private static void ReadLayer(FileStream stream, Grid grid, int version)
{
stream.Read(MapBuffer, 0, 4);
grid.Width = BitConverter.ToInt32(MapBuffer, 0);
stream.Read(MapBuffer, 0, 4);
grid.Height = BitConverter.ToInt32(MapBuffer, 0);
if (version >= 258)
{
stream.Read(MapBuffer, 0, 4);
}
stream.Read(MapBuffer, 0, 25);
if (version == 260)
{
stream.Read(MapBuffer, 0, 2);
}
else if (version == 261)
{
stream.Read(MapBuffer, 0, 3);
}
int size = grid.Width * grid.Height;
if (grid.Cells.Count == 0)
{
for (int i = 0; i < size; i++)
{
Cell cell = new Cell((short)i);
grid.Cells.Add(cell);
}
}
int dataBlocks = stream.ReadByte();
if (dataBlocks < 1 && dataBlocks > 2)
{
throw new Exception($"Invalid data block count in {grid.FileName}");
}
//MAIN
stream.Read(MapBuffer, 0, 8);
int compressedSize = BitConverter.ToInt32(MapBuffer, 4);
int nextPosition = (int)stream.Position + compressedSize;
Zip.ResetStream(stream);
int read = Zip.Read(MapBuffer, 0, size * 2);
//if (read != size * 2) {
//throw new Exception($"Failed to read layer stream in {grid.FileName}");
//}
read >>= 1;
stream.Position = nextPosition;
List <Item> items = new List <Item>();
for (int j = 0, k = 0; j < read; j++, k += 2)
{
Cell cell = grid.Cells[j];
short id = BitConverter.ToInt16(MapBuffer, k);
Item item;
if (!DefaultsByID.TryGetValue(id, out item))
{
//throw new Exception($"Failed to find Object with ID {id} [{Reader.ShortToCoordinate(id)}] in {grid.FileName}");
item = Item.EMPTY.Copy();
id = -1;
}
else
{
item = item.Copy();
}
item.Position = (short)j;
items.Add(item);
if (id != -1)
{
cell.Objects.Add(item);
}
}
if (dataBlocks == 2)
{
//DATA
stream.Read(MapBuffer, 0, 13);
compressedSize = BitConverter.ToInt32(MapBuffer, 9);
nextPosition = (int)stream.Position + compressedSize;
Zip.ResetStream(stream);
read = Zip.Read(MapBuffer, 0, size);
//if (read != size) {
// throw new Exception($"Failed to read layer stream in {grid.FileName}");
//}
stream.Position = nextPosition;
for (int j = 0; j < read; j++)
{
Item item = items[j];
item.Direction = MapBuffer[j];
}
}
}