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107 lines
2.4 KiB
107 lines
2.4 KiB
/*==LICENSE==* |
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CyanWorlds.com Engine - MMOG client, server and tools |
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Copyright (C) 2011 Cyan Worlds, Inc. |
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This program is free software: you can redistribute it and/or modify |
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it under the terms of the GNU General Public License as published by |
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the Free Software Foundation, either version 3 of the License, or |
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(at your option) any later version. |
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This program is distributed in the hope that it will be useful, |
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but WITHOUT ANY WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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GNU General Public License for more details. |
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You should have received a copy of the GNU General Public License |
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along with this program. If not, see <http://www.gnu.org/licenses/>. |
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You can contact Cyan Worlds, Inc. by email legal@cyan.com |
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or by snail mail at: |
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Cyan Worlds, Inc. |
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14617 N Newport Hwy |
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Mead, WA 99021 |
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*==LICENSE==*/ |
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#include "hsTypes.h" |
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#include "plModulator.h" |
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#include "hsResMgr.h" |
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#include "hsStream.h" |
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#include "hsGeometry3.h" |
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#include "hsBounds.h" |
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#include "plController.h" |
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#include "plIntersect/plVolumeIsect.h" |
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plModulator::plModulator() |
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: fVolume(nil), |
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fSoftDist(0) |
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{ |
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} |
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plModulator::~plModulator() |
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{ |
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delete fVolume; |
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} |
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void plModulator::SetVolume(plVolumeIsect* vol) |
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{ |
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delete fVolume; |
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fVolume = vol; |
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} |
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void plModulator::SetTransform(const hsMatrix44& l2w, const hsMatrix44& w2l) |
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{ |
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hsAssert(fVolume, "Modulator with no Volume is pretty useless"); |
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fVolume->SetTransform(l2w, w2l); |
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} |
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// Volume - Want to base this on the closest point on the bounds, instead of just the center. |
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hsScalar plModulator::Modulation(const hsBounds3Ext& bnd) const |
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{ |
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return Modulation(bnd.GetCenter()); |
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} |
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hsScalar plModulator::Modulation(const hsPoint3& pos) const |
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{ |
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hsAssert(fVolume, "Modulator with no Volume is pretty useless"); |
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hsScalar dist = fVolume->Test(pos); |
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hsScalar retVal; |
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if( dist > 0 ) |
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{ |
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if( dist < fSoftDist ) |
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{ |
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dist /= fSoftDist; |
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retVal = 1.f - dist; |
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} |
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else |
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{ |
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retVal = 0; |
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} |
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} |
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else |
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{ |
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retVal = 1.f; |
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} |
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return retVal; |
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} |
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void plModulator::Read(hsStream* s, hsResMgr* mgr) |
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{ |
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fVolume = plVolumeIsect::ConvertNoRef(mgr->ReadCreatable(s)); |
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fSoftDist = s->ReadSwapScalar(); |
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} |
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void plModulator::Write(hsStream* s, hsResMgr* mgr) |
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{ |
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mgr->WriteCreatable(s, fVolume); |
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s->WriteSwapScalar(fSoftDist); |
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} |
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