public void OnSceneGUI()
{
Handle handle = target as Handle;
if (!handle.enabled)
{
return;
}
float size = HandleUtility.GetHandleSize(handle.pos);
Transform handleTransform = handle.transform;
Quaternion handleRotation = Tools.pivotRotation == PivotRotation.Local ? handleTransform.rotation : Quaternion.identity;
Event e = Event.current;
bool deletePressed = (e.type == EventType.KeyDown && (Event.current.keyCode == KeyCode.Backspace));
Vector3 p = handleTransform.TransformPoint(Vector3.zero);
Vector3 c1 = handleTransform.TransformPoint(handle.control1);
Vector3 c2 = handleTransform.TransformPoint(handle.control2);
if (handle.mode != Handle.Mode.Rounded)
{
Handles.color = modeColors[(int)handle.mode];
Handles.DrawLine(p, c1);
if (Handles.Button(c1, handleRotation, size * 0.05f, size * 0.05f, Handles.DotHandleCap))
{
selectedHandle = 1;
}
Handles.DrawLine(p, c2);
if (Handles.Button(c2, handleRotation, size * 0.05f, size * 0.05f, Handles.DotHandleCap))
{
selectedHandle = 2;
}
}
if (selectedHandle == 0)
{
// use standard editor tools
Tools.hidden = false;
}
else
{
Tools.hidden = true;
Handles.color = Color.HSVToRGB(0, 0, 0.8f);
if (Handles.Button(p, handleRotation, size * 0.05f, size * 0.05f, Handles.DotHandleCap))
{
selectedHandle = 0;
}
if (selectedHandle == 1)
{
if (deletePressed)
{
Undo.RecordObject(handle, "Delete Control 1");
handle.mode = Handle.Mode.Free;
handle.control1 = Vector3.zero;
EditorUtility.SetDirty(handle);
selectedHandle = 0;
}
EditorGUI.BeginChangeCheck();
c1 = Handles.DoPositionHandle(c1, handleRotation);
if (EditorGUI.EndChangeCheck())
{
Undo.RecordObject(handle, "Move Control 1");
handle.control1 = handleTransform.InverseTransformPoint(c1);
EditorUtility.SetDirty(handle);
}
}
else
{
if (deletePressed)
{
Undo.RecordObject(handle, "Delete Control 2");
handle.mode = Handle.Mode.Free;
handle.control2 = Vector3.zero;
EditorUtility.SetDirty(handle);
selectedHandle = 0;
}
EditorGUI.BeginChangeCheck();
c2 = Handles.DoPositionHandle(c2, handleRotation);
if (EditorGUI.EndChangeCheck())
{
Undo.RecordObject(handle, "Move Control 2");
handle.control2 = handleTransform.InverseTransformPoint(c2);
EditorUtility.SetDirty(handle);
}
}
}
}