mirror of
https://github.com/TTimo/GtkRadiant.git
synced 2024-11-14 00:41:08 +00:00
256 lines
6.3 KiB
C++
256 lines
6.3 KiB
C++
/*
|
|
BobToolz plugin for GtkRadiant
|
|
Copyright (C) 2001 Gordon Biggans
|
|
|
|
This library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Lesser General Public
|
|
License as published by the Free Software Foundation; either
|
|
version 2.1 of the License, or (at your option) any later version.
|
|
|
|
This library is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
License along with this library; if not, write to the Free Software
|
|
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
*/
|
|
|
|
// DPlane.cpp: implementation of the DPlane class.
|
|
//
|
|
//////////////////////////////////////////////////////////////////////
|
|
|
|
#include "StdAfx.h"
|
|
#include "DPlane.h"
|
|
#include "DWinding.h"
|
|
#include "misc.h"
|
|
|
|
//////////////////////////////////////////////////////////////////////
|
|
// Construction/Destruction
|
|
//////////////////////////////////////////////////////////////////////
|
|
|
|
DPlane::DPlane( vec3_t va, vec3_t vb, vec3_t vc, _QERFaceData* texData ){
|
|
MakeNormal( va, vb, vc, normal );
|
|
if ( VectorNormalize( normal, normal ) == 0 ) { // normalizes and returns length
|
|
Sys_ERROR( "DPlane::DPlane: Bad Normal.\n" );
|
|
}
|
|
|
|
_d = ( normal[0] * va[0] ) + ( normal[1] * va[1] ) + ( normal[2] * va[2] );
|
|
|
|
VectorCopy( va, points[0] );
|
|
VectorCopy( vb, points[1] );
|
|
VectorCopy( vc, points[2] );
|
|
|
|
m_bChkOk = TRUE;
|
|
|
|
if ( texData ) {
|
|
memcpy( &texInfo, texData, sizeof( _QERFaceData ) );
|
|
}
|
|
else{
|
|
FillDefaultTexture( &texInfo, points[0], points[1], points[2], "textures/common/caulk" );
|
|
}
|
|
}
|
|
|
|
DPlane::~DPlane(){
|
|
|
|
}
|
|
|
|
//////////////////////////////////////////////////////////////////////
|
|
// Implementation
|
|
//////////////////////////////////////////////////////////////////////
|
|
|
|
vec_t DPlane::DistanceToPoint( vec3_t pnt ){
|
|
vec3_t tmp;
|
|
VectorSubtract( pnt, points[0], tmp );
|
|
return DotProduct( tmp, normal );
|
|
}
|
|
|
|
bool DPlane::PlaneIntersection( DPlane *pl1, DPlane *pl2, vec3_t out ){
|
|
float a1, a2, a3;
|
|
float b1, b2, b3;
|
|
float c1, c2, c3;
|
|
|
|
a1 = normal[0]; a2 = normal[1]; a3 = normal[2];
|
|
b1 = pl1->normal[0]; b2 = pl1->normal[1]; b3 = pl1->normal[2];
|
|
c1 = pl2->normal[0]; c2 = pl2->normal[1]; c3 = pl2->normal[2];
|
|
|
|
float d = Determinant3x3( a1, a2, a3, b1, b2, b3, c1, c2, c3 );
|
|
|
|
if ( d == 0 ) {
|
|
return FALSE;
|
|
}
|
|
|
|
float v1 = _d;
|
|
float v2 = pl1->_d;
|
|
float v3 = pl2->_d;
|
|
|
|
float d1 = Determinant3x3( v1, a2, a3, v2, b2, b3, v3, c2, c3 );
|
|
float d2 = Determinant3x3( a1, v1, a3, b1, v2, b3, c1, v3, c3 );
|
|
float d3 = Determinant3x3( a1, a2, v1, b1, b2, v2, c1, c2, v3 );
|
|
|
|
out[0] = d1 / d;
|
|
out[1] = d2 / d;
|
|
out[2] = d3 / d;
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
bool DPlane::IsRedundant( list<DPoint*>& pointList ){
|
|
int cnt = 0;
|
|
|
|
//list<DPoint *>::const_iterator point=pointList.begin();
|
|
for ( list<DPoint *>::const_iterator point = pointList.begin(); point != pointList.end(); point++ )
|
|
{
|
|
if ( fabs( DistanceToPoint( ( *point )->_pnt ) ) < MAX_ROUND_ERROR ) {
|
|
cnt++;
|
|
}
|
|
|
|
if ( cnt == 3 ) {
|
|
return FALSE;
|
|
}
|
|
}
|
|
return TRUE;
|
|
}
|
|
|
|
bool DPlane::operator ==( DPlane& other ){
|
|
vec3_t chk;
|
|
VectorSubtract( other.normal, normal, chk );
|
|
if ( fabs( VectorLength( chk ) ) > MAX_ROUND_ERROR ) {
|
|
return FALSE;
|
|
}
|
|
|
|
if ( fabs( other._d - _d ) > MAX_ROUND_ERROR ) {
|
|
return FALSE;
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
bool DPlane::operator !=( DPlane& other ){
|
|
vec3_t chk;
|
|
VectorAdd( other.normal, normal, chk );
|
|
if ( fabs( VectorLength( chk ) ) > MAX_ROUND_ERROR ) {
|
|
return FALSE;
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
DWinding* DPlane::BaseWindingForPlane(){
|
|
int i, x;
|
|
vec_t max, v;
|
|
vec3_t org, vright, vup;
|
|
|
|
// find the major axis
|
|
|
|
max = -131072;
|
|
x = -1;
|
|
for ( i = 0 ; i < 3; i++ )
|
|
{
|
|
v = (float)fabs( normal[i] );
|
|
if ( v > max ) {
|
|
x = i;
|
|
max = v;
|
|
}
|
|
}
|
|
if ( x == -1 ) {
|
|
Sys_Printf( "BaseWindingForPlane: no axis found" );
|
|
}
|
|
|
|
VectorCopy( vec3_origin, vup );
|
|
switch ( x )
|
|
{
|
|
case 0:
|
|
case 1:
|
|
vup[2] = 1;
|
|
break;
|
|
case 2:
|
|
vup[0] = 1;
|
|
break;
|
|
}
|
|
|
|
v = DotProduct( vup, normal );
|
|
VectorMA( vup, -v, normal, vup );
|
|
VectorNormalize( vup, vup );
|
|
|
|
VectorScale( normal, _d, org );
|
|
|
|
CrossProduct( vup, normal, vright );
|
|
|
|
VectorScale( vup, 131072, vup );
|
|
VectorScale( vright, 131072, vright );
|
|
|
|
// project a really big axis aligned box onto the plane
|
|
DWinding* w = new DWinding;
|
|
w->AllocWinding( 4 );
|
|
|
|
VectorSubtract( org, vright, w->p[0] );
|
|
VectorAdd( w->p[0], vup, w->p[0] );
|
|
|
|
VectorAdd( org, vright, w->p[1] );
|
|
VectorAdd( w->p[1], vup, w->p[1] );
|
|
|
|
VectorAdd( org, vright, w->p[2] );
|
|
VectorSubtract( w->p[2], vup, w->p[2] );
|
|
|
|
VectorSubtract( org, vright, w->p[3] );
|
|
VectorSubtract( w->p[3], vup, w->p[3] );
|
|
|
|
return w;
|
|
}
|
|
|
|
void DPlane::Rebuild(){
|
|
vec3_t v1, v2;
|
|
VectorSubtract( points[0], points[1], v1 );
|
|
VectorSubtract( points[2], points[1], v2 );
|
|
CrossProduct( v1, v2, normal );
|
|
|
|
if ( VectorNormalize( normal, normal ) == 0 ) { // normalizes and returns length
|
|
Sys_ERROR( "DPlane::Rebuild: Bad Normal.\n" );
|
|
}
|
|
|
|
_d = ( normal[0] * points[0][0] ) + ( normal[1] * points[0][1] ) + ( normal[2] * points[0][2] );
|
|
|
|
VectorCopy( points[0], texInfo.m_v1 );
|
|
VectorCopy( points[1], texInfo.m_v2 );
|
|
VectorCopy( points[2], texInfo.m_v3 );
|
|
}
|
|
|
|
bool DPlane::AddToBrush_t( brush_t *brush ){
|
|
if ( m_bChkOk || !strcmp( texInfo.m_TextureName, "textures/common/caulk" ) ) {
|
|
g_FuncTable.m_pfnAddFaceData( brush, &texInfo );
|
|
return FALSE;
|
|
}
|
|
|
|
strcpy( texInfo.m_TextureName, "textures/common/caulk" );
|
|
g_FuncTable.m_pfnAddFaceData( brush, &texInfo );
|
|
return TRUE;
|
|
}
|
|
|
|
void DPlane::ScaleTexture()
|
|
{ }
|
|
|
|
DPlane::DPlane( vec3_t va, vec3_t vb, vec3_t vc, const char* textureName, bool bDetail ){
|
|
vec3_t v1, v2;
|
|
VectorSubtract( va, vb, v1 );
|
|
VectorSubtract( vc, vb, v2 );
|
|
CrossProduct( v1, v2, normal );
|
|
|
|
if ( VectorNormalize( normal, normal ) == 0 ) { // normalizes and returns length
|
|
Sys_ERROR( "DPlane::DPlane: Bad Normal.\n" );
|
|
}
|
|
|
|
_d = ( normal[0] * va[0] ) + ( normal[1] * va[1] ) + ( normal[2] * va[2] );
|
|
|
|
VectorCopy( va, points[0] );
|
|
VectorCopy( vb, points[1] );
|
|
VectorCopy( vc, points[2] );
|
|
|
|
m_bChkOk = TRUE;
|
|
|
|
FillDefaultTexture( &texInfo, points[0], points[1], points[2], textureName );
|
|
if ( bDetail ) {
|
|
texInfo.m_nContents |= FACE_DETAIL;
|
|
}
|
|
}
|