class AITargetCallbacksPlayer : AITargetCallbacks
{
	private int m_iChestBoneIndex;

	private PlayerBase m_Player;

	void AITargetCallbacksPlayer(PlayerBase pPlayer)
	{
		m_Player = pPlayer;
		
		m_iChestBoneIndex = m_Player.GetBoneIndexByName("Spine3");
	}
	
	override vector GetHeadPositionWS() 
	{ 
		vector position;
		MiscGameplayFunctions.GetHeadBonePos(m_Player, position);

		return position;
	}
	
	override vector GetVisionPointPositionWS(EntityAI pApplicant) 
	{ 
		DayZInfected infected = DayZInfected.Cast(pApplicant);
		if (infected)
		{
			DayZInfectedInputController ic = infected.GetInputController();
			if (ic)
			{
				int mindState = ic.GetMindState();
				if (mindState >= DayZInfectedConstants.MINDSTATE_ALERTED)
				{
					return GetHeadPositionWS();
				}
				else
				{
					if (m_iChestBoneIndex != -1)
						return m_Player.GetBonePositionWS(m_iChestBoneIndex);
				}				
			}
		}
		
		return m_Player.GetPosition() + "0 1 0";
	}
	
	override float GetMaxVisionRangeModifier(EntityAI pApplicant)
	{ 
		HumanMovementState state = new HumanMovementState();
		m_Player.GetMovementState(state);
		
		float mod = 1.0;
		float speedCoef = PlayerConstants.AI_VISIBILITY_RUN;
		float stanceCoef = PlayerConstants.AI_VISIBILITY_STANDING;
		
		//! player speed mofifications
		switch (AITargetCallbacksPlayer.StanceToMovementIdxTranslation(state))
		{
			case DayZPlayerConstants.MOVEMENTIDX_WALK:
				speedCoef = PlayerConstants.AI_VISIBILITY_WALK;
				break;
				
			case DayZPlayerConstants.MOVEMENTIDX_IDLE:
				speedCoef = PlayerConstants.AI_VISIBILITY_IDLE;
				break;
		}
		
		//! stance modification
		switch (state.m_iStanceIdx)
		{
			case DayZPlayerConstants.STANCEIDX_CROUCH:
			case DayZPlayerConstants.STANCEIDX_RAISEDCROUCH:
				stanceCoef = PlayerConstants.AI_VISIBILITY_CROUCH;
				break;
				
			case DayZPlayerConstants.STANCEIDX_PRONE:
			case DayZPlayerConstants.STANCEIDX_RAISEDPRONE:
				stanceCoef = PlayerConstants.AI_VISIBILITY_PRONE;
				break;
		}
		
		//! mean value of the coefs
		mod = (speedCoef + stanceCoef) / 2;
		
		return mod;
	}
	
	//! Translates players speed (idx) and corrects it by current stance
	//! used mainly for visibility/audibility of player to AI
	static int StanceToMovementIdxTranslation(HumanMovementState pState)
	{
		int movementSpeed = 0;

		switch (pState.m_iStanceIdx)
		{
			case DayZPlayerConstants.STANCEIDX_CROUCH:
				switch (pState.m_iMovement)
				{
					case DayZPlayerConstants.MOVEMENTIDX_IDLE:
						movementSpeed = DayZPlayerConstants.MOVEMENTIDX_IDLE;
						break;
	
					case DayZPlayerConstants.MOVEMENTIDX_WALK:
					case DayZPlayerConstants.MOVEMENTIDX_RUN:
						movementSpeed = DayZPlayerConstants.MOVEMENTIDX_WALK;
						break;
	
					case DayZPlayerConstants.MOVEMENTIDX_SPRINT:
						movementSpeed = DayZPlayerConstants.MOVEMENTIDX_CROUCH_RUN;
						break;
				}
				break;
	
			case DayZPlayerConstants.STANCEIDX_PRONE:
				switch (pState.m_iMovement)
				{
					case DayZPlayerConstants.MOVEMENTIDX_IDLE:
						movementSpeed = DayZPlayerConstants.MOVEMENTIDX_IDLE;
						break;
	
					default:
						movementSpeed = DayZPlayerConstants.MOVEMENTIDX_WALK;
						break;
				}
				break;
	
			default:
				movementSpeed = pState.m_iMovement;
		}
		
		return movementSpeed;
	}
	
	//! DEPRECATED
	private int m_iHeadBoneIndex;
}