A Python-first Mineflayer SDK with a synchronous, IDE-friendly callback API.
Project description
總覽
minethon 是教學導向的 Python mineflayer SDK。
底層透過 JSPyBridge 驅動 mineflayer,但公開 API 收斂成同步 callback、薄門面、完整 stub — 讓學生不需要先學 Node.js、EventEmitter、asyncio,也能一行一行看懂並自己仿寫。
特色
- 同步 callback API —
@bot.on_chatdecorator 直接註冊處理函式,沒有await也沒有 event loop - 完整型別層 —
bot.pyi由 mineflayer 官方index.d.ts自動生成,IDE hover 顯示中文說明 - 兩種事件寫法 —
@bot.on_<event>sugar、@bot.on(BotEvent.CHAT)enum,任選其一 - Class-based handler — 繼承
BotHandlers、override 想要的on_<event>、bot.bind(instance)一次綁完 - Pathfinding — 內建 typed 支援的
mineflayer-pathfinder,bot.pathfinder.goto(...)直接可用 - 顯式版本釘選 — 非內建 plugin 必須傳版本字串,避免 JSPyBridge 在 runtime 偷裝 latest
前置需求
| 項目 | 需求 |
|---|---|
| Python | 3.14+ |
| Node.js | 22+ |
| Minecraft Server | Java Edition |
安裝
./setup.sh
setup.sh 會:
- 跑
uv sync安裝 Python 依賴 - 檢查 Node.js 22+
- 預裝 pinned 的
mineflayer、vec3、mineflayer-pathfinder
Node.js 必須在 PATH 中可用。
setup.sh啟動時會自動檢查。
快速開始
from minethon import BotEvent, create_bot
from minethon.models import ChatMessage
bot = create_bot(host="localhost", username="pybot")
@bot.on_spawn
def on_spawn() -> None:
bot.chat("hello")
@bot.on_chat
def on_chat(
username: str,
message: str,
translate: str | None,
json_msg: ChatMessage,
matches: list[str] | None,
) -> None:
if username == bot.username:
return
if message == "quit":
bot.quit("bye")
@bot.on(BotEvent.END)
def on_end(reason: str) -> None:
print(f"Disconnected: {reason}")
bot.run_forever()
事件 API
以下兩種寫法都支援:
@bot.on_chat
def on_chat(...): ...
@bot.on(BotEvent.CHAT)
def on_chat(...): ...
JetBrains / Pylance 的 completion 體驗:
@bot.on_chat是最直接的 decorator,IDE 會跳出完整參數列@bot.on(BotEvent.CHAT)適合想保留顯式 event enum 的寫法@bot.on("chat")字串形式已移除,不再是公開 API
Class-based handler
偏好 OOP 的學生可以繼承 BotHandlers、覆寫想關心的事件、一次 bind:
from minethon import BotHandlers, create_bot
class My(BotHandlers):
def on_spawn(self) -> None:
print(f"Spawned as {bot.username}")
def on_chat(self, username, message, *_):
if message == "quit":
bot.quit("bye")
bot = create_bot(host="localhost", username="pybot")
bot.bind(My())
bot.run_forever()
型別與匯入
常用型別可從 minethon.models 匯入:
from minethon.models import Block, ChatMessage, Entity, Item, Player, Vec3
這些是公開型別 shell,實際成員面以 src/minethon/bot.pyi 為準。
版本規則
create_bot(...)內部固定使用 pinned 的mineflayerbot.load_plugin("mineflayer-pathfinder")可省略版本,會用內建 pin- 其他 npm 套件必須顯式版本:
viewer = bot.require("prismarine-viewer", "1.33.0")
tool = bot.load_plugin("mineflayer-tool", "1.5.0", export_key="plugin")
這是刻意設計,用來避免 JSPyBridge 在 runtime 偷裝 latest,確保教學範例在學生環境可重現。
範例
| 範例 | 說明 |
|---|---|
| drasl_auth | 透過自建 Drasl 驗證伺服器連線並回應聊天 |
專案結構
src/minethon/
├── __init__.py # 使用者入口(re-export create_bot / Bot / BotEvent / BotHandlers / 錯誤類)
├── bot.py # runtime façade:event decorator、plugin loading、版本 guard
├── bot.pyi # 生成的 IDE 型別層(由 scripts/generate_stubs.py 產出)
├── _events.py # 生成的 BotEvent StrEnum
├── _handlers.py # 生成的 BotHandlers 基底類別
├── _bridge.py # JSPyBridge 封裝:callback thread、emitter 注入、handler 正規化
├── _type_shells.py # 內部型別 shell 實作
├── errors.py # 公開錯誤類(MinethonError、NotSpawnedError、VersionPinRequiredError 等)
├── py.typed # PEP 561 型別支援標記
└── models/ # 可匯入的公開型別 shell
├── __init__.py
└── __init__.pyi
scripts/
├── generate_stubs.py # 從 mineflayer / pathfinder d.ts 生成 bot.pyi / _events.py / _handlers.py
└── format.sh # 一鍵 regen → ruff → pyright → pytest
docs/
└── stubs_zh_tw.md # 中文 hover 說明來源(供 generator 注入 docstring)
開發
一鍵跑完(regen stubs → format → lint → type-check → test):
./scripts/format.sh # 寫回格式修正
./scripts/format.sh --check # 只檢查不寫入(CI 模式)
對應的個別指令:
uv run python scripts/generate_stubs.py
uv run ruff format src scripts tests
uv run ruff check src scripts tests
uv run pyright src/
uv run pytest -m "not integration" --tb=short -q
IntelliJ / PyCharm 使用者注意
uv sync 會以 editable 模式安裝本專案,導致 IDEA 的 Python SDK 將專案目錄同時視為外部 library,可能使整個專案被標記為 excluded。
解法: File → Project Structure → SDKs → 選擇 Python interpreter → Paths 頁籤,移除指向本專案以及本專案 src/ 的路徑,然後 Apply。
貢獻
歡迎 PR 與 Issue!
送出前請確認:
- 遵循現有的程式碼風格與架構慣例(細節見
AGENTS.md) - 通過所有檢查
./scripts/format.sh --check
- 以
feature/your-feature或fix/your-fix命名分支 - 發布 PR 時,目標分支為
dev
授權
本專案採用 GNU Affero General Public License v3.0 授權。
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