Serious-Engine/Sources/Engine/Brushes/BrushArchive.cpp

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2016-03-11 14:57:17 +01:00
/* Copyright (c) 2002-2012 Croteam Ltd. All rights reserved. */
#include "stdh.h"
#include <Engine/Brushes/Brush.h>
#include <Engine/Brushes/BrushArchive.h>
#include <Engine/World/WorldEditingProfile.h>
#include <Engine/World/World.h>
#include <Engine/Math/Float.h>
#include <Engine/Base/ProgressHook.h>
#include <Engine/Base/Stream.h>
#include <Engine/Entities/Entity.h>
#include <Engine/Base/ListIterator.inl>
#include <Engine/Templates/BSP.h>
#include <Engine/Templates/BSP_internal.h>
#include <Engine/Templates/DynamicArray.cpp>
#include <Engine/Templates/StaticArray.cpp>
template CDynamicArray<CBrush3D>;
extern BOOL _bPortalSectorLinksPreLoaded = FALSE;
extern BOOL _bEntitySectorLinksPreLoaded = FALSE;
/*
* Calculate bounding boxes in all brushes.
*/
void CBrushArchive::CalculateBoundingBoxes(void)
{
_pfWorldEditingProfile.StartTimer(CWorldEditingProfile::PTI_CALCULATEBOUNDINGBOXES);
// for each of the brushes
FOREACHINDYNAMICARRAY(ba_abrBrushes, CBrush3D, itbr) {
// if the brush has no entity
if (itbr->br_penEntity==NULL) {
// skip it
continue;
}
// calculate its boxes
itbr->CalculateBoundingBoxes();
}
_pfWorldEditingProfile.StopTimer(CWorldEditingProfile::PTI_CALCULATEBOUNDINGBOXES);
}
/* Make indices for all brush elements. */
void CBrushArchive::MakeIndices(void)
{
// NOTE: Mips and brushes don't have indices, because it is not needed yet.
// Polygon and sector indices are needed for loading/saving of portal-sector links.
INDEX ctBrushes=0;
INDEX ctMips=0;
INDEX ctSectors=0;
INDEX ctPolygons=0;
// for each brush
FOREACHINDYNAMICARRAY(ba_abrBrushes, CBrush3D, itbr) {
// for each mip in the brush
FOREACHINLIST(CBrushMip, bm_lnInBrush, itbr->br_lhBrushMips, itbm) {
// for each sector in the brush mip
FOREACHINDYNAMICARRAY(itbm->bm_abscSectors, CBrushSector, itbsc) {
// for each polygon in the sector
FOREACHINSTATICARRAY(itbsc->bsc_abpoPolygons, CBrushPolygon, itbpo) {
itbpo->bpo_iInWorld = ctPolygons;
ctPolygons++;
}
itbsc->bsc_iInWorld = ctSectors;
ctSectors++;
}
ctMips++;
}
ctBrushes++;
}
// make arrays of pointers to sectors and polygons
ba_apbpo.Clear();
ba_apbpo.New(ctPolygons);
ba_apbsc.Clear();
ba_apbsc.New(ctSectors);
{FOREACHINDYNAMICARRAY(ba_abrBrushes, CBrush3D, itbr) {
FOREACHINLIST(CBrushMip, bm_lnInBrush, itbr->br_lhBrushMips, itbm) {
FOREACHINDYNAMICARRAY(itbm->bm_abscSectors, CBrushSector, itbsc) {
ba_apbsc[itbsc->bsc_iInWorld] = itbsc;
FOREACHINSTATICARRAY(itbsc->bsc_abpoPolygons, CBrushPolygon, itbpo) {
ba_apbpo[itbpo->bpo_iInWorld] = itbpo;
}
}
}
}}
}
#define DISTANCE_EPSILON 0.1f
/* Create links between portals and sectors on their other side. */
void CBrushArchive::LinkPortalsAndSectors(void)
{
_pfWorldEditingProfile.StartTimer(CWorldEditingProfile::PTI_LINKPORTALSANDSECTORS);
ASSERT(GetFPUPrecision()==FPT_53BIT);
// for each of the zoning brushes
FOREACHINDYNAMICARRAY(ba_abrBrushes, CBrush3D, itbr1) {
if (itbr1->br_penEntity==NULL || !(itbr1->br_penEntity->en_ulFlags&ENF_ZONING)) {
continue;
}
// for each mip
FOREACHINLIST(CBrushMip, bm_lnInBrush, itbr1->br_lhBrushMips, itbm1) {
// for each sector in the brush mip
FOREACHINDYNAMICARRAY(itbm1->bm_abscSectors, CBrushSector, itbsc1) {
// for each of the zoning brushes
FOREACHINDYNAMICARRAY(ba_abrBrushes, CBrush3D, itbr2) {
if (itbr2->br_penEntity==NULL || !(itbr2->br_penEntity->en_ulFlags&ENF_ZONING)) {
continue;
}
// for each mip that might have contact with the sector
FOREACHINLIST(CBrushMip, bm_lnInBrush, itbr2->br_lhBrushMips, itbm2) {
if (!itbm2->bm_boxBoundingBox.HasContactWith(itbsc1->bsc_boxBoundingBox, DISTANCE_EPSILON)) {
continue;
}
// for each sector in the brush mip that might have contact, except current one
FOREACHINDYNAMICARRAY(itbm2->bm_abscSectors, CBrushSector, itbsc2) {
if (&*itbsc1==&*itbsc2) {
continue;
}
if (!itbsc2->bsc_boxBoundingBox.HasContactWith(itbsc1->bsc_boxBoundingBox, DISTANCE_EPSILON)) {
continue;
}
// for all portals in this sector that might have contact
FOREACHINSTATICARRAY(itbsc2->bsc_abpoPolygons, CBrushPolygon, itbpo2) {
if (!(itbpo2->bpo_ulFlags&(BPOF_PORTAL|BPOF_PASSABLE))) {
continue;
}
if (!itbpo2->bpo_boxBoundingBox.HasContactWith(itbsc1->bsc_boxBoundingBox, DISTANCE_EPSILON)) {
continue;
}
// create a BSP polygon from the brush polygon
CBrushPolygon &brpo2 = *itbpo2;
BSPPolygon<DOUBLE, 3> bspo2;
brpo2.CreateBSPPolygonNonPrecise(bspo2);
// split the polygon with the BSP of the sector
DOUBLEbspcutter3D bcCutter(bspo2, *itbsc1->bsc_bspBSPTree.bt_pbnRoot);
// if anything remains on the border looking outside
if (bcCutter.bc_abedInside.Count()>0
||bcCutter.bc_abedBorderInside.Count()>0
||bcCutter.bc_abedBorderOutside.Count()>0) {
// relate the sector to the portal
AddRelationPair(
itbpo2->bpo_rsOtherSideSectors,
itbsc1->bsc_rdOtherSidePortals);
}
}
}
}
}
}
}
}
_pfWorldEditingProfile.StopTimer(CWorldEditingProfile::PTI_LINKPORTALSANDSECTORS);
}
// remove shadow layers without valid light source in all brushes
void CBrushArchive::RemoveDummyLayers(void)
{
// for each brush
FOREACHINDYNAMICARRAY(ba_abrBrushes, CBrush3D, itbr) { // for each mip
if( itbr->br_penEntity==NULL) continue; // skip brush without entity
FOREACHINLIST(CBrushMip, bm_lnInBrush, itbr->br_lhBrushMips, itbm) { // for each sector in the brush mip
FOREACHINDYNAMICARRAY(itbm->bm_abscSectors, CBrushSector, itbsc) { // for each polygon in the sector
FOREACHINSTATICARRAY(itbsc->bsc_abpoPolygons, CBrushPolygon, itbpo) {
CBrushPolygon &bpo = *itbpo;
bpo.bpo_smShadowMap.RemoveDummyLayers(); // remove shadow layers without valid light source
}
}
}
}
}
// cache all shadowmaps
void CBrushArchive::CacheAllShadowmaps(void)
{
// count all shadowmaps
INDEX ctShadowMaps=0;
{FOREACHINDYNAMICARRAY( ba_abrBrushes, CBrush3D, itbr) { // for each mip
if( itbr->br_penEntity==NULL) continue; // skip brush without entity
FOREACHINLIST( CBrushMip, bm_lnInBrush, itbr->br_lhBrushMips, itbm) { // for each sector in the brush mip
FOREACHINDYNAMICARRAY( itbm->bm_abscSectors, CBrushSector, itbsc) { // for each polygon in the sector
FOREACHINSTATICARRAY( itbsc->bsc_abpoPolygons, CBrushPolygon, itbpo) {
if( !itbpo->bpo_smShadowMap.bsm_lhLayers.IsEmpty()) ctShadowMaps++; // count shadowmap if the one exist
}
}
}
}}
try {
SetProgressDescription( TRANS("caching shadowmaps"));
CallProgressHook_t(0.0f);
// for each brush
INDEX iCurrentShadowMap=0;
{FOREACHINDYNAMICARRAY( ba_abrBrushes, CBrush3D, itbr) { // for each mip
if( itbr->br_penEntity==NULL) continue; // skip brush without entity
FOREACHINLIST( CBrushMip, bm_lnInBrush, itbr->br_lhBrushMips, itbm) { // for each sector in the brush mip
FOREACHINDYNAMICARRAY( itbm->bm_abscSectors, CBrushSector, itbsc) { // for each polygon in the sector
FOREACHINSTATICARRAY( itbsc->bsc_abpoPolygons, CBrushPolygon, itbpo) {
// cache shadowmap if the one exist
CBrushShadowMap &bsm = itbpo->bpo_smShadowMap;
if( bsm.bsm_lhLayers.IsEmpty()) continue;
bsm.CheckLayersUpToDate();
bsm.Prepare();
bsm.SetAsCurrent();
iCurrentShadowMap++;
CallProgressHook_t( (FLOAT)iCurrentShadowMap/ctShadowMaps);
}
}
}
}}
// all done
CallProgressHook_t(1.0f);
}
catch( char*) { NOTHING; }
}
void CBrushArchive::ReadPortalSectorLinks_t( CTStream &strm) // throw char *
{
// links are not ok if they fail loading
_bPortalSectorLinksPreLoaded = FALSE;
_pfWorldEditingProfile.StartTimer(CWorldEditingProfile::PTI_READPORTALSECTORLINKS);
// first make indices for all sectors and polygons
MakeIndices();
// if the chunk is not there
if (!(strm.PeekID_t()==CChunkID("PSLS"))) { // portal-sector links
// do nothing;
_pfWorldEditingProfile.StopTimer(CWorldEditingProfile::PTI_READPORTALSECTORLINKS);
return;
}
// read the version
strm.ExpectID_t("PSLS"); // portal-sector links
INDEX iVersion;
strm>>iVersion;
ASSERT(iVersion==1);
// read chunk size
SLONG slChunkSizePos = strm.GetPos_t();
SLONG slChunkSize;
strm>>slChunkSize;
// repeat
FOREVER {
// read sector index
INDEX iSector;
strm>>iSector;
// if end marker
if (iSector==-1) {
// stop loading
break;
}
// get the sector
CBrushSector *pbsc = ba_apbsc[iSector];
ASSERT(pbsc->bsc_iInWorld==iSector);
// read number of links
INDEX ctLinks;
strm>>ctLinks;
// for each link
for(INDEX iLink=0; iLink<ctLinks; iLink++) {
// read polygon index
INDEX iPolygon;
strm>>iPolygon;
CBrushPolygon *pbpo = ba_apbpo[iPolygon];
ASSERT(pbpo->bpo_iInWorld==iPolygon);
// relate the sector to the portal
AddRelationPair(
pbpo->bpo_rsOtherSideSectors,
pbsc->bsc_rdOtherSidePortals);
}
pbsc->bsc_ulTempFlags|=BSCTF_PRELOADEDLINKS;
}
// check chunk size
ASSERT(strm.GetPos_t()-slChunkSizePos-sizeof(INDEX)==slChunkSize);
// check end id
strm.ExpectID_t("PSLE"); // portal-sector links end
// mark that links are ok
_bPortalSectorLinksPreLoaded = TRUE;
_pfWorldEditingProfile.StopTimer(CWorldEditingProfile::PTI_READPORTALSECTORLINKS);
}
void CBrushArchive::ReadEntitySectorLinks_t( CTStream &strm) // throw char *
{
// links are not ok if they fail loading
_bEntitySectorLinksPreLoaded = FALSE;
_pfWorldEditingProfile.StartTimer(CWorldEditingProfile::PTI_READPORTALSECTORLINKS);
// first make indices for all sectors and polygons
MakeIndices();
// if the chunk is not there
if (!(strm.PeekID_t()==CChunkID("ESL2"))) { // entity-sector links v2
// do nothing;
_pfWorldEditingProfile.StopTimer(CWorldEditingProfile::PTI_READPORTALSECTORLINKS);
return;
}
// read the version
strm.ExpectID_t("ESL2"); // entity-sector links v2
INDEX iVersion;
strm>>iVersion;
ASSERT(iVersion==1);
// read chunk size
SLONG slChunkSizePos = strm.GetPos_t();
SLONG slChunkSize;
strm>>slChunkSize;
// repeat
FOREVER {
// read sector index
INDEX iSector;
strm>>iSector;
// if end marker
if (iSector==-1) {
// stop loading
break;
}
// get the sector
CBrushSector *pbsc = ba_apbsc[iSector];
ASSERT(pbsc->bsc_iInWorld==iSector);
// read number of links
INDEX ctLinks;
strm>>ctLinks;
// for each link
for(INDEX iLink=0; iLink<ctLinks; iLink++) {
// read entity index
INDEX iEntity;
strm>>iEntity;
CEntity *pen = ba_pwoWorld->EntityFromID(iEntity);
// relate the sector to the entity
AddRelationPair(pbsc->bsc_rsEntities, pen->en_rdSectors);
}
}
// check chunk size
ASSERT(strm.GetPos_t()-slChunkSizePos-sizeof(INDEX)==slChunkSize);
// check end id
strm.ExpectID_t("ESLE"); // entity-sector links end
// mark that links are ok
_bEntitySectorLinksPreLoaded = TRUE;
_pfWorldEditingProfile.StopTimer(CWorldEditingProfile::PTI_READPORTALSECTORLINKS);
}
void CBrushArchive::WritePortalSectorLinks_t( CTStream &strm) // throw char *
{
// first make indices for all sectors and polygons
MakeIndices();
// write chunk id and current version
strm.WriteID_t("PSLS"); // portal-sector links
strm<<INDEX(1);
// leave room for chunk size
SLONG slChunkSizePos = strm.GetPos_t();
strm<<SLONG(0);
// for each sector
{FOREACHINDYNAMICARRAY(ba_abrBrushes, CBrush3D, itbr) {
FOREACHINLIST(CBrushMip, bm_lnInBrush, itbr->br_lhBrushMips, itbm) {
FOREACHINDYNAMICARRAY(itbm->bm_abscSectors, CBrushSector, itbsc) {
CBrushSector *pbsc = itbsc;
// get number of portal links that it has
INDEX ctLinks = pbsc->bsc_rdOtherSidePortals.Count();
// if it has no links
if (ctLinks==0) {
// skip it
continue;
}
// write sector index and number of links
strm<<pbsc->bsc_iInWorld<<ctLinks;
// for each link
{FOREACHSRCOFDST(pbsc->bsc_rdOtherSidePortals, CBrushPolygon, bpo_rsOtherSideSectors, pbpo)
// write the polygon index
strm<<pbpo->bpo_iInWorld;
ENDFOR}
}
}
}}
// write sector index -1 as end marker
strm<<INDEX(-1);
// write back the chunk size
SLONG slEndPos = strm.GetPos_t();
strm.SetPos_t(slChunkSizePos);
strm<<SLONG(slEndPos-slChunkSizePos-sizeof(INDEX));
strm.SetPos_t(slEndPos);
// write end id for checking
strm.WriteID_t("PSLE"); // portal-sector links end
}
void CBrushArchive::WriteEntitySectorLinks_t( CTStream &strm) // throw char *
{
// first make indices for all sectors and polygons
MakeIndices();
// write chunk id and current version
strm.WriteID_t("ESL2"); // entity-sector links v2
strm<<INDEX(1);
// leave room for chunk size
SLONG slChunkSizePos = strm.GetPos_t();
strm<<SLONG(0);
// for each sector
{FOREACHINDYNAMICARRAY(ba_abrBrushes, CBrush3D, itbr) {
FOREACHINLIST(CBrushMip, bm_lnInBrush, itbr->br_lhBrushMips, itbm) {
FOREACHINDYNAMICARRAY(itbm->bm_abscSectors, CBrushSector, itbsc) {
CBrushSector *pbsc = itbsc;
// get number of entity links that it has
INDEX ctLinks = pbsc->bsc_rsEntities.Count();
// if it has no links
if (ctLinks==0) {
// skip it
continue;
}
// write sector index and number of links
strm<<pbsc->bsc_iInWorld<<ctLinks;
// for each link
{FOREACHDSTOFSRC(pbsc->bsc_rsEntities, CEntity, en_rdSectors, pen)
// write the entity index
strm<<pen->en_ulID;
ENDFOR}
}
}
}}
// write sector index -1 as end marker
strm<<INDEX(-1);
// write back the chunk size
SLONG slEndPos = strm.GetPos_t();
strm.SetPos_t(slChunkSizePos);
strm<<SLONG(slEndPos-slChunkSizePos-sizeof(INDEX));
strm.SetPos_t(slEndPos);
// write end id for checking
strm.WriteID_t("ESLE"); // entity-sector links end
}
/*
* Read from stream.
*/
void CBrushArchive::Read_t( CTStream *istrFile) // throw char *
{
istrFile->ExpectID_t("BRAR"); // brush archive
INDEX ctBrushes;
// read number of brushes
(*istrFile)>>ctBrushes;
// if there are some brushes
if (ctBrushes!=0) {
// create that much brushes
CBrush3D *abrBrushes = ba_abrBrushes.New(ctBrushes);
// for each of the new brushes
for (INDEX iBrush=0; iBrush<ctBrushes; iBrush++) {
// read it from stream
CallProgressHook_t(FLOAT(iBrush)/ctBrushes);
abrBrushes[iBrush].Read_t(istrFile);
}
}
// read links if possible
ReadPortalSectorLinks_t(*istrFile);
istrFile->ExpectID_t("EOAR"); // end of archive
}
/*
* Write to stream.
*/
void CBrushArchive::Write_t( CTStream *ostrFile) // throw char *
{
ostrFile->WriteID_t("BRAR"); // brush archive
// write the number of brushes
(*ostrFile)<<ba_abrBrushes.Count();
// for each of the brushes
FOREACHINDYNAMICARRAY(ba_abrBrushes, CBrush3D, itbr) {
// write it to stream
itbr->Write_t(ostrFile);
}
// write links
WritePortalSectorLinks_t(*ostrFile);
ostrFile->WriteID_t("EOAR"); // end of archive
}