public static OffsetCoord QoffsetFromCube(OffsetCoord.Parity offset, Hex h)
{
var col = h.q;
var row = h.r + (h.q + (int)offset * (h.q & 1)) / 2;
if (offset != OffsetCoord.Parity.Even && offset != OffsetCoord.Parity.Odd)
{
throw new ArgumentException("offset must be EVEN (+1) or ODD (-1)");
}
return(new OffsetCoord(col, row));
}
public static Hex RoffsetToCube(OffsetCoord.Parity offset, OffsetCoord h)
{
var q = h.col - (h.row + (int)offset * (h.row & 1)) / 2;
var r = h.row;
var s = -q - r;
if (offset != OffsetCoord.Parity.Even && offset != OffsetCoord.Parity.Odd)
{
throw new ArgumentException("offset must be EVEN (+1) or ODD (-1)");
}
return(new Hex(q, r, s));
}
