private void UpdateVertexEditing()
{
var guiEvent = Event.current.type;
var mouseRay = Utils.GetSceneViewMouseRay();
var vertex = -1;
editObject.ppMesh.GetNearestPoint(mouseRay, out vertex, true);
if (vertex != -1)
{
var p0 = HandleUtility.WorldToGUIPoint(editObject.ppMesh.GetVertexByIndexWorld(vertex));
var p1 = Event.current.mousePosition;
var distance = (p0 - p1).sqrMagnitude;
if (distance > 30 * 30)
{
vertex = -1;
}
}
var hoverPoint = guiEvent != EventType.MouseDrag;
var handleSelected = GUIUtility.hotControl != 0;
if (handleSelected)
{
editCommand.Reset();
}
if (editCommand.IsSet(EditCommand.CommandType.Clear))
{
vertexSelection.Clear();
}
else if (editCommand.IsSet(EditCommand.CommandType.Add))
{
vertexSelection.Add(editCommand.Vertex);
if (settings.StickOverlappingPoints)
{
editObject.ppMesh.AddOverlappingVertices(vertexSelection, editCommand.Vertex);
}
}
else if (editCommand.IsSet(EditCommand.CommandType.Remove))
{
vertexSelection.Remove(editCommand.Vertex);
}
editCommand.Reset();
if (!Event.current.alt)
{
if (vertex != -1)
{
if (guiEvent == EventType.MouseDown)
{
painting = true;
}
else if (guiEvent == EventType.MouseUp || guiEvent == EventType.MouseMove)
{
painting = false;
}
// adding
if (Event.current.shift)
{
if (painting)
{
editCommand.Command |= EditCommand.CommandType.Add;
editCommand.Vertex = vertex;
}
}
// removing
else if (Event.current.control)
{
if (painting)
{
editCommand.Command |= EditCommand.CommandType.Remove;
editCommand.Vertex = vertex;
}
}
else
{
if (guiEvent == EventType.MouseDown)
{
editCommand.Command |= EditCommand.CommandType.Clear;
editCommand.Vertex = -1;
}
if (painting)
{
editCommand.Command |= EditCommand.CommandType.Add;
editCommand.Vertex = vertex;
}
}
}
else
{
if (guiEvent == EventType.MouseDown)
{
if (!Event.current.shift)
{
editCommand.Command |= EditCommand.CommandType.Clear;
}
editCommand.Vertex = -1;
multiselectStart = Event.current.mousePosition;
multiselecting = true;
}
}
}
else
{
painting = false;
multiselecting = false;
}
if (guiEvent == EventType.MouseUp)
{
OnMultiselectFinished();
}
if (handleSelected)
{
multiselecting = false;
painting = false;
}
var handleSize = HandleUtility.GetHandleSize(editObject.transform.position) * 0.1f;
foreach (var vert in vertexSelection)
{
Handles.color = handlesColorSelected;
Handles.CubeHandleCap(1, editObject.ppMesh.GetVertexByIndexWorld(vert), Quaternion.identity, handleSize, EventType.Repaint);
}
if (!handleSelected)
{
if (guiEvent == EventType.MouseUp)
{
var array = new int[vertexSelection.Count];
vertexSelection.CopyTo(array);
oldDragPos = editObject.ppMesh.GetAveragePos(array);
editObject.ppMesh.StartUpdateVerticesDelta(vertexSelection, settings.StickOverlappingPoints);
if (Tools.pivotRotation == PivotRotation.Local)
{
if (vertexSelection.Count > 0)
{
handlesRotation = editObject.ppMesh.GetLocalRotation(vertexSelection);
}
}
else
{
handlesRotation = Quaternion.identity;
}
}
}
if (guiEvent == EventType.MouseUp)
{
editObject.ppMesh.SaveUndo();
RefreshToolbar();
}
var newPos = Handles.PositionHandle(oldDragPos, handlesRotation);
if (guiEvent == EventType.MouseDrag && handleSelected)
{
if (settings.GridSnap)
{
newPos = grid.FindClosestGridPointXZ(newPos);
}
else if (settings.VertexSnap)
{
var retPos = Vector3.zero;
if (editObject.ppMesh.FindClosestPoint(newPos, vertexSelection, vertexSnapTolerance, ref retPos))
{
newPos = retPos;
}
}
var diff = editObject.ppMesh.Transform.InverseTransformPoint(newPos) - editObject.ppMesh.Transform.InverseTransformPoint(oldDragPos);
editObject.ppMesh.UpdateVerticesDelta(diff);
editObject.UpdateMesh();
}
oldDragPos = newPos;
if (!handleSelected && vertex != -1 && hoverPoint && !vertexSelection.Contains(vertex))
{
Handles.color = handlesColorHovered;
Handles.CubeHandleCap(1, editObject.ppMesh.GetVertexByIndexWorld(vertex), Quaternion.identity, handleSize, EventType.Repaint);
}
}