colobot/src/old/particule.cpp

// * This file is part of the COLOBOT source code
// * Copyright (C) 2001-2008, Daniel ROUX & EPSITEC SA, www.epsitec.ch
// *
// * This program is free software: you can redistribute it and/or modify
// * it under the terms of the GNU General Public License as published by
// * the Free Software Foundation, either version 3 of the License, or
// * (at your option) any later version.
// *
// * This program 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 General Public License for more details.
// *
// * You should have received a copy of the GNU General Public License
// * along with this program. If not, see  http://www.gnu.org/licenses/.

// particule.cpp


#include <windows.h>
#include <stdio.h>
#include <d3d.h>

#include "common/struct.h"
#include "math/const.h"
#include "math/geometry.h"
#include "math/conv.h"
#include "old/d3dmath.h"
#include "old/d3dtextr.h"
#include "old/d3dengine.h"
#include "old/d3dutil.h"
#include "common/language.h"
#include "common/iman.h"
#include "old/math3d.h"
#include "common/event.h"
#include "object/object.h"
#include "physics/physics.h"
#include "object/auto/auto.h"
#include "object/robotmain.h"
#include "old/terrain.h"
#include "old/sound.h"
#include "old/water.h"
#include "old/particule.h"



const float FOG_HSUP	= 10.0f;
const float FOG_HINF	= 100.0f;




// Check if an object can be destroyed, but is not an enemy.

bool IsSoft(ObjectType type)
{
	return ( type == OBJECT_HUMAN    ||
			 type == OBJECT_MOBILEfa ||
			 type == OBJECT_MOBILEta ||
			 type == OBJECT_MOBILEwa ||
			 type == OBJECT_MOBILEia ||
			 type == OBJECT_MOBILEfc ||
			 type == OBJECT_MOBILEtc ||
			 type == OBJECT_MOBILEwc ||
			 type == OBJECT_MOBILEic ||
			 type == OBJECT_MOBILEfi ||
			 type == OBJECT_MOBILEti ||
			 type == OBJECT_MOBILEwi ||
			 type == OBJECT_MOBILEii ||
			 type == OBJECT_MOBILEfs ||
			 type == OBJECT_MOBILEts ||
			 type == OBJECT_MOBILEws ||
			 type == OBJECT_MOBILEis ||
			 type == OBJECT_MOBILErt ||
			 type == OBJECT_MOBILErc ||
			 type == OBJECT_MOBILErr ||
			 type == OBJECT_MOBILErs ||
			 type == OBJECT_MOBILEsa ||
			 type == OBJECT_MOBILEft ||
			 type == OBJECT_MOBILEtt ||
			 type == OBJECT_MOBILEwt ||
			 type == OBJECT_MOBILEit ||
			 type == OBJECT_MOBILEdr ||  // robot?
			 type == OBJECT_METAL    ||
			 type == OBJECT_POWER    ||
			 type == OBJECT_ATOMIC   ||  // cargo?
			 type == OBJECT_DERRICK  ||
			 type == OBJECT_STATION  ||
			 type == OBJECT_FACTORY  ||
			 type == OBJECT_REPAIR   ||
			 type == OBJECT_DESTROYER||
			 type == OBJECT_CONVERT  ||
			 type == OBJECT_TOWER    ||
			 type == OBJECT_RESEARCH ||
			 type == OBJECT_RADAR    ||
			 type == OBJECT_INFO     ||
			 type == OBJECT_ENERGY   ||
			 type == OBJECT_LABO     ||
			 type == OBJECT_NUCLEAR  ||
			 type == OBJECT_PARA     );  // building?
}

// Check if an object is a destroyable enemy.

bool IsAlien(ObjectType type)
{
	return ( type == OBJECT_ANT      ||
			 type == OBJECT_SPIDER   ||
			 type == OBJECT_BEE      ||
			 type == OBJECT_WORM     ||
			 type == OBJECT_MOTHER   ||
			 type == OBJECT_NEST     ||
			 type == OBJECT_BULLET   ||
			 type == OBJECT_EGG      ||
			 type == OBJECT_MOBILEtg ||
			 type == OBJECT_TEEN28   ||
			 type == OBJECT_TEEN31   );
}

// Returns the damping factor for friendly fire.

float RetDecay(ObjectType type)
{
	if ( IsSoft(type) )  return 0.2f;
	return 1.0f;
}



// Application constructor.

CParticule::CParticule(CInstanceManager *iMan, CD3DEngine* engine)
{
	m_iMan = iMan;
	m_iMan->AddInstance(CLASS_PARTICULE, this);

	m_pD3DDevice = 0;
	m_engine = engine;
	m_main = 0;
	m_terrain = 0;
	m_water = 0;
	m_sound = 0;
	m_uniqueStamp = 0;
	m_exploGunCounter = 0;
	m_lastTimeGunDel = 0.0f;
	m_absTime = 0.0f;

	FlushParticule();
}

// Application destructor. Free memory.

CParticule::~CParticule()
{
	m_iMan->DeleteInstance(CLASS_PARTICULE, this);
}


void CParticule::SetD3DDevice(LPDIRECT3DDEVICE7 device)
{
	m_pD3DDevice = device;
}


// Removes all particles.

void CParticule::FlushParticule()
{
	int		i, j;

	for ( i=0 ; i<MAXPARTICULE*MAXPARTITYPE ; i++ )
	{
		m_particule[i].bUsed = false;
	}

	for ( i=0 ; i<MAXPARTITYPE ; i++ )
	{
		for ( j=0 ; j<SH_MAX ; j++ )
		{
			m_totalInterface[i][j] = 0;
		}
	}

	for ( i=0 ; i<MAXTRACK ; i++ )
	{
		m_track[i].bUsed = false;
	}

	m_wheelTraceTotal = 0;
	m_wheelTraceIndex = 0;

	for ( i=0 ; i<SH_MAX ; i++ )
	{
		m_bFrameUpdate[i] = true;
	}

	m_fogTotal = 0;
	m_exploGunCounter = 0;
}

// Removes all particles of a sheet.

void CParticule::FlushParticule(int sheet)
{
	int		i;

	for ( i=0 ; i<MAXPARTICULE*MAXPARTITYPE ; i++ )
	{
		if ( !m_particule[i].bUsed )  continue;
		if ( m_particule[i].sheet != sheet )  continue;

		m_particule[i].bUsed = false;
	}

	for ( i=0 ; i<MAXPARTITYPE ; i++ )
	{
		m_totalInterface[i][sheet] = 0;
	}

	for ( i=0 ; i<MAXTRACK ; i++ )
	{
		m_track[i].bUsed = false;
	}

	if ( sheet == SH_WORLD )
	{
		m_wheelTraceTotal = 0;
		m_wheelTraceIndex = 0;
	}
}


// Builds file name of the effect.
//	effectNN.tga, with NN = number

void NameParticule(char *buffer, int num)
{
	     if ( num == 1 )  strcpy(buffer, "effect00.tga");
	else if ( num == 2 )  strcpy(buffer, "effect01.tga");
	else if ( num == 3 )  strcpy(buffer, "effect02.tga");
#if _POLISH
	else if ( num == 4 )  strcpy(buffer, "textp.tga");
#else
	else if ( num == 4 )  strcpy(buffer, "text.tga");
#endif
	else                  strcpy(buffer, "xxx.tga");
}


// Creates a new particle.
// Returns the channel of the particle created or -1 on error.

int CParticule::CreateParticule(Math::Vector pos, Math::Vector speed, Math::Point dim,
								ParticuleType type,
								float duration, float mass,
								float windSensitivity, int sheet)
{
//?	float	dist;
	int		i, j, t;

	if ( m_main == 0 )
	{
		m_main = (CRobotMain*)m_iMan->SearchInstance(CLASS_MAIN);
	}

#if 0
	if ( sheet == SH_WORLD       &&
		 type != PARTISELY       &&
		 type != PARTISELR       &&
		 type != PARTIGUN1       &&
		 type != PARTIGUN2       &&
		 type != PARTIGUN3       &&
		 type != PARTIGUN4       &&
		 type != PARTIQUARTZ     &&
		 !m_main->RetMovieLock() )
	{
		dist = Math::Distance(pos, m_engine->RetEyePt());
		if ( dist > 300.0f )  return -1;
	}
#endif

	t = -1;
	if ( type == PARTIEXPLOT   ||
		 type == PARTIEXPLOO   ||
		 type == PARTIMOTOR    ||
		 type == PARTIBLITZ    ||
		 type == PARTICRASH    ||
		 type == PARTIVAPOR    ||
		 type == PARTIGAS      ||
		 type == PARTIBASE     ||
		 type == PARTIFIRE     ||
		 type == PARTIFIREZ    ||
		 type == PARTIBLUE     ||
		 type == PARTIROOT     ||
		 type == PARTIRECOVER  ||
		 type == PARTIEJECT    ||
		 type == PARTISCRAPS   ||
		 type == PARTIGUN2     ||
		 type == PARTIGUN3     ||
		 type == PARTIGUN4     ||
		 type == PARTIQUEUE    ||
		 type == PARTIORGANIC1 ||
		 type == PARTIORGANIC2 ||
		 type == PARTIFLAME    ||
		 type == PARTIBUBBLE   ||
		 type == PARTIERROR    ||
		 type == PARTIWARNING  ||
		 type == PARTIINFO     ||
		 type == PARTISPHERE1  ||
		 type == PARTISPHERE2  ||
		 type == PARTISPHERE4  ||
		 type == PARTISPHERE5  ||
		 type == PARTISPHERE6  ||
		 type == PARTIPLOUF0   ||
		 type == PARTITRACK1   ||
		 type == PARTITRACK2   ||
		 type == PARTITRACK3   ||
		 type == PARTITRACK4   ||
		 type == PARTITRACK5   ||
		 type == PARTITRACK6   ||
		 type == PARTITRACK7   ||
		 type == PARTITRACK8   ||
		 type == PARTITRACK9   ||
		 type == PARTITRACK10  ||
		 type == PARTITRACK11  ||
		 type == PARTITRACK12  ||
		 type == PARTILENS1    ||
		 type == PARTILENS2    ||
		 type == PARTILENS3    ||
		 type == PARTILENS4    ||
		 type == PARTIGFLAT    ||
		 type == PARTIDROP     ||
		 type == PARTIWATER    ||
		 type == PARTILIMIT1   ||
		 type == PARTILIMIT2   ||
		 type == PARTILIMIT3   ||
		 type == PARTILIMIT4   ||
		 type == PARTIEXPLOG1  ||
		 type == PARTIEXPLOG2  )
	{
		t = 1;  // effect00
	}
	if ( type == PARTIGLINT   ||
		 type == PARTIGLINTb  ||
		 type == PARTIGLINTr  ||
		 type == PARTITOTO    ||
		 type == PARTISELY    ||
		 type == PARTISELR    ||
		 type == PARTIQUARTZ  ||
		 type == PARTIGUNDEL  ||
		 type == PARTICONTROL ||
		 type == PARTISHOW    ||
		 type == PARTICHOC    ||
		 type == PARTIFOG4    ||
		 type == PARTIFOG5    ||
		 type == PARTIFOG6    ||
		 type == PARTIFOG7    )
	{
		t = 2;  // effect01
	}
	if ( type == PARTIGUN1    ||
		 type == PARTIFLIC    ||
		 type == PARTISPHERE0 ||
		 type == PARTISPHERE3 ||
		 type == PARTIFOG0    ||
		 type == PARTIFOG1    ||
		 type == PARTIFOG2    ||
		 type == PARTIFOG3    )
	{
		t = 3;  // effect02
	}
	if ( type == PARTISMOKE1  ||
		 type == PARTISMOKE2  ||
		 type == PARTISMOKE3  ||
		 type == PARTIBLOOD   ||
		 type == PARTIBLOODM  ||
		 type == PARTIVIRUS1  ||
		 type == PARTIVIRUS2  ||
		 type == PARTIVIRUS3  ||
		 type == PARTIVIRUS4  ||
		 type == PARTIVIRUS5  ||
		 type == PARTIVIRUS6  ||
		 type == PARTIVIRUS7  ||
		 type == PARTIVIRUS8  ||
		 type == PARTIVIRUS9  ||
		 type == PARTIVIRUS10 )
	{
		t = 4;  // text (D3DSTATETTw)
	}
	if ( t >= MAXPARTITYPE )  return -1;
	if ( t == -1 )  return -1;

	for ( j=0 ; j<MAXPARTICULE ; j++ )
	{
		i = MAXPARTICULE*t+j;

		if ( !m_particule[i].bUsed )
		{
			ZeroMemory(&m_particule[i], sizeof(Particule));
			m_particule[i].bUsed     = true;
			m_particule[i].bRay      = false;
			m_particule[i].uniqueStamp = m_uniqueStamp++;
			m_particule[i].sheet     = sheet;
			m_particule[i].mass      = mass;
			m_particule[i].duration  = duration;
			m_particule[i].pos       = pos;
			m_particule[i].goal      = pos;
			m_particule[i].speed     = speed;
			m_particule[i].windSensitivity = windSensitivity;
			m_particule[i].dim       = dim;
			m_particule[i].zoom      = 1.0f;
			m_particule[i].angle     = 0.0f;
			m_particule[i].intensity = 1.0f;
			m_particule[i].type      = type;
			m_particule[i].phase     = PARPHSTART;
			m_particule[i].texSup.x  = 0.0f;
			m_particule[i].texSup.y  = 0.0f;
			m_particule[i].texInf.x  = 0.0f;
			m_particule[i].texInf.y  = 0.0f;
			m_particule[i].time      = 0.0f;
			m_particule[i].phaseTime = 0.0f;
			m_particule[i].testTime  = 0.0f;
			m_particule[i].objLink   = 0;
			m_particule[i].objFather = 0;
			m_particule[i].trackRank = -1;

			m_totalInterface[t][sheet] ++;

			if ( type == PARTIEXPLOT ||
				 type == PARTIEXPLOO )
			{
				m_particule[i].angle = Math::Rand()*Math::PI*2.0f;
			}

			if ( type == PARTIGUN1 ||
				 type == PARTIGUN4 )
			{
				m_particule[i].testTime = 1.0f;  // impact immediately
			}

			if ( type >= PARTIFOG0 &&
				 type <= PARTIFOG9 )
			{
				if ( m_fogTotal < MAXPARTIFOG )
				m_fog[m_fogTotal++] = i;
			}

			return i | ((m_particule[i].uniqueStamp&0xffff)<<16);
		}
	}

	return -1;
}

// Creates a new triangular particle (debris).
// Returns the channel of the particle created or -1 on error.

int CParticule::CreateFrag(Math::Vector pos, Math::Vector speed,
						   D3DTriangle *triangle,
						   ParticuleType type,
						   float duration, float mass,
						   float windSensitivity, int sheet)
{
	Math::Vector	p1, p2, p3, n;
	float		l1, l2, l3, dx, dy;
	int			i, j, t;

	t = 0;
	for ( j=0 ; j<MAXPARTICULE ; j++ )
	{
		i = MAXPARTICULE*t+j;

		if ( !m_particule[i].bUsed )
		{
			ZeroMemory(&m_particule[i], sizeof(Particule));
			m_particule[i].bUsed     = true;
			m_particule[i].bRay      = false;
			m_particule[i].uniqueStamp = m_uniqueStamp++;
			m_particule[i].sheet     = sheet;
			m_particule[i].mass      = mass;
			m_particule[i].duration  = duration;
			m_particule[i].pos       = pos;
			m_particule[i].goal      = pos;
			m_particule[i].speed     = speed;
			m_particule[i].windSensitivity = windSensitivity;
			m_particule[i].zoom      = 1.0f;
			m_particule[i].angle     = 0.0f;
			m_particule[i].intensity = 1.0f;
			m_particule[i].type      = type;
			m_particule[i].phase     = PARPHSTART;
			m_particule[i].texSup.x  = 0.0f;
			m_particule[i].texSup.y  = 0.0f;
			m_particule[i].texInf.x  = 0.0f;
			m_particule[i].texInf.y  = 0.0f;
			m_particule[i].time      = 0.0f;
			m_particule[i].phaseTime = 0.0f;
			m_particule[i].testTime  = 0.0f;
			m_particule[i].objLink   = 0;
			m_particule[i].objFather = 0;
			m_particule[i].trackRank = -1;
			m_triangle[i] = *triangle;

			m_totalInterface[t][sheet] ++;

			p1.x = m_triangle[i].triangle[0].x;
			p1.y = m_triangle[i].triangle[0].y;
			p1.z = m_triangle[i].triangle[0].z;

			p2.x = m_triangle[i].triangle[1].x;
			p2.y = m_triangle[i].triangle[1].y;
			p2.z = m_triangle[i].triangle[1].z;

			p3.x = m_triangle[i].triangle[2].x;
			p3.y = m_triangle[i].triangle[2].y;
			p3.z = m_triangle[i].triangle[2].z;

			l1 = Math::Distance(p1, p2);
			l2 = Math::Distance(p2, p3);
			l3 = Math::Distance(p3, p1);
			dx = fabs(Math::Min(l1, l2, l3))*0.5f;
			dy = fabs(Math::Max(l1, l2, l3))*0.5f;
			p1 = Math::Vector(-dx,  dy, 0.0f);
			p2 = Math::Vector( dx,  dy, 0.0f);
			p3 = Math::Vector(-dx, -dy, 0.0f);

			m_triangle[i].triangle[0].x = p1.x;
			m_triangle[i].triangle[0].y = p1.y;
			m_triangle[i].triangle[0].z = p1.z;

			m_triangle[i].triangle[1].x = p2.x;
			m_triangle[i].triangle[1].y = p2.y;
			m_triangle[i].triangle[1].z = p2.z;

			m_triangle[i].triangle[2].x = p3.x;
			m_triangle[i].triangle[2].y = p3.y;
			m_triangle[i].triangle[2].z = p3.z;

			n = Math::Vector(0.0f, 0.0f, -1.0f);

			m_triangle[i].triangle[0].nx = n.x;
			m_triangle[i].triangle[0].ny = n.y;
			m_triangle[i].triangle[0].nz = n.z;

			m_triangle[i].triangle[1].nx = n.x;
			m_triangle[i].triangle[1].ny = n.y;
			m_triangle[i].triangle[1].nz = n.z;

			m_triangle[i].triangle[2].nx = n.x;
			m_triangle[i].triangle[2].ny = n.y;
			m_triangle[i].triangle[2].nz = n.z;

			if ( type == PARTIFRAG )
			{
				m_particule[i].angle = Math::Rand()*Math::PI*2.0f;
			}
			return i | ((m_particule[i].uniqueStamp&0xffff)<<16);
		}
	}

	return -1;
}

// Creates a new particle being a part of object.
// Returns the channel of the particle created or -1 on error.

int CParticule::CreatePart(Math::Vector pos, Math::Vector speed,
						   ParticuleType type,
						   float duration, float mass, float weight,
						   float windSensitivity, int sheet)
{
	int			i, j, t;

	t = 0;
	for ( j=0 ; j<MAXPARTICULE ; j++ )
	{
		i = MAXPARTICULE*t+j;

		if ( !m_particule[i].bUsed )
		{
			ZeroMemory(&m_particule[i], sizeof(Particule));
			m_particule[i].bUsed     = true;
			m_particule[i].bRay      = false;
			m_particule[i].uniqueStamp = m_uniqueStamp++;
			m_particule[i].sheet     = sheet;
			m_particule[i].mass      = mass;
			m_particule[i].weight    = weight;
			m_particule[i].duration  = duration;
			m_particule[i].pos       = pos;
			m_particule[i].goal      = pos;
			m_particule[i].speed     = speed;
			m_particule[i].windSensitivity = windSensitivity;
			m_particule[i].zoom      = 1.0f;
			m_particule[i].angle     = 0.0f;
			m_particule[i].intensity = 1.0f;
			m_particule[i].type      = type;
			m_particule[i].phase     = PARPHSTART;
			m_particule[i].texSup.x  = 0.0f;
			m_particule[i].texSup.y  = 0.0f;
			m_particule[i].texInf.x  = 0.0f;
			m_particule[i].texInf.y  = 0.0f;
			m_particule[i].time      = 0.0f;
			m_particule[i].phaseTime = 0.0f;
			m_particule[i].testTime  = 0.0f;
			m_particule[i].trackRank = -1;

			m_totalInterface[t][sheet] ++;

			return i | ((m_particule[i].uniqueStamp&0xffff)<<16);
		}
	}

	return -1;
}

// Creates a new linear particle (radius).
// Returns the channel of the particle created or -1 on error.

int CParticule::CreateRay(Math::Vector pos, Math::Vector goal,
						  ParticuleType type, Math::Point dim,
						  float duration, int sheet)
{
	int		i, j, t;

	t = -1;
	if ( type == PARTIRAY1 ||
		 type == PARTIRAY2 ||
		 type == PARTIRAY3 ||
		 type == PARTIRAY4 )
	{
		t = 3;  // effect02
	}
	if ( t >= MAXPARTITYPE )  return -1;
	if ( t == -1 )  return -1;

	for ( j=0 ; j<MAXPARTICULE ; j++ )
	{
		i = MAXPARTICULE*t+j;

		if ( !m_particule[i].bUsed )
		{
			ZeroMemory(&m_particule[i], sizeof(Particule));
			m_particule[i].bUsed     = true;
			m_particule[i].bRay      = true;
			m_particule[i].uniqueStamp = m_uniqueStamp++;
			m_particule[i].sheet     = sheet;
			m_particule[i].mass      = 0.0f;
			m_particule[i].duration  = duration;
			m_particule[i].pos       = pos;
			m_particule[i].goal      = goal;
			m_particule[i].speed     = Math::Vector(0.0f, 0.0f, 0.0f);
			m_particule[i].windSensitivity = 0.0f;
			m_particule[i].dim       = dim;
			m_particule[i].zoom      = 1.0f;
			m_particule[i].angle     = 0.0f;
			m_particule[i].intensity = 1.0f;
			m_particule[i].type      = type;
			m_particule[i].phase     = PARPHSTART;
			m_particule[i].texSup.x  = 0.0f;
			m_particule[i].texSup.y  = 0.0f;
			m_particule[i].texInf.x  = 0.0f;
			m_particule[i].texInf.y  = 0.0f;
			m_particule[i].time      = 0.0f;
			m_particule[i].phaseTime = 0.0f;
			m_particule[i].testTime  = 0.0f;
			m_particule[i].objLink   = 0;
			m_particule[i].objFather = 0;
			m_particule[i].trackRank = -1;

			m_totalInterface[t][sheet] ++;

			return i | ((m_particule[i].uniqueStamp&0xffff)<<16);
		}
	}

	return -1;
}

// Creates a particle with a trail.
// "length" is the length of the tail of drag (in seconds)!

int CParticule::CreateTrack(Math::Vector pos, Math::Vector speed, Math::Point dim,
							ParticuleType type, float duration, float mass,
							float length, float width)
{
	int		channel, rank, i;

	// Creates the normal particle.
	channel = CreateParticule(pos, speed, dim, type, duration, mass, 0.0f, 0);
	if ( channel == -1 )  return -1;

	// Seeks a streak free.
	for ( i=0 ; i<MAXTRACK ; i++ )
	{
		if ( !m_track[i].bUsed )  // free?
		{
			rank = channel;
			if ( !CheckChannel(rank) )  return -1;
			m_particule[rank].trackRank = i;

			m_track[i].bUsed = true;
			m_track[i].step = (length/duration)/MAXTRACKLEN;
			m_track[i].last = 0.0f;
			m_track[i].intensity = 1.0f;
			m_track[i].width = width;
			m_track[i].used = 1;
			m_track[i].head = 0;
			m_track[i].pos[0] = pos;
			break;
		}
	}

	return channel;
}

// Creates a tire mark.

void CParticule::CreateWheelTrace(const Math::Vector &p1, const Math::Vector &p2,
								  const Math::Vector &p3, const Math::Vector &p4,
								  ParticuleType type)
{
	int		i, max;

//?	max = (int)(m_engine->RetWheelTraceQuantity()*MAXWHEELTRACE);
	max = MAXWHEELTRACE;
	i = m_wheelTraceIndex++;
	if ( m_wheelTraceIndex > max )  m_wheelTraceIndex = 0;

	m_wheelTrace[i].type = type;
	m_wheelTrace[i].pos[0] = p1;  // ul
	m_wheelTrace[i].pos[1] = p2;  // dl
	m_wheelTrace[i].pos[2] = p3;  // ur
	m_wheelTrace[i].pos[3] = p4;  // dr
	m_wheelTrace[i].startTime = m_absTime;

	if ( m_terrain == 0 )
	{
		m_terrain = (CTerrain*)m_iMan->SearchInstance(CLASS_TERRAIN);
	}

	m_terrain->MoveOnFloor(m_wheelTrace[i].pos[0]);
	m_wheelTrace[i].pos[0].y += 0.2f;  // just above the ground

	m_terrain->MoveOnFloor(m_wheelTrace[i].pos[1]);
	m_wheelTrace[i].pos[1].y += 0.2f;  // just above the ground

	m_terrain->MoveOnFloor(m_wheelTrace[i].pos[2]);
	m_wheelTrace[i].pos[2].y += 0.2f;  // just above the ground

	m_terrain->MoveOnFloor(m_wheelTrace[i].pos[3]);
	m_wheelTrace[i].pos[3].y += 0.2f;  // just above the ground

	if ( m_wheelTraceTotal < max )
	{
		m_wheelTraceTotal ++;
	}
	else
	{
		m_wheelTraceTotal = max;
	}
}


// Check a channel number.
// Adapts the channel so it can be used as an offset in m_particule.

bool CParticule::CheckChannel(int &channel)
{
	int		uniqueStamp;

	uniqueStamp = (channel>>16)&0xffff;
	channel &= 0xffff;

	if ( channel < 0 )  return false;
	if ( channel >= MAXPARTICULE*MAXPARTITYPE )  return false;
#if 0
	if ( !m_particule[channel].bUsed )  return false;

	if ( m_particule[channel].uniqueStamp != uniqueStamp )  return false;
#else
	if ( !m_particule[channel].bUsed )
	{
		OutputDebugString("CheckChannel bUsed=false !\n");
		return false;
	}

	if ( m_particule[channel].uniqueStamp != uniqueStamp )
	{
		OutputDebugString("CheckChannel uniqueStamp !\n");
		return false;
	}
#endif

	return true;
}

// Removes a particle after his rank.

void CParticule::DeleteRank(int rank)
{
	int		i;

	if ( m_totalInterface[rank/MAXPARTICULE][m_particule[rank].sheet] > 0 )
	{
		m_totalInterface[rank/MAXPARTICULE][m_particule[rank].sheet] --;
	}

	i = m_particule[rank].trackRank;
	if ( i != -1 )  // drag associated?
	{
		m_track[i].bUsed = false;  // frees the drag
	}

	m_particule[rank].bUsed = false;
}

// Removes all particles of a given type.

void CParticule::DeleteParticule(ParticuleType type)
{
	int		i;

	for ( i=0 ; i<MAXPARTICULE*MAXPARTITYPE ; i++ )
	{
		if ( !m_particule[i].bUsed )  continue;
		if ( m_particule[i].type != type )  continue;

		DeleteRank(i);
	}
}

// Removes all particles of a given channel.

void CParticule::DeleteParticule(int channel)
{
	int		i;

	if ( !CheckChannel(channel) )  return;

	if ( m_totalInterface[channel/MAXPARTICULE][m_particule[channel].sheet] > 0 )
	{
		m_totalInterface[channel/MAXPARTICULE][m_particule[channel].sheet] --;
	}

	i = m_particule[channel].trackRank;
	if ( i != -1 )  // drag associated?
	{
		m_track[i].bUsed = false;  // frees the drag
	}

	m_particule[channel].bUsed = false;
}


// Specifies the object to which the particle is bound.

void CParticule::SetObjectLink(int channel, CObject *object)
{
	if ( !CheckChannel(channel) )  return;
	m_particule[channel].objLink = object;
}

// Specifies the parent object that created the particle.

void CParticule::SetObjectFather(int channel, CObject *object)
{
	if ( !CheckChannel(channel) )  return;
	m_particule[channel].objFather = object;
}

void CParticule::SetPosition(int channel, Math::Vector pos)
{
	if ( !CheckChannel(channel) )  return;
	m_particule[channel].pos = pos;
}

void CParticule::SetDimension(int channel, Math::Point dim)
{
	if ( !CheckChannel(channel) )  return;
	m_particule[channel].dim = dim;
}

void CParticule::SetZoom(int channel, float zoom)
{
	if ( !CheckChannel(channel) )  return;
	m_particule[channel].zoom = zoom;
}

void CParticule::SetAngle(int channel, float angle)
{
	if ( !CheckChannel(channel) )  return;
	m_particule[channel].angle = angle;
}

void CParticule::SetIntensity(int channel, float intensity)
{
	if ( !CheckChannel(channel) )  return;
	m_particule[channel].intensity = intensity;
}

void CParticule::SetParam(int channel, Math::Vector pos, Math::Point dim, float zoom,
						  float angle, float intensity)
{
	if ( !CheckChannel(channel) )  return;
	m_particule[channel].pos       = pos;
	m_particule[channel].dim       = dim;
	m_particule[channel].zoom      = zoom;
	m_particule[channel].angle     = angle;
	m_particule[channel].intensity = intensity;
}

void CParticule::SetPhase(int channel, ParticulePhase phase, float duration)
{
	if ( !CheckChannel(channel) )  return;
	m_particule[channel].phase = phase;
	m_particule[channel].duration = duration;
	m_particule[channel].phaseTime = m_particule[channel].time;
}

// Returns the position of the particle.

bool CParticule::GetPosition(int channel, Math::Vector &pos)
{
	if ( !CheckChannel(channel) )  return false;
	pos = m_particule[channel].pos;
	return true;
}


// Indicates whether a sheet evolves or not.

void CParticule::SetFrameUpdate(int sheet, bool bUpdate)
{
	m_bFrameUpdate[sheet] = bUpdate;
}

// Makes evolve all the particles.

void CParticule::FrameParticule(float rTime)
{
	CObject*	object;
	Math::Vector	eye, pos, speed, wind;
	Math::Point		ts, ti, dim;
	bool		bPause;
	float		progress, dp, h, duration, mass, amplitude;
	int			i, j, r, total;

	if ( m_main == 0 )
	{
		m_main = (CRobotMain*)m_iMan->SearchInstance(CLASS_MAIN);
	}

	bPause = ( m_engine->RetPause() && !m_main->RetInfoLock() );

	if ( m_terrain == 0 )
	{
		m_terrain = (CTerrain*)m_iMan->SearchInstance(CLASS_TERRAIN);
	}
	if ( m_water == 0 )
	{
		m_water = (CWater*)m_iMan->SearchInstance(CLASS_WATER);
	}

	if ( !bPause )
	{
		m_lastTimeGunDel += rTime;
		m_absTime += rTime;
	}

	wind = m_terrain->RetWind();
	eye = m_engine->RetEyePt();

	for ( i=0 ; i<MAXPARTICULE*MAXPARTITYPE ; i++ )
	{
		if ( !m_particule[i].bUsed )  continue;
		if ( !m_bFrameUpdate[m_particule[i].sheet] )  continue;

		if ( m_particule[i].type != PARTISHOW )
		{
			if ( bPause && m_particule[i].sheet != SH_INTERFACE )  continue;
		}

		if ( m_particule[i].type != PARTIQUARTZ )
		{
			m_particule[i].pos += m_particule[i].speed*rTime;
		}

		if ( m_particule[i].sheet == SH_WORLD )
		{
			h = rTime*m_particule[i].windSensitivity*Math::Rand()*2.0f;
			m_particule[i].pos += wind*h;
		}

		progress = (m_particule[i].time-m_particule[i].phaseTime)/m_particule[i].duration;

		// Manages the particles with mass that bounce.
		if ( m_particule[i].mass != 0.0f        &&
			 m_particule[i].type != PARTIQUARTZ )
		{
			m_particule[i].speed.y -= m_particule[i].mass*rTime;

			if ( m_particule[i].sheet == SH_INTERFACE )
			{
				h = 0.0f;
			}
			else
			{
				h = m_terrain->RetFloorLevel(m_particule[i].pos, true);
			}
			h += m_particule[i].dim.y*0.75f;
			if ( m_particule[i].pos.y < h )  // impact with the ground?
			{
				if ( m_particule[i].type == PARTIPART &&
					 m_particule[i].weight > 3.0f &&  // heavy enough?
					 m_particule[i].bounce < 3 )
				{
					amplitude = m_particule[i].weight*0.1f;
					amplitude *= 1.0f-0.3f*m_particule[i].bounce;
					if ( amplitude > 1.0f )  amplitude = 1.0f;
					if ( amplitude > 0.0f )
					{
						Play(SOUND_BOUM, m_particule[i].pos, amplitude);
					}
				}

				if ( m_particule[i].bounce < 3 )
				{
					m_particule[i].pos.y = h;
					m_particule[i].speed.y *= -0.4f;
					m_particule[i].speed.x *=  0.4f;
					m_particule[i].speed.z *=  0.4f;
					m_particule[i].bounce ++;  // more impact
				}
				else	// disappears after 3 bounces?
				{
					if ( m_particule[i].pos.y < h-10.0f ||
						 m_particule[i].time >= 20.0f   )
					{
						DeleteRank(i);
						continue;
					}
				}
			}
		}

		// Manages drag associated.
		r = m_particule[i].trackRank;
		if ( r != -1 )  // drag exists?
		{
			if ( TrackMove(r, m_particule[i].pos, progress) )
			{
				DeleteRank(i);
				continue;
			}

			m_track[r].bDrawParticule = (progress < 1.0f);
		}

		if ( m_particule[i].type == PARTITRACK1 )  // explosion technique?
		{
			m_particule[i].zoom = 1.0f-(m_particule[i].time-m_particule[i].duration);

			ts.x = 0.375f;
			ts.y = 0.000f;
			ti.x = ts.x+0.125f;
			ti.y = ts.y+0.125f;
		}

		if ( m_particule[i].type == PARTITRACK2 )  // spray blue?
		{
			m_particule[i].zoom = 1.0f-(m_particule[i].time-m_particule[i].duration);

			ts.x = 0.500f;
			ts.y = 0.000f;
			ti.x = ts.x+0.125f;
			ti.y = ts.y+0.125f;
		}

		if ( m_particule[i].type == PARTITRACK3 )  // spider?
		{
			m_particule[i].zoom = 1.0f-(m_particule[i].time-m_particule[i].duration);

			ts.x = 0.500f;
			ts.y = 0.750f;
			ti.x = ts.x+0.125f;
			ti.y = ts.y+0.125f;
		}

		if ( m_particule[i].type == PARTITRACK4 )  // insect explosion?
		{
			m_particule[i].zoom = 1.0f-(m_particule[i].time-m_particule[i].duration);

			ts.x = 0.625f;
			ts.y = 0.000f;
			ti.x = ts.x+0.125f;
			ti.y = ts.y+0.125f;
		}

		if ( m_particule[i].type == PARTITRACK5 )  // derrick?
		{
			m_particule[i].zoom = 1.0f-(m_particule[i].time-m_particule[i].duration);

			ts.x = 0.750f;
			ts.y = 0.000f;
			ti.x = ts.x+0.125f;
			ti.y = ts.y+0.125f;
		}

		if ( m_particule[i].type == PARTITRACK6 )  // reset in/out?
		{
			ts.x = 0.0f;
			ts.y = 0.0f;
			ti.x = 0.0f;
			ti.y = 0.0f;
		}

		if ( m_particule[i].type == PARTITRACK7  ||  // win-1 ?
			 m_particule[i].type == PARTITRACK8  ||  // win-2 ?
			 m_particule[i].type == PARTITRACK9  ||  // win-3 ?
			 m_particule[i].type == PARTITRACK10 )   // win-4 ?
		{
			m_particule[i].zoom = 1.0f-(m_particule[i].time-m_particule[i].duration);

			ts.x = 0.25f*(m_particule[i].type-PARTITRACK7);
			ts.y = 0.25f;
			ti.x = ts.x+0.25f;
			ti.y = ts.y+0.25f;
		}

		if ( m_particule[i].type == PARTITRACK11 )  // phazer shot?
		{
			object = SearchObjectGun(m_particule[i].goal, m_particule[i].pos, m_particule[i].type, m_particule[i].objFather);
			m_particule[i].goal = m_particule[i].pos;
			if ( object != 0 )
			{
				if ( object->RetType() == OBJECT_MOTHER )
				{
					object->ExploObject(EXPLO_BOUM, 0.1f);
				}
				else
				{
					object->ExploObject(EXPLO_BOUM, 0.0f, RetDecay(object->RetType()));
				}
			}

			m_particule[i].zoom = 1.0f-(m_particule[i].time-m_particule[i].duration);

			ts.x = 0.375f;
			ts.y = 0.000f;
			ti.x = ts.x+0.125f;
			ti.y = ts.y+0.125f;
		}

		if ( m_particule[i].type == PARTITRACK12 )  // drag reactor?
		{
			m_particule[i].zoom = 1.0f;

			ts.x = 0.375f;
			ts.y = 0.000f;
			ti.x = ts.x+0.125f;
			ti.y = ts.y+0.125f;
		}

		if ( m_particule[i].type == PARTIMOTOR )
		{
			if ( progress >= 1.0f )
			{
				DeleteRank(i);
				continue;
			}

			m_particule[i].zoom = 1.0f-progress;
			m_particule[i].intensity = 1.0f-progress;

			ts.x = 0.000f;
			ts.y = 0.750f;
			ti.x = ts.x+0.125f;
			ti.y = ts.y+0.125f;
		}

		if ( m_particule[i].type == PARTIBLITZ )
		{
			if ( progress >= 1.0f )
			{
				DeleteRank(i);
				continue;
			}

			m_particule[i].zoom = 1.0f-progress;
			m_particule[i].angle = Math::Rand()*Math::PI*2.0f;

			ts.x = 0.125f;
			ts.y = 0.750f;
			ti.x = ts.x+0.125f;
			ti.y = ts.y+0.125f;
		}

		if ( m_particule[i].type == PARTICRASH )
		{
			if ( progress >= 1.0f )
			{
				DeleteRank(i);
				continue;
			}

//?			m_particule[i].intensity = 1.0f-progress;
			if ( progress < 0.25f )
			{
				m_particule[i].zoom = progress/0.25f;
			}
			else
			{
				m_particule[i].intensity = 1.0f-(progress-0.25f)/0.75f;
			}

//?			ts.x = 0.250f;
			ts.x = 0.000f;
//?			ts.x = 0.375f;
			ts.y = 0.750f;
			ti.x = ts.x+0.125f;
			ti.y = ts.y+0.125f;
		}

		if ( m_particule[i].type == PARTIVAPOR )
		{
			if ( progress >= 1.0f )
			{
				DeleteRank(i);
				continue;
			}

			m_particule[i].intensity = 1.0f-progress;
			m_particule[i].zoom = 1.0f+progress*3.0f;

			ts.x = 0.000f;
			ts.y = 0.750f;
			ti.x = ts.x+0.125f;
			ti.y = ts.y+0.125f;
		}

		if ( m_particule[i].type == PARTIGAS )
		{
			if ( progress >= 1.0f )
			{
				DeleteRank(i);
				continue;
			}

			m_particule[i].zoom = 1.0f-progress;

			ts.x = 0.375f;
			ts.y = 0.750f;
			ti.x = ts.x+0.125f;
			ti.y = ts.y+0.125f;
		}

		if ( m_particule[i].type == PARTIBASE )
		{
			if ( progress >= 1.0f )
			{
				DeleteRank(i);
				continue;
			}

			m_particule[i].zoom = 1.0f+progress*7.0f;
			m_particule[i].intensity = powf(1.0f-progress, 3.0f);

			ts.x = 0.375f;
			ts.y = 0.750f;
			ti.x = ts.x+0.125f;
			ti.y = ts.y+0.125f;
		}

		if ( m_particule[i].type == PARTIFIRE  ||
			 m_particule[i].type == PARTIFIREZ )
		{
			if ( progress >= 1.0f )
			{
				DeleteRank(i);
				continue;
			}

			if ( m_particule[i].type == PARTIFIRE )
			{
				m_particule[i].zoom = 1.0f-progress;
			}
			else
			{
				m_particule[i].zoom = progress;
			}

			ts.x = 0.500f;
			ts.y = 0.750f;
			ti.x = ts.x+0.125f;
			ti.y = ts.y+0.125f;
		}

		if ( m_particule[i].type == PARTIGUN1 )  // fireball shot?
		{
			if ( progress >= 1.0f )
			{
				DeleteRank(i);
				continue;
			}

			if ( m_particule[i].testTime >= 0.1f )
			{
				m_particule[i].testTime = 0.0f;

				if ( m_terrain->RetFloorHeight(m_particule[i].pos, true) < -2.0f )
				{
					m_exploGunCounter ++;

					if ( m_exploGunCounter%2 == 0 )
					{
						pos = m_particule[i].goal;
						m_terrain->MoveOnFloor(pos, true);
						speed.x = 0.0f;
						speed.z = 0.0f;
						speed.y = 0.0f;
						dim.x = Math::Rand()*6.0f+6.0f;
						dim.y = dim.x;
						duration = Math::Rand()*1.0f+1.0f;
						mass = 0.0f;
						CreateParticule(pos, speed, dim, PARTIEXPLOG1, duration, mass, 1.0f);
						
						pos.y += 1.0f;
						total = (int)(2.0f*m_engine->RetParticuleDensity());
						for ( j=0 ; j<total ; j++ )
						{
							speed.x = (Math::Rand()-0.5f)*20.0f;
							speed.z = (Math::Rand()-0.5f)*20.0f;
							speed.y = Math::Rand()*20.0f;
							dim.x = 1.0f;
							dim.y = dim.x;
							duration = Math::Rand()*1.0f+1.0f;
							mass = Math::Rand()*10.0f+15.0f;
							CreateParticule(pos, speed, dim, PARTIEXPLOG1, duration, mass, 1.0f);
						}
					}

					if ( m_exploGunCounter%4 == 0 )
					{
						Play(SOUND_EXPLOg1, pos, 0.5f);
					}

					DeleteRank(i);
					continue;
				}

				object = SearchObjectGun(m_particule[i].goal, m_particule[i].pos, m_particule[i].type, m_particule[i].objFather);
				m_particule[i].goal = m_particule[i].pos;
				if ( object != 0 )
				{
					object->ExploObject(EXPLO_BURN, 0.0f, RetDecay(object->RetType()));

					m_exploGunCounter ++;

					if ( m_exploGunCounter%2 == 0 )
					{
						pos = m_particule[i].pos;
						speed.x = 0.0f;
						speed.z = 0.0f;
						speed.y = 0.0f;
						dim.x = Math::Rand()*6.0f+6.0f;
						dim.y = dim.x;
						duration = Math::Rand()*1.0f+1.0f;
						mass = 0.0f;
						CreateParticule(pos, speed, dim, PARTIEXPLOG1, duration, mass, 1.0f);
						
						pos.y += 1.0f;
						total = (int)(2.0f*m_engine->RetParticuleDensity());
						for ( j=0 ; j<total ; j++ )
						{
							speed.x = (Math::Rand()-0.5f)*20.0f;
							speed.z = (Math::Rand()-0.5f)*20.0f;
							speed.y = Math::Rand()*20.0f;
							dim.x = 1.0f;
							dim.y = dim.x;
							duration = Math::Rand()*1.0f+1.0f;
							mass = Math::Rand()*10.0f+15.0f;
							CreateParticule(pos, speed, dim, PARTIEXPLOG1, duration, mass, 1.0f);
						}
					}

					if ( m_exploGunCounter%4 == 0 )
					{
						Play(SOUND_EXPLOg1, pos, 0.5f);
					}

					DeleteRank(i);
					continue;
				}
			}

			m_particule[i].angle -= rTime*Math::PI*8.0f;
			m_particule[i].zoom = 1.0f-progress;

			ts.x = 0.00f;
			ts.y = 0.50f;
			ti.x = ts.x+0.25f;
			ti.y = ts.y+0.25f;
		}

		if ( m_particule[i].type == PARTIGUN2 )  // ant shot?
		{
			if ( progress >= 1.0f )
			{
				DeleteRank(i);
				continue;
			}

			if ( m_particule[i].testTime >= 0.2f )
			{
				m_particule[i].testTime = 0.0f;
				object = SearchObjectGun(m_particule[i].goal, m_particule[i].pos, m_particule[i].type, m_particule[i].objFather);
				m_particule[i].goal = m_particule[i].pos;
				if ( object != 0 )
				{
					if ( object->RetShieldRadius() > 0.0f )  // protected by shield?
					{
						CreateParticule(m_particule[i].pos, Math::Vector(0.0f, 0.0f, 0.0f), Math::Point(6.0f, 6.0f), PARTIGUNDEL, 2.0f);
						if ( m_lastTimeGunDel > 0.2f )
						{
							m_lastTimeGunDel = 0.0f;
							Play(SOUND_GUNDEL, m_particule[i].pos, 1.0f);
						}
						DeleteRank(i);
						continue;
					}
					else
					{
						if ( object->RetType() != OBJECT_HUMAN )
						{
							Play(SOUND_TOUCH, m_particule[i].pos, 1.0f);
						}
						object->ExploObject(EXPLO_BOUM, 0.0f);  // starts explosion
					}
				}
			}

			m_particule[i].angle = Math::Rand()*Math::PI*2.0f;
			m_particule[i].zoom = 1.0f-progress;

			ts.x = 0.125f;
			ts.y = 0.875f;
			ti.x = ts.x+0.125f;
			ti.y = ts.y+0.125f;
		}

		if ( m_particule[i].type == PARTIGUN3 )  // spider suicides?
		{
			if ( progress >= 1.0f )
			{
				DeleteRank(i);
				continue;
			}

			if ( m_particule[i].testTime >= 0.2f )
			{
				m_particule[i].testTime = 0.0f;
				object = SearchObjectGun(m_particule[i].goal, m_particule[i].pos, m_particule[i].type, m_particule[i].objFather);
				m_particule[i].goal = m_particule[i].pos;
				if ( object != 0 )
				{
					if ( object->RetShieldRadius() > 0.0f )
					{
						CreateParticule(m_particule[i].pos, Math::Vector(0.0f, 0.0f, 0.0f), Math::Point(6.0f, 6.0f), PARTIGUNDEL, 2.0f);
						if ( m_lastTimeGunDel > 0.2f )
						{
							m_lastTimeGunDel = 0.0f;
							Play(SOUND_GUNDEL, m_particule[i].pos, 1.0f);
						}
						DeleteRank(i);
						continue;
					}
					else
					{
						object->ExploObject(EXPLO_BURN, 1.0f);  // starts explosion
					}
				}
			}

//?			ts.x = 0.875f;
//?			ts.y = 0.750f;
			ts.x = 0.500f;
			ts.y = 0.750f;
			ti.x = ts.x+0.125f;
			ti.y = ts.y+0.125f;
		}

		if ( m_particule[i].type == PARTIGUN4 )  // orgaball shot?
		{
			if ( progress >= 1.0f )
			{
				DeleteRank(i);
				continue;
			}

			if ( m_particule[i].testTime >= 0.1f )
			{
				m_particule[i].testTime = 0.0f;

				if ( m_terrain->RetFloorHeight(m_particule[i].pos, true) < -2.0f )
				{
					m_exploGunCounter ++;

					if ( m_exploGunCounter%2 == 0 )
					{
						pos = m_particule[i].goal;
						m_terrain->MoveOnFloor(pos, true);
						speed.x = 0.0f;
						speed.z = 0.0f;
						speed.y = 0.0f;
						dim.x = Math::Rand()*4.0f+2.0f;
						dim.y = dim.x;
						duration = Math::Rand()*0.7f+0.7f;
						mass = 0.0f;
						CreateParticule(pos, speed, dim, PARTIEXPLOG2, duration, mass, 1.0f);
					}

					if ( m_exploGunCounter%4 == 0 )
					{
						Play(SOUND_EXPLOg2, pos, 0.5f);
					}

					DeleteRank(i);
					continue;
				}

				object = SearchObjectGun(m_particule[i].goal, m_particule[i].pos, m_particule[i].type, m_particule[i].objFather);
				m_particule[i].goal = m_particule[i].pos;
				if ( object != 0 )
				{
					object->ExploObject(EXPLO_BOUM, 0.0f, RetDecay(object->RetType()));

					m_exploGunCounter ++;

					if ( m_exploGunCounter%2 == 0 )
					{
						pos = m_particule[i].pos;
						speed.x = 0.0f;
						speed.z = 0.0f;
						speed.y = 0.0f;
						dim.x = Math::Rand()*4.0f+2.0f;
						dim.y = dim.x;
						duration = Math::Rand()*0.7f+0.7f;
						mass = 0.0f;
						CreateParticule(pos, speed, dim, PARTIEXPLOG2, duration, mass, 1.0f);
					}

					if ( m_exploGunCounter%4 == 0 )
					{
						Play(SOUND_EXPLOg2, pos, 0.5f);
					}

					DeleteRank(i);
					continue;
				}
			}

			m_particule[i].angle = Math::Rand()*Math::PI*2.0f;
			m_particule[i].zoom = 1.0f-progress;

			ts.x = 0.125f;
			ts.y = 0.875f;
			ti.x = ts.x+0.125f;
			ti.y = ts.y+0.125f;
		}

		if ( m_particule[i].type == PARTIFLIC )
		{
			if ( progress >= 1.0f )
			{
				DeleteRank(i);
				continue;
			}

			m_particule[i].zoom = 0.1f+progress;
			m_particule[i].intensity = 1.0f-progress;

			ts.x = 0.00f;
			ts.y = 0.75f;
			ti.x = ts.x+0.25f;
			ti.y = ts.y+0.25f;
		}

		if ( m_particule[i].type == PARTISHOW )
		{
			if ( progress >= 1.0f )
			{
				DeleteRank(i);
				continue;
			}

			if ( progress < 0.5f )  m_particule[i].intensity = progress/0.5f;
			else                    m_particule[i].intensity = 2.0f-progress/0.5f;
			m_particule[i].zoom = 1.0f-progress*0.8f;
			m_particule[i].angle -= rTime*Math::PI*0.5f;

			ts.x = 0.50f;
			ts.y = 0.00f;
			ti.x = ts.x+0.25f;
			ti.y = ts.y+0.25f;
		}

		if ( m_particule[i].type == PARTICHOC )
		{
			if ( progress >= 1.0f )
			{
				DeleteRank(i);
				continue;
			}

			m_particule[i].zoom = 0.1f+progress;
			m_particule[i].intensity = 1.0f-progress;

			ts.x = 0.50f;
			ts.y = 0.50f;
			ti.x = ts.x+0.25f;
			ti.y = ts.y+0.25f;
		}

		if ( m_particule[i].type == PARTIGFLAT )
		{
			if ( progress >= 1.0f )
			{
				DeleteRank(i);
				continue;
			}

			m_particule[i].zoom = 0.1f+progress;
			m_particule[i].intensity = 1.0f-progress;
			m_particule[i].angle -= rTime*Math::PI*2.0f;

			ts.x = 0.00f;
			ts.y = 0.50f;
			ti.x = ts.x+0.25f;
			ti.y = ts.y+0.25f;
		}

		if ( m_particule[i].type == PARTILIMIT1 )
		{
			if ( progress >= 1.0f )
			{
				DeleteRank(i);
				continue;
			}

			m_particule[i].zoom = 1.0f;
			m_particule[i].intensity = 1.0f;

			ts.x = 0.000f;
			ts.y = 0.125f;
			ti.x = ts.x+0.125f;
			ti.y = ts.y+0.125f;
		}
		if ( m_particule[i].type == PARTILIMIT2 )
		{
			if ( progress >= 1.0f )
			{
				DeleteRank(i);
				continue;
			}

			m_particule[i].zoom = 1.0f;
			m_particule[i].intensity = 1.0f;

			ts.x = 0.375f;
			ts.y = 0.125f;
			ti.x = ts.x+0.125f;
			ti.y = ts.y+0.125f;
		}
		if ( m_particule[i].type == PARTILIMIT3 )
		{
			if ( progress >= 1.0f )
			{
				DeleteRank(i);
				continue;
			}

			m_particule[i].zoom = 1.0f;
			m_particule[i].intensity = 1.0f;

			ts.x = 0.500f;
			ts.y = 0.125f;
			ti.x = ts.x+0.125f;
			ti.y = ts.y+0.125f;
		}

		if ( m_particule[i].type == PARTIFOG0 )
		{
			m_particule[i].zoom = progress;
			m_particule[i].intensity = 0.3f+sinf(progress)*0.15f;
			m_particule[i].angle += rTime*0.05f;

			ts.x = 0.25f;
			ts.y = 0.75f;
			ti.x = ts.x+0.25f;
			ti.y = ts.y+0.25f;
		}
		if ( m_particule[i].type == PARTIFOG1 )
		{
			m_particule[i].zoom = progress;
			m_particule[i].intensity = 0.3f+sinf(progress)*0.15f;
			m_particule[i].angle -= rTime*0.07f;

			ts.x = 0.25f;
			ts.y = 0.75f;
			ti.x = ts.x+0.25f;
			ti.y = ts.y+0.25f;
		}

		if ( m_particule[i].type == PARTIFOG2 )
		{
			m_particule[i].zoom = progress;
			m_particule[i].intensity = 0.6f+sinf(progress)*0.15f;
			m_particule[i].angle += rTime*0.05f;

			ts.x = 0.75f;
			ts.y = 0.75f;
			ti.x = ts.x+0.25f;
			ti.y = ts.y+0.25f;
		}
		if ( m_particule[i].type == PARTIFOG3 )
		{
			m_particule[i].zoom = progress;
			m_particule[i].intensity = 0.6f+sinf(progress)*0.15f;
			m_particule[i].angle -= rTime*0.07f;

			ts.x = 0.75f;
			ts.y = 0.75f;
			ti.x = ts.x+0.25f;
			ti.y = ts.y+0.25f;
		}

		if ( m_particule[i].type == PARTIFOG4 )
		{
			m_particule[i].zoom = progress;
			m_particule[i].intensity = 0.5f+sinf(progress)*0.2f;
			m_particule[i].angle += rTime*0.05f;

			ts.x = 0.00f;
			ts.y = 0.25f;
			ti.x = ts.x+0.25f;
			ti.y = ts.y+0.25f;
		}
		if ( m_particule[i].type == PARTIFOG5 )
		{
			m_particule[i].zoom = progress;
			m_particule[i].intensity = 0.5f+sinf(progress)*0.2f;
			m_particule[i].angle -= rTime*0.07f;

			ts.x = 0.00f;
			ts.y = 0.25f;
			ti.x = ts.x+0.25f;
			ti.y = ts.y+0.25f;
		}

		if ( m_particule[i].type == PARTIFOG6 )
		{
			m_particule[i].zoom = progress;
			m_particule[i].intensity = 0.5f+sinf(progress)*0.2f;
			m_particule[i].angle += rTime*0.05f;

			ts.x = 0.50f;
			ts.y = 0.25f;
			ti.x = ts.x+0.25f;
			ti.y = ts.y+0.25f;
		}
		if ( m_particule[i].type == PARTIFOG7 )
		{
			m_particule[i].zoom = progress;
			m_particule[i].intensity = 0.5f+sinf(progress)*0.2f;
			m_particule[i].angle -= rTime*0.07f;

			ts.x = 0.50f;
			ts.y = 0.25f;
			ti.x = ts.x+0.25f;
			ti.y = ts.y+0.25f;
		}

		// Decreases the intensity if the camera
		// is almost at the same height (fog was eye level).
		if ( m_particule[i].type >= PARTIFOG0 &&
			 m_particule[i].type <= PARTIFOG9 )
		{
			h = 10.0f;

			if ( m_particule[i].pos.y >= eye.y   &&
				 m_particule[i].pos.y <  eye.y+h )
			{
				m_particule[i].intensity *= (m_particule[i].pos.y-eye.y)/h;
			}
			if ( m_particule[i].pos.y >  eye.y-h &&
				 m_particule[i].pos.y <  eye.y   )
			{
				m_particule[i].intensity *= (eye.y-m_particule[i].pos.y)/h;
			}
		}

		if ( m_particule[i].type == PARTIEXPLOT ||
			 m_particule[i].type == PARTIEXPLOO )
		{
			if ( progress >= 1.0f )
			{
				DeleteRank(i);
				continue;
			}

			m_particule[i].zoom = 1.0f-progress/2.0f;
			m_particule[i].intensity = 1.0f-progress;

			if ( m_particule[i].type == PARTIEXPLOT )  ts.x = 0.750f;
			else                                       ts.x = 0.875f;
			ts.y = 0.750f;
			ti.x = ts.x+0.125f;
			ti.y = ts.y+0.125f;
		}

		if ( m_particule[i].type == PARTIEXPLOG1 )
		{
			if ( progress >= 1.0f )
			{
				DeleteRank(i);
				continue;
			}

			m_particule[i].intensity = 1.0f-progress;

			ts.x = 0.375f;
			ts.y = 0.000f;
			ti.x = ts.x+0.125f;
			ti.y = ts.y+0.125f;
		}
		if ( m_particule[i].type == PARTIEXPLOG2 )
		{
			if ( progress >= 1.0f )
			{
				DeleteRank(i);
				continue;
			}

			m_particule[i].intensity = 1.0f-progress;

			ts.x = 0.625f;
			ts.y = 0.000f;
			ti.x = ts.x+0.125f;
			ti.y = ts.y+0.125f;
		}

		if ( m_particule[i].type == PARTIFLAME )
		{
			if ( progress >= 1.0f )
			{
				DeleteRank(i);
				continue;
			}

			m_particule[i].zoom = 1.0f-progress/2.0f;
			if ( progress < 0.5f )
			{
				m_particule[i].intensity = progress/0.5f;
			}
			else
			{
				m_particule[i].intensity = 2.0f-progress/0.5f;
			}

			ts.x = 0.750f;
			ts.y = 0.750f;
			ti.x = ts.x+0.125f;
			ti.y = ts.y+0.125f;
		}

		if ( m_particule[i].type == PARTIBUBBLE )
		{
			if ( progress >= 1.0f ||
				 m_particule[i].pos.y >= m_water->RetLevel() )
			{
				DeleteRank(i);
				continue;
			}

			m_particule[i].zoom = 1.0f-progress/2.0f;
			m_particule[i].intensity = 1.0f-progress;

			ts.x = 0.250f;
			ts.y = 0.875f;
			ti.x = ts.x+0.125f;
			ti.y = ts.y+0.125f;
		}

		if ( m_particule[i].type == PARTISMOKE1 ||
			 m_particule[i].type == PARTISMOKE2 ||
			 m_particule[i].type == PARTISMOKE3 )
		{
			if ( progress >= 1.0f )
			{
				DeleteRank(i);
				continue;
			}

			if ( progress < 0.25f )
			{
				m_particule[i].zoom = progress/0.25f;
			}
			else
			{
				m_particule[i].intensity = 1.0f-(progress-0.25f)/0.75f;
			}

			ts.x = 0.500f+0.125f*(m_particule[i].type-PARTISMOKE1);
			ts.y = 0.750f;
			ti.x = ts.x+0.125f;
			ti.y = ts.y+0.125f;
		}

		if ( m_particule[i].type == PARTIBLOOD )
		{
			if ( progress >= 1.0f )
			{
				DeleteRank(i);
				continue;
			}

			m_particule[i].intensity = 1.0f-progress;

			ts.x = 0.750f+(rand()%2)*0.125f;
			ts.y = 0.875f;
			ti.x = ts.x+0.125f;
			ti.y = ts.y+0.125f;
		}

		if ( m_particule[i].type == PARTIBLOODM )
		{
			if ( progress >= 1.0f )
			{
				DeleteRank(i);
				continue;
			}

			m_particule[i].intensity = 1.0f-progress;

			ts.x = 0.875f;
			ts.y = 0.750f;
			ti.x = ts.x+0.125f;
			ti.y = ts.y+0.125f;
		}

		if ( m_particule[i].type == PARTIVIRUS1  ||
			 m_particule[i].type == PARTIVIRUS2  ||
			 m_particule[i].type == PARTIVIRUS3  ||
			 m_particule[i].type == PARTIVIRUS4  ||
			 m_particule[i].type == PARTIVIRUS5  ||
			 m_particule[i].type == PARTIVIRUS6  ||
			 m_particule[i].type == PARTIVIRUS7  ||
			 m_particule[i].type == PARTIVIRUS8  ||
			 m_particule[i].type == PARTIVIRUS9  ||
			 m_particule[i].type == PARTIVIRUS10 )
		{
			if ( progress >= 1.0f )
			{
				DeleteRank(i);
				continue;
			}

			if ( progress < 0.25f )
			{
				m_particule[i].zoom = progress/0.25f;
			}
			else
			{
				m_particule[i].intensity = 1.0f-(progress-0.25f)/0.75f;
			}
			m_particule[i].angle += rTime*Math::PI*1.0f;

			if ( m_particule[i].type == PARTIVIRUS1 )  // A ?
			{
				ts.x =   0.0f/256.0f;  ts.y =  19.0f/256.0f;
				ti.x =  10.0f/256.0f;  ti.y =  30.0f/256.0f;
			}
			if ( m_particule[i].type == PARTIVIRUS2 )  // C ?
			{
				ts.x =  19.0f/256.0f;  ts.y =  19.0f/256.0f;
				ti.x =  28.0f/256.0f;  ti.y =  30.0f/256.0f;
			}
			if ( m_particule[i].type == PARTIVIRUS3 )  // E ?
			{
				ts.x =  36.0f/256.0f;  ts.y =  19.0f/256.0f;
				ti.x =  45.0f/256.0f;  ti.y =  30.0f/256.0f;
			}
			if ( m_particule[i].type == PARTIVIRUS4 )  // N ?
			{
				ts.x = 110.0f/256.0f;  ts.y =  19.0f/256.0f;
				ti.x = 120.0f/256.0f;  ti.y =  30.0f/256.0f;
			}
			if ( m_particule[i].type == PARTIVIRUS5 )  // R ?
			{
				ts.x = 148.0f/256.0f;  ts.y =  19.0f/256.0f;
				ti.x = 158.0f/256.0f;  ti.y =  30.0f/256.0f;
			}
			if ( m_particule[i].type == PARTIVIRUS6 )  // T ?
			{
				ts.x = 166.0f/256.0f;  ts.y =  19.0f/256.0f;
				ti.x = 175.0f/256.0f;  ti.y =  30.0f/256.0f;
			}
			if ( m_particule[i].type == PARTIVIRUS7 )  // 0 ?
			{
				ts.x =  90.0f/256.0f;  ts.y =   2.0f/256.0f;
				ti.x =  98.0f/256.0f;  ti.y =  13.0f/256.0f;
			}
			if ( m_particule[i].type == PARTIVIRUS8 )  // 2 ?
			{
				ts.x = 103.0f/256.0f;  ts.y =   2.0f/256.0f;
				ti.x = 111.0f/256.0f;  ti.y =  13.0f/256.0f;
			}
			if ( m_particule[i].type == PARTIVIRUS9 )  // 5 ?
			{
				ts.x = 125.0f/256.0f;  ts.y =   2.0f/256.0f;
				ti.x = 132.0f/256.0f;  ti.y =  13.0f/256.0f;
			}
			if ( m_particule[i].type == PARTIVIRUS10 )  // 9 ?
			{
				ts.x = 153.0f/256.0f;  ts.y =   2.0f/256.0f;
				ti.x = 161.0f/256.0f;  ti.y =  13.0f/256.0f;
			}
		}

		if ( m_particule[i].type == PARTIBLUE )
		{
			if ( progress >= 1.0f )
			{
				DeleteRank(i);
				continue;
			}

			m_particule[i].zoom = 1.0f-progress;

			ts.x = 0.625f;
			ts.y = 0.750f;
			ti.x = ts.x+0.125f;
			ti.y = ts.y+0.125f;
		}

		if ( m_particule[i].type == PARTIROOT )
		{
			if ( progress >= 1.0f )
			{
				DeleteRank(i);
				continue;
			}

			if ( progress < 0.25f )
			{
				m_particule[i].zoom = progress/0.25f;
			}
			else
			{
				m_particule[i].intensity = 1.0f-(progress-0.25f)/0.75f;
			}

			ts.x = 0.000f;
			ts.y = 0.000f;
			ti.x = ts.x+0.125f;
			ti.y = ts.y+0.125f;
		}

		if ( m_particule[i].type == PARTIRECOVER )
		{
			if ( progress >= 1.0f )
			{
				DeleteRank(i);
				continue;
			}

			if ( progress < 0.25f )
			{
				m_particule[i].zoom = progress/0.25f;
			}
			else
			{
				m_particule[i].intensity = 1.0f-(progress-0.25f)/0.75f;
			}

			ts.x = 0.875f;
			ts.y = 0.000f;
			ti.x = ts.x+0.125f;
			ti.y = ts.y+0.125f;
		}

		if ( m_particule[i].type == PARTIEJECT )
		{
			if ( progress >= 1.0f )
			{
				DeleteRank(i);
				continue;
			}

			m_particule[i].zoom = 1.0f+powf(progress, 2.0f)*5.0f;
			m_particule[i].intensity = 1.0f-progress;

			ts.x = 0.625f;
			ts.y = 0.875f;
			ti.x = ts.x+0.125f;
			ti.y = ts.y+0.125f;
		}

		if ( m_particule[i].type == PARTISCRAPS )
		{
			if ( progress >= 1.0f )
			{
				DeleteRank(i);
				continue;
			}

			m_particule[i].zoom = 1.0f-progress;

			ts.x = 0.625f;
			ts.y = 0.875f;
			ti.x = ts.x+0.125f;
			ti.y = ts.y+0.125f;
		}

		if ( m_particule[i].type == PARTIFRAG )
		{
			m_particule[i].angle += rTime*Math::PI*0.5f;

			ts.x = 0.0f;
			ts.y = 0.0f;
			ti.x = 0.0f;
			ti.y = 0.0f;
		}

		if ( m_particule[i].type == PARTIPART )
		{
			ts.x = 0.0f;
			ts.y = 0.0f;
			ti.x = 0.0f;
			ti.y = 0.0f;
		}

		if ( m_particule[i].type == PARTIQUEUE )
		{
			if ( m_particule[i].testTime >= 0.05f )
			{
				m_particule[i].testTime = 0.0f;

				Math::Vector	pos, speed;
				Math::Point		dim;

				pos = m_particule[i].pos;
//?				speed = -m_particule[i].speed*0.5f;
				speed = Math::Vector(0.0f, 0.0f, 0.0f);
				dim.x = 1.0f*(Math::Rand()*0.8f+0.6f);
				dim.y = dim.x;
				CreateParticule(pos, speed, dim, PARTIGAS, 0.5f);
			}

			ts.x = 0.375f;
			ts.y = 0.750f;
			ti.x = ts.x+0.125f;
			ti.y = ts.y+0.125f;
		}

		if ( m_particule[i].type == PARTIORGANIC1 )
		{
			if ( progress >= 1.0f )
			{
				DeleteRank(i);

				pos      = m_particule[i].pos;
				dim.x    = m_particule[i].dim.x/4.0f;
				dim.y    = dim.x;
				duration = m_particule[i].duration;
				mass     = m_particule[i].mass;
				total = (int)(10.0f*m_engine->RetParticuleDensity());
				for ( i=0 ; i<total ; i++ )
				{
					speed.x = (Math::Rand()-0.5f)*20.0f;
					speed.y = (Math::Rand()-0.5f)*20.0f;
					speed.z = (Math::Rand()-0.5f)*20.0f;
					CreateParticule(pos, speed, dim, PARTIORGANIC2, duration, mass);
				}
				total = (int)(5.0f*m_engine->RetParticuleDensity());
				for ( i=0 ; i<total ; i++ )
				{
					speed.x = (Math::Rand()-0.5f)*20.0f;
					speed.y = (Math::Rand()-0.5f)*20.0f;
					speed.z = (Math::Rand()-0.5f)*20.0f;
					duration *= Math::Rand()+0.8f;
					CreateTrack(pos, speed, dim, PARTITRACK4, duration, mass, duration*0.2f, dim.x*2.0f);
				}
				continue;
			}

			m_particule[i].zoom = (m_particule[i].time-m_particule[i].duration);

			ts.x = 0.125f;
			ts.y = 0.875f;
			ti.x = ts.x+0.125f;
			ti.y = ts.y+0.125f;
		}

		if ( m_particule[i].type == PARTIORGANIC2 )
		{
			if ( progress >= 1.0f )
			{
				DeleteRank(i);
				continue;
			}

			m_particule[i].zoom = 1.0f-(m_particule[i].time-m_particule[i].duration);

			ts.x = 0.125f;
			ts.y = 0.875f;
			ti.x = ts.x+0.125f;
			ti.y = ts.y+0.125f;
		}

		if ( m_particule[i].type == PARTIGLINT )
		{
			if ( progress >= 1.0f )
			{
				DeleteRank(i);
				continue;
			}

			if ( progress > 0.5f )
			{
//?				m_particule[i].zoom = 1.0f-(m_particule[i].time-m_particule[i].duration/2.0f);
				m_particule[i].zoom = 1.0f-(progress-0.5f)*2.0f;
			}
			m_particule[i].angle = m_particule[i].time*Math::PI;

			ts.x = 0.75f;
			ts.y = 0.25f;
			ti.x = ts.x+0.25f;
			ti.y = ts.y+0.25f;
		}

		if ( m_particule[i].type == PARTIGLINTb )
		{
			if ( progress >= 1.0f )
			{
				DeleteRank(i);
				continue;
			}

			if ( progress > 0.5f )
			{
				m_particule[i].zoom = 1.0f-(progress-0.5f)*2.0f;
			}
			m_particule[i].angle = m_particule[i].time*Math::PI;

			ts.x = 0.75f;
			ts.y = 0.50f;
			ti.x = ts.x+0.25f;
			ti.y = ts.y+0.25f;
		}

		if ( m_particule[i].type == PARTIGLINTr )
		{
			if ( progress >= 1.0f )
			{
				DeleteRank(i);
				continue;
			}

			if ( progress > 0.5f )
			{
				m_particule[i].zoom = 1.0f-(progress-0.5f)*2.0f;
			}
			m_particule[i].angle = m_particule[i].time*Math::PI;

			ts.x = 0.75f;
			ts.y = 0.00f;
			ti.x = ts.x+0.25f;
			ti.y = ts.y+0.25f;
		}

		if ( m_particule[i].type >= PARTILENS1 &&
			 m_particule[i].type <= PARTILENS4 )
		{
			if ( progress >= 1.0f )
			{
				DeleteRank(i);
				continue;
			}

			if ( progress < 0.5f )
			{
				m_particule[i].zoom = progress*2.0f;
			}
			else
			{
				m_particule[i].intensity = 1.0f-(progress-0.5f)*2.0f;
			}
//?			m_particule[i].angle = m_particule[i].time*Math::PI;

			ts.x = 0.25f*(m_particule[i].type-PARTILENS1);
			ts.y = 0.25f;
			ti.x = ts.x+0.25f;
			ti.y = ts.y+0.25f;
		}

		if ( m_particule[i].type == PARTICONTROL )
		{
			if ( progress >= 1.0f )
			{
				DeleteRank(i);
				continue;
			}

			if ( progress < 0.3f )
			{
				m_particule[i].zoom = progress/0.3f;
			}
			else
			{
				m_particule[i].zoom = 1.0f;
				m_particule[i].intensity = 1.0f-(progress-0.3f)/0.7f;
			}

			ts.x = 0.00f;
			ts.y = 0.00f;
			ti.x = ts.x+0.25f;
			ti.y = ts.y+0.25f;
		}

		if ( m_particule[i].type == PARTIGUNDEL )
		{
			if ( progress >= 1.0f )
			{
				DeleteRank(i);
				continue;
			}

			if ( progress > 0.5f )
			{
				m_particule[i].zoom = 1.0f-(m_particule[i].time-m_particule[i].duration/2.0f);
			}
			m_particule[i].angle = m_particule[i].time*Math::PI;

			ts.x = 0.75f;
			ts.y = 0.50f;
			ti.x = ts.x+0.25f;
			ti.y = ts.y+0.25f;
		}

		if ( m_particule[i].type == PARTIQUARTZ )
		{
			if ( progress >= 1.0f )
			{
				m_particule[i].time = 0.0f;
				m_particule[i].duration = 0.5f+Math::Rand()*2.0f;
				m_particule[i].pos.x = m_particule[i].speed.x + (Math::Rand()-0.5f)*m_particule[i].mass;
				m_particule[i].pos.y = m_particule[i].speed.y + (Math::Rand()-0.5f)*m_particule[i].mass;
				m_particule[i].pos.z = m_particule[i].speed.z + (Math::Rand()-0.5f)*m_particule[i].mass;
				m_particule[i].dim.x = 0.5f+Math::Rand()*1.5f;
				m_particule[i].dim.y = m_particule[i].dim.x;
				progress = 0.0f;
			}

			if ( progress < 0.2f )
			{
				m_particule[i].zoom = progress/0.2f;
				m_particule[i].intensity = 1.0f;
			}
			else
			{
				m_particule[i].zoom = 1.0f;
				m_particule[i].intensity = 1.0f-(progress-0.2f)/0.8f;
			}

			ts.x = 0.25f;
			ts.y = 0.25f;
			ti.x = ts.x+0.25f;
			ti.y = ts.y+0.25f;
		}

		if ( m_particule[i].type == PARTITOTO )
		{
			if ( progress >= 1.0f )
			{
				DeleteRank(i);
				continue;
			}

			m_particule[i].zoom = 1.0f-progress;
			if ( progress < 0.15f )
			{
				m_particule[i].intensity = progress/0.15f;
			}
			else
			{
				m_particule[i].intensity = 1.0f-(progress-0.15f)/0.85f;
			}
			m_particule[i].intensity *= 0.5f;

			ts.x = 0.25f;
			ts.y = 0.50f;
			ti.x = ts.x+0.25f;
			ti.y = ts.y+0.25f;
		}

		if ( m_particule[i].type == PARTIERROR )
		{
			if ( progress >= 1.0f )
			{
				DeleteRank(i);
				continue;
			}

			m_particule[i].zoom = progress*1.0f;
			m_particule[i].intensity = 1.0f-progress;

			ts.x = 0.500f;
			ts.y = 0.875f;
			ti.x = ts.x+0.125f;
			ti.y = ts.y+0.125f;
		}

		if ( m_particule[i].type == PARTIWARNING )
		{
			if ( progress >= 1.0f )
			{
				DeleteRank(i);
				continue;
			}

			m_particule[i].zoom = progress*1.0f;
			m_particule[i].intensity = 1.0f-progress;

			ts.x = 0.875f;
			ts.y = 0.875f;
			ti.x = ts.x+0.125f;
			ti.y = ts.y+0.125f;
		}

		if ( m_particule[i].type == PARTIINFO )
		{
			if ( progress >= 1.0f )
			{
				DeleteRank(i);
				continue;
			}

			m_particule[i].zoom = progress*1.0f;
			m_particule[i].intensity = 1.0f-progress;

			ts.x = 0.750f;
			ts.y = 0.875f;
			ti.x = ts.x+0.125f;
			ti.y = ts.y+0.125f;
		}

		if ( m_particule[i].type == PARTISELY )
		{
			ts.x = 0.75f;
			ts.y = 0.25f;
			ti.x = ts.x+0.25f;
			ti.y = ts.y+0.25f;
		}
		if ( m_particule[i].type == PARTISELR )
		{
			ts.x = 0.75f;
			ts.y = 0.00f;
			ti.x = ts.x+0.25f;
			ti.y = ts.y+0.25f;
		}

		if ( m_particule[i].type == PARTISPHERE0 )
		{
			if ( progress >= 1.0f )
			{
				DeleteRank(i);
				continue;
			}

			m_particule[i].zoom = progress*m_particule[i].dim.x;
//?			m_particule[i].intensity = 1.0f-progress;
			if ( progress < 0.65f )
			{
				m_particule[i].intensity = progress/0.65f;
			}
			else
			{
				m_particule[i].intensity = 1.0f-(progress-0.65f)/0.35f;
			}
			m_particule[i].intensity *= 0.5f;

			ts.x = 0.50f;
			ts.y = 0.75f;
			ti.x = ts.x+0.25f;
			ti.y = ts.y+0.25f;
		}

		if ( m_particule[i].type == PARTISPHERE1 )
		{
			if ( progress >= 1.0f )
			{
				DeleteRank(i);
				continue;
			}

			if ( progress < 0.30f )
			{
				m_particule[i].intensity = progress/0.30f;
			}
			else
			{
				m_particule[i].intensity = 1.0f-(progress-0.30f)/0.70f;
			}
			m_particule[i].zoom = progress*m_particule[i].dim.x;
			m_particule[i].angle = m_particule[i].time*Math::PI*2.0f;

			ts.x = 0.000f;
			ts.y = 0.000f;
			ti.x = ts.x+0.125f;
			ti.y = ts.y+0.125f;
		}

		if ( m_particule[i].type == PARTISPHERE2 )
		{
			if ( progress >= 1.0f )
			{
				DeleteRank(i);
				continue;
			}

			if ( progress < 0.20f )
			{
				m_particule[i].intensity = 1.0f;
			}
			else
			{
				m_particule[i].intensity = 1.0f-(progress-0.20f)/0.80f;
			}
			m_particule[i].zoom = progress*m_particule[i].dim.x;
			m_particule[i].angle = m_particule[i].time*Math::PI*2.0f;

			ts.x = 0.125f;
			ts.y = 0.000f;
			ti.x = ts.x+0.125f;
			ti.y = ts.y+0.125f;
		}

		if ( m_particule[i].type == PARTISPHERE3 )
		{
			if ( m_particule[i].phase == PARPHEND &&
				 progress >= 1.0f )
			{
				DeleteRank(i);
				continue;
			}

			if ( m_particule[i].phase == PARPHSTART )
			{
				m_particule[i].intensity = progress;
				if ( m_particule[i].intensity > 1.0f )
				{
					m_particule[i].intensity = 1.0f;
				}
			}

			if ( m_particule[i].phase == PARPHEND )
			{
				m_particule[i].intensity = 1.0f-progress;
			}

			m_particule[i].zoom = m_particule[i].dim.x;
			m_particule[i].angle = m_particule[i].time*Math::PI*0.2f;

			ts.x = 0.25f;
			ts.y = 0.75f;
			ti.x = ts.x+0.25f;
			ti.y = ts.y+0.25f;
		}

		if ( m_particule[i].type == PARTISPHERE4 )
		{
			if ( progress >= 1.0f )
			{
				DeleteRank(i);
				continue;
			}

			m_particule[i].zoom = progress*m_particule[i].dim.x;
			if ( progress < 0.65f )
			{
				m_particule[i].intensity = progress/0.65f;
			}
			else
			{
				m_particule[i].intensity = 1.0f-(progress-0.65f)/0.35f;
			}
			m_particule[i].intensity *= 0.5f;

			ts.x = 0.125f;
			ts.y = 0.000f;
			ti.x = ts.x+0.125f;
			ti.y = ts.y+0.125f;
		}

		if ( m_particule[i].type == PARTISPHERE5 )
		{
			m_particule[i].intensity = 0.7f+sinf(progress)*0.3f;
			m_particule[i].zoom = m_particule[i].dim.x*(1.0f+sinf(progress*0.7f)*0.01f);
			m_particule[i].angle = m_particule[i].time*Math::PI*0.2f;

			ts.x = 0.25f;
			ts.y = 0.50f;
			ti.x = ts.x+0.25f;
			ti.y = ts.y+0.25f;
		}

		if ( m_particule[i].type == PARTISPHERE6 )
		{
			if ( progress >= 1.0f )
			{
				DeleteRank(i);
				continue;
			}

			m_particule[i].zoom = (1.0f-progress)*m_particule[i].dim.x;
			m_particule[i].intensity = progress*0.5f;

			ts.x = 0.125f;
			ts.y = 0.000f;
			ti.x = ts.x+0.125f;
			ti.y = ts.y+0.125f;
		}

		if ( m_particule[i].type == PARTIPLOUF0 )
		{
			if ( progress >= 1.0f )
			{
				DeleteRank(i);
				continue;
			}

			m_particule[i].zoom = progress;
#if 0
			if ( progress <= 0.5f )
			{
				m_particule[i].intensity = 1.0f;
			}
			else
			{
				m_particule[i].intensity = 1.0f-(progress-0.5f)/0.5f;
			}
#else
//?			m_particule[i].intensity = 1.0f;
			m_particule[i].intensity = 1.0f-progress;
#endif

			ts.x = 0.50f;
			ts.y = 0.50f;
			ti.x = ts.x+0.25f;
			ti.y = ts.y+0.25f;
		}

		if ( m_particule[i].type == PARTIDROP )
		{
			if ( progress >= 1.0f ||
				 m_particule[i].pos.y < m_water->RetLevel() )
			{
				DeleteRank(i);
				continue;
			}

			m_particule[i].zoom = 1.0f-progress;
			m_particule[i].intensity = 1.0f-progress;

			ts.x = 0.750f;
			ts.y = 0.500f;
			ti.x = ts.x+0.125f;
			ti.y = ts.y+0.125f;
		}

		if ( m_particule[i].type == PARTIWATER )
		{
			if ( progress >= 1.0f ||
				 m_particule[i].pos.y < m_water->RetLevel() )
			{
				DeleteRank(i);
				continue;
			}

			m_particule[i].intensity = 1.0f-progress;

			ts.x = 0.125f;
			ts.y = 0.125f;
			ti.x = ts.x+0.125f;
			ti.y = ts.y+0.125f;
		}

		if ( m_particule[i].type == PARTIRAY1 )  // rayon tour ?
		{
			if ( progress >= 1.0f )
			{
				DeleteRank(i);
				continue;
			}

			if ( m_particule[i].testTime >= 0.2f )
			{
				m_particule[i].testTime = 0.0f;
				object = SearchObjectRay(m_particule[i].pos, m_particule[i].goal,
										 m_particule[i].type, m_particule[i].objFather);
				if ( object != 0 )
				{
					object->ExploObject(EXPLO_BOUM, 0.0f);
				}
			}

			ts.x = 0.00f;
			ts.y = 0.00f;
			ti.x = ts.x+0.25f;
			ti.y = ts.y+0.25f;
		}

		if ( m_particule[i].type == PARTIRAY2 ||
			 m_particule[i].type == PARTIRAY3 )
		{
			if ( progress >= 1.0f )
			{
				DeleteRank(i);
				continue;
			}

			ts.x = 0.00f;
			ts.y = 0.25f;
			ti.x = ts.x+0.25f;
			ti.y = ts.y+0.25f;
		}

		dp = (1.0f/256.0f)/2.0f;
		m_particule[i].texSup.x = ts.x+dp;
		m_particule[i].texSup.y = ts.y+dp;
		m_particule[i].texInf.x = ti.x-dp;
		m_particule[i].texInf.y = ti.y-dp;
		m_particule[i].time     += rTime;
		m_particule[i].testTime += rTime;
	}
}


// Moves a drag.
// Returns true if the drag is finished.

bool CParticule::TrackMove(int i, Math::Vector pos, float progress)
{
	Math::Vector	last;
	int			h, hh;

	if ( i < 0 || i >= MAXTRACK )  return true;
	if ( m_track[i].bUsed == false )  return true;

	if ( progress < 1.0f )  // particle exists?
	{
		h = m_track[i].head;

		if ( m_track[i].used == 1 ||
			 m_track[i].last+m_track[i].step <= progress )
		{
			m_track[i].last = progress;
			last = m_track[i].pos[h];
			h ++;
			if ( h == MAXTRACKLEN )  h = 0;
			if ( m_track[i].used < MAXTRACKLEN )  m_track[i].used ++;
		}
		else
		{
			hh = h-1;
			if ( hh < 0 )  hh = MAXTRACKLEN-1;
			last = m_track[i].pos[hh];
		}
		m_track[i].pos[h] = pos;
		m_track[i].len[h] = Math::Distance(pos, last);

		m_track[i].head = h;

//?		m_track[i].intensity = 1.0f;
		m_track[i].intensity = 1.0f-progress;
	}
	else	// mort lente de la tra<72>n<EFBFBD>e ?
	{
//?		m_track[i].intensity = 1.0f-(progress-1.0f)/(m_track[i].step*MAXTRACKLEN);
		m_track[i].intensity = 0.0f;
	}

	return (m_track[i].intensity <= 0.0f);
}

// Draws a drag.

void CParticule::TrackDraw(int i, ParticuleType type)
{
	D3DVERTEX2	vertex[4];	// 2 triangles
	Math::Vector	corner[4], p1, p2, p, n, eye;
	Math::Matrix	matrix;
	Math::Point		texInf, texSup, rot;
	float		lTotal, f1, f2, a;
	int			counter, h;

	// Calculates the total length memorized.
	lTotal = 0.0f;
	h = m_track[i].head;
	for ( counter=0 ; counter<m_track[i].used-1 ; counter++ )
	{
		lTotal += m_track[i].len[h];
		h --;  if ( h < 0 )  h = MAXTRACKLEN-1;
	}

	matrix.LoadIdentity();
	{
	  D3DMATRIX mat = MAT_TO_D3DMAT(matrix);
	  m_pD3DDevice->SetTransform(D3DTRANSFORMSTATE_WORLD, &mat);
	}

	if ( type == PARTITRACK1 )  // explosion technique?
	{
		texInf.x = 64.5f/256.0f;
		texInf.y = 21.0f/256.0f;
		texSup.x = 95.5f/256.0f;
		texSup.y = 22.0f/256.0f;  // orange
	}
	if ( type == PARTITRACK2 )  // blue spray?
	{
		texInf.x = 64.5f/256.0f;
		texInf.y = 13.0f/256.0f;
		texSup.x = 95.5f/256.0f;
		texSup.y = 14.0f/256.0f;  // blue
	}
	if ( type == PARTITRACK3 )  // spider?
	{
		texInf.x = 64.5f/256.0f;
		texInf.y =  5.0f/256.0f;
		texSup.x = 95.5f/256.0f;
		texSup.y =  6.0f/256.0f;  // brown
	}
	if ( type == PARTITRACK4 )  // insect explosion?
	{
		texInf.x = 64.5f/256.0f;
		texInf.y =  9.0f/256.0f;
		texSup.x = 95.5f/256.0f;
		texSup.y = 10.0f/256.0f;  // dark green
	}
	if ( type == PARTITRACK5 )  // derrick?
	{
		texInf.x = 64.5f/256.0f;
		texInf.y = 29.0f/256.0f;
		texSup.x = 95.5f/256.0f;
		texSup.y = 30.0f/256.0f;  // dark brown
	}
	if ( type == PARTITRACK6 )  // reset in/out?
	{
		texInf.x = 64.5f/256.0f;
		texInf.y = 17.0f/256.0f;
		texSup.x = 95.5f/256.0f;
		texSup.y = 18.0f/256.0f;  // cyan
	}
	if ( type == PARTITRACK7 )  // win-1?
	{
		texInf.x = 64.5f/256.0f;
		texInf.y = 41.0f/256.0f;
		texSup.x = 95.5f/256.0f;
		texSup.y = 42.0f/256.0f;  // orange
	}
	if ( type == PARTITRACK8 )  // win-2?
	{
		texInf.x = 64.5f/256.0f;
		texInf.y = 45.0f/256.0f;
		texSup.x = 95.5f/256.0f;
		texSup.y = 46.0f/256.0f;  // yellow
	}
	if ( type == PARTITRACK9 )  // win-3?
	{
		texInf.x = 64.5f/256.0f;
		texInf.y = 49.0f/256.0f;
		texSup.x = 95.5f/256.0f;
		texSup.y = 50.0f/256.0f;  // red
	}
	if ( type == PARTITRACK10 )  // win-4?
	{
		texInf.x = 64.5f/256.0f;
		texInf.y = 53.0f/256.0f;
		texSup.x = 95.5f/256.0f;
		texSup.y = 54.0f/256.0f;  // violet
	}
	if ( type == PARTITRACK11 )  // phazer shot?
	{
		texInf.x = 64.5f/256.0f;
		texInf.y = 21.0f/256.0f;
		texSup.x = 95.5f/256.0f;
		texSup.y = 22.0f/256.0f;  // orange
	}
	if ( type == PARTITRACK12 )  // drag reactor?
	{
		texInf.x = 64.5f/256.0f;
		texInf.y = 21.0f/256.0f;
		texSup.x = 95.5f/256.0f;
		texSup.y = 22.0f/256.0f;  // orange
	}

	h  = m_track[i].head;
	p1 = m_track[i].pos[h];
	f1 = m_track[i].intensity;

	eye = m_engine->RetEyePt();
	a = Math::RotateAngle(eye.x-p1.x, eye.z-p1.z);

	for ( counter=0 ; counter<m_track[i].used-1 ; counter++ )
	{
		f2 = f1-(m_track[i].len[h]/lTotal);
		if ( f2 < 0.0f )  f2 = 0.0f;
		h --;  if ( h < 0 )  h = MAXTRACKLEN-1;
		p2 = m_track[i].pos[h];

		n = Normalize(p1-eye);

		p = p1;
		p.x += f1*m_track[i].width;
		rot = Math::RotatePoint(Math::Point(p1.x, p1.z), a+Math::PI/2.0f, Math::Point(p.x, p.z));
		corner[0].x = rot.x;
		corner[0].y = p1.y;
		corner[0].z = rot.y;
		rot = Math::RotatePoint(Math::Point(p1.x, p1.z), a-Math::PI/2.0f, Math::Point(p.x, p.z));
		corner[1].x = rot.x;
		corner[1].y = p1.y;
		corner[1].z = rot.y;

		p = p2;
		p.x += f2*m_track[i].width;
		rot = Math::RotatePoint(Math::Point(p2.x, p2.z), a+Math::PI/2.0f, Math::Point(p.x, p.z));
		corner[2].x = rot.x;
		corner[2].y = p2.y;
		corner[2].z = rot.y;
		rot = Math::RotatePoint(Math::Point(p2.x, p2.z), a-Math::PI/2.0f, Math::Point(p.x, p.z));
		corner[3].x = rot.x;
		corner[3].y = p2.y;
		corner[3].z = rot.y;

		if ( p2.y < p1.y )
		{
			vertex[0] = D3DVERTEX2(corner[1], n, texSup.x, texSup.y);
			vertex[1] = D3DVERTEX2(corner[0], n, texInf.x, texSup.y);
			vertex[2] = D3DVERTEX2(corner[3], n, texSup.x, texInf.y);
			vertex[3] = D3DVERTEX2(corner[2], n, texInf.x, texInf.y);
		}
		else
		{
			vertex[0] = D3DVERTEX2(corner[0], n, texSup.x, texSup.y);
			vertex[1] = D3DVERTEX2(corner[1], n, texInf.x, texSup.y);
			vertex[2] = D3DVERTEX2(corner[2], n, texSup.x, texInf.y);
			vertex[3] = D3DVERTEX2(corner[3], n, texInf.x, texInf.y);
		}

		m_pD3DDevice->DrawPrimitive(D3DPT_TRIANGLESTRIP, D3DFVF_VERTEX2, vertex, 4, NULL);
		m_engine->AddStatisticTriangle(2);

		if ( f2 < 0.0f )  break;
		f1 = f2;
		p1 = p2;
	}
}

// Draws a triangular particle.

void CParticule::DrawParticuleTriangle(int i)
{
	CObject*		object;
	Math::Matrix		matrix;
	Math::Vector		eye, pos, angle;

	if ( m_particule[i].zoom == 0.0f )  return;

	eye = m_engine->RetEyePt();
	pos = m_particule[i].pos;

	object = m_particule[i].objLink;
	if ( object != 0 )
	{
		pos += object->RetPosition(0);
	}

	angle.x = -Math::RotateAngle(Math::DistanceProjected(pos, eye), pos.y-eye.y);
	angle.y = Math::RotateAngle(pos.z-eye.z, pos.x-eye.x);
	angle.z = m_particule[i].angle;

	Math::LoadRotationXZYMatrix(matrix, angle);
	matrix.Set(1, 4, pos.x);
	matrix.Set(2, 4, pos.y);
	matrix.Set(3, 4, pos.z);
	{
	  D3DMATRIX mat = MAT_TO_D3DMAT(matrix);
	  m_pD3DDevice->SetTransform(D3DTRANSFORMSTATE_WORLD, &mat);
	}

	m_pD3DDevice->DrawPrimitive(D3DPT_TRIANGLELIST, D3DFVF_VERTEX2,
								m_triangle[i].triangle, 3, NULL);
	m_engine->AddStatisticTriangle(1);
}

// Draw a normal particle.

void CParticule::DrawParticuleNorm(int i)
{
	CObject*		object;
	D3DVERTEX2		vertex[4];	// 2 triangles
	Math::Matrix		matrix;
	Math::Vector		corner[4], eye, pos, n, angle;
	Math::Point			dim;
	float			zoom;

	zoom = m_particule[i].zoom;
	if ( !m_engine->RetStateColor() && m_particule[i].intensity < 0.5f )
	{
		zoom *= m_particule[i].intensity/0.5f;
	}

	if ( zoom == 0.0f )  return;
	if ( m_particule[i].intensity == 0.0f )  return;

	if ( m_particule[i].sheet == SH_INTERFACE )
	{
		pos = m_particule[i].pos;

		n = Math::Vector(0.0f, 0.0f, -1.0f);

		dim.x = m_particule[i].dim.x * zoom;
		dim.y = m_particule[i].dim.y * zoom;

		corner[0].x = pos.x+dim.x;
		corner[0].y = pos.y+dim.y;
		corner[0].z = 0.0f;

		corner[1].x = pos.x-dim.x;
		corner[1].y = pos.y+dim.y;
		corner[1].z = 0.0f;

		corner[2].x = pos.x+dim.x;
		corner[2].y = pos.y-dim.y;
		corner[2].z = 0.0f;

		corner[3].x = pos.x-dim.x;
		corner[3].y = pos.y-dim.y;
		corner[3].z = 0.0f;

		vertex[0] = D3DVERTEX2(corner[1], n, m_particule[i].texSup.x, m_particule[i].texSup.y);
		vertex[1] = D3DVERTEX2(corner[0], n, m_particule[i].texInf.x, m_particule[i].texSup.y);
		vertex[2] = D3DVERTEX2(corner[3], n, m_particule[i].texSup.x, m_particule[i].texInf.y);
		vertex[3] = D3DVERTEX2(corner[2], n, m_particule[i].texInf.x, m_particule[i].texInf.y);

		m_pD3DDevice->DrawPrimitive(D3DPT_TRIANGLESTRIP, D3DFVF_VERTEX2, vertex, 4, NULL);
		m_engine->AddStatisticTriangle(2);
	}
	else
	{
		eye = m_engine->RetEyePt();
		pos = m_particule[i].pos;

		object = m_particule[i].objLink;
		if ( object != 0 )
		{
			pos += object->RetPosition(0);
		}

		angle.x = -Math::RotateAngle(Math::DistanceProjected(pos, eye), pos.y-eye.y);
		angle.y = Math::RotateAngle(pos.z-eye.z, pos.x-eye.x);
		angle.z = m_particule[i].angle;

		Math::LoadRotationXZYMatrix(matrix, angle);
		matrix.Set(1, 4, pos.x);
		matrix.Set(2, 4, pos.y);
		matrix.Set(3, 4, pos.z);
		{
		  D3DMATRIX mat = MAT_TO_D3DMAT(matrix);
		  m_pD3DDevice->SetTransform(D3DTRANSFORMSTATE_WORLD, &mat);
		}

		n = Math::Vector(0.0f, 0.0f, -1.0f);

		dim.x = m_particule[i].dim.x * zoom;
		dim.y = m_particule[i].dim.y * zoom;

		corner[0].x =  dim.x;
		corner[0].y =  dim.y;
		corner[0].z =  0.0f;

		corner[1].x = -dim.x;
		corner[1].y =  dim.y;
		corner[1].z =  0.0f;

		corner[2].x =  dim.x;
		corner[2].y = -dim.y;
		corner[2].z =  0.0f;

		corner[3].x = -dim.x;
		corner[3].y = -dim.y;
		corner[3].z =  0.0f;

		vertex[0] = D3DVERTEX2(corner[1], n, m_particule[i].texSup.x, m_particule[i].texSup.y);
		vertex[1] = D3DVERTEX2(corner[0], n, m_particule[i].texInf.x, m_particule[i].texSup.y);
		vertex[2] = D3DVERTEX2(corner[3], n, m_particule[i].texSup.x, m_particule[i].texInf.y);
		vertex[3] = D3DVERTEX2(corner[2], n, m_particule[i].texInf.x, m_particule[i].texInf.y);

		m_pD3DDevice->DrawPrimitive(D3DPT_TRIANGLESTRIP, D3DFVF_VERTEX2, vertex, 4, NULL);
		m_engine->AddStatisticTriangle(2);
	}
}

// Draw a particle flat (horizontal).

void CParticule::DrawParticuleFlat(int i)
{
	CObject*		object;
	D3DVERTEX2		vertex[4];	// 2 triangles
	Math::Matrix		matrix;
	Math::Vector		corner[4], pos, n, angle, eye;
	Math::Point			dim;

	if ( m_particule[i].zoom == 0.0f )  return;
	if ( m_particule[i].intensity == 0.0f )  return;

	pos = m_particule[i].pos;

	object = m_particule[i].objLink;
	if ( object != 0 )
	{
		pos += object->RetPosition(0);
	}

	angle.x = Math::PI/2.0f;
	angle.y = 0.0f;
	angle.z = m_particule[i].angle;

#if 0
	if ( m_engine->RetRankView() == 1 )  // underwater?
	{
		angle.x = -Math::PI/2.0f;
		pos.y -= 1.0f;
	}
#else
	if ( m_engine->RetRankView() == 1 )  // underwater?
	{
		pos.y -= 1.0f;
	}

	eye = m_engine->RetEyePt();
	if ( pos.y > eye.y )  // seen from below?
	{
		angle.x = -Math::PI/2.0f;
	}
#endif

	Math::LoadRotationXZYMatrix(matrix, angle);
	matrix.Set(1, 4, pos.x);
	matrix.Set(2, 4, pos.y);
	matrix.Set(3, 4, pos.z);
	{
	  D3DMATRIX mat = MAT_TO_D3DMAT(matrix);
	  m_pD3DDevice->SetTransform(D3DTRANSFORMSTATE_WORLD, &mat);
	}

	n = Math::Vector(0.0f, 0.0f, -1.0f);

	dim.x = m_particule[i].dim.x * m_particule[i].zoom;
	dim.y = m_particule[i].dim.y * m_particule[i].zoom;

	corner[0].x =  dim.x;
	corner[0].y =  dim.y;
	corner[0].z =  0.0f;

	corner[1].x = -dim.x;
	corner[1].y =  dim.y;
	corner[1].z =  0.0f;

	corner[2].x =  dim.x;
	corner[2].y = -dim.y;
	corner[2].z =  0.0f;

	corner[3].x = -dim.x;
	corner[3].y = -dim.y;
	corner[3].z =  0.0f;

	vertex[0] = D3DVERTEX2(corner[1], n, m_particule[i].texSup.x, m_particule[i].texSup.y);
	vertex[1] = D3DVERTEX2(corner[0], n, m_particule[i].texInf.x, m_particule[i].texSup.y);
	vertex[2] = D3DVERTEX2(corner[3], n, m_particule[i].texSup.x, m_particule[i].texInf.y);
	vertex[3] = D3DVERTEX2(corner[2], n, m_particule[i].texInf.x, m_particule[i].texInf.y);

	m_pD3DDevice->DrawPrimitive(D3DPT_TRIANGLESTRIP, D3DFVF_VERTEX2, vertex, 4, NULL);
	m_engine->AddStatisticTriangle(2);
}

// Draw a particle to a flat sheet of fog.

void CParticule::DrawParticuleFog(int i)
{
	CObject*		object;
	D3DVERTEX2		vertex[4];	// 2 triangles
	Math::Matrix		matrix;
	Math::Vector		corner[4], pos, n, angle, eye;
	Math::Point			dim, zoom;

	if ( !m_engine->RetFog() )  return;
	if ( m_particule[i].intensity == 0.0f )  return;

	pos = m_particule[i].pos;

	dim.x = m_particule[i].dim.x;
	dim.y = m_particule[i].dim.y;

	if ( m_particule[i].type == PARTIFOG0 ||
		 m_particule[i].type == PARTIFOG2 ||
		 m_particule[i].type == PARTIFOG4 ||
		 m_particule[i].type == PARTIFOG6 )
	{
//?		pos.x += sinf(m_particule[i].zoom*1.2f)*dim.x*0.1f;
//?		pos.y += cosf(m_particule[i].zoom*1.5f)*dim.y*0.1f;
		zoom.x = 1.0f+sinf(m_particule[i].zoom*2.0f)/6.0f;
		zoom.y = 1.0f+cosf(m_particule[i].zoom*2.7f)/6.0f;
	}
	if ( m_particule[i].type == PARTIFOG1 ||
		 m_particule[i].type == PARTIFOG3 ||
		 m_particule[i].type == PARTIFOG5 ||
		 m_particule[i].type == PARTIFOG7 )
	{
//?		pos.x += sinf(m_particule[i].zoom*1.0f)*dim.x*0.1f;
//?		pos.y += cosf(m_particule[i].zoom*1.3f)*dim.y*0.1f;
		zoom.x = 1.0f+sinf(m_particule[i].zoom*3.0f)/6.0f;
		zoom.y = 1.0f+cosf(m_particule[i].zoom*3.7f)/6.0f;
	}

	dim.x *= zoom.x;
	dim.y *= zoom.y;

	object = m_particule[i].objLink;
	if ( object != 0 )
	{
		pos += object->RetPosition(0);
	}

	angle.x = Math::PI/2.0f;
	angle.y = 0.0f;
	angle.z = m_particule[i].angle;

	if ( m_engine->RetRankView() == 1 )  // underwater?
	{
		pos.y -= 1.0f;
	}

	eye = m_engine->RetEyePt();
	if ( pos.y > eye.y )  // seen from below?
	{
		angle.x = -Math::PI/2.0f;
	}

	Math::LoadRotationXZYMatrix(matrix, angle);
	matrix.Set(1, 4, pos.x);
	matrix.Set(2, 4, pos.y);
	matrix.Set(3, 4, pos.z);
	{
	  D3DMATRIX mat = MAT_TO_D3DMAT(matrix);
	  m_pD3DDevice->SetTransform(D3DTRANSFORMSTATE_WORLD, &mat);
	}

	n = Math::Vector(0.0f, 0.0f, -1.0f);

	corner[0].x =  dim.x;
	corner[0].y =  dim.y;
	corner[0].z =  0.0f;

	corner[1].x = -dim.x;
	corner[1].y =  dim.y;
	corner[1].z =  0.0f;

	corner[2].x =  dim.x;
	corner[2].y = -dim.y;
	corner[2].z =  0.0f;

	corner[3].x = -dim.x;
	corner[3].y = -dim.y;
	corner[3].z =  0.0f;

	vertex[0] = D3DVERTEX2(corner[1], n, m_particule[i].texSup.x, m_particule[i].texSup.y);
	vertex[1] = D3DVERTEX2(corner[0], n, m_particule[i].texInf.x, m_particule[i].texSup.y);
	vertex[2] = D3DVERTEX2(corner[3], n, m_particule[i].texSup.x, m_particule[i].texInf.y);
	vertex[3] = D3DVERTEX2(corner[2], n, m_particule[i].texInf.x, m_particule[i].texInf.y);

	m_pD3DDevice->DrawPrimitive(D3DPT_TRIANGLESTRIP, D3DFVF_VERTEX2, vertex, 4, NULL);
	m_engine->AddStatisticTriangle(2);
}

// Draw a particle in the form of radius.

void CParticule::DrawParticuleRay(int i)
{
	CObject*		object;
	D3DVERTEX2		vertex[4];	// 2 triangles
	Math::Matrix		matrix;
	Math::Vector		corner[4], eye, pos, goal, n, angle, proj;
	Math::Point			dim, texInf, texSup;
	bool			bLeft;
	float			a, len, adv, prop, vario1, vario2;
	int				r, rank, step, first, last;

	if ( m_particule[i].zoom == 0.0f )  return;
	if ( m_particule[i].intensity == 0.0f )  return;

	eye = m_engine->RetEyePt();
	pos = m_particule[i].pos;
	goal = m_particule[i].goal;

	object = m_particule[i].objLink;
	if ( object != 0 )
	{
		pos += object->RetPosition(0);
	}

	a = Math::RotateAngle(Math::Point(pos.x,pos.z), Math::Point(goal.x,goal.z), Math::Point(eye.x,eye.z));
	bLeft = (a < Math::PI);

	proj = Math::Projection(pos, goal, eye);
	angle.x = -Math::RotateAngle(Math::DistanceProjected(proj, eye), proj.y-eye.y);
	angle.y = Math::RotateAngle(pos.z-goal.z, pos.x-goal.x)+Math::PI/2.0f;
	angle.z = -Math::RotateAngle(Math::DistanceProjected(pos, goal), pos.y-goal.y);
	if ( bLeft )  angle.x = -angle.x;

	Math::LoadRotationZXYMatrix(matrix, angle);
	matrix.Set(1, 4, pos.x);
	matrix.Set(2, 4, pos.y);
	matrix.Set(3, 4, pos.z);
	{
	  D3DMATRIX mat = MAT_TO_D3DMAT(matrix);
	  m_pD3DDevice->SetTransform(D3DTRANSFORMSTATE_WORLD, &mat);
	}

	n = Math::Vector(0.0f, 0.0f, bLeft?1.0f:-1.0f);

	dim.x = m_particule[i].dim.x * m_particule[i].zoom;
	dim.y = m_particule[i].dim.y * m_particule[i].zoom;

	if ( bLeft )  dim.y = -dim.y;

	len = Math::Distance(pos, goal);
	adv = 0.0f;

	step = (int)(len/(dim.x*2.0f))+1;

	if ( step == 1 )
	{
		vario1 = 1.0f;
		vario2 = 1.0f;
	}
	else
	{
		vario1 = 0.0f;
		vario2 = 2.0f;
	}

	if ( m_particule[i].type == PARTIRAY2 )
	{
		first = 0;
		last  = step;
		vario1 = 0.0f;
		vario2 = 0.0f;
	}
	else if ( m_particule[i].type == PARTIRAY3 )
	{
		if ( m_particule[i].time < m_particule[i].duration*0.40f )
		{
			prop = m_particule[i].time / (m_particule[i].duration*0.40f);
			first = 0;
			last  = (int)(prop*step);
		}
		else if ( m_particule[i].time < m_particule[i].duration*0.60f )
		{
			first = 0;
			last  = step;
		}
		else
		{
			prop = (m_particule[i].time-m_particule[i].duration*0.60f) / (m_particule[i].duration*0.40f);
			first = (int)(prop*step);
			last  = step;
		}
	}
	else
	{
		if ( m_particule[i].time < m_particule[i].duration*0.50f )
		{
			prop = m_particule[i].time / (m_particule[i].duration*0.50f);
			first = 0;
			last  = (int)(prop*step);
		}
		else if ( m_particule[i].time < m_particule[i].duration*0.75f )
		{
			first = 0;
			last  = step;
		}
		else
		{
			prop = (m_particule[i].time-m_particule[i].duration*0.75f) / (m_particule[i].duration*0.25f);
			first = (int)(prop*step);
			last  = step;
		}
	}

	corner[0].x = adv;
	corner[2].x = adv;
	corner[0].y =  dim.y;
	corner[2].y = -dim.y;
	corner[0].z = (Math::Rand()-0.5f)*vario1;
	corner[1].z = (Math::Rand()-0.5f)*vario1;
	corner[2].z = (Math::Rand()-0.5f)*vario1;
	corner[3].z = (Math::Rand()-0.5f)*vario1;

	for ( rank=0 ; rank<step ; rank++ )
	{
		corner[1].x = corner[0].x;
		corner[3].x = corner[2].x;
		corner[0].x = adv+dim.x*2.0f+(Math::Rand()-0.5f)*vario2;
		corner[2].x = adv+dim.x*2.0f+(Math::Rand()-0.5f)*vario2;

		corner[1].y = corner[0].y;
		corner[3].y = corner[2].y;
		corner[0].y =  dim.y+(Math::Rand()-0.5f)*vario2;
		corner[2].y = -dim.y+(Math::Rand()-0.5f)*vario2;

		if ( rank >= first && rank <= last )
		{
#if 1
			texInf = m_particule[i].texInf;
			texSup = m_particule[i].texSup;

			r = rand()%16;
			texInf.x += 0.25f*(r/4);
			texSup.x += 0.25f*(r/4);
			if ( r%2 < 1 && adv > 0.0f && m_particule[i].type != PARTIRAY1 )
			{
				Math::Swap(texInf.x, texSup.x);
			}
			if ( r%4 < 2 )
			{
				Math::Swap(texInf.y, texSup.y);
			}
#else
			texInf.x = Math::Mod(texInf.x+0.25f, 1.0f);
			texSup.x = Math::Mod(texSup.x+0.25f, 1.0f);
#endif

			vertex[0] = D3DVERTEX2(corner[1], n, texSup.x, texSup.y);
			vertex[1] = D3DVERTEX2(corner[0], n, texInf.x, texSup.y);
			vertex[2] = D3DVERTEX2(corner[3], n, texSup.x, texInf.y);
			vertex[3] = D3DVERTEX2(corner[2], n, texInf.x, texInf.y);

			m_pD3DDevice->DrawPrimitive(D3DPT_TRIANGLESTRIP, D3DFVF_VERTEX2, vertex, 4, NULL);
			m_engine->AddStatisticTriangle(2);
		}
		adv += dim.x*2.0f;
	}
}

// Draws a spherical particle.

void CParticule::DrawParticuleSphere(int i)
{
	D3DVERTEX2		vertex[2*16*(16+1)];  // triangles
	Math::Matrix		matrix, rot;
	Math::Vector		angle, v0, v1;
	Math::Point			ts, ti;
	float			zoom, deltaRingAngle, deltaSegAngle;
	float			r0,r1, tu0,tv0, tu1,tv1;
	int				j, ring, seg, numRings, numSegments;

	zoom = m_particule[i].zoom;
#if 0
	if ( !m_engine->RetStateColor() && m_particule[i].intensity < 0.5f )
	{
		zoom *= m_particule[i].intensity/0.5f;
	}
#endif

	if ( zoom == 0.0f )  return;

	m_engine->SetState(D3DSTATETTb|D3DSTATE2FACE|D3DSTATEWRAP, RetColor(m_particule[i].intensity));

	matrix.LoadIdentity();
	matrix.Set(1, 1, zoom);
	matrix.Set(2, 2, zoom);
	matrix.Set(3, 3, zoom);
	matrix.Set(1, 4, m_particule[i].pos.x);
	matrix.Set(2, 4, m_particule[i].pos.y);
	matrix.Set(3, 4, m_particule[i].pos.z);

	if ( m_particule[i].angle != 0.0f )
	{
		angle.x = m_particule[i].angle*0.4f;
		angle.y = m_particule[i].angle*1.0f;
		angle.z = m_particule[i].angle*0.7f;
		Math::LoadRotationZXYMatrix(rot, angle);
		matrix = Math::MultiplyMatrices(rot, matrix);
	}

	{
	  D3DMATRIX mat = MAT_TO_D3DMAT(matrix);
	  m_pD3DDevice->SetTransform(D3DTRANSFORMSTATE_WORLD, &mat);
	}

	ts.x = m_particule[i].texSup.x;
	ts.y = m_particule[i].texSup.y;
	ti.x = m_particule[i].texInf.x;
	ti.y = m_particule[i].texInf.y;

	// Choose a tesselation level.
	if ( m_particule[i].type == PARTISPHERE3 ||
		 m_particule[i].type == PARTISPHERE5 )
	{
		numRings	= 16;
		numSegments = 16;
	}
	else
	{
		numRings	= 8;
		numSegments = 10;
	}

	// Establish constants used in sphere generation.
	deltaRingAngle = Math::PI/numRings;
	deltaSegAngle  = 2.0f*Math::PI/numSegments;

	// Generate the group of rings for the sphere.
	j = 0;
	for ( ring=0 ; ring<numRings ; ring++ )
	{	 
		r0   = sinf((ring+0)*deltaRingAngle);
		r1   = sinf((ring+1)*deltaRingAngle);
		v0.y = cosf((ring+0)*deltaRingAngle);
		v1.y = cosf((ring+1)*deltaRingAngle);

		tv0 = (ring+0)/(float)numRings;
		tv1 = (ring+1)/(float)numRings;
		tv0 = ts.y+(ti.y-ts.y)*tv0;
		tv1 = ts.y+(ti.y-ts.y)*tv1;

		// Generate the group of segments for the current ring.
		for ( seg=0 ; seg<numSegments+1 ; seg++ )
		{
			v0.x = r0*sinf(seg*deltaSegAngle);
			v0.z = r0*cosf(seg*deltaSegAngle);
			v1.x = r1*sinf(seg*deltaSegAngle);
			v1.z = r1*cosf(seg*deltaSegAngle);

			// Add two vertices to the strip which makes up the sphere.
			tu0 = ((float)seg)/numSegments;
			tu0 = ts.x+(ti.x-ts.x)*tu0;
			tu1 = tu0;

			vertex[j++] = D3DVERTEX2(v0,v0, tu0,tv0);
			vertex[j++] = D3DVERTEX2(v1,v1, tu1,tv1);
		}
	}
	
	m_pD3DDevice->DrawPrimitive(D3DPT_TRIANGLESTRIP, D3DFVF_VERTEX2, vertex, j, NULL);
	m_engine->AddStatisticTriangle(j);

	m_engine->SetState(D3DSTATETTb, RetColor(m_particule[i].intensity));
}

// Returns the height depending on the progress.

float ProgressCylinder(float progress)
{
	if ( progress < 0.5f )
	{
		return 1.0f - (powf(1.0f-progress*2.0f, 2.0f));
	}
	else
	{
		return 1.0f - (powf(progress*2.0f-1.0f, 2.0f));
	}
}

// Draws a cylindrical particle.

void CParticule::DrawParticuleCylinder(int i)
{
	D3DVERTEX2		vertex[2*5*(10+1)];  // triangles
	Math::Matrix		matrix, rot;
	Math::Vector		angle, v0, v1;
	Math::Point			ts, ti;
	float			progress, zoom, diam, deltaSegAngle, h[6], d[6];
	float			r0,r1, tu0,tv0, tu1,tv1, p1, p2, pp;
	int				j, ring, seg, numRings, numSegments;

	progress = m_particule[i].zoom;
	zoom = m_particule[i].dim.x;
	diam = m_particule[i].dim.y;
	if ( progress >= 1.0f || zoom == 0.0f )  return;

	m_engine->SetState(D3DSTATETTb|D3DSTATE2FACE|D3DSTATEWRAP, RetColor(m_particule[i].intensity));

	matrix.LoadIdentity();
	matrix.Set(1, 1, zoom);
	matrix.Set(2, 2, zoom);
	matrix.Set(3, 3, zoom);
	matrix.Set(1, 4, m_particule[i].pos.x);
	matrix.Set(2, 4, m_particule[i].pos.y);
	matrix.Set(3, 4, m_particule[i].pos.z);

	{
	  D3DMATRIX mat = MAT_TO_D3DMAT(matrix);
	  m_pD3DDevice->SetTransform(D3DTRANSFORMSTATE_WORLD, &mat);
	}

	ts.x = m_particule[i].texSup.x;
	ts.y = m_particule[i].texSup.y;
	ti.x = m_particule[i].texInf.x;
	ti.y = m_particule[i].texInf.y;

	numRings = 5;
	numSegments = 10;
	deltaSegAngle  = 2.0f*Math::PI/numSegments;

	if ( m_particule[i].type == PARTIPLOUF0 )
	{
#if 0
		if ( progress <= 0.5f )
		{
			p1 = progress/0.5f;  // front
			p2 = 0.0f;  // back
		}
		else
		{
			p1 = 1.0f;  // front
			p2 = (progress-0.5f)/0.5f;  // back
			ts.y += (ti.y-ts.y)*p2;
		}
#else
		p1 = progress;  // front
		p2 = powf(progress, 5.0f);  // back
#endif

		for ( ring=0 ; ring<=numRings ; ring++ )
		{
			pp = p2+(p1-p2)*((float)ring/numRings);
			d[ring] = diam/zoom+pp*2.0f;
			h[ring] = ProgressCylinder(pp);
		}
	}

	j = 0;
	for ( ring=0 ; ring<numRings ; ring++ )
	{
		r0   = 1.0f*d[ring+0];  // radius at the base
		r1   = 1.0f*d[ring+1];  // radius at the top
		v0.y = 1.0f*h[ring+0];  // bottom
		v1.y = 1.0f*h[ring+1];  // top

		tv0 = 1.0f-(ring+0)*(1.0f/numRings);
		tv1 = 1.0f-(ring+1)*(1.0f/numRings);
		tv0 = ts.y+(ti.y-ts.y)*tv0;
		tv1 = ts.y+(ti.y-ts.y)*tv1;

		for ( seg=0 ; seg<numSegments+1 ; seg++ )
		{
			v0.x = r0*sinf(seg*deltaSegAngle);
			v0.z = r0*cosf(seg*deltaSegAngle);
			v1.x = r1*sinf(seg*deltaSegAngle);
			v1.z = r1*cosf(seg*deltaSegAngle);

//?			tu0 = ((float)seg)/numSegments;
			tu0 = (seg%2)?0.0f:1.0f;
			tu0 = ts.x+(ti.x-ts.x)*tu0;
			tu1 = tu0;

			vertex[j++] = D3DVERTEX2(v0,v0, tu0,tv0);
			vertex[j++] = D3DVERTEX2(v1,v1, tu1,tv1);
		}
	}
	
	m_pD3DDevice->DrawPrimitive(D3DPT_TRIANGLESTRIP, D3DFVF_VERTEX2, vertex, j, NULL);
	m_engine->AddStatisticTriangle(j);

	m_engine->SetState(D3DSTATETTb, RetColor(m_particule[i].intensity));
}

// Draws a tire mark.

void CParticule::DrawParticuleWheel(int i)
{
	Math::Vector	pos[4], center;
	D3DVERTEX2	vertex[4];	// 2 triangles
	Math::Vector	n;
	Math::Point		ts, ti;
	float		dist, dp;

	dist = Math::DistanceProjected(m_engine->RetEyePt(), m_wheelTrace[i].pos[0]);
	if ( dist > 300.0f )  return;

	pos[0] = m_wheelTrace[i].pos[0];
	pos[1] = m_wheelTrace[i].pos[1];
	pos[2] = m_wheelTrace[i].pos[2];
	pos[3] = m_wheelTrace[i].pos[3];

	if ( m_wheelTrace[i].type == PARTITRACE0 )  // white ground track?
	{
		ts.x =   8.0f/256.0f;
		ts.y = 224.0f/256.0f;
	}
	else if ( m_wheelTrace[i].type == PARTITRACE1 )  // black ground track?
	{
		ts.x =   0.0f/256.0f;
		ts.y = 224.0f/256.0f;
	}
	else if ( m_wheelTrace[i].type == PARTITRACE2 )  // gray ground track?
	{
		ts.x =   0.0f/256.0f;
		ts.y = 232.0f/256.0f;
	}
	else if ( m_wheelTrace[i].type == PARTITRACE3 )  // light gray ground track?
	{
		ts.x =   8.0f/256.0f;
		ts.y = 232.0f/256.0f;
	}
	else if ( m_wheelTrace[i].type == PARTITRACE4 )  // red ground track?
	{
		ts.x =  32.0f/256.0f;
		ts.y = 224.0f/256.0f;
	}
	else if ( m_wheelTrace[i].type == PARTITRACE5 )  // pink ground track?
	{
		ts.x =  40.0f/256.0f;
		ts.y = 224.0f/256.0f;
	}
	else if ( m_wheelTrace[i].type == PARTITRACE6 )  // violet ground track?
	{
		ts.x =  32.0f/256.0f;
		ts.y = 232.0f/256.0f;
	}
	else if ( m_wheelTrace[i].type == PARTITRACE7 )  // orange ground track?
	{
		ts.x =  40.0f/256.0f;
		ts.y = 232.0f/256.0f;
	}
	else if ( m_wheelTrace[i].type == PARTITRACE8 )  // yellow ground track?
	{
		ts.x =  16.0f/256.0f;
		ts.y = 224.0f/256.0f;
	}
	else if ( m_wheelTrace[i].type == PARTITRACE9 )  // beige ground track?
	{
		ts.x =  24.0f/256.0f;
		ts.y = 224.0f/256.0f;
	}
	else if ( m_wheelTrace[i].type == PARTITRACE10 )  // brown ground track?
	{
		ts.x =  16.0f/256.0f;
		ts.y = 232.0f/256.0f;
	}
	else if ( m_wheelTrace[i].type == PARTITRACE11 )  // skin ground track?
	{
		ts.x =  24.0f/256.0f;
		ts.y = 232.0f/256.0f;
	}
	else if ( m_wheelTrace[i].type == PARTITRACE12 )  // green ground track?
	{
		ts.x =  48.0f/256.0f;
		ts.y = 224.0f/256.0f;
	}
	else if ( m_wheelTrace[i].type == PARTITRACE13 )  // light green ground track?
	{
		ts.x =  56.0f/256.0f;
		ts.y = 224.0f/256.0f;
	}
	else if ( m_wheelTrace[i].type == PARTITRACE14 )  // blue ground track?
	{
		ts.x =  48.0f/256.0f;
		ts.y = 232.0f/256.0f;
	}
	else if ( m_wheelTrace[i].type == PARTITRACE15 )  // light blue ground track?
	{
		ts.x =  56.0f/256.0f;
		ts.y = 232.0f/256.0f;
	}
	else if ( m_wheelTrace[i].type == PARTITRACE16 )  // black arrow ground track?
	{
		ts.x = 160.0f/256.0f;
		ts.y = 224.0f/256.0f;
	}
	else if ( m_wheelTrace[i].type == PARTITRACE17 )  // red arrow ground track?
	{
		ts.x = 176.0f/256.0f;
		ts.y = 224.0f/256.0f;
	}
	else
	{
		return;
	}

	if ( m_wheelTrace[i].type == PARTITRACE16 ||
		 m_wheelTrace[i].type == PARTITRACE17 )
	{
		ti.x = ts.x+16.0f/256.0f;
		ti.y = ts.y+16.0f/256.0f;
	}
	else
	{
		ti.x = ts.x+8.0f/256.0f;
		ti.y = ts.y+8.0f/256.0f;
	}

	dp = (1.0f/256.0f)/2.0f;
	ts.x = ts.x+dp;
	ts.y = ts.y+dp;
	ti.x = ti.x-dp;
	ti.y = ti.y-dp;

	n = Math::Vector(0.0f, 1.0f, 0.0f);

	vertex[0] = D3DVERTEX2(pos[0], n, ts.x, ts.y);
	vertex[1] = D3DVERTEX2(pos[1], n, ti.x, ts.y);
	vertex[2] = D3DVERTEX2(pos[2], n, ts.x, ti.y);
	vertex[3] = D3DVERTEX2(pos[3], n, ti.x, ti.y);

	m_pD3DDevice->DrawPrimitive(D3DPT_TRIANGLESTRIP, D3DFVF_VERTEX2, vertex, 4, NULL);
	m_engine->AddStatisticTriangle(2);
}

// Draws all the particles.

void CParticule::DrawParticule(int sheet)
{
	D3DMATERIAL7	mat;
	Math::Matrix		matrix;
	bool			bLoadTexture;
	char			name[20];
	int				state, t, i, j, r;

	m_pD3DDevice->SetRenderState(D3DRENDERSTATE_AMBIENT, 0xffffffff);
	m_pD3DDevice->SetRenderState(D3DRENDERSTATE_LIGHTING, true);
//?	m_pD3DDevice->SetRenderState(D3DRENDERSTATE_ZENABLE, false);
	m_pD3DDevice->SetRenderState(D3DRENDERSTATE_ZWRITEENABLE, false);

	// Draw the basic particles of triangles.
	if ( m_totalInterface[0][sheet] > 0 )
	{
		for ( i=0 ; i<MAXPARTICULE ; i++ )
		{
			if ( !m_particule[i].bUsed )  continue;
			if ( m_particule[i].sheet != sheet )  continue;
			if ( m_particule[i].type == PARTIPART )  continue;

			m_engine->SetTexture(m_triangle[i].texName1);
			m_engine->SetMaterial(m_triangle[i].material);
			m_engine->SetState(m_triangle[i].state);
			DrawParticuleTriangle(i);
		}
	}

	// Draw the particles was calculated based on edge.
	m_pD3DDevice->SetRenderState(D3DRENDERSTATE_LIGHTING, false);

	ZeroMemory( &mat, sizeof(D3DMATERIAL7) );
	mat.diffuse.r = 1.0f;
	mat.diffuse.g = 1.0f;
	mat.diffuse.b = 1.0f;  // white
	mat.ambient.r = 0.5f;
	mat.ambient.g = 0.5f;
	mat.ambient.b = 0.5f;
	m_engine->SetMaterial(mat);

	// Draw tire marks.
	if ( m_wheelTraceTotal > 0 && sheet == SH_WORLD )
	{
#if _POLISH
		m_engine->SetTexture("textp.tga");
#else
		m_engine->SetTexture("text.tga");
#endif
		m_engine->SetState(D3DSTATETTw);
//?		m_engine->SetState(D3DSTATENORMAL);
		matrix.LoadIdentity();
		{
		  D3DMATRIX mat = MAT_TO_D3DMAT(matrix);
		  m_pD3DDevice->SetTransform(D3DTRANSFORMSTATE_WORLD, &mat);
		}
		for ( i=0 ; i<m_wheelTraceTotal ; i++ )
		{
			DrawParticuleWheel(i);
		}
	}

//?	for ( t=1 ; t<MAXPARTITYPE ; t++ )
	for ( t=MAXPARTITYPE-1 ; t>=1 ; t-- )  // black behind!
	{
		if ( m_totalInterface[t][sheet] == 0 )  continue;

		bLoadTexture = false;

		if ( t == 4 )  state = D3DSTATETTw;  // text.tga
		else           state = D3DSTATETTb;  // effect[00..02].tga
		m_engine->SetState(state);

		for ( j=0 ; j<MAXPARTICULE ; j++ )
		{
			i = MAXPARTICULE*t+j;
			if ( !m_particule[i].bUsed )  continue;
			if ( m_particule[i].sheet != sheet )  continue;

			if ( !bLoadTexture )
			{
				NameParticule(name, t);
				m_engine->SetTexture(name);
				bLoadTexture = true;
			}

			r = m_particule[i].trackRank;
			if ( r != -1 )
			{
				m_engine->SetState(state);
				TrackDraw(r, m_particule[i].type);  // draws the drag
				if ( !m_track[r].bDrawParticule )  continue;
			}

			m_engine->SetState(state, RetColor(m_particule[i].intensity));

			if ( m_particule[i].bRay )  // ray?
			{
				DrawParticuleRay(i);
			}
			else if ( m_particule[i].type == PARTIFLIC  ||  // circle in the water?
					  m_particule[i].type == PARTISHOW  ||
					  m_particule[i].type == PARTICHOC  ||
					  m_particule[i].type == PARTIGFLAT )
			{
				DrawParticuleFlat(i);
			}
			else if ( m_particule[i].type >= PARTIFOG0 &&
					  m_particule[i].type <= PARTIFOG9 )
			{
				DrawParticuleFog(i);
			}
			else if ( m_particule[i].type >= PARTISPHERE0 &&
					  m_particule[i].type <= PARTISPHERE9 )  // sphere?
			{
				DrawParticuleSphere(i);
			}
			else if ( m_particule[i].type >= PARTIPLOUF0 &&
					  m_particule[i].type <= PARTIPLOUF4 )  // cylinder?
			{
				DrawParticuleCylinder(i);
			}
			else	// normal?
			{
				DrawParticuleNorm(i);
			}
		}
	}

//?	m_pD3DDevice->SetRenderState(D3DRENDERSTATE_ZENABLE, true);
	m_pD3DDevice->SetRenderState(D3DRENDERSTATE_ZWRITEENABLE, true);
}


// Seeks if an object collided with a bullet.

CObject* CParticule::SearchObjectGun(Math::Vector old, Math::Vector pos,
									 ParticuleType type, CObject *father)
{
	CObject		*pObj, *pBest;
	Math::Vector	box1, box2, oPos, p;
	ObjectType	oType;
	bool		bShield;
	float		min, oRadius, dist, shieldRadius;
	int			i, j;
	bool		bHimself;

	if ( m_main->RetMovieLock() )  return 0;  // current movie?

	bHimself = m_main->RetHimselfDamage();

	min = 5.0f;
	if ( type == PARTIGUN2 ) min = 2.0f;  // shooting insect?
	if ( type == PARTIGUN3 ) min = 3.0f;  // suiciding spider?

	box1 = old;
	box2 = pos;
	if ( box1.x > box2.x )  Math::Swap(box1.x, box2.x);  // box1 < box2
	if ( box1.y > box2.y )  Math::Swap(box1.y, box2.y);
	if ( box1.z > box2.z )  Math::Swap(box1.z, box2.z);
	box1.x -= min;
	box1.y -= min;
	box1.z -= min;
	box2.x += min;
	box2.y += min;
	box2.z += min;

	pBest = 0;
	bShield = false;
	for ( i=0 ; i<1000000 ; i++ )
	{
		pObj = (CObject*)m_iMan->SearchInstance(CLASS_OBJECT, i);
		if ( pObj == 0 )  break;

		if ( !pObj->RetActif() )  continue;  // inactive?
		if ( pObj == father )  continue;

		oType = pObj->RetType();

		if ( oType == OBJECT_TOTO )  continue;

		if ( type == PARTIGUN1 )  // fireball shooting?
		{
			if ( oType == OBJECT_MOTHER )  continue;
			if ( bHimself )  // damage is oneself?
			{
				if ( !IsAlien(oType) &&
					 !IsSoft(oType)  )  continue;
			}
			else	// damage only to enemies?
			{
				if ( !IsAlien(oType) )  continue;
			}
		}
		else if ( type == PARTIGUN2 )  // shooting insect?
		{
			if ( !IsSoft(oType) )  continue;
		}
		else if ( type == PARTIGUN3 )  // suiciding spider?
		{
			if ( !IsSoft(oType) )  continue;
		}
		else if ( type == PARTIGUN4 )  // orgaball shooting?
		{
			if ( oType == OBJECT_MOTHER )  continue;
			if ( bHimself )  // damage is oneself?
			{
				if ( !IsAlien(oType) &&
					 !IsSoft(oType)  )  continue;
			}
			else	// damage only to enemies?
			{
				if ( !IsAlien(oType) )  continue;
			}
		}
		else if ( type == PARTITRACK11 )  // phazer shooting?
		{
			if ( bHimself )  // damage is oneself?
			{
				if ( !IsAlien(oType) &&
					 !IsSoft(oType)  )  continue;
			}
			else	// damage only to enemies?
			{
				if ( !IsAlien(oType) )  continue;
			}
		}
		else
		{
			continue;
		}

		oPos = pObj->RetPosition(0);

		if ( type == PARTIGUN2 ||  // shooting insect?
			 type == PARTIGUN3 )   // suiciding spider?
		{
			// Test if the ball is entered into the sphere of a shield.
			shieldRadius = pObj->RetShieldRadius();
			if ( shieldRadius > 0.0f )
			{
				dist = Math::Distance(oPos, pos);
				if ( dist <= shieldRadius )
				{
					pBest = pObj;
					bShield = true;
				}
			}
		}
		if ( bShield )  continue;

		// Test the center of the object, which is necessary for objects
		// that have no sphere in the center (station).
		dist = Math::Distance(oPos, pos)-4.0f;
		if ( dist < min )
		{
			pBest = pObj;
		}

		// Test with all spheres of the object.
		j = 0;
		while ( pObj->GetCrashSphere(j++, oPos, oRadius) )
		{
			if ( oPos.x+oRadius < box1.x || oPos.x-oRadius > box2.x ||  // outside the box?
				 oPos.y+oRadius < box1.y || oPos.y-oRadius > box2.y ||
				 oPos.z+oRadius < box1.z || oPos.z-oRadius > box2.z )  continue;

			p = Math::Projection(old, pos, oPos);
			dist = Math::Distance(p, oPos)-oRadius;
			if ( dist < min )
			{
				pBest = pObj;
			}
		}
	}

	return pBest;
}

// Seeks if an object collided with a ray.

CObject* CParticule::SearchObjectRay(Math::Vector pos, Math::Vector goal,
									 ParticuleType type, CObject *father)
{
	CObject*	pObj;
	Math::Vector	box1, box2, oPos, p;
	ObjectType	oType;
	float		min, dist;
	int			i;

	if ( m_main->RetMovieLock() )  return 0;  // current movie?

	min = 10.0f;

	box1 = pos;
	box2 = goal;
	if ( box1.x > box2.x )  Math::Swap(box1.x, box2.x);  // box1 < box2
	if ( box1.y > box2.y )  Math::Swap(box1.y, box2.y);
	if ( box1.z > box2.z )  Math::Swap(box1.z, box2.z);
	box1.x -= min;
	box1.y -= min;
	box1.z -= min;
	box2.x += min;
	box2.y += min;
	box2.z += min;

	for ( i=0 ; i<1000000 ; i++ )
	{
		pObj = (CObject*)m_iMan->SearchInstance(CLASS_OBJECT, i);
		if ( pObj == 0 )  break;

		if ( !pObj->RetActif() )  continue;  // inactive?
		if ( pObj == father )  continue;

		oType = pObj->RetType();

		if ( oType == OBJECT_TOTO )  continue;

		if ( type  == PARTIRAY1       &&
			 oType != OBJECT_MOBILEtg &&
			 oType != OBJECT_TEEN28   &&
			 oType != OBJECT_TEEN31   &&
			 oType != OBJECT_ANT      &&
			 oType != OBJECT_SPIDER   &&
			 oType != OBJECT_BEE      &&
			 oType != OBJECT_WORM     &&
			 oType != OBJECT_MOTHER   &&
			 oType != OBJECT_NEST     )  continue;

		oPos = pObj->RetPosition(0);

		if ( oPos.x < box1.x || oPos.x > box2.x ||  // outside the box?
			 oPos.y < box1.y || oPos.y > box2.y ||
			 oPos.z < box1.z || oPos.z > box2.z )  continue;

		p = Math::Projection(pos, goal, oPos);
		dist = Math::Distance(p, oPos);
		if ( dist < min )  return pObj;
	}

	return 0;
}


// Sounded one.

void CParticule::Play(Sound sound, Math::Vector pos, float amplitude)
{
	if ( m_sound == 0 )
	{
		m_sound = (CSound*)m_iMan->SearchInstance(CLASS_SOUND);
	}

	m_sound->Play(sound, pos, amplitude);
}



// Seeks the color if you're in the fog.
// Returns black if you're not in the fog.

D3DCOLORVALUE CParticule::RetFogColor(Math::Vector pos)
{
	D3DCOLORVALUE	result, color;
	float			dist, factor;
	int				fog, i;

	result.r = 0.0f;
	result.g = 0.0f;
	result.b = 0.0f;
	result.a = 0.0f;

	for ( fog=0 ; fog<m_fogTotal ; fog++ )
	{
		i = m_fog[fog];  // i = rank of the particle

		if ( pos.y >= m_particule[i].pos.y+FOG_HSUP )  continue;
		if ( pos.y <= m_particule[i].pos.y-FOG_HINF )  continue;

		dist = Math::DistanceProjected(pos, m_particule[i].pos);
		if ( dist >= m_particule[i].dim.x*1.5f )  continue;

		// Calculates the horizontal distance.
		factor = 1.0f-powf(dist/(m_particule[i].dim.x*1.5f), 4.0f);

		// Calculates the vertical distance.
		if ( pos.y > m_particule[i].pos.y )
		{
			factor *= 1.0f-(pos.y-m_particule[i].pos.y)/FOG_HSUP;
		}
		else
		{
			factor *= 1.0f-(m_particule[i].pos.y-pos.y)/FOG_HINF;
		}

		factor *= 0.3f;

		if ( m_particule[i].type == PARTIFOG0 ||
			 m_particule[i].type == PARTIFOG1 )  // blue?
		{
			color.r = 0.0f;
			color.g = 0.5f;
			color.b = 1.0f;
		}
		else if ( m_particule[i].type == PARTIFOG2 ||
				  m_particule[i].type == PARTIFOG3 )  // red?
		{
			color.r = 2.0f;
			color.g = 1.0f;
			color.b = 0.0f;
		}
		else if ( m_particule[i].type == PARTIFOG4 ||
				  m_particule[i].type == PARTIFOG5 )  // white?
		{
			color.r = 1.0f;
			color.g = 1.0f;
			color.b = 1.0f;
		}
		else if ( m_particule[i].type == PARTIFOG6 ||
				  m_particule[i].type == PARTIFOG7 )  // yellow?
		{
			color.r = 0.8f;
			color.g = 1.0f;
			color.b = 0.4f;
		}
		else
		{
			color.r = 0.0f;
			color.g = 0.0f;
			color.b = 0.0f;
		}

		result.r += color.r*factor;
		result.g += color.g*factor;
		result.b += color.b*factor;
	}

	if ( result.r > 0.6f )  result.r = 0.6f;
	if ( result.g > 0.6f )  result.g = 0.6f;
	if ( result.b > 0.6f )  result.b = 0.6f;

	return result;
}


// Writes a file. BMP containing all the tire tracks.

bool CParticule::WriteWheelTrace(char *filename, int width, int height,
								 Math::Vector dl, Math::Vector ur)
{
	HDC				hDC;
	HDC				hDCImage;
	HBITMAP			hb;
	PBITMAPINFO		info;
	HBRUSH			hBrush;
	HPEN			hPen;
	HGDIOBJ			old;
	RECT			rect;
	COLORREF		color;
	Math::Point			pos[4];
	POINT			list[4];
	int				i;

	if ( !m_engine->GetRenderDC(hDC) )  return false;

	hDCImage = CreateCompatibleDC(hDC);
	if ( hDCImage == 0 )
	{
		m_engine->ReleaseRenderDC(hDC);
		return false;
	}

	hb = CreateCompatibleBitmap(hDC, width, height);
	if ( hb == 0 )
	{
		DeleteDC(hDCImage);
		m_engine->ReleaseRenderDC(hDC);
		return false;
	}

	SelectObject(hDCImage, hb);

	rect.left   = 0;
	rect.right  = width;
	rect.top    = 0;
	rect.bottom = height;
	FillRect(hDCImage, &rect, (HBRUSH)GetStockObject(WHITE_BRUSH));

	hPen = CreatePen(PS_NULL, 1, 0);
	SelectObject(hDCImage, hPen);

	for ( i=0 ; i<m_wheelTraceTotal ; i++ )
	{
		if ( m_wheelTrace[i].type == PARTITRACE0 )  // black ground track?
		{
			color = RGB(0,0,0);
		}
		else if ( m_wheelTrace[i].type == PARTITRACE1 )  // red ground track?
		{
			color = RGB(255,0,0);
		}
		else if ( m_wheelTrace[i].type == PARTITRACE2 )  // green ground track?
		{
			color = RGB(0,255,0);
		}
		else if ( m_wheelTrace[i].type == PARTITRACE3 )  // blue ground track?
		{
			color = RGB(0,0,255);
		}
		else if ( m_wheelTrace[i].type == PARTITRACE4 )  // cyan ground track?
		{
			color = RGB(0,255,255);
		}
		else if ( m_wheelTrace[i].type == PARTITRACE5 )  // magenta ground track?
		{
			color = RGB(255,0,255);
		}
		else if ( m_wheelTrace[i].type == PARTITRACE6 )  // yellow ground track?
		{
			color = RGB(255,255,0);
		}
		else
		{
			color = RGB(0,0,0);
		}
		hBrush = CreateSolidBrush(color);
		old = SelectObject(hDCImage, hBrush);

		pos[0].x = ((m_wheelTrace[i].pos[0].x-dl.x)*width)/(ur.x-dl.x);
		pos[0].y = ((m_wheelTrace[i].pos[0].z-dl.z)*width)/(ur.z-dl.z);
		pos[1].x = ((m_wheelTrace[i].pos[1].x-dl.x)*width)/(ur.x-dl.x);
		pos[1].y = ((m_wheelTrace[i].pos[1].z-dl.z)*width)/(ur.z-dl.z);
		pos[2].x = ((m_wheelTrace[i].pos[2].x-dl.x)*width)/(ur.x-dl.x);
		pos[2].y = ((m_wheelTrace[i].pos[2].z-dl.z)*width)/(ur.z-dl.z);
		pos[3].x = ((m_wheelTrace[i].pos[3].x-dl.x)*width)/(ur.x-dl.x);
		pos[3].y = ((m_wheelTrace[i].pos[3].z-dl.z)*width)/(ur.z-dl.z);

		list[0].x = (int)pos[0].x;
		list[0].y = (int)pos[0].y;
		list[1].x = (int)pos[1].x;
		list[1].y = (int)pos[1].y;
		list[2].x = (int)pos[3].x;
		list[2].y = (int)pos[3].y;
		list[3].x = (int)pos[2].x;
		list[3].y = (int)pos[2].y;
		Polygon(hDCImage, list, 4);

		if ( old != 0 )  SelectObject(hDCImage, old);
		DeleteObject(hBrush);
	}

	info = m_engine->CreateBitmapInfoStruct(hb);
	if ( info == 0 )
	{
		DeleteObject(hb);
		DeleteDC(hDCImage);
		m_engine->ReleaseRenderDC(hDC);
		return false;
	}

	m_engine->CreateBMPFile(filename, info, hb, hDCImage);

	DeleteObject(hb);
    DeleteDC(hDCImage);
	m_engine->ReleaseRenderDC(hDC);
	return true;
}