private void DoHandles(MapPolygon path, GUIStyle iconStyle)
{
Transform transform = path.transform;
Matrix4x4 mat = transform.localToWorldMatrix;
Matrix4x4 invMat = transform.worldToLocalMatrix;
Transform camTransform = SceneView.lastActiveSceneView.camera.transform;
Handles.color = new Color(1, 1, 1, 1);
for (int i = 0; i < path.GetVertsRaw().Count; i++)
{
// check if we want to remove points
if (Event.current.alt)
{
DoResetModeHandles(path, i, mat, invMat, camTransform);
}
else
{
DoNormalModeHandles(path, i, mat, invMat, camTransform);
}
}
if (Event.current.type == EventType.KeyDown && Event.current.keyCode == KeyCode.Delete && selectedPoints.Count > 0)
{
deleteSelected = true;
GUI.changed = true;
Event.current.Use();
}
if (deleteSelected)
{
DeleteSelected(path);
deleteSelected = false;
}
}
private void DoNormalModeHandles(MapPolygon path, int i, Matrix4x4 mat, Matrix4x4 invMat, Transform camTransform)
{
List <Vector3> pathVerts = path.GetVertsRaw();
int nextId = i == path.GetVertsRaw().Count - 1?0:i + 1;
Vector3 pos = mat.MultiplyPoint3x4(pathVerts[i]);
Vector3 posNext = mat.MultiplyPoint3x4(pathVerts[nextId]);
bool isSelected = false;
if (selectedPoints != null)
{
isSelected = selectedPoints.Contains(i);
}
// check for moving the point
Handles.DrawCapFunction cap = CapDot;
cap = isSelected ? (Handles.DrawCapFunction)CapDotSelected : (Handles.DrawCapFunction)CapDot;
Vector3 result = Handles.FreeMoveHandle(pos, Quaternion.Euler(Vector3.zero), HandleScale(pos), snap, cap);
Handles.Label(pos, i.ToString(), EditorStyles.boldLabel);
if (result != pos)
{
EnsureVertSelected(i, ref isSelected);
for (int s = 0; s < selectedPoints.Count; s++)
{
path.UpdateVerts(selectedPoints [s], invMat.MultiplyPoint3x4(result));
//pathVerts [selectedPoints [s]] = invMat.MultiplyPoint3x4 (result);
}
}
// make sure we can add new point at the midpoints!s
Vector3 mid = (pos + posNext) / 2f;
float handleScale = HandleScale(mid);
if (Handles.Button(mid, camTransform.rotation, handleScale, handleScale, CapDotPlus))
{
Vector3 pt = invMat.MultiplyPoint3x4(mid);
path.AddPointAt(nextId, pt);
}
}
private void OnEnable()
{
MapPolygon path = (MapPolygon)target;
if (path.GetVertsRaw().Count == 0)
{
path.AddPointAt(0, Vector3.zero);
path.AddPointAt(0, new Vector3(1f, 0f, 1f));
path.AddPointAt(0, Vector3.right);
path.Init();
}
selectedPoints.Clear();
LoadTextures();
}
private void DoPath(MapPolygon path)
{
Handles.color = Color.white;
List <Vector3> verts = path.GetVertsRaw();
Matrix4x4 mat = path.transform.localToWorldMatrix;
Vector3 pos;
Vector3 pos2;
for (int i = 0; i < verts.Count - 1; i++)
{
pos = mat.MultiplyPoint3x4(verts[i]);
pos2 = mat.MultiplyPoint3x4(verts[i + 1]);
Handles.DrawLine(pos, pos2);
}
//连接第一个和最后一个
pos = mat.MultiplyPoint3x4(verts[0]);
pos2 = mat.MultiplyPoint3x4(verts[verts.Count - 1]);
Handles.DrawLine(pos, pos2);
}
private void DoResetModeHandles(MapPolygon path, int i, Matrix4x4 mat, Matrix4x4 invMat, Transform camTransform)
{
List <Vector3> pathVerts = path.GetVertsRaw();
int nextId = i == pathVerts.Count - 1?i % pathVerts.Count:i + 1;
Vector3 pos = mat.MultiplyPoint3x4(pathVerts[i]);
Vector3 posNext = mat.MultiplyPoint3x4(pathVerts[nextId]);
Vector3 posStart = pos;
bool isSelected = false;
if (selectedPoints != null)
{
isSelected = selectedPoints.Contains(i);
}
float handleScale = HandleScale(posStart);
Handles.DrawCapFunction cap = (isSelected || selectedPoints.Count <= 0) ? (Handles.DrawCapFunction)CapDotMinusSelected : (Handles.DrawCapFunction)CapDotMinus;
if (Handles.Button(posStart, camTransform.rotation, handleScale, handleScale, cap))
{
EnsureVertSelected(i, ref isSelected);
deleteSelected = true;
GUI.changed = true;
}
}
private void DragSelect(MapPolygon path)
{
List <Vector3> pathVerts = path.GetVertsRaw();
if (Event.current.type == EventType.Repaint)
{
if (drag)
{
Vector3 pt1 = HandleUtility.GUIPointToWorldRay(dragStart).GetPoint(0.2f);
Vector3 pt2 = HandleUtility.GUIPointToWorldRay(Event.current.mousePosition).GetPoint(0.2f);
Vector3 pt3 = HandleUtility.GUIPointToWorldRay(new Vector2(dragStart.x, Event.current.mousePosition.y)).GetPoint(0.2f);
Vector3 pt4 = HandleUtility.GUIPointToWorldRay(new Vector2(Event.current.mousePosition.x, dragStart.y)).GetPoint(0.2f);
Handles.DrawSolidRectangleWithOutline(new Vector3[] { pt1, pt3, pt2, pt4 }, new Color(0, 0.5f, 0.25f, 0.25f), new Color(0, 0.5f, 0.25f, 0.5f));
}
}
if (Event.current.shift && Event.current.control)
{
switch (Event.current.type)
{
case EventType.MouseDrag:
SceneView.RepaintAll();
break;
case EventType.MouseMove:
SceneView.RepaintAll();
break;
case EventType.MouseDown:
if (Event.current.button != 0)
{
break;
}
dragStart = Event.current.mousePosition;
drag = true;
break;
case EventType.MouseUp:
if (Event.current.button != 0)
{
break;
}
Vector2 dragEnd = Event.current.mousePosition;
selectedPoints.Clear();
for (int i = 0; i < pathVerts.Count; i++)
{
float left = Mathf.Min(dragStart.x, dragEnd.x);
float right = Mathf.Max(dragStart.x, dragEnd.x);
float top = Mathf.Min(dragStart.y, dragEnd.y);
float bottom = Mathf.Max(dragStart.y, dragEnd.y);
Rect r = new Rect(left, top, right - left, bottom - top);
if (r.Contains(HandleUtility.WorldToGUIPoint(path.transform.TransformPoint(pathVerts[i]))))
{
selectedPoints.Add(i);
}
}
HandleUtility.AddDefaultControl(0);
drag = false;
SceneView.RepaintAll();
break;
case EventType.Layout:
HandleUtility.AddDefaultControl(GetHashCode());
break;
}
}
else if (drag == true)
{
drag = false;
Repaint();
}
}
