//===========================================================================//
// File:	dmgtable.hpp                                                        //
// Project: BattleTech                                                       //
// Contents: The cylinder hit-location table (unaimed damage -> zone)        //
//---------------------------------------------------------------------------//
// Copyright (C) 1995, Virtual World Entertainment, Inc.                     //
// All Rights reserved worldwide                                             //
// This unpublished sourcecode is PROPRIETARY and CONFIDENTIAL               //
//===========================================================================//
//
// STAGED header -- no dmgtable.hpp survives; the interface is reconstructed
// from the binary (BT411, byte-verified vs the real type-29 .RES streams):
// a passive nested height x angle grid of three container classes,
//
//   DamageLookupTable  (binary ctor @0049ea48, vtable @0050bd84, 0x2c)
//     -> PieSlice ROWS by height  (@0049e740, @0050bd90, 0x30)
//       -> DamageZonePercentTable CELLS by angle (@0049deb0, @0050bd9c, 0x2c)
//         -> the cumulative hit-distribution (roll -> zone index).
//
// Class names follow the BT411 reconstruction (no 1995 names survive).
// The binary keys rows/cells into refcounted keyed lists; direct-indexed
// arrays are equivalent (the float key (i+1)*2pi/count === cells[i]).
//

#if !defined(DMGTABLE_HPP)
#	define DMGTABLE_HPP

//#####################    Forward Class Declarations  #######################
	class Mech;

//###########################################################################
//#####################   DamageZonePercentTable   ##########################
//###########################################################################

	//
	// One angular CELL: the cumulative hit-distribution.  Entries ascend;
	// SelectZone (binary @0049de14) rolls uniform [0,1) and returns the
	// first entry whose threshold exceeds the roll -- the classic
	// BattleTech dice hit-scatter.
	//
	class DamageZonePercentTable
	{
	public:
		DamageZonePercentTable(MemoryStream *stream);
		~DamageZonePercentTable();

		int
			SelectZone();

		int		entryCount;
		Scalar	*thresholds;	// cumulative, ascending
		int		*zoneIndices;	// -> Entity::damageZones[]
	};

//###########################################################################
//############################   PieSlice   #################################
//###########################################################################

	//
	// One height ROW: the ring of angular cells.  rotateWithTorso rows
	// (upper body) add the live torso twist to the impact angle before the
	// cell pick (binary @0049e678).
	//
	class PieSlice
	{
	public:
		PieSlice(Mech *mech, MemoryStream *stream);
		~PieSlice();

		DamageZonePercentTable*
			SelectSlice(Scalar angle);

		Mech	*owner;
		int		rotateWithTorso;
		int		cellCount;
		DamageZonePercentTable
				**cells;
	};

//###########################################################################
//########################   DamageLookupTable   ############################
//###########################################################################

	//
	// The table: rows stacked by height over the mech's cylinder.
	// ResolveHit (binary @0049eb54 + glue @0049ed0c) maps a WORLD impact
	// point -> mech-local -> (height row, impact angle) -> cell -> the
	// distribution roll -> a hull zone index.
	//
	class DamageLookupTable
	{
	public:
		DamageLookupTable(Mech *mech, MemoryStream *stream);
		~DamageLookupTable();

		int
			ResolveHit(const Point3D &world_impact);

		Mech	*owner;
		int		rowCount;
		PieSlice
				**rows;
	};

#endif