llviewerpartsource.h

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#ifndef LL_LLVIEWERPARTSOURCE_H
#define LL_LLVIEWERPARTSOURCE_H

#include "llmemory.h"
#include "llpartdata.h"
#include "llquaternion.h"
#include "v3math.h"

//
// A particle source - subclassed to generate particles with different behaviors
//
//

class LLViewerImage;
class LLViewerObject;
class LLViewerPart;

class LLViewerPartSource : public LLRefCount
{
public:
        enum
        {
                LL_PART_SOURCE_NULL,
                LL_PART_SOURCE_SCRIPT,
                LL_PART_SOURCE_SPIRAL,
                LL_PART_SOURCE_BEAM,
                LL_PART_SOURCE_CHAT
        };

        LLViewerPartSource(const U32 type);

        virtual void update(const F32 dt); // Return FALSE if this source is dead...

        virtual void setDead();
        BOOL isDead() const                             { return mIsDead; }
        void setSuspended( BOOL state ) { mIsSuspended = state; }
        BOOL isSuspended() const                { return mIsSuspended; }
        U32 getType() const                             { return mType; }
        static void updatePart(LLViewerPart &part, const F32 dt);
        void setOwnerUUID(const LLUUID& owner_id) { mOwnerUUID = owner_id; }
        LLUUID getOwnerUUID() const { return mOwnerUUID; }
        U32     getID() const { return mID; }
        LLUUID getImageUUID() const;
        void  setStart() ;

        LLVector3       mPosAgent; // Location of the particle source
        LLVector3       mTargetPosAgent; // Location of the target position
        LLVector3       mLastUpdatePosAgent;
        LLPointer<LLViewerObject>       mSourceObjectp;
        U32 mID;

protected:
        U32                     mType;
        BOOL            mIsDead;
        BOOL            mIsSuspended;
        F32                     mLastUpdateTime;
        F32                     mLastPartTime;
        LLUUID          mOwnerUUID;
        LLPointer<LLViewerImage>        mImagep;

        // Particle information
        U32                     mPartFlags; // Flags for the particle
        U32         mDelay ; //delay to start particles
};



//
// LLViewerPartSourceScript
//
// Particle source that handles the "generic" script-drive particle source
// attached to objects
//


class LLViewerPartSourceScript : public LLViewerPartSource
{
public:
        LLViewerPartSourceScript(LLViewerObject *source_objp);
        /*virtual*/ void update(const F32 dt);

        /*virtual*/ void setDead();

        BOOL updateFromMesg();

        // Returns a new particle source to attach to an object...
        static LLPointer<LLViewerPartSourceScript> unpackPSS(LLViewerObject *source_objp, LLPointer<LLViewerPartSourceScript> pssp, const S32 block_num);
        static LLPointer<LLViewerPartSourceScript> unpackPSS(LLViewerObject *source_objp, LLPointer<LLViewerPartSourceScript> pssp, LLDataPacker &dp);
        static LLPointer<LLViewerPartSourceScript> createPSS(LLViewerObject *source_objp, const LLPartSysData& particle_parameters);

        LLViewerImage *getImage() const                         { return mImagep; }
        void setImage(LLViewerImage *imagep);
        LLPartSysData                           mPartSysData;

        void setTargetObject(LLViewerObject *objp);

protected:
        LLQuaternion                            mRotation;                      // Current rotation for particle source
        LLPointer<LLViewerObject>       mTargetObjectp;         // Target object for the particle source
};


//
// Particle source for spiral effect (customize avatar, mostly)
//

class LLViewerPartSourceSpiral : public LLViewerPartSource
{
public:
        LLViewerPartSourceSpiral(const LLVector3 &pos);

        /*virtual*/ void setDead();

        /*virtual*/ void update(const F32 dt);

        void setSourceObject(LLViewerObject *objp);
        void setColor(const LLColor4 &color);

        static void updatePart(LLViewerPart &part, const F32 dt);
        LLColor4 mColor;
protected:
        LLVector3d mLKGSourcePosGlobal;
};


//
// Particle source for tractor(editing) beam
//

class LLViewerPartSourceBeam : public LLViewerPartSource
{
public:
        LLViewerPartSourceBeam();

        /*virtual*/ void setDead();

        /*virtual*/ void update(const F32 dt);

        void setSourceObject(LLViewerObject *objp);
        void setTargetObject(LLViewerObject *objp);
        void setSourcePosGlobal(const LLVector3d &pos_global);
        void setTargetPosGlobal(const LLVector3d &pos_global);
        void setColor(const LLColor4 &color);

        static void updatePart(LLViewerPart &part, const F32 dt);
        LLPointer<LLViewerObject>       mTargetObjectp;
        LLVector3d              mLKGTargetPosGlobal;
        LLColor4 mColor;
protected:
        ~LLViewerPartSourceBeam();
};



//
// Particle source for chat effect
//

class LLViewerPartSourceChat : public LLViewerPartSource
{
public:
        LLViewerPartSourceChat(const LLVector3 &pos);

        /*virtual*/ void setDead();

        /*virtual*/ void update(const F32 dt);

        void setSourceObject(LLViewerObject *objp);
        void setColor(const LLColor4 &color);
        static void updatePart(LLViewerPart &part, const F32 dt);
        LLColor4 mColor;
protected:
        LLVector3d mLKGSourcePosGlobal;
};


#endif // LL_LLVIEWERPARTSOURCE_H

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