llhudeffectpointat.h

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#ifndef LL_LLHUDEFFECTPOINTAT_H
#define LL_LLHUDEFFECTPOINTAT_H

#include "llhudeffect.h"

class LLViewerObject;
class LLVOAvatar;

typedef enum e_pointat_type
{
        POINTAT_TARGET_NONE,
        POINTAT_TARGET_SELECT,
        POINTAT_TARGET_GRAB,
        POINTAT_TARGET_CLEAR,
        POINTAT_NUM_TARGETS
} EPointAtType;

class LLHUDEffectPointAt : public LLHUDEffect
{
public:
        friend class LLHUDObject;

        /*virtual*/ void markDead();
        /*virtual*/ void setSourceObject(LLViewerObject* objectp);

        BOOL setPointAt(EPointAtType target_type, LLViewerObject *object, LLVector3 position);
        void clearPointAtTarget();

        EPointAtType getPointAtType() { return mTargetType; }
        const LLVector3& getPointAtPosAgent() { return mTargetPos; }
        const LLVector3d getPointAtPosGlobal();
protected:
        LLHUDEffectPointAt(const U8 type);
        ~LLHUDEffectPointAt();

        /*virtual*/ void render();
        /*virtual*/ void packData(LLMessageSystem *mesgsys);
        /*virtual*/ void unpackData(LLMessageSystem *mesgsys, S32 blocknum);

        // lookat behavior has either target position or target object with offset
        void setTargetObjectAndOffset(LLViewerObject *objp, LLVector3d offset);
        void setTargetPosGlobal(const LLVector3d &target_pos_global);
        void calcTargetPosition();
        void update();
public:
        static BOOL sDebugPointAt;
private:
        EPointAtType                            mTargetType;
        LLVector3d                                      mTargetOffsetGlobal;
        LLVector3                                       mLastSentOffsetGlobal;
        F32                                                     mKillTime;
        LLFrameTimer                            mTimer;
        LLVector3                                       mTargetPos;
        F32                                                     mLastSendTime;
};

#endif // LL_LLHUDEFFECTPOINTAT_H

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