/// <summary>
/// Undo a deformation and push onto another stack.
/// </summary>
/// <param name="undoInfo">Undo info.</param>
private void UndoDeformation(UndoInfo undoInfo, Stack <UndoInfo> pushTo)
{
// Get terrain editor reference
TerrainEditor terrainEditor = undoInfo.TerrainDeformInfo.TerrainEditor;
// Get current terrain deformation
TerrainDeformUndoInfo?liveData = terrainEditor.GetHeightMapUndo(
undoInfo.TerrainDeformInfo.TerrainComponent,
undoInfo.TerrainDeformInfo.Position.X,
undoInfo.TerrainDeformInfo.Position.Y,
undoInfo.TerrainDeformInfo.Dimension);
// Perform undo operation
terrainEditor.RestoreHeightMapUndo(undoInfo.TerrainDeformInfo);
// Push last value on redo stack if valid
if (liveData != null)
{
// Push onto stack
undoInfo.TerrainDeformInfo = liveData.Value;
pushTo.Push(undoInfo);
}
}