public static byte[] Marshal(Egress egr)
{
// might need to 0-align?
byte[] buf = new byte[6];
int ftrBit = egr.Direction;
ftrBit = BitOp.SetCond(ftrBit, 7, egr.Exit);
buf[1] = (byte)ftrBit;
BitConverter.GetBytes(egr.XOffset).CopyTo(buf, 2);
BitConverter.GetBytes(egr.YOffset).CopyTo(buf, 4);
return buf;
}
// Get list of entrances/exits for a ride from raw data
// Copied mostly from "Scenery Items" here:
// http://freerct.github.io/RCTTechDepot-Archive/TD6.html
public static Egress[] Unmarshal(byte[] buf)
{
List<Egress> egresses = new List<Egress>();
for(int i = 0; i < buf.Length; i += 6)
{
if(buf[i] == (byte)SegmentType.ELEM_END_OF_RIDE) break;
int features = (int)buf[i + 1];
Egress egr = new Egress()
{
Exit = BitOp.On(features, 7),
Direction = features & 3,
XOffset = BitConverter.ToInt16(buf, i + 2),
YOffset = BitConverter.ToInt16(buf, i + 4),
};
egresses.Add(egr);
}
return egresses.ToArray();
}