/
cm_load.cpp
1189 lines (951 loc) · 28.1 KB
/
cm_load.cpp
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/*
===========================================================================
Daemon GPL Source Code
Copyright (C) 1999-2010 id Software LLC, a ZeniMax Media company.
This file is part of the Daemon GPL Source Code (Daemon Source Code).
Daemon Source Code 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.
Daemon Source Code 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 Daemon Source Code. If not, see <http://www.gnu.org/licenses/>.
In addition, the Daemon Source Code is also subject to certain additional terms.
You should have received a copy of these additional terms immediately following the
terms and conditions of the GNU General Public License which accompanied the Daemon
Source Code. If not, please request a copy in writing from id Software at the address
below.
If you have questions concerning this license or the applicable additional terms, you
may contact in writing id Software LLC, c/o ZeniMax Media Inc., Suite 120, Rockville,
Maryland 20850 USA.
===========================================================================
*/
#include "cm_local.h"
#include <common/FileSystem.h>
// to allow boxes to be treated as brush models, we allocate
// some extra indexes along with those needed by the map
static const int BOX_LEAF_BRUSHES = 1; // ydnar
static const int BOX_BRUSHES = 1;
static const int BOX_SIDES = 6;
static const int BOX_LEAFS = 2;
static const int BOX_PLANES = 12;
#define LL( x ) x = LittleLong( x )
clipMap_t cm;
int c_pointcontents;
int c_traces, c_brush_traces, c_patch_traces, c_trisoup_traces;
cmodel_t box_model;
cplane_t *box_planes;
cbrush_t *box_brush;
void CM_InitBoxHull();
void CM_FloodAreaConnections();
Cvar::Cvar<bool> cm_forceTriangles(VM_STRING_PREFIX "cm_forceTriangles", "Convert all patches into triangles?", Cvar::CHEAT | Cvar::ROM, false);
Log::Logger cmLog(VM_STRING_PREFIX "common.cm");
static std::vector<void*> allocations;
void* CM_Alloc( int size )
{
void* alloc = malloc(size);
memset(alloc, 0, size);
allocations.push_back(alloc);
return alloc;
}
void CM_FreeAll()
{
for (auto alloc : allocations)
{
free(alloc);
}
allocations.clear();
}
/*
===============================================================================
MAP LOADING
===============================================================================
*/
/*
=================
CMod_LoadShaders
=================
*/
void CMod_LoadShaders(const byte *const cmod_base, lump_t *l)
{
dshader_t *in, *out;
int i, count;
in = ( dshader_t * )( cmod_base + l->fileofs );
if ( l->filelen % sizeof( *in ) )
{
Sys::Drop( "CMod_LoadShaders: funny lump size" );
}
count = l->filelen / sizeof( *in );
if ( count < 1 )
{
Sys::Drop( "Map with no shaders" );
}
cm.shaders = ( dshader_t * ) CM_Alloc( count * sizeof( *cm.shaders ) );
cm.numShaders = count;
Com_Memcpy( cm.shaders, in, count * sizeof( *cm.shaders ) );
if ( LittleLong( 1 ) != 1 )
{
out = cm.shaders;
for ( i = 0; i < count; i++, in++, out++ )
{
out->contentFlags = LittleLong( out->contentFlags );
out->surfaceFlags = LittleLong( out->surfaceFlags );
}
}
}
/*
=================
CMod_LoadSubmodels
=================
*/
void CMod_LoadSubmodels(const byte *const cmod_base, lump_t *l)
{
dmodel_t *in;
cmodel_t *out;
int i, j, count;
int *indexes;
in = ( dmodel_t * )( cmod_base + l->fileofs );
if ( l->filelen % sizeof( *in ) )
{
Sys::Drop( "CMod_LoadSubmodels: funny lump size" );
}
count = l->filelen / sizeof( *in );
if ( count < 1 )
{
Sys::Drop( "Map with no models" );
}
cm.cmodels = ( cmodel_t * ) CM_Alloc( count * sizeof( *cm.cmodels ) );
cm.numSubModels = count;
for ( i = 0; i < count; i++, in++, out++ )
{
out = &cm.cmodels[ i ];
for ( j = 0; j < 3; j++ )
{
// spread the mins / maxs by a pixel
out->mins[ j ] = LittleFloat( in->mins[ j ] ) - 1;
out->maxs[ j ] = LittleFloat( in->maxs[ j ] ) + 1;
}
if ( i == 0 )
{
continue; // world model doesn't need other info
}
// make a "leaf" just to hold the model's brushes and surfaces
out->leaf.numLeafBrushes = LittleLong( in->numBrushes );
indexes = ( int * ) CM_Alloc( out->leaf.numLeafBrushes * 4 );
out->leaf.firstLeafBrush = indexes;
for ( j = 0; j < out->leaf.numLeafBrushes; j++ )
{
indexes[ j ] = LittleLong( in->firstBrush ) + j;
}
out->leaf.numLeafSurfaces = LittleLong( in->numSurfaces );
indexes = ( int * ) CM_Alloc( out->leaf.numLeafSurfaces * 4 );
out->leaf.firstLeafSurface = indexes;
for ( j = 0; j < out->leaf.numLeafSurfaces; j++ )
{
indexes[ j ] = LittleLong( in->firstSurface ) + j;
}
}
}
/*
=================
CMod_LoadNodes
=================
*/
void CMod_LoadNodes(const byte *const cmod_base, lump_t *l)
{
dnode_t *in;
int child;
cNode_t *out;
int i, j, count;
in = ( dnode_t * )( cmod_base + l->fileofs );
if ( l->filelen % sizeof( *in ) )
{
Sys::Drop( "MOD_LoadBmodel: funny lump size" );
}
count = l->filelen / sizeof( *in );
if ( count < 1 )
{
Sys::Drop( "Map has no nodes" );
}
cm.nodes = ( cNode_t * ) CM_Alloc( count * sizeof( *cm.nodes ) );
cm.numNodes = count;
out = cm.nodes;
for ( i = 0; i < count; i++, out++, in++ )
{
out->plane = cm.planes + LittleLong( in->planeNum );
for ( j = 0; j < 2; j++ )
{
child = LittleLong( in->children[ j ] );
out->children[ j ] = child;
}
}
}
/*
=================
CM_BoundBrush
=================
*/
void CM_BoundBrush( cbrush_t *b )
{
b->bounds[ 0 ][ 0 ] = -b->sides[ 0 ].plane->dist;
b->bounds[ 1 ][ 0 ] = b->sides[ 1 ].plane->dist;
b->bounds[ 0 ][ 1 ] = -b->sides[ 2 ].plane->dist;
b->bounds[ 1 ][ 1 ] = b->sides[ 3 ].plane->dist;
b->bounds[ 0 ][ 2 ] = -b->sides[ 4 ].plane->dist;
b->bounds[ 1 ][ 2 ] = b->sides[ 5 ].plane->dist;
}
/*
=================
CMod_LoadBrushes
=================
*/
void CMod_LoadBrushes(const byte *const cmod_base, lump_t *l)
{
dbrush_t *in;
cbrush_t *out;
int i, count;
int shaderNum;
in = ( dbrush_t * )( cmod_base + l->fileofs );
if ( l->filelen % sizeof( *in ) )
{
Sys::Drop( "MOD_LoadBmodel: funny lump size" );
}
count = l->filelen / sizeof( *in );
cm.brushes = ( cbrush_t * ) CM_Alloc( ( BOX_BRUSHES + count ) * sizeof( *cm.brushes ) );
cm.numBrushes = count;
out = cm.brushes;
for ( i = 0; i < count; i++, out++, in++ )
{
out->sides = cm.brushsides + LittleLong( in->firstSide );
out->numsides = LittleLong( in->numSides );
shaderNum = LittleLong( in->shaderNum );
if ( shaderNum < 0 || shaderNum >= cm.numShaders )
{
Sys::Drop( "CMod_LoadBrushes: bad shaderNum: %i", shaderNum );
}
out->contents = cm.shaders[ shaderNum ].contentFlags;
CM_BoundBrush( out );
}
}
/*
=================
CMod_LoadLeafs
=================
*/
void CMod_LoadLeafs(const byte *const cmod_base, lump_t *l)
{
int i;
cLeaf_t *out;
dleaf_t *in;
int count;
in = ( dleaf_t * )( cmod_base + l->fileofs );
if ( l->filelen % sizeof( *in ) )
{
Sys::Drop( "MOD_LoadBmodel: funny lump size" );
}
count = l->filelen / sizeof( *in );
if ( count < 1 )
{
Sys::Drop( "Map with no leafs" );
}
cm.leafs = ( cLeaf_t * ) CM_Alloc( ( BOX_LEAFS + count ) * sizeof( *cm.leafs ) );
cm.numLeafs = count;
out = cm.leafs;
for ( i = 0; i < count; i++, in++, out++ )
{
out->cluster = LittleLong( in->cluster );
out->area = LittleLong( in->area );
out->firstLeafBrush = cm.leafbrushes + LittleLong( in->firstLeafBrush );
out->numLeafBrushes = LittleLong( in->numLeafBrushes );
out->firstLeafSurface = cm.leafsurfaces + LittleLong( in->firstLeafSurface );
out->numLeafSurfaces = LittleLong( in->numLeafSurfaces );
if ( out->cluster >= cm.numClusters )
{
cm.numClusters = out->cluster + 1;
}
if ( out->area >= cm.numAreas )
{
cm.numAreas = out->area + 1;
}
}
cm.areas = ( cArea_t * ) CM_Alloc( cm.numAreas * sizeof( *cm.areas ) );
cm.areaPortals = ( int * ) CM_Alloc( cm.numAreas * cm.numAreas * sizeof( *cm.areaPortals ) );
}
/*
=================
CMod_LoadPlanes
=================
*/
void CMod_LoadPlanes(const byte *const cmod_base, lump_t *l)
{
int i, j;
cplane_t *out;
dplane_t *in;
int count;
in = ( dplane_t * )( cmod_base + l->fileofs );
if ( l->filelen % sizeof( *in ) )
{
Sys::Drop( "MOD_LoadBmodel: funny lump size" );
}
count = l->filelen / sizeof( *in );
if ( count < 1 )
{
Sys::Drop( "Map with no planes" );
}
cm.planes = ( cplane_t * ) CM_Alloc( ( BOX_PLANES + count ) * sizeof( *cm.planes ) );
cm.numPlanes = count;
out = cm.planes;
for ( i = 0; i < count; i++, in++, out++ )
{
for ( j = 0; j < 3; j++ )
{
out->normal[ j ] = LittleFloat( in->normal[ j ] );
}
out->dist = LittleFloat( in->dist );
out->type = PlaneTypeForNormal( out->normal );
SetPlaneSignbits( out );
}
}
/*
=================
CMod_LoadLeafBrushes
=================
*/
void CMod_LoadLeafBrushes(const byte *const cmod_base, lump_t *l)
{
int i;
int *out;
int *in;
int count;
in = ( int * )( cmod_base + l->fileofs );
if ( l->filelen % sizeof( *in ) )
{
Sys::Drop( "MOD_LoadBmodel: funny lump size" );
}
count = l->filelen / sizeof( *in );
// ydnar: more than <count> brushes are stored in leafbrushes...
cm.leafbrushes = ( int * ) CM_Alloc( ( BOX_LEAF_BRUSHES + count ) * sizeof( *cm.leafbrushes ) );
cm.numLeafBrushes = count;
out = cm.leafbrushes;
for ( i = 0; i < count; i++, in++, out++ )
{
*out = LittleLong( *in );
}
}
/*
=================
CMod_LoadLeafSurfaces
=================
*/
void CMod_LoadLeafSurfaces(const byte *const cmod_base, lump_t *l)
{
int i;
int *out;
int *in;
int count;
in = ( int * )( cmod_base + l->fileofs );
if ( l->filelen % sizeof( *in ) )
{
Sys::Drop( "MOD_LoadBmodel: funny lump size" );
}
count = l->filelen / sizeof( *in );
cm.leafsurfaces = ( int * ) CM_Alloc( count * sizeof( *cm.leafsurfaces ) );
cm.numLeafSurfaces = count;
out = cm.leafsurfaces;
for ( i = 0; i < count; i++, in++, out++ )
{
*out = LittleLong( *in );
}
}
/*
=================
CMod_LoadBrushSides
=================
*/
void CMod_LoadBrushSides(const byte *const cmod_base, lump_t *l)
{
int i;
cbrushside_t *out;
dbrushside_t *in;
int count;
int num;
int shaderNum;
in = ( dbrushside_t * )( cmod_base + l->fileofs );
if ( l->filelen % sizeof( *in ) )
{
Sys::Drop( "MOD_LoadBmodel: funny lump size" );
}
count = l->filelen / sizeof( *in );
cm.brushsides = ( cbrushside_t * ) CM_Alloc( ( BOX_SIDES + count ) * sizeof( *cm.brushsides ) );
cm.numBrushSides = count;
out = cm.brushsides;
for ( i = 0; i < count; i++, in++, out++ )
{
num = LittleLong( in->planeNum );
out->plane = &cm.planes[ num ];
shaderNum = LittleLong( in->shaderNum );
if ( shaderNum < 0 || shaderNum >= cm.numShaders )
{
Sys::Drop( "CMod_LoadBrushSides: bad shaderNum: %i", shaderNum );
}
out->surfaceFlags = cm.shaders[ shaderNum ].surfaceFlags;
}
}
static const float CM_EDGE_VERTEX_EPSILON = 0.1f;
/*
=================
CMod_BrushEdgesAreTheSame
=================
*/
static bool CMod_BrushEdgesAreTheSame( const vec3_t p0, const vec3_t p1, const vec3_t q0, const vec3_t q1 )
{
if ( VectorCompareEpsilon( p0, q0, CM_EDGE_VERTEX_EPSILON ) && VectorCompareEpsilon( p1, q1, CM_EDGE_VERTEX_EPSILON ) )
{
return true;
}
if ( VectorCompareEpsilon( p1, q0, CM_EDGE_VERTEX_EPSILON ) && VectorCompareEpsilon( p0, q1, CM_EDGE_VERTEX_EPSILON ) )
{
return true;
}
return false;
}
/*
=================
CMod_AddEdgeToBrush
=================
*/
static bool CMod_AddEdgeToBrush( const vec3_t p0, const vec3_t p1, cbrushedge_t *edges, int *numEdges )
{
int i;
if ( !edges || !numEdges )
{
return false;
}
for ( i = 0; i < *numEdges; i++ )
{
if ( CMod_BrushEdgesAreTheSame( p0, p1, edges[ i ].p0, edges[ i ].p1 ) )
{
return false;
}
}
VectorCopy( p0, edges[ *numEdges ].p0 );
VectorCopy( p1, edges[ *numEdges ].p1 );
( *numEdges ) ++;
return true;
}
/*
=================
CMod_CreateBrushSideWindings
=================
*/
static void CMod_CreateBrushSideWindings()
{
int i, j, k;
winding_t *w;
cbrushside_t *side, *chopSide;
cplane_t *plane;
cbrush_t *brush;
cbrushedge_t *tempEdges;
int numEdges;
int edgesAlloc;
int totalEdgesAlloc = 0;
int totalEdges = 0;
for ( i = 0; i < cm.numBrushes; i++ )
{
brush = &cm.brushes[ i ];
numEdges = 0;
// walk the list of brush sides
for ( j = 0; j < brush->numsides; j++ )
{
// get side and plane
side = &brush->sides[ j ];
plane = side->plane;
w = BaseWindingForPlane( plane->normal, plane->dist );
// walk the list of brush sides
for ( k = 0; k < brush->numsides && w != nullptr; k++ )
{
chopSide = &brush->sides[ k ];
if ( chopSide == side )
{
continue;
}
if ( chopSide->planeNum == ( side->planeNum ^ 1 ) )
{
continue; // back side clipaway
}
plane = &cm.planes[ chopSide->planeNum ^ 1 ];
ChopWindingInPlace( &w, plane->normal, plane->dist, 0 );
}
if ( w )
{
numEdges += w->numpoints;
}
// set side winding
side->winding = w;
}
// Allocate a temporary buffer of the maximal size
tempEdges = ( cbrushedge_t * ) malloc( sizeof( cbrushedge_t ) * numEdges );
brush->numEdges = 0;
// compose the points into edges
for ( j = 0; j < brush->numsides; j++ )
{
side = &brush->sides[ j ];
if ( side->winding )
{
for ( k = 0; k < side->winding->numpoints - 1; k++ )
{
if ( brush->numEdges == numEdges )
{
Sys::Error( "Insufficient memory allocated for collision map edges" );
}
CMod_AddEdgeToBrush( side->winding->p[ k ], side->winding->p[ k + 1 ], tempEdges, &brush->numEdges );
}
FreeWinding( side->winding );
side->winding = nullptr;
}
}
// Allocate a buffer of the actual size
edgesAlloc = sizeof( cbrushedge_t ) * brush->numEdges;
totalEdgesAlloc += edgesAlloc;
brush->edges = ( cbrushedge_t * ) CM_Alloc( edgesAlloc );
// Copy temporary buffer to permanent buffer
Com_Memcpy( brush->edges, tempEdges, edgesAlloc );
// Free temporary buffer
free( tempEdges );
totalEdges += brush->numEdges;
}
cmLog.Debug( "Allocated %d bytes for %d collision map edges...", totalEdgesAlloc, totalEdges );
}
/*
=================
CMod_LoadEntityString
=================
*/
void CMod_LoadEntityString(const byte *const cmod_base, lump_t *l)
{
const char *p, *token;
char keyname[ MAX_TOKEN_CHARS ];
char value[ MAX_TOKEN_CHARS ];
cm.entityString = ( char * ) CM_Alloc( l->filelen + 1);
cm.numEntityChars = l->filelen;
Com_Memcpy( cm.entityString, cmod_base + l->fileofs, l->filelen );
cm.entityString[l->filelen] = '\0';
p = cm.entityString;
// only parse the world spawn
while (true)
{
// parse key
token = COM_ParseExt2( &p, true );
if ( !*token )
{
Log::Warn( "unexpected end of entities string while parsing worldspawn" );
break;
}
if ( *token == '{' )
{
continue;
}
if ( *token == '}' )
{
break;
}
Q_strncpyz( keyname, token, sizeof( keyname ) );
// parse value
token = COM_ParseExt2( &p, false );
if ( !*token )
{
continue;
}
Q_strncpyz( value, token, sizeof( value ) );
// check for per-poly collision support
if ( !Q_stricmp( keyname, "perPolyCollision" ) && !Q_stricmp( value, "1" ) )
{
Log::Notice( "map features per poly collision detection" );
cm.perPolyCollision = true;
continue;
}
if ( !Q_stricmp( keyname, "classname" ) && Q_stricmp( value, "worldspawn" ) )
{
Log::Warn( "expected worldspawn, found '%s'", value );
break;
}
}
}
/*
=================
CMod_LoadVisibility
=================
*/
static const int VIS_HEADER = 8;
void CMod_LoadVisibility(const byte *const cmod_base, lump_t *l)
{
int len = l->filelen;
if ( !len )
{
cm.clusterBytes = ( cm.numClusters + 31 ) & ~31;
cm.visibility = ( byte * ) CM_Alloc( cm.clusterBytes );
memset( cm.visibility, 255, cm.clusterBytes );
return;
}
const byte *buf = cmod_base + l->fileofs;
cm.vised = true;
cm.visibility = ( byte * ) CM_Alloc( len - VIS_HEADER );
cm.numClusters = LittleLong( ( ( int * ) buf ) [ 0 ] );
cm.clusterBytes = LittleLong( ( ( int * ) buf ) [ 1 ] );
Com_Memcpy( cm.visibility, buf + VIS_HEADER, len - VIS_HEADER );
}
//==================================================================
/*
=================
CMod_LoadSurfaces
=================
*/
static const int MAX_PATCH_SIZE = 64;
static const int MAX_PATCH_VERTS = ( MAX_PATCH_SIZE * MAX_PATCH_SIZE );
void CMod_LoadSurfaces(const byte *const cmod_base, lump_t *surfs, lump_t *verts, lump_t *indexesLump)
{
drawVert_t *dv, *dv_p;
dsurface_t *in;
int count;
int i;
cSurface_t *surface;
int numVertexes;
static vec3_t vertexes[ SHADER_MAX_VERTEXES ];
int width, height;
int shaderNum;
int numIndexes;
static int indexes[ SHADER_MAX_INDEXES ];
int *index;
int *index_p;
in = ( dsurface_t * )( cmod_base + surfs->fileofs );
if ( surfs->filelen % sizeof( *in ) )
{
Sys::Drop( "CMod_LoadSurfaces: funny lump size" );
}
cm.numSurfaces = count = surfs->filelen / sizeof( *in );
cm.surfaces = ( cSurface_t ** ) CM_Alloc( cm.numSurfaces * sizeof( cm.surfaces[ 0 ] ) );
dv = ( drawVert_t * )( cmod_base + verts->fileofs );
if ( verts->filelen % sizeof( *dv ) )
{
Sys::Drop( "CMod_LoadSurfaces: funny lump size" );
}
index = ( int * )( cmod_base + indexesLump->fileofs );
if ( indexesLump->filelen % sizeof( *index ) )
{
Sys::Drop( "CMod_LoadSurfaces: funny lump size" );
}
// scan through all the surfaces
for ( i = 0; i < count; i++, in++ )
{
if ( LittleLong( in->surfaceType ) == mapSurfaceType_t::MST_PATCH )
{
// FIXME: check for non-colliding patches
cm.surfaces[ i ] = surface = ( cSurface_t * ) CM_Alloc( sizeof( *surface ) );
surface->type = mapSurfaceType_t::MST_PATCH;
// load the full drawverts onto the stack
width = LittleLong( in->patchWidth );
height = LittleLong( in->patchHeight );
numVertexes = width * height;
if ( numVertexes > MAX_PATCH_VERTS )
{
Sys::Drop( "CMod_LoadSurfaces: MAX_PATCH_VERTS" );
}
dv_p = dv + LittleLong( in->firstVert );
for ( int j = 0; j < numVertexes; j++, dv_p++ )
{
vertexes[ j ][ 0 ] = LittleFloat( dv_p->xyz[ 0 ] );
vertexes[ j ][ 1 ] = LittleFloat( dv_p->xyz[ 1 ] );
vertexes[ j ][ 2 ] = LittleFloat( dv_p->xyz[ 2 ] );
}
shaderNum = LittleLong( in->shaderNum );
surface->contents = cm.shaders[ shaderNum ].contentFlags;
surface->surfaceFlags = cm.shaders[ shaderNum ].surfaceFlags;
// create the internal facet structure
surface->sc = CM_GeneratePatchCollide( width, height, vertexes );
}
else if ( LittleLong( in->surfaceType ) == mapSurfaceType_t::MST_TRIANGLE_SOUP && ( cm.perPolyCollision || cm_forceTriangles.Get() ) )
{
// FIXME: check for non-colliding triangle soups
cm.surfaces[ i ] = surface = ( cSurface_t * ) CM_Alloc( sizeof( *surface ) );
surface->type = mapSurfaceType_t::MST_TRIANGLE_SOUP;
// load the full drawverts onto the stack
numVertexes = LittleLong( in->numVerts );
if ( numVertexes > SHADER_MAX_VERTEXES )
{
Sys::Drop( "CMod_LoadSurfaces: SHADER_MAX_VERTEXES" );
}
dv_p = dv + LittleLong( in->firstVert );
for ( int j = 0; j < numVertexes; j++, dv_p++ )
{
vertexes[ j ][ 0 ] = LittleFloat( dv_p->xyz[ 0 ] );
vertexes[ j ][ 1 ] = LittleFloat( dv_p->xyz[ 1 ] );
vertexes[ j ][ 2 ] = LittleFloat( dv_p->xyz[ 2 ] );
}
numIndexes = LittleLong( in->numIndexes );
if ( numIndexes > SHADER_MAX_INDEXES )
{
Sys::Drop( "CMod_LoadSurfaces: SHADER_MAX_INDEXES" );
}
index_p = index + LittleLong( in->firstIndex );
for ( int j = 0; j < numIndexes; j++, index_p++ )
{
indexes[ j ] = LittleLong( *index_p );
if ( indexes[ j ] < 0 || indexes[ j ] >= numVertexes )
{
Sys::Drop( "CMod_LoadSurfaces: Bad index in trisoup surface" );
}
}
shaderNum = LittleLong( in->shaderNum );
surface->contents = cm.shaders[ shaderNum ].contentFlags;
surface->surfaceFlags = cm.shaders[ shaderNum ].surfaceFlags;
// create the internal facet structure
surface->sc = CM_GenerateTriangleSoupCollide( numVertexes, vertexes, numIndexes, indexes );
}
}
}
//==================================================================
/*
==================
CM_LoadMap
Loads in the map and all submodels
==================
*/
void CM_LoadMap(Str::StringRef name)
{
dheader_t header;
cmLog.Debug( "CM_LoadMap(%s)", name);
std::string mapFile = "maps/" + name + ".bsp";
std::string mapData;
try {
mapData = FS::PakPath::ReadFile(mapFile);
} catch (std::system_error&) {
Sys::Drop("Could not load %s", mapFile.c_str());
}
// free old stuff
CM_FreeAll();
CM_ClearMap();
if ( !name[ 0 ] )
{
cm.numLeafs = 1;
cm.numClusters = 1;
cm.numAreas = 1;
cm.cmodels = ( cmodel_t * ) CM_Alloc( sizeof( *cm.cmodels ) );
return;
}
header = * ( dheader_t * ) mapData.data();
for (unsigned i = 0; i < sizeof( dheader_t ) / 4; i++ )
{
( ( int * ) &header ) [ i ] = LittleLong( ( ( int * ) &header ) [ i ] );
}
if ( header.version != BSP_VERSION && header.version != BSP_VERSION_Q3 )
{
Sys::Drop( "CM_LoadMap: %s has wrong version number (%i should be %i for ET or %i for Q3)",
name.c_str(), header.version, BSP_VERSION, BSP_VERSION_Q3 );
}
const byte *const cmod_base = reinterpret_cast<const byte*>(mapData.data());
// load into heap
CMod_LoadShaders(cmod_base, &header.lumps[LUMP_SHADERS]);
CMod_LoadLeafBrushes(cmod_base, &header.lumps[LUMP_LEAFBRUSHES]);
CMod_LoadLeafSurfaces(cmod_base, &header.lumps[LUMP_LEAFSURFACES]);
CMod_LoadLeafs(cmod_base, &header.lumps[LUMP_LEAFS]);
CMod_LoadPlanes(cmod_base, &header.lumps[LUMP_PLANES]);
CMod_LoadBrushSides(cmod_base, &header.lumps[LUMP_BRUSHSIDES]);
CMod_LoadBrushes(cmod_base, &header.lumps[LUMP_BRUSHES]);
CMod_LoadSubmodels(cmod_base, &header.lumps[LUMP_MODELS]);
CMod_LoadNodes(cmod_base, &header.lumps[LUMP_NODES]);
CMod_LoadEntityString(cmod_base, &header.lumps[LUMP_ENTITIES]);
CMod_LoadVisibility(cmod_base, &header.lumps[LUMP_VISIBILITY]);
CMod_LoadSurfaces(cmod_base,
&header.lumps[LUMP_SURFACES], &header.lumps[LUMP_DRAWVERTS], &header.lumps[LUMP_DRAWINDEXES]);
CMod_CreateBrushSideWindings();
CM_InitBoxHull();
CM_FloodAreaConnections();
}
/*
==================
CM_ClearMap
==================
*/
void CM_ClearMap()
{
Com_Memset( &cm, 0, sizeof( cm ) );
CM_ClearLevelPatches();
}
/*
==================
CM_ClipHandleToModel
==================
*/
cmodel_t *CM_ClipHandleToModel( clipHandle_t handle )
{
if ( handle < 0 )
{
Sys::Drop( "CM_ClipHandleToModel: bad handle %i", handle );
}
if ( handle < cm.numSubModels )
{
return &cm.cmodels[ handle ];
}
if ( handle == BOX_MODEL_HANDLE || handle == CAPSULE_MODEL_HANDLE )
{
return &box_model;