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143 lines
5.8 KiB
143 lines
5.8 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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#ifndef plParticleEmitter_inc |
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#define plParticleEmitter_inc |
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#include "hsGeometry3.h" |
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#include "hsBounds.h" |
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#include "pnNetCommon/plSynchedValue.h" |
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#include "hsColorRGBA.h" |
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class hsBounds3Ext; |
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class plParticleSystem; |
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class plParticleCore; |
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class plParticleExt; |
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class plParticleGenerator; |
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class plSimpleParticleGenerator; |
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class hsResMgr; |
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#include "plEffectTargetInfo.h" |
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// This just holds a bunch of parameters for an emission location. A particle system can have several of these |
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class plParticleEmitter : public plCreatable |
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{ |
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friend class plParticleSystem; |
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friend class plSimpleParticleGenerator; |
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public: |
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plParticleEmitter(); |
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~plParticleEmitter(); |
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void Init(plParticleSystem *system, UInt32 maxParticles, UInt32 spanIndex, UInt32 miscFlags, |
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plParticleGenerator *gen = nil); |
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void Clone(plParticleEmitter* src, UInt32 spanIndex); |
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plParticleCore *GetParticleArray() const { return fParticleCores; } |
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UInt32 GetParticleCount() const { return fNumValidParticles; } |
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UInt32 GetNumTiles() const; |
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const hsBounds3Ext &GetBoundingBox() const { return fBoundBox; } |
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UInt32 GetSpanIndex() const { return fSpanIndex; } |
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const hsMatrix44 &GetLocalToWorld() const; |
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void AddParticle(hsPoint3 &pos, hsVector3 &velocity, UInt32 tileIndex, |
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hsScalar hSize, hsScalar vSize, hsScalar scale, hsScalar invMass, hsScalar life, |
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hsPoint3 &orientation, UInt32 miscFlags, hsScalar radsPerSec=0); |
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void WipeExistingParticles(); |
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void KillParticles(hsScalar num, hsScalar timeToDie, UInt8 flags); |
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UInt16 StealParticlesFrom(plParticleEmitter *victim, UInt16 num); // returns the number actually stolen |
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void TranslateAllParticles(hsPoint3 &amount); // Used to recenter the system when linking between ages. |
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void UpdateGenerator(UInt32 paramID, hsScalar paramValue); |
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static UInt32 CreateHexColor(const hsColorRGBA &color); |
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static UInt32 CreateHexColor(const hsScalar r, const hsScalar g, const hsScalar b, const hsScalar a); |
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void OverrideLocalToWorld(const hsMatrix44& l2w); |
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void UnOverrideLocalToWorld() { fMiscFlags &= ~kOverrideLocalToWorld; } |
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hsBool LocalToWorldOverridden() const { return 0 != (fMiscFlags & kOverrideLocalToWorld); } |
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void SetTimeToLive(hsScalar dt) { fTimeToLive = dt; } |
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hsScalar GetTimeToLive() const { return fTimeToLive; } // 0 time to live is never turn off. |
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CLASSNAME_REGISTER( plParticleEmitter ); |
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GETINTERFACE_ANY( plParticleEmitter, plCreatable); |
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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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enum // Miscellaneous flags |
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{ |
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kMatIsEmissive = 0x00000001, |
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kNormalUp = 0x00000010, |
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kNormalVelUpVel = 0x00000020, |
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kNormalFromCenter = 0x00000040, |
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kNormalDynamicMask = kNormalVelUpVel | kNormalFromCenter, // precalc methods that need updating each frame |
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kNormalPrecalcMask = kNormalDynamicMask | kNormalUp, // All types where emitter precalculates the normal |
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kNormalViewFacing = 0x00000100, |
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kNormalNearestLight = 0x00000200, |
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kNeedsUpdate = 0x01000000, |
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kBorrowedGenerator = 0x02000000, |
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kOverrideLocalToWorld = 0x04000000, |
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kOnReserve = 0x08000000, |
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kOrientationUp = 0x10000000, |
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kOrientationVelocityBased = 0x20000000, |
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kOrientationVelocityStretch = 0x40000000, |
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kOrientationVelocityFlow = 0x80000000, |
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kOrientationVelocityMask = kOrientationVelocityBased | kOrientationVelocityStretch | kOrientationVelocityFlow, // Velocity dependent |
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kOrientationMask = kOrientationUp | kOrientationVelocityMask, |
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}; |
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UInt32 fMiscFlags; |
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protected: |
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plParticleSystem *fSystem; // The particle system this belongs to. |
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plParticleCore *fParticleCores; // The particle pool, created on init, initialized as needed, and recycled. |
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plParticleExt *fParticleExts; // Same mapping as the Core pool. Contains extra info the render pipeline |
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// doesn't need. |
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plParticleGenerator *fGenerator; // Optional auto generator (have this be nil if you don't want auto-generation) |
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UInt32 fSpanIndex; // Index of the span that this emitter uses. |
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UInt32 fNumValidParticles; |
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UInt32 fMaxParticles; |
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hsBounds3Ext fBoundBox; |
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plEffectTargetInfo fTargetInfo; // A collection of pointers and strides that plParticleEffects will manipulate. |
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hsColorRGBA fColor; |
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hsMatrix44 fLocalToWorld; |
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hsScalar fTimeToLive; |
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void IClear(); |
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void ISetupParticleMem(); |
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void ISetSystem(plParticleSystem *sys) { fSystem = sys; } |
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hsBool IUpdate(hsScalar delta); |
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void IUpdateParticles(hsScalar delta); |
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void IUpdateBoundsAndNormals(hsScalar delta); |
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void IRemoveParticle(UInt32 index); |
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}; |
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#endif
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