public static ProBuilderMesh DoMouseClick(Event evt, SelectMode selectionMode, ScenePickerPreferences pickerPreferences) { bool appendModifier = EditorHandleUtility.IsAppendModifier(evt.modifiers); bool addToSelectionModifier = EditorHandleUtility.IsSelectionAddModifier(evt.modifiers); bool addOrRemoveIfPresentFromSelectionModifier = EditorHandleUtility.IsSelectionAppendOrRemoveIfPresentModifier(evt.modifiers); bool pathSelectionModifier = EditorHandleUtility.IsSelectionPathModifier(evt.modifiers); float pickedElementDistance; if (selectionMode.ContainsFlag(SelectMode.Edge | SelectMode.TextureEdge)) { pickedElementDistance = EdgeRaycast(evt.mousePosition, pickerPreferences, k_AllowUnselected, s_Selection); } else if (selectionMode.ContainsFlag(SelectMode.Vertex | SelectMode.TextureVertex)) { pickedElementDistance = VertexRaycast(evt.mousePosition, pickerPreferences, k_AllowUnselected, s_Selection); } else { pickedElementDistance = FaceRaycast(evt.mousePosition, pickerPreferences, k_AllowUnselected, s_Selection, evt.clickCount > 1 ? -1 : 0, false); } evt.Use(); if (!appendModifier) { if (s_Selection.mesh != null) { s_Selection.mesh.ClearSelection(); } MeshSelection.SetSelection((GameObject)null); } if (pickedElementDistance > ScenePickerPreferences.maxPointerDistance) { if (appendModifier && Selection.gameObjects.Contains(s_Selection.gameObject)) { MeshSelection.RemoveFromSelection(s_Selection.gameObject); } else { MeshSelection.AddToSelection(s_Selection.gameObject); } return(null); } GameObject candidateNewActiveObject = s_Selection.gameObject; bool activeObjectSelectionChanged = Selection.gameObjects.Contains(s_Selection.gameObject) && s_Selection.gameObject != Selection.activeGameObject; if (s_Selection.mesh != null) { var mesh = s_Selection.mesh; foreach (var face in s_Selection.faces) { // Check for other editor mouse shortcuts first (todo proper event handling for mouse shortcuts) MaterialEditor matEditor = MaterialEditor.instance; if (matEditor != null && matEditor.ClickShortcutCheck(Event.current.modifiers, mesh, face)) { return(null); } UVEditor uvEditor = UVEditor.instance; if (uvEditor != null && uvEditor.ClickShortcutCheck(mesh, face)) { return(null); } var faces = mesh.faces as Face[] ?? mesh.faces.ToArray(); var ind = Array.IndexOf <Face>(faces, face); var sel = mesh.selectedFaceIndexes.IndexOf(ind); UndoUtility.RecordSelection(mesh, "Select Face"); if (sel > -1) { if (!appendModifier || addOrRemoveIfPresentFromSelectionModifier || (addToSelectionModifier && face == mesh.GetActiveFace() && !activeObjectSelectionChanged)) { mesh.RemoveFromFaceSelectionAtIndex(sel); if (addOrRemoveIfPresentFromSelectionModifier && activeObjectSelectionChanged) { candidateNewActiveObject = Selection.activeGameObject; } else if (mesh.selectedFaceCount == 0) { for (var i = MeshSelection.topInternal.Count - 1; i >= 0; i--) { if (MeshSelection.topInternal[i].selectedFaceCount > 0) { candidateNewActiveObject = MeshSelection.topInternal[i].gameObject; activeObjectSelectionChanged = true; break; } } } } else { mesh.selectedFaceIndicesInternal = mesh.selectedFaceIndicesInternal.Remove(ind); mesh.SetSelectedFaces(mesh.selectedFaceIndicesInternal.Add(ind)); } } else if (pathSelectionModifier && mesh.GetActiveFace() != null) { var pathFaces = SelectPathFaces.GetPath(mesh, Array.IndexOf <Face>(faces, mesh.GetActiveFace()), Array.IndexOf <Face>(faces, face)); foreach (var pathFace in pathFaces) { mesh.AddToFaceSelection(pathFace); } } else { mesh.AddToFaceSelection(ind); } } foreach (var edge in s_Selection.edges) { int ind = mesh.IndexOf(mesh.selectedEdges, edge); UndoUtility.RecordSelection(mesh, "Select Edge"); if (ind > -1) { if (!appendModifier || addOrRemoveIfPresentFromSelectionModifier || (addToSelectionModifier && edge == mesh.GetActiveEdge() && !activeObjectSelectionChanged)) { mesh.SetSelectedEdges(mesh.selectedEdges.ToArray().RemoveAt(ind)); if (addOrRemoveIfPresentFromSelectionModifier && activeObjectSelectionChanged) { candidateNewActiveObject = Selection.activeGameObject; } else if (mesh.selectedEdgeCount == 0) { for (var i = MeshSelection.topInternal.Count - 1; i >= 0; i--) { if (MeshSelection.topInternal[i].selectedEdgeCount > 0) { candidateNewActiveObject = MeshSelection.topInternal[i].gameObject; activeObjectSelectionChanged = true; break; } } } } else { mesh.selectedEdgesInternal = mesh.selectedEdgesInternal.Remove(edge); mesh.SetSelectedEdges(mesh.selectedEdgesInternal.Add(edge)); } } else { mesh.SetSelectedEdges(mesh.selectedEdges.ToArray().Add(edge)); } } foreach (var vertex in s_Selection.vertexes) { int ind = Array.IndexOf(mesh.selectedIndexesInternal, vertex); UndoUtility.RecordSelection(mesh, "Select Vertex"); if (ind > -1) { var sharedIndex = mesh.sharedVertexLookup[vertex]; var sharedVertex = mesh.sharedVerticesInternal[sharedIndex]; s_IndexBuffer.Clear(); foreach (var sVertex in sharedVertex) { var index = Array.IndexOf(mesh.selectedIndexesInternal, sVertex); if (index < 0) { continue; } s_IndexBuffer.Add(index); } s_IndexBuffer.Sort(); if (!appendModifier || addOrRemoveIfPresentFromSelectionModifier || (addToSelectionModifier && vertex == mesh.GetActiveVertex() && !activeObjectSelectionChanged)) { mesh.selectedIndexesInternal = mesh.selectedIndexesInternal.SortedRemoveAt(s_IndexBuffer); mesh.SetSelectedVertices(mesh.selectedIndexesInternal); if (addOrRemoveIfPresentFromSelectionModifier && activeObjectSelectionChanged) { candidateNewActiveObject = Selection.activeGameObject; } else if (mesh.selectedIndexesInternal.Length == 0) { for (var i = MeshSelection.topInternal.Count - 1; i >= 0; i--) { if (MeshSelection.topInternal[i].selectedIndexesInternal.Length > 0) { candidateNewActiveObject = MeshSelection.topInternal[i].gameObject; activeObjectSelectionChanged = true; break; } } } } else { mesh.selectedIndexesInternal = mesh.selectedIndexesInternal.SortedRemoveAt(s_IndexBuffer); mesh.SetSelectedVertices(mesh.selectedIndexesInternal.Add(vertex)); } } else { mesh.SetSelectedVertices(mesh.selectedIndexesInternal.Add(vertex)); } } if (activeObjectSelectionChanged) { MeshSelection.MakeActiveObject(candidateNewActiveObject); } else { MeshSelection.AddToSelection(candidateNewActiveObject); } return(mesh); } return(null); }