protected void DrawControlPoint(int i, bool selected)
{
ObiCurve.ControlPoint cp = spline.controlPoints[i];
float size = HandleUtility.GetHandleSize(cp.position) * 0.04f;
if (selected && !orientControlPointsMode)
{
Handles.color = handleColor;
if (!(i == 0 && !spline.closed))
{
if (Event.current.type == EventType.Repaint)
{
Handles.DrawDottedLine(cp.GetInTangent(), cp.position, 2);
}
EditorGUI.BeginChangeCheck();
Vector3 newTangent = Handles.FreeMoveHandle(cp.GetInTangent(), Quaternion.identity, size, Vector3.zero, Handles.DotHandleCap);
if (EditorGUI.EndChangeCheck())
{
Undo.RecordObject(spline, "Modify tangent");
spline.controlPoints[i] = cp.SetInTangent(newTangent);
}
}
if (!(i == spline.controlPoints.Count - 1 && !spline.closed))
{
if (Event.current.type == EventType.Repaint)
{
Handles.DrawDottedLine(cp.GetOutTangent(), cp.position, 2);
}
EditorGUI.BeginChangeCheck();
Vector3 newTangent = Handles.FreeMoveHandle(cp.GetOutTangent(), Quaternion.identity, size, Vector3.zero, Handles.DotHandleCap);
if (EditorGUI.EndChangeCheck())
{
Undo.RecordObject(spline, "Modify tangent");
spline.controlPoints[i] = cp.SetOutTangent(newTangent);
}
}
}
if (Event.current.type == EventType.Repaint)
{
Handles.color = selected ? handleColor : Color.white;
if (orientControlPointsMode)
{
Handles.ArrowHandleCap(0, cp.position, Quaternion.LookRotation(cp.normal), HandleUtility.GetHandleSize(cp.position), EventType.Repaint);
}
Handles.SphereHandleCap(0, cp.position, Quaternion.identity, size * 3, EventType.Repaint);
}
}
protected void RotateTool(List <ObiCurve.ControlPoint> controlPoints, Vector3 handlePosition, Quaternion handleRotation)
{
EditorGUI.BeginChangeCheck();
// TODO: investigate weird rotation gizmo:
Quaternion newRotation = Handles.RotationHandle(prevRot, handlePosition);
if (EditorGUI.EndChangeCheck())
{
Quaternion delta = newRotation * Quaternion.Inverse(prevRot);
prevRot = newRotation;
Undo.RecordObject(spline, "Rotate control point");
if (Tools.pivotMode == PivotMode.Center)
{
// Rotate all selected control points around their average:
for (int i = 0; i < controlPoints.Count; ++i)
{
if (selectedStatus[i])
{
Vector3 newPos = handlePosition + delta * (controlPoints[i].position - handlePosition);
controlPoints[i] = controlPoints[i].Transform(newPos - controlPoints[i].position, Quaternion.identity);
}
}
}
else
{
// Rotate all handles of selected control points around their control point:
for (int i = 0; i < controlPoints.Count; ++i)
{
if (selectedStatus[i])
{
ObiCurve.ControlPoint cp = controlPoints[i];
cp.inTangent = delta * cp.inTangent;
cp.outTangent = delta * cp.outTangent;
controlPoints[i] = cp;
}
}
}
}
}
protected void ScaleTool(List <ObiCurve.ControlPoint> controlPoints, Vector3 handlePosition, Quaternion handleRotation)
{
EditorGUI.BeginChangeCheck();
Vector3 scale = Handles.ScaleHandle(prevScale, handlePosition, handleRotation, HandleUtility.GetHandleSize(handlePosition));
if (EditorGUI.EndChangeCheck())
{
Vector3 deltaScale = new Vector3(scale.x / prevScale.x, scale.y / prevScale.y, scale.z / prevScale.z);
prevScale = scale;
Undo.RecordObject(spline, "Scale control point");
if (Tools.pivotMode == PivotMode.Center)
{
for (int i = 0; i < controlPoints.Count; ++i)
{
if (selectedStatus[i])
{
Vector3 newPos = handlePosition + Vector3.Scale(controlPoints[i].position - handlePosition, deltaScale);
controlPoints[i] = controlPoints[i].Transform(newPos - controlPoints[i].position, Quaternion.identity);
}
}
}
else
{
// Scale all handles of selected control points relative to their control point:
for (int i = 0; i < controlPoints.Count; ++i)
{
if (selectedStatus[i])
{
ObiCurve.ControlPoint cp = controlPoints[i];
cp.inTangent = Vector3.Scale(controlPoints[i].inTangent, deltaScale);
cp.outTangent = Vector3.Scale(controlPoints[i].outTangent, deltaScale);
controlPoints[i] = cp;
}
}
}
}
}
protected void OrientTool(List <ObiCurve.ControlPoint> controlPoints, Vector3 averagePos, Quaternion pivotRotation)
{
EditorGUI.BeginChangeCheck();
Quaternion newRotation = Handles.RotationHandle(prevRot, averagePos);
if (EditorGUI.EndChangeCheck())
{
Quaternion delta = newRotation * Quaternion.Inverse(prevRot);
prevRot = newRotation;
Undo.RecordObject(spline, "Orient control point");
// Rotate all selected control points around their average:
for (int i = 0; i < controlPoints.Count; ++i)
{
if (selectedStatus[i])
{
ObiCurve.ControlPoint cp = controlPoints[i];
cp.normal = delta * cp.normal;
controlPoints[i] = cp;
}
}
}
}
protected void DrawUIWindow(int windowID)
{
GUILayout.BeginHorizontal();
addControlPointsMode = GUILayout.Toggle(addControlPointsMode, new GUIContent(Resources.Load <Texture2D>("AddControlPoint"), "Add CPs"), "Button", GUILayout.MaxHeight(24), GUILayout.Width(42));
if (GUILayout.Button(new GUIContent(Resources.Load <Texture2D>("RemoveControlPoint"), "Remove selected CPs"), GUILayout.MaxHeight(24), GUILayout.Width(42)))
{
Undo.RecordObject(spline, "Remove control point");
for (int i = spline.controlPoints.Count - 1; i >= 0; --i)
{
if (selectedStatus[i])
{
spline.controlPoints.RemoveAt(i);
}
}
for (int i = 0; i < selectedStatus.Length; ++i)
{
selectedStatus[i] = false;
}
ResizeCPArrays();
}
orientControlPointsMode = GUILayout.Toggle(orientControlPointsMode, new GUIContent(Resources.Load <Texture2D>("OrientControlPoint"), "Orient CPs"), "Button", GUILayout.MaxHeight(24), GUILayout.Width(42));
GUILayout.EndHorizontal();
EditorGUI.showMixedValue = false;
ObiCurve.ControlPoint.BezierCPMode mode = ObiCurve.ControlPoint.BezierCPMode.Free;
bool firstSelected = true;
for (int i = 0; i < spline.controlPoints.Count; ++i)
{
if (selectedStatus[i])
{
if (firstSelected)
{
mode = spline.controlPoints[i].tangentMode;
firstSelected = false;
}
else if (mode != spline.controlPoints[i].tangentMode)
{
EditorGUI.showMixedValue = true;
break;
}
}
}
EditorGUI.BeginChangeCheck();
ObiCurve.ControlPoint.BezierCPMode newMode = (ObiCurve.ControlPoint.BezierCPMode)EditorGUILayout.EnumPopup(mode, GUI.skin.FindStyle("DropDown"));
EditorGUI.showMixedValue = false;
if (EditorGUI.EndChangeCheck())
{
Undo.RecordObject(spline, "Change control points mode");
for (int i = 0; i < spline.controlPoints.Count; ++i)
{
if (selectedStatus[i])
{
ObiCurve.ControlPoint cp = spline.controlPoints[i];
cp.tangentMode = newMode;
spline.controlPoints[i] = cp;
}
}
}
}