Attention: Here be dragons

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使用 NavigationLayer

NavigationLayers are an optional feature to further control which navigation meshes are considered in a path query. They work similar to how physics layers control collision between collision objects or how visual layers control what is rendered to the Viewport.

NavigationLayers可以在 ProjectSettings 中与物理层或视觉层相同地命名。

如果一个区域没有一个与路径查询的 navigation_layers 参数兼容的导览层，则在寻路时将跳过该区域的导览网格。有关查询导览服务器路径的更多信息，请参阅 使用 NavigationPath 。

NavigationLayers是用作 bitmask 的单个 int 值。许多与导航相关的节点都具有 set_navigation_layer_value() 和 get_navigation_layer_value() 函数，可以直接设置和获取层数，而不需要更复杂的逐位操作。

在脚本中，以下辅助函数可用于处理 navigati