/*
===========================================================================
Copyright (C) 2015 the OpenMoHAA team

This file is part of OpenMoHAA source code.

OpenMoHAA source code 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 2 of the License,
or (at your option) any later version.

OpenMoHAA source code 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 OpenMoHAA source code; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
===========================================================================
*/
// playerbot.h: Multiplayer bot system.

#ifndef __PLAYERBOT_H__
#define __PLAYERBOT_H__

#include "player.h"
#include "navigate.h"
#include "actorpath.h"

#define MAX_BOT_FUNCTIONS			5

typedef struct nodeAttract_s {
	float				m_fRespawnTime;
	AttractiveNodePtr	m_pNode;
} nodeAttract_t;

class PlayerBot : public Player
{
	struct botfunc_t {
		bool		( PlayerBot::*CheckCondition )( void );
		void		( PlayerBot::*BeginState )( void );
		void		( PlayerBot::*EndState )( void );
		void		( PlayerBot::*ThinkState )( void );
	};

private:
	static botfunc_t botfuncs[];

	// Paths
	ActorPath			m_Path;
	Vector				m_vTargetPos;
	Vector				m_vCurrentGoal;
	Vector				m_vLastValidDir;
	Vector				m_vLastValidGoal;
	bool				m_bPathing;
	bool				m_bTempAway;
	bool				m_bAimPath;
	bool				m_bDeltaMove;
	int					m_iTempAwayTime;
	int					m_iCheckPathTime;
	AttractiveNodePtr	m_pPrimaryAttract;
	float				m_fAttractTime;
	Container< nodeAttract_t * > m_attractList;

	// States
	int					m_iCuriousTime;
	int					m_iAttackTime;
	Vector				m_vLastCuriousPos;
	Vector				m_vOldEnemyPos;
	Vector				m_vLastEnemyPos;
	Vector				m_vLastDeathPos;
	SafePtr< Sentient >	m_pEnemy;

	// Input
	usercmd_t	m_botCmd;
	usereyes_t	m_botEyes;

	// Direction
	Vector	m_vTargetAng;
	Vector	m_vCurrentAng;
	Vector	m_vAngSpeed;
	float	m_fYawSpeedMult;

	// States
	int					m_StateCount;
	unsigned int		m_StateFlags;
	ScriptThreadLabel	m_RunLabel;

private:
	void			CheckAttractiveNodes( void );
	void			MoveThink( void );
	void			TurnThink( void );
	void			CheckEndPos( void );
	void			CheckJump( void );
	void			CheckUse( void );

	void			State_DefaultBegin( void );
	void			State_DefaultEnd( void );
	void			State_Reset( void );

	static void		InitState_Idle( botfunc_t *func );
	bool			CheckCondition_Idle( void );
	void			State_BeginIdle( void );
	void			State_EndIdle( void );
	void			State_Idle( void );

	static void		InitState_Curious( botfunc_t *func );
	bool			CheckCondition_Curious( void );
	void			State_BeginCurious( void );
	void			State_EndCurious( void );
	void			State_Curious( void );

	static void		InitState_Attack( botfunc_t *func );
	bool			CheckCondition_Attack( void );
	void			State_BeginAttack( void );
	void			State_EndAttack( void );
	void			State_Attack( void );

	static void		InitState_Grenade( botfunc_t *func );
	bool			CheckCondition_Grenade( void );
	void			State_BeginGrenade( void );
	void			State_EndGrenade( void );
	void			State_Grenade( void );

	static void		InitState_Weapon( botfunc_t *func );
	bool			CheckCondition_Weapon( void );
	void			State_BeginWeapon( void );
	void			State_EndWeapon( void );
	void			State_Weapon( void );

	void			CheckStates( void );

public:
	CLASS_PROTOTYPE( PlayerBot );

	PlayerBot();

	static void		Init( void );

	void			GetEyeInfo( usereyes_t *eyeinfo );
	void			GetUsercmd( usercmd_t *ucmd );
	void			SetTargetAngles( Vector vAngles );

	void			UpdateBotStates( void );
	void			CheckReload( void );

	void			AimAt( Vector vPos );
	void			AimAtAimNode( void );

	void			AvoidPath( Vector vPos, float fAvoidRadius, Vector vPreferredDir = vec_zero, float *vLeashHome = NULL, float fLeashRadius = 0.0f );
	void			MoveNear( Vector vNear, float fRadius, float *vLeashHome = NULL, float fLeashRadius = 0.0f );
	void			MoveTo( Vector vPos, float *vLeashHome = NULL, float fLeashRadius = 0.0f );
	bool			MoveToBestAttractivePoint( int iMinPriority = 0 );

	bool			CanMoveTo( Vector vPos );
	bool			MoveDone( void );
	bool			IsMoving( void );
	void			ClearMove( void );

	void			NoticeEvent( Vector vPos, int iType, Entity *pEnt, float fDistanceSquared, float fRadiusSquared );
	void			ClearEnemy( void );

	void			SendCommand( const char *text );

	void			setAngles( Vector angles ) override;
	void			updateOrigin( void ) override;

	void			Spawned( void ) override;

	void			Killed( Event *ev );
	void			GotKill( Event *ev );
	void			EventStuffText( Event *ev );
};

#endif /* playerbot.h */