public static CellIndex operator -(int lhs, CellIndex rhs)
{
CellIndex result = new CellIndex(0);
result.index = lhs - rhs.index;
result.rangeCheck();
return result;
}
public static CellIndex operator -(CellIndex lhs, int rhs)
{
CellIndex result = new CellIndex(0);
result.index = lhs.index - rhs;
result.rangeCheck();
return result;
}
public static CellIndex fromAngle(float degrees)
{
CellIndex result = new CellIndex(0);
// Allow values near 360 to round down to 0
degrees += 30.0f;
// Scale and quantise to index
result.index = Mathf.FloorToInt(degrees / 60.0f);
if (result.index > 5) result.index -= 6;
result.rangeCheck();
return result;
}