add some codes to make retain come true

rl_game/demo/train.py

@@ -1,83 +1,101 @@
 import sys
 import os
-# 关键：确保当前目录在 sys.path 中，这样才能直接 from config 导入
+import argparse
+
+# 确保能找到项目根目录下的模块
 sys.path.append(os.path.dirname(os.path.abspath(__file__)))
 
-import argparse
 from isaaclab.app import AppLauncher
 
-# 添加启动参数
-parser = argparse.ArgumentParser(description="Train T1 robot with rl_games.")
-parser.add_argument("--num_envs", type=int, default=16384, help="Number of envs to run.")
+# 1. 配置启动参数
+parser = argparse.ArgumentParser(description="Train T1 robot to Get-Up with RL-Games.")
+parser.add_argument("--num_envs", type=int, default=16384, help="起身任务建议并行 4096 即可")
+parser.add_argument("--task", type=str, default="Isaac-T1-GetUp-v0", help="任务 ID")
+parser.add_argument("--seed", type=int, default=42, help="随机种子")
 AppLauncher.add_app_launcher_args(parser)
 args_cli = parser.parse_args()
 
-# 启动仿真器
+# 2. 启动仿真器（必须在导入其他 isaaclab 模块前）
 app_launcher = AppLauncher(args_cli)
 simulation_app = app_launcher.app
 
 import torch
 import gymnasium as gym
+import yaml
 from isaaclab_rl.rl_games import RlGamesVecEnvWrapper
 from rl_games.torch_runner import Runner
-import yaml
-from config.t1_env_cfg import T1EnvCfg
 from rl_games.common import env_configurations, vecenv
 
+# 导入你刚刚修改好的配置类
+# 假设你的文件名是 t1_getup_cfg.py，类名是 T1EnvCfg
+from config.t1_env_cfg import T1EnvCfg
+
+# 3. 注册环境
 gym.register(
-    id="Isaac-T1-Walking-v0",
-    entry_point="isaaclab.envs:ManagerBasedRLEnv", # Isaac Lab 统一的强化学习环境入口
+    id="Isaac-T1-Walk-v0",
+    entry_point="isaaclab.envs:ManagerBasedRLEnv",
     kwargs={
-        "cfg": T1EnvCfg(),
+        "cfg": T1EnvCfg(),  # 这里会加载你设置的随机旋转、时间惩罚等
     },
 )
 
-def main():
-    # 1. 创建环境 (保持不变)
-    env = gym.make("Isaac-T1-Walking-v0", num_envs=args_cli.num_envs)
 
-    # 2. 包装环境 (保持不变)
+def main():
+    # --- 新增：处理 Retrain 参数 ---
+    # 你可以手动指定路径，或者在 argparse 里增加一个 --checkpoint 参数
+    checkpoint_path = os.path.join(os.path.dirname(__file__), "logs/T1_GetUp/nn/**.pth")
+    # 检查模型文件是否存在
+    should_retrain = os.path.exists(checkpoint_path)
+
+    env = gym.make("Isaac-T1-Walk-v0", num_envs=args_cli.num_envs)
+
+    # 注意：rl_device 必须设置为 args_cli.device (通常是 'cuda:0')
     wrapped_env = RlGamesVecEnvWrapper(
         env,
         rl_device=args_cli.device,
         clip_obs=5.0,
-        clip_actions=100.0
+        clip_actions=1.0
     )
 
     vecenv.register('as_is', lambda config_name, num_actors, **kwargs: wrapped_env)
 
-    # 注册环境配置
     env_configurations.register('rlgym', {
         'vecenv_type': 'as_is',
         'env_creator': lambda **kwargs: wrapped_env
     })
 
-    # 3. 加载 PPO 配置 (保持不变)
     config_path = os.path.join(os.path.dirname(__file__), "config", "ppo_cfg.yaml")
     with open(config_path, "r") as f:
         rl_config = yaml.safe_load(f)
 
-    # 设置日志路径
+    # 设置日志和实验名称
     rl_game_dir = os.path.abspath(os.path.join(os.path.dirname(__file__), "."))
     log_dir = os.path.join(rl_game_dir, "logs")
     rl_config['params']['config']['train_dir'] = log_dir
+    rl_config['params']['config']['name'] = "T1_GetUp"
 
-    # 4. 启动训练
+    # --- 关键修改：注入模型路径 ---
+    if should_retrain:
+        print(f"[INFO]: 检测到预训练模型，正在从 {checkpoint_path} 恢复训练...")
+        # rl_games 会读取 config 中的 load_path 进行续训
+        rl_config['params']['config']['load_path'] = checkpoint_path
+    else:
+        print("[INFO]: 未找到预训练模型，将从零开始训练。")
+
+    # 7. 运行训练
     runner = Runner()
-
-    # 此时 rl_config 只有文本和数字，没有复杂对象，deepcopy 会成功
     runner.load(rl_config)
 
-    # 在 run 时传入对象是安全的
     runner.run({
         "train": True,
         "play": False,
+        # 如果你想强制从某个 checkpoint 开始，也可以在这里传参
+        "checkpoint": checkpoint_path if should_retrain else None,
         "vec_env": wrapped_env
     })
 
     simulation_app.close()
 
-# PYTHONPATH=. python rl_game/your_file_name/train.py
 
 if __name__ == "__main__":
     main()