//public bool IsEmpty { get { return level == null; } }
/// <summary>
/// Creates a new empty structure object.
/// </summary>
/// <param name="level"></param>
private Structure(int index, Level level)
{
this.level = level;
this.Index = index;
data = new StructureData(this);
data.ClearToEmpty();
data[0, 0] = 0x00;
CalculateRomBytes();
}
public void LoadData(Stream s)
{
if (EditInProgress)
{
throw new InvalidOperationException("Attempted to perform a LoadData operation while an edit operation is in progress.");
}
data.ClearToEmpty();
int y = 0;
Byte rowDescriptor = 0;
while (y < 16 && (rowDescriptor = (byte)s.ReadByte()) != StructTerminator)
{
// The row descriptor byte contains both the x-coordinate and length.
int x = rowDescriptor / 16;
int count = rowDescriptor % 16;
if (count == 0)
{
count = 16; // A value of zero is a special case, indicates a length of 16
}
// Bytes will be copied to buffer
while (x < 16 && count > 0)
{
data[x, y] = (byte)s.ReadByte();
x++;
count--;
}
// Any remaining bytes are erroneous but will be read so that following structs can be properly loaded.
while (count > 0)
{
s.ReadByte();
count--;
}
y++;
}
FinalizeEdit();
}
