560 lines
14 KiB
C++
560 lines
14 KiB
C++
/* -------------------------------------------------------------------------------
|
|
|
|
Copyright (C) 1999-2007 id Software, Inc. and contributors.
|
|
For a list of contributors, see the accompanying CONTRIBUTORS file.
|
|
|
|
This file is part of GtkRadiant.
|
|
|
|
GtkRadiant 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 2 of the License, or
|
|
(at your option) any later version.
|
|
|
|
GtkRadiant 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 GtkRadiant; if not, write to the Free Software
|
|
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
|
|
|
----------------------------------------------------------------------------------
|
|
|
|
This code has been altered significantly from its original form, to support
|
|
several games based on the Quake III Arena engine, in the form of "Q3Map2."
|
|
|
|
------------------------------------------------------------------------------- */
|
|
|
|
|
|
|
|
/* dependencies */
|
|
#include "q3map2.h"
|
|
#include "bspfile_rbsp.h"
|
|
|
|
|
|
|
|
/*
|
|
EmitShader()
|
|
emits a bsp shader entry
|
|
*/
|
|
|
|
int EmitShader( const char *shader, const int *contentFlags, const int *surfaceFlags ){
|
|
shaderInfo_t *si;
|
|
|
|
|
|
/* handle special cases */
|
|
if ( shader == NULL ) {
|
|
shader = "noshader";
|
|
}
|
|
|
|
/* try to find an existing shader */
|
|
for ( size_t i = 0; i < bspShaders.size(); ++i )
|
|
{
|
|
/* ydnar: handle custom surface/content flags */
|
|
if ( surfaceFlags != NULL && bspShaders[ i ].surfaceFlags != *surfaceFlags ) {
|
|
continue;
|
|
}
|
|
if ( contentFlags != NULL && bspShaders[ i ].contentFlags != *contentFlags ) {
|
|
continue;
|
|
}
|
|
if ( !doingBSP ){
|
|
si = ShaderInfoForShader( shader );
|
|
if ( !strEmptyOrNull( si->remapShader ) ) {
|
|
shader = si->remapShader;
|
|
}
|
|
}
|
|
/* compare name */
|
|
if ( striEqual( shader, bspShaders[ i ].shader ) ) {
|
|
return i;
|
|
}
|
|
}
|
|
|
|
/* get shaderinfo */
|
|
si = ShaderInfoForShader( shader );
|
|
|
|
/* emit a new shader */
|
|
const int i = bspShaders.size(); // store index
|
|
bspShader_t& bspShader = bspShaders.emplace_back();
|
|
|
|
strcpy( bspShader.shader, si->shader );
|
|
/* handle custom content/surface flags */
|
|
bspShader.surfaceFlags = ( surfaceFlags != NULL )? *surfaceFlags : si->surfaceFlags;
|
|
bspShader.contentFlags = ( contentFlags != NULL )? *contentFlags : si->contentFlags;
|
|
|
|
/* recursively emit any damage shaders */
|
|
if ( !strEmptyOrNull( si->damageShader ) ) {
|
|
Sys_FPrintf( SYS_VRB, "Shader %s has damage shader %s\n", si->shader.c_str(), si->damageShader );
|
|
EmitShader( si->damageShader, NULL, NULL );
|
|
}
|
|
|
|
/* return index */
|
|
return i;
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
EmitPlanes()
|
|
there is no opportunity to discard planes, because all of the original
|
|
brushes will be saved in the map
|
|
*/
|
|
|
|
static void EmitPlanes(){
|
|
bspPlanes.reserve( mapplanes.size() );
|
|
/* walk plane list */
|
|
for ( const plane_t& plane : mapplanes )
|
|
{
|
|
bspPlanes.push_back( plane.plane );
|
|
}
|
|
|
|
/* emit some statistics */
|
|
Sys_FPrintf( SYS_VRB, "%9zu BSP planes\n", bspPlanes.size() );
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
EmitLeaf()
|
|
emits a leafnode to the bsp file
|
|
*/
|
|
|
|
static void EmitLeaf( node_t *node ){
|
|
bspLeaf_t& leaf = bspLeafs.emplace_back();
|
|
|
|
leaf.cluster = node->cluster;
|
|
leaf.area = node->area;
|
|
|
|
/* emit bounding box */
|
|
leaf.minmax.maxs = node->minmax.maxs;
|
|
leaf.minmax.mins = node->minmax.mins;
|
|
|
|
/* emit leaf brushes */
|
|
leaf.firstBSPLeafBrush = bspLeafBrushes.size();
|
|
for ( const brush_t& b : node->brushlist )
|
|
{
|
|
bspLeafBrushes.push_back( b.original->outputNum );
|
|
}
|
|
|
|
leaf.numBSPLeafBrushes = bspLeafBrushes.size() - leaf.firstBSPLeafBrush;
|
|
|
|
/* emit leaf surfaces */
|
|
if ( node->opaque ) {
|
|
return;
|
|
}
|
|
|
|
/* add the drawSurfRef_t drawsurfs */
|
|
leaf.firstBSPLeafSurface = bspLeafSurfaces.size();
|
|
for ( const drawSurfRef_t *dsr = node->drawSurfReferences; dsr; dsr = dsr->nextRef )
|
|
{
|
|
bspLeafSurfaces.push_back( dsr->outputNum );
|
|
}
|
|
|
|
leaf.numBSPLeafSurfaces = bspLeafSurfaces.size() - leaf.firstBSPLeafSurface;
|
|
}
|
|
|
|
|
|
/*
|
|
EmitDrawNode_r()
|
|
recursively emit the bsp nodes
|
|
*/
|
|
|
|
static int EmitDrawNode_r( node_t *node ){
|
|
/* check for leafnode */
|
|
if ( node->planenum == PLANENUM_LEAF ) {
|
|
EmitLeaf( node );
|
|
return -int( bspLeafs.size() );
|
|
}
|
|
|
|
/* emit a node */
|
|
const int id = bspNodes.size();
|
|
{
|
|
bspNode_t& bnode = bspNodes.emplace_back();
|
|
|
|
bnode.minmax.mins = node->minmax.mins;
|
|
bnode.minmax.maxs = node->minmax.maxs;
|
|
|
|
if ( node->planenum & 1 ) {
|
|
Error( "WriteDrawNodes_r: odd planenum" );
|
|
}
|
|
bnode.planeNum = node->planenum;
|
|
}
|
|
|
|
//
|
|
// recursively output the other nodes
|
|
//
|
|
for ( int i = 0; i < 2; i++ )
|
|
{
|
|
// reference node by id, as it may be reallocated
|
|
if ( node->children[i]->planenum == PLANENUM_LEAF ) {
|
|
bspNodes[id].children[i] = -int( bspLeafs.size() + 1 );
|
|
EmitLeaf( node->children[i] );
|
|
}
|
|
else
|
|
{
|
|
bspNodes[id].children[i] = bspNodes.size();
|
|
EmitDrawNode_r( node->children[i] );
|
|
}
|
|
}
|
|
|
|
return id;
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
============
|
|
SetModelNumbers
|
|
============
|
|
*/
|
|
void SetModelNumbers(){
|
|
int models = 1;
|
|
for ( std::size_t i = 1; i < entities.size(); ++i ) {
|
|
if ( !entities[i].brushes.empty() || entities[i].patches ) {
|
|
char value[16];
|
|
sprintf( value, "*%i", models );
|
|
models++;
|
|
entities[i].setKeyValue( "model", value );
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/*
|
|
SetLightStyles()
|
|
sets style keys for entity lights
|
|
*/
|
|
|
|
void SetLightStyles(){
|
|
int j, numStyles;
|
|
char value[ 10 ];
|
|
char lightTargets[ MAX_SWITCHED_LIGHTS ][ 64 ];
|
|
int lightStyles[ MAX_SWITCHED_LIGHTS ];
|
|
int numStrippedLights = 0;
|
|
|
|
/* -keeplights option: force lights to be kept and ignore what the map file says */
|
|
if ( keepLights ) {
|
|
entities[0].setKeyValue( "_keepLights", "1" ); // -keeplights is -bsp option; save key in worldspawn to pass it to the next stages
|
|
}
|
|
|
|
/* ydnar: determine if we keep lights in the bsp */
|
|
entities[ 0 ].read_keyvalue( keepLights, "_keepLights" );
|
|
|
|
/* any light that is controlled (has a targetname) must have a unique style number generated for it in RBSP */
|
|
numStyles = 0;
|
|
for ( std::size_t i = 1; i < entities.size(); ++i )
|
|
{
|
|
entity_t& e = entities[ i ];
|
|
|
|
if ( !e.classname_prefixed( "light" ) ) {
|
|
continue;
|
|
}
|
|
const char *t;
|
|
if ( !( e.read_keyvalue( t, "targetname" ) && g_game->load == LoadRBSPFile ) ) { // only RBSP has switchable light styles
|
|
/* ydnar: strip the light from the BSP file */
|
|
if ( !keepLights ) {
|
|
e.epairs.clear();
|
|
numStrippedLights++;
|
|
}
|
|
|
|
/* next light */
|
|
continue;
|
|
}
|
|
|
|
/* get existing style */
|
|
const int style = e.intForKey( "style" );
|
|
if ( !style_is_valid( style ) ) {
|
|
Error( "Invalid lightstyle (%d) on entity %zu", style, i );
|
|
}
|
|
|
|
/* find this targetname */
|
|
for ( j = 0; j < numStyles; j++ )
|
|
if ( lightStyles[ j ] == style && strEqual( lightTargets[ j ], t ) ) {
|
|
break;
|
|
}
|
|
|
|
/* add a new style */
|
|
if ( j >= numStyles ) {
|
|
if ( numStyles == MAX_SWITCHED_LIGHTS ) {
|
|
Error( "MAX_SWITCHED_LIGHTS (%d) exceeded, reduce the number of lights with targetnames", MAX_SWITCHED_LIGHTS );
|
|
}
|
|
strcpy( lightTargets[ j ], t );
|
|
lightStyles[ j ] = style;
|
|
numStyles++;
|
|
}
|
|
|
|
/* set explicit style */
|
|
sprintf( value, "%d", MAX_SWITCHED_LIGHTS + j );
|
|
e.setKeyValue( "style", value );
|
|
|
|
/* set old style */
|
|
if ( style != LS_NORMAL ) {
|
|
sprintf( value, "%d", style );
|
|
e.setKeyValue( "switch_style", value );
|
|
}
|
|
}
|
|
|
|
/* emit some statistics */
|
|
Sys_FPrintf( SYS_VRB, "%9d light entities stripped\n", numStrippedLights );
|
|
}
|
|
|
|
// reverts SetLightStyles() effect for decompilation purposes
|
|
void UnSetLightStyles(){
|
|
for ( entity_t& e : entities ){
|
|
if ( e.classname_prefixed( "light" ) && !strEmpty( e.valueForKey( "targetname" ) ) && !strEmpty( e.valueForKey( "style" ) ) ) {
|
|
char value[ 10 ];
|
|
sprintf( value, "%d", e.intForKey( "switch_style" ) ); // value or 0, latter is fine too
|
|
e.setKeyValue( "style", value );
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
BeginBSPFile()
|
|
starts a new bsp file
|
|
*/
|
|
|
|
void BeginBSPFile(){
|
|
/* these values may actually be initialized if the file existed when loaded, so clear them explicitly */
|
|
bspModels.clear();
|
|
bspNodes.clear();
|
|
bspBrushSides.clear();
|
|
bspLeafSurfaces.clear();
|
|
bspLeafBrushes.clear();
|
|
|
|
/* leave leaf 0 as an error, because leafs are referenced as negative number nodes */
|
|
bspLeafs.resize( 1 );
|
|
|
|
/* ydnar: gs mods: set the first 6 drawindexes to 0 1 2 2 1 3 for triangles and quads */
|
|
bspDrawIndexes = { 0, 1, 2, 0, 2, 3 };
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
EndBSPFile()
|
|
finishes a new bsp and writes to disk
|
|
*/
|
|
|
|
void EndBSPFile( bool do_write ){
|
|
Sys_FPrintf( SYS_VRB, "--- EndBSPFile ---\n" );
|
|
|
|
EmitPlanes();
|
|
|
|
numBSPEntities = entities.size();
|
|
UnparseEntities();
|
|
|
|
if ( do_write ) {
|
|
/* write the surface extra file */
|
|
WriteSurfaceExtraFile( source );
|
|
|
|
/* write the bsp */
|
|
WriteBSPFile( StringStream( source, ".bsp" ) );
|
|
}
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
EmitBrushes()
|
|
writes the brush list to the bsp
|
|
*/
|
|
|
|
void EmitBrushes( brushlist_t& brushes, int *firstBrush, int *numBrushes ){
|
|
/* set initial brush */
|
|
if ( firstBrush != NULL ) {
|
|
*firstBrush = bspBrushes.size();
|
|
}
|
|
if ( numBrushes != NULL ) {
|
|
*numBrushes = 0;
|
|
}
|
|
|
|
/* walk list of brushes */
|
|
for ( brush_t& b : brushes )
|
|
{
|
|
/* get bsp brush */
|
|
b.outputNum = bspBrushes.size();
|
|
bspBrush_t& db = bspBrushes.emplace_back();
|
|
if ( numBrushes != NULL ) {
|
|
( *numBrushes )++;
|
|
}
|
|
|
|
db.shaderNum = EmitShader( b.contentShader->shader, &b.contentShader->contentFlags, &b.contentShader->surfaceFlags );
|
|
db.firstSide = bspBrushSides.size();
|
|
|
|
/* walk sides */
|
|
db.numSides = 0;
|
|
for ( side_t& side : b.sides )
|
|
{
|
|
/* set output number to bogus initially */
|
|
side.outputNum = -1;
|
|
|
|
/* emit side */
|
|
side.outputNum = bspBrushSides.size();
|
|
bspBrushSide_t& cp = bspBrushSides.emplace_back();
|
|
db.numSides++;
|
|
cp.planeNum = side.planenum;
|
|
|
|
/* emit shader */
|
|
if ( side.shaderInfo ) {
|
|
cp.shaderNum = EmitShader( side.shaderInfo->shader, &side.shaderInfo->contentFlags, &side.shaderInfo->surfaceFlags );
|
|
}
|
|
else if( side.bevel ) { /* emit surfaceFlags for bevels to get correct physics at walkable brush edges and vertices */
|
|
cp.shaderNum = EmitShader( NULL, NULL, &side.surfaceFlags );
|
|
}
|
|
else{
|
|
cp.shaderNum = EmitShader( NULL, NULL, NULL );
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
EmitFogs() - ydnar
|
|
turns map fogs into bsp fogs
|
|
*/
|
|
|
|
void EmitFogs(){
|
|
/* walk list */
|
|
for ( size_t i = 0; i < mapFogs.size(); ++i )
|
|
{
|
|
const fog_t& fog = mapFogs[i];
|
|
bspFog_t& bspFog = bspFogs.emplace_back();
|
|
/* set shader */
|
|
strcpy( bspFog.shader, fog.si->shader );
|
|
|
|
/* global fog doesn't have an associated brush */
|
|
if ( fog.brush == NULL ) {
|
|
bspFog.brushNum = -1;
|
|
bspFog.visibleSide = -1;
|
|
}
|
|
else
|
|
{
|
|
/* set brush */
|
|
bspFog.brushNum = fog.brush->outputNum;
|
|
bspFog.visibleSide = -1; // default to something sensible, not just zero index
|
|
|
|
/* try to use forced visible side */
|
|
if ( fog.visibleSide >= 0 ) {
|
|
bspFog.visibleSide = fog.visibleSide;
|
|
continue;
|
|
}
|
|
|
|
/* find visible axial side */
|
|
for ( size_t j = 6; j-- > 0; ) // prioritize +Z (index 5) then -Z (index 4) in ambiguous case; fogged pit is assumed as most likely case
|
|
{
|
|
if ( !fog.brush->sides[ j ].visibleHull.empty() && !( fog.brush->sides[ j ].compileFlags & C_NODRAW ) ) {
|
|
Sys_Printf( "Fog %zu has visible side %zu\n", i, j );
|
|
bspFog.visibleSide = j;
|
|
break;
|
|
}
|
|
}
|
|
/* try other sides */
|
|
if( bspFog.visibleSide < 0 ){
|
|
for ( size_t j = 6; j < fog.brush->sides.size(); ++j )
|
|
{
|
|
if ( !fog.brush->sides[ j ].visibleHull.empty() && !( fog.brush->sides[ j ].compileFlags & C_NODRAW ) ) {
|
|
Sys_Printf( "Fog %zu has visible side %zu\n", i, j );
|
|
bspFog.visibleSide = j;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/* warn about overflow */
|
|
if( g_game->load == LoadRBSPFile ){
|
|
if( mapFogs.size() > MAX_RBSP_FOGS )
|
|
Sys_Warning( "MAX_RBSP_FOGS (%i) exceeded (%zu). Visual inconsistencies are expected.\n", MAX_RBSP_FOGS, mapFogs.size() );
|
|
}
|
|
else if( mapFogs.size() > MAX_IBSP_FOGS )
|
|
Sys_Warning( "MAX_IBSP_FOGS (%i) exceeded (%zu). Visual inconsistencies are expected.\n", MAX_IBSP_FOGS, mapFogs.size() );
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
BeginModel()
|
|
sets up a new brush model
|
|
*/
|
|
|
|
void BeginModel( const entity_t& e ){
|
|
MinMax minmax;
|
|
MinMax lgMinmax; /* ydnar: lightgrid mins/maxs */
|
|
|
|
/* bound the brushes */
|
|
for ( const brush_t& b : e.brushes )
|
|
{
|
|
/* ignore non-real brushes (origin, etc) */
|
|
if ( b.sides.empty() ) {
|
|
continue;
|
|
}
|
|
minmax.extend( b.minmax );
|
|
|
|
/* ydnar: lightgrid bounds */
|
|
if ( b.compileFlags & C_LIGHTGRID ) {
|
|
lgMinmax.extend( b.minmax );
|
|
}
|
|
}
|
|
|
|
/* bound patches */
|
|
for ( const parseMesh_t *p = e.patches; p; p = p->next )
|
|
{
|
|
for ( const bspDrawVert_t& vert : Span( p->mesh.verts, p->mesh.width * p->mesh.height ) )
|
|
minmax.extend( vert.xyz );
|
|
}
|
|
|
|
/* get model */
|
|
bspModel_t& mod = bspModels.emplace_back();
|
|
|
|
/* 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 = bspDrawSurfaces.size();
|
|
mod.firstBSPBrush = bspBrushes.size();
|
|
}
|
|
|
|
|
|
|
|
|
|
/*
|
|
EndModel()
|
|
finish a model's processing
|
|
*/
|
|
|
|
void EndModel( const 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 = bspDrawSurfaces.size() - mod.firstBSPSurface;
|
|
mod.firstBSPBrush = e.firstBrush;
|
|
mod.numBSPBrushes = e.numBrushes;
|
|
}
|