llflexibleobject.h

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#ifndef LL_LLFLEXIBLEOBJECT_H
#define LL_LLFLEXIBLEOBJECT_H

#include "llmemory.h"
#include "llprimitive.h"
#include "llvovolume.h"
#include "llwind.h"

// 10 ms for the whole thing!
const F32       FLEXIBLE_OBJECT_TIMESLICE               = 0.003f;
const U32       FLEXIBLE_OBJECT_MAX_LOD                 = 10;

// See llprimitive.h for LLFlexibleObjectData and DEFAULT/MIN/MAX values 

//-------------------------------------------------------------------

struct LLFlexibleObjectSection
{
        // Input parameters
        LLVector2               mScale;
        LLQuaternion    mAxisRotation;
        // Simulated state
        LLVector3               mPosition;
        LLVector3               mVelocity;
        LLVector3               mDirection;
        LLQuaternion    mRotation;
        // Derivatives (Not all currently used, will come back with LLVolume changes to automagically generate normals)
        LLVector3               mdPosition;
        //LLMatrix4             mRotScale;
        //LLMatrix4             mdRotScale;
};

//---------------------------------------------------------
// The LLVolumeImplFlexible class 
//---------------------------------------------------------
class LLVolumeImplFlexible : public LLVolumeInterface
{
        public:
                LLVolumeImplFlexible(LLViewerObject* volume, LLFlexibleObjectData* attributes);

                // Implements LLVolumeInterface
                U32 getID() const { return mID; }
                LLVector3 getFramePosition() const;
                LLQuaternion getFrameRotation() const;
                LLVolumeInterfaceType getInterfaceType() const          { return INTERFACE_FLEXIBLE; }
                BOOL doIdleUpdate(LLAgent &agent, LLWorld &world, const F64 &time);
                BOOL doUpdateGeometry(LLDrawable *drawable);
                LLVector3 getPivotPosition() const;
                void onSetVolume(const LLVolumeParams &volume_params, const S32 detail);
                void onSetScale(const LLVector3 &scale, BOOL damped);
                void onParameterChanged(U16 param_type, LLNetworkData *data, BOOL in_use, bool local_origin);
                void onShift(const LLVector3 &shift_vector);
                bool isVolumeUnique() const { return true; }
                bool isVolumeGlobal() const { return true; }
                bool isActive() const { return true; }
                const LLMatrix4& getWorldMatrix(LLXformMatrix* xform) const;
                void updateRelativeXform();
                void doFlexibleUpdate(); // Called to update the simulation
                void doFlexibleRebuild(); // Called to rebuild the geometry
                
                //void                          setAttributes( LLFlexibleObjectData );
                void                            setParentPositionAndRotationDirectly( LLVector3 p, LLQuaternion r );
                void                            setUsingCollisionSphere( bool u );
                void                            setCollisionSphere( LLVector3 position, F32 radius );
                void                            setRenderingCollisionSphere( bool r);

                LLVector3                       getEndPosition();
                LLQuaternion            getEndRotation();
                LLVector3                       getNodePosition( int nodeIndex );
                LLVector3                       getAnchorPosition() const;

        private:
                //--------------------------------------
                // private members
                //--------------------------------------
            // Backlink only; don't make this an LLPointer.
                LLViewerObject*                         mVO;
                LLTimer                                         mTimer;
                LLVector3                                       mAnchorPosition;
                LLVector3                                       mParentPosition;
                LLQuaternion                            mParentRotation;
                LLQuaternion                            mLastFrameRotation;
                LLQuaternion                            mLastSegmentRotation;
                BOOL                                            mInitialized;
                BOOL                                            mUpdated;
                LLFlexibleObjectData*           mAttributes;
                LLFlexibleObjectSection         mSection        [ (1<<FLEXIBLE_OBJECT_MAX_SECTIONS)+1 ];
                S32                                                     mInitializedRes;
                S32                                                     mSimulateRes;
                S32                                                     mRenderRes;
                U32                                                     mFrameNum;
                LLVector3                                       mCollisionSpherePosition;
                F32                                                     mCollisionSphereRadius;
                U32                                                     mID;

                //--------------------------------------
                // private methods
                //--------------------------------------
                void setAttributesOfAllSections ();

                void remapSections(LLFlexibleObjectSection *source, S32 source_sections,
                                                                                 LLFlexibleObjectSection *dest, S32 dest_sections);
                
public:
                // Global setting for update rate
                static F32                                      sUpdateFactor;

};// end of class definition


#endif // LL_LLFLEXIBLEOBJECT_H

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