void AutoWeld()
{
// Automatically weld any vertices that have been brought too close together
if (primaryTargetBrush != null && selectedVertices.Count > 0)
{
float autoWeldTolerance = 0.001f;
Dictionary <Brush, List <Vertex> > refinedSelections = new Dictionary <Brush, List <Vertex> >();
foreach (PrimitiveBrush brush in targetBrushes)
{
refinedSelections.Add(brush, SelectedVerticesOfBrush(brush));
}
bool selectionCleared = false;
foreach (PrimitiveBrush brush in targetBrushes)
{
Polygon[] sourcePolygons = brush.GetPolygons().DeepCopy();
List <Vertex> allVertices = new List <Vertex>();
for (int i = 0; i < sourcePolygons.Length; i++)
{
allVertices.AddRange(sourcePolygons[i].Vertices);
}
Polygon[] newPolygons = VertexUtility.WeldNearbyVertices(autoWeldTolerance, sourcePolygons, allVertices);
if (newPolygons != null && newPolygons.Length != sourcePolygons.Length)
{
Undo.RecordObject(brush.transform, "Auto Weld Vertices");
Undo.RecordObject(brush, "Auto Weld Vertices");
if (!selectionCleared)
{
ClearSelection();
selectionCleared = true;
}
brush.SetPolygons(newPolygons);
SelectVertices(brush, newPolygons, refinedSelections[brush]);
}
}
}
}
void OnToolbarGUI(int windowID)
{
GUILayout.Label("Vertex", SabreGUILayout.GetTitleStyle());
// Button should only be enabled if there are any vertices selected
GUI.enabled = selectedVertices.Count > 0;
if (GUILayout.Button("Connect", EditorStyles.miniButton))
{
if (selectedVertices != null)
{
// Cache selection
Dictionary <Brush, List <Vertex> > refinedSelections = new Dictionary <Brush, List <Vertex> >();
foreach (PrimitiveBrush brush in targetBrushes)
{
refinedSelections.Add(brush, SelectedVerticesOfBrush(brush));
}
ClearSelection();
foreach (PrimitiveBrush brush in targetBrushes)
{
Undo.RecordObject(brush.transform, "Connect Vertices");
Undo.RecordObject(brush, "Connect Vertices");
List <Edge> newEdges;
// Polygon[] newPolygons = VertexUtility.ConnectVertices(brush.GetPolygons(), refinedSelections[brush], out newEdge);
Polygon[] newPolygons = VertexUtility.ConnectVertices(brush.GetPolygons(), refinedSelections[brush], out newEdges);
if (newPolygons != null)
{
brush.SetPolygons(newPolygons);
for (int i = 0; i < newEdges.Count; i++)
{
SelectEdges(brush, newPolygons, newEdges[i]);
}
}
}
}
}
if (GUILayout.Button("Weld Selection To Mid-Point", EditorStyles.miniButton))
{
if (selectedVertices != null)
{
Dictionary <Brush, List <Vertex> > refinedSelections = new Dictionary <Brush, List <Vertex> >();
foreach (PrimitiveBrush brush in targetBrushes)
{
refinedSelections.Add(brush, SelectedVerticesOfBrush(brush));
}
ClearSelection();
foreach (PrimitiveBrush brush in targetBrushes)
{
Undo.RecordObject(brush.transform, "Weld Vertices");
Undo.RecordObject(brush, "Weld Vertices");
Polygon[] newPolygons = VertexUtility.WeldVerticesToCenter(brush.GetPolygons(), refinedSelections[brush]);
if (newPolygons != null)
{
brush.SetPolygons(newPolygons);
}
SelectVertices(brush, newPolygons, refinedSelections[brush]);
}
}
}
EditorGUILayout.BeginHorizontal();
weldTolerance = EditorGUILayout.FloatField(weldTolerance);
if (GUILayout.Button("Weld with Tolerance", EditorStyles.miniButton))
{
if (selectedVertices != null)
{
Dictionary <Brush, List <Vertex> > refinedSelections = new Dictionary <Brush, List <Vertex> >();
foreach (PrimitiveBrush brush in targetBrushes)
{
refinedSelections.Add(brush, SelectedVerticesOfBrush(brush));
}
ClearSelection();
foreach (PrimitiveBrush brush in targetBrushes)
{
Undo.RecordObject(brush.transform, "Weld Vertices");
Undo.RecordObject(brush, "Weld Vertices");
Polygon[] newPolygons = VertexUtility.WeldNearbyVertices(weldTolerance, brush.GetPolygons(), refinedSelections[brush]);
if (newPolygons != null)
{
brush.SetPolygons(newPolygons);
}
SelectVertices(brush, newPolygons, refinedSelections[brush]);
}
}
}
EditorGUILayout.EndHorizontal();
EditorGUILayout.BeginHorizontal();
if (GUILayout.Button("Global Snap", EditorStyles.miniButton))
{
foreach (PrimitiveBrush brush in targetBrushes)
{
Undo.RecordObject(brush.transform, "Snap Vertices");
Undo.RecordObject(brush, "Snap Vertices");
}
SnapSelectedVertices(true);
}
if (GUILayout.Button("Local Snap", EditorStyles.miniButton))
{
foreach (PrimitiveBrush brush in targetBrushes)
{
Undo.RecordObject(brush.transform, "Snap Vertices");
Undo.RecordObject(brush, "Snap Vertices");
}
SnapSelectedVertices(false);
}
EditorGUILayout.EndHorizontal();
GUILayout.Label("Edge", SabreGUILayout.GetTitleStyle());
GUI.enabled = selectedEdges.Count > 0;
if (GUILayout.Button("Connect Mid-Points", EditorStyles.miniButton))
{
if (selectedEdges != null)
{
List <Edge> selectedEdgesCopy = new List <Edge>(selectedEdges);
ClearSelection();
foreach (PrimitiveBrush brush in targetBrushes)
{
Undo.RecordObject(brush.transform, "Connect Mid-Points");
Undo.RecordObject(brush, "Connect Mid-Points");
Polygon[] newPolygons;
List <Edge> newEdges;
if (EdgeUtility.SplitPolygonsByEdges(brush.GetPolygons(), selectedEdgesCopy, out newPolygons, out newEdges))
{
brush.SetPolygons(newPolygons);
for (int i = 0; i < newEdges.Count; i++)
{
SelectEdges(brush, newPolygons, newEdges[i]);
}
}
}
}
}
if (GUILayout.Button("Split", EditorStyles.miniButton))
{
if (selectedEdges != null)
{
List <KeyValuePair <Vertex, Brush> > newSelectedVertices = new List <KeyValuePair <Vertex, Brush> >();
foreach (PrimitiveBrush brush in targetBrushes)
{
Undo.RecordObject(brush.transform, "Split Edge");
Undo.RecordObject(brush, "Split Edge");
Polygon[] polygons = brush.GetPolygons();
for (int j = 0; j < selectedEdges.Count; j++)
{
// First check if this edge actually belongs to the brush
Brush parentBrush = selectedVertices[selectedEdges[j].Vertex1];
if (parentBrush == brush)
{
for (int i = 0; i < polygons.Length; i++)
{
Vertex newVertex;
if (EdgeUtility.SplitPolygonAtEdge(polygons[i], selectedEdges[j], out newVertex))
{
newSelectedVertices.Add(new KeyValuePair <Vertex, Brush>(newVertex, brush));
}
}
}
}
brush.Invalidate(true);
}
ClearSelection();
for (int i = 0; i < newSelectedVertices.Count; i++)
{
Brush brush = newSelectedVertices[i].Value;
Vertex vertex = newSelectedVertices[i].Key;
SelectVertices(brush, brush.GetPolygons(), new List <Vertex>()
{
vertex
});
}
}
}
}
List <PrimitiveBrush> AutoWeld()
{
// Track the brushes that welding has changed
List <PrimitiveBrush> changedBrushes = new List <PrimitiveBrush>();
// Automatically weld any vertices that have been brought too close together
if (primaryTargetBrush != null && selectedVertices.Count > 0)
{
float autoWeldTolerance = 0.001f;
Dictionary <Brush, List <Vertex> > refinedSelections = new Dictionary <Brush, List <Vertex> >();
foreach (PrimitiveBrush brush in targetBrushes)
{
refinedSelections.Add(brush, SelectedVerticesOfBrush(brush));
}
bool selectionCleared = false;
foreach (PrimitiveBrush brush in targetBrushes)
{
Polygon[] sourcePolygons = brush.GetPolygons();
// Make a copy so that we can differentiate newPolygons from the original, since welding updates affected polygons in place
Polygon[] sourcePolygonsCopy = sourcePolygons.DeepCopy();
List <Vertex> allVertices = new List <Vertex>();
for (int i = 0; i < sourcePolygonsCopy.Length; i++)
{
allVertices.AddRange(sourcePolygonsCopy[i].Vertices);
}
Polygon[] newPolygons = VertexUtility.WeldNearbyVertices(autoWeldTolerance, sourcePolygonsCopy, allVertices);
bool hasChanged = false;
if (newPolygons.Length != sourcePolygons.Length)
{
hasChanged = true;
}
if (!hasChanged)
{
for (int i = 0; i < sourcePolygons.Length; i++)
{
if (sourcePolygons[i].Vertices.Length != newPolygons[i].Vertices.Length)
{
hasChanged = true;
break;
}
}
}
if (hasChanged)
{
Undo.RecordObject(brush.transform, "Auto Weld Vertices");
Undo.RecordObject(brush, "Auto Weld Vertices");
if (!selectionCleared)
{
ClearSelection();
selectionCleared = true;
}
brush.SetPolygons(newPolygons);
SelectVertices(brush, newPolygons, refinedSelections[brush]);
// Brush has changed so mark it to be returned
changedBrushes.Add(brush);
}
}
}
// Return the brushes that welding has changed
return(changedBrushes);
}