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103 lines
3.4 KiB
103 lines
3.4 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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Additional permissions under GNU GPL version 3 section 7 |
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If you modify this Program, or any covered work, by linking or |
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combining it with any of RAD Game Tools Bink SDK, Autodesk 3ds Max SDK, |
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NVIDIA PhysX SDK, Microsoft DirectX SDK, OpenSSL library, Independent |
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JPEG Group JPEG library, Microsoft Windows Media SDK, or Apple QuickTime SDK |
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(or a modified version of those libraries), |
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containing parts covered by the terms of the Bink SDK EULA, 3ds Max EULA, |
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PhysX SDK EULA, DirectX SDK EULA, OpenSSL and SSLeay licenses, IJG |
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JPEG Library README, Windows Media SDK EULA, or QuickTime SDK EULA, the |
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licensors of this Program grant you additional |
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permission to convey the resulting work. Corresponding Source for a |
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non-source form of such a combination shall include the source code for |
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the parts of OpenSSL and IJG JPEG Library used as well as that of the covered |
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work. |
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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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#ifndef plConvexVolume_inc |
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#define plConvexVolume_inc |
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#include "../pnSceneObject/plObjInterface.h" |
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struct hsPlane3; |
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struct hsPoint3; |
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struct hsMatrix44; |
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class hsResMgr; |
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// A convex volume defined by several boundary planes |
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// For now it assumes the user won't add planes that make it concave |
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class plConvexVolume : public plCreatable |
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{ |
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public: |
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plConvexVolume(); |
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~plConvexVolume(); |
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CLASSNAME_REGISTER( plConvexVolume ); |
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GETINTERFACE_ANY( plConvexVolume, plCreatable ); |
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void Update(const hsMatrix44 &l2w); |
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hsBool AddPlane(const hsPlane3 &plane); |
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void SetNumPlanesAndClear(const UInt32 num); |
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void SetPlane(const hsPlane3 &plane, const UInt32 index); |
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// If you only care about the test, call this. Otherwise call ResolvePoint. |
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hsBool IsInside(const hsPoint3 &pos) const; |
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// returns true if the point was inside the volume, and thus moved outward. |
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hsBool ResolvePoint(hsPoint3 &pos) const; |
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// returns true if the point was inside and pos and velocity updated to bounce off offending plane. |
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// input bounce==1.f for perfect bounce, bounce==0 to slide. |
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hsBool BouncePoint(hsPoint3 &pos, hsVector3 &velocity, hsScalar bounce, hsScalar friction) const; |
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inline hsBool TestPlane(const hsPoint3 &pos, const hsPlane3 &plane) const; // Is the point inside the plane? |
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virtual void Read(hsStream* s, hsResMgr *mgr); |
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virtual void Write(hsStream* s, hsResMgr *mgr); |
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//virtual hsBool MsgReceive(plMessage* msg); |
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protected: |
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void IClear(); |
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hsPlane3 *fLocalPlanes; |
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hsPlane3 *fWorldPlanes; |
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UInt32 fNumPlanes; |
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}; |
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inline hsBool plConvexVolume::TestPlane(const hsPoint3 &pos, const hsPlane3 &plane) const |
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{ |
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hsScalar dis = plane.fN.InnerProduct(pos); |
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dis += plane.fD; |
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if( dis >= 0.f ) |
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return false; |
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return true; |
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} |
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#endif
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