void DrawTree()
{
if (!_hasTarget)
{
var oldBg = GUI.backgroundColor;
GUI.backgroundColor = ColorHelper.ByRGBA(200, 200, 200, 150);
var rect = CanvasRect;
rect.width = 300;
rect.height = 100;
rect.x = (CanvasRect.width - rect.width) * .5f;
rect.y = (CanvasRect.height - rect.height) * .5f;
var style = new GUIStyle(EditorStyles.helpBox)
{
fontSize = 16,
alignment = TextAnchor.MiddleCenter,
richText = true,
};
GUI.Box(rect, "选中的对象上没有行为树\n<i><size=14>当然也就没法编辑了</size></i>", style);
GUI.backgroundColor = oldBg;
return;
}
if (_treeData == null)
{
return;
}
GUI.BeginClip(CanvasRect);
// draw windows
BeginWindows();
DrawNodeRecrusively(_treeData.rootNode, null, 0, 0, _tree._frameResult);
EndWindows();
GUI.EndClip();
}
