/// <summary>
/// Tries to translate <paramref name="region"/> by the specified <paramref name="offset"/>, and returns a
/// value indicating whether the translation was successful. If the translation was successful,
/// <see langword="true"/> will be returned, and <paramref name="beforeChange"/> will be set to a region
/// equivalent to <paramref name="region"/> before the translation was applied.
/// </summary>
/// <param name="region">
/// The region to try to translate.
/// </param>
/// <param name="offset">
/// The offset by which to translate this region.
/// </param>
/// <param name="beforeChange">
/// If the translation succeeds, a region equivalent to this region before the translation was applied.
/// </param>
/// <returns>
/// <see langword="true"/> if the translation succeeded; otherwise, <see langword="false"/>.
/// </returns>
public static bool TryTranslateBy(this IMoveOnlyRegion region, Coord offset, out IReadOnlyRegion beforeChange)
{
if (region is null)
{
throw new ArgumentNullException(nameof(region));
}
return(region.TryMoveTo(region.TopLeft + offset, out beforeChange));
}
/// <summary>
/// Returns a value indicating whether <paramref name="region"/> can be translated by the specified
/// <paramref name="offset"/>.
/// </summary>
/// <param name="region">
/// The region to check.
/// </param>
/// <param name="offset">
/// The offset to check.
/// </param>
/// <returns>
/// <see langword="true"/> if <paramref name="region"/> can be translated by the specified
/// <paramref name="offset"/>; otherwise, <see langword="false"/>.
/// </returns>
public static bool CanTranslateBy(this IMoveOnlyRegion region, Coord offset)
{
if (region is null)
{
throw new ArgumentNullException(nameof(region));
}
return(region.CanMoveTo(region.TopLeft + offset));
}
