// When moving an edge/vertex we want to keep using the original mesh since we might be collapsing polygons
// when snapping vertices/edges together. If we always use the current mesh then we'd suddenly may be moving
// something else than we started out with. When we're done with the movement and release the mouse we want
// this to become permanent however, and that's what this method does.
void CommitChanges()
{
if (!generatorModified)
{
return;
}
var activeGenerators = activeOutlines.Keys.ToArray();
Undo.RecordObjects(activeGenerators, activeGenerators.Length == 1 ? "Modified brush" : "Modified brushes");
// Remove redundant vertices and fix the selection so that the correct edges/vertices etc. are selected
foreach (var generator in activeGenerators)
{
var outline = activeOutlines[generator];
// We remove redundant vertices here since in editableOutline we make the assumption that the vertices
// between the original and the 'fixed' brushMesh are identical.
// This makes it a lot easier to find 'soft edges'.
outline.vertexRemap = generator.definition.brushOutline.RemoveUnusedVertices();
ChiselEditableOutline.RemapSelection(generator.definition.brushOutline, outline.selection, outline.vertexRemap, outline.edgeRemap, outline.polygonRemap);
}
// Create new outlines for our generators
foreach (var generator in activeGenerators)
{
activeOutlines[generator] = new ChiselEditableOutline(generator);
}
generatorModified = false;
}
protected override void OnUndoRedoPerformed()
{
var activeGenerators = activeOutlines.Keys.ToArray();
foreach (var generator in activeGenerators)
{
generator.definition.brushOutline.Validate();
generator.definition.brushOutline.CalculatePlanes();
activeOutlines[generator] = new ChiselEditableOutline(generator);
UpdateEditableOutline(generator);
}
}
protected override void OnGeneratorSelected(ChiselBrush generator)
{
if (generator.definition.IsValid)
{
CommitChanges();
}
else
{
CancelChanges();
}
activeOutlines[generator] = new ChiselEditableOutline(generator);
}
protected override void OnUndoRedoPerformed()
{
CommitChanges();
// TODO: do we actually need this?
var activeGenerators = activeOutlines.Keys.ToArray();
foreach (var generator in activeGenerators)
{
generator.definition.brushOutline.Validate();
generator.definition.brushOutline.CalculatePlanes();
activeOutlines[generator] = new ChiselEditableOutline(generator);
}
}
void CancelChanges()
{
if (!generatorModified)
{
return;
}
generatorModified = false;
var activeGenerators = activeOutlines.Keys.ToArray();
foreach (var generator in activeGenerators)
{
activeOutlines[generator] = new ChiselEditableOutline(generator);
}
UndoAllChanges();
}
