From 4531ac88d3c022866d564be40c20593de4c70bfc Mon Sep 17 00:00:00 2001
From: Piotr Dziwinski <piotrdz@gmail.com>
Date: Fri, 22 Jun 2012 15:54:16 +0200
Subject: Moved old implementations to src/old

---
 src/old/particule.cpp | 4401 +++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 4401 insertions(+)
 create mode 100644 src/old/particule.cpp

(limited to 'src/old/particule.cpp')

diff --git a/src/old/particule.cpp b/src/old/particule.cpp
new file mode 100644
index 0000000..0c63049
--- /dev/null
+++ b/src/old/particule.cpp
@@ -0,0 +1,4401 @@
+// * 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 "math/old/d3dmath.h"
+#include "graphics/d3d/d3dtextr.h"
+#include "graphics/d3d/d3dengine.h"
+#include "graphics/d3d/d3dutil.h"
+#include "common/language.h"
+#include "common/iman.h"
+#include "math/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 "graphics/common/terrain.h"
+#include "sound/sound.h"
+#include "graphics/common/water.h"
+#include "graphics/common/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�n�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;
+}
+
-- 
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