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/*==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 plDistOpacityMod_inc
#define plDistOpacityMod_inc
#include "hsGeometry3.h"
#include "../pnModifier/plSingleModifier.h"
#include "hsTemplates.h"
class plPipeline;
class plRenderMsg;
class plFadeOpacityLay;
class plDistOpacityMod : public plSingleModifier
{
public:
enum {
kTrackAvatar,
kTrackCamera
};
protected:
enum {
kRefFadeLay
};
// Volatile flag, whether we're setup yet or not.
UInt8 fSetup;
enum {
kNearTrans,
kNearOpaq,
kFarOpaq,
kFarTrans,
kNumDists
};
hsScalar fDists[kNumDists];
hsPoint3 fRefPos;
hsTArray<plFadeOpacityLay*> fFadeLays;
// We only act in response to messages.
virtual hsBool IEval(double secs, hsScalar del, UInt32 dirty) { return false; }
hsScalar ICalcOpacity(const hsPoint3& targPos, const hsPoint3& refPos) const;
void ISetOpacity();
void ISetup();
void ICheckDists()
{
hsAssert(fDists[kNearTrans] <= fDists[kNearOpaq], "Bad transition values");
hsAssert(fDists[kNearOpaq] <= fDists[kFarOpaq], "Bad transition values");
hsAssert(fDists[kFarOpaq] <= fDists[kFarTrans], "Bad transition values");
}
public:
plDistOpacityMod();
virtual ~plDistOpacityMod();
CLASSNAME_REGISTER( plDistOpacityMod );
GETINTERFACE_ANY( plDistOpacityMod, plSingleModifier );
virtual void SetKey(plKey k);
virtual hsBool MsgReceive(plMessage* msg);
virtual void Read(hsStream* s, hsResMgr* mgr);
virtual void Write(hsStream* s, hsResMgr* mgr);
virtual void SetTarget(plSceneObject* so);
// Rules are:
// NearTrans <= NearOpaq <= FarOpaque <= FarTrans
void SetFarDist(hsScalar opaque, hsScalar transparent);
void SetNearDist(hsScalar transparent, hsScalar opaque);
hsScalar GetFarTransparent() const { return fDists[kFarTrans]; }
hsScalar GetNearTransparent() const { return fDists[kNearTrans]; }
hsScalar GetFarOpaque() const { return fDists[kFarOpaq]; }
hsScalar GetNearOpaque() const { return fDists[kNearOpaq]; }
};
#endif // plDistOpacityMod_inc