aas_file.c

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/*
===========================================================================
Copyright (C) 1999-2005 Id Software, Inc.

This file is part of Quake III Arena source code.

Quake III Arena 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 2 of the License,
or (at your option) any later version.

Quake III Arena 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 Foobar; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
===========================================================================
*/

#include "qbsp.h"
#include "../botlib/aasfile.h"
#include "aas_file.h"
#include "aas_store.h"
#include "aas_create.h"

#define AAS_Error           Error

//===========================================================================
//
// Parameter:               -
// Returns:                 -
// Changes Globals:     -
//===========================================================================
void AAS_SwapAASData(void)
{
    int i, j;
    //bounding boxes
    for (i = 0; i < aasworld.numbboxes; i++)
    {
        aasworld.bboxes[i].presencetype = LittleLong(aasworld.bboxes[i].presencetype);
        aasworld.bboxes[i].flags = LittleLong(aasworld.bboxes[i].flags);
        for (j = 0; j < 3; j++)
        {
            aasworld.bboxes[i].mins[j] = LittleLong(aasworld.bboxes[i].mins[j]);
            aasworld.bboxes[i].maxs[j] = LittleLong(aasworld.bboxes[i].maxs[j]);
        } //end for
    } //end for
    //vertexes
    for (i = 0; i < aasworld.numvertexes; i++)
    {
        for (j = 0; j < 3; j++)
            aasworld.vertexes[i][j] = LittleFloat(aasworld.vertexes[i][j]);
    } //end for
    //planes
    for (i = 0; i < aasworld.numplanes; i++)
    {
        for (j = 0; j < 3; j++)
            aasworld.planes[i].normal[j] = LittleFloat(aasworld.planes[i].normal[j]);
        aasworld.planes[i].dist = LittleFloat(aasworld.planes[i].dist);
        aasworld.planes[i].type = LittleLong(aasworld.planes[i].type);
    } //end for
    //edges
    for (i = 0; i < aasworld.numedges; i++)
    {
        aasworld.edges[i].v[0] = LittleLong(aasworld.edges[i].v[0]);
        aasworld.edges[i].v[1] = LittleLong(aasworld.edges[i].v[1]);
    } //end for
    //edgeindex
    for (i = 0; i < aasworld.edgeindexsize; i++)
    {
        aasworld.edgeindex[i] = LittleLong(aasworld.edgeindex[i]);
    } //end for
    //faces
    for (i = 0; i < aasworld.numfaces; i++)
    {
        aasworld.faces[i].planenum = LittleLong(aasworld.faces[i].planenum);
        aasworld.faces[i].faceflags = LittleLong(aasworld.faces[i].faceflags);
        aasworld.faces[i].numedges = LittleLong(aasworld.faces[i].numedges);
        aasworld.faces[i].firstedge = LittleLong(aasworld.faces[i].firstedge);
        aasworld.faces[i].frontarea = LittleLong(aasworld.faces[i].frontarea);
        aasworld.faces[i].backarea = LittleLong(aasworld.faces[i].backarea);
    } //end for
    //face index
    for (i = 0; i < aasworld.faceindexsize; i++)
    {
        aasworld.faceindex[i] = LittleLong(aasworld.faceindex[i]);
    } //end for
    //convex areas
    for (i = 0; i < aasworld.numareas; i++)
    {
        aasworld.areas[i].areanum = LittleLong(aasworld.areas[i].areanum);
        aasworld.areas[i].numfaces = LittleLong(aasworld.areas[i].numfaces);
        aasworld.areas[i].firstface = LittleLong(aasworld.areas[i].firstface);
        for (j = 0; j < 3; j++)
        {
            aasworld.areas[i].mins[j] = LittleFloat(aasworld.areas[i].mins[j]);
            aasworld.areas[i].maxs[j] = LittleFloat(aasworld.areas[i].maxs[j]);
            aasworld.areas[i].center[j] = LittleFloat(aasworld.areas[i].center[j]);
        } //end for
    } //end for
    //area settings
    for (i = 0; i < aasworld.numareasettings; i++)
    {
        aasworld.areasettings[i].contents = LittleLong(aasworld.areasettings[i].contents);
        aasworld.areasettings[i].areaflags = LittleLong(aasworld.areasettings[i].areaflags);
        aasworld.areasettings[i].presencetype = LittleLong(aasworld.areasettings[i].presencetype);
        aasworld.areasettings[i].cluster = LittleLong(aasworld.areasettings[i].cluster);
        aasworld.areasettings[i].clusterareanum = LittleLong(aasworld.areasettings[i].clusterareanum);
        aasworld.areasettings[i].numreachableareas = LittleLong(aasworld.areasettings[i].numreachableareas);
        aasworld.areasettings[i].firstreachablearea = LittleLong(aasworld.areasettings[i].firstreachablearea);
    } //end for
    //area reachability
    for (i = 0; i < aasworld.reachabilitysize; i++)
    {
        aasworld.reachability[i].areanum = LittleLong(aasworld.reachability[i].areanum);
        aasworld.reachability[i].facenum = LittleLong(aasworld.reachability[i].facenum);
        aasworld.reachability[i].edgenum = LittleLong(aasworld.reachability[i].edgenum);
        for (j = 0; j < 3; j++)
        {
            aasworld.reachability[i].start[j] = LittleFloat(aasworld.reachability[i].start[j]);
            aasworld.reachability[i].end[j] = LittleFloat(aasworld.reachability[i].end[j]);
        } //end for
        aasworld.reachability[i].traveltype = LittleLong(aasworld.reachability[i].traveltype);
        aasworld.reachability[i].traveltime = LittleShort(aasworld.reachability[i].traveltime);
    } //end for
    //nodes
    for (i = 0; i < aasworld.numnodes; i++)
    {
        aasworld.nodes[i].planenum = LittleLong(aasworld.nodes[i].planenum);
        aasworld.nodes[i].children[0] = LittleLong(aasworld.nodes[i].children[0]);
        aasworld.nodes[i].children[1] = LittleLong(aasworld.nodes[i].children[1]);
    } //end for
    //cluster portals
    for (i = 0; i < aasworld.numportals; i++)
    {
        aasworld.portals[i].areanum = LittleLong(aasworld.portals[i].areanum);
        aasworld.portals[i].frontcluster = LittleLong(aasworld.portals[i].frontcluster);
        aasworld.portals[i].backcluster = LittleLong(aasworld.portals[i].backcluster);
        aasworld.portals[i].clusterareanum[0] = LittleLong(aasworld.portals[i].clusterareanum[0]);
        aasworld.portals[i].clusterareanum[1] = LittleLong(aasworld.portals[i].clusterareanum[1]);
    } //end for
    //cluster portal index
    for (i = 0; i < aasworld.portalindexsize; i++)
    {
        aasworld.portalindex[i] = LittleLong(aasworld.portalindex[i]);
    } //end for
    //cluster
    for (i = 0; i < aasworld.numclusters; i++)
    {
        aasworld.clusters[i].numareas = LittleLong(aasworld.clusters[i].numareas);
        aasworld.clusters[i].numportals = LittleLong(aasworld.clusters[i].numportals);
        aasworld.clusters[i].firstportal = LittleLong(aasworld.clusters[i].firstportal);
    } //end for
} //end of the function AAS_SwapAASData
//===========================================================================
// dump the current loaded aas file
//
// Parameter:               -
// Returns:                 -
// Changes Globals:     -
//===========================================================================
void AAS_DumpAASData(void)
{
    /*
    if (aasworld.vertexes) FreeMemory(aasworld.vertexes);
    aasworld.vertexes = NULL;
    if (aasworld.planes) FreeMemory(aasworld.planes);
    aasworld.planes = NULL;
    if (aasworld.edges) FreeMemory(aasworld.edges);
    aasworld.edges = NULL;
    if (aasworld.edgeindex) FreeMemory(aasworld.edgeindex);
    aasworld.edgeindex = NULL;
    if (aasworld.faces) FreeMemory(aasworld.faces);
    aasworld.faces = NULL;
    if (aasworld.faceindex) FreeMemory(aasworld.faceindex);
    aasworld.faceindex = NULL;
    if (aasworld.areas) FreeMemory(aasworld.areas);
    aasworld.areas = NULL;
    if (aasworld.areasettings) FreeMemory(aasworld.areasettings);
    aasworld.areasettings = NULL;
    if (aasworld.reachability) FreeMemory(aasworld.reachability);
    aasworld.reachability = NULL;
    */
    aasworld.loaded = false;
} //end of the function AAS_DumpAASData
//===========================================================================
// allocate memory and read a lump of a AAS file
//
// Parameter:               -
// Returns:                 -
// Changes Globals:     -
//===========================================================================
char *AAS_LoadAASLump(FILE *fp, int offset, int length, void *buf)
{
    if (!length)
    {
        printf("lump size 0\n");
        return buf;
    } //end if
    //seek to the data
    if (fseek(fp, offset, SEEK_SET))
    {
        AAS_Error("can't seek to lump\n");
        AAS_DumpAASData();
        fclose(fp);
        return 0;
    } //end if
    //allocate memory
    if (!buf) buf = (void *) GetClearedMemory(length);
    //read the data
    if (fread((char *) buf, 1, length, fp) != length)
    {
        AAS_Error("can't read lump\n");
        FreeMemory(buf);
        AAS_DumpAASData();
        fclose(fp);
        return NULL;
    } //end if
    return buf;
} //end of the function AAS_LoadAASLump
//===========================================================================
//
// Parameter:           -
// Returns:             -
// Changes Globals:     -
//===========================================================================
void AAS_DData(unsigned char *data, int size)
{
    int i;

    for (i = 0; i < size; i++)
    {
        data[i] ^= (unsigned char) i * 119;
    } //end for
} //end of the function AAS_DData
//===========================================================================
// load an aas file
//
// Parameter:               -
// Returns:                 -
// Changes Globals:     -
//===========================================================================
qboolean AAS_LoadAASFile(char *filename, int fpoffset, int fplength)
{
    FILE *fp;
    aas_header_t header;
    int offset, length;

    //dump current loaded aas file
    AAS_DumpAASData();
    //open the file
    fp = fopen(filename, "rb");
    if (!fp)
    {
        AAS_Error("can't open %s\n", filename);
        return false;
    } //end if
    //seek to the correct position (in the pak file)
    if (fseek(fp, fpoffset, SEEK_SET))
    {
        AAS_Error("can't seek to file %s\n");
        fclose(fp);
        return false;
    } //end if
    //read the header
    if (fread(&header, sizeof(aas_header_t), 1, fp) != 1)
    {
        AAS_Error("can't read header of file %s\n", filename);
        fclose(fp);
        return false;
    } //end if
    //check header identification
    header.ident = LittleLong(header.ident);
    if (header.ident != AASID)
    {
        AAS_Error("%s is not an AAS file\n", filename);
        fclose(fp);
        return false;
    } //end if
    //check the version
    header.version = LittleLong(header.version);
    if (header.version != AASVERSION_OLD && header.version != AASVERSION)
    {
        AAS_Error("%s is version %i, not %i\n", filename, header.version, AASVERSION);
        fclose(fp);
        return false;
    } //end if
    //
    if (header.version == AASVERSION)
    {
        AAS_DData((unsigned char *) &header + 8, sizeof(aas_header_t) - 8);
    } //end if
    aasworld.bspchecksum = LittleLong(header.bspchecksum);
    //load the lumps:
    //bounding boxes
    offset = fpoffset + LittleLong(header.lumps[AASLUMP_BBOXES].fileofs);
    length = LittleLong(header.lumps[AASLUMP_BBOXES].filelen);
    aasworld.bboxes = (aas_bbox_t *) AAS_LoadAASLump(fp, offset, length, aasworld.bboxes);
    if (!aasworld.bboxes) return false;
    aasworld.numbboxes = length / sizeof(aas_bbox_t);
    //vertexes
    offset = fpoffset + LittleLong(header.lumps[AASLUMP_VERTEXES].fileofs);
    length = LittleLong(header.lumps[AASLUMP_VERTEXES].filelen);
    aasworld.vertexes = (aas_vertex_t *) AAS_LoadAASLump(fp, offset, length, aasworld.vertexes);
    if (!aasworld.vertexes) return false;
    aasworld.numvertexes = length / sizeof(aas_vertex_t);
    //planes
    offset = fpoffset + LittleLong(header.lumps[AASLUMP_PLANES].fileofs);
    length = LittleLong(header.lumps[AASLUMP_PLANES].filelen);
    aasworld.planes = (aas_plane_t *) AAS_LoadAASLump(fp, offset, length, aasworld.planes);
    if (!aasworld.planes) return false;
    aasworld.numplanes = length / sizeof(aas_plane_t);
    //edges
    offset = fpoffset + LittleLong(header.lumps[AASLUMP_EDGES].fileofs);
    length = LittleLong(header.lumps[AASLUMP_EDGES].filelen);
    aasworld.edges = (aas_edge_t *) AAS_LoadAASLump(fp, offset, length, aasworld.edges);
    if (!aasworld.edges) return false;
    aasworld.numedges = length / sizeof(aas_edge_t);
    //edgeindex
    offset = fpoffset + LittleLong(header.lumps[AASLUMP_EDGEINDEX].fileofs);
    length = LittleLong(header.lumps[AASLUMP_EDGEINDEX].filelen);
    aasworld.edgeindex = (aas_edgeindex_t *) AAS_LoadAASLump(fp, offset, length, aasworld.edgeindex);
    if (!aasworld.edgeindex) return false;
    aasworld.edgeindexsize = length / sizeof(aas_edgeindex_t);
    //faces
    offset = fpoffset + LittleLong(header.lumps[AASLUMP_FACES].fileofs);
    length = LittleLong(header.lumps[AASLUMP_FACES].filelen);
    aasworld.faces = (aas_face_t *) AAS_LoadAASLump(fp, offset, length, aasworld.faces);
    if (!aasworld.faces) return false;
    aasworld.numfaces = length / sizeof(aas_face_t);
    //faceindex
    offset = fpoffset + LittleLong(header.lumps[AASLUMP_FACEINDEX].fileofs);
    length = LittleLong(header.lumps[AASLUMP_FACEINDEX].filelen);
    aasworld.faceindex = (aas_faceindex_t *) AAS_LoadAASLump(fp, offset, length, aasworld.faceindex);
    if (!aasworld.faceindex) return false;
    aasworld.faceindexsize = length / sizeof(int);
    //convex areas
    offset = fpoffset + LittleLong(header.lumps[AASLUMP_AREAS].fileofs);
    length = LittleLong(header.lumps[AASLUMP_AREAS].filelen);
    aasworld.areas = (aas_area_t *) AAS_LoadAASLump(fp, offset, length, aasworld.areas);
    if (!aasworld.areas) return false;
    aasworld.numareas = length / sizeof(aas_area_t);
    //area settings
    offset = fpoffset + LittleLong(header.lumps[AASLUMP_AREASETTINGS].fileofs);
    length = LittleLong(header.lumps[AASLUMP_AREASETTINGS].filelen);
    aasworld.areasettings = (aas_areasettings_t *) AAS_LoadAASLump(fp, offset, length, aasworld.areasettings);
    if (!aasworld.areasettings) return false;
    aasworld.numareasettings = length / sizeof(aas_areasettings_t);
    //reachability list
    offset = fpoffset + LittleLong(header.lumps[AASLUMP_REACHABILITY].fileofs);
    length = LittleLong(header.lumps[AASLUMP_REACHABILITY].filelen);
    aasworld.reachability = (aas_reachability_t *) AAS_LoadAASLump(fp, offset, length, aasworld.reachability);
    if (length && !aasworld.reachability) return false;
    aasworld.reachabilitysize = length / sizeof(aas_reachability_t);
    //nodes
    offset = fpoffset + LittleLong(header.lumps[AASLUMP_NODES].fileofs);
    length = LittleLong(header.lumps[AASLUMP_NODES].filelen);
    aasworld.nodes = (aas_node_t *) AAS_LoadAASLump(fp, offset, length, aasworld.nodes);
    if (!aasworld.nodes) return false;
    aasworld.numnodes = length / sizeof(aas_node_t);
    //cluster portals
    offset = fpoffset + LittleLong(header.lumps[AASLUMP_PORTALS].fileofs);
    length = LittleLong(header.lumps[AASLUMP_PORTALS].filelen);
    aasworld.portals = (aas_portal_t *) AAS_LoadAASLump(fp, offset, length, aasworld.portals);
    if (length && !aasworld.portals) return false;
    aasworld.numportals = length / sizeof(aas_portal_t);
    //cluster portal index
    offset = fpoffset + LittleLong(header.lumps[AASLUMP_PORTALINDEX].fileofs);
    length = LittleLong(header.lumps[AASLUMP_PORTALINDEX].filelen);
    aasworld.portalindex = (aas_portalindex_t *) AAS_LoadAASLump(fp, offset, length, aasworld.portalindex);
    if (length && !aasworld.portalindex) return false;
    aasworld.portalindexsize = length / sizeof(aas_portalindex_t);
    //clusters
    offset = fpoffset + LittleLong(header.lumps[AASLUMP_CLUSTERS].fileofs);
    length = LittleLong(header.lumps[AASLUMP_CLUSTERS].filelen);
    aasworld.clusters = (aas_cluster_t *) AAS_LoadAASLump(fp, offset, length, aasworld.clusters);
    if (length && !aasworld.clusters) return false;
    aasworld.numclusters = length / sizeof(aas_cluster_t);
    //swap everything
    AAS_SwapAASData();
    //aas file is loaded
    aasworld.loaded = true;
    //close the file
    fclose(fp);
    return true;
} //end of the function AAS_LoadAASFile
//===========================================================================
//
// Parameter:               -
// Returns:                 -
// Changes Globals:     -
//===========================================================================
int AAS_WriteAASLump(FILE *fp, aas_header_t *h, int lumpnum, void *data, int length)
{
    aas_lump_t *lump;

    lump = &h->lumps[lumpnum];
    
    lump->fileofs = LittleLong(ftell(fp));
    lump->filelen = LittleLong(length);

    if (length > 0)
    {
        if (fwrite(data, length, 1, fp) < 1)
        {
            Log_Print("error writing lump %s\n", lumpnum);
            fclose(fp);
            return false;
        } //end if
    } //end if
    return true;
} //end of the function AAS_WriteAASLump
//===========================================================================
//
// Parameter:               -
// Returns:                 -
// Changes Globals:     -
//===========================================================================
void AAS_ShowNumReachabilities(int tt, char *name)
{
    int i, num;

    num = 0;
    for (i = 0; i < aasworld.reachabilitysize; i++)
    {
        if ((aasworld.reachability[i].traveltype & TRAVELTYPE_MASK) == tt)
            num++;
    } //end for
    Log_Print("%6d %s\n", num, name);
} //end of the function AAS_ShowNumReachabilities
//===========================================================================
//
// Parameter:               -
// Returns:                 -
// Changes Globals:     -
//===========================================================================
void AAS_ShowTotals(void)
{
    Log_Print("numvertexes = %d\r\n", aasworld.numvertexes);
    Log_Print("numplanes = %d\r\n", aasworld.numplanes);
    Log_Print("numedges = %d\r\n", aasworld.numedges);
    Log_Print("edgeindexsize = %d\r\n", aasworld.edgeindexsize);
    Log_Print("numfaces = %d\r\n", aasworld.numfaces);
    Log_Print("faceindexsize = %d\r\n", aasworld.faceindexsize);
    Log_Print("numareas = %d\r\n", aasworld.numareas);
    Log_Print("numareasettings = %d\r\n", aasworld.numareasettings);
    Log_Print("reachabilitysize = %d\r\n", aasworld.reachabilitysize);
    Log_Print("numnodes = %d\r\n", aasworld.numnodes);
    Log_Print("numportals = %d\r\n", aasworld.numportals);
    Log_Print("portalindexsize = %d\r\n", aasworld.portalindexsize);
    Log_Print("numclusters = %d\r\n", aasworld.numclusters);
    AAS_ShowNumReachabilities(TRAVEL_WALK, "walk");
    AAS_ShowNumReachabilities(TRAVEL_CROUCH, "crouch");
    AAS_ShowNumReachabilities(TRAVEL_BARRIERJUMP, "barrier jump");
    AAS_ShowNumReachabilities(TRAVEL_JUMP, "jump");
    AAS_ShowNumReachabilities(TRAVEL_LADDER, "ladder");
    AAS_ShowNumReachabilities(TRAVEL_WALKOFFLEDGE, "walk off ledge");
    AAS_ShowNumReachabilities(TRAVEL_SWIM, "swim");
    AAS_ShowNumReachabilities(TRAVEL_WATERJUMP, "water jump");
    AAS_ShowNumReachabilities(TRAVEL_TELEPORT, "teleport");
    AAS_ShowNumReachabilities(TRAVEL_ELEVATOR, "elevator");
    AAS_ShowNumReachabilities(TRAVEL_ROCKETJUMP, "rocket jump");
    AAS_ShowNumReachabilities(TRAVEL_BFGJUMP, "bfg jump");
    AAS_ShowNumReachabilities(TRAVEL_GRAPPLEHOOK, "grapple hook");
    AAS_ShowNumReachabilities(TRAVEL_DOUBLEJUMP, "double jump");
    AAS_ShowNumReachabilities(TRAVEL_RAMPJUMP, "ramp jump");
    AAS_ShowNumReachabilities(TRAVEL_STRAFEJUMP, "strafe jump");
    AAS_ShowNumReachabilities(TRAVEL_JUMPPAD, "jump pad");
    AAS_ShowNumReachabilities(TRAVEL_FUNCBOB, "func bob");
} //end of the function AAS_ShowTotals
//===========================================================================
// aas data is useless after writing to file because it is byte swapped
//
// Parameter:               -
// Returns:                 -
// Changes Globals:     -
//===========================================================================
qboolean AAS_WriteAASFile(char *filename)
{
    aas_header_t header;
    FILE *fp;

    Log_Print("writing %s\n", filename);
    AAS_ShowTotals();
    //swap the aas data
    AAS_SwapAASData();
    //initialize the file header
    memset(&header, 0, sizeof(aas_header_t));
    header.ident = LittleLong(AASID);
    header.version = LittleLong(AASVERSION);
    header.bspchecksum = LittleLong(aasworld.bspchecksum);
    //open a new file
    fp = fopen(filename, "wb");
    if (!fp)
    {
        Log_Print("error opening %s\n", filename);
        return false;
    } //end if
    //write the header
    if (fwrite(&header, sizeof(aas_header_t), 1, fp) < 1)
    {
        fclose(fp);
        return false;
    } //end if
    //add the data lumps to the file
    if (!AAS_WriteAASLump(fp, &header, AASLUMP_BBOXES, aasworld.bboxes,
        aasworld.numbboxes * sizeof(aas_bbox_t))) return false;
    if (!AAS_WriteAASLump(fp, &header, AASLUMP_VERTEXES, aasworld.vertexes,
        aasworld.numvertexes * sizeof(aas_vertex_t))) return false;
    if (!AAS_WriteAASLump(fp, &header, AASLUMP_PLANES, aasworld.planes,
        aasworld.numplanes * sizeof(aas_plane_t))) return false;
    if (!AAS_WriteAASLump(fp, &header, AASLUMP_EDGES, aasworld.edges,
        aasworld.numedges * sizeof(aas_edge_t))) return false;
    if (!AAS_WriteAASLump(fp, &header, AASLUMP_EDGEINDEX, aasworld.edgeindex,
        aasworld.edgeindexsize * sizeof(aas_edgeindex_t))) return false;
    if (!AAS_WriteAASLump(fp, &header, AASLUMP_FACES, aasworld.faces,
        aasworld.numfaces * sizeof(aas_face_t))) return false;
    if (!AAS_WriteAASLump(fp, &header, AASLUMP_FACEINDEX, aasworld.faceindex,
        aasworld.faceindexsize * sizeof(aas_faceindex_t))) return false;
    if (!AAS_WriteAASLump(fp, &header, AASLUMP_AREAS, aasworld.areas,
        aasworld.numareas * sizeof(aas_area_t))) return false;
    if (!AAS_WriteAASLump(fp, &header, AASLUMP_AREASETTINGS, aasworld.areasettings,
        aasworld.numareasettings * sizeof(aas_areasettings_t))) return false;
    if (!AAS_WriteAASLump(fp, &header, AASLUMP_REACHABILITY, aasworld.reachability,
        aasworld.reachabilitysize * sizeof(aas_reachability_t))) return false;
    if (!AAS_WriteAASLump(fp, &header, AASLUMP_NODES, aasworld.nodes,
        aasworld.numnodes * sizeof(aas_node_t))) return false;
    if (!AAS_WriteAASLump(fp, &header, AASLUMP_PORTALS, aasworld.portals,
        aasworld.numportals * sizeof(aas_portal_t))) return false;
    if (!AAS_WriteAASLump(fp, &header, AASLUMP_PORTALINDEX, aasworld.portalindex,
        aasworld.portalindexsize * sizeof(aas_portalindex_t))) return false;
    if (!AAS_WriteAASLump(fp, &header, AASLUMP_CLUSTERS, aasworld.clusters,
        aasworld.numclusters * sizeof(aas_cluster_t))) return false;
    //rewrite the header with the added lumps
    fseek(fp, 0, SEEK_SET);
    AAS_DData((unsigned char *) &header + 8, sizeof(aas_header_t) - 8);
    if (fwrite(&header, sizeof(aas_header_t), 1, fp) < 1)
    {
        fclose(fp);
        return false;
    } //end if
    //close the file
    fclose(fp);
    return true;
} //end of the function AAS_WriteAASFile

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