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import typing
from random import random
import discord
from discord.ext import commands
class Minesweeper(commands.Cog):
"""Play a game of minesweeper."""
def __init__(self, bot: commands.Bot) -> None:
self.bot = bot
self.games: typing.Dict[discord.member, typing.Dict] = {} # Store the currently running games
@staticmethod
def is_bomb(cell: typing.Union[str, int]) -> int:
"""Returns 1 if `cell` is a bomb if not 0"""
return 1 if cell == "bomb" else 0
def generate_board(self, bomb_chance: float) -> typing.List[typing.List[typing.Union[str, int]]]:
"""Generate a 2d array for the board."""
board: typing.List[typing.List[typing.Union[str, int]]] = [
["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
to_check = []
for xt in [x - 1, x, x + 1]:
for yt in [y - 1, y, y + 1]:
if xt != -1 and xt != 10 and yt != -1 and yt != 10:
to_check.append(board[yt][xt])
bombs = sum(map(self.is_bomb, to_check))
board[y][x] = bombs
return board
@staticmethod
def format_for_discord(board: typing.List[typing.List[typing.Union[str, int]]]) -> str:
"""Format the board to a string for discord."""
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:"
}
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 = mapping[row_number + 1] + " "
for cell in row:
new_row += 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 in self.games.keys(): # 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 = self.generate_board(bomb_chance)
reveled_board = [["hidden" for _ in range(10)] for _ in range(10)]
await ctx.send(f"{ctx.author.mention} is playing minesweeper")
chat_msg = await ctx.send(self.format_for_discord(reveled_board))
await ctx.author.send("play by typing: `.reveal x y` or `.flag x y` \nclose the game with `.end`")
dm_msg = await ctx.author.send(self.format_for_discord(reveled_board))
self.games[ctx.author] = {
"board": board,
"reveled": reveled_board,
"dm_msg": dm_msg,
"chat_msg": chat_msg
}
@staticmethod
def get_cords(value1: str, value2: str) -> typing.Tuple[int, int]:
"""Take in 2 values for the cords and turn them into numbers"""
if value1.isnumeric():
return int(value1) - 1, ord(value2.lower()) - 97
else:
return ord(value1.lower()) - 97, int(value2) - 1
async def reload_board(self, ctx: commands.Context) -> None:
"""Update both playing boards."""
game = self.games[ctx.author]
await game["dm_msg"].delete()
game["dm_msg"] = await ctx.author.send(self.format_for_discord(game["reveled"]))
await game["chat_msg"].edit(content=self.format_for_discord(game["reveled"]))
@commands.dm_only()
@commands.command(name="flag")
async def flag_command(self, ctx: commands.Context, value1, value2) -> None:
"""Place a flag on the board"""
x, y = self.get_cords(value1, value2) # ints
board = self.games[ctx.author]["reveled"]
if board[y][x] == "hidden":
board[y][x] = "flag"
await self.reload_board(ctx)
async def lost(self, ctx: commands.Context) -> None:
"""The player lost the game"""
game = self.games[ctx.author]
game["reveled"] = game["board"]
await self.reload_board(ctx)
await ctx.author.send(":fire: You lost :fire: ")
await game["chat_msg"].channel.send(f":fire: {ctx.author.mention} just lost minesweeper :fire:")
del self.games[ctx.author]
async def won(self, ctx: commands.Context):
"""The player won the game"""
game = self.games[ctx.author]
game["reveled"] = game["board"]
await self.reload_board(ctx)
await ctx.author.send(":tada: You won! :tada: ")
await game["chat_msg"].channel.send(f":tada: {ctx.author.mention} just won minesweeper :tada:")
del self.games[ctx.author]
def reveal(self, reveled: typing.List, board: typing.List, x: int, y: int) -> None:
"""Used when a 0 is encountered to do a flood fill"""
for x_ in [x - 1, x, x + 1]:
for y_ in [y - 1, y, y + 1]:
if x_ == -1 or x_ == 10 or y_ == -1 or y_ == 10 or reveled[y_][x_] != "hidden":
continue
reveled[y_][x_] = board[y_][x_]
if board[y_][x_] == 0:
self.reveal(reveled, board, x_, y_)
@commands.dm_only()
@commands.command(name="reveal")
async def reveal_command(self, ctx: commands.Context, value1, value2):
"""Reveal a cell"""
x, y = self.get_cords(value1, value2)
game = self.games[ctx.author]
reveled = game["reveled"]
board = game["board"]
reveled[y][x] = board[y][x]
if board[y][x] == "bomb":
await self.lost(ctx)
elif board[y][x] == 0:
self.reveal(reveled, board, x, y)
# check if won
break_ = False
for x_ in range(10):
for y_ in range(10):
if reveled[y_][x_] == "hidden" and board[y_][x_] != "bomb":
break_ = True
break
if break_:
break
else:
await self.won(ctx)
await self.reload_board(ctx)
@commands.dm_only()
@commands.command(name="end")
async def end_command(self, ctx: commands.Context):
"""End the current game"""
game = self.games[ctx.author]
game["reveled"] = game["board"]
await self.reload_board(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]
def setup(bot: commands.Bot) -> None:
"""Cog load."""
bot.add_cog(Minesweeper(bot))
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