/// <summary>
/// Pastes the clipboard to the specified extent and position.
/// </summary>
/// <param name="extent">The extent to paste to, which must not be <c>null</c>.</param>
/// <param name="position">The position.</param>
/// <returns>The number of modifications.</returns>
/// <exception cref="ArgumentNullException"><paramref name="extent" /> is <c>null</c>.</exception>
/// <remarks>
/// Null tiles in the array will be ignored when pasting.
/// </remarks>
public int PasteTo([NotNull] Extent extent, Vector position)
{
if (extent == null)
{
throw new ArgumentNullException(nameof(extent));
}
var count = 0;
for (var x = 0; x < Dimensions.X; ++x)
{
for (var y = 0; y < Dimensions.Y; ++y)
{
var tile = _tiles[x, y];
if (tile != null)
{
var offsetPosition = new Vector(x, y) + position;
if (extent.IsInBounds(offsetPosition) && extent.SetTile(offsetPosition, tile.Value))
{
++count;
}
}
}
}
foreach (var tileEntity in _tileEntities)
{
var offsetPosition = tileEntity.Position + position;
if (extent.IsInBounds(offsetPosition) && extent.AddTileEntity(tileEntity.WithPosition(offsetPosition)))
{
++count;
}
}
return(count);
}
/// <inheritdoc /> public bool Undo(Extent extent) => extent.AddTileEntity(TileEntity);