docs: 程序agent记忆更新+UE5.7 Python API笔记+搭建报告修正
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- [Level Builder Tool](level-builder-tool.md) — 白模关卡自动生成 Python 脚本(tools/level-builder/,265 Actor 解析验证通过)
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- [UE5.7 Python API](ue57-python-api.md) — 实测 API 差异(set_actor_rotation、new_level、CWD、import 路径)
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---
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name: ue57-python-api
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description: UE5.7 Python API 实测差异记录——set_actor_rotation、new_level、CWD 问题
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metadata:
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type: project
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---
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# UE5.7 Python API 实测差异
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## 2026-06-07 实测(UE 5.7, PythonScriptPlugin)
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### `set_actor_rotation()` 需要 `teleport_physics` 参数
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```python
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# UE5.6 文档写法(会报错):
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actor.set_actor_rotation(unreal.Rotator(pitch, yaw, roll))
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# UE5.7 正确写法:
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actor.set_actor_rotation(unreal.Rotator(pitch, yaw, roll), False)
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```
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**Why:** UE5.7 改了 API 签名,positional argument `teleport_physics` 变为必需
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**How to apply:** 所有 `set_actor_rotation()` 调用都加第二个参数 `False`
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### `-ExecutePythonScript` 模式下 CWD 不是项目目录
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```python
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# ❌ 错误:CWD 是引擎 Binaries 目录
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PROJECT_ROOT = Path(os.getcwd())
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# → E:\...\UE_5.7\Engine\Binaries\Win64
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# ✅ 正确:通过环境变量传入
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PROJECT_ROOT = Path(os.environ.get("LB_PROJECT_ROOT", ""))
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```
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**Why:** UE5 引擎启动时将 CWD 设为引擎二进制目录
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**How to apply:** 由 bat 脚本设置 `LB_PROJECT_ROOT` 环境变量,Python 脚本从中读取
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### `new_level()` 需要 `asset_path` 参数
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```python
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# ❌ 错误:
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unreal.EditorLevelLibrary.new_level()
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# ✅ 正确:
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unreal.EditorLevelLibrary.new_level("/Game/Maps/LVL_SuburbanV01")
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```
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### `AssetToolsSubsystem` 在 UE5.7 Python 中不可用
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`unreal.get_editor_subsystem(unreal.AssetToolsSubsystem)` 报 `no attribute 'AssetToolsSubsystem'`
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改用 `unreal.EditorLevelLibrary.new_level(asset_path)` 创建关卡
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### 目录名含连字符导致 Python import 失败
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```
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tools/level-builder/ ← 连字符
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from tools.level_builder.config... ← 下划线,Python import 不支持连字符
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```
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修复:将 level-builder 根目录加入 sys.path,使用 `from config.asset_mapping import ...` 代替完整路径
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## 相关文件
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- `tools/level-builder/builder/scene_builder.py`
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- `tools/level-builder/build_cmdline.py`
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- `tools/level-builder/build_level.bat`
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# 白模搭建报告 — 自动生成
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> 生成时间: 2026-06-07 23:03
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> 生成时间: 2026-06-07 23:11
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> 数据来源: 关卡-v01-搭建指南.md
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> 场景尺寸: 8000cm × 6000cm
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