> For the complete documentation index, see [llms.txt](https://docs.ninjutsugames.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.ninjutsugames.com/game-creator-2/state-machine-2/multiplayer/patterns.md).

# Common Patterns

These patterns help you structure networked state machines effectively.

## Player State Machine

For player-controlled characters:

```
Start Node [Run on Owner]
└─ Input Trigger [Run on Owner]
    └─ Movement Actions [RPC to All]
```

### Breakdown

| Node             | Run On     | Reason                                 |
| ---------------- | ---------- | -------------------------------------- |
| Start            | Owner      | Initialize only for controlling player |
| Input Trigger    | Owner      | Only the owner reads input             |
| Movement Actions | RPC to All | All clients see the movement           |

## AI State Machine

For server-authoritative AI:

```
Start Node [Run on Master]
└─ AI Decision [Run on Master]
    └─ AI Actions [RPC to All]
```

### Breakdown

| Node        | Run On     | Reason                        |
| ----------- | ---------- | ----------------------------- |
| Start       | Master     | AI runs on server only        |
| AI Decision | Master     | Server makes all AI decisions |
| AI Actions  | RPC to All | All clients see AI behavior   |

## Shared Game Logic

For game-wide state (lobby, match state):

```
Start Node [Run on Master]
└─ Game State Changes [RPC to All]
    └─ UI Updates [Run on All]
```

### Breakdown

| Node               | Run On     | Reason                           |
| ------------------ | ---------- | -------------------------------- |
| Start              | Master     | Server controls game flow        |
| Game State Changes | RPC to All | Sync state to all clients        |
| UI Updates         | Run on All | Each client updates their own UI |

## Hybrid Pattern

Combine local and networked behavior:

```
Trigger: On Interact [Run on Owner]
├─ Action: Play Local Sound [Run on Owner]
└─ Action: Toggle State [RPC to All]
    └─ Action: Play Animation [Run on All]
```

This pattern plays a sound only for the interacting player while syncing the actual game state change.


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