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394 lines
10 KiB
C++
394 lines
10 KiB
C++
// NeL - MMORPG Framework <http://dev.ryzom.com/projects/nel/>
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// Copyright (C) 2010 Winch Gate Property Limited
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//
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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 Affero General Public License as
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// published by the Free Software Foundation, either version 3 of the
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// License, or (at your option) any later version.
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//
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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 Affero General Public License for more details.
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//
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// You should have received a copy of the GNU Affero General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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#ifndef NL_PS_ZONE_H
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#define NL_PS_ZONE_H
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#include "nel/misc/types_nl.h"
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#include "nel/misc/stream.h"
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#include "nel/3d/ps_force.h"
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#include "nel/3d/ps_edit.h"
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#include "nel/3d/ps_attrib.h"
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#include "nel/3d/ps_plane_basis.h"
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namespace NL3D {
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/** This epsilon is in meter and give a thickness to surfaces for tests. It must be above above 0
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* for the system to work correctly
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*/
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const float PSCollideEpsilon = 10E-3f;
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/**
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* This class hold any entity that has an effect over located : a sink , a bouncing zone etc
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* This is a kind a specialized force, and it has an attached list of the targets
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* Not sharable accross systems.
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*
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* \author Nicolas Vizerie
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* \author Nevrax France
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* \date 2001
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*/
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class CPSZone : public CPSTargetLocatedBindable
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{
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public:
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/// behaviour when a collision occurs
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enum TCollisionBehaviour { bounce = 0, destroy = 1 };
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/// Constructor
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CPSZone();
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/**
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* Gives the type for this bindable.
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*/
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virtual uint32 getType(void) const { return PSZone; }
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/**
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* Get the priority of the bindable
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* The more high it is, the earlier it is dealt with
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*/
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virtual uint32 getPriority(void) const { return 3500; }
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/**
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* Process one pass for the zone
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* The default behaviour call performMotion or show depending on the pass being processed
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*/
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virtual void step(TPSProcessPass pass);
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/// Show the zone (edition mode).
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virtual void show() = 0;
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/// Add a new type of located for this zone to apply on. nlassert if already present
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virtual void attachTarget(CPSLocated *ptr);
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/// serialization, DERIVER must override this, and call the parent version
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virtual void serial(NLMISC::IStream &f) throw(NLMISC::EStream);
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/** Inherited from CPSTargetLocatedBindable. It's called when one of the targets has been detroyed or detached
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* The default behaviour, release collision infos from the located
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*/
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virtual void releaseTargetRsc(CPSLocated *target);
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/// set the bounce factor. It has meaning only if the behaviour is set to bounce...
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void setBounceFactor(float bounceFactor) { _BounceFactor = bounceFactor; }
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/// get the bounce factor. It has meaning only if the behaviour is set to bounce...
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float getBounceFactor(void) const { return _BounceFactor; }
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void setCollisionBehaviour(TCollisionBehaviour behaviour) { _CollisionBehaviour = behaviour; }
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TCollisionBehaviour getCollisionBehaviour(void) const { return _CollisionBehaviour; }
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/** Compute collisions for the given target. This will update the collisions infos.
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* The caller must provide pointer to arrays positions before and after time step.
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*/
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virtual void computeCollisions(CPSLocated &target, uint firstInstanceIndex, const NLMISC::CVector *posBefore, const NLMISC::CVector *posAfter) = 0;
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protected:
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// the bounce factor. 1.f mean no energy loss
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float _BounceFactor;
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TCollisionBehaviour _CollisionBehaviour;
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/**
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* This set speed of a located so that it looks like bouncing on a surface
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* \param locatedIndex the index
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* \param bouncePoint the position where the collision occured
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* \param surfNormal the normal of the surface at the collision point (this must be a unit vector)
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* \elasticity 1 = full bounce, 0 = no bounce (contact)
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* \ellapsedTime the time ellapsed
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*/
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// void bounce(uint32 locatedIndex, const NLMISC::CVector &bouncePoint, const NLMISC::CVector &surfNormal, float elasticity, float ellapsedTime);
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};
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/** A plane over which particles bounce
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* It has an interface to move each plane individually
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*/
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class CPSZonePlane : public CPSZone, public IPSMover
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{
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public:
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virtual void computeCollisions(CPSLocated &target, uint firstInstanceIndex, const NLMISC::CVector *posBefore, const NLMISC::CVector *posAfter);
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virtual void show();
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NLMISC_DECLARE_CLASS(CPSZonePlane);
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virtual void setMatrix(uint32 index, const NLMISC::CMatrix &m);
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virtual NLMISC::CMatrix getMatrix(uint32 index) const;
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virtual bool onlyStoreNormal(void) const { return true; }
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virtual NLMISC::CVector getNormal(uint32 index);
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virtual void setNormal(uint32 index, NLMISC::CVector n);
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virtual void serial(NLMISC::IStream &f) throw(NLMISC::EStream);
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protected:
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TPSAttribVector _Normal;
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NLMISC::CMatrix buildBasis(uint32 index) const;
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virtual void resize(uint32 size);
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virtual void newElement(const CPSEmitterInfo &info);
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virtual void deleteElement(uint32 index);
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};
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/// a radius and its suare in the same struct
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struct CRadiusPair
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{
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// the adius, and the square radius
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float R, R2;
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void serial(NLMISC::IStream &f) throw(NLMISC::EStream)
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{
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f.serial(R, R2);
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}
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};
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typedef CPSAttrib<CRadiusPair> TPSAttribRadiusPair;
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/** A sphere
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*/
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class CPSZoneSphere : public CPSZone, public IPSMover
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{
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public:
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virtual void computeCollisions(CPSLocated &target, uint firstInstanceIndex, const NLMISC::CVector *posBefore, const NLMISC::CVector *posAfter);
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virtual void show();
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NLMISC_DECLARE_CLASS(CPSZoneSphere);
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CPSZoneSphere()
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{
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if (CParticleSystem::getSerializeIdentifierFlag()) _Name = std::string("ZoneSphere");
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}
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virtual void serial(NLMISC::IStream &f) throw(NLMISC::EStream);
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// inherited from IPSMover
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virtual bool supportUniformScaling(void) const { return true; }
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virtual void setMatrix(uint32 index, const NLMISC::CMatrix &m);
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virtual NLMISC::CMatrix getMatrix(uint32 index) const;
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virtual void setScale(uint32 k, float scale);
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virtual NLMISC::CVector getScale(uint32 k) const;
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protected:
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TPSAttribRadiusPair _Radius;
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NLMISC::CMatrix buildBasis(uint32 index) const;
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virtual void resize(uint32 size);
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virtual void newElement(const CPSEmitterInfo &info);
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virtual void deleteElement(uint32 index);
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};
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/// a disc
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class CPSZoneDisc : public CPSZone, public IPSMover
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{
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public:
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virtual void computeCollisions(CPSLocated &target, uint firstInstanceIndex, const NLMISC::CVector *posBefore, const NLMISC::CVector *posAfter);
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virtual void show();
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CPSZoneDisc()
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{
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if (CParticleSystem::getSerializeIdentifierFlag()) _Name = std::string("ZoneDisc");
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}
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NLMISC_DECLARE_CLASS(CPSZoneDisc);
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// inherited from IPSMover
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virtual bool supportUniformScaling(void) const { return true; }
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virtual void setMatrix(uint32 index, const NLMISC::CMatrix &m);
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virtual NLMISC::CMatrix getMatrix(uint32 index) const;
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virtual void setScale(uint32 k, float scale);
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virtual NLMISC::CVector getScale(uint32 k) const;
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virtual bool onlyStoreNormal(void) const { return true; }
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virtual NLMISC::CVector getNormal(uint32 index);
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virtual void setNormal(uint32 index, NLMISC::CVector n);
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virtual void serial(NLMISC::IStream &f) throw(NLMISC::EStream);
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protected:
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TPSAttribVector _Normal;
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TPSAttribRadiusPair _Radius;
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NLMISC::CMatrix buildBasis(uint32 index) const;
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virtual void resize(uint32 size);
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virtual void newElement(const CPSEmitterInfo &info);
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virtual void deleteElement(uint32 index);
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};
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/// a caped cylinder
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class CPSZoneCylinder : public CPSZone, public IPSMover
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{
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public:
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virtual void computeCollisions(CPSLocated &target, uint firstInstanceIndex, const NLMISC::CVector *posBefore, const NLMISC::CVector *posAfter);
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virtual void show();
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CPSZoneCylinder()
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{
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if (CParticleSystem::getSerializeIdentifierFlag()) _Name = std::string("ZoneCylinder");
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}
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NLMISC_DECLARE_CLASS(CPSZoneCylinder);
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// inherited from IPSMover
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virtual bool supportUniformScaling(void) const { return true; }
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virtual bool supportNonUniformScaling(void) const { return true; }
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virtual void setMatrix(uint32 index, const NLMISC::CMatrix &m);
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virtual NLMISC::CMatrix getMatrix(uint32 index) const;
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virtual void setScale(uint32 k, float scale);
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virtual void setScale(uint32 k, const NLMISC::CVector &s);
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virtual NLMISC::CVector getScale(uint32 k) const;
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// serialization
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virtual void serial(NLMISC::IStream &f) throw(NLMISC::EStream);
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protected:
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// the I and J vector of the cylinder
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CPSAttrib<CPlaneBasis> _Basis;
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// dimension of cylinder in each direction, encoded in a vector
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TPSAttribVector _Dim;
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NLMISC::CMatrix buildBasis(uint32 index) const;
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virtual void resize(uint32 size);
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virtual void newElement(const CPSEmitterInfo &info);
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virtual void deleteElement(uint32 index);
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};
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/**
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* The same as a plane, but with a rectangle. We don't encode the plane by its normal, however...
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*/
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class CPSZoneRectangle : public CPSZone, public IPSMover
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{
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public:
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virtual void computeCollisions(CPSLocated &target, uint firstInstanceIndex, const NLMISC::CVector *posBefore, const NLMISC::CVector *posAfter);
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virtual void show();
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CPSZoneRectangle()
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{
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if (CParticleSystem::getSerializeIdentifierFlag()) _Name = std::string("CPSZoneRectangle");
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}
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NLMISC_DECLARE_CLASS(CPSZoneRectangle);
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// serialization
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virtual void serial(NLMISC::IStream &f) throw(NLMISC::EStream);
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// inherited from IPSMover
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virtual bool supportUniformScaling(void) const { return true; }
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virtual bool supportNonUniformScaling(void) const { return true; }
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virtual void setMatrix(uint32 index, const NLMISC::CMatrix &m);
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virtual NLMISC::CMatrix getMatrix(uint32 index) const;
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virtual void setScale(uint32 index, float scale);
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virtual void setScale(uint32 index, const NLMISC::CVector &s);
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virtual NLMISC::CVector getScale(uint32 index) const;
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protected:
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CPSAttrib<CPlaneBasis> _Basis;
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// width
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TPSAttribFloat _Width;
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// Height
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TPSAttribFloat _Height;
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NLMISC::CMatrix buildBasis(uint32 index) const;
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virtual void resize(uint32 size);
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virtual void newElement(const CPSEmitterInfo &info);
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virtual void deleteElement(uint32 index);
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};
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} // NL3D
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#endif // NL_PS_ZONE_H
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/* End of ps_zone.h */
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