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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/>.
Additional permissions under GNU GPL version 3 section 7
If you modify this Program, or any covered work, by linking or
combining it with any of RAD Game Tools Bink SDK, Autodesk 3ds Max SDK,
NVIDIA PhysX SDK, Microsoft DirectX SDK, OpenSSL library, Independent
JPEG Group JPEG library, Microsoft Windows Media SDK, or Apple QuickTime SDK
(or a modified version of those libraries),
containing parts covered by the terms of the Bink SDK EULA, 3ds Max EULA,
PhysX SDK EULA, DirectX SDK EULA, OpenSSL and SSLeay licenses, IJG
JPEG Library README, Windows Media SDK EULA, or QuickTime SDK EULA, the
licensors of this Program grant you additional
permission to convey the resulting work. Corresponding Source for a
non-source form of such a combination shall include the source code for
the parts of OpenSSL and IJG JPEG Library used as well as that of the covered
work.
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 plParticleEffect_inc
#define plParticleEffect_inc
#include "pnKeyedObject/hsKeyedObject.h"
#include "hsMatrix44.h"
class plEffectTargetInfo;
class plConvexVolume;
class hsResMgr;
class plSceneObject;
class plParticleEffect : public hsKeyedObject
{
public:
CLASSNAME_REGISTER( plParticleEffect );
GETINTERFACE_ANY( plParticleEffect, hsKeyedObject );
// Order is:
// PrepareEffect is called with a given target (including valid
// ParticleContext).
// ApplyEffect is called some once for each particle (maybe zero times).
// It can return true to kill a particle.
// Target and Context passed in with Prepare will be
// guaranteed to remain valid until,
// EndEffect marks no more particles will be processed with the above
// context (invalidating anything cached).
// Defaults for Prepare and End are no-ops.
virtual void PrepareEffect(const plEffectTargetInfo& target) {}
virtual hsBool ApplyEffect(const plEffectTargetInfo& target, int32_t i) = 0;
virtual void EndEffect(const plEffectTargetInfo& target) {}
};
class plParticleCollisionEffect : public plParticleEffect
{
public:
plParticleCollisionEffect();
~plParticleCollisionEffect();
CLASSNAME_REGISTER( plParticleCollisionEffect );
GETINTERFACE_ANY( plParticleCollisionEffect, plParticleEffect );
virtual void PrepareEffect(const plEffectTargetInfo& target);
virtual void Read(hsStream *s, hsResMgr *mgr);
virtual void Write(hsStream *s, hsResMgr *mgr);
virtual hsBool MsgReceive(plMessage *msg);
protected:
plSceneObject *fSceneObj;
plConvexVolume *fBounds;
};
// Default particle blocker. Doesn't affect particle's velocity,
// so it'll keep "beat"ing on the deflector until the velocity
// dotted with the deflector normal slides it off an edge.
class plParticleCollisionEffectBeat : public plParticleCollisionEffect
{
public:
plParticleCollisionEffectBeat();
CLASSNAME_REGISTER( plParticleCollisionEffectBeat );
GETINTERFACE_ANY( plParticleCollisionEffectBeat, plParticleCollisionEffect );
virtual hsBool ApplyEffect(const plEffectTargetInfo& target, int32_t i);
};
// This particle blocker just kills any particles that hit it.
class plParticleCollisionEffectDie : public plParticleCollisionEffect
{
public:
plParticleCollisionEffectDie();
CLASSNAME_REGISTER( plParticleCollisionEffectDie );
GETINTERFACE_ANY( plParticleCollisionEffectDie, plParticleCollisionEffect );
virtual hsBool ApplyEffect(const plEffectTargetInfo& target, int32_t i);
};
class plParticleCollisionEffectBounce : public plParticleCollisionEffect
{
protected:
float fBounce;
float fFriction;
public:
plParticleCollisionEffectBounce();
CLASSNAME_REGISTER( plParticleCollisionEffectBounce );
GETINTERFACE_ANY( plParticleCollisionEffectBounce, plParticleCollisionEffect );
virtual hsBool ApplyEffect(const plEffectTargetInfo& target, int32_t i);
virtual void Read(hsStream *s, hsResMgr *mgr);
virtual void Write(hsStream *s, hsResMgr *mgr);
void SetBounce(float b) { fBounce = b; }
float GetBounce() const { return fBounce; }
void SetFriction(float f) { fFriction = f; }
float GetFriction() const { return fFriction; }
};
class plParticleFadeVolumeEffect : public plParticleEffect
{
protected:
// Some cached properties. These will be the same for all
// particles between matching PrepareEffect and EndEffect calls.
hsPoint3 fMax;
hsPoint3 fMin;
hsPoint3 fNorm;
public:
plParticleFadeVolumeEffect();
~plParticleFadeVolumeEffect();
CLASSNAME_REGISTER( plParticleFadeVolumeEffect );
GETINTERFACE_ANY( plParticleFadeVolumeEffect, plParticleEffect );
virtual void PrepareEffect(const plEffectTargetInfo& target);
virtual hsBool ApplyEffect(const plEffectTargetInfo& target, int32_t i);
virtual void Read(hsStream *s, hsResMgr *mgr);
virtual void Write(hsStream *s, hsResMgr *mgr);
//virtual hsBool MsgReceive(plMessage *msg);
float fLength;
hsBool fIgnoreZ;
};
class plParticleWindEffect : public plParticleEffect
{
protected:
// The properties that define the wind. These might/should be animatable.
float fStrength;
float fConstancy;
float fSwirl;
hsBool fHorizontal;
hsVector3 fRefDir;
// Some cached properties. These will be the same for all
// particles between matching PrepareEffect and EndEffect calls.
// These define the current state of the wind.
hsVector3 fWindVec;
hsVector3 fRandDir;
hsVector3 fDir;
double fLastDirSecs;
public:
plParticleWindEffect();
~plParticleWindEffect();
CLASSNAME_REGISTER( plParticleWindEffect );
GETINTERFACE_ANY( plParticleWindEffect, plParticleEffect );
virtual void PrepareEffect(const plEffectTargetInfo& target);
virtual hsBool ApplyEffect(const plEffectTargetInfo& target, int32_t i) = 0;
virtual void Read(hsStream *s, hsResMgr *mgr);
virtual void Write(hsStream *s, hsResMgr *mgr);
void SetStrength(float v) { fStrength = v; }
float GetStrength() const { return fStrength; }
void SetConstancy(float c) { fConstancy = c; }
float GetConstancy() const { return fConstancy; }
void SetSwirl(float s) { fSwirl = s; }
float GetSwirl() const { return fSwirl; }
void SetHorizontal(hsBool on) { fHorizontal = on; }
hsBool GetHorizontal() const { return fHorizontal; }
void SetRefDirection(const hsVector3& v);
const hsVector3& GetRefDirection() const { return fRefDir; }
};
class plParticleLocalWind : public plParticleWindEffect
{
protected:
hsVector3 fScale;
float fSpeed;
hsVector3 fPhase;
hsVector3 fInvScale;
double fLastPhaseSecs;
public:
plParticleLocalWind();
~plParticleLocalWind();
CLASSNAME_REGISTER( plParticleLocalWind );
GETINTERFACE_ANY( plParticleLocalWind, plParticleWindEffect );
virtual void PrepareEffect(const plEffectTargetInfo& target);
virtual hsBool ApplyEffect(const plEffectTargetInfo& target, int32_t i);
void SetScale(const hsVector3& v) { fScale = v; }
const hsVector3& GetScale() const { return fScale; }
void SetSpeed(float v) { fSpeed = v; }
float GetSpeed() const { return fSpeed; }
virtual void Read(hsStream *s, hsResMgr *mgr);
virtual void Write(hsStream *s, hsResMgr *mgr);
};
class plParticleUniformWind : public plParticleWindEffect
{
protected:
float fFreqMin;
float fFreqMax;
float fFreqCurr;
float fFreqRate;
double fCurrPhase;
double fLastFreqSecs;
float fCurrentStrength;
public:
plParticleUniformWind();
~plParticleUniformWind();
CLASSNAME_REGISTER( plParticleUniformWind );
GETINTERFACE_ANY( plParticleUniformWind, plParticleWindEffect );
virtual void PrepareEffect(const plEffectTargetInfo& target);
virtual hsBool ApplyEffect(const plEffectTargetInfo& target, int32_t i);
void SetFrequencyRange(float minSecsPerCycle, float maxSecsPerCycle);
void SetFrequencyRate(float secsPerCycle);
virtual void Read(hsStream *s, hsResMgr *mgr);
virtual void Write(hsStream *s, hsResMgr *mgr);
};
class plParticleInfluenceInfo
{
public:
hsVector3 fAvgVel;
hsVector3 fRepDir;
};
class plParticleFlockEffect : public plParticleEffect
{
//protected:
protected:
hsPoint3 fTargetOffset; // Worldspace offset from our target to get the true goal
hsPoint3 fDissenterTarget; // Where to particles go when they get scared and leave us?
float fInfAvgRadSq; // Square of the radius of influence for average velocity matching.
float fInfRepRadSq; // Same, for repelling from neighbors.
float fAvgVelStr; // How strongly are we influenced by average dir?
float fRepDirStr; // Same for repelling
float fGoalOrbitStr; // Same for the goal (when we're within the desired distance)
float fGoalChaseStr; // Same for the goal (when we're too far away, and chasing it)
float fGoalDistSq;
float fFullChaseDistSq;
float fMaxOrbitSpeed;
float fMaxChaseSpeed;
uint16_t fMaxParticles;
float *fDistSq; // Table of distances from particle to particle
plParticleInfluenceInfo *fInfluences;
void IUpdateDistances(const plEffectTargetInfo &target);
void IUpdateInfluences(const plEffectTargetInfo &target);
public:
plParticleFlockEffect();
~plParticleFlockEffect();
CLASSNAME_REGISTER( plParticleFlockEffect );
GETINTERFACE_ANY( plParticleFlockEffect, plParticleEffect );
virtual void PrepareEffect(const plEffectTargetInfo& target);
virtual hsBool ApplyEffect(const plEffectTargetInfo& target, int32_t i);
void SetTargetOffset(const hsPoint3 &offset) { fTargetOffset = offset; }
void SetDissenterTarget(const hsPoint3 &target) { fDissenterTarget = target; }
void SetInfluenceAvgRadius(float val) { fInfAvgRadSq = val * val; }
void SetInfluenceRepelRadius(float val) { fInfRepRadSq = val * val; }
void SetGoalRadius(float val) { fGoalDistSq = val * val; }
void SetFullChaseRadius(float val) { fFullChaseDistSq = val * val; }
void SetConformStr(float val) { fAvgVelStr = val; }
void SetRepelStr(float val) { fRepDirStr = val; }
void SetGoalOrbitStr(float val) { fGoalOrbitStr = val; }
void SetGoalChaseStr(float val) { fGoalChaseStr = val; }
void SetMaxOrbitSpeed(float val) { fMaxOrbitSpeed = val; }
void SetMaxChaseSpeed(float val) { fMaxChaseSpeed = val; }
void SetMaxParticles(uint16_t num);
virtual void Read(hsStream *s, hsResMgr *mgr);
virtual void Write(hsStream *s, hsResMgr *mgr);
virtual hsBool MsgReceive(plMessage *msg);
};
class plParticleFollowSystemEffect : public plParticleEffect
{
public:
CLASSNAME_REGISTER( plParticleFollowSystemEffect );
GETINTERFACE_ANY( plParticleFollowSystemEffect, plParticleEffect );
plParticleFollowSystemEffect();
virtual void PrepareEffect(const plEffectTargetInfo& target);
virtual hsBool ApplyEffect(const plEffectTargetInfo& target, int32_t i);
virtual void EndEffect(const plEffectTargetInfo& target);
protected:
hsMatrix44 fOldW2L;
hsBool fEvalThisFrame;
};
#endif