/// <summary>
/// Alternative to OverwriteUpperBits that attempts to guess the upperbits by seeing if each axis of the new position would be
/// closer to the old one if the upper bit is incremented by one, two, three etc. Stops trying when it fails to get a better result.
/// </summary>
/// <param name="oldcpos">Last best position test against.</param>
/// <returns>Returns a corrected CompressPos</returns>
public static void GuessUpperBits(this CompressedElement newcpos, ElementCrusher ec, CompressedElement oldcpos, BitCullingLevel bcl)
{
//var crusher = oldcpos.crusher;
newcpos.Set(
ec,
ec.XCrusher.GuessUpperBits(newcpos[0], oldcpos[0], bcl),
ec.YCrusher.GuessUpperBits(newcpos[1], oldcpos[1], bcl),
ec.ZCrusher.GuessUpperBits(newcpos[2], oldcpos[2], bcl)
);
}
//public static CompressedElement OverwriteUpperBits(this CompressedElement low, CompressedElement up, FloatCrusher[] ec, BitCullingLevel bcl)
//{
// return new CompressedElement(
// //ec,
// ec[0].OverwriteUpperBits(low.cx, up.cx, bcl),
// ec[1].OverwriteUpperBits(low.cy, up.cy, bcl),
// ec[2].OverwriteUpperBits(low.cz, up.cz, bcl)
// );
//}
public static void ZeroLowerBits(this CompressedElement fullpos, CompressedElement target, BitCullingLevel bcl)
{
ElementCrusher ec = fullpos.crusher;
target.Set(
ec, //fullpos.crusher,
ec.XCrusher.ZeroLowerBits(fullpos.cx, bcl),
ec.YCrusher.ZeroLowerBits(fullpos.cy, bcl),
ec.ZCrusher.ZeroLowerBits(fullpos.cz, bcl)
);
}
//public static CompressedElement GuessUpperBits(this CompressedElement newcpos, CompressedElement oldcpos, FloatCrusher[] ec, BitCullingLevel bcl)
//{
// var crusher = oldcpos.crusher;
// return new CompressedElement(
// crusher,
// new CompressedValue(crusher.xcrusher, ec[0].GuessUpperBits(newcpos.cx, oldcpos.cx, bcl), crusher.xcrusher.GetBits(bcl)),
// new CompressedValue(crusher.ycrusher, ec[1].GuessUpperBits(newcpos.cx, oldcpos.cx, bcl), crusher.xcrusher.GetBits(bcl)),
// new CompressedValue(crusher.zcrusher, ec[2].GuessUpperBits(newcpos.cx, oldcpos.cx, bcl), crusher.xcrusher.GetBits(bcl))
// );
//}
/// <summary>
/// Replace the upperbits of the first compressed element with the upper bits of the second, using BitCullingLevel as the separation point.
/// </summary>
public static void OverwriteUpperBits(this CompressedElement low, CompressedElement uppers, BitCullingLevel bcl)
{
ElementCrusher ec = low.crusher;
low.Set(
ec,
ec.XCrusher.OverwriteUpperBits(low.cx, uppers.cx, bcl),
ec.YCrusher.OverwriteUpperBits(low.cy, uppers.cy, bcl),
ec.ZCrusher.OverwriteUpperBits(low.cz, uppers.cz, bcl)
);
}
