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二进制序列化 API

前言

Godot has a serialization API based on Variant. It's used for converting data types to an array of bytes efficiently. This API is exposed via the global bytes_to_var() and var_to_bytes() functions, but it is also used in the get_var and store_var methods of FileAccess as well as the packet APIs for PacketPeer. This format is not used for binary scenes and resources.

完整对象 vs 对象实例 ID

如果序列化变量时使用了 full_objects = true，则该变量中所包含的 Object 都会进行序列化、包含在结果中。这个过程是递归的。

如果 full_objects = false，则只会对该变量中所包含的 Object 的实例 ID 进行序列化。

数据包规格

根据设计，数据包总是会被填充到 4 个字节。所有的值都是小端编码的。所有数据包都有一个 4 字节的头，代表一个整数，指定数据的类型。

两个低字节用于确定类型，而两个高字节则包含标志：

base_type =