root/trunk/contrib/vmap_extractor_v2/vmapextract/dbcfile.cpp

#include "dbcfile.h"
#include "mpq.h"
#include "Stormlib.h"
#define __STORMLIB_SELF__

DBCFile::DBCFile(const std::string &filename) : filename(filename)
{
        data = NULL;
}

bool DBCFile::open()
{
        MPQFile f(filename.c_str());

        // Need some error checking, otherwise an unhandled exception error occurs
        // if people screw with the data path.
        if (f.isEof() == true)
                return false;

        unsigned char header[4];
        unsigned int na,nb,es,ss;

        f.read(header,4); // File Header

        if (header[0]!='W' || header[1]!='D' || header[2]!='B' || header[3] != 'C') {

                f.close();
                data = NULL;
                printf("Critical Error: An error occured while trying to read the DBCFile %s.", filename.c_str());
                return false;
        }

        //assert(header[0]=='W' && header[1]=='D' && header[2]=='B' && header[3] == 'C');

        f.read(&na,4); // Number of records
        f.read(&nb,4); // Number of fields
        f.read(&es,4); // Size of a record
        f.read(&ss,4); // String size
        
        recordSize = es;
        recordCount = na;
        fieldCount = nb;
        stringSize = ss;
        //assert(fieldCount*4 == recordSize);
        assert(fieldCount*4 >= recordSize);

        data = new unsigned char[recordSize*recordCount+stringSize];
        stringTable = data + recordSize*recordCount;
        f.read(data,recordSize*recordCount+stringSize);
        f.close();
        return true;
}

DBCFile::~DBCFile()
{
        delete [] data;
}

DBCFile::Record DBCFile::getRecord(size_t id)
{
        assert(data);
        return Record(*this, data + id*recordSize);
}

DBCFile::Iterator DBCFile::begin()
{
        assert(data);
        return Iterator(*this, data);
}
DBCFile::Iterator DBCFile::end()
{
        assert(data);
        return Iterator(*this, stringTable);
}