public void ProcessRedo()
{
if (_Redo.Count > 0)
{
var item = _Redo.Last();
_Redo.Remove(item);
var undoItem = _UndoHistory.Last();
_Undo.Add(undoItem);
_UndoHistory.Remove(undoItem);
foreach (var historyTile in item.Reverse())
{
_world.Tiles[historyTile.Location.X, historyTile.Location.Y] = historyTile.Tile;
_renderer.UpdateWorldImage(new PointInt32(historyTile.Location.X, historyTile.Location.Y));
}
}
}
public void ProcessUndo()
{
if (_Undo.Count > 0)
{
var item = _Undo.Last();
_Undo.Remove(item);
var redo = new Queue <HistoryTile>();
foreach (var historyTile in item.Reverse())
{
redo.Enqueue(new HistoryTile(historyTile.Location, (Tile)_world.Tiles[historyTile.Location.X, historyTile.Location.Y].Clone()));
_world.Tiles[historyTile.Location.X, historyTile.Location.Y] = historyTile.Tile;
_renderer.UpdateWorldImage(new PointInt32(historyTile.Location.X, historyTile.Location.Y));
}
_UndoHistory.Add(item);
_Redo.Add(redo.ToArray());
}
}