205 lines
7 KiB
Python
205 lines
7 KiB
Python
import json
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from enum import Enum
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from typing import List, Optional
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import more_itertools
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from variants import variant_id, variant_name
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BASE62 = "abcdefghijklmnopqrstuvwxyz0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ";
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COLORS = 'rygbpt'
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# Helper method, iterate over chunks of length n in a string
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def chunks(s: str, n: int):
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for i in range(0, len(s), n):
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yield s[i:i+n]
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class DeckCard():
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def __init__(self, suitIndex: int, rank: int, deck_index=None):
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self.suitIndex: int = suitIndex
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self.rank: int = rank
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self.deck_index = deck_index
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@staticmethod
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def from_json(deck_card):
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return DeckCard(**deck_card)
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def __eq__(self, other):
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return self.suitIndex == other.suitIndex and self.rank == other.rank
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def __repr__(self):
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return COLORS[self.suitIndex] + str(self.rank)
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def __hash__(self):
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# should be injective enough, we never use cards with ranks differing by 1000
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return 1000 * self.suitIndex + self.rank
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class ActionType(Enum):
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Play = 0
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Discard = 1
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ColorClue = 2
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RankClue = 3
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EndGame = 4
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VoteTerminate = 5 ## hack: online, this is encoded as a 10
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class Action():
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def __init__(self, type_: ActionType, target: int, value: Optional[int] = None):
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self.type = type_
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self.target = target
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self.value = value
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@staticmethod
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def from_json(action):
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return Action(
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ActionType(action['type']),
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int(action['target']),
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action.get('value', None)
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)
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def __repr__(self):
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match self.type:
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case ActionType.Play:
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return "Play card {}".format(self.target)
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case ActionType.Discard:
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return "Discard card {}".format(self.target)
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case ActionType.ColorClue:
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return "Clue color {} to player {}".format(self.value, self.target)
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case ActionType.RankClue:
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return "Clue rank {} to player {}".format(self.value, self.target)
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case ActionType.EndGame:
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return "Player {} ends the game (code {})".format(self.target, self.value)
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case ActionType.VoteTerminate:
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return "Players vote to terminate the game (code {})".format(self.value)
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return "Undefined action"
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def compress_actions(actions: List[Action], game_id=None) -> str:
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minType = 0
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maxType = 0
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if len(actions) != 0:
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minType = min(map(lambda a: a.type.value, actions))
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maxType = max(map(lambda a: a.type.value, actions))
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typeRange = maxType - minType + 1
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def compress_action(action):
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## We encode action values with +1 to differentiate
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# null (encoded 0) and 0 (encoded 1)
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value = 0 if action.value is None else action.value + 1
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if action.type == ActionType.VoteTerminate:
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value = 0
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with open('vote_terminate_actions.txt', 'a') as f:
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f.write('target: {}, value: {}, game_id: {}\n'.format(action.target, action.value, game_id))
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a = BASE62[typeRange * value + (action.type.value - minType)]
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b = BASE62[action.target]
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return a + b
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out = str(minType) + str(maxType)
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out += ''.join(map(compress_action, actions))
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return out
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def decompress_actions(actions_str: str) -> List[Action]:
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try:
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minType = int(actions_str[0])
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maxType = int(actions_str[1])
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except ValueError:
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raise ValueError("invalid action string: invalid min/max range")
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assert(maxType >= minType)
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if not len(actions_str) % 2 == 0:
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raise ValueError("Invalid length of action str")
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typeRange = maxType - minType + 1
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def decompress_action(action):
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actionType = ActionType((BASE62.index(action[0]) % typeRange) + minType)
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value = None
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if actionType not in [actionType.Play, actionType.Discard]:
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## We encode values with +1 to differentiate null (encoded 0) and 0 (encoded 1)
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value = BASE62.index(action[0]) // typeRange - 1
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if value == -1:
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value = None
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target = BASE62.index(action[1])
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return Action(actionType, target, value)
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return [decompress_action(a) for a in chunks(actions_str[2:], 2)]
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def compress_deck(deck: List[DeckCard]) -> str:
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assert(len(deck) != 0)
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minRank = min(map(lambda c: c.rank, deck))
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maxRank = max(map(lambda c: c.rank, deck))
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rankRange = maxRank - minRank + 1
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def compress_card(card):
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return BASE62[rankRange * card.suitIndex + (card.rank - minRank)]
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out = str(minRank) + str(maxRank)
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out += ''.join(map(compress_card, deck))
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return out
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def decompress_deck(deck_str: str) -> List[DeckCard]:
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assert(len(deck_str) >= 2)
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minRank = int(deck_str[0])
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maxRank = int(deck_str[1])
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assert(maxRank >= minRank)
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rankRange = maxRank - minRank + 1
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def decompress_card(card_char):
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index = BASE62.index(card_char)
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suitIndex = index // rankRange
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rank = index % rankRange + minRank
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return DeckCard(suitIndex, rank)
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return [decompress_card(c) for c in deck_str[2:]]
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def compressJSONGame(game_json: dict) -> str:
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out = ""
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num_players = len(game_json.get('players', []))
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num_players = game_json.get('num_players', num_players)
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if not 2 <= num_players:
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raise ValueError("Invalid JSON game: could not parse num players")
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out = "{}".format(num_players)
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try:
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deck = game_json['deck']
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except:
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raise KeyError("JSON game contains no deck")
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assert(len(deck) > 0)
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if type(deck[0]) != DeckCard:
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try:
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deck = [DeckCard.from_json(card) for card in deck]
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except:
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raise ValueError("invalid jSON format: could not convert to deck cards")
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# now, deck is in the correct form
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out += compress_deck(deck)
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out += "," # first part finished
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actions = game_json.get('actions', [])
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if len(actions) == 0:
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print("WARNING: action array is empty")
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else:
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if type(actions[0]) != Action:
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try:
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actions = [Action.from_json(action) for action in actions]
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except:
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raise ValueError("invalid JSON format: could not convert to actions")
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out += compress_actions(actions)
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out += ","
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variant = game_json.get("variant", "No Variant")
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out += str(variant_id(variant))
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return ''.join(more_itertools.intersperse("-", out, 20))
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def decompressJSONGame(game_str: str)->dict:
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game = {}
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game_str = game_str.replace("-", "")
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try:
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[players_deck, actions, variant_id] = game_str.split(",")
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except:
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raise ValueError("Invalid format of compressed string!")
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game['players'] = ["Alice", "Bob", "Cathy", "Donald", "Emily"][:int(players_deck[0])]
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game['deck'] = decompress_deck(players_deck[1:])
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game['actions'] = decompress_actions(actions)
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game['options'] = {
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"variant": variant_name(int(variant_id))
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}
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return game
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def link(game_json: dict) -> str:
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compressed = compressJSONGame(game_json)
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return "https://hanab.live/replay-json/{}".format(compressed)
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