openverse_hub/honey-heist-battle
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Add env.py from Openverse builder

Browse Source
This commit is contained in:
Openverse Builder
2001-01-01 00:00:00 +00:00
commit c1ab3a4227
1 changed files with 249 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

249
env.py Normal file
View File

@@ -0,0 +1,249 @@
```python
import re
import random
from typing import Any, Dict, Optional, Tuple, List
import textarena as ta
class HoneyHeistBattleEnv(ta.Env):
"""
Environment for "Honey Heist: Battle of the Bears".
Two rival bears compete for honey in a turn-based deterministic environment.
"""
def __init__(self, max_turns: Optional[int] = 20):
self.max_turns = max_turns
# regex patterns for validation
self.patterns = {
"forage": re.compile(r"^\[Forage:(1|2|3)\]$"),
"steal": re.compile(r"^\[Steal:(1|2|3)\]$"),
"defend": re.compile(r"^\[Defend\]$"),
}
# --------------------------------------------------------------------- #
# Helper for extracting boxed content
# --------------------------------------------------------------------- #
def _extract_answer_content(self, action: str) -> str:
"""Extract content inside \boxed{} or return full stripped string."""
match = re.search(r'\\boxed\{([^}]*)\}', action, re.DOTALL)
if match:
return match.group(1).strip()
return action.strip()
# --------------------------------------------------------------------- #
# Reset / Initialization
# --------------------------------------------------------------------- #
def reset(self, num_players: int, seed: Optional[int] = None):
"""
Resets the environment to an initial state.
"""
if num_players != 2:
raise ValueError("Honey Heist: Battle of the Bears requires exactly 2 players.")
# Initialize TwoPlayerState
self.state = ta.TwoPlayerState(num_players=num_players, seed=seed, max_turns=self.max_turns)
rng = random.Random(seed)
hive_honey = rng.randint(15, 20)
game_state = {
"turn_number": 1,
"current_player": "BearA",
"hive_honey": hive_honey,
"max_turns": self.max_turns,
"players": {
"BearA": {"stored_honey": 0, "last_action": None, "defending": False, "score": 0},
"BearB": {"stored_honey": 0, "last_action": None, "defending": False, "score": 0},
},
"history": [],
"winner": None,
"draw": False,
"seed": seed if seed is not None else 0,
}
role_mapping = {0: "BearA", 1: "BearB"}
self.state.reset(game_state=game_state, player_prompt_function=self._generate_player_prompt, role_mapping=role_mapping)
self.state.add_observation("Welcome to Honey Heist: Battle of the Bears!", ta.ObservationType.GAME_MESSAGE)
self.state.add_observation(
f"The hive contains {hive_honey} units of honey. BearA goes first.",
ta.ObservationType.GAME_MESSAGE
)
return self.state
# --------------------------------------------------------------------- #
# Player Prompt Generator
# --------------------------------------------------------------------- #
def _generate_player_prompt(self, player_id: int, game_state: Dict[str, Any]) -> str:
"""Produce role-appropriate prompt for each bear."""
role = "BearA" if player_id == 0 else "BearB"
rival = "BearB" if role == "BearA" else "BearA"
hive_honey = game_state["hive_honey"]
player_honey = game_state["players"][role]["stored_honey"]
rival_honey = game_state["players"][rival]["stored_honey"]
turn_number = game_state["turn_number"]
max_turns = game_state["max_turns"]
prompt = f"""
You are a hungry bear competing for the last honey in the forest.
- Your goal: End the game with more honey than your rival.
- Each turn, choose ONE of the following actions:
[Forage:X] Gather X units (1–3) from the hive.
[Defend] Protect your honey from theft this turn.
[Steal:X] Steal X units (1–3) from your rival if they do not defend.
Game facts:
- Hive honey remaining: {hive_honey}
- Your stored honey: {player_honey}
- Rival stored honey: {rival_honey}
- Turn {turn_number} / {max_turns}
Format rule:
State your reasoning briefly, then put your final action in the following format:
"Put your final answer within \\boxed{{}} at the end of your response."
Example valid response:
I think foraging is safe early on.
\\boxed{{[Forage:3]}}
Example invalid response:
\\boxed{{Forage 3}} <-- Must include brackets and colon.
"""
return prompt.strip()
# --------------------------------------------------------------------- #
# Step - main game logic
# --------------------------------------------------------------------- #
def step(self, action: str) -> Tuple[bool, ta.Info]:
"""
Perform a single environment step for the current player.
"""
player_id = self.state.current_player_id
player_role = "BearA" if player_id == 0 else "BearB"
opponent_role = "BearB" if player_role == "BearA" else "BearA"
game_state = self.state.game_state
# record action to transcript
self.state.add_observation(action, ta.ObservationType.PLAYER_ACTION, from_id=player_id, to_id=-1)
# extract and validate
token = self._extract_answer_content(action)
if game_state["winner"] or game_state["draw"]:
self.state.set_invalid_move("Game is already over.")
return self.state.step()
valid_action = False
reason = None
if self.patterns["forage"].match(token):
valid_action = True
act_type = "forage"
qty = int(re.findall(r"\d+", token)[0])
elif self.patterns["steal"].match(token):
valid_action = True
act_type = "steal"
qty = int(re.findall(r"\d+", token)[0])
elif self.patterns["defend"].match(token):
valid_action = True
act_type = "defend"
qty = 0
else:
reason = "Invalid format, must use [Forage:X], [Steal:X], or [Defend]."
if not valid_action:
self.state.set_invalid_move(reason)
return self.state.step()
# handle action
player_data = game_state["players"][player_role]
opp_data = game_state["players"][opponent_role]
if act_type == "forage":
if game_state["hive_honey"] < qty:
self.state.set_invalid_move("Not enough honey in hive.")
return self.state.step()
# update hive and player
game_state["hive_honey"] -= qty
player_data["stored_honey"] += qty
player_data["score"] = player_data["stored_honey"]
elif act_type == "defend":
player_data["defending"] = True
elif act_type == "steal":
if opp_data["stored_honey"] < qty:
self.state.set_invalid_move("Opponent has insufficient honey.")
return self.state.step()
if opp_data["defending"]:
transfer = 0 # blocked
else:
transfer = qty
opp_data["stored_honey"] -= transfer
player_data["stored_honey"] += transfer
player_data["score"] = player_data["stored_honey"]
opp_data["score"] = opp_data["stored_honey"]
# update metadata
player_data["last_action"] = token
entry = {"turn": game_state["turn_number"], "actor": player_role, "action": token}
game_state["history"].append(entry)
game_state["current_player"] = opponent_role
# Next player's defending status reset check
# Every full round (both bears act), clear defending flags
if player_role == "BearB":
game_state["players"]["BearA"]["defending"] = False
game_state["players"]["BearB"]["defending"] = False
# increment turn number
game_state["turn_number"] += 1
# Check terminal conditions
done = False
reason_end = ""
if game_state["hive_honey"] <= 0:
done = True
reason_end = "Hive honey depleted."
elif game_state["turn_number"] > game_state["max_turns"]:
done = True
reason_end = "Maximum turns reached."
else:
total_honey = (
game_state["hive_honey"]
+ game_state["players"]["BearA"]["stored_honey"]
+ game_state["players"]["BearB"]["stored_honey"]
)
if total_honey <= 0:
done = True
reason_end = "All honey depleted."
if done:
a_honey = game_state["players"]["BearA"]["stored_honey"]
b_honey = game_state["players"]["BearB"]["stored_honey"]
if a_honey > b_honey:
game_state["winner"] = "BearA"
self.state.set_winner(player_id=0, reason=reason_end + " BearA has more honey.")
elif b_honey > a_honey:
game_state["winner"] = "BearB"
self.state.set_winner(player_id=1, reason=reason_end + " BearB has more honey.")
else:
game_state["draw"] = True
self.state.set_draw(reason=reason_end + " Equal honey scores.")
return self.state.step()
# --------------------------------------------------------------------- #
# Standard required Env accessors
# --------------------------------------------------------------------- #
def get_observation(self) -> Tuple[int, List]:
"""Return current player's observations."""
return self.state.current_player_id, self.state.observations
def close(self) -> Tuple[Dict, Dict]:
"""Return rewards and game_info at close."""
return self.state.rewards, self.state.game_info
```