private static Command ReadVoid(int b1, Stream stream)
{
int n = (b1 & 0b11111000) >> 3;
Delta nd = DeltaDecoder.DecodeNd(n);
return(Commands.Void(nd));
}
private static Command ReadSMove(int b1, Stream stream)
{
int b2 = stream.StrictReadByte();
int a = (b1 & 0b00110000) >> 4;
int i = (b2 & 0b00011111) >> 0;
Delta lld = DeltaDecoder.DecodeLld(a, i);
return(Commands.SMove(lld));
}
private static Command ReadFission(int b1, Stream stream)
{
int b2 = stream.StrictReadByte();
int n = (b1 & 0b11111000) >> 3;
int m = (b2 & 0b00000000) >> 0;
Delta nd = DeltaDecoder.DecodeNd(n);
return(Commands.Fission(nd, m));
}
internal override Command Decode(int prefix, Func <int> nextByte)
{
int suffix = nextByte();
int a = (prefix & 0b00110000) >> 4;
int i = (suffix & 0b00011111) >> 0;
Delta lld = DeltaDecoder.DecodeLld(a, i);
return(Commands.SMove(lld));
}
private static Command ReadGVoid(int b1, Stream stream)
{
int n = (b1 & 0b11111000) >> 3;
int dx = stream.StrictReadByte();
int dy = stream.StrictReadByte();
int dz = stream.StrictReadByte();
Delta nd = DeltaDecoder.DecodeNd(n);
Delta fd = DeltaDecoder.DecodeFd(dx, dy, dz);
return(Commands.GVoid(nd, fd));
}
private static Command ReadLMove(int b1, Stream stream)
{
int b2 = stream.StrictReadByte();
int a1 = (b1 & 0b00110000) >> 4;
int i1 = (b2 & 0b00001111) >> 0;
int a2 = (b1 & 0b11000000) >> 6;
int i2 = (b2 & 0b11110000) >> 4;
Delta sld1 = DeltaDecoder.DecodeSld(a1, i1);
Delta sld2 = DeltaDecoder.DecodeSld(a2, i2);
return(Commands.LMove(sld1, sld2));
}
internal override Command Decode(int prefix, Func <int> nextByte)
{
int suffix = nextByte();
int a1 = (prefix & 0b00110000) >> 4;
int i1 = (suffix & 0b00001111) >> 0;
int a2 = (prefix & 0b11000000) >> 6;
int i2 = (suffix & 0b11110000) >> 4;
Delta sld1 = DeltaDecoder.DecodeSld(a1, i1);
Delta sld2 = DeltaDecoder.DecodeSld(a2, i2);
return(Commands.LMove(sld1, sld2));
}
