/indra/newview/llvograss.h
https://bitbucket.org/lindenlab/viewer-beta/ · C++ Header · 124 lines · 73 code · 25 blank · 26 comment · 0 complexity · 5d66b04e16ffad183091f009dd6acc99 MD5 · raw file
- /**
- * @file llvograss.h
- * @brief Description of LLVOGrass class
- *
- * $LicenseInfo:firstyear=2001&license=viewerlgpl$
- * Second Life Viewer Source Code
- * Copyright (C) 2010, Linden Research, Inc.
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation;
- * version 2.1 of the License only.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- *
- * Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
- * $/LicenseInfo$
- */
- #ifndef LL_LLVOGRASS_H
- #define LL_LLVOGRASS_H
- #include "llviewerobject.h"
- #include "lldarray.h"
- #include <map>
- class LLSurfacePatch;
- class LLViewerTexture;
- class LLVOGrass : public LLAlphaObject
- {
- public:
- LLVOGrass(const LLUUID &id, const LLPCode pcode, LLViewerRegion *regionp);
- // Initialize data that's only inited once per class.
- static void initClass();
- static void cleanupClass();
- virtual U32 getPartitionType() const;
- /*virtual*/ U32 processUpdateMessage(LLMessageSystem *mesgsys,
- void **user_data,
- U32 block_num,
- const EObjectUpdateType update_type,
- LLDataPacker *dp);
- static void import(LLFILE *file, LLMessageSystem *mesgsys, const LLVector3 &pos);
- /*virtual*/ void exportFile(LLFILE *file, const LLVector3 &position);
- void updateDrawable(BOOL force_damped);
- /*virtual*/ LLDrawable* createDrawable(LLPipeline *pipeline);
- /*virtual*/ BOOL updateGeometry(LLDrawable *drawable);
- /*virtual*/ void getGeometry(S32 idx,
- LLStrider<LLVector4a>& verticesp,
- LLStrider<LLVector3>& normalsp,
- LLStrider<LLVector2>& texcoordsp,
- LLStrider<LLColor4U>& colorsp,
- LLStrider<U16>& indicesp);
- void updateFaceSize(S32 idx) { }
- /*virtual*/ void updateTextures();
- /*virtual*/ BOOL updateLOD();
- /*virtual*/ void setPixelAreaAndAngle(LLAgent &agent); // generate accurate apparent angle and area
- void plantBlades();
- /*virtual*/ BOOL isActive() const; // Whether this object needs to do an idleUpdate.
- BOOL idleUpdate(LLAgent &agent, LLWorld &world, const F64 &time);
- /*virtual*/ BOOL lineSegmentIntersect(const LLVector3& start, const LLVector3& end,
- S32 face = -1, // which face to check, -1 = ALL_SIDES
- BOOL pick_transparent = FALSE,
- S32* face_hit = NULL, // which face was hit
- LLVector3* intersection = NULL, // return the intersection point
- LLVector2* tex_coord = NULL, // return the texture coordinates of the intersection point
- LLVector3* normal = NULL, // return the surface normal at the intersection point
- LLVector3* bi_normal = NULL // return the surface bi-normal at the intersection point
- );
- static S32 sMaxGrassSpecies;
- struct GrassSpeciesData
- {
- LLUUID mTextureID;
-
- F32 mBladeSizeX;
- F32 mBladeSizeY;
- };
- typedef std::map<U32, GrassSpeciesData*> SpeciesMap;
- U8 mSpecies; // Species of grass
- F32 mBladeSizeX;
- F32 mBladeSizeY;
-
- LLSurfacePatch *mPatch; // Stores the land patch where the grass is centered
- U64 mLastPatchUpdateTime;
- LLVector3 mGrassBend; // Accumulated wind (used for blowing trees)
- LLVector3 mGrassVel;
- LLVector3 mWind;
- F32 mBladeWindAngle;
- F32 mBWAOverlap;
- protected:
- ~LLVOGrass();
- private:
- void updateSpecies();
- F32 mLastHeight; // For cheap update hack
- S32 mNumBlades;
- static SpeciesMap sSpeciesTable;
- };
- #endif // LL_VO_GRASS_