class CCTWaterSurface : CCTBase
{
	protected const int HEIGHT_DIFF_LIMIT_METERS 	= 1.0;

	protected float m_MaximalActionDistanceSq;
	protected string m_SurfaceType; //!DEPRECATED
	protected ref array<string> m_AllowedSurfaceList;
	
	void CCTWaterSurface(float maximal_target_distance = UAMaxDistances.DEFAULT, string surfaceType = "")
	{
		m_MaximalActionDistanceSq 	= maximal_target_distance * maximal_target_distance;
		m_SurfaceType 				= surfaceType;
		
		m_AllowedSurfaceList		= new array<string>();
		surfaceType.Split("|", m_AllowedSurfaceList);
	}
	
	override bool Can(PlayerBase player, ActionTarget target)
	{
		if (!target || (target && target.GetObject()))
			return false;
		
		//! use hit position from ActionTarget otherwise player's position
		vector hitPosition = target.GetCursorHitPos();
		
		string surfaceType;
		float waterLevel = player.GetCurrentWaterLevel();
		g_Game.SurfaceGetType3D(hitPosition[0], hitPosition[1] + waterLevel, hitPosition[2], surfaceType);

		if (waterLevel > 0.0)
			return Surface.AllowedWaterSurface(hitPosition[1] + waterLevel, surfaceType, m_AllowedSurfaceList);

		float surfaceHeight = g_Game.SurfaceY(hitPosition[0], hitPosition[2]);		
		//! special handling for sea
		if (!surfaceType)
		{
			surfaceHeight = hitPosition[1];
		}

		float heightDiff = Math.AbsFloat(hitPosition[1] - surfaceHeight);
		if (surfaceType != "" && heightDiff > HEIGHT_DIFF_LIMIT_METERS)
			return false;
		
		float distSq = vector.DistanceSq(player.GetPosition(), hitPosition);
		if (distSq > m_MaximalActionDistanceSq)
			return false;

		return Surface.AllowedWaterSurface(hitPosition[1], surfaceType, m_AllowedSurfaceList);
	}
	
	override bool CanContinue(PlayerBase player, ActionTarget target)
	{
		return true;
	}
}

class CCTWaterSurfaceEx : CCTBase
{
	protected float m_MaximalActionDistanceSq;
	protected int m_AllowedLiquidSource;
	
	void CCTWaterSurfaceEx(float maximal_target_distance, int allowedLiquidSource)
	{
		m_MaximalActionDistanceSq 	= maximal_target_distance * maximal_target_distance;	
		m_AllowedLiquidSource = allowedLiquidSource;
	}
	
	override bool Can(PlayerBase player, ActionTarget target)
	{
		if (!target || (target && target.GetObject()))
			return false;
		
		vector hitPosition = target.GetCursorHitPos();
		string surfaceType;
		g_Game.SurfaceGetType3D(hitPosition[0], hitPosition[1], hitPosition[2], surfaceType);
		
		float distSq = vector.DistanceSq(player.GetPosition(), hitPosition);
		if (distSq > m_MaximalActionDistanceSq)
			return false;
		
		return Surface.CheckLiquidSource(hitPosition[1], surfaceType, m_AllowedLiquidSource);
	}
	
	override bool CanContinue(PlayerBase player, ActionTarget target)
	{
		return true;
	}
}