// Returns actual map data when given a map entry (from GetMapList)
public static MapData GetMapData(FileStream wadStream, WADInfo wadInfo, WADMapEntry mapEntry)
{
var mapData = new MapData(wadInfo, mapEntry.Name,
GetResource(wadStream, mapEntry.Things),
GetResource(wadStream, mapEntry.LineDefs),
GetResource(wadStream, mapEntry.SideDefs),
GetResource(wadStream, mapEntry.Sectors),
GetResource(wadStream, mapEntry.SubSectors),
GetResource(wadStream, mapEntry.Segs),
GetResource(wadStream, mapEntry.Vertexes));
return(mapData);
}
// Gets a list of maps in the WAD
// At this level, we only care about metadata - so we get the name of the map and pointers to resources containing the map data
public static List <WADMapEntry> GetMapList(FileStream wadStream, WADInfo wadInfo)
{
var maps = new List <WADMapEntry>();
// Map names are either in the format "ExMy" or "MAPxx"
// They also have a zero resource length as they're just markers in the WAD directory
foreach (var entry in wadInfo.Entries.Where(e => (e.Name.StartsWith("MAP") || (e.Name[0] == 'E' && e.Name[2] == 'M')) && e.ResourceLength == 0))
{
var map = new WADMapEntry()
{
Name = entry.Name
};
// The resource entries directly after the map marker are the actual map data
// Let's find the ones we're interested in and hold pointers to them so we can get to them easily later
var startIndex = wadInfo.Entries.IndexOf(entry);
var index = startIndex + 1;
while (index < startIndex + 10 || index >= wadInfo.Entries.Count - 1)
{
switch (wadInfo.Entries[index].Name)
{
case "THINGS": map.Things = wadInfo.Entries[index]; break;
case "LINEDEFS": map.LineDefs = wadInfo.Entries[index]; break;
case "SIDEDEFS": map.SideDefs = wadInfo.Entries[index]; break;
case "VERTEXES": map.Vertexes = wadInfo.Entries[index]; break;
case "SECTORS": map.Sectors = wadInfo.Entries[index]; break;
case "SSECTORS": map.SubSectors = wadInfo.Entries[index]; break;
case "SEGS": map.Segs = wadInfo.Entries[index]; break;
}
index++;
}
maps.Add(map);
}
return(maps);
}
