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import logging
import typing
from dataclasses import dataclass
from random import random
import discord
from discord.ext import commands
from bot.constants import Client
MESSAGE_MAPPING = {
0: ":stop_button:",
1: ":one:",
2: ":two:",
3: ":three:",
4: ":four:",
5: ":five:",
6: ":six:",
7: ":seven:",
8: ":eight:",
9: ":nine:",
10: ":keycap_ten:",
"bomb": ":bomb:",
"hidden": ":grey_question:",
"flag": ":triangular_flag_on_post:"
}
log = logging.getLogger(__name__)
class CoordinateConverter(commands.Converter):
"""Converter for Coordinates."""
async def convert(self, ctx, Coordinate: str) -> typing.Tuple[int, int]:
"""Take in a Coordinate string and turn it into x, y"""
if not 2 <= len(Coordinate) <= 3:
raise commands.ArgumentParsingError()
value1 = Coordinate[0]
value2 = Coordinate[1:]
if not value2.isdigit():
raise commands.ArgumentParsingError()
x = ord(value1) - 97
y = int(value2) - 1
if (not 0 <= x <= 9) or (not 0 <= y <= 9):
raise commands.ArgumentParsingError()
return x, y
GameDict = typing.List[typing.List[typing.Union[str, int]]]
@dataclass
class Game:
"""The data for a game."""
board: GameDict
revealed: GameDict
dm_msg: discord.message
chat_msg: discord.message
DictOfGames = typing.Dict[int, Game]
class Minesweeper(commands.Cog):
"""Play a game of Minesweeper."""
def __init__(self, bot: commands.Bot) -> None:
self.games: DictOfGames = {} # Store the currently running games
@staticmethod
def get_neighbours(x: int, y: int) -> typing.Generator:
"""Get all the neighbouring x and y including it self."""
for x_ in [x - 1, x, x + 1]:
for y_ in [y - 1, y, y + 1]:
if x_ != -1 and x_ != 10 and y_ != -1 and y_ != 10:
yield x_, y_
def generate_board(self, bomb_chance: float) -> GameDict:
"""Generate a 2d array for the board."""
board: GameDict = [["bomb" if random() <= bomb_chance else "number" for _ in range(10)] for _ in range(10)]
for y, row in enumerate(board):
for x, cell in enumerate(row):
if cell == "number":
# calculate bombs near it
bombs = 0
for x_, y_ in self.get_neighbours(x, y):
if board[y_][x_] == "bomb":
bombs += 1
board[y][x] = bombs
return board
@staticmethod
def format_for_discord(board: GameDict) -> str:
"""Format the board as a string for Discord."""
discord_msg = (
":stop_button: :regional_indicator_a::regional_indicator_b::regional_indicator_c:"
":regional_indicator_d::regional_indicator_e::regional_indicator_f::regional_indicator_g:"
":regional_indicator_h::regional_indicator_i::regional_indicator_j:\n\n"
)
rows: typing.List[str] = []
for row_number, row in enumerate(board):
new_row = MESSAGE_MAPPING[row_number + 1] + " "
for cell in row:
new_row += MESSAGE_MAPPING[cell]
rows.append(new_row)
discord_msg += "\n".join(rows)
return discord_msg
@commands.command(name="minesweeper")
async def minesweeper_command(self, ctx: commands.Context, bomb_chance: float = .2) -> None:
"""Start a game of Minesweeper."""
if ctx.author.id in self.games: # Player is already playing
msg = await ctx.send(f"{ctx.author.mention} you already have a game running!")
await msg.delete(delay=2)
await ctx.message.delete(delay=2)
return
# Add game to list
board: GameDict = self.generate_board(bomb_chance)
revealed_board: GameDict = [["hidden"] * 10 for _ in range(10)]
await ctx.send(f"{ctx.author.mention} is playing Minesweeper")
chat_msg = await ctx.send(self.format_for_discord(revealed_board))
await ctx.author.send(
f"Play by typing: `{Client.prefix}reveal xy [xy]` or `{Client.prefix}flag xy [xy]` \n"
"Close the game with `.end`\n"
"Coordinates must be in format `<letter><number>`"
)
dm_msg = await ctx.author.send(self.format_for_discord(revealed_board))
self.games[ctx.author.id] = Game(
board=board,
revealed=revealed_board,
dm_msg=dm_msg,
chat_msg=chat_msg
)
async def update_boards(self, ctx: commands.Context) -> None:
"""Update both playing boards."""
game = self.games[ctx.author.id]
await game.dm_msg.delete()
game.dm_msg = await ctx.author.send(self.format_for_discord(game.revealed))
await game.chat_msg.edit(content=self.format_for_discord(game.revealed))
@commands.dm_only()
@commands.command(name="flag")
async def flag_command(self, ctx: commands.Context, *Coordinates: CoordinateConverter) -> None:
"""Place multiple flags on the board"""
board: GameDict = self.games[ctx.author.id].revealed
for x, y in Coordinates:
if board[y][x] == "hidden":
board[y][x] = "flag"
await self.update_boards(ctx)
async def lost(self, ctx: commands.Context) -> None:
"""The player lost the game"""
game = self.games[ctx.author.id]
game.revealed = game.board
await ctx.author.send(":fire: You lost! :fire: ")
await game.chat_msg.channel.send(f":fire: {ctx.author.mention} just lost minesweeper :fire:")
async def won(self, ctx: commands.Context) -> None:
"""The player won the game"""
game = self.games[ctx.author.id]
game.revealed = game.board
await ctx.author.send(":tada: You won! :tada: ")
await game.chat_msg.channel.send(f":tada: {ctx.author.mention} just won minesweeper :tada:")
def reveal_zeros(self, revealed: GameDict, board: GameDict, x: int, y: int) -> None:
"""Recursively reveal adjacent cells when a 0 cell is encountered."""
for x_, y_ in self.get_neighbours(x, y):
if revealed[y_][x_] != "hidden":
continue
revealed[y_][x_] = board[y_][x_]
if board[y_][x_] == 0:
self.reveal_zeros(revealed, board, x_, y_)
async def check_if_won(self, ctx, revealed: GameDict, board: GameDict) -> bool:
"""Checks if a player has won"""
for x in range(10):
for y in range(10):
if revealed[y][x] == "hidden" and board[y][x] != "bomb":
return False
else:
await self.won(ctx)
return True
async def reveal_one(self, ctx: commands.Context, revealed: GameDict, board: GameDict, x: int, y: int) -> bool:
"""Reveal one square."""
revealed[y][x] = board[y][x]
if board[y][x] == "bomb":
await self.lost(ctx)
return True # game ended
elif board[y][x] == 0:
self.reveal_zeros(revealed, board, x, y)
won = await self.check_if_won(ctx, revealed, board)
return won
@commands.dm_only()
@commands.command(name="reveal")
async def reveal_command(self, ctx: commands.Context, *Coordinates: CoordinateConverter) -> None:
"""Reveal multiple cells"""
game = self.games[ctx.author.id]
revealed: GameDict = game.revealed
board: GameDict = game.board
for x, y in Coordinates:
if await self.reveal_one(ctx, revealed, board, x, y): # game ended
await self.update_boards(ctx)
del self.games[ctx.author.id]
break
else:
await self.update_boards(ctx)
@commands.command(name="end")
async def end_command(self, ctx: commands.Context):
"""End the current game"""
game = self.games[ctx.author.id]
game.revealed = game.board
await self.update_boards(ctx)
await ctx.author.send(":no_entry: you canceled the game :no_entry:")
await game.chat_msg.channel.send(f"{ctx.author.mention} just canceled minesweeper")
del self.games[ctx.author.id]
def setup(bot: commands.Bot) -> None:
"""Load the Minesweeper cog."""
bot.add_cog(Minesweeper(bot))
log.info("minesweeper cog loaded")
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