/*
====================
CM_AdjustAreaPortalState
====================
*/
void CM_AdjustAreaPortalState(int area1, int area2, qboolean open)
{
if (area1 < 0 || area2 < 0)
{
return;
}
if (area1 >= cm.numAreas || area2 >= cm.numAreas)
{
Com_Error(ERR_DROP, "CM_ChangeAreaPortalState: bad area number");
}
if (open)
{
cm.areaPortals[area1 * cm.numAreas + area2]++;
cm.areaPortals[area2 * cm.numAreas + area1]++;
}
else if (cm.areaPortals[area2 * cm.numAreas + area1]) // Ridah, fixes loadgame issue
{
cm.areaPortals[area1 * cm.numAreas + area2]--;
cm.areaPortals[area2 * cm.numAreas + area1]--;
if (cm.areaPortals[area2 * cm.numAreas + area1] < 0)
{
Com_Error(ERR_DROP, "CM_AdjustAreaPortalState: negative reference count");
}
}
CM_FloodAreaConnections();
}
/*
* CM_ReadPortalState
* Reads the portal state from a savegame file
* and recalculates the area connections
*/
void CM_ReadPortalState( cmodel_state_t *cms, int file )
{
int i;
FS_Read( &cms->map_areaportals, cms->numareas * cms->numareas * sizeof( *cms->map_areaportals ), file );
for( i = 0; i < cms->numareas * cms->numareas; i++ )
cms->map_areaportals[i] = LittleLong( cms->map_areaportals[i] );
CM_FloodAreaConnections( cms );
}
/*
* CM_ReadAreaBits
*/
void CM_ReadAreaBits( cmodel_state_t *cms, qbyte *buffer )
{
int i, j;
int rowsize;
memset( cms->map_areaportals, 0, cms->numareas * cms->numareas * sizeof( *cms->map_areaportals ) );
rowsize = CM_AreaRowSize( cms );
for( i = 0; i < cms->numareas; i++ )
{
qbyte *row;
row = buffer + i * rowsize;
for( j = 0; j < cms->numareas; j++ )
{
if( row[j>>3] & (1<<(j&7)) )
cms->map_areaportals[i * cms->numareas + j] = 1;
}
}
CM_FloodAreaConnections( cms );
}
/*
* CM_SetAreaPortalState
*/
void CM_SetAreaPortalState( cmodel_state_t *cms, int area1, int area2, qboolean open )
{
int row1, row2;
if( area1 == area2 )
return;
if( area1 < 0 || area2 < 0 )
return;
row1 = area1 * cms->numareas + area2;
row2 = area2 * cms->numareas + area1;
if( open ) {
cms->map_areaportals[row1]++;
cms->map_areaportals[row2]++;
} else {
if( cms->map_areaportals[row1] > 0 )
cms->map_areaportals[row1]--;
if( cms->map_areaportals[row2] > 0 )
cms->map_areaportals[row2]--;
}
CM_FloodAreaConnections( cms );
}
/*
* CM_LoadMap
* Loads in the map and all submodels
*
* for spawning a server with no map at all, call like this:
* CM_LoadMap( "", qfalse, &checksum ); // no real map
*/
cmodel_t *CM_LoadMap( cmodel_state_t *cms, const char *name, qboolean clientload, unsigned *checksum )
{
int length;
unsigned *buf;
char *header;
const modelFormatDescr_t *descr;
bspFormatDesc_t *bspFormat = NULL;
assert( cms );
assert( name && strlen( name ) < MAX_CONFIGSTRING_CHARS );
assert( checksum );
cms->map_clientload = clientload;
if( !strcmp( cms->map_name, name ) && ( clientload || !Cvar_Value( "flushmap" ) ) )
{
*checksum = cms->checksum;
if( !clientload )
{
memset( cms->map_areaportals, 0, cms->numareas * cms->numareas * sizeof( *cms->map_areaportals ) );
CM_FloodAreaConnections( cms );
}
return cms->map_cmodels; // still have the right version
}
CM_Clear( cms );
if( !name || !name[0] )
{
cms->numleafs = 1;
cms->numcmodels = 2;
*checksum = 0;
return cms->map_cmodels; // cinematic servers won't have anything at all
}
//
// load the file
//
length = FS_LoadFile( name, ( void ** )&buf, NULL, 0 );
if( !buf )
Com_Error( ERR_DROP, "Couldn't load %s", name );
cms->checksum = Com_MD5Digest32( ( const qbyte * )buf, length );
*checksum = cms->checksum;
// call the apropriate loader
descr = Q_FindFormatDescriptor( cm_supportedformats, ( const qbyte * )buf, (const bspFormatDesc_t **)&bspFormat );
if( !descr )
Com_Error( ERR_DROP, "CM_LoadMap: unknown fileid for %s", name );
if( !bspFormat )
Com_Error( ERR_DROP, "CM_LoadMap: %s: unknown bsp format" );
// copy header into temp variable to be saveed in a cvar
header = Mem_TempMalloc( descr->headerLen + 1 );
memcpy( header, buf, descr->headerLen );
header[descr->headerLen] = '\0';
// store map format description in cvars
Cvar_ForceSet( "cm_mapHeader", header );
Cvar_ForceSet( "cm_mapVersion", va( "%i", LittleLong( *((int *)((qbyte *)buf + descr->headerLen)) ) ) );
Mem_TempFree( header );
descr->loader( cms, NULL, buf, bspFormat );
CM_InitBoxHull( cms );
CM_InitOctagonHull( cms );
if( cms->numareas )
{
cms->map_areas = Mem_Alloc( cms->mempool, cms->numareas * sizeof( *cms->map_areas ) );
cms->map_areaportals = Mem_Alloc( cms->mempool, cms->numareas * cms->numareas * sizeof( *cms->map_areaportals ) );
memset( cms->map_areaportals, 0, cms->numareas * cms->numareas * sizeof( *cms->map_areaportals ) );
CM_FloodAreaConnections( cms );
}
memset( cms->nullrow, 255, MAX_CM_LEAFS / 8 );
Q_strncpyz( cms->map_name, name, sizeof( cms->map_name ) );
return cms->map_cmodels;
}