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game/server/tf/tf_autobalance.h

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+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose:
+//
+// $NoKeywords: $
+//=============================================================================
+
+#ifndef TF_AUTOBALANCE_H
+#define TF_AUTOBALANCE_H
+#ifdef _WIN32
+#pragma once
+#endif
+
+#include "GameEventListener.h"
+
+enum autobalance_state_t
+{
+	AB_STATE_INACTIVE = 0,
+	AB_STATE_MONITOR,
+	AB_STATE_FIND_VOLUNTEERS
+};
+
+enum volunteer_state_t
+{
+	AB_VOLUNTEER_STATE_ASKED = 0,
+	AB_VOLUNTEER_STATE_NO,
+	AB_VOLUNTEER_STATE_YES,
+};
+
+typedef struct
+{
+	CHandle<CTFPlayer> hPlayer;
+	volunteer_state_t  eState;
+	float flQueryExpireTime;
+} volunteer_info_s;
+
+//-----------------------------------------------------------------------------
+class CTFAutobalance : public CAutoGameSystemPerFrame
+{
+public:
+
+	CTFAutobalance();
+	~CTFAutobalance();
+
+	virtual char const *Name() { return "CTFAutobalance"; }
+
+	virtual void Shutdown();
+	virtual void LevelShutdownPostEntity();
+
+	// called after entities think
+	virtual void FrameUpdatePostEntityThink();
+
+	void ReplyReceived( CTFPlayer *pTFPlayer, bool bResponse );
+
+private:
+	void Reset();
+	bool ShouldBeActive() const;
+	bool AreTeamsUnbalanced();
+	void MonitorTeams();
+	bool HaveAlreadyAskedPlayer( CTFPlayer *pTFPlayer ) const;
+	int GetTeamAutoBalanceScore( int nTeam ) const;
+	int GetPlayerAutoBalanceScore( CTFPlayer *pTFPlayer ) const;
+	CTFPlayer *FindPlayerToAsk();
+	void FindVolunteers();
+	void SwitchVolunteers();
+	bool IsOkayToBalancePlayers();
+
+private:
+	int m_iCurrentState;
+	int m_iLightestTeam;
+	int m_iHeaviestTeam;
+	int m_nNeeded;
+	float m_flBalanceTeamsTime;
+
+	CUtlVector< volunteer_info_s > m_vecPlayersAsked;
+};
+
+CTFAutobalance *TFAutoBalance();
+
+#endif // TF_AUTOBALANCE_H