133 lines
4.3 KiB
C++
133 lines
4.3 KiB
C++
/**
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* @file llvograss.h
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* @brief Description of LLVOGrass class
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*
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* $LicenseInfo:firstyear=2001&license=viewerlgpl$
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* Second Life Viewer Source Code
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* Copyright (C) 2010, Linden Research, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation;
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* version 2.1 of the License only.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*
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* Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
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* $/LicenseInfo$
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*/
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#ifndef LL_LLVOGRASS_H
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#define LL_LLVOGRASS_H
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#include "llviewerobject.h"
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#include <map>
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class LLSurfacePatch;
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class LLViewerTexture;
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class LLVOGrass : public LLAlphaObject
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{
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public:
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LLVOGrass(const LLUUID &id, const LLPCode pcode, LLViewerRegion *regionp);
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// Initialize data that's only inited once per class.
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static void initClass();
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static void cleanupClass();
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virtual U32 getPartitionType() const;
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/*virtual*/ U32 processUpdateMessage(LLMessageSystem *mesgsys,
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void **user_data,
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U32 block_num,
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const EObjectUpdateType update_type,
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LLDataPacker *dp);
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static void import(LLFILE *file, LLMessageSystem *mesgsys, const LLVector3 &pos);
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/*virtual*/ void exportFile(LLFILE *file, const LLVector3 &position);
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void updateDrawable(BOOL force_damped);
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/*virtual*/ LLDrawable* createDrawable(LLPipeline *pipeline);
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/*virtual*/ BOOL updateGeometry(LLDrawable *drawable);
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/*virtual*/ void getGeometry(S32 idx,
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LLStrider<LLVector4a>& verticesp,
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LLStrider<LLVector3>& normalsp,
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LLStrider<LLVector2>& texcoordsp,
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LLStrider<LLColor4U>& colorsp,
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LLStrider<LLColor4U>& emissivep,
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LLStrider<U16>& indicesp);
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void updateFaceSize(S32 idx) { }
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/*virtual*/ void updateTextures();
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/*virtual*/ BOOL updateLOD();
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/*virtual*/ void setPixelAreaAndAngle(LLAgent &agent); // generate accurate apparent angle and area
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void plantBlades();
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/*virtual*/ BOOL isActive() const; // Whether this object needs to do an idleUpdate.
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/*virtual*/ void idleUpdate(LLAgent &agent, const F64 &time);
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/*virtual*/ BOOL lineSegmentIntersect(const LLVector4a& start, const LLVector4a& end,
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S32 face = -1, // which face to check, -1 = ALL_SIDES
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BOOL pick_transparent = FALSE,
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BOOL pick_rigged = FALSE,
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BOOL pick_unselectable = TRUE,
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S32* face_hit = NULL, // which face was hit
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LLVector4a* intersection = NULL, // return the intersection point
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LLVector2* tex_coord = NULL, // return the texture coordinates of the intersection point
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LLVector4a* normal = NULL, // return the surface normal at the intersection point
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LLVector4a* tangent = NULL // return the surface tangent at the intersection point
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);
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static S32 sMaxGrassSpecies;
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struct GrassSpeciesData
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{
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LLUUID mTextureID;
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F32 mBladeSizeX;
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F32 mBladeSizeY;
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// <FS:Ansariel> FIRE-7802: Grass and tree selection in build tool
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std::string mName;
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};
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typedef std::map<U32, GrassSpeciesData*> SpeciesMap;
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U8 mSpecies; // Species of grass
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F32 mBladeSizeX;
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F32 mBladeSizeY;
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LLSurfacePatch *mPatch; // Stores the land patch where the grass is centered
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U64 mLastPatchUpdateTime;
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LLVector3 mGrassBend; // Accumulated wind (used for blowing trees)
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LLVector3 mGrassVel;
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LLVector3 mWind;
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F32 mBladeWindAngle;
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F32 mBWAOverlap;
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protected:
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~LLVOGrass();
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private:
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void updateSpecies();
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F32 mLastHeight; // For cheap update hack
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S32 mNumBlades;
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// <FS:Ansariel> FIRE-7802: Grass and tree selection in build tool
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public:
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// </FS:Ansariel>
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static SpeciesMap sSpeciesTable;
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};
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#endif // LL_VO_GRASS_
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