602 lines
14 KiB
C++
602 lines
14 KiB
C++
/* -------------------------------------------------------------------------------
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Copyright (C) 1999-2007 id Software, Inc. and contributors.
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For a list of contributors, see the accompanying CONTRIBUTORS file.
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This file is part of GtkRadiant.
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GtkRadiant is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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GtkRadiant is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GtkRadiant; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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----------------------------------------------------------------------------------
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This code has been altered significantly from its original form, to support
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several games based on the Quake III Arena engine, in the form of "Q3Map2."
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------------------------------------------------------------------------------- */
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/* dependencies */
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#include "q3map2.h"
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/*
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EmitShader()
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emits a bsp shader entry
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*/
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int EmitShader( const char *shader, const int *contentFlags, const int *surfaceFlags ){
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shaderInfo_t *si;
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/* handle special cases */
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if ( shader == NULL ) {
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shader = "noshader";
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}
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/* try to find an existing shader */
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for ( size_t i = 0; i < bspShaders.size(); ++i )
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{
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/* ydnar: handle custom surface/content flags */
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if ( surfaceFlags != NULL && bspShaders[ i ].surfaceFlags != *surfaceFlags ) {
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continue;
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}
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if ( contentFlags != NULL && bspShaders[ i ].contentFlags != *contentFlags ) {
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continue;
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}
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if ( !doingBSP ){
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si = ShaderInfoForShader( shader );
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if ( !strEmptyOrNull( si->remapShader ) ) {
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shader = si->remapShader;
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}
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}
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/* compare name */
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if ( striEqual( shader, bspShaders[ i ].shader ) ) {
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return i;
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}
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}
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/* get shaderinfo */
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si = ShaderInfoForShader( shader );
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/* emit a new shader */
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const int i = bspShaders.size(); // store index
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bspShader_t& bspShader = bspShaders.emplace_back();
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strcpy( bspShader.shader, si->shader );
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/* handle custom content/surface flags */
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bspShader.surfaceFlags = ( surfaceFlags != NULL )? *surfaceFlags : si->surfaceFlags;
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bspShader.contentFlags = ( contentFlags != NULL )? *contentFlags : si->contentFlags;
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/* recursively emit any damage shaders */
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if ( !strEmptyOrNull( si->damageShader ) ) {
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Sys_FPrintf( SYS_VRB, "Shader %s has damage shader %s\n", si->shader.c_str(), si->damageShader );
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EmitShader( si->damageShader, NULL, NULL );
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}
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/* return index */
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return i;
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}
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/*
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EmitPlanes()
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there is no opportunity to discard planes, because all of the original
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brushes will be saved in the map
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*/
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void EmitPlanes( void ){
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/* walk plane list */
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for ( size_t i = 0; i < mapplanes.size(); ++i )
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{
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AUTOEXPAND_BY_REALLOC_BSP( Planes, 1024 );
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bspPlanes[ numBSPPlanes ] = mapplanes[i].plane;
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numBSPPlanes++;
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}
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/* emit some statistics */
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Sys_FPrintf( SYS_VRB, "%9d BSP planes\n", numBSPPlanes );
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}
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/*
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EmitLeaf()
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emits a leafnode to the bsp file
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*/
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void EmitLeaf( node_t *node ){
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bspLeaf_t *leaf_p;
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drawSurfRef_t *dsr;
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/* check limits */
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if ( numBSPLeafs >= MAX_MAP_LEAFS ) {
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Error( "MAX_MAP_LEAFS" );
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}
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leaf_p = &bspLeafs[numBSPLeafs];
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numBSPLeafs++;
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leaf_p->cluster = node->cluster;
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leaf_p->area = node->area;
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/* emit bounding box */
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leaf_p->minmax.maxs = node->minmax.maxs;
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leaf_p->minmax.mins = node->minmax.mins;
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/* emit leaf brushes */
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leaf_p->firstBSPLeafBrush = numBSPLeafBrushes;
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for ( const brush_t& b : node->brushlist )
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{
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/* something is corrupting brushes */
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// if ( (size_t) b < 256 ) {
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// Sys_Warning( "Node brush list corrupted (0x%08X)\n", b );
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// break;
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// }
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//% if( b->guard != 0xDEADBEEF )
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//% Sys_Printf( "Brush %6d: 0x%08X Guard: 0x%08X Next: 0x%08X Original: 0x%08X Sides: %d\n", b->brushNum, b, b, b->next, b->original, b->numsides );
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AUTOEXPAND_BY_REALLOC_BSP( LeafBrushes, 1024 );
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bspLeafBrushes[ numBSPLeafBrushes ] = b.original->outputNum;
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numBSPLeafBrushes++;
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}
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leaf_p->numBSPLeafBrushes = numBSPLeafBrushes - leaf_p->firstBSPLeafBrush;
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/* emit leaf surfaces */
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if ( node->opaque ) {
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return;
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}
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/* add the drawSurfRef_t drawsurfs */
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leaf_p->firstBSPLeafSurface = numBSPLeafSurfaces;
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for ( dsr = node->drawSurfReferences; dsr; dsr = dsr->nextRef )
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{
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AUTOEXPAND_BY_REALLOC_BSP( LeafSurfaces, 1024 );
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bspLeafSurfaces[ numBSPLeafSurfaces ] = dsr->outputNum;
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numBSPLeafSurfaces++;
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}
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leaf_p->numBSPLeafSurfaces = numBSPLeafSurfaces - leaf_p->firstBSPLeafSurface;
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}
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/*
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EmitDrawNode_r()
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recursively emit the bsp nodes
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*/
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int EmitDrawNode_r( node_t *node ){
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bspNode_t *n;
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int i, n0;
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/* check for leafnode */
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if ( node->planenum == PLANENUM_LEAF ) {
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EmitLeaf( node );
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return -numBSPLeafs;
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}
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/* emit a node */
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AUTOEXPAND_BY_REALLOC_BSP( Nodes, 1024 );
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n0 = numBSPNodes;
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n = &bspNodes[ n0 ];
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numBSPNodes++;
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n->minmax.mins = node->minmax.mins;
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n->minmax.maxs = node->minmax.maxs;
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if ( node->planenum & 1 ) {
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Error( "WriteDrawNodes_r: odd planenum" );
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}
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n->planeNum = node->planenum;
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//
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// recursively output the other nodes
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//
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for ( i = 0; i < 2; i++ )
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{
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if ( node->children[i]->planenum == PLANENUM_LEAF ) {
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n->children[i] = -( numBSPLeafs + 1 );
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EmitLeaf( node->children[i] );
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}
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else
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{
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n->children[i] = numBSPNodes;
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EmitDrawNode_r( node->children[i] );
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// n may have become invalid here, so...
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n = &bspNodes[ n0 ];
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}
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}
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return n - bspNodes;
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}
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/*
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============
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SetModelNumbers
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============
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*/
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void SetModelNumbers( void ){
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int models = 1;
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for ( std::size_t i = 1; i < entities.size(); ++i ) {
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if ( !entities[i].brushes.empty() || entities[i].patches ) {
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char value[16];
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sprintf( value, "*%i", models );
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models++;
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entities[i].setKeyValue( "model", value );
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}
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}
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}
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/*
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SetLightStyles()
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sets style keys for entity lights
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*/
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void SetLightStyles( void ){
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int j, numStyles;
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char value[ 10 ];
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char lightTargets[ MAX_SWITCHED_LIGHTS ][ 64 ];
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int lightStyles[ MAX_SWITCHED_LIGHTS ];
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/* -keeplights option: force lights to be kept and ignore what the map file says */
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if ( keepLights ) {
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entities[0].setKeyValue( "_keepLights", "1" );
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}
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/* ydnar: determine if we keep lights in the bsp */
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entities[ 0 ].read_keyvalue( keepLights, "_keepLights" );
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/* any light that is controlled (has a targetname) must have a unique style number generated for it */
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numStyles = 0;
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for ( std::size_t i = 1; i < entities.size(); ++i )
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{
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entity_t& e = entities[ i ];
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if ( !e.classname_prefixed( "light" ) ) {
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continue;
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}
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const char *t;
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if ( !e.read_keyvalue( t, "targetname" ) ) {
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/* ydnar: strip the light from the BSP file */
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if ( !keepLights ) {
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e.epairs.clear();
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numStrippedLights++;
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}
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/* next light */
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continue;
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}
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/* get existing style */
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const int style = e.intForKey( "style" );
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if ( style < LS_NORMAL || style > LS_NONE ) {
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Error( "Invalid lightstyle (%d) on entity %zu", style, i );
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}
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/* find this targetname */
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for ( j = 0; j < numStyles; j++ )
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if ( lightStyles[ j ] == style && strEqual( lightTargets[ j ], t ) ) {
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break;
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}
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/* add a new style */
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if ( j >= numStyles ) {
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if ( numStyles == MAX_SWITCHED_LIGHTS ) {
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Error( "MAX_SWITCHED_LIGHTS (%d) exceeded, reduce the number of lights with targetnames", MAX_SWITCHED_LIGHTS );
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}
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strcpy( lightTargets[ j ], t );
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lightStyles[ j ] = style;
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numStyles++;
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}
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/* set explicit style */
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sprintf( value, "%d", 32 + j );
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e.setKeyValue( "style", value );
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/* set old style */
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if ( style != LS_NORMAL ) {
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sprintf( value, "%d", style );
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e.setKeyValue( "switch_style", value );
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}
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}
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/* emit some statistics */
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Sys_FPrintf( SYS_VRB, "%9d light entities stripped\n", numStrippedLights );
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}
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/*
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BeginBSPFile()
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starts a new bsp file
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*/
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void BeginBSPFile( void ){
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/* these values may actually be initialized if the file existed when loaded, so clear them explicitly */
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bspModels.clear();
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numBSPNodes = 0;
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numBSPBrushSides = 0;
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numBSPLeafSurfaces = 0;
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numBSPLeafBrushes = 0;
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/* leave leaf 0 as an error, because leafs are referenced as negative number nodes */
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numBSPLeafs = 1;
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/* ydnar: gs mods: set the first 6 drawindexes to 0 1 2 2 1 3 for triangles and quads */
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numBSPDrawIndexes = 6;
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AUTOEXPAND_BY_REALLOC_BSP( DrawIndexes, 1024 );
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bspDrawIndexes[ 0 ] = 0;
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bspDrawIndexes[ 1 ] = 1;
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bspDrawIndexes[ 2 ] = 2;
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bspDrawIndexes[ 3 ] = 0;
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bspDrawIndexes[ 4 ] = 2;
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bspDrawIndexes[ 5 ] = 3;
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}
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/*
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EndBSPFile()
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finishes a new bsp and writes to disk
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*/
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void EndBSPFile( bool do_write ){
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Sys_FPrintf( SYS_VRB, "--- EndBSPFile ---\n" );
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EmitPlanes();
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numBSPEntities = entities.size();
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UnparseEntities();
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if ( do_write ) {
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/* write the surface extra file */
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WriteSurfaceExtraFile( source );
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/* write the bsp */
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auto path = StringOutputStream( 256 )( source, ".bsp" );
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Sys_Printf( "Writing %s\n", path.c_str() );
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WriteBSPFile( path );
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}
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}
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/*
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EmitBrushes()
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writes the brush list to the bsp
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*/
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void EmitBrushes( brushlist_t& brushes, int *firstBrush, int *numBrushes ){
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bspBrush_t *db;
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bspBrushSide_t *cp;
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/* set initial brush */
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if ( firstBrush != NULL ) {
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*firstBrush = numBSPBrushes;
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}
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if ( numBrushes != NULL ) {
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*numBrushes = 0;
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}
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/* walk list of brushes */
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for ( brush_t& b : brushes )
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{
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/* check limits */
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AUTOEXPAND_BY_REALLOC_BSP( Brushes, 1024 );
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/* get bsp brush */
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b.outputNum = numBSPBrushes;
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db = &bspBrushes[ numBSPBrushes ];
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numBSPBrushes++;
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if ( numBrushes != NULL ) {
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( *numBrushes )++;
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}
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db->shaderNum = EmitShader( b.contentShader->shader, &b.contentShader->contentFlags, &b.contentShader->surfaceFlags );
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db->firstSide = numBSPBrushSides;
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/* walk sides */
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db->numSides = 0;
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for ( side_t& side : b.sides )
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{
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/* set output number to bogus initially */
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side.outputNum = -1;
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/* check count */
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AUTOEXPAND_BY_REALLOC_BSP( BrushSides, 1024 );
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/* emit side */
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side.outputNum = numBSPBrushSides;
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cp = &bspBrushSides[ numBSPBrushSides ];
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db->numSides++;
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numBSPBrushSides++;
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cp->planeNum = side.planenum;
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/* emit shader */
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if ( side.shaderInfo ) {
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cp->shaderNum = EmitShader( side.shaderInfo->shader, &side.shaderInfo->contentFlags, &side.shaderInfo->surfaceFlags );
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}
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else if( side.bevel ) { /* emit surfaceFlags for bevels to get correct physics at walkable brush edges and vertices */
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cp->shaderNum = EmitShader( NULL, NULL, &side.surfaceFlags );
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}
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else{
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cp->shaderNum = EmitShader( NULL, NULL, NULL );
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}
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}
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}
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}
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/*
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EmitFogs() - ydnar
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turns map fogs into bsp fogs
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*/
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void EmitFogs( void ){
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/* setup */
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numBSPFogs = numMapFogs;
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/* walk list */
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for ( int i = 0; i < numMapFogs; i++ )
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{
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const fog_t& fog = mapFogs[i];
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bspFog_t& bspFog = bspFogs[i];
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/* set shader */
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// copy and clear the rest of memory
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strncpy( bspFog.shader, fog.si->shader, sizeof( bspFog.shader ) );
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/* global fog doesn't have an associated brush */
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if ( fog.brush == NULL ) {
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bspFog.brushNum = -1;
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bspFog.visibleSide = -1;
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}
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else
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{
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/* set brush */
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bspFog.brushNum = fog.brush->outputNum;
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bspFog.visibleSide = -1; // default to something sensible, not just zero index
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/* try to use forced visible side */
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if ( fog.visibleSide >= 0 ) {
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bspFog.visibleSide = fog.visibleSide;
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continue;
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}
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/* find visible axial side */
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for ( int j = 6; j-- > 0; ) // prioritize +Z (index 5) then -Z (index 4) in ambiguous case; fogged pit is assumed as most likely case
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{
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if ( !fog.brush->sides[ j ].visibleHull.empty() ) {
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Sys_Printf( "Fog %d has visible side %d\n", i, j );
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bspFog.visibleSide = j;
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break;
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}
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}
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/* try other sides */
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if( bspFog.visibleSide < 0 ){
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for ( size_t j = 6; j < fog.brush->sides.size(); ++j )
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{
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if ( !fog.brush->sides[ j ].visibleHull.empty() ) {
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Sys_Printf( "Fog %d has visible side %d\n", i, j );
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bspFog.visibleSide = j;
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break;
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}
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}
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}
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}
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}
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/* warn about overflow */
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if( strEqual( g_game->bspIdent, "RBSP" ) ){
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if( numMapFogs > MAX_RBSP_FOGS )
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Sys_Warning( "MAX_RBSP_FOGS (%i) exceeded (%i). Visual inconsistencies are expected.\n", MAX_RBSP_FOGS, numMapFogs );
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}
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else if( numMapFogs > MAX_IBSP_FOGS )
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Sys_Warning( "MAX_IBSP_FOGS (%i) exceeded (%i). Visual inconsistencies are expected.\n", MAX_IBSP_FOGS, numMapFogs );
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}
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/*
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BeginModel()
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sets up a new brush model
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*/
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void BeginModel( void ){
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MinMax minmax;
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MinMax lgMinmax; /* ydnar: lightgrid mins/maxs */
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/* get model and entity */
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bspModel_t& mod = bspModels.emplace_back();
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const entity_t& e = entities[ mapEntityNum ];
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/* bound the brushes */
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for ( const brush_t& b : e.brushes )
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{
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/* ignore non-real brushes (origin, etc) */
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if ( b.sides.empty() ) {
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continue;
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}
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minmax.extend( b.minmax );
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/* ydnar: lightgrid bounds */
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if ( b.compileFlags & C_LIGHTGRID ) {
|
|
lgMinmax.extend( b.minmax );
|
|
}
|
|
}
|
|
|
|
/* bound patches */
|
|
for ( const parseMesh_t *p = e.patches; p; p = p->next )
|
|
{
|
|
for ( int i = 0; i < ( p->mesh.width * p->mesh.height ); i++ )
|
|
minmax.extend( p->mesh.verts[i].xyz );
|
|
}
|
|
|
|
/* ydnar: lightgrid mins/maxs */
|
|
if ( lgMinmax.valid() ) {
|
|
/* use lightgrid bounds */
|
|
mod.minmax = lgMinmax;
|
|
}
|
|
else
|
|
{
|
|
/* use brush/patch bounds */
|
|
mod.minmax = minmax;
|
|
}
|
|
|
|
/* note size */
|
|
Sys_FPrintf( SYS_VRB, "BSP bounds: { %f %f %f } { %f %f %f }\n", minmax.mins[0], minmax.mins[1], minmax.mins[2], minmax.maxs[0], minmax.maxs[1], minmax.maxs[2] );
|
|
if ( lgMinmax.valid() )
|
|
Sys_FPrintf( SYS_VRB, "Lightgrid bounds: { %f %f %f } { %f %f %f }\n", lgMinmax.mins[0], lgMinmax.mins[1], lgMinmax.mins[2], lgMinmax.maxs[0], lgMinmax.maxs[1], lgMinmax.maxs[2] );
|
|
|
|
/* set firsts */
|
|
mod.firstBSPSurface = numBSPDrawSurfaces;
|
|
mod.firstBSPBrush = numBSPBrushes;
|
|
}
|
|
|
|
|
|
|
|
|
|
/*
|
|
EndModel()
|
|
finish a model's processing
|
|
*/
|
|
|
|
void EndModel( entity_t *e, node_t *headnode ){
|
|
/* note it */
|
|
Sys_FPrintf( SYS_VRB, "--- EndModel ---\n" );
|
|
|
|
/* emit the bsp */
|
|
bspModel_t& mod = bspModels.back();
|
|
EmitDrawNode_r( headnode );
|
|
|
|
/* set surfaces and brushes */
|
|
mod.numBSPSurfaces = numBSPDrawSurfaces - mod.firstBSPSurface;
|
|
mod.firstBSPBrush = e->firstBrush;
|
|
mod.numBSPBrushes = e->numBrushes;
|
|
}
|