Doom .WAD Reading by baldurk

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bool ReadWad() {   // BEGIN READING WAD!   FILE *fp = fopen("doom2.wad", "r");   if(!fp)   {     cout << "Holy cow! Can't open doom2.wad" << endl;     return false;   }   char ID[5];   memset(ID, 0, 5);   fread(ID, sizeof(char), 4, fp);   if(strcmp(ID, "IWAD") && strcmp(ID, "PWAD"))   {     cout << "Holy cow! doom2.wad ain't a valid PWAD or IWAD. ID: " << ID << endl;     return false;   }   long size, offset;   fread(&size, sizeof(long), 1, fp);   cerr << "Got " << size << " lumps." << endl;   fread(&offset, sizeof(long), 1, fp);   cerr << "Directory at: " << offset << endl;   cerr << "Seeking.." << endl;   int ret = fseek(fp, offset, SEEK_SET);   if(ret)   {     cout << "Holy cow! error seeking to directory." << endl;     return false;   }   return true; }