d4708
/
source-engine
mirror of https://github.com/nillerusr/source-engine.git
1
0
Fork 0
Code Issues Projects Releases Wiki Activity
Modified source engine (2017) developed by valve and leaked in 2020. Not for commercial purporses
You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
92 Commits
25 Branches
6 Tags
221 MiB
Tree: 2f8a8d893f
Branches Tags
${ item.name }
Create tag ${ searchTerm }
Create branch ${ searchTerm }
from '2f8a8d893f'
${ noResults }
source-engine/utils/vbsp/writebsp.cpp

1554 lines
36 KiB
Raw Normal View History Unescape

1
5 years ago
//========= Copyright Valve Corporation, All rights reserved. ============//
//
// Purpose:
//
// $NoKeywords: $
//
//=============================================================================//
#include "vbsp.h"
#include "disp_vbsp.h"
#include "utlvector.h"
#include "faces.h"
#include "builddisp.h"
#include "tier1/strtools.h"
#include "utilmatlib.h"
#include "utldict.h"
#include "map.h"
int c_nofaces;
int c_facenodes;
// NOTE: This is a global used to link faces back to the tree node/portals they came from
// it's used when filling water volumes
node_t *dfacenodes[MAX_MAP_FACES];
/*
=========================================================
ONLY SAVE OUT PLANES THAT ARE ACTUALLY USED AS NODES
=========================================================
*/
void EmitFaceVertexes (face_t **list, face_t *f);
void AssignOccluderAreas();
/*
============
EmitPlanes
There is no oportunity to discard planes, because all of the original
brushes will be saved in the map.
============
*/
void EmitPlanes (void)
{
int i;
dplane_t *dp;
plane_t *mp;
int planetranslate[MAX_MAP_PLANES];
mp = g_MainMap->mapplanes;
for (i=0 ; i<g_MainMap->nummapplanes ; i++, mp++)
{
dp = &dplanes[numplanes];
planetranslate[i] = numplanes;
VectorCopy ( mp->normal, dp->normal);
dp->dist = mp->dist;
dp->type = mp->type;
numplanes++;
}
}
//========================================================
void EmitMarkFace (dleaf_t *leaf_p, face_t *f)
{
int i;
int facenum;
while (f->merged)
f = f->merged;
if (f->split[0])
{
EmitMarkFace (leaf_p, f->split[0]);
EmitMarkFace (leaf_p, f->split[1]);
return;
}
facenum = f->outputnumber;
if (facenum == -1)
return; // degenerate face
if (facenum < 0 || facenum >= numfaces)
Error ("Bad leafface");
for (i=leaf_p->firstleafface ; i<numleaffaces ; i++)
if (dleaffaces[i] == facenum)
break; // merged out face
if (i == numleaffaces)
{
if (numleaffaces >= MAX_MAP_LEAFFACES)
Error ("Too many detail brush faces, max = %d\n", MAX_MAP_LEAFFACES);
dleaffaces[numleaffaces] = facenum;
numleaffaces++;
}
}
/*
==================
EmitLeaf
==================
*/
void EmitLeaf (node_t *node)
{
dleaf_t *leaf_p;
portal_t *p;
int s;
face_t *f;
bspbrush_t *b;
int i;
int brushnum;
leafface_t *pList;
// emit a leaf
if (numleafs >= MAX_MAP_LEAFS)
Error ("Too many BSP leaves, max = %d", MAX_MAP_LEAFS);
node->diskId = numleafs;
leaf_p = &dleafs[numleafs];
numleafs++;
if( nummodels == 0 )
{
leaf_p->cluster = node->cluster;
}
else
{
// Submodels don't have clusters. If this isn't set to -1 here, then there
// will be multiple leaves (albeit from different models) that reference
// the same cluster and parts of the code like ivp.cpp's ConvertWaterModelToPhysCollide
// won't work.
leaf_p->cluster = -1;
}
leaf_p->contents = node->contents;
leaf_p->area = node->area;
// By default, assume the leaf can see the skybox.
// VRAD will do the actual computation to see if it really can see the skybox
leaf_p->flags = LEAF_FLAGS_SKY;
//
// write bounding box info
//
VECTOR_COPY (node->mins, leaf_p->mins);
VECTOR_COPY (node->maxs, leaf_p->maxs);
//
// write the leafbrushes
//
leaf_p->firstleafbrush = numleafbrushes;
for (b=node->brushlist ; b ; b=b->next)
{
if (numleafbrushes >= MAX_MAP_LEAFBRUSHES)
Error ("Too many brushes in one leaf, max = %d", MAX_MAP_LEAFBRUSHES);
brushnum = b->original - g_MainMap->mapbrushes;
for (i=leaf_p->firstleafbrush ; i<numleafbrushes ; i++)
{
if (dleafbrushes[i] == brushnum)
break;
}
if (i == numleafbrushes)
{
dleafbrushes[numleafbrushes] = brushnum;
numleafbrushes++;
}
}
leaf_p->numleafbrushes = numleafbrushes - leaf_p->firstleafbrush;
//
// write the leaffaces
//
if (leaf_p->contents & CONTENTS_SOLID)
return; // no leaffaces in solids
leaf_p->firstleafface = numleaffaces;
for (p = node->portals ; p ; p = p->next[s])
{
s = (p->nodes[1] == node);
f = p->face[s];
if (!f)
continue; // not a visible portal
EmitMarkFace (leaf_p, f);
}
// emit the detail faces
for ( pList = node->leaffacelist; pList; pList = pList->pNext )
{
EmitMarkFace( leaf_p, pList->pFace );
}
leaf_p->numleaffaces = numleaffaces - leaf_p->firstleafface;
}
// per face plane - original face "side" list
side_t *pOrigFaceSideList[MAX_MAP_PLANES];
//-----------------------------------------------------------------------------
//-----------------------------------------------------------------------------
int CreateOrigFace( face_t *f )
{
int i, j;
dface_t *of;
side_t *side;
int vIndices[128];
int eIndex[2];
winding_t *pWinding;
// not a real face!
if( !f->w )
return -1;
// get the original face -- the "side"
side = f->originalface;
// get the original face winding
if( !side->winding )
{
return -1;
}
//
// get the next original face
//
if( numorigfaces >= MAX_MAP_FACES )
Error( "Too many faces in map, max = %d", MAX_MAP_FACES );
of = &dorigfaces[numorigfaces];
numorigfaces++;
// set original face to -1 -- it is an origianl face!
of->origFace = -1;
//
// add side to plane list
//
side->next = pOrigFaceSideList[f->planenum];
pOrigFaceSideList[f->planenum] = side;
side->origIndex = numorigfaces - 1;
pWinding = CopyWinding( side->winding );
//
// plane info
//
of->planenum = side->planenum;
if ( side->contents & CONTENTS_DETAIL )
of->onNode = 0;
else
of->onNode = 1;
of->side = side->planenum & 1;
//
// edge info
//
of->firstedge = numsurfedges;
of->numedges = side->winding->numpoints;
//
// material info
//
of->texinfo = side->texinfo;
of->dispinfo = f->dispinfo;
//
// save the vertices
//
for( i = 0; i < pWinding->numpoints; i++ )
{
//
// compare vertices
//
vIndices[i] = GetVertexnum( pWinding->p[i] );
}
//
// save off points -- as edges
//
for( i = 0; i < pWinding->numpoints; i++ )
{
//
// look for matching edges first
//
eIndex[0] = vIndices[i];
eIndex[1] = vIndices[(i+1)%pWinding->numpoints];
for( j = firstmodeledge; j < numedges; j++ )
{
if( ( eIndex[0] == dedges[j].v[1] ) &&
( eIndex[1] == dedges[j].v[0] ) &&
( edgefaces[j][0]->contents == f->contents ) )
{
// check for multiple backward edges!! -- shouldn't have
if( edgefaces[j][1] )
continue;
// set back edge
edgefaces[j][1] = f;
//
// get next surface edge
//
if( numsurfedges >= MAX_MAP_SURFEDGES )
Error( "Too much brush geometry in bsp, numsurfedges == MAX_MAP_SURFEDGES" );
dsurfedges[numsurfedges] = -j;
numsurfedges++;
break;
}
}
if( j == numedges )
{
//
// get next edge
//
AddEdge( eIndex[0], eIndex[1], f );
//
// get next surface edge
//
if( numsurfedges >= MAX_MAP_SURFEDGES )
Error( "Too much brush geometry in bsp, numsurfedges == MAX_MAP_SURFEDGES" );
dsurfedges[numsurfedges] = ( numedges - 1 );
numsurfedges++;
}
}
// return the index
return ( numorigfaces - 1 );
}
//-----------------------------------------------------------------------------
// Purpose: search for a face within the origface list and return the index if
// found
// Input: f - the face to compare
// Output: the index of the face it found, -1 if not found
//-----------------------------------------------------------------------------
int FindOrigFace( face_t *f )
{
int i;
static int bClear = 0;
side_t *pSide;
//
// initially clear the face side lists (per face plane)
//
if( !bClear )
{
for( i = 0; i < MAX_MAP_PLANES; i++ )
{
pOrigFaceSideList[i] = NULL;
}
bClear = 1;
}
//
// compare the sides
//
for( pSide = pOrigFaceSideList[f->planenum]; pSide; pSide = pSide->next )
{
if( pSide == f->originalface )
return pSide->origIndex;
}
// original face not found in list
return -1;
}
//-----------------------------------------------------------------------------
// Purpose: to find an the original face within the list of original faces, if
// a match is not found then create a new origFace -- either way pass
// back the index of the origface in the list
// Input: f - face containing the original face information
// Output: the index of the origface in the origface list
//-----------------------------------------------------------------------------
int FindOrCreateOrigFace( face_t *f )
{
int index;
// check for an original face
if( !f->originalface )
return -1;
//
// find or create a orig face and return the index
//
index = FindOrigFace( f );
if( index == -1 )
return CreateOrigFace( f );
else if( index == -2 )
return -1;
return index;
}
/*
==================
EmitFace
==================
*/
void EmitFace( face_t *f, qboolean onNode )
{
dface_t *df;
int i;
int e;
// void SubdivideFaceBySubdivSize( face_t *f ); // garymcthack
// SubdivideFaceBySubdivSize( f );
// set initial output number
f->outputnumber = -1;
// degenerated
if( f->numpoints < 3 )
return;
// not a final face
if( f->merged || f->split[0] || f->split[1] )
return;
// don't emit NODRAW faces for runtime
if ( texinfo[f->texinfo].flags & SURF_NODRAW )
{
// keep NODRAW terrain surfaces though
if ( f->dispinfo == -1 )
return;
Warning("NODRAW on terrain surface!\n");
}
// save output number so leaffaces can use
f->outputnumber = numfaces;
//
// get the next available .bsp face slot
//
if (numfaces >= MAX_MAP_FACES)
Error( "Too many faces in map, max = %d", MAX_MAP_FACES );
df = &dfaces[numfaces];
// Save the correlation between dfaces and faces -- since dfaces doesnt have worldcraft face id
dfaceids.AddToTail();
dfaceids[numfaces].hammerfaceid = f->originalface->id;
numfaces++;
//
// plane info - planenum is used by qlight, but not quake
//
df->planenum = f->planenum;
df->onNode = onNode;
df->side = f->planenum & 1;
//
// material info
//
df->texinfo = f->texinfo;
df->dispinfo = f->dispinfo;
df->smoothingGroups = f->smoothingGroups;
// save the original "side"/face data
df->origFace = FindOrCreateOrigFace( f );
df->surfaceFogVolumeID = -1;
dfacenodes[numfaces-1] = f->fogVolumeLeaf;
if ( f->fogVolumeLeaf )
{
Assert( f->fogVolumeLeaf->planenum == PLANENUM_LEAF );
}
//
// edge info
//
df->firstedge = numsurfedges;
df->numedges = f->numpoints;
// UNDONE: Nodraw faces have no winding - revisit to see if this is necessary
if ( f->w )
{
df->area = WindingArea( f->w );
}
else
{
df->area = 0;
}
df->firstPrimID = f->firstPrimID;
df->SetNumPrims( f->numPrims );
df->SetDynamicShadowsEnabled( f->originalface->m_bDynamicShadowsEnabled );
//
// save off points -- as edges
//
for( i = 0; i < f->numpoints; i++ )
{
//e = GetEdge (f->pts[i], f->pts[(i+1)%f->numpoints], f);
e = GetEdge2 (f->vertexnums[i], f->vertexnums[(i+1)%f->numpoints], f);
if (numsurfedges >= MAX_MAP_SURFEDGES)
Error( "Too much brush geometry in bsp, numsurfedges == MAX_MAP_SURFEDGES" );
dsurfedges[numsurfedges] = e;
numsurfedges++;
}
// Create overlay face lists.
side_t *pSide = f->originalface;
if ( pSide )
{
int nOverlayCount = pSide->aOverlayIds.Count();
if ( nOverlayCount > 0 )
{
Overlay_AddFaceToLists( ( numfaces - 1 ), pSide );
}
nOverlayCount = pSide->aWaterOverlayIds.Count();
if ( nOverlayCount > 0 )
{
OverlayTransition_AddFaceToLists( ( numfaces - 1 ), pSide );
}
}
}
//-----------------------------------------------------------------------------
// Purpose: Emit all of the faces stored at the leaves (faces from detail brushes)
//-----------------------------------------------------------------------------
void EmitLeafFaces( face_t *pLeafFaceList )
{
face_t *f = pLeafFaceList;
while ( f )
{
EmitFace( f, false );
f = f->next;
}
}
//-----------------------------------------------------------------------------
// Purpose: Free the list of faces stored at the leaves
//-----------------------------------------------------------------------------
void FreeLeafFaces( face_t *pLeafFaceList )
{
int count = 0;
face_t *f, *next;
f = pLeafFaceList;
while ( f )
{
next = f->next;
FreeFace( f );
f = next;
count++;
}
}
/*
============
EmitDrawingNode_r
============
*/
int EmitDrawNode_r (node_t *node)
{
dnode_t *n;
face_t *f;
int i;
if (node->planenum == PLANENUM_LEAF)
{
EmitLeaf (node);
return -numleafs;
}
// emit a node
if (numnodes == MAX_MAP_NODES)
Error ("MAX_MAP_NODES");
node->diskId = numnodes;
n = &dnodes[numnodes];
numnodes++;
VECTOR_COPY (node->mins, n->mins);
VECTOR_COPY (node->maxs, n->maxs);
if (node->planenum & 1)
Error ("WriteDrawNodes_r: odd planenum");
n->planenum = node->planenum;
n->firstface = numfaces;
n->area = node->area;
if (!node->faces)
c_nofaces++;
else
c_facenodes++;
for (f=node->faces ; f ; f=f->next)
EmitFace (f, true);
n->numfaces = numfaces - n->firstface;
//
// recursively output the other nodes
//
for (i=0 ; i<2 ; i++)
{
if (node->children[i]->planenum == PLANENUM_LEAF)
{
n->children[i] = -(numleafs + 1);
EmitLeaf (node->children[i]);
}
else
{
n->children[i] = numnodes;
EmitDrawNode_r (node->children[i]);
}
}
return n - dnodes;
}
//=========================================================
// This will generate a scratchpad file with the level's geometry in it and the noshadow faces drawn red.
// #define SCRATCHPAD_NO_SHADOW_FACES
#if defined( SCRATCHPAD_NO_SHADOW_FACES )
#include "scratchpad_helpers.h"
IScratchPad3D *g_pPad;
#endif
void MarkNoShadowFaces()
{
#if defined( SCRATCHPAD_NO_SHADOW_FACES )
g_pPad = ScratchPad3D_Create();
ScratchPad_DrawWorld( g_pPad, false, CSPColor(1,1,1,0.3) );
for ( int iFace=0; iFace < numfaces; iFace++ )
{
dface_t *pFace = &dfaces[iFace];
if ( !pFace->AreDynamicShadowsEnabled() )
{
ScratchPad_DrawFace( g_pPad, pFace, iFace, CSPColor(1,0,0,1), Vector(1,0,0) );
ScratchPad_DrawFace( g_pPad, pFace, iFace, CSPColor(1,0,0,1), Vector(-1,0,0) );
ScratchPad_DrawFace( g_pPad, pFace, iFace, CSPColor(1,0,0,1), Vector(0,1,0) );
}
}
g_pPad->Release();
#endif
}
struct texinfomap_t
{
int refCount;
int outputIndex;
};
struct texdatamap_t
{
int refCount;
int outputIndex;
};
// Find the best used texinfo to remap this brush side
int FindMatchingBrushSideTexinfo( int sideIndex, const texinfomap_t *pMap )
{
dbrushside_t &side = dbrushsides[sideIndex];
// find one with the same flags & surfaceprops (even if the texture name is different)
int sideTexFlags = texinfo[side.texinfo].flags;
int sideTexData = texinfo[side.texinfo].texdata;
int sideSurfaceProp = g_SurfaceProperties[sideTexData];
for ( int j = 0; j < texinfo.Count(); j++ )
{
if ( pMap[j].refCount > 0 &&
texinfo[j].flags == sideTexFlags &&
g_SurfaceProperties[texinfo[j].texdata] == sideSurfaceProp )
{
// found one
return j;
}
}
// can't find a better match
return side.texinfo;
}
// Remove all unused texinfos and rebuild array
void ComapctTexinfoArray( texinfomap_t *pMap )
{
CUtlVector<texinfo_t> old;
old.CopyArray( texinfo.Base(), texinfo.Count() );
texinfo.RemoveAll();
int firstSky = -1;
int first2DSky = -1;
for ( int i = 0; i < old.Count(); i++ )
{
if ( !pMap[i].refCount )
{
pMap[i].outputIndex = -1;
continue;
}
// only add one sky texinfo + one 2D sky texinfo
if ( old[i].flags & SURF_SKY2D )
{
if ( first2DSky < 0 )
{
first2DSky = texinfo.AddToTail( old[i] );
}
pMap[i].outputIndex = first2DSky;
continue;
}
if ( old[i].flags & SURF_SKY )
{
if ( firstSky < 0 )
{
firstSky = texinfo.AddToTail( old[i] );
}
pMap[i].outputIndex = firstSky;
continue;
}
pMap[i].outputIndex = texinfo.AddToTail( old[i] );
}
}
void CompactTexdataArray( texdatamap_t *pMap )
{
CUtlVector<char> oldStringData;
oldStringData.CopyArray( g_TexDataStringData.Base(), g_TexDataStringData.Count() );
g_TexDataStringData.RemoveAll();
CUtlVector<int> oldStringTable;
oldStringTable.CopyArray( g_TexDataStringTable.Base(), g_TexDataStringTable.Count() );
g_TexDataStringTable.RemoveAll();
CUtlVector<dtexdata_t> oldTexData;
oldTexData.CopyArray( dtexdata, numtexdata );
// clear current table and rebuild
numtexdata = 0;
for ( int i = 0; i < oldTexData.Count(); i++ )
{
// unreferenced, note in map and skip
if ( !pMap[i].refCount )
{
pMap[i].outputIndex = -1;
continue;
}
pMap[i].outputIndex = numtexdata;
// get old string and re-add to table
const char *pString = &oldStringData[oldStringTable[oldTexData[i].nameStringTableID]];
int nameIndex = TexDataStringTable_AddOrFindString( pString );
// copy old texdata and fixup with new name in compacted table
dtexdata[numtexdata] = oldTexData[i];
dtexdata[numtexdata].nameStringTableID = nameIndex;
numtexdata++;
}
}
void CompactTexinfos()
{
Msg("Compacting texture/material tables...\n");
texinfomap_t *texinfoMap = new texinfomap_t[texinfo.Count()];
texdatamap_t *texdataMap = new texdatamap_t[numtexdata];
memset( texinfoMap, 0, sizeof(texinfoMap[0])*texinfo.Count() );
memset( texdataMap, 0, sizeof(texdataMap[0])*numtexdata );
int i;
// get texinfos referenced by faces
for ( i = 0; i < numfaces; i++ )
{
texinfoMap[dfaces[i].texinfo].refCount++;
}
// get texinfos referenced by brush sides
for ( i = 0; i < numbrushsides; i++ )
{
// not referenced by any visible geometry
Assert( dbrushsides[i].texinfo >= 0 );
if ( !texinfoMap[dbrushsides[i].texinfo].refCount )
{
dbrushsides[i].texinfo = FindMatchingBrushSideTexinfo( i, texinfoMap );
// didn't find anything suitable, go ahead and reference it
if ( !texinfoMap[dbrushsides[i].texinfo].refCount )
{
texinfoMap[dbrushsides[i].texinfo].refCount++;
}
}
}
// get texinfos referenced by overlays
for ( i = 0; i < g_nOverlayCount; i++ )
{
texinfoMap[g_Overlays[i].nTexInfo].refCount++;
}
for ( i = 0; i < numleafwaterdata; i++ )
{
if ( dleafwaterdata[i].surfaceTexInfoID >= 0 )
{
texinfoMap[dleafwaterdata[i].surfaceTexInfoID].refCount++;
}
}
for ( i = 0; i < *pNumworldlights; i++ )
{
if ( dworldlights[i].texinfo >= 0 )
{
texinfoMap[dworldlights[i].texinfo].refCount++;
}
}
for ( i = 0; i < g_nWaterOverlayCount; i++ )
{
if ( g_WaterOverlays[i].nTexInfo >= 0 )
{
texinfoMap[g_WaterOverlays[i].nTexInfo].refCount++;
}
}
// reference all used texdatas
for ( i = 0; i < texinfo.Count(); i++ )
{
if ( texinfoMap[i].refCount > 0 )
{
texdataMap[texinfo[i].texdata].refCount++;
}
}
int oldCount = texinfo.Count();
int oldTexdataCount = numtexdata;
int oldTexdataString = g_TexDataStringData.Count();
ComapctTexinfoArray( texinfoMap );
CompactTexdataArray( texdataMap );
for ( i = 0; i < texinfo.Count(); i++ )
{
int mapIndex = texdataMap[texinfo[i].texdata].outputIndex;
Assert( mapIndex >= 0 );
texinfo[i].texdata = mapIndex;
//const char *pName = TexDataStringTable_GetString( dtexdata[texinfo[i].texdata].nameStringTableID );
}
// remap texinfos on faces
for ( i = 0; i < numfaces; i++ )
{
Assert( texinfoMap[dfaces[i].texinfo].outputIndex >= 0 );
dfaces[i].texinfo = texinfoMap[dfaces[i].texinfo].outputIndex;
}
// remap texinfos on brushsides
for ( i = 0; i < numbrushsides; i++ )
{
Assert( texinfoMap[dbrushsides[i].texinfo].outputIndex >= 0 );
dbrushsides[i].texinfo = texinfoMap[dbrushsides[i].texinfo].outputIndex;
}
// remap texinfos on overlays
for ( i = 0; i < g_nOverlayCount; i++ )
{
g_Overlays[i].nTexInfo = texinfoMap[g_Overlays[i].nTexInfo].outputIndex;
}
// remap leaf water data
for ( i = 0; i < numleafwaterdata; i++ )
{
if ( dleafwaterdata[i].surfaceTexInfoID >= 0 )
{
dleafwaterdata[i].surfaceTexInfoID = texinfoMap[dleafwaterdata[i].surfaceTexInfoID].outputIndex;
}
}
// remap world lights
for ( i = 0; i < *pNumworldlights; i++ )
{
if ( dworldlights[i].texinfo >= 0 )
{
dworldlights[i].texinfo = texinfoMap[dworldlights[i].texinfo].outputIndex;
}
}
// remap water overlays
for ( i = 0; i < g_nWaterOverlayCount; i++ )
{
if ( g_WaterOverlays[i].nTexInfo >= 0 )
{
g_WaterOverlays[i].nTexInfo = texinfoMap[g_WaterOverlays[i].nTexInfo].outputIndex;
}
}
Msg("Reduced %d texinfos to %d\n", oldCount, texinfo.Count() );
Msg("Reduced %d texdatas to %d (%d bytes to %d)\n", oldTexdataCount, numtexdata, oldTexdataString, g_TexDataStringData.Count() );
delete[] texinfoMap;
delete[] texdataMap;
}
/*
============
WriteBSP
============
*/
void WriteBSP (node_t *headnode, face_t *pLeafFaceList )
{
int i;
int oldfaces;
int oldorigfaces;
c_nofaces = 0;
c_facenodes = 0;
qprintf ("--- WriteBSP ---\n");
oldfaces = numfaces;
oldorigfaces = numorigfaces;
GetEdge2_InitOptimizedList();
EmitLeafFaces( pLeafFaceList );
dmodels[nummodels].headnode = EmitDrawNode_r (headnode);
// Only emit area portals for the main world.
if( nummodels == 0 )
{
EmitAreaPortals (headnode);
}
//
// add all displacement faces for the particular model
//
for( i = 0; i < nummapdispinfo; i++ )
{
int entityIndex = GetDispInfoEntityNum( &mapdispinfo[i] );
if( entityIndex == entity_num )
{
EmitFaceVertexes( NULL, &mapdispinfo[i].face );
EmitFace( &mapdispinfo[i].face, FALSE );
}
}
EmitWaterVolumesForBSP( &dmodels[nummodels], headnode );
qprintf ("%5i nodes with faces\n", c_facenodes);
qprintf ("%5i nodes without faces\n", c_nofaces);
qprintf ("%5i faces\n", numfaces-oldfaces);
qprintf( "%5i original faces\n", numorigfaces-oldorigfaces );
}
//===========================================================
/*
============
SetModelNumbers
============
*/
void SetModelNumbers (void)
{
int i;
int models;
char value[10];
models = 1;
for (i=1 ; i<num_entities ; i++)
{
if (!entities[i].numbrushes)
continue;
if ( !IsFuncOccluder(i) )
{
sprintf (value, "*%i", models);
models++;
}
else
{
sprintf (value, "");
}
SetKeyValue (&entities[i], "model", value);
}
}
/*
============
SetLightStyles
============
*/
#define MAX_SWITCHED_LIGHTS 32
void SetLightStyles (void)
{
int stylenum;
char *t;
entity_t *e;
int i, j;
char value[10];
char lighttargets[MAX_SWITCHED_LIGHTS][64];
// any light that is controlled (has a targetname)
// must have a unique style number generated for it
stylenum = 0;
for (i=1 ; i<num_entities ; i++)
{
e = &entities[i];
t = ValueForKey (e, "classname");
if (Q_strncasecmp (t, "light", 5))
continue;
// This is not true for dynamic lights
if (!Q_strcasecmp (t, "light_dynamic"))
continue;
t = ValueForKey (e, "targetname");
if (!t[0])
continue;
// find this targetname
for (j=0 ; j<stylenum ; j++)
if (!strcmp (lighttargets[j], t))
break;
if (j == stylenum)
{
if (stylenum == MAX_SWITCHED_LIGHTS)
Error ("Too many switched lights (error at light %s), max = %d", t, MAX_SWITCHED_LIGHTS);
strcpy (lighttargets[j], t);
stylenum++;
}
sprintf (value, "%i", 32 + j);
char *pCurrentStyle = ValueForKey( e, "style" );
// the designer has set a default lightstyle as well as making the light switchable
if ( pCurrentStyle )
{
int oldStyle = atoi(pCurrentStyle);
if ( oldStyle != 0 )
{
// save off the default style so the game code can make a switchable copy of it
SetKeyValue( e, "defaultstyle", pCurrentStyle );
}
}
SetKeyValue (e, "style", value);
}
}
/*
============
EmitBrushes
============
*/
void EmitBrushes (void)
{
int i, j, bnum, s, x;
dbrush_t *db;
mapbrush_t *b;
dbrushside_t *cp;
Vector normal;
vec_t dist;
int planenum;
numbrushsides = 0;
numbrushes = g_MainMap->nummapbrushes;
for (bnum=0 ; bnum<g_MainMap->nummapbrushes ; bnum++)
{
b = &g_MainMap->mapbrushes[bnum];
db = &dbrushes[bnum];
db->contents = b->contents;
db->firstside = numbrushsides;
db->numsides = b->numsides;
for (j=0 ; j<b->numsides ; j++)
{
if (numbrushsides == MAX_MAP_BRUSHSIDES)
Error ("MAX_MAP_BRUSHSIDES");
cp = &dbrushsides[numbrushsides];
numbrushsides++;
cp->planenum = b->original_sides[j].planenum;
cp->texinfo = b->original_sides[j].texinfo;
if ( cp->texinfo == -1 )
{
cp->texinfo = g_MainMap->g_ClipTexinfo;
}
cp->bevel = b->original_sides[j].bevel;
}
// add any axis planes not contained in the brush to bevel off corners
for (x=0 ; x<3 ; x++)
for (s=-1 ; s<=1 ; s+=2)
{
// add the plane
VectorCopy (vec3_origin, normal);
normal[x] = s;
if (s == -1)
dist = -b->mins[x];
else
dist = b->maxs[x];
planenum = g_MainMap->FindFloatPlane (normal, dist);
for (i=0 ; i<b->numsides ; i++)
if (b->original_sides[i].planenum == planenum)
break;
if (i == b->numsides)
{
if (numbrushsides >= MAX_MAP_BRUSHSIDES)
Error ("MAX_MAP_BRUSHSIDES");
dbrushsides[numbrushsides].planenum = planenum;
dbrushsides[numbrushsides].texinfo =
dbrushsides[numbrushsides-1].texinfo;
numbrushsides++;
db->numsides++;
}
}
}
}
/*
==================
BeginBSPFile
==================
*/
void BeginBSPFile (void)
{
// these values may actually be initialized
// if the file existed when loaded, so clear them explicitly
nummodels = 0;
numfaces = 0;
numnodes = 0;
numbrushsides = 0;
numvertexes = 0;
numleaffaces = 0;
numleafbrushes = 0;
numsurfedges = 0;
// edge 0 is not used, because 0 can't be negated
numedges = 1;
// leave vertex 0 as an error
numvertexes = 1;
// leave leaf 0 as an error
numleafs = 1;
dleafs[0].contents = CONTENTS_SOLID;
// BUGBUG: This doesn't work!
#if 0
// make a default empty leaf for the tracing code
memset( &dleafs[1], 0, sizeof(dleafs[1]) );
dleafs[1].contents = CONTENTS_EMPTY;
#endif
}
// We can't calculate this properly until vvis (since we need vis to do this), so we set
// to zero everywhere by default.
static void ClearDistToClosestWater( void )
{
int i;
for( i = 0; i < numleafs; i++ )
{
g_LeafMinDistToWater[i] = 0;
}
}
void DiscoverMacroTextures()
{
CUtlDict<int,int> tempDict;
g_FaceMacroTextureInfos.SetSize( numfaces );
for ( int iFace=0; iFace < numfaces; iFace++ )
{
texinfo_t *pTexInfo = &texinfo[dfaces[iFace].texinfo];
if ( pTexInfo->texdata < 0 )
continue;
dtexdata_t *pTexData = &dtexdata[pTexInfo->texdata];
const char *pMaterialName = &g_TexDataStringData[ g_TexDataStringTable[pTexData->nameStringTableID] ];
MaterialSystemMaterial_t hMaterial = FindMaterial( pMaterialName, NULL, false );
const char *pMacroTextureName = GetMaterialVar( hMaterial, "$macro_texture" );
if ( pMacroTextureName )
{
if ( tempDict.Find( pMacroTextureName ) == tempDict.InvalidIndex() )
{
Msg( "-- DiscoverMacroTextures: %s\n", pMacroTextureName );
tempDict.Insert( pMacroTextureName, 0 );
}
int stringID = TexDataStringTable_AddOrFindString( pMacroTextureName );
g_FaceMacroTextureInfos[iFace].m_MacroTextureNameID = (unsigned short)stringID;
}
else
{
g_FaceMacroTextureInfos[iFace].m_MacroTextureNameID = 0xFFFF;
}
}
}
// Make sure that we have a water lod control entity if we have water in the map.
void EnsurePresenceOfWaterLODControlEntity( void )
{
extern bool g_bHasWater;
if( !g_bHasWater )
{
// Don't bother if there isn't any water in the map.
return;
}
for( int i=0; i < num_entities; i++ )
{
entity_t *e = &entities[i];
const char *pClassName = ValueForKey( e, "classname" );
if( !Q_stricmp( pClassName, "water_lod_control" ) )
{
// Found one!!!!
return;
}
}
// None found, add one.
Warning( "Water found with no water_lod_control entity, creating a default one.\n" );
entity_t *mapent = &entities[num_entities];
num_entities++;
memset(mapent, 0, sizeof(*mapent));
mapent->firstbrush = g_MainMap->nummapbrushes;
mapent->numbrushes = 0;
SetKeyValue( mapent, "classname", "water_lod_control" );
SetKeyValue( mapent, "cheapwaterstartdistance", "1000" );
SetKeyValue( mapent, "cheapwaterenddistance", "2000" );
}
/*
============
EndBSPFile
============
*/
void EndBSPFile (void)
{
// Mark noshadow faces.
MarkNoShadowFaces();
EmitBrushes ();
EmitPlanes ();
// stick flat normals at the verts
SaveVertexNormals();
// Figure out lightmap extents for all faces.
UpdateAllFaceLightmapExtents();
// Generate geometry and lightmap alpha for displacements.
EmitDispLMAlphaAndNeighbors();
// Emit overlay data.
Overlay_EmitOverlayFaces();
OverlayTransition_EmitOverlayFaces();
// phys collision needs dispinfo to operate (needs to generate phys collision for displacement surfs)
EmitPhysCollision();
// We can't calculate this properly until vvis (since we need vis to do this), so we set
// to zero everywhere by default.
ClearDistToClosestWater();
// Emit static props found in the .vmf file
EmitStaticProps();
// Place detail props found in .vmf and based on material properties
EmitDetailObjects();
// Compute bounds after creating disp info because we need to reference it
ComputeBoundsNoSkybox();
// Make sure that we have a water lod control eneity if we have water in the map.
EnsurePresenceOfWaterLODControlEntity();
// Doing this here because stuff about may filter out entities
UnparseEntities ();
// remove unused texinfos
CompactTexinfos();
// Figure out which faces want macro textures.
DiscoverMacroTextures();
char fileName[1024];
V_strncpy( fileName, source, sizeof( fileName ) );
V_DefaultExtension( fileName, ".bsp", sizeof( fileName ) );
Msg ("Writing %s\n", fileName);
WriteBSPFile (fileName);
}
/*
==================
BeginModel
==================
*/
int firstmodleaf;
void BeginModel (void)
{
dmodel_t *mod;
int start, end;
mapbrush_t *b;
int j;
entity_t *e;
Vector mins, maxs;
if (nummodels == MAX_MAP_MODELS)
Error ("Too many brush models in map, max = %d", MAX_MAP_MODELS);
mod = &dmodels[nummodels];
mod->firstface = numfaces;
firstmodleaf = numleafs;
firstmodeledge = numedges;
firstmodelface = numfaces;
//
// bound the brushes
//
e = &entities[entity_num];
start = e->firstbrush;
end = start + e->numbrushes;
ClearBounds (mins, maxs);
for (j=start ; j<end ; j++)
{
b = &g_MainMap->mapbrushes[j];
if (!b->numsides)
continue; // not a real brush (origin brush)
AddPointToBounds (b->mins, mins, maxs);
AddPointToBounds (b->maxs, mins, maxs);
}
VectorCopy (mins, mod->mins);
VectorCopy (maxs, mod->maxs);
}
/*
==================
EndModel
==================
*/
void EndModel (void)
{
dmodel_t *mod;
mod = &dmodels[nummodels];
mod->numfaces = numfaces - mod->firstface;
nummodels++;
}
//-----------------------------------------------------------------------------
// figure out which leaf a point is in
//-----------------------------------------------------------------------------
static int PointLeafnum_r (const Vector& p, int num)
{
float d;
while (num >= 0)
{
dnode_t* node = dnodes + num;
dplane_t* plane = dplanes + node->planenum;
if (plane->type < 3)
d = p[plane->type] - plane->dist;
else
d = DotProduct (plane->normal, p) - plane->dist;
if (d < 0)
num = node->children[1];
else
num = node->children[0];
}
return -1 - num;
}
int PointLeafnum ( dmodel_t* pModel, const Vector& p )
{
return PointLeafnum_r (p, pModel->headnode);
}
//-----------------------------------------------------------------------------
// Adds a noew to the bounding box
//-----------------------------------------------------------------------------
static void AddNodeToBounds(int node, CUtlVector<int>& skipAreas, Vector& mins, Vector& maxs)
{
// not a leaf
if (node >= 0)
{
AddNodeToBounds( dnodes[node].children[0], skipAreas, mins, maxs );
AddNodeToBounds( dnodes[node].children[1], skipAreas, mins, maxs );
}
else
{
int leaf = - 1 - node;
// Don't bother with solid leaves
if (dleafs[leaf].contents & CONTENTS_SOLID)
return;
// Skip 3D skybox
int i;
for ( i = skipAreas.Count(); --i >= 0; )
{
if (dleafs[leaf].area == skipAreas[i])
return;
}
unsigned int firstface = dleafs[leaf].firstleafface;
for ( i = 0; i < dleafs[leaf].numleaffaces; ++i )
{
unsigned int face = dleaffaces[ firstface + i ];
// Skip skyboxes + nodraw
texinfo_t& tex = texinfo[dfaces[face].texinfo];
if (tex.flags & (SURF_SKY | SURF_NODRAW))
continue;
unsigned int firstedge = dfaces[face].firstedge;
Assert( firstedge >= 0 );
for (int j = 0; j < dfaces[face].numedges; ++j)
{
Assert( firstedge+j < numsurfedges );
int edge = abs(dsurfedges[firstedge+j]);
dedge_t* pEdge = &dedges[edge];
Assert( pEdge->v[0] >= 0 );
Assert( pEdge->v[1] >= 0 );
AddPointToBounds (dvertexes[pEdge->v[0]].point, mins, maxs);
AddPointToBounds (dvertexes[pEdge->v[1]].point, mins, maxs);
}
}
}
}
//-----------------------------------------------------------------------------
// Check to see if a displacement lives in any leaves that are not
// in the 3d skybox
//-----------------------------------------------------------------------------
bool IsBoxInsideWorld( int node, CUtlVector<int> &skipAreas, const Vector &vecMins, const Vector &vecMaxs )
{
while( 1 )
{
// leaf
if (node < 0)
{
// get the leaf
int leaf = - 1 - node;
// Don't bother with solid leaves
if (dleafs[leaf].contents & CONTENTS_SOLID)
return false;
// Skip 3D skybox
int i;
for ( i = skipAreas.Count(); --i >= 0; )
{
if ( dleafs[leaf].area == skipAreas[i] )
return false;
}
return true;
}
//
// get displacement bounding box position relative to the node plane
//
dnode_t *pNode = &dnodes[ node ];
dplane_t *pPlane = &dplanes[ pNode->planenum ];
int sideResult = BrushBspBoxOnPlaneSide( vecMins, vecMaxs, pPlane );
// front side
if( sideResult == 1 )
{
node = pNode->children[0];
}
// back side
else if( sideResult == 2 )
{
node = pNode->children[1];
}
//split
else
{
if ( IsBoxInsideWorld( pNode->children[0], skipAreas, vecMins, vecMaxs ) )
return true;
node = pNode->children[1];
}
}
}
//-----------------------------------------------------------------------------
// Adds the displacement surfaces in the world to the bounds
//-----------------------------------------------------------------------------
void AddDispsToBounds( int nHeadNode, CUtlVector<int>& skipAreas, Vector &vecMins, Vector &vecMaxs )
{
Vector vecDispMins, vecDispMaxs;
// first determine how many displacement surfaces there will be per leaf
int i;
for ( i = 0; i < g_dispinfo.Count(); ++i )
{
ComputeDispInfoBounds( i, vecDispMins, vecDispMaxs );
if ( IsBoxInsideWorld( nHeadNode, skipAreas, vecDispMins, vecDispMaxs ) )
{
AddPointToBounds( vecDispMins, vecMins, vecMaxs );
AddPointToBounds( vecDispMaxs, vecMins, vecMaxs );
}
}
}
//-----------------------------------------------------------------------------
// Compute the bounding box, excluding 3D skybox + skybox, add it to keyvalues
//-----------------------------------------------------------------------------
void ComputeBoundsNoSkybox( )
{
// Iterate over all world leaves, skip those which are part of skybox
Vector mins, maxs;
ClearBounds (mins, maxs);
AddNodeToBounds( dmodels[0].headnode, g_SkyAreas, mins, maxs );
AddDispsToBounds( dmodels[0].headnode, g_SkyAreas, mins, maxs );
// Add the bounds to the worldspawn data
for (int i = 0; i < num_entities; ++i)
{
char* pEntity = ValueForKey(&entities[i], "classname");
if (!strcmp(pEntity, "worldspawn"))
{
char string[32];
sprintf (string, "%i %i %i", (int)mins[0], (int)mins[1], (int)mins[2]);
SetKeyValue (&entities[i], "world_mins", string);
sprintf (string, "%i %i %i", (int)maxs[0], (int)maxs[1], (int)maxs[2]);
SetKeyValue (&entities[i], "world_maxs", string);
break;
}
}
}