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/**
* @file llviewerpartsim.h
* @brief LLViewerPart class header file
*
* Copyright (c) 2003-$CurrentYear$, Linden Research, Inc.
* $License$
*/
#ifndef LL_LLVIEWERPARTSIM_H
#define LL_LLVIEWERPARTSIM_H
#include "lldarrayptr.h"
#include "llskiplist.h"
#include "llframetimer.h"
#include "llmemory.h"
#include "llpartdata.h"
class LLViewerImage;
class LLViewerPart;
class LLViewerPartSource;
class LLViewerRegion;
class LLViewerImage;
class LLVOPartGroup;
typedef void (*LLVPCallback)(LLViewerPart &part, const F32 dt);
///////////////////
//
// An individual particle
//
class LLViewerPart : public LLPartData
{
public:
LLViewerPart();
~LLViewerPart();
LLViewerPart &operator=(const LLViewerPart &part);
void init(LLViewerPartSource *sourcep, LLViewerImage *imagep, LLVPCallback cb);
U32 mPartID; // Particle ID used primarily for moving between groups
F32 mLastUpdateTime; // Last time the particle was updated
LLVPCallback mVPCallback; // Callback function for more complicated behaviors
LLPointer<LLViewerPartSource> mPartSourcep; // Particle source used for this object
// Current particle state (possibly used for rendering)
LLPointer<LLViewerImage> mImagep;
LLVector3 mPosAgent;
LLVector3 mVelocity;
LLVector3 mAccel;
LLColor4 mColor;
LLVector2 mScale;
static U32 sNextPartID;
};
class LLViewerPartGroup
{
public:
LLViewerPartGroup(const LLVector3 ¢er,
const F32 box_radius);
virtual ~LLViewerPartGroup();
void cleanup();
BOOL addPart(LLViewerPart &part);
void updateParticles(const F32 dt);
BOOL posInGroup(const LLVector3 &pos);
void shift(const LLVector3 &offset);
LLDynamicArray<LLViewerPart> mParticles;
const LLVector3 &getCenterAgent() const { return mCenterAgent; }
S32 getCount() const { return mParticles.count(); }
LLViewerRegion *getRegion() const { return mRegionp; }
protected:
void removePart(const S32 part_num);
protected:
LLVector3 mCenterAgent;
F32 mBoxRadius;
LLVector3 mMinObjPos;
LLVector3 mMaxObjPos;
LLPointer<LLVOPartGroup> mVOPartGroupp;
LLViewerRegion *mRegionp;
};
class LLViewerPartSim
{
public:
LLViewerPartSim();
virtual ~LLViewerPartSim();
void shift(const LLVector3 &offset);
void updateSimulation();
void addPartSource(LLViewerPartSource *sourcep);
void cleanupRegion(LLViewerRegion *regionp);
BOOL shouldAddPart(); // Just decides whether this particle should be added or not (for particle count capping)
void addPart(LLViewerPart &part);
void cleanMutedParticles(const LLUUID& task_id);
friend class LLViewerPartGroup;
BOOL aboveParticleLimit() const { return sParticleCount > sMaxParticleCount; }
static void setMaxPartCount(const S32 max_parts) { sMaxParticleCount = max_parts; }
static S32 getMaxPartCount() { return sMaxParticleCount; }
static void incPartCount(const S32 count) { sParticleCount += count; }
static void decPartCount(const S32 count) { sParticleCount -= count; }
protected:
LLViewerPartGroup *createViewerPartGroup(const LLVector3 &pos_agent);
LLViewerPartGroup *put(LLViewerPart &part);
protected:
LLDynamicArray<LLViewerPartGroup *> mViewerPartGroups;
LLDynamicArrayPtr<LLPointer<LLViewerPartSource> > mViewerPartSources;
LLFrameTimer mSimulationTimer;
static S32 sMaxParticleCount;
static S32 sParticleCount;
};
#endif // LL_LLVIEWERPARTSIM_H
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