/* Copyright (c) Microsoft Corporation.
   Licensed under the MIT License. */

/*************************************************************************

	body.h: Body class

	Primary Author: ******
	Review Status: REVIEWED - any changes to this file must be reviewed!

	BASE ---> BODY

*************************************************************************/
#ifndef BODY_H
#define BODY_H


/****************************************
	The BODY class
****************************************/
typedef class BODY *PBODY;
#define BODY_PAR BASE
#define kclsBODY 'BODY'
class BODY : public BODY_PAR
	{
	RTCLASS_DEC
	ASSERT
	MARKMEM

protected:
	static BMTL *_pbmtlHilite; // hilight material
	static BODY *_pbodyClosestClicked;
	static long _dzpClosestClicked;
	static BACT *_pbactClosestClicked;
	BACT *_prgbact;		// array of BACTs
	PGL _pglibset;		// body part set IDs
	long _cbset;		// count of body part sets
	PCMTL *_prgpcmtl;	// array of PCMTLs -- one per body part set
	long _cbactPart;	// count of model body parts in body
	long _cactHidden;	// for Show() / Hide()
	PBWLD _pbwld;		// world that body lives in
	RC _rcBounds;		// bounds of body after last render
	RC _rcBoundsLastVis;// bounds of body last time it was visible
	bool _fFound;		// is the actor found under the mouse?
	long _ibset;		// which body part got hit.

protected:
	BODY(void) {}		// can't instantiate directly; must use PbodyNew
	void _DestroyShape(void);
	bool _FInit(PGL pglibactPar, PGL pglibset);
	bool _FInitShape(PGL pglibactPar, PGL pglibset);
	PBACT _PbactRoot(void)   // ptr to root BACT
		{ return _prgbact; }
	PBACT _PbactHilite(void)	// ptr to hilite BACT
		{ return _prgbact + 1; } // skip root BACT
	PBACT _PbactPart(long ipart) // ptr to ipart'th body part
		{ return _prgbact + 1 + 1 + ipart; } // skip root and hilite BACTs
	long _Cbact(void)  // count in _prgbact
		{ return 1 + 1 + _cbactPart; } // root, hilite, and body part BACTs
	long _Ibset(long ipart) // body part set that this part belongs to
		{ return *(short *)_pglibset->QvGet(ipart);}
	void _RemoveMaterial(long ibset);

	// Callbacks from BRender:
	static int BR_CALLBACK _FFilterSearch(BACT *pbact, PBMDL pbmdl, 
		PBMTL pbmtl, BVEC3 *pbvec3RayPos, BVEC3 *pbvec3RayDir, BRS dzpNear, 
		BRS dzpFar, void *pvArg);
	static void _BactRendered(PBACT pbact, RC *prc);
	static void _PrepareToRender(PBACT pbact);
	static void _GetRc(PBACT pbact, RC *prc);

public:
	static PBODY PbodyNew(PGL pglibactPar, PGL pglibset);
	static PBODY PbodyFromBact(BACT *pbact, long *pibset = pvNil);
	static PBODY PbodyClicked(long xp, long yp, PBWLD pbwld, long *pibset = pvNil);
	~BODY(void);
	PBODY PbodyDup(void);
	void Restore(PBODY pbodyDup);
	static int BR_CALLBACK _FFilter(BACT *pbact, PBMDL pbmdl, PBMTL pbmtl,
		BVEC3 *pbvec3RayPos, BVEC3 *pbvec3RayDir, BRS dzpNear, BRS dzpFar,
		void *pv);

	bool FChangeShape(PGL pglibactPar, PGL pglibset);
	void SetBwld(PBWLD pbwld) { _pbwld = pbwld; }

	void Show(void);
	void Hide(void);
	void Hilite(void);
	void Unhilite(void);

	static void SetHiliteColor(long iclr);

	void LocateOrient(BRS xr, BRS yr, BRS zr, BMAT34 *pbmat34);
	void SetPartModel(long ibact, MODL *pmodl);
	void SetPartMatrix(long ibact, BMAT34 *pbmat34);
	void SetPartSetMtrl(long ibset, MTRL *pmtrl);
	void SetPartSetCmtl(CMTL *pcmtl);
	void GetPartSetMaterial(long ibset, bool *pfMtrl, MTRL **ppmtrl,
		CMTL **ppcmtl);
	long Cbset() { return _cbset; }

	void GetBcbBounds(BCB *pbcb, bool fWorld = fFalse);
	void GetRcBounds(RC *prc);
	void GetCenter(long *pxp, long *pyp);
	void GetPosition(BRS *pxr, BRS *pyr, BRS *pzr);
	bool FPtInBody(long xp, long yp, long *pibset);
	bool FIsInView(void);
	};


/****************************************
	The COST class, which is used to
	save and restore a BODY's entire
	costume for unwinding purposes
****************************************/
typedef class COST *PCOST;
#define COST_PAR BASE
#define kclsCOST 'COST'
class COST : public COST_PAR
	{
	RTCLASS_DEC
	ASSERT
	MARKMEM

private:
	long _cbset;		// count of body part sets in _prgpo
	BASE **_prgpo;		// array of MTRLs and CMTLs

private:
	void _Clear(void);	// release _prgpo and material references

public:
	COST(void);
	~COST(void);

	bool FGet(PBODY pbody);	// read and store BODY's costume

	// replace BODY's costume with this one
	void Set(PBODY pbody, bool fAllowDifferentShape = fFalse);
	};


#endif // !BODY_H