
+			TFGameRules()->BroadcastSound( 255, name );
+	}
+
+	enum State { Disabled, Running, Expired };
+	State m_state;
+	const TimeSounds *m_pTimeSounds;
+	float m_fTimeRemain;
+	int m_iPrevSecondsRemain;
+};
+
+#endif // COUNTDOWN_ANNOUNCER_H