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diff --git a/indra/newview/llviewerpartsource.h b/indra/newview/llviewerpartsource.h
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+/** 
+ * @file llviewerpartsource.h
+ * @brief LLViewerPartSource class header file
+ *
+ * Copyright (c) 2003-$CurrentYear$, Linden Research, Inc.
+ * $License$
+ */
+
+#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; }
+
+	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; }
+
+	LLVector3	mPosAgent; // Location of the particle source
+	LLVector3	mTargetPosAgent; // Location of the target position
+	LLVector3	mLastUpdatePosAgent;
+protected:
+	U32			mType;
+	BOOL		mIsDead;
+	F32			mLastUpdateTime;
+	F32			mLastPartTime;
+	LLUUID		mOwnerUUID;
+
+	// Particle information
+	U32			mPartFlags; // Flags for the particle
+};
+
+
+
+///////////////////////////////
+//
+// 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 LLViewerPartSourceScript *unpackPSS(LLViewerObject *source_objp, LLViewerPartSourceScript *pssp, const S32 block_num);
+	static LLViewerPartSourceScript *unpackPSS(LLViewerObject *source_objp, LLViewerPartSourceScript *pssp, LLDataPacker &dp);
+
+	LLViewerImage *getImage() const				{ return mImagep; }
+	void setImage(LLViewerImage *imagep);
+	LLPartSysData				mPartSysData;
+
+	void setTargetObject(LLViewerObject *objp);
+
+protected:
+	LLQuaternion				mRotation;			// Current rotation for particle source
+	LLPointer<LLViewerImage>	mImagep;			// Cached image pointer of the mPartSysData UUID
+	LLPointer<LLViewerObject>	mSourceObjectp;		// Source object that this particle system is attached to
+	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:
+	LLPointer<LLViewerImage>	mImagep;
+	LLPointer<LLViewerObject>	mSourceObjectp;
+	LLVector3d mLKGSourcePosGlobal;
+};
+
+
+////////////////////////////
+//
+// Particle source for tractor(editing) beam
+//
+
+class LLViewerPartSourceBeam : public LLViewerPartSource
+{
+public:
+	LLViewerPartSourceBeam();
+	~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<LLViewerImage>	mImagep;
+	LLPointer<LLViewerObject>	mSourceObjectp;
+	LLPointer<LLViewerObject>	mTargetObjectp;
+	LLVector3d		mLKGTargetPosGlobal;
+	LLColor4 mColor;
+protected:
+};
+
+
+
+//////////////////////////
+//
+// 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:
+	LLPointer<LLViewerImage>	mImagep;
+	LLPointer<LLViewerObject>	mSourceObjectp;
+	LLVector3d mLKGSourcePosGlobal;
+};
+
+
+#endif // LL_LLVIEWERPARTSOURCE_H