CWE-ou-minkata/MOULOpenSourceClientPlugin/Plasma20/Sources/Plasma/PubUtilLib/plDrawable/plAccessSpan.h

/*==LICENSE==*

CyanWorlds.com Engine - MMOG client, server and tools
Copyright (C) 2011  Cyan Worlds, Inc.

This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program.  If not, see <http://www.gnu.org/licenses/>.

You can contact Cyan Worlds, Inc. by email legal@cyan.com
 or by snail mail at:
      Cyan Worlds, Inc.
      14617 N Newport Hwy
      Mead, WA   99021

*==LICENSE==*/

#ifndef plAccessSpan_inc
#define plAccessSpan_inc

#include "plAccessVtxSpan.h"
#include "plAccessTriSpan.h"
#include "plAccessPartySpan.h"

#include "plSpanTypes.h"
#include "plGeometrySpan.h"

class plGeometrySpan;
class plSpan;

class hsGMaterial;

class plAccessSpan
{
public:
	enum AccessType
	{
		kTri		= 0,
		kParty,
		kVtx,
		kUndefined
	};

private:
	union
	{
		plAccessTriSpan		fAccessTri;
		plAccessPartySpan	fAccessParty;
		plAccessVtxSpan		fAccessVtx;
	} fAccess;
	AccessType		fType;

	const hsMatrix44*	fLocalToWorld;
	const hsMatrix44*	fWorldToLocal;
	hsBounds3Ext*		fLocalBounds;
	hsBounds3Ext*		fWorldBounds;

	hsScalar*			fWaterHeight;

	hsGMaterial*		fMaterial;

	void		SetSource(plSpan* s); 
	void		SetSource(plGeometrySpan* s); 
	void		SetMaterial(hsGMaterial* m) { fMaterial = m; }

	friend class plAccessGeometry;
public:

	plAccessSpan() : fType(kUndefined), fLocalToWorld(nil), fWorldToLocal(nil), fLocalBounds(nil), fWorldBounds(nil), fWaterHeight(nil), fMaterial(nil) {}
	plAccessSpan(AccessType t) : fType(t), fLocalToWorld(nil), fWorldToLocal(nil), fLocalBounds(nil), fWorldBounds(nil), fWaterHeight(nil), fMaterial(nil) {}

	void SetType(AccessType t) { fType = t; }
	AccessType GetType() const { return fType; }

	hsBool HasAccessTri() const { return fType == kTri; }
	hsBool HasAccessParty() const { return fType == kParty; }
	hsBool HasAccessVtx() const { return fType != kUndefined; }

	plAccessTriSpan&	AccessTri() { hsAssert(fType == kTri, "Cross type access"); return fAccess.fAccessTri; }
	plAccessPartySpan&	AccessParty() { hsAssert(fType == kParty, "Cross type access"); return fAccess.fAccessParty; }

	inline plAccessVtxSpan&	AccessVtx();


	const hsMatrix44&	GetLocalToWorld() const { return *fLocalToWorld; }
	const hsMatrix44&	GetWorldToLocal() const { return *fWorldToLocal; }

	hsGMaterial*		GetMaterial() const { return fMaterial; }

	const hsBounds3Ext&	GetLocalBounds() const { return *fLocalBounds; }
	const hsBounds3Ext&	GetWorldBounds() const { return *fWorldBounds; }

	void SetLocalBounds(const hsBounds3Ext& bnd) { *fWorldBounds = *fLocalBounds = bnd; fWorldBounds->Transform(fLocalToWorld); }
	void SetWorldBounds(const hsBounds3Ext& wBnd) { *fWorldBounds = wBnd; }

	hsBool HasWaterHeight() const { return nil != fWaterHeight; }
	hsScalar GetWaterHeight() const { hsAssert(HasWaterHeight(), "Check before asking"); return *fWaterHeight; }
};

inline plAccessVtxSpan& plAccessSpan::AccessVtx()
{
	switch( fType )
	{
	case kTri:
		return fAccess.fAccessTri;
	case kParty:
		return fAccess.fAccessParty;
	case kVtx:
		return fAccess.fAccessVtx;

	case kUndefined:
	default:
		break;
	}
	hsAssert(false, "Undefined type");
	return fAccess.fAccessVtx;
}



#endif // plAccessSpan_inc