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title: "Netcode for GameObjects"
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type: entity
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tags: [unity, networking, framework]
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sources: [unity-multiplayer-engineer]
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last_updated: 2026-04-26
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---
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## Aliases
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- NGO
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- Netcode for GameObjects (NGO)
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## Type
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Unity 官方多人游戏网络框架
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## Definition
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Netcode for GameObjects(NGO)是 Unity 官方提供的多人游戏网络编程框架,提供 `NetworkObject`、`NetworkVariable<T>`、`ServerRpc`、`ClientRpc` 等核心网络原语,简化服务器权威多人游戏开发。
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## Core Components
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| 组件 | 类型 | 用途 |
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|------|------|------|
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| `NetworkObject` | 组件 | 挂载到 GameObject 使其可联网 |
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| `NetworkVariable<T>` | 类型 | 持久化状态同步 |
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| `ServerRpc` | 特性 | 客户端调用 → 服务器执行 |
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| `ClientRpc` | 特性 | 服务器调用 → 所有客户端执行 |
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| `NetworkManager` | 组件 | 网络管理器 |
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| `UnityTransport` | 组件 | 底层传输层(支持直连/Relay) |
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## Key Design Decisions
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- **服务器权威**:所有 NetworkVariable write 权限默认为 Server
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- **自动同步**:NetworkVariable 变化自动同步,无需手动调用
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- **Prefabs 注册**:所有联网 Prefab 必须注册到 NetworkPrefabs 列表
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## Related Concepts
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- [[ServerAuthority]]: NGO 强制服务器权威
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- [[NetworkVariable]]: 核心数据类型
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- [[UnityRelay]]: 通过 UnityTransport 集成 Relay
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- [[UnityMultiplayerEngineer]]: 使用 NGO 构建游戏的专家
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## Related Entities
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- [[UnityGamingServices]]: NGO 与 UGS 深度集成
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- [[UnityTransport]]: NGO 的传输层实现
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