|
| 1 | +""" |
| 2 | +2048 Environment Adapter |
| 3 | +
|
| 4 | +This adapter implements the EnvironmentAdapter interface for 2048 environments, |
| 5 | +enabling integration with the MCP-Gym framework. |
| 6 | +""" |
| 7 | + |
| 8 | +from typing import Any, Dict, Optional, Tuple |
| 9 | + |
| 10 | +import gym |
| 11 | +import gym_2048 |
| 12 | +from gym_2048.envs.game2048_env import Game2048Env |
| 13 | + |
| 14 | +from eval_protocol.mcp.adapter import EnvironmentAdapter |
| 15 | + |
| 16 | + |
| 17 | +class Gym2048Adapter(EnvironmentAdapter): |
| 18 | + """2048 adapter for MCP-Gym framework.""" |
| 19 | + |
| 20 | + ACTION_NAMES = ["UP", "RIGHT", "DOWN", "LEFT"] |
| 21 | + |
| 22 | + def create_environment(self, config: Optional[Dict[str, Any]] = None) -> Game2048Env: |
| 23 | + """ |
| 24 | + Create 2048 environment. |
| 25 | +
|
| 26 | + Args: |
| 27 | + config: config is not used in this implementation |
| 28 | +
|
| 29 | + Returns: |
| 30 | + 2048 environment instance |
| 31 | + """ |
| 32 | + print(f"🔍 Gym2048Adapter.create_environment: config: {config}") |
| 33 | + env = gym.make('2048-v0') |
| 34 | + return env |
| 35 | + |
| 36 | + def create_environment_with_seed( |
| 37 | + self, config: Optional[Dict[str, Any]] = None, seed: Optional[int] = None |
| 38 | + ) -> Tuple[Game2048Env, int, Dict[str, Any]]: |
| 39 | + """ |
| 40 | + Create 2048 environment with seed and return initial state. |
| 41 | +
|
| 42 | + Args: |
| 43 | + config: config is not used in this implementation |
| 44 | + seed: Seed for reproducible environments |
| 45 | +
|
| 46 | + Returns: |
| 47 | + Tuple of (environment, initial_observation, initial_info) |
| 48 | + """ |
| 49 | + print(f"🔍 Gym2048Adapter.create_environment_with_seed: seed: {seed}") |
| 50 | + config = config or {} |
| 51 | + |
| 52 | + # Add seed to config for environment creation |
| 53 | + env_config = {**config, "seed": seed} |
| 54 | + print(f"🔍 Gym2048Adapter.create_environment_with_seed: env_config: {env_config}") |
| 55 | + |
| 56 | + env = self.create_environment(env_config) |
| 57 | + print(f"🔍 Gym2048Adapter.create_environment_with_seed: created env, calling reset with seed: {seed}") |
| 58 | + obs, info = env.reset(seed=seed) |
| 59 | + print(f"🔍 Gym2048Adapter.create_environment_with_seed: reset returned obs: {obs}, info: {info}") |
| 60 | + |
| 61 | + return env, obs, info |
| 62 | + |
| 63 | + def reset_environment(self, env: Game2048Env, seed: Optional[int] = None) -> Tuple[int, Dict[str, Any]]: |
| 64 | + """ |
| 65 | + Reset environment. |
| 66 | +
|
| 67 | + Args: |
| 68 | + env: Environment instance |
| 69 | + seed: Optional seed for reset |
| 70 | +
|
| 71 | + Returns: |
| 72 | + Tuple of (observation, info) |
| 73 | + """ |
| 74 | + return env.reset(seed=seed) |
| 75 | + |
| 76 | + def step_environment(self, env: Game2048Env, action: int) -> Tuple[int, float, bool, bool, Dict[str, Any]]: |
| 77 | + """ |
| 78 | + Execute environment step. |
| 79 | +
|
| 80 | + Args: |
| 81 | + env: Environment instance |
| 82 | + action: Action index |
| 83 | +
|
| 84 | + Returns: |
| 85 | + Tuple of (observation, reward, terminated, truncated, info) |
| 86 | + """ |
| 87 | + return env.step(action) |
| 88 | + |
| 89 | + def close_environment(self, env: Game2048Env) -> None: |
| 90 | + """ |
| 91 | + Close environment. |
| 92 | +
|
| 93 | + Args: |
| 94 | + env: Environment instance |
| 95 | + """ |
| 96 | + env.close() |
| 97 | + |
| 98 | + def parse_action(self, action_str: str) -> int: |
| 99 | + """ |
| 100 | + Parse action string to integer. |
| 101 | +
|
| 102 | + Args: |
| 103 | + action_str: Action string (UP, RIGHT, DOWN, LEFT) |
| 104 | +
|
| 105 | + Returns: |
| 106 | + Action index |
| 107 | +
|
| 108 | + Raises: |
| 109 | + ValueError: If action is invalid |
| 110 | + """ |
| 111 | + action_str = action_str.strip().upper() |
| 112 | + if action_str not in self.ACTION_NAMES: |
| 113 | + raise ValueError(f"Invalid action '{action_str}'. Valid actions: {self.ACTION_NAMES}") |
| 114 | + return self.ACTION_NAMES.index(action_str) |
| 115 | + |
| 116 | + def format_observation(self, observation: int) -> int: |
| 117 | + """ |
| 118 | + Format observation for JSON serialization. |
| 119 | +
|
| 120 | + Args: |
| 121 | + observation: Raw observation from environment |
| 122 | +
|
| 123 | + Returns: |
| 124 | + Formatted observation |
| 125 | + """ |
| 126 | + return int(observation) |
| 127 | + |
| 128 | + def get_default_config(self) -> Dict[str, Any]: |
| 129 | + """ |
| 130 | + Get default configuration. |
| 131 | +
|
| 132 | + Returns: |
| 133 | + Default configuration dictionary |
| 134 | + """ |
| 135 | + return { |
| 136 | + "is_slippery": False, |
| 137 | + } |
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