public static byte[] Marshal(TrackElement e)
{
byte[] buf = new byte[2];
buf[0] = (byte)e.Segment.Type;
int featureBit = 0;
featureBit = BitOp.SetCond(featureBit, 7, e.ChainLift);
featureBit = BitOp.SetCond(featureBit, 6, e.InvertedTrack);
featureBit = BitOp.SetCond(featureBit, 3, e.Station);
if (e.Segment.Type == SegmentType.ELEM_END_STATION || e.Segment.Type == SegmentType.ELEM_BEGIN_STATION || e.Segment.Type == SegmentType.ELEM_MIDDLE_STATION)
{
// Set the station bit
featureBit |= e.StationNumber;
}
// XXX booster?
if (e.Segment.Type == SegmentType.ELEM_BRAKES || e.Segment.Type == SegmentType.ELEM_BLOCK_BRAKES)
{
float bm = (float)(e.BoostMagnitude / 7.6);
featureBit |= (int)bm;
}
else
{
// 2nd bit seems to be set in most cases.
featureBit |= 1 << 2;
}
// XXX, rotation for multi dimensional coasters
buf[1] = (byte)featureBit;
return buf;
}
public static TrackElement Unmarshal(byte[] rawElement)
{
if (rawElement.Length != 2)
{
throw new Exception("Invalid length for element input");
}
// XXX hack for brakes
if (rawElement[0] == 0xd8)
{
rawElement[0] = (byte)SegmentType.ELEM_BRAKES;
}
TrackElement te = new TrackElement();
te.Segment = Track.TrackSegmentMap[(SegmentType)rawElement[0]];
if (te.Segment.Type == SegmentType.ELEM_END_OF_RIDE) return te;
int q = (int)rawElement[1];
te.ChainLift = BitOp.On(q, 7);
te.InvertedTrack = BitOp.On(q, 6);
te.Station = BitOp.On(q, 3);
#if DEBUG
if (te.Station)
{
Console.WriteLine("found station piece");
Console.WriteLine(te.Segment);
}
#endif
te.StationNumber = q & 3;
te.BoostMagnitude = (float)(q & 15) * (float)7.6;
te.Rotation = (q & 15) * 45 - 180;
return te;
}
