357 lines
16 KiB
C
357 lines
16 KiB
C
/*
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01234567890123456789012345678901234567890123456789012345678901234567890123456789
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--------------------------------------------------------------------------------
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-- Description : Particles system
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--------------------------------------------------------------------------------
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-- Creation date : 12 jun 1997 Author : FPI
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--------------------------------------------------------------------------------
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*/
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#ifndef D_THROW_PRT
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#include "acp_base.h"
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#include "MTH.h"
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#include "RND.h"
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#include "MEC.h"
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#include "GMT.h"
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#include "GEO.h"
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#include "GLI.h"
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#include "COL.h"
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#include "PRT/PointPrt.h"
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/*
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--------------------------------------------------------------------------------
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-- Description : Global variables
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--------------------------------------------------------------------------------
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*/
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/*
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--------------------------------------------------------------------------------
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-- Description : Point particles creation
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--------------------------------------------------------------------------------
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-- Creation date : 12 jun 1997 Author : FPI
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--------------------------------------------------------------------------------
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*/
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void PRT_fn_vCreatePointParticles ( PRT_tdstParticlesSystem *_p_stParticlesSystem,
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GMT_tdxHandleToGameMaterial _hMaterial )
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{
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ACP_tdxHandleOfElement hElementPoint;
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ACP_tdxIndex xPointIndex;
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GEO_tdstColor stColor;
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PRT_tdstPointCommonData *p_stPointCommonData;
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_p_stParticlesSystem->xParticlesType = PRT_C_xPointParticles;
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/* Table de vitesse de particules */
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GEO_M_CPAMalloc ( _p_stParticlesSystem->d_stSpeed,
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MTH3D_tdstVector *,
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sizeof ( MTH3D_tdstVector ) * _p_stParticlesSystem->xNbParticles,
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E_uwGEONotEnoughtMemory );
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GEO_M_CPAMalloc ( _p_stParticlesSystem->d_stListOfParticles,
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void *,
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sizeof ( PRT_tdstPointParticle ) * _p_stParticlesSystem->xNbParticles,
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E_uwGEONotEnoughtMemory );
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GEO_M_CPAMalloc ( _p_stParticlesSystem->p_stCommonData,
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void *,
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sizeof ( PRT_tdstPointCommonData ),
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E_uwGEONotEnoughtMemory );
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stColor.xR = 1.0f;
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stColor.xG = 1.0f;
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stColor.xB = 1.0f;
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stColor.xA = 1.0f;
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GEO_vCreateGeometricObject ( &(_p_stParticlesSystem->hParticlesSystemObject), _p_stParticlesSystem->xNbParticles, 1 );
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GEO_xCreateElementPoints ( _p_stParticlesSystem->hParticlesSystemObject, &hElementPoint, _p_stParticlesSystem->xNbParticles );
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GEO_xSetGameMaterialOfElementPoints ( _p_stParticlesSystem->hParticlesSystemObject, hElementPoint, _hMaterial );
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for ( xPointIndex = 0 ; xPointIndex < _p_stParticlesSystem->xNbParticles ; xPointIndex ++ )
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{
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GEO_xSetIndexOfElementPoints ( _p_stParticlesSystem->hParticlesSystemObject, hElementPoint, xPointIndex, xPointIndex );
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}
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GEO_vEndCreateObject ( _p_stParticlesSystem->hParticlesSystemObject );
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p_stPointCommonData = (PRT_tdstPointCommonData *)(_p_stParticlesSystem->p_stCommonData);
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p_stPointCommonData->hMaterial = _hMaterial;
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}
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/*
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--------------------------------------------------------------------------------
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-- Description : Point particles destruction
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--------------------------------------------------------------------------------
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-- Creation date : 12 jun 1997 Author : FPI
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--------------------------------------------------------------------------------
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*/
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#ifndef _FIRE_DEADCODE_U64_ /* Added by RUC */
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void PRT_fn_vDestructPointParticles ( PRT_tdstParticlesSystem *_p_stParticlesSystem )
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{
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_p_stParticlesSystem->xParticlesType = PRT_C_xNullParticles;
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/* Table de vitesse de particules */
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GEO_M_CPAFree ( _p_stParticlesSystem->d_stSpeed );
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_p_stParticlesSystem->d_stSpeed = NULL;
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GEO_M_CPAFree ( _p_stParticlesSystem->d_stListOfParticles );
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_p_stParticlesSystem->d_stListOfParticles = NULL;
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GEO_M_CPAFree ( _p_stParticlesSystem->p_stCommonData );
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_p_stParticlesSystem->p_stCommonData = NULL;
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GEO_vDeleteGeometricObject ( &(_p_stParticlesSystem->hParticlesSystemObject) );
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_p_stParticlesSystem->hParticlesSystemObject = NULL;
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}
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/*
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--------------------------------------------------------------------------------
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-- Description :
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--------------------------------------------------------------------------------
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-- Creation date : 12 jun 1997 Author : FPI
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--------------------------------------------------------------------------------
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*/
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void PRT_fn_vSetGameMaterialPointParticles ( PRT_tdstParticlesSystem *_p_stParticlesSystem,
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GMT_tdxHandleToGameMaterial _hGameMaterial )
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{
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PRT_tdstPointCommonData *p_stPointCommonData;
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p_stPointCommonData = (PRT_tdstPointCommonData *)(_p_stParticlesSystem->p_stCommonData);
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p_stPointCommonData->hMaterial = _hGameMaterial;
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}
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#endif /* _FIRE_DEADCODE_U64_ */ /* Added by RUC */
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/*
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--------------------------------------------------------------------------------
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-- Description :
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--------------------------------------------------------------------------------
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-- Creation date : 12 jun 1997 Author : FPI
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--------------------------------------------------------------------------------
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*/
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void PRT_fn_vGeneratePointParticle ( MTH3D_tdstVector *_p_stParticlePosition,
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MTH3D_tdstVector *_p_stParticleSpeed,
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PRT_tdstPointParticle *_p_stPointParticle,
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PRT_tdstPointCommonData *_p_stPointCommonData,
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PRT_tdstParticlesSource *_p_stParticlesSource,
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POS_tdstCompletePosition *_p_stSourceMatrix,
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MTH_tdxReal _xTimeT )
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{
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MTH3D_tdstVector stSpeedVariation;
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MTH_tdxReal xC1;
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MTH_tdxReal xC2;
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MTH_tdxReal xC3;
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MTH_tdxReal xC4;
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MTH3D_tdstVector stTrans;
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/* vecteur variation de vitesse */
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MTH3D_M_vSetVectorElements ( &stSpeedVariation,
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RND_fn_xGetRealRandomValue ( 0, MTH_M_xNeg ( _p_stParticlesSource->xSpeedRange ), _p_stParticlesSource->xSpeedRange ),
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RND_fn_xGetRealRandomValue ( 0, MTH_M_xNeg ( _p_stParticlesSource->xSpeedRange ), _p_stParticlesSource->xSpeedRange ),
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RND_fn_xGetRealRandomValue ( 0, MTH_M_xNeg ( _p_stParticlesSource->xSpeedRange ), _p_stParticlesSource->xSpeedRange ) );
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/* vitesse initiale */
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MTH3D_M_vMullAddVector ( _p_stParticleSpeed, _p_stParticlesSource->xSpeed, &(_p_stParticlesSource->stNormal), &stSpeedVariation );
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if ( (_p_stParticlesSource->ucLinkMode == PRT_C_ucRotationLink) || (_p_stParticlesSource->ucLinkMode == PRT_C_ucRotAndTransLink) )
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{
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POS_fn_vMulMatrixVector ( _p_stParticleSpeed, _p_stSourceMatrix, _p_stParticleSpeed );
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}
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/* position initiale */
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if ( _p_stParticlesSource->ucGeometryMode == PRT_C_ucPoint )
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{
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MTH3D_M_vCopyVector ( _p_stParticlePosition, &(_p_stParticlesSource->stVertex1) );
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}
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else
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if ( _p_stParticlesSource->ucGeometryMode == PRT_C_ucQuad )
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{
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/* genere les deux parametres */
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xC2 = RND_fn_xGetRealRandomValue ( 0, MTH_C_ZERO, MTH_C_ONE );
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xC3 = RND_fn_xGetRealRandomValue ( 0, MTH_C_ZERO, MTH_C_ONE );
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xC1 = MTH_M_xSub ( MTH_M_xSub ( MTH_C_ONE, xC2 ), xC3 );
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_p_stParticlePosition->xX = xC1*_p_stParticlesSource->stVertex1.xX + xC2*_p_stParticlesSource->stVertex2.xX + xC3*_p_stParticlesSource->stVertex3.xX;
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_p_stParticlePosition->xY = xC1*_p_stParticlesSource->stVertex1.xY + xC2*_p_stParticlesSource->stVertex2.xY + xC3*_p_stParticlesSource->stVertex3.xY;
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_p_stParticlePosition->xZ = xC1*_p_stParticlesSource->stVertex1.xZ + xC2*_p_stParticlesSource->stVertex2.xZ + xC3*_p_stParticlesSource->stVertex3.xZ;
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}
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else
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if ( _p_stParticlesSource->ucGeometryMode == PRT_C_ucParallelepipede )
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{
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/* genere les deux parametres */
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xC2 = RND_fn_xGetRealRandomValue ( 0, MTH_C_ZERO, MTH_C_ONE );
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xC3 = RND_fn_xGetRealRandomValue ( 0, MTH_C_ZERO, MTH_C_ONE );
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xC4 = RND_fn_xGetRealRandomValue ( 0, MTH_C_ZERO, MTH_C_ONE );
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xC1 = MTH_M_xSub ( MTH_M_xSub ( MTH_M_xSub ( MTH_C_ONE, xC2 ), xC3 ), xC4 );
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_p_stParticlePosition->xX = xC1*_p_stParticlesSource->stVertex1.xX + xC2*_p_stParticlesSource->stVertex2.xX + xC3*_p_stParticlesSource->stVertex3.xX + xC4*_p_stParticlesSource->stVertex4.xX;
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_p_stParticlePosition->xY = xC1*_p_stParticlesSource->stVertex1.xY + xC2*_p_stParticlesSource->stVertex2.xY + xC3*_p_stParticlesSource->stVertex3.xY + xC4*_p_stParticlesSource->stVertex4.xY;
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_p_stParticlePosition->xZ = xC1*_p_stParticlesSource->stVertex1.xZ + xC2*_p_stParticlesSource->stVertex2.xZ + xC3*_p_stParticlesSource->stVertex3.xZ + xC4*_p_stParticlesSource->stVertex4.xZ;
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}
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if ( _p_stParticlesSource->ucLinkMode == PRT_C_ucRotAndTransLink )
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{
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POS_fn_vMulMatrixVertex( _p_stParticlePosition, _p_stSourceMatrix, _p_stParticlePosition );
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}
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else
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if ( _p_stParticlesSource->ucLinkMode == PRT_C_ucTranslationLink )
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{
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POS_fn_vGetTranslationVector( _p_stSourceMatrix, &stTrans );
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MTH3D_M_vAddVector ( _p_stParticlePosition, &stTrans, _p_stParticlePosition );
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}
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else
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if ( _p_stParticlesSource->ucLinkMode == PRT_C_ucRotationLink )
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{
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POS_fn_vMulMatrixVector ( _p_stParticlePosition, _p_stSourceMatrix, _p_stParticlePosition );
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}
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/* BirthDate */
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/* p_stBubbleParticle->xBirthDate = xTimeT;*/
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}
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/*
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--------------------------------------------------------------------------------
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-- Description :
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--------------------------------------------------------------------------------
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-- Creation date : 12 jun 1997 Author : FPI
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--------------------------------------------------------------------------------
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*/
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void PRT_fn_vMecaPointParticlesSystem ( PRT_tdstParticlesSystem *_p_stParticlesSystem,
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PRT_tdstParticlesEnvironment *_p_stParticlesEnvironment,
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MTH_tdxReal _xTimeT,
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MTH_tdxReal _xDeltaT )
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{
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PRT_tdstPointParticle *p_stPointParticle;
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PRT_tdstPointParticle *p_stLastPointParticle;
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MTH3D_tdstVector *p_stParticlePosition;
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MTH3D_tdstVector *p_stLastParticlePosition;
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MTH3D_tdstVector *p_stParticleSpeed;
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MTH3D_tdstVector *p_stLastParticleSpeed;
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ACP_tdxBool bAlivedParticle;
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MTH3D_tdstVector stAccelerationVariation;
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p_stPointParticle = (PRT_tdstPointParticle *)(_p_stParticlesSystem->d_stListOfParticles);
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p_stLastPointParticle = p_stPointParticle + _p_stParticlesSystem->xNbActiveParticles;
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p_stParticlePosition = _p_stParticlesSystem->hParticlesSystemObject->d_stListOfPoints;
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p_stLastParticlePosition = p_stParticlePosition + _p_stParticlesSystem->xNbActiveParticles;
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p_stParticleSpeed = _p_stParticlesSystem->d_stSpeed;
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p_stLastParticleSpeed = p_stParticleSpeed + _p_stParticlesSystem->xNbActiveParticles;
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while ( p_stPointParticle != p_stLastPointParticle )
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{
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/* appliquer la meca */
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/* vecteur variation de l acceleration */
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MTH3D_M_vSetVectorElements ( &stAccelerationVariation,
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RND_fn_xGetRealRandomValue ( 0, MTH_M_xNeg ( _p_stParticlesEnvironment->xAccelerationRange ), _p_stParticlesEnvironment->xAccelerationRange ),
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RND_fn_xGetRealRandomValue ( 0, MTH_M_xNeg ( _p_stParticlesEnvironment->xAccelerationRange ), _p_stParticlesEnvironment->xAccelerationRange ),
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RND_fn_xGetRealRandomValue ( 0, MTH_M_xNeg ( _p_stParticlesEnvironment->xAccelerationRange ), _p_stParticlesEnvironment->xAccelerationRange ) );
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MTH3D_M_vAddVector ( &stAccelerationVariation, &(_p_stParticlesEnvironment->stAcceleration), &stAccelerationVariation );
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/* Vit t = f( Vit t-1, Pos t-1, Accel t ) */
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MTH3D_M_vMullAddVector ( p_stParticleSpeed, _xDeltaT, &stAccelerationVariation, p_stParticleSpeed );
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/* Pos t = f( Vit t, Pos t-1, Accel t ) */
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MTH3D_M_vMullAddVector ( p_stParticlePosition, _xDeltaT, p_stParticleSpeed, p_stParticlePosition );
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bAlivedParticle = ( _p_stParticlesEnvironment->ulEnvType == PRT_C_ulAlignedBoxEnv ) ?
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INT_fn_bGetInclusionPointInBox ( p_stParticlePosition,
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&(_p_stParticlesEnvironment->stMinPoint),
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&(_p_stParticlesEnvironment->stMaxPoint) ) :
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INT_fn_bGetInclusionPointInSphere ( p_stParticlePosition,
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&(_p_stParticlesEnvironment->stSphereCenter),
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_p_stParticlesEnvironment->xRadius );
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if ( bAlivedParticle )
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{
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p_stPointParticle ++;
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p_stParticlePosition ++;
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p_stParticleSpeed ++;
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}
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else
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{
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_p_stParticlesSystem->xNbActiveParticles --;
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p_stLastPointParticle --;
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if ( p_stPointParticle != p_stLastPointParticle )
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{
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*p_stPointParticle = *p_stLastPointParticle;
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p_stLastParticlePosition --;
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*p_stParticlePosition = *p_stLastParticlePosition;
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p_stLastParticleSpeed --;
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*p_stParticleSpeed = *p_stLastParticleSpeed;
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}
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}
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}
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}
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/*
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--------------------------------------------------------------------------------
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-- Description :
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--------------------------------------------------------------------------------
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-- Creation date : 12 jun 1997 Author : FPI
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--------------------------------------------------------------------------------
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*/
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void PRT_fn_vSourceGeneratePointParticle ( PRT_tdstParticlesSystem *_p_stParticlesSystem,
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PRT_tdstParticlesSource *_p_stParticlesSource,
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POS_tdstCompletePosition *_p_stSourceMatrix,
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MTH_tdxReal _xTimeT )
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{
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PRT_tdstPointParticle *p_stPointParticle;
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MTH3D_tdstVector *p_stParticlePosition;
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MTH3D_tdstVector *p_stParticleSpeed;
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ACP_tdxIndex xNbParticlesToInject;
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ACP_tdxIndex xIndex;
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/* generation de particules ? */
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if ( PRT_fn_bComputeParticlesGeneration ( _p_stParticlesSource ) )
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{
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/*ANNECY VL PRT 18/03/98{*/
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xNbParticlesToInject = (ACP_tdxIndex) MTH_M_xRealToLong ( MTH_M_xMul ( MTH_M_xLongToReal ( PRT_fn_xComputeNbParticlesToInject ( _p_stParticlesSource ) ), PRT_g_xNbParticlesFactor ) );
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/*ENDANNECY VL}*/
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if ( xNbParticlesToInject > 0 )
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{
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if ( _p_stParticlesSystem->xNbActiveParticles + xNbParticlesToInject > _p_stParticlesSystem->xNbParticles )
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{
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xNbParticlesToInject = _p_stParticlesSystem->xNbParticles - _p_stParticlesSystem->xNbActiveParticles;
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}
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p_stPointParticle = (PRT_tdstPointParticle *)(_p_stParticlesSystem->d_stListOfParticles) + _p_stParticlesSystem->xNbActiveParticles;
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p_stParticlePosition = _p_stParticlesSystem->hParticlesSystemObject->d_stListOfPoints + _p_stParticlesSystem->xNbActiveParticles;
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p_stParticleSpeed = _p_stParticlesSystem->d_stSpeed + _p_stParticlesSystem->xNbActiveParticles;
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_p_stParticlesSystem->xNbActiveParticles += xNbParticlesToInject;
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for ( xIndex = 0 ; xIndex < xNbParticlesToInject ; xIndex ++ )
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{
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/* reset meca */
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PRT_fn_vGeneratePointParticle ( p_stParticlePosition, p_stParticleSpeed,
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p_stPointParticle, (PRT_tdstPointCommonData *)(_p_stParticlesSystem->p_stCommonData),
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_p_stParticlesSource, _p_stSourceMatrix, _xTimeT );
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p_stPointParticle ++;
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p_stParticlePosition ++;
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p_stParticleSpeed ++;
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}
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}
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}
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}
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/*
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--------------------------------------------------------------------------------
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-- Description :
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--------------------------------------------------------------------------------
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-- Creation date : 12 jun 1997 Author : FPI
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--------------------------------------------------------------------------------
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*/
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void PRT_fn_vPreDrawPointParticlesSystem ( PRT_tdstParticlesSystem *_p_stParticlesSystem )
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{
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_p_stParticlesSystem->hParticlesSystemObject->xNbPoints = _p_stParticlesSystem->xNbActiveParticles;
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((GEO_tdstElementPoints *)(_p_stParticlesSystem->hParticlesSystemObject->d_stListOfElements[0]))->xNbPoints = _p_stParticlesSystem->xNbActiveParticles;
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}
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#endif /* D_THROW_PRT */
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