/// <summary>
/// main method it will be called when the cursor in the scene view
/// most of the functionality is in here
/// </summary>
void OnSceneGUI()
{
if (spline)
{
Undo.RecordObject(spline, "Spline edit");
}
#region Init
//getting spline asset from the SplineWindow object
splineWindow = (SplineWindow)target;
spline = splineWindow.spline;
if (!splineWindow)
{
return;
}
if (!spline && splineWindow)
{
DestroyImmediate(spline);
splineWindow.spline = Spline.CreateSpline(splineWindow.splineRefernce);
splineWindow.SetWorldPositions();
if (SplineTools.Instance)
{
SplineTools.Instance.Repaint();
}
if (!spline)
{
return;
}
}
CheckSelection();
//make sure to follow parent when nothing is selected
if (selectedPoint == -1)
{
splineWindow.SetWorldPositions();
//make sure that the main handle shows up when nothing is selected
DefaultHandles.Hidden = false;
}
else
{
DefaultHandles.Hidden = hideDefaultHandles;
}
SetCurrPositions();
#endregion
#region drawing points
if (selectedPoints.Count > 1)
{
CalculateCenterPos();
}
bool setWorldPos = true;
bool setLocalPos = false;
for (int i = 0; i < spline.Length; i++)
{
Handles.color = splineWindow.pointColor;
if (!hideArrows)
{
DrawArrow(i);
}
#region unselected points
//draw points ( main )
Vector3 pos = spline.GetPosition(i);
if (currPos[i] != pos)
{
Undo.RecordObject(spline, "Move point");
}
List <Vector3> handles = new List <Vector3>(spline[i].handles);
Handles.color = splineWindow.pointColor;
float size = HandleUtility.GetHandleSize(pos);
if (!InSelection(i))
{
// point ( main ) pressed
if (Handles.Button(pos, Quaternion.identity, size / 5, size / 5, Handles.SphereCap))
{
SelectPoint(i);
}
//draw points ( handles )
if (!hideHandles)
{
Handles.color = splineWindow.handlesColor;
foreach (Vector3 h in handles)
{
size = HandleUtility.GetHandleSize(h);
size *= 0.5f;
// point ( handles ) pressed
if (Handles.Button(h, Quaternion.identity, size / 5, size / 5, Handles.CubeCap))
{
SelectPoint(i);
}
//drawing the blue lines between main point and handle point
Handles.DrawLine(pos, h);
}
}
}
#endregion
#region selected points
// moving selected point
if (InSelection(i))
{
// hold the position to know later if it got changed
Vector3 temp = pos;
Vector3 hTemp = Vector3.zero;
// drawing points when multiple are selected
if (selectedPoints.Count > 1)
{
Handles.color = splineWindow.selectedColor;
if (Handles.Button(pos, Quaternion.identity, size / 4, size / 4, Handles.SphereCap))
{
// removes the point from selection or remove other points
if (Event.current.shift)
{
selectedPoints.Remove(i);
}
else
{
SelectPoint(i);
}
}
pos += centerDelta;
}
else
{
switch (Tools.current)
{
case Tool.Rotate:
rotation = Handles.DoRotationHandle(rotation, pos);
Handles.SphereCap(0, pos, Quaternion.identity, size / 5);
if (rotation != Quaternion.identity)
{
for (int h = 0; h < handles.Count; h++)
{
if (handleStartPositions.Count > h)
{
handles[h] = rotation * (handleStartPositions[h] - pos);
handles[h] += pos;
}
}
}
else
{
handleStartPositions = new List <Vector3>(handles);
}
scale = 1;
break;
case Tool.Scale:
Vector3 s = new Vector3(scale, 1, 1);
s = Handles.DoScaleHandle(s, pos, Quaternion.identity, size);
scale = s.x;
if (scale != 1)
{
for (int h = 0; h < handles.Count; h++)
{
if (handleStartPositions.Count > h)
{
handles[h] = handleStartPositions[h] + (handleStartPositions[h] - pos).normalized * (scale - 1);
}
}
}
else
{
handleStartPositions = new List <Vector3>(handles);
}
rotation = Quaternion.identity;
break;
default:
if (isDragMode)
{
Handles.color = splineWindow.selectedColor;
pos = Handles.FreeMoveHandle(pos, Quaternion.identity, size / 4, Vector3.zero, Handles.SphereCap);
}
else
{
pos = Handles.PositionHandle(pos, Quaternion.identity);
Handles.color = splineWindow.selectedColor;
Handles.SphereCap(0, pos, Quaternion.identity, size / 4);
}
scale = 1;
rotation = Quaternion.identity;
break;
}
}
//checking if our pos changed to reset the values
if (temp != pos)
{
setLocalPos = true;
setWorldPos = false;
}
if (Tools.current != Tool.Rotate && Tools.current != Tool.Scale)
{
MoveHandlesWithPoint(i, pos, handles);
if (!hideHandles)
{
for (int a = 0; a < handles.Count; a++)
{
hTemp = handles[a];
if (isDragMode)
{
Handles.color = splineWindow.handlesColor;
Vector3 tempHandles = Handles.FreeMoveHandle(handles[a], Quaternion.identity, size / 7, Vector3.zero, Handles.CubeCap);
handles[a] = tempHandles;
}
else
{
Handles.color = splineWindow.handlesColor;
handles[a] = Handles.PositionHandle(handles[a], Quaternion.identity);
Handles.CubeCap(0, handles[a], Quaternion.identity, size / 7);
}
if (hTemp != handles[a])
{
setLocalPos = true;
setWorldPos = false;
}
Handles.DrawLine(pos, handles[a]);
}
}
}
else if (!hideHandles)
{
foreach (Vector3 handle in handles)
{
Handles.CubeCap(0, handle, Quaternion.identity, size / 7);
Handles.DrawLine(pos, handle);
if (hTemp != handle)
{
setLocalPos = true;
setWorldPos = false;
}
}
}
}
currPos[i] = pos;
#endregion
//reassign values
spline[i].handles = handles.ToArray();
spline[i].position = pos;
if (showIndex)
{
GUIStyle style = new GUIStyle();
style.normal.textColor = Color.grey;
style.fontSize = 20;
Handles.Label(spline[i].position, i.ToString(), style);
}
}
if (setLocalPos)
{
splineWindow.SetLocalPositions();
}
if (setWorldPos)
{
splineWindow.SetWorldPositions();
}
#endregion
#region insert point
// insert by clicking on some collider
if (Event.current.control == SplinePrefs.addPointMouse.ctrl && Event.current.alt == SplinePrefs.addPointMouse.alt && Event.current.shift == SplinePrefs.addPointMouse.shift)
{
//making clicking with left click on objects disabled
HandleUtility.AddDefaultControl(GUIUtility.GetControlID(FocusType.Passive));
if (spline.Length == 0 || selectedPoint >= 0)
{
if (Event.current.clickCount == 1)
{
Ray ray = HandleUtility.GUIPointToWorldRay(Event.current.mousePosition);
RaycastHit hit;
if (Physics.Raycast(ray, out hit))
{
Insert(hit.point);
splineWindow.SetLocalPositions();
}
}
}
}
if (spline.IsValid(selectedPoint))
{
//insert by a shortcut
if (Event.current.keyCode == SplinePrefs.addPointKeyboard.keyCode && Event.current.shift && Event.current.type == EventType.KeyDown)
{
Insert(spline[selectedPoint].position + Vector3.forward);
splineWindow.SetLocalPositions();
}
}
#endregion
#region keyboard actions
// sticking to ground
if (HotkeyPressed(SplinePrefs.stickToGround) && selectedPoint != -1)
{
Undo.RecordObject(splineWindow, "stick to ground");
foreach (int i in selectedPoints)
{
StickToGround(i);
}
}
// drawing line
if (HotkeyPressed(SplinePrefs.drawLine) && selectedPoints.Count == 2)
{
spline.DrawLine(selectedPoints[0], selectedPoints[1]);
}
// remove point
if (HotkeyPressed(SplinePrefs.removePoint))
{
foreach (int i in selectedPoints)
{
spline.RemovePoint(i);
}
splineWindow.SetLocalPositions();
selectedPoints = new List <int>();
}
if (HotkeyPressed(SplinePrefs.sharpen))
{
Undo.RecordObject(spline, "Sharpen");
foreach (int i in selectedPoints)
{
spline.Sharpen(i);
splineWindow.SetLocalPositions();
SceneView.RepaintAll();
}
}
#endregion
#region others
SplineMesh sm = splineWindow.GetComponent <SplineMesh>();
if (sm != null)
{
sm.UpdatePosition();
}
if (Event.current.commandName == "UndoRedoPerformed")
{
Repaint();
}
#endregion
}
/// <summary>
/// make a point stick to ground bu any given index
/// </summary>
public void StickToGround(int i)
{
Waypoint wp = splineWindow.spline[i];
disableHandleMoving = true;
int index = -1;
int tIndex = -1;
Ray ray = new Ray(wp.position + Vector3.up * 5, Vector3.down);
RaycastHit[] hits = Physics.RaycastAll(ray);
for (int x = 0; x < hits.Length; x++)
{
if (!hits[x].collider.isTrigger)
{
index = x;
break;
}
else
{
tIndex = x;
}
}
if (index == -1 && tIndex != -1)
{
index = tIndex;
}
if (index != -1)
{
wp.position = hits[index].point;
splineWindow.SetLocalPositions();
EditorUtility.SetDirty(splineWindow.spline);
}
for (int h = 0; h < wp.handles.Length; h++)
{
ray = new Ray(wp.handles[h] + Vector3.up * 5, Vector3.down);
hits = Physics.RaycastAll(ray);
index = -1;
tIndex = -1;
for (int x = 0; x < hits.Length; x++)
{
if (!hits[x].collider.isTrigger)
{
index = x;
break;
}
else
{
tIndex = x;
}
}
if (index == -1 && tIndex != -1)
{
index = tIndex;
}
if (index != -1)
{
wp.handles[h] = hits[index].point;
splineWindow.SetLocalPositions();
EditorUtility.SetDirty(splineWindow.spline);
}
}
}
void OnGUI()
{
#region checkers
if (Selection.activeGameObject == null)
{
NotSelectedOptions();
return;
}
SplineWindow splineWindow = Selection.activeGameObject.GetComponent <SplineWindow>();
if (splineWindow == null)
{
NotSelectedOptions();
return;
}
Spline spline = splineWindow.spline;
SplineEditor splineEditor = SplineEditor.current;
if (spline == null || splineEditor == null)
{
NotSelectedOptions();
return;
}
#endregion
scrollView = GUILayout.BeginScrollView(scrollView);
#region buttons
if (GUILayout.Button("Show/Hide", GUILayout.Width(WIDTH), GUILayout.Height(HEIGHT / 2)))
{
if (showHidePopup != null)
{
showHidePopup.Close();
showHidePopup = null;
}
else
{
showHidePopup = ShowHidePopUp.CreateInstance <ShowHidePopUp>();
showHidePopup.ShowPopup();
showHidePopup.position = new Rect(Event.current.mousePosition.x + position.x, Event.current.mousePosition.y + position.y, 100, (HEIGHT / 2) * 3);
}
}
if (GUILayout.Button("Deselect\nAll", GUILayout.Width(WIDTH), GUILayout.Height(HEIGHT / 2)))
{
splineEditor.selectedPoints = new List <int>();
splineEditor.Repaint();
SceneView.RepaintAll();
}
if (GUILayout.Button("Center\nPivot", GUILayout.Width(WIDTH), GUILayout.Height(HEIGHT / 2)))
{
splineEditor.CenterOnChildern();
SceneView.RepaintAll();
}
if (GUILayout.Button(splineEditor.isDragMode ? "use\nhandles" : "use\ndrag", GUILayout.Width(WIDTH), GUILayout.Height(HEIGHT / 2)))
{
splineEditor.isDragMode = !splineEditor.isDragMode;
EditorPrefs.SetBool(SplineEditor.IS_DRAG_MODE_KEY, splineEditor.isDragMode);
SceneView.RepaintAll();
}
GUILayout.BeginHorizontal();
if (GUILayout.Button(new GUIContent(delete, "Delets all points in spline"), GUILayout.Width(WIDTH / 2), GUILayout.Height(HEIGHT / 2)))
{
spline.waypoints = new Waypoint[] { };
splineEditor.Repaint();
SceneView.RepaintAll();
}
GUILayout.Space(-5);
if (GUILayout.Button(new GUIContent(reload, "Reloads the spline"), GUILayout.Width(WIDTH / 2), GUILayout.Height(HEIGHT / 2)))
{
Undo.RecordObject(splineWindow.spline, "Undo reload");
splineEditor.selectedPoints = new List <int>();
splineWindow.spline = Spline.CreateSpline(splineWindow.splineRefernce);
splineEditor.Repaint();
SceneView.RepaintAll();
}
GUILayout.EndHorizontal();
GUILayout.BeginHorizontal();
if (!splineWindow.splineRefernce.Equals(spline))
{
GUI.color = Color.red;
}
if (GUILayout.Button(new GUIContent(save, "Saves the spline"), GUILayout.Width(WIDTH / 2), GUILayout.Height(HEIGHT / 2)))
{
splineEditor.Save();
}
GUI.color = Color.white;
GUILayout.Space(-5);
if (GUILayout.Button(new GUIContent(saveAs, "Save the spline in new path"), GUILayout.Width(WIDTH / 2), GUILayout.Height(HEIGHT / 2)))
{
//ScriptableObjectUtility.CreateAsset<Spline>();
Spline temp = Spline.CreateSpline();
string assetName = AssetDatabase.GenerateUniqueAssetPath("Assets/" + splineWindow.splineRefernce.name + "_Copy.asset");
AssetDatabase.CreateAsset(temp, assetName);
Selection.activeObject = temp;
AssetDatabase.SaveAssets();
//temp.name = sw.splineRefernce.name + "_Copy";
splineWindow.splineRefernce = temp;
splineEditor.Save();
}
GUILayout.EndHorizontal();
if (GUILayout.Button("stick to \n ground", GUILayout.Width(WIDTH), GUILayout.Height(HEIGHT / 2)))
{
Undo.RecordObject(spline, "stick to ground");
for (int i = 0; i < spline.Length; i++)
{
splineEditor.StickToGround(i);
}
SceneView.RepaintAll();
}
//clean button
if (GUILayout.Button("Clean", GUILayout.Width(WIDTH), GUILayout.Height(HEIGHT / 2)))
{
Undo.RecordObject(spline, "Clean");
spline.CleanSpline();
splineEditor.Repaint();
SceneView.RepaintAll();
}
if (splineEditor.selectedPoints.Count < 1)
{
GUI.enabled = false;
}
if (GUILayout.Button("Sharpen", GUILayout.Width(WIDTH), GUILayout.Height(HEIGHT / 2)))
{
Undo.RecordObject(spline, "Sharpen");
foreach (int i in splineEditor.selectedPoints)
{
spline.Sharpen(i);
splineWindow.SetLocalPositions();
SceneView.RepaintAll();
}
}
GUI.enabled = true;
#endregion
#region buttons when 2 points are selected
if (splineEditor.selectedPoints.Count != 2)
{
GUI.enabled = false;
}
if (GUILayout.Button(drawLine, GUILayout.Width(WIDTH), GUILayout.Height(HEIGHT)))
{
spline.DrawLine(splineEditor.selectedPoints[0], splineEditor.selectedPoints[1]);
splineWindow.SetLocalPositions();
splineEditor.Repaint();
SceneView.RepaintAll();
}
// addpoint between button
if (GUILayout.Button("subdivide", GUILayout.Width(WIDTH), GUILayout.Height(HEIGHT / 2)))
{
spline.Subdivide(splineEditor.selectedPoints[0], splineEditor.selectedPoints[1]);
splineWindow.SetLocalPositions();
splineEditor.Repaint();
SceneView.RepaintAll();
}
if (GUILayout.Button("Merge", GUILayout.Width(WIDTH), GUILayout.Height(HEIGHT / 2)))
{
spline.Merge(splineEditor.selectedPoints[0], splineEditor.selectedPoints[1]);
splineWindow.SetLocalPositions();
splineEditor.Repaint();
SceneView.RepaintAll();
}
if (GUILayout.Button("Remove\nline", GUILayout.Width(WIDTH), GUILayout.Height(HEIGHT / 2)))
{
spline.RemoveLine(splineEditor.selectedPoints[0], splineEditor.selectedPoints[1]);
splineWindow.SetLocalPositions();
splineEditor.Repaint();
SceneView.RepaintAll();
}
#endregion
GUILayout.EndScrollView();
}