/// <summary>
/// Creates a clipboard object that holds the clone of relevant terrain data
/// </summary>
/// <param name="selection">Selection to clone. Can be null to use TerrainEditor.CurrentSelection</param>
/// <returns>The clipboard data object</returns>
public ITerrainClipboardObject CopySelection(TerrainSelection selection)
{
if (!HasEngineInstance())
return null;
if (selection == null)
selection = TerrainEditor.CurrentSelection;
if (selection == null || !selection.Valid)
return null;
ITerrainClipboardObject data = EngineTerrain.CopySelection(selection);
// add shapes to clone
if ((selection.SelectionFilter & TerrainSelection.SelectionFilter_e.Shapes) != 0)
{
ShapeCollection shapesOnTerrain = new ShapeCollection();
ShapeCollection roots = EditorManager.Scene.RootShapes;
Rectangle2D rect = selection.WorldSpaceExtent;
foreach (ShapeBase root in roots)
AddShapesRecursive(shapesOnTerrain, root, rect);
if (shapesOnTerrain.Count > 0)
{
data.ShapesToPaste = shapesOnTerrain.CloneForClipboard();
// remap position xy to [0..1] range inside the selection
float fInvX = 1.0f / rect.GetSizeX();
float fInvY = 1.0f / rect.GetSizeY();
foreach (Shape3D shape in data.ShapesToPaste)
shape.Position = new Vector3F((shape.x - rect.X1) * fInvX, (shape.y - rect.Y1) * fInvY, shape.z);
}
}
return data;
}