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Diffstat (limited to 'indra/llmessage/partsyspacket.h')
| -rw-r--r-- | indra/llmessage/partsyspacket.h | 261 |
1 files changed, 0 insertions, 261 deletions
diff --git a/indra/llmessage/partsyspacket.h b/indra/llmessage/partsyspacket.h deleted file mode 100644 index 23307f3409..0000000000 --- a/indra/llmessage/partsyspacket.h +++ /dev/null @@ -1,261 +0,0 @@ -/** - * @file partsyspacket.h - * @brief Object for packing particle system initialization parameters - * before sending them over the network - * - * $LicenseInfo:firstyear=2000&license=viewerlgpl$ - * 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_PARTSYSPACKET_H -#define LL_PARTSYSPACKET_H - -#include "lluuid.h" - -// Particle system stuff - -const U64 PART_SYS_MAX_TIME_IN_USEC = 1000000; // 1 second, die not quite near instantaneously - - -// this struct is for particle system initialization parameters -// I'm breaking some rules here, but I need a storage structure to hold initialization data -// for these things. Sorry guys, they're not simple enough (yet) to avoid this cleanly -struct LLPartInitData { - // please do not add functions to this class -- data only! - //F32 k[18]; // first 9 --> x,y,z last 9 --> scale, alpha, rot - //F32 kill_p[6]; // last one is for particles that die when they reach a spherical bounding radius - //F32 kill_plane[3]; - //F32 bounce_p[5]; - F32 bounce_b; // recently changed - // no need to store orientation and position here, as they're sent over seperately - //F32 pos_ranges[6]; - //F32 vel_ranges[6]; - F32 scale_range[4]; - F32 alpha_range[4]; - F32 vel_offset[3]; //new - more understandable! - - F32 mDistBeginFadeout; // for fadeout LOD optimization - F32 mDistEndFadeout; - - LLUUID mImageUuid; - //U8 n; // number of particles - U8 mFlags[8]; // for miscellaneous data --> its interpretation can change at my whim! - U8 createMe; // do I need to be created? or has the work allready been done? - //ActionFlag is now mFlags[PART_SYS_ACTION_BYTE] - //Spawn point is initially object creation center - - F32 diffEqAlpha[3]; - F32 diffEqScale[3]; - - U8 maxParticles; - //How many particles exist at any time within the system? - U8 initialParticles; - //How many particles exist when the system is created? - F32 killPlaneZ; - //For simplicity assume the XY plane, so this sets an altitude at which to die - F32 killPlaneNormal[3]; - //Normal if not planar XY - F32 bouncePlaneZ; - //For simplicity assume the XY plane, so this sets an altitude at which to bounce - F32 bouncePlaneNormal[3]; - //Normal if not planar XY - F32 spawnRange; - //Range of emission points about the mSpawnPoint - F32 spawnFrequency; - //Required if the system is to spawn new particles. - //This variable determines the time after a particle dies when it is respawned. - F32 spawnFreqencyRange; - //Determines the random range of time until a new particle is spawned. - F32 spawnDirection[3]; - //Direction vector giving the mean direction in which particles are spawned - F32 spawnDirectionRange; - //Direction limiting the angular range of emissions about the mean direction. 1.0f means everywhere, 0.0f means uni-directional - F32 spawnVelocity; - //The mean speed at which particles are emitted - F32 spawnVelocityRange; - //The range of speeds about the mean at which particles are emitted. - F32 speedLimit; - //Used to constrain particle maximum velocity - F32 windWeight; - //How much of an effect does wind have - F32 currentGravity[3]; - //Gravity direction used in update calculations - F32 gravityWeight; - //How much of an effect does gravity have - F32 globalLifetime; - //If particles re-spawn, a system can exist forever. - //If (ActionFlags & PART_SYS_GLOBAL_DIE) is true this variable is used to determine how long the system lasts. - F32 individualLifetime; - //How long does each particle last if nothing else happens to it - F32 individualLifetimeRange; - //Range of variation in individual lifetimes - F32 alphaDecay; - //By what factor does alpha decrease as the lifetime of a particle is approached. - F32 scaleDecay; - //By what factor does scale decrease as the lifetime of a particle is approached. - F32 distanceDeath; - //With the increased functionality, particle systems can expand to indefinite size - //(e.g. wind can chaotically move particles into a wide spread). - //To avoid particles exceeding normal object size constraints, - //set the PART_SYS_DISTANCE_DEATH flag, and set a distance value here, representing a radius around the spawn point. - F32 dampMotionFactor; - //How much to damp motion - F32 windDiffusionFactor[3]; - //Change the size and alpha of particles as wind speed increases (scale gets bigger, alpha smaller) -}; - -// constants for setting flag values -// BYTES are in range 0-8, bits are in range 2^0 - 2^8 and can only be powers of two -const int PART_SYS_NO_Z_BUFFER_BYTE = 0; // option to turn off z-buffer when rendering -const int PART_SYS_NO_Z_BUFFER_BIT = 2; // particle systems -- -// I advise against using this, as it looks bad in every case I've tried - -const int PART_SYS_SLOW_ANIM_BYTE = 0; // slow animation down by a factor of 10 -const int PART_SYS_SLOW_ANIM_BIT = 1; // useful for tweaking anims during debugging - -const int PART_SYS_FOLLOW_VEL_BYTE = 0; // indicates whether to orient sprites towards -const int PART_SYS_FOLLOW_VEL_BIT = 4; // their velocity vector -- default is false - -const int PART_SYS_IS_LIGHT_BYTE = 0; // indicates whether a particular particle system -const int PART_SYS_IS_LIGHT_BIT = 8; // is also a light object -- for andrew -// should deprecate this once there is a general method for setting light properties of objects - -const int PART_SYS_SPAWN_COPY_BYTE = 0; // indicates whether to spawn baby particle systems on -const int PART_SYS_SPAWN_COPY_BIT = 0x10; // particle death -- intended for smoke trails - -const int PART_SYS_COPY_VEL_BYTE = 0; // indicates whether baby particle systems inherit parents vel -const int PART_SYS_COPY_VEL_BIT = 0x20; // (by default they don't) - -const int PART_SYS_INVISIBLE_BYTE = 0; // optional -- turn off display, just simulate -const int PART_SYS_INVISIBLE_BIT = 0x40; // useful for smoke trails - -const int PART_SYS_ADAPT_TO_FRAMERATE_BYTE = 0; // drop sprites from render call proportionally -const int PART_SYS_ADAPT_TO_FRAMERATE_BIT = 0x80; // to how far we are below 60 fps - - -// 26 September 2001 - not even big enough to hold all changes, so should enlarge anyway -//const U16 MAX_PART_SYS_PACKET_SIZE = 180; -const U16 MAX_PART_SYS_PACKET_SIZE = 256; - -//const U8 PART_SYS_K_MASK = 0x01; -const U8 PART_SYS_KILL_P_MASK = 0x02; -const U8 PART_SYS_BOUNCE_P_MASK = 0x04; -const U8 PART_SYS_BOUNCE_B_MASK = 0x08; -//const U8 PART_SYS_POS_RANGES_MASK = 0x10; -//const U8 PART_SYS_VEL_RANGES_MASK = 0x20; -const U8 PART_SYS_VEL_OFFSET_MASK = 0x10; //re-use one of the original slots now commented out -const U8 PART_SYS_ALPHA_SCALE_DIFF_MASK = 0x20; //re-use one of the original slots now commented out -const U8 PART_SYS_SCALE_RANGE_MASK = 0x40; -const U8 PART_SYS_M_IMAGE_UUID_MASK = 0x80; -const U8 PART_SYS_BYTE_3_ALPHA_MASK = 0x01; // wrapped around, didn't we? - -const U8 PART_SYS_BYTE_SPAWN_MASK = 0x01; -const U8 PART_SYS_BYTE_ENVIRONMENT_MASK = 0x02; -const U8 PART_SYS_BYTE_LIFESPAN_MASK = 0x04; -const U8 PART_SYS_BYTE_DECAY_DAMP_MASK = 0x08; -const U8 PART_SYS_BYTE_WIND_DIFF_MASK = 0x10; - - -// 26 September 2001 - new constants for mActionFlags -const int PART_SYS_ACTION_BYTE = 1; -const U8 PART_SYS_SPAWN = 0x01; -const U8 PART_SYS_BOUNCE = 0x02; -const U8 PART_SYS_AFFECTED_BY_WIND = 0x04; -const U8 PART_SYS_AFFECTED_BY_GRAVITY = 0x08; -const U8 PART_SYS_EVALUATE_WIND_PER_PARTICLE = 0x10; -const U8 PART_SYS_DAMP_MOTION = 0x20; -const U8 PART_SYS_WIND_DIFFUSION = 0x40; - -// 26 September 2001 - new constants for mKillFlags -const int PART_SYS_KILL_BYTE = 2; -const U8 PART_SYS_KILL_PLANE = 0x01; -const U8 PART_SYS_GLOBAL_DIE = 0x02; -const U8 PART_SYS_DISTANCE_DEATH = 0x04; -const U8 PART_SYS_TIME_DEATH = 0x08; - - -// global, because the sim-side also calls it in the LLPartInitDataFactory - - -void gSetInitDataDefaults(LLPartInitData *setMe); - -class LLPartSysCompressedPacket -{ -public: - LLPartSysCompressedPacket(); - ~LLPartSysCompressedPacket(); - bool fromLLPartInitData(LLPartInitData *in, U32 &bytesUsed); - bool toLLPartInitData(LLPartInitData *out, U32 *bytesUsed); - bool fromUnsignedBytes(U8 *in, U32 bytesUsed); - bool toUnsignedBytes(U8 *out); - U32 bufferSize(); - U8 *getBytePtr(); - -protected: - U8 mData[MAX_PART_SYS_PACKET_SIZE]; - U32 mNumBytes; - LLPartInitData mDefaults; // this is intended to hold default LLPartInitData values - // please do not modify it - LLPartInitData mWorkingCopy; // uncompressed data I'm working with - -protected: - // private functions (used only to break up code) - void writeFlagByte(LLPartInitData *in); - //U32 writeK(LLPartInitData *in, U32 startByte); - U32 writeKill_p(LLPartInitData *in, U32 startByte); - U32 writeBounce_p(LLPartInitData *in, U32 startByte); - U32 writeBounce_b(LLPartInitData *in, U32 startByte); - //U32 writePos_ranges(LLPartInitData *in, U32 startByte); - //U32 writeVel_ranges(LLPartInitData *in, U32 startByte); - U32 writeAlphaScaleDiffEqn_range(LLPartInitData *in, U32 startByte); - U32 writeScale_range(LLPartInitData *in, U32 startByte); - U32 writeAlpha_range(LLPartInitData *in, U32 startByte); - U32 writeUUID(LLPartInitData *in, U32 startByte); - - U32 writeVelocityOffset(LLPartInitData *in, U32 startByte); - U32 writeSpawn(LLPartInitData *in, U32 startByte); //all spawn data - U32 writeEnvironment(LLPartInitData *in, U32 startByte); //wind and gravity - U32 writeLifespan(LLPartInitData *in, U32 startByte); //lifespan data - individual and global - U32 writeDecayDamp(LLPartInitData *in, U32 startByte); //alpha and scale, and motion damp - U32 writeWindDiffusionFactor(LLPartInitData *in, U32 startByte); - - - //U32 readK(LLPartInitData *in, U32 startByte); - U32 readKill_p(LLPartInitData *in, U32 startByte); - U32 readBounce_p(LLPartInitData *in, U32 startByte); - U32 readBounce_b(LLPartInitData *in, U32 startByte); - //U32 readPos_ranges(LLPartInitData *in, U32 startByte); - //U32 readVel_ranges(LLPartInitData *in, U32 startByte); - U32 readAlphaScaleDiffEqn_range(LLPartInitData *in, U32 startByte); - U32 readScale_range(LLPartInitData *in, U32 startByte); - U32 readAlpha_range(LLPartInitData *in, U32 startByte); - U32 readUUID(LLPartInitData *in, U32 startByte); - - U32 readVelocityOffset(LLPartInitData *in, U32 startByte); - U32 readSpawn(LLPartInitData *in, U32 startByte); //all spawn data - U32 readEnvironment(LLPartInitData *in, U32 startByte); //wind and gravity - U32 readLifespan(LLPartInitData *in, U32 startByte); //lifespan data - individual and global - U32 readDecayDamp(LLPartInitData *in, U32 startByte); //alpha and scale, and motion damp - U32 readWindDiffusionFactor(LLPartInitData *in, U32 startByte); -}; - -#endif - |