private Vector2 SetNodeRootGizmo(int index)
{
Handles.color = nodeDisplayColors[index % nodeDisplayColors.Length];
Vector2 point = spline.points[index].position;
float size = handleRootSize;
if (index == 0)
{
size *= 2;
}
if (Handles.Button(point, handleRotation, size, pickSize, Handles.DotHandleCap))
{
selectedUI = SelectedCurveType.nodeRoot;
selectedNodeIndex = index;
}
if (selectedUI == SelectedCurveType.nodeRoot && selectedNodeIndex == index)
{
EditorGUI.BeginChangeCheck();
point = Handles.DoPositionHandle(point, handleRotation);
if (EditorGUI.EndChangeCheck())
{
EditorUtility.SetDirty(spline.points[index]);
EditorUtility.SetDirty(spline);
spline.points[index].position = point;
}
}
return(point);
}
private Vector2 SetTangentGizmo(int index, SelectedCurveType requestedUI)
{
Vector2 tangent = GetTangent(spline.points[index], requestedUI);
Handles.color = nodeDisplayColors[index % nodeDisplayColors.Length];
Vector2 point = spline.points[index].transform.TransformPoint(tangent);
if (Handles.Button(point, handleRotation, handleTangentSize, pickSize, Handles.DotHandleCap))
{
selectedUI = requestedUI;
selectedNodeIndex = index;
}
if (selectedUI == requestedUI && selectedNodeIndex == index)
{
EditorGUI.BeginChangeCheck();
point = Handles.DoPositionHandle(point, handleRotation);
if (EditorGUI.EndChangeCheck())
{
EditorUtility.SetDirty(spline.points[index]);
EditorUtility.SetDirty(spline);
tangent = spline.points[index].transform.InverseTransformPoint(point);
SetTangent(index, requestedUI, tangent);
}
}
Handles.DrawLine(point, spline.points[index].transform.position);
return(point);
}
private Vector2 GetTangent(CurveNode node, SelectedCurveType type)
{
if (type == SelectedCurveType.inTangent)
{
return(node.inTangent);
}
return(node.outTangent);
}
private void SetTangent(int index, SelectedCurveType type, Vector2 value)
{
if (type == SelectedCurveType.inTangent)
{
spline.points[index].inTangent = value;
}
else
{
spline.points[index].outTangent = value;
}
}
