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Face.cpp
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Face.cpp
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//-----------------------------------------------------------------------------
// File: Face.cpp
//
// Desc: Manages all information and data for faces
//
// Copyright (c) 2002 Dan
//-----------------------------------------------------------------------------
//-----------------------------------------------------------------------------
// Includes
#include <D3DX8math.h>
#include <stdio.h>
#include "PolygonManager.h"
#include "Face.h"
#include "main.h"
#include "Vertex.h"
#include "Tracer.h"
#include "TextureManager.h"
#include "Util.h"
#include "SaveTokens.h"
//-----------------------------------------------------------------------------
// Sets the initial value for the face class
unsigned int CFace::m_UniqueID = 0;
//-----------------------------------------------------------------------------
// Construction/Destruction
// Sets the class type, face type, default texture handle, number of verticies
// and creates a unique ID for this face. Faces are not referred to by their
// ID number, but by their 'm_strName' member.
//-----------------------------------------------------------------------------
CFace::CFace()
{
TRACE_ENTER_FN( CFace::CFace )
m_eClassType = FACECLASS;
m_eFaceType = NOTHINGFACE;
m_iNumVerts = 0;
m_bPanU = false;
m_bPanV = false;
m_bTranslucent = false;
TM->Invalidate( m_hTexture1 );
TM->Invalidate( m_hTexture2 );
TM->Invalidate( &m_hLightmap );
m_bUseTexture1 = true;
m_bUseTexture2 = true;
m_bUseLightmap = false;
sprintf( m_strName, "Face:%d", m_UniqueID );
m_UniqueID++;
// m_iLightmapRes = 8;
// m_uiLightmap = 0;
m_pfFaceColors = NULL;
m_pfFaceVerts = NULL;
m_pfFaceTexCoords = NULL;
m_iU[0] = 0;
m_iV[0] = 0;
m_iU[1] = 1;
m_iV[1] = 0;
m_iU[2] = 1;
m_iV[2] = 1;
m_iU[3] = 0;
m_iV[3] = 1;
m_pfLightmapCoords = new float[ 8 ];
m_pfLightmapCoords[ 0 ] = m_iU[ 0 ];
m_pfLightmapCoords[ 1 ] = m_iV[ 0 ];
m_pfLightmapCoords[ 2 ] = m_iU[ 1 ];
m_pfLightmapCoords[ 3 ] = m_iV[ 1 ];
m_pfLightmapCoords[ 4 ] = m_iU[ 2 ];
m_pfLightmapCoords[ 5 ] = m_iV[ 2 ];
m_pfLightmapCoords[ 6 ] = m_iU[ 3 ];
m_pfLightmapCoords[ 7 ] = m_iV[ 3 ];
if( !m_pfLightmapCoords ) LOG_ERR()
m_eGLFaceType = 0;
// Creates a white lightmap for this face lightmap
// NOTE: This stuff should not be in the constructor, it has
// a possibility of failure
/*
try
{
const int iLen = GetLightmapRes() * GetLightmapRes() * 3;
unsigned char* pLightmap = new unsigned char[iLen];
if( pLightmap != NULL )
{
for( int a = 0; a < iLen; a++ )
pLightmap[a] = (unsigned char)255;
if( !CreateLightmap( GetLightmapRes(), pLightmap ) )
Log( "if( !CreateLightmap( GetLightmapRes(), pLightmap ) ) @ CFace::CFace()\n" );
if( pLightmap != NULL )
{
delete[] pLightmap;
pLightmap = NULL;
}
}
}
catch( ... )
{
Log( "catch( ... ) @ CFace::CFace()\n" );
}
*/
TRACE_LEAVE_FN()
}
CFace::~CFace()
{
TRACE_ENTER_FN( CFace::~CFace )
Release();
TRACE_LEAVE_FN()
}
//-----------------------------------------------------------------------------
// Name: Release()
// Desc:
//-----------------------------------------------------------------------------
void CFace::Release()
{
TRACE_ENTER_FN( CFace::Release )
// if( !ReleaseLightmap() ) LOG_ERR()
try { if( m_pfFaceVerts != NULL ) delete[] m_pfFaceVerts; } catch( ... ) { LOG_ERR() }
try { if( m_pfFaceColors != NULL ) delete[] m_pfFaceColors; } catch( ... ) { LOG_ERR() }
try { if( m_pfFaceTexCoords != NULL ) delete[] m_pfFaceTexCoords; } catch( ... ) { LOG_ERR() }
m_pfFaceVerts = NULL;
m_pfFaceColors = NULL;
m_pfFaceTexCoords = NULL;
TRACE_LEAVE_FN()
}
//-----------------------------------------------------------------------------
// Name: SetName()
// Desc:
//-----------------------------------------------------------------------------
void CFace::SetName( const char* str, bool bAddUniqueID )
{
TRACE_ENTER_FN( CFace::SetName )
if( str == NULL ) { LOG_ERR() TRACE_LEAVE_FN() return; }
if( bAddUniqueID )
{
sprintf( m_strName, "%s:%d", m_UniqueID );
m_UniqueID++;
TRACE_LEAVE_FN() return;
}
strcpy( m_strName, str );
TRACE_LEAVE_FN()
}
//-----------------------------------------------------------------------------
// Name: SetQuadVerts()
// Desc: Changes the face type to quad, updates the number of verts, and
// replaces all the old coords with the new ones
// NOTE: default color is white
//-----------------------------------------------------------------------------
void CFace::SetQuadVerts( const VECT &v1, const VECT &v2,
const VECT &v3, const VECT &v4 )
{
TRACE_ENTER_FN( CFace::SetQuadVerts )
VECT c( 255, 255, 255);
m_eFaceType = QUADFACE;
m_iNumVerts = 4;
// Set each position
m_Verts[0].SetVertPos( v1 );
m_Verts[1].SetVertPos( v2 );
m_Verts[2].SetVertPos( v3 );
m_Verts[3].SetVertPos( v4 );
// Set each color
m_Verts[0].SetColor( c );
m_Verts[1].SetColor( c );
m_Verts[2].SetColor( c );
m_Verts[3].SetColor( c );
m_eGLFaceType = GL_QUADS;/**/
TRACE_LEAVE_FN()
}
//-----------------------------------------------------------------------------
// Name: SetTriangleVerts()
// Desc: Changes the face type to triangle, updates the number of verts, and
// replaces the old coords with new ones
// NOTE: default color is white
//-----------------------------------------------------------------------------
void CFace::SetTriangleVerts( const VECT &v1, const VECT &v2, const VECT &v3 )
{
TRACE_ENTER_FN( CFace::SetTriangleVerts )
VECT c( 255, 255, 255);
m_eFaceType = TRIANGLEFACE;
m_iNumVerts = 3;
// Set the coords
// NOTE: when a face is a triangle, the last index of the m_Vert array
// is simply left empty
m_Verts[0].SetVertPos( v1 );
m_Verts[1].SetVertPos( v2 );
m_Verts[2].SetVertPos( v3 );
m_Verts[0].SetColor( c );
m_Verts[1].SetColor( c );
m_Verts[2].SetColor( c );
m_eGLFaceType = GL_TRIANGLES;/**/
TRACE_LEAVE_FN()
}
//-----------------------------------------------------------------------------
// Name: TranslateTexU()
// Desc: adds 'amount' to all U texture coords
//-----------------------------------------------------------------------------
void CFace::TranslateTexU( const float amount )
{
TRACE_ENTER_FN( CFace::TranslateTexU )
for( int iV = 0; iV < GetLoadedVerts(); iV++ )
m_Verts[iV].SetTexU( m_Verts[iV].GetTexU() + amount );
//m_Verts[iV].m_fU += amount;
TRACE_LEAVE_FN()
}
//-----------------------------------------------------------------------------
// Name: TranslateTexV()
// Desc: adds 'amount' to all V texture coords
//-----------------------------------------------------------------------------
void CFace::TranslateTexV( const float amount )
{
TRACE_ENTER_FN( CFace::TranslateTexV )
for( int iV = 0; iV < GetLoadedVerts(); iV++ )
m_Verts[iV].SetTexV( m_Verts[iV].GetTexV() + amount );
//m_Verts[iV].m_fV += amount;
TRACE_LEAVE_FN()
}
//-----------------------------------------------------------------------------
// Name: FlipTexU()
// Desc: Flips the corresponding U values
//-----------------------------------------------------------------------------
void CFace::FlipTexU()
{
TRACE_ENTER_FN( CFace::FlipTexU )
float temp;
temp = m_Verts[0].GetTexU();
m_Verts[0].SetTexU( m_Verts[2].GetTexU() );
m_Verts[2].SetTexU( temp );
temp = m_Verts[1].GetTexU();
m_Verts[1].SetTexU( m_Verts[3].GetTexU() );
m_Verts[3].SetTexU( temp );
TRACE_LEAVE_FN()
}
//-----------------------------------------------------------------------------
// Name: FlipTexV()
// Desc: Swaps the corresponding V coords
//-----------------------------------------------------------------------------
void CFace::FlipTexV()
{
TRACE_ENTER_FN( CFace::FlipTexV )
float temp;
temp = m_Verts[0].GetTexV();
m_Verts[0].SetTexV( m_Verts[2].GetTexV() );
m_Verts[2].SetTexV( temp );
temp = m_Verts[1].GetTexV();
m_Verts[1].SetTexV( m_Verts[3].GetTexV() );
m_Verts[3].SetTexV( temp );
/*
temp = m_Verts[0].m_fV;
m_Verts[0].m_fV = m_Verts[2].m_fV;
m_Verts[2].m_fV = temp;
temp = m_Verts[1].m_fV;
m_Verts[1].m_fV = m_Verts[3].m_fV;
m_Verts[3].m_fV = temp;
*/
TRACE_LEAVE_FN()
}
//-----------------------------------------------------------------------------
// Name: RotateTex90()
// Desc: Rotetes the texture 90 degrees
//-----------------------------------------------------------------------------
void CFace::RotateTex90()
{
TRACE_ENTER_FN( CFace::RotateTex90 )
float fTempU0, fTempV0;
float fTempU1, fTempV1;
float fTempU2, fTempV2;
float fTempU3, fTempV3;
fTempU0 = m_Verts[ 0 ].GetTexU();
fTempV0 = m_Verts[ 0 ].GetTexV();
fTempU1 = m_Verts[ 1 ].GetTexU();
fTempV1 = m_Verts[ 1 ].GetTexV();
fTempU2 = m_Verts[ 2 ].GetTexU();
fTempV2 = m_Verts[ 2 ].GetTexV();
fTempU3 = m_Verts[ 3 ].GetTexU();
fTempV3 = m_Verts[ 3 ].GetTexV();
m_Verts[ 0 ].SetTexU( fTempU1 );
m_Verts[ 0 ].SetTexV( fTempV1 );
m_Verts[ 1 ].SetTexU( fTempU2 );
m_Verts[ 1 ].SetTexV( fTempV2 );
m_Verts[ 2 ].SetTexU( fTempU3 );
m_Verts[ 2 ].SetTexV( fTempV3 );
m_Verts[ 3 ].SetTexU( fTempU0 );
m_Verts[ 3 ].SetTexV( fTempV0 );
TRACE_LEAVE_FN()
}
//-----------------------------------------------------------------------------
// Name: RotateLightmap90()
// Desc: Rotetes the lightmap 90 degrees
//-----------------------------------------------------------------------------
bool CFace::RotateLightmap90()
{
TRACE_ENTER_FN( CFace::RotateLightmap90 )
float fTempU0, fTempV0;
float fTempU1, fTempV1;
float fTempU2, fTempV2;
float fTempU3, fTempV3;
fTempU0 = m_iU[ 0 ];
fTempV0 = m_iV[ 0 ];
fTempU1 = m_iU[ 1 ];
fTempV1 = m_iV[ 1 ];
fTempU2 = m_iU[ 2 ];
fTempV2 = m_iV[ 2 ];
fTempU3 = m_iU[ 3 ];
fTempV3 = m_iV[ 3 ];
m_hLightmap.fU[ 0 ] = fTempU1;
m_hLightmap.fV[ 0 ] = fTempV1;
m_hLightmap.fU[ 1 ] = fTempU2;
m_hLightmap.fV[ 1 ] = fTempV2;
m_hLightmap.fU[ 2 ] = fTempU3;
m_hLightmap.fV[ 2 ] = fTempV3;
m_hLightmap.fU[ 3 ] = fTempU0;
m_hLightmap.fV[ 3 ] = fTempV0;
RET( true )
}
//-----------------------------------------------------------------------------
// Name: SetScale()
// Desc: Scales the texture coordinates to the factor
//-----------------------------------------------------------------------------
bool CFace::SetScale( float factor )
{
TRACE_ENTER_FN( CFace::SetScale )
if( factor == 0.0f ) LOG_ERR_RET( false )
for( int iV = 0; iV < GetLoadedVerts(); iV++ )
{
m_Verts[ iV ].SetTexU( m_Verts[ iV ].GetTexU() * factor );
m_Verts[ iV ].SetTexV( m_Verts[ iV ].GetTexV() * factor );
}
RET( true )
}
//-----------------------------------------------------------------------------
// Name: FrameMove()
// Desc: Updates the face for this frame
//-----------------------------------------------------------------------------
bool CFace::FrameMove( const float fElapsedTime )
{
TRACE_ENTER_FN( CFace::FrameMove )
float fTotal = 0;
int iV;
// Change U texture coords if enabled
if( m_bPanU )
for( int iV = 0; iV < GetLoadedVerts(); iV++ )
m_Verts[ iV ].SetTexU( m_Verts[ iV ].GetTexU() + fElapsedTime );
// Change V texture coords if enabled
if( m_bPanV )
for( int iV = 0; iV < GetLoadedVerts(); iV++ )
m_Verts[ iV ].SetTexV( m_Verts[ iV ].GetTexV() + fElapsedTime );
// Make sure there are enough verticies to obtain a normal
if( GetLoadedVerts() < 3 ) LOG_ERR_RET( false )
// Get the polygon's normal
m_vNormal = Normal( m_Verts[ 0 ].GetVertPos(),
m_Verts[ 1 ].GetVertPos(),
m_Verts[ 2 ].GetVertPos() );
// Computes the center of the face
for( iV = 0; iV < GetLoadedVerts(); iV++ )
fTotal += m_Verts[ iV ].GetVertPos().x;
m_vCenter.x = fTotal / GetLoadedVerts();
fTotal = 0;
for( iV = 0; iV < GetLoadedVerts(); iV++ )
fTotal += m_Verts[ iV ].GetVertPos().y;
m_vCenter.y = fTotal / GetLoadedVerts();
fTotal = 0;
for( iV = 0; iV < GetLoadedVerts(); iV++ )
fTotal += m_Verts[ iV ].GetVertPos().z;
m_vCenter.z = fTotal / GetLoadedVerts();
fTotal = 0;
RET( true )
}
//-----------------------------------------------------------------------------
// Name: TranslateX()
// Desc:
//-----------------------------------------------------------------------------
bool CFace::TranslateX( const float amount )
{
TRACE_ENTER_FN( CFace::TranslateX )
for( int iA = 0; iA < m_iNumVerts; iA++ )
m_Verts[ iA ].TranslateX( amount );
RET( true )
}
//-----------------------------------------------------------------------------
// Name: TranslateY()
// Desc:
//-----------------------------------------------------------------------------
bool CFace::TranslateY( const float amount )
{
TRACE_ENTER_FN( CFace::TranslateY )
for( int iA = 0; iA < m_iNumVerts; iA++ )
m_Verts[ iA ].TranslateY( amount );
RET( true )
}
//-----------------------------------------------------------------------------
// Name: TranslateZ()
// Desc:
//-----------------------------------------------------------------------------
bool CFace::TranslateZ( const float amount )
{
TRACE_ENTER_FN( CFace::TranslateZ )
for( int iA = 0; iA < m_iNumVerts; iA++ )
m_Verts[ iA ].TranslateZ( amount );
RET( true )
}
//-----------------------------------------------------------------------------
// Name: Save()
// Desc:
//-----------------------------------------------------------------------------
bool CFace::Save( const char* File, ofstream& out )
{
TRACE_ENTER_FN( CFace::Save )
out << F_BEGIN << NEWLINE;
out << F_UNIQUEID << ' ' << m_UniqueID << NEWLINE;
out << F_NAME << ' ' << m_strName << NEWLINE;
out << F_FACETYPE << ' ' << m_eFaceType << NEWLINE;
out << F_NUMVERTS << ' ' << m_iNumVerts << NEWLINE;
out << F_PANU << ' ' << m_bPanU << NEWLINE;
out << F_PANV << ' ' << m_bPanV << NEWLINE;
out << F_TRANSLUCENT << ' ' << m_bTranslucent << NEWLINE;
out << F_TEX1PATH << ' ' << m_hTexture1.path << NEWLINE;
out << F_TEX2PATH << ' ' << m_hTexture2.path << NEWLINE;
// out << F_TEX3PATH << ' ' << m_hLightmap.path << NEWLINE;
out << F_USETEX1 << ' ' << m_bUseTexture1 << NEWLINE;
out << F_USETEX2 << ' ' << m_bUseTexture2 << NEWLINE;
out << F_USELIGHTMAP << ' ' << m_bUseLightmap << NEWLINE;
// out << F_LIGHTMAPRES << ' ' << m_hLightmap.iResolution << NEWLINE;
out << F_UTEXCOORDSU << ' ' << m_iU[ 0 ] << ' ' << m_iU[ 1 ] << ' ' << m_iU[ 2 ] << ' ' << m_iU[ 3 ] << NEWLINE;
out << F_UTEXCOORDSV << ' ' << m_iV[ 0 ] << ' ' << m_iV[ 1 ] << ' ' << m_iV[ 2 ] << ' ' << m_iV[ 3 ] << NEWLINE;
out << F_GLFACETYPE << ' ' << m_eGLFaceType << NEWLINE;
out << F_LIGHTMAP << ' ' << m_hLightmap.iLightmapBlockIndex
<< ' ' << m_hLightmap.iResolution
<< ' ' << (int)m_hLightmap.BlockSector.bLeftIsOccupied
<< ' ' << (int)m_hLightmap.BlockSector.bRightIsOccupied
<< ' ' << m_hLightmap.fU[ 0 ]
<< ' ' << m_hLightmap.fU[ 1 ]
<< ' ' << m_hLightmap.fU[ 2 ]
<< ' ' << m_hLightmap.fU[ 3 ]
<< ' ' << m_hLightmap.fV[ 0 ]
<< ' ' << m_hLightmap.fV[ 1 ]
<< ' ' << m_hLightmap.fV[ 2 ]
<< ' ' << m_hLightmap.fV[ 3 ]
<< ' ' << NEWLINE;
/*
out << F_LIGHTMAP << ' ';
unsigned char *ucBuf = new unsigned char[ m_iLightmapRes * m_iLightmapRes * 3 ];
glBindTexture( GL_TEXTURE_2D, m_uiLightmap );
glGetTexImage( GL_TEXTURE_2D, 0, GL_RGB, GL_UNSIGNED_BYTE, ucBuf );
for( int iA = 0; iA < m_iLightmapRes * m_iLightmapRes * 3; iA++ )
out << (int)ucBuf[iA] << ' ';
out << NEWLINE;
delete[] ucBuf;
*/
out << F_END << NEWLINE;
for( int iV = 0; iV < GetLoadedVerts(); iV++ )
m_Verts[iV].Save( File, out );
RET( true )
}
//-----------------------------------------------------------------------------
// Name: Open()
// Desc:
//-----------------------------------------------------------------------------
bool CFace::Open( const char* strFile, ifstream& in )
{
TRACE_ENTER_FN( CFace::Open )
int iTemp;
char strToken[256];
in >> strToken;
if( strcmp( F_BEGIN, strToken ) != 0 ) { LOG_VAR( strToken ) LOG_ERR_RET( false ) }
in >> strToken;
while( strcmp( F_END, strToken ) != 0 )
{
if( !IsFaceToken( strToken ) ) { LOG_VAR( strToken ) LOG_ERR_RET( false ) }
/***********************
VERSION 1.0 TOKENS BEGIN
***********************/
if( strcmp( F_UNIQUEID, strToken ) == 0 )
{
in >> CFace::m_UniqueID;
}
else if( strcmp( F_NAME, strToken ) == 0 )
{
in >> m_strName;
}
else if( strcmp( F_FACETYPE, strToken ) == 0 )
{
in >> iTemp;
m_eFaceType = GetFaceEnumType( iTemp );
}
else if( strcmp( F_NUMVERTS, strToken ) == 0 )
{
in >> m_iNumVerts;
}
else if( strcmp( F_PANU, strToken ) == 0 )
{
in >> iTemp;
m_bPanU = iTemp != 0;
}
else if( strcmp( F_PANV, strToken ) == 0 )
{
in >> iTemp;
m_bPanV = iTemp != 0;
}
else if( strcmp( F_TRANSLUCENT, strToken ) == 0 )
{
in >> iTemp;
m_bTranslucent = iTemp != 0;
}
else if( strcmp( F_TEX1PATH, strToken ) == 0 )
{
in >> m_hTexture1.path;
}
else if( strcmp( F_TEX2PATH, strToken ) == 0 )
{
in >> m_hTexture2.path;
}
else if( strcmp( F_USETEX1, strToken ) == 0 )
{
in >> iTemp;
m_bUseTexture1 = iTemp != 0;
}
else if( strcmp( F_USETEX2, strToken ) == 0 )
{
in >> iTemp;
m_bUseTexture2 = iTemp != 0;
}
else if( strcmp( F_USELIGHTMAP, strToken ) == 0 )
{
in >> iTemp;
m_bUseLightmap = iTemp != 0;
}
else if( strcmp( F_UTEXCOORDSU, strToken ) == 0 )
{
in >> m_iU[ 0 ] >> m_iU[ 1 ] >> m_iU[ 2 ] >> m_iU[ 3 ];
}
else if( strcmp( F_UTEXCOORDSV, strToken ) == 0 )
{
in >> m_iV[ 0 ] >> m_iV[ 1 ] >> m_iV[ 2 ] >> m_iV[ 3 ];
}
else if( IsSameToken( F_LIGHTMAP, strToken ) )
{
int i1, i2;
in >> m_hLightmap.iLightmapBlockIndex
>> m_hLightmap.iResolution
>> i1 >> i2
>> m_hLightmap.fU[ 0 ] >> m_hLightmap.fU[ 1 ]
>> m_hLightmap.fU[ 2 ] >> m_hLightmap.fU[ 3 ]
>> m_hLightmap.fV[ 0 ] >> m_hLightmap.fV[ 1 ]
>> m_hLightmap.fV[ 2 ] >> m_hLightmap.fV[ 3 ];
m_hLightmap.BlockSector.bLeftIsOccupied = i1 != 0;
m_hLightmap.BlockSector.bRightIsOccupied = i2 != 0;
}
else if( IsSameToken( F_GLFACETYPE, strToken ) )
{
in >> m_eGLFaceType;
}
else
{
LOG_ERR() LOG_VAR( strToken )
}
in >> strToken;
}
m_eClassType = FACECLASS;
m_hTexture1 = TM->AddTextureFromFile( m_hTexture1.path );
m_hTexture2 = TM->AddTextureFromFile( m_hTexture2.path );
for( int iV = 0; iV < GetLoadedVerts(); iV++ )
m_Verts[ iV ].Open( strFile, in );
RET( true )
}
//-----------------------------------------------------------------------------
// Name: ()
// Desc:
//-----------------------------------------------------------------------------
VECT CFace::Normal( VECT v1, VECT v2, VECT v3 )
{
TRACE_ENTER_FN( CFace::Normal )
VECT vVector1 = v3 - v1;
VECT vVector2 = v2 - v1;
VECT vNormal = GetCrossProduct( vVector1, vVector2 );
vNormal = Normalize( vNormal );
RET( vNormal );
}
//-----------------------------------------------------------------------------
// Name: ()
// Desc:
//-----------------------------------------------------------------------------
VECT CFace::GetCrossProduct( VECT vVector1, VECT vVector2 )
{
TRACE_ENTER_FN( CFace::GetCrossProduct )
VECT vNormal;
vNormal.x = ( ( vVector1.y * vVector2.z ) - ( vVector1.z * vVector2.y ) );
vNormal.y = ( ( vVector1.z * vVector2.x ) - ( vVector1.x * vVector2.z ) );
vNormal.z = ( ( vVector1.x * vVector2.y ) - ( vVector1.y * vVector2.x ) );
TRACE_LEAVE_FN()
return vNormal;
}
//-----------------------------------------------------------------------------
// Name: ()
// Desc:
//-----------------------------------------------------------------------------
VECT CFace::Normalize( VECT vNormal )
{
TRACE_ENTER_FN( CFace::Normalize )
float magnitude = Magnitude( vNormal );
if( magnitude == 0 ) {
TRACE_LEAVE_FN() return VECT( 0.1f, 0.1f, 0.1f ); }
vNormal /= magnitude;
TRACE_LEAVE_FN()
return vNormal;
}
//-----------------------------------------------------------------------------
// Name: ()
// Desc:
//-----------------------------------------------------------------------------
VECT CFace::Vector( VECT vPoint1, VECT vPoint2 )
{
TRACE_ENTER_FN( CFace::Vector )
VECT vVector( 0, 0, 0);
vVector.x = vPoint1.x - vPoint2.x;
vVector.y = vPoint1.y - vPoint2.y;
vVector.z = vPoint1.z - vPoint2.z;
TRACE_LEAVE_FN()
return vVector;
}
//-----------------------------------------------------------------------------
// Name: ()
// Desc:
//-----------------------------------------------------------------------------
float CFace::Magnitude( VECT vNormal )
{
TRACE_ENTER_FN( CFace::Magnitude )
TRACE_LEAVE_FN()
return (float)sqrt( ( vNormal.x * vNormal.x ) +
( vNormal.y * vNormal.y ) +
( vNormal.z * vNormal.z ) );
}
//-----------------------------------------------------------------------------
// Name: SetTranslucent()
// Desc:
//-----------------------------------------------------------------------------
void CFace::SetTranslucent( const bool bTranslucent )
{ m_bTranslucent = bTranslucent; }
//-----------------------------------------------------------------------------
// Name: GenerateTextureCoordinates()
// Desc:
// Auth: http://uk.geocities.com/mentalmantle.
// Mail: [email protected]
// Original Language: Visual Basic
//-----------------------------------------------------------------------------
void CFace::GenerateTextureCoordinates()
{
TRACE_ENTER_FN( CFace::GenerateTextureCoordinates )
VECT vS( 0.0f, 0.0f, 0.0f ),
vT( 0.0f, 0.0f, 0.0f ),
vRef( 0.0f, 0.0f, 0.0f );
m_vNormal = Normal( m_Verts[0].GetVertPos(),
m_Verts[1].GetVertPos(),
m_Verts[2].GetVertPos() );
if( ( m_vNormal.x == 0.0f && m_vNormal.y == 1.0f && m_vNormal.z == 0.0f ) ||
( m_vNormal.x == 0.0f && m_vNormal.y == -1.0f && m_vNormal.z == 0.0f ) )
vRef.x = 1.0f;
else
vRef.y = -1.0f;
vS = Normalize( GetCrossProduct( m_vNormal, vRef ) ) / 2.0f;
vT = Normalize( GetCrossProduct( m_vNormal, vS ) ) / 2.0f;
for( int y = 0; y < 4; y++ )
{
m_Verts[y].SetTexU( ( m_Verts[y].GetVertPos().x * vS.x ) +
( m_Verts[y].GetVertPos().y * vS.y ) +
( m_Verts[y].GetVertPos().z * vS.z ) );
m_Verts[y].SetTexV( ( m_Verts[y].GetVertPos().x * vT.x ) +
( m_Verts[y].GetVertPos().y * vT.y ) +
( m_Verts[y].GetVertPos().z * vT.z ) );
}
TRACE_LEAVE_FN()
}
//-----------------------------------------------------------------------------
// Name: ResetVirtualCoords()
// Desc:
//-----------------------------------------------------------------------------
void CFace::ResetVirtualCoords()
{
TRACE_ENTER_FN( CFace::ResetVirtualCoords )
for( int iV = 0; iV < GetLoadedVerts(); iV++ )
m_Verts[iV].ResetVirtualCoords();
TRACE_LEAVE_FN()
}
/*
//-----------------------------------------------------------------------------
// Name: CreateLightmap()
// Desc:
//-----------------------------------------------------------------------------
bool CFace::CreateLightmap( const int iRes, const unsigned char* pData )
{
TRACE_ENTER_FN( CFace::CreateLightmap )
// Free whatever may be in use
ReleaseLightmap();
unsigned char *pTexture = NULL;
const int iLen = iRes * iRes * 3;
// Must be a power of 2
if( iRes & ( iRes - 1 ) ) LOG_ERR_RET( false )
// Data cant be null
if( pData == NULL ) LOG_ERR_RET( false )
// Create memory to hole the texture
pTexture = new unsigned char[iLen];
// Be sure it was created
if( pTexture == NULL ) LOG_ERR_RET( false )
// Copy the data passed in into the new data holder
memcpy( pTexture, pData, iLen * sizeof( unsigned char ) );
// Create the texture
glGenTextures( 1, &m_uiLightmap );
// Bind it
glBindTexture( GL_TEXTURE_2D, m_uiLightmap );
// COpy the pixel data to the texture
glTexImage2D( GL_TEXTURE_2D, 0, 3, iRes, iRes,
0, GL_RGB, GL_UNSIGNED_BYTE, pTexture );
// Set stuff for this texture
glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR );
glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR );
// Clean up
if( pTexture != NULL ) delete[] pTexture;
RET( true )
}
*/
/*
//-----------------------------------------------------------------------------
// Name: ReleaseLightmap()
// Desc:
//-----------------------------------------------------------------------------
bool CFace::ReleaseLightmap()
{
TRACE_ENTER_FN( CFace::ReleaseLightmap )
glDeleteTextures( 1, &m_uiLightmap );
RET( true )
}
*/
//-----------------------------------------------------------------------------
// Name: PrepareLightmap()
// Desc:
//-----------------------------------------------------------------------------
bool CFace::PrepareLightmap()
{
TRACE_ENTER_FN( CFace::PrepareLightmap )
/*
TM->glActiveTextureARB( GL_TEXTURE1_ARB );
glEnable( GL_TEXTURE_2D );
glBindTexture( GL_TEXTURE_2D, m_uiLightmap );
*/
RET( true )
}
//-----------------------------------------------------------------------------
// Name: DisableLightmap()
// Desc:
//-----------------------------------------------------------------------------
void CFace::DisableLightmap()
{
TRACE_ENTER_FN( CFace::DisableLightmap )
TM->glActiveTextureARB( GL_TEXTURE1_ARB );
glDisable( GL_TEXTURE_2D );
TRACE_LEAVE_FN()
}
//-----------------------------------------------------------------------------
// Name: DisableLightmap()
// Desc:
//-----------------------------------------------------------------------------
int CFace::GetCoordU( const int iIndex )
{
TRACE_ENTER_FN( CFace::GetCoordU )
int iU;
try { iU = m_iU[iIndex]; }
catch( ... )
{ Log( "catch( ... ) @ CFace::GetCoordU()\n" ); }
TRACE_LEAVE_FN()
return iU;
}