//========= Copyright Valve Corporation, All rights reserved. ============//
//
// Purpose:
//
// $NoKeywords: $
//=============================================================================//

#ifndef NPC_STALKER_H
#define NPC_STALKER_H
#ifdef _WIN32
#pragma once
#endif

#include "ai_basenpc.h"
#include "ai_behavior.h"
#include "ai_behavior_actbusy.h"
#include "entityoutput.h"

class CBeam;
class CSprite;
class CScriptedTarget;

typedef CAI_BehaviorHost<CAI_BaseNPC> CAI_BaseStalker;

class CNPC_Stalker : public CAI_BaseStalker {
    DECLARE_CLASS(CNPC_Stalker, CAI_BaseStalker);

   public:
    float m_flNextAttackSoundTime;
    float m_flNextBreatheSoundTime;
    float m_flNextScrambleSoundTime;
    float m_flNextNPCThink;

    // ------------------------------
    //	Laser Beam
    // ------------------------------
    int m_eBeamPower;
    Vector m_vLaserDir;
    Vector m_vLaserTargetPos;
    float m_fBeamEndTime;
    float m_fBeamRechargeTime;
    float m_fNextDamageTime;
    float m_nextSmokeTime;
    float m_bPlayingHitWall;
    float m_bPlayingHitFlesh;
    CBeam *m_pBeam;
    CSprite *m_pLightGlow;
    int m_iPlayerAggression;
    float m_flNextScreamTime;

    void KillAttackBeam(void);
    void DrawAttackBeam(void);
    void CalcBeamPosition(void);
    Vector LaserStartPosition(Vector vStalkerPos);

    Vector m_vLaserCurPos;  // Last position successfully burned
    bool InnateWeaponLOSCondition(const Vector &ownerPos,
                                  const Vector &targetPos, bool bSetConditions);

    // ------------------------------
    //	Dormancy
    // ------------------------------
    CAI_Schedule *WakeUp(void);
    void GoDormant(void);

   public:
    void Spawn(void);
    void Precache(void);
    bool CreateBehaviors();
    float MaxYawSpeed(void);
    Class_T Classify(void);

    void PrescheduleThink();

    bool IsValidEnemy(CBaseEntity *pEnemy);

    void StartTask(const Task_t *pTask);
    void RunTask(const Task_t *pTask);
    virtual int SelectSchedule(void);
    virtual int TranslateSchedule(int scheduleType);
    int OnTakeDamage_Alive(const CTakeDamageInfo &info);
    void OnScheduleChange();

    void StalkerThink(void);
    void NotifyDeadFriend(CBaseEntity *pFriend);

    int MeleeAttack1Conditions(float flDot, float flDist);
    int RangeAttack1Conditions(float flDot, float flDist);
    void HandleAnimEvent(animevent_t *pEvent);

    bool FValidateHintType(CAI_Hint *pHint);
    Activity GetHintActivity(short sHintType, Activity HintsActivity);
    float GetHintDelay(short sHintType);

    void IdleSound(void);
    void DeathSound(const CTakeDamageInfo &info);
    void PainSound(const CTakeDamageInfo &info);

    void Event_Killed(const CTakeDamageInfo &info);
    void DoSmokeEffect(const Vector &position);

    void AddZigZagToPath(void);
    void StartAttackBeam();
    void UpdateAttackBeam();

    CNPC_Stalker(void);

    DECLARE_DATADESC();
    DEFINE_CUSTOM_AI;

   private:
    CAI_ActBusyBehavior m_ActBusyBehavior;
};

#endif  // NPC_STALKER_H