internal static Quaternion DoRotationHandle(RotationHandleIds ids, Quaternion rotation, Vector3 position, RotationHandleParam param)
{
var evt = Event.current;
var camForward = Handles.inverseMatrix.MultiplyVector(Camera.current != null ? Camera.current.transform.forward : Vector3.forward);
var size = HandleUtility.GetHandleSize(position);
var temp = color;
var isStatic = (!Tools.s_Hidden && EditorApplication.isPlaying && GameObjectUtility.ContainsStatic(Selection.gameObjects));
var isHot = ids.Has(GUIUtility.hotControl);
// Draw freerotation first to give it the lowest priority
if (!isStatic &&
param.ShouldShow(RotationHandleParam.Handle.XYZ) &&
(isHot && ids.xyz == GUIUtility.hotControl || !isHot))
{
color = centerColor;
rotation = UnityEditorInternal.FreeRotate.Do(ids.xyz, rotation, position, size * param.xyzSize, param.displayXYZCircle);
}
var radiusOfAxesHandles = -1f;
for (var i = 0; i < 3; ++i)
{
if (!param.ShouldShow(i))
{
continue;
}
var axisColor = GetColorByAxis(i);
color = isStatic ? Color.Lerp(axisColor, staticColor, staticBlend) : axisColor;
color = ToActiveColorSpace(color);
var axisDir = GetAxisVector(i);
var radius = size * param.axisSize[i];
radiusOfAxesHandles = Mathf.Max(radius, radiusOfAxesHandles);
rotation = UnityEditorInternal.Disc.Do(ids[i], rotation, position, rotation * axisDir, radius, true, SnapSettings.rotation, param.enableRayDrag, true, k_RotationPieColor);
}
if (radiusOfAxesHandles > 0 && evt.type == EventType.Repaint)
{
Handles.color = new Color(0, 0, 0, 0.2f);
Handles.DrawWireDisc(position, camForward, radiusOfAxesHandles);
}
if (isHot && evt.type == EventType.Repaint)
{
color = ToActiveColorSpace(s_DisabledHandleColor);
Handles.DrawWireDisc(position, camForward, size * param.axisSize[0]);
}
if (!isStatic &&
param.ShouldShow(RotationHandleParam.Handle.CameraAxis) &&
(isHot && ids.cameraAxis == GUIUtility.hotControl || !isHot))
{
color = ToActiveColorSpace(centerColor);
rotation = UnityEditorInternal.Disc.Do(ids.cameraAxis, rotation, position, camForward, size * param.cameraAxisSize, false, 0, param.enableRayDrag, true, k_RotationPieColor);
}
color = temp;
return(rotation);
}
public TransformHandleIds(PositionHandleIds position, RotationHandleIds rotation, ScaleHandleIds scale)
{
this.position = position;
this.rotation = rotation;
this.scale = scale;
}