import random
import copy
import math
import discord
import math

from PIL import Image, ImageDraw, ImageFont

class HexGame():
    def __init__(self, bot):
        self.bot = bot
        self.draw = DrawHex(bot)
        self.BOARDWIDTH = 11
        self.ALLPOSITIONS = [(i,j) for i in range(11) for j in range(11)]
        self.ALLSET = set(self.ALLPOSITIONS)
        self.EMPTYDIJKSTRA = {}
        for position in self.ALLPOSITIONS:
            self.EMPTYDIJKSTRA[position] = math.inf # an impossibly high number
        self.HEXDIRECTIONS = [(0,1),(-1,1),(-1,0),(0,-1),(1,-1),(1,0)]

    async def surrender(self, ctx):
        channel = str(ctx.channel_id)
        game = self.bot.database["hex games"].find_one({"_id":channel})
        user = f"#{ctx.author.id}"
        players = game["players"]

        if user not in players:
            await ctx.send("You can't surrender when you're not a player.")
        else:
            opponent = (players.index(user) + 1) % 2
            opponentName = self.bot.database_funcs.get_name(players[opponent])
            self.bot.database["hex games"].update_one({"_id":channel},{"$set":{"winner":opponent + 1}})
            await ctx.send(f"{ctx.author.display_name} surrendered")

            with open(f"gwendolyn/resources/games/old_images/hex{channel}", "r") as f:
                old_image = await ctx.channel.fetch_message(int(f.read()))

            if old_image is not None:
                await old_image.delete()
            else:
                self.bot.log("The old image was already deleted")

            self.bot.log("Sending the image")
            file_path = f"gwendolyn/resources/games/hex_boards/board{channel}.png"
            old_image = await ctx.channel.send(file = discord.File(file_path))

            with open(f"gwendolyn/resources/games/old_images/hex{channel}", "w") as f:
                f.write(str(old_image.id))

            self.bot.database["hex games"].delete_one({"_id":channel})

    # Swap
    async def swap(self, ctx):
        channel = str(ctx.channel_id)
        game = self.bot.database["hex games"].find_one({"_id":channel})
        user = f"#{ctx.author.id}"

        if game is None:
            await ctx.send("You can't swap nothing")
        elif user not in game["players"]:
            await ctx.send("You're not in the game")
        elif len(game["gameHistory"]) != 1: # Only after the first move
            await ctx.send("You can only swap as the second player after the very first move.")
        elif user != game["players"][game["turn"]-1]:
            await ctx.send("You can only swap after your opponent has placed their piece")
        else:
            self.bot.database["hex games"].update_one({"_id":channel},
                {"$set":{"players":game["players"][::-1]}}) # Swaps their player-number

            # Swaps the color of the hexes on the board drawing:
            self.draw.drawSwap(channel)

            opponent = game["players"][::-1][game["turn"]-1]
            gwendoTurn = (opponent == f"#{self.bot.user.id}")
            opponentName = self.bot.database_funcs.get_name(opponent)
            await ctx.send(f"The color of the players were swapped. It is now {opponentName}'s turn")

            with open(f"gwendolyn/resources/games/old_images/hex{channel}", "r") as f:
                old_image = await ctx.channel.fetch_message(int(f.read()))

            if old_image is not None:
                await old_image.delete()
            else:
                self.bot.log("The old image was already deleted")

            self.bot.log("Sending the image")
            file_path = f"gwendolyn/resources/games/hex_boards/board{channel}.png"
            old_image = await ctx.channel.send(file = discord.File(file_path))

            with open(f"gwendolyn/resources/games/old_images/hex{channel}", "w") as f:
                f.write(str(old_image.id))

            if gwendoTurn:
                await self.hexAI(ctx)

    # Starts the game
    async def start(self, ctx, opponent):
        await self.bot.defer(ctx)
        user = f"#{ctx.author.id}"
        channel = str(ctx.channel_id)
        game = self.bot.database["hex games"].find_one({"_id":channel})

        startedGame = False
        canStart = True

        if game != None:
            sendMessage = "There's already a hex game going on in this channel"
            log_message = "There was already a game going on"
            canStart = False
        else:
            if type(opponent) == int:
                # Opponent is Gwendolyn
                if opponent in range(1, 6):
                    opponentName = "Gwendolyn"
                    difficulty = int(opponent)
                    diffText = f" with difficulty {difficulty}"
                    opponent = f"#{self.bot.user.id}"
                else:
                    sendMessage = "Difficulty doesn't exist"
                    log_message = "They tried to play against a difficulty that doesn't exist"
                    canStart = False

            elif type(opponent) == discord.member.Member:
                if opponent.bot:
                    # User has challenged a bot
                    if opponent == self.bot.user:
                        # It was Gwendolyn
                        opponentName = "Gwendolyn"
                        difficulty = 2
                        diffText = f" with difficulty {difficulty}"
                        opponent = f"#{self.bot.user.id}"
                    else:
                        sendMessage = "You can't challenge a bot!"
                        log_message = "They tried to challenge a bot"
                        canStart = False
                else:
                    # Opponent is another player
                    if ctx.author != opponent:
                        opponentName = opponent.display_name
                        opponent = f"#{opponent.id}"
                        difficulty = 5
                        diffText = ""
                    else:
                        sendMessage = "You can't play against yourself"
                        log_message = "They tried to play against themself"
                        canStart = False
            else:
                canStart = False
                log_message = f"Opponent was neither int or member. It was {type(opponent)}"
                sendMessage = "Something went wrong"

        if canStart:
            # board is 11x11
            board = [[0 for i in range(self.BOARDWIDTH)] for j in range(self.BOARDWIDTH)]
            players = [user, opponent]
            random.shuffle(players) # random starting player
            gameHistory = []

            newGame = {"_id":channel,"board":board, "winner":0,
                "players":players, "turn":1, "difficulty":difficulty, "gameHistory":gameHistory}

            self.bot.database["hex games"].insert_one(newGame)

            # draw the board
            self.draw.drawBoard(channel)

            gwendoTurn = (players[0] == f"#{self.bot.user.id}")
            startedGame = True

            turnName = self.bot.database_funcs.get_name(players[0])
            sendMessage = f"Started Hex game against {opponentName}{diffText}. It's {turnName}'s turn"
            log_message = "Game started"

        await ctx.send(sendMessage)
        self.bot.log(log_message)

        if startedGame:
            file_path = f"gwendolyn/resources/games/hex_boards/board{ctx.channel_id}.png"
            newImage = await ctx.channel.send(file = discord.File(file_path))

            with open(f"gwendolyn/resources/games/old_images/hex{ctx.channel_id}", "w") as f:
                f.write(str(newImage.id))

            if gwendoTurn:
                await self.hexAI(ctx)

    # Places a piece at the given location and checks things afterwards
    async def placeHex(self, ctx, position : str, user):
        channel = str(ctx.channel_id)
        game = self.bot.database["hex games"].find_one({"_id":channel})
        placedPiece = False

        if game == None:
            sendMessage = "There's no game in this channel"
            self.bot.log("There was no game going on")
        elif not (position[0].isalpha() and position[1:].isnumeric() and len(position) in [2, 3]):
            sendMessage = "The position must be a letter followed by a number."
            self.bot.log(f"The position was not valid, {position}")
        else:
            players = game["players"]
            if user not in players:
                sendMessage = f"You can't place when you're not in the game. The game's players are: {self.bot.database_funcs.get_name(game['players'][0])} and {self.bot.database_funcs.get_name(game['players'][1])}."
                self.bot.log("They aren't in the game")
            elif players[game["turn"]-1] != user:
                sendMessage = "It's not your turn"
                self.bot.log("It wasn't their turn")
            else:
                player = game["turn"]
                turn = game["turn"]
                board = game["board"]

                self.bot.log("Placing a piece on the board with placeHex()")
                # Places on board
                board = self.placeOnHexBoard(board,player,position)

                if board is None:
                    self.bot.log("It was an invalid position")
                    sendMessage = ("That's an invalid position. You must place your piece on an empty field.")
                else:
                    # If the move is valid:
                    self.bot.database["hex games"].update_one({"_id":channel},{"$set":{"board":board}})
                    turn = (turn % 2) + 1
                    self.bot.database["hex games"].update_one({"_id":channel},{"$set":{"turn":turn}})

                    # Checking for a win
                    self.bot.log("Checking for win")
                    winner = self.evaluateBoard(game["board"])[1]

                    if winner == 0: # Continue with the game.
                        gameWon = False
                        sendMessage = self.bot.database_funcs.get_name(game["players"][player-1])+" placed at "+position.upper()+". It's now "+self.bot.database_funcs.get_name(game["players"][turn-1])+"'s turn."# The score is "+str(score)

                    else: # Congratulations!
                        gameWon = True
                        self.bot.database["hex games"].update_one({"_id":channel},{"$set":{"winner":winner}})
                        sendMessage = self.bot.database_funcs.get_name(game["players"][player-1])+" placed at "+position.upper()+" and won!"
                        if game["players"][winner-1] != f"#{self.bot.user.id}":
                            winAmount = game["difficulty"]*10
                            sendMessage += " Adding "+str(winAmount)+" GwendoBucks to their account."

                    self.bot.database["hex games"].update_one({"_id":channel},
                        {"$push":{"gameHistory":(int(position[1])-1, ord(position[0])-97)}})

                    # Is it now Gwendolyn's turn?
                    gwendoTurn = False
                    if game["players"][turn-1] == f"#{self.bot.user.id}":
                        self.bot.log("It's Gwendolyn's turn")
                        gwendoTurn = True

                    placedPiece = True

        if user == f"#{self.bot.user.id}":
            await ctx.channel.send(sendMessage)
        else:
            await ctx.send(sendMessage)

        if placedPiece:
            # Update the board
            self.draw.drawHexPlacement(channel,player, position)

            with open(f"gwendolyn/resources/games/old_images/hex{channel}", "r") as f:
                old_image = await ctx.channel.fetch_message(int(f.read()))

            if old_image is not None:
                await old_image.delete()
            else:
                self.bot.log("The old image was already deleted")

            self.bot.log("Sending the image")
            file_path = f"gwendolyn/resources/games/hex_boards/board{channel}.png"
            old_image = await ctx.channel.send(file = discord.File(file_path))

            if gameWon:
                self.bot.log("Dealing with the winning player")
                game = self.bot.database["hex games"].find_one({"_id":channel})

                winner = game["winner"]
                if game["players"][winner-1] != f"#{self.bot.user.id}":
                    winnings = game["difficulty"]*10
                    self.bot.money.addMoney(game["players"][winner-1].lower(),winnings)

                self.bot.database["hex games"].delete_one({"_id":channel})
            else:
                with open(f"gwendolyn/resources/games/old_images/hex{channel}", "w") as f:
                    f.write(str(old_image.id))

                if gwendoTurn:
                    await self.hexAI(ctx)

    # Returns a board where the placement has ocurred
    def placeOnHexBoard(self, board,player,position):
        # Translates the position
        position = position.lower()
        # Error handling
        column = ord(position[0]) - 97   # ord() translates from letter to number
        row = int(position[1:]) - 1
        if column not in range(self.BOARDWIDTH) or row not in range(self.BOARDWIDTH):
            self.bot.log("Position out of bounds")
            return None
        # Place at the position
        if board[row][column] == 0:
            board[row][column] = player
            return board
        else:
            self.bot.log("Cannot place on existing piece (error code 1532)")
            return None

    # After your move, you have the option to undo get your turn back #TimeTravel
    async def undo(self, ctx):
        channel = str(ctx.channel_id)
        user = f"#{ctx.author.id}"
        undid = False

        game = self.bot.database["hex games"].find_one({"_id":channel})

        if user not in game["players"]:
            sendMessage = "You're not a player in the game"
        elif len(game["gameHistory"]) == 0:
            sendMessage = "You can't undo nothing"
        elif user != game["players"][(game["turn"] % 2)]: # If it's not your turn
            sendMessage = "It's not your turn"
        else:
            turn = game["turn"]
            self.bot.log("Undoing {}'s last move".format(self.bot.database_funcs.get_name(user)))

            lastMove = game["gameHistory"].pop()
            game["board"][lastMove[0]][lastMove[1]] = 0
            self.bot.database["hex games"].update_one({"_id":channel},
                {"$set":{"board":game["board"]}})
            self.bot.database["hex games"].update_one({"_id":channel},
                {"$set":{"turn":turn%2 + 1}})

            # Update the board
            self.draw.drawHexPlacement(channel,0,"abcdefghijk"[lastMove[1]]+str(lastMove[0]+1)) # The zero makes the hex disappear
            sendMessage = f"You undid your last move at {lastMove}"
            undid = True

        await ctx.send(sendMessage)
        if undid:
            with open(f"gwendolyn/resources/games/old_images/hex{channel}", "r") as f:
                old_image = await ctx.channel.fetch_message(int(f.read()))

            if old_image is not None:
                await old_image.delete()
            else:
                self.bot.log("The old image was already deleted")

            self.bot.log("Sending the image")
            file_path = f"gwendolyn/resources/games/hex_boards/board{channel}.png"
            old_image = await ctx.channel.send(file = discord.File(file_path))

            with open(f"gwendolyn/resources/games/old_images/hex{channel}", "w") as f:
                f.write(str(old_image.id))


    # Plays as the AI
    async def hexAI(self, ctx):
        channel = str(ctx.channel_id)
        self.bot.log("Figuring out best move")
        game = self.bot.database["hex games"].find_one({"_id":channel})
        board = game["board"]

        if len(game["gameHistory"]):
            lastMove = game["gameHistory"][-1]
        else:
            lastMove = (5,5)

        # These moves are the last move +- 2.
        moves = [[(lastMove[0]+j-2,lastMove[1]+i-2) for i in range(5) if lastMove[1]+i-2 in range(11)] for j in range(5) if lastMove[0]+j-2 in range(11)]
        moves = sum(moves,[])
        movesCopy = moves.copy()
        for move in movesCopy:
            if board[move[0]][move[1]] != 0:
                moves.remove(move)
        chosenMove = random.choice(moves)

        placement = "abcdefghijk"[chosenMove[1]]+str(chosenMove[0]+1)
        self.bot.log(f"ChosenMove is {chosenMove} at {placement}")

        await self.placeHex(ctx, placement, f"#{self.bot.user.id}")


    def evaluateBoard(self, board):
        scores = {1:0, 2:0}
        winner = 0
        # Here, I use Dijkstra's algorithm to evaluate the board, as proposed by this article: https://towardsdatascience.com/hex-creating-intelligent-adversaries-part-2-heuristics-dijkstras-algorithm-597e4dcacf93
        for player in [1,2]:
            Distance = copy.deepcopy(self.EMPTYDIJKSTRA)
            # Initialize the starting hexes. For the blue player, this is the leftmost column. For the red player, this is the tom row.
            for start in (self.ALLPOSITIONS[::11] if player == 2 else self.ALLPOSITIONS[:11]):
                # An empty hex adds a of distance of 1. A hex of own color add distance 0. Opposite color adds infinite distance.
                Distance[start] = 1 if (board[start[0]][start[1]] == 0) else 0 if (board[start[0]][start[1]] == player) else math.inf
            visited = set() # Also called sptSet, short for "shortest path tree Set"
            for _ in range(self.BOARDWIDTH**2): # We can at most check every 121 hexes
                # Find the next un-visited hex, that has the lowest distance
                remainingHexes = self.ALLSET.difference(visited)
                A = [Distance[k] for k in remainingHexes] # Find the distance to each un-visited hex
                u = list(remainingHexes)[A.index(min(A))] # Chooses the one with the lowest distance

                # Find neighbors of the hex u
                for di in self.HEXDIRECTIONS:
                    v = (u[0] + di[0] , u[1] + di[1]) # v is a neighbor of u
                    if v[0] in range(11) and v[1] in range(11) and v not in visited:
                        new_dist = Distance[u] + (1 if (board[v[0]][v[1]] == 0) else 0 if (board[v[0]][v[1]] == player) else math.inf)
                        Distance[v] = min(Distance[v], new_dist)
                # After a hex has been visited, this is noted
                visited.add(u)
                #self.bot.log("Distance from player {}'s start to {} is {}".format(player,u,Distance[u]))
                if u[player-1] == 10: # if the right coordinate of v is 10, it means we're at the goal
                    scores[player] = Distance[u] # A player's score is the shortest distance to goal. Which equals the number of remaining moves they need to win if unblocked by the opponent.
                    break
            else:
                self.bot.log("For some reason, no path to the goal was found. ")
            if scores[player] == 0:
                winner = player
                break # We don't need to check the other player's score, if player1 won.
        return scores[2]-scores[1], winner


    def minimaxHex(self, board, depth, alpha, beta, maximizingPlayer):
        # The depth is how many moves ahead the computer checks. This value is the difficulty.
        if depth == 0 or 0 not in sum(board,[]):
            score = self.evaluateBoard(board)[0]
            return score
        # if final depth is not reached, look another move ahead:
        if maximizingPlayer: # red player predicts next move
            maxEval = -math.inf
            possiblePlaces = [i for i,v in enumerate(sum(board,[])) if v == 0]
            #self.bot.log("Judging a red move at depth {}".format(depth))
            for i in possiblePlaces:
                testBoard = copy.deepcopy(board)
                testBoard[i // self.BOARDWIDTH][i % self.BOARDWIDTH] = 1 # because maximizingPlayer is Red which is number 1
                evaluation = self.minimaxHex(testBoard,depth-1,alpha,beta,False)
                maxEval = max(maxEval, evaluation)
                alpha = max(alpha, evaluation)
                if beta <= alpha:
                    #self.bot.log("Just pruned something!")
                    break
            return maxEval
        else: # blue player predicts next move
            minEval = math.inf
            possiblePlaces = [i for i,v in enumerate(sum(board,[])) if v == 0]
            #self.bot.log("Judging a blue move at depth {}".format(depth))
            for i in possiblePlaces:
                testBoard = copy.deepcopy(board)
                testBoard[i // self.BOARDWIDTH][i % self.BOARDWIDTH] = 2 # because minimizingPlayer is Blue which is number 2
                evaluation = self.minimaxHex(testBoard,depth-1,alpha,beta,True)
                minEval = min(minEval, evaluation)
                beta = min(beta, evaluation)
                if beta <= alpha:
                    #self.bot.log("Just pruned something!")
                    break
            return minEval

class DrawHex():
    def __init__(self,bot):
        self.bot = bot
        # Defining all the variables
        self.CANVASWIDTH  = 2400
        self.CANVASHEIGHT = 1800
        self.SIDELENGTH = 75

        # The offsets centers the board in the picture
        self.XOFFSET = self.CANVASWIDTH/2 - 8*math.sqrt(3)*self.SIDELENGTH

        # The offsets are the coordinates of the upperleft point in the
        # upperleftmost hexagon
        self.YOFFSET = self.CANVASHEIGHT/2 - 8*self.SIDELENGTH

        # The whole width of one hexagon
        self.HEXAGONWIDTH = math.sqrt(3) * self.SIDELENGTH

        # The height difference between two layers
        self.HEXAGONHEIGHT = 1.5 * self.SIDELENGTH
        self.FONTSIZE = 45
        self.TEXTCOLOR = (0,0,0)
        self.FONT = ImageFont.truetype('gwendolyn/resources/fonts/futura-bold.ttf', self.FONTSIZE)

        self.LINETHICKNESS = 15
        self.HEXTHICKNESS = 6 # This is half the width of the background lining between every hex
        self.XTHICKNESS = self.HEXTHICKNESS * math.cos(math.pi/6)
        self.YTHICKNESS = self.HEXTHICKNESS * math.sin(math.pi/6)
        self.BACKGROUNDCOLOR = (230,230,230)
        self.BETWEENCOLOR = (231,231,231)
        self.BLANKCOLOR = "lightgrey"
        self.PIECECOLOR = {1:(237,41,57),2:(0,165,255),0:self.BLANKCOLOR} # player1 is red, player2 is blue
        self.BOARDCOORDINATES = [ [(self.XOFFSET + self.HEXAGONWIDTH*(column + row/2),self.YOFFSET + self.HEXAGONHEIGHT*row) for column in range(11)] for row in range(11)] # These are the coordinates for the upperleft corner of every hex
        self.COLHEXTHICKNESS = 4 # When placing a hex, it is a little bigger than the underlying hex in the background (4 < 6)
        self.COLXTHICKNESS = self.COLHEXTHICKNESS * math.cos(math.pi/6)
        self.COLYTHICKNESS = self.COLHEXTHICKNESS * math.sin(math.pi/6)
        # The Name display things:
        self.NAMESIZE = 60
        self.NAMEFONT = ImageFont.truetype('gwendolyn/resources/fonts/futura-bold.ttf', self.NAMESIZE)
        self.XNAME = {1:175, 2:self.CANVASWIDTH-100}
        self.YNAME = {1:self.CANVASHEIGHT-150, 2:150}
        self.NAMEHEXPADDING = 90
        self.SMALLWIDTH = self.HEXAGONWIDTH * 0.6
        self.SMALLSIDELENGTH = self.SIDELENGTH * 0.6

    def drawBoard(self, channel):
        self.bot.log("Drawing empty Hex board")

        # Creates the empty image
        im = Image.new('RGB', size=(self.CANVASWIDTH, self.CANVASHEIGHT),color = self.BACKGROUNDCOLOR)
        # 'd' is a shortcut to drawing on the image
        d = ImageDraw.Draw(im,"RGBA")

        # Drawing all the hexagons
        for column in self.BOARDCOORDINATES:
            for startingPoint in column:
                x = startingPoint[0]
                y = startingPoint[1]
                d.polygon([
                    (x,                  y),
                    (x+self.HEXAGONWIDTH/2,   y-0.5*self.SIDELENGTH),
                    (x+self.HEXAGONWIDTH,     y),
                    (x+self.HEXAGONWIDTH,     y+self.SIDELENGTH),
                    (x+self.HEXAGONWIDTH/2,   y+1.5*self.SIDELENGTH),
                    (x,                  y+self.SIDELENGTH),
                ],fill = self.BETWEENCOLOR)
                d.polygon([
                    (x+self.XTHICKNESS,                y + self.YTHICKNESS),
                    (x+self.HEXAGONWIDTH/2,             y-0.5*self.SIDELENGTH + self.HEXTHICKNESS),
                    (x+self.HEXAGONWIDTH-self.XTHICKNESS,   y + self.YTHICKNESS),
                    (x+self.HEXAGONWIDTH-self.XTHICKNESS,   y+self.SIDELENGTH - self.YTHICKNESS),
                    (x+self.HEXAGONWIDTH/2,             y+1.5*self.SIDELENGTH - self.HEXTHICKNESS),
                    (x+self.XTHICKNESS,                y+self.SIDELENGTH - self.YTHICKNESS),
                ],fill = self.BLANKCOLOR)

        # Draw color on the outside of the board
        # Top line, red
        d.line(sum((sum([(point[0],point[1],point[0]+self.HEXAGONWIDTH/2,point[1]-self.HEXAGONHEIGHT+self.SIDELENGTH) for point in self.BOARDCOORDINATES[0]],()),(self.BOARDCOORDINATES[0][10][0]+self.HEXAGONWIDTH*3/4,self.BOARDCOORDINATES[0][10][1]-self.SIDELENGTH/4)),()),
                fill = self.PIECECOLOR[1],width = self.LINETHICKNESS)
        # Bottom line, red
        d.line(sum(((self.BOARDCOORDINATES[10][0][0]+self.HEXAGONWIDTH/4,self.BOARDCOORDINATES[10][0][1]+self.SIDELENGTH*5/4),sum([(point[0]+self.HEXAGONWIDTH/2,point[1]+self.HEXAGONHEIGHT,point[0]+self.HEXAGONWIDTH,point[1]+self.SIDELENGTH) for point in self.BOARDCOORDINATES[10]],())),()),
                fill = self.PIECECOLOR[1],width = self.LINETHICKNESS)
        # Left line, blue
        d.line(sum((sum([(row[0][0],row[0][1],row[0][0],row[0][1]+self.SIDELENGTH) for row in self.BOARDCOORDINATES],()),(self.BOARDCOORDINATES[10][0][0]+self.HEXAGONWIDTH/4,self.BOARDCOORDINATES[10][0][1]+self.SIDELENGTH*5/4)),()),
                fill = self.PIECECOLOR[2],width = self.LINETHICKNESS)
        # Right line, blue
        d.line(sum(((self.BOARDCOORDINATES[0][10][0]+self.HEXAGONWIDTH*3/4,self.BOARDCOORDINATES[0][10][1]-self.SIDELENGTH/4),sum([(row[10][0]+self.HEXAGONWIDTH,row[10][1],row[10][0]+self.HEXAGONWIDTH,row[10][1]+self.SIDELENGTH) for row in self.BOARDCOORDINATES],())),()),
                fill = self.PIECECOLOR[2],width = self.LINETHICKNESS)

        # Writes "abc..", "123.." on the columns and rows
        for i in range(11):
            # Top letters
            d.text( (self.XOFFSET + self.HEXAGONWIDTH*i, self.YOFFSET-66) , "ABCDEFGHIJK"[i], font=self.FONT, fill=self.TEXTCOLOR)
            # Bottom letters
            d.text( (self.XOFFSET + self.HEXAGONWIDTH*(i+11.5/2), self.YOFFSET - 15 + 11*self.HEXAGONHEIGHT) , "ABCDEFGHIJK"[i], font=self.FONT, fill=self.TEXTCOLOR)
            # Left numbers
            d.multiline_text( (self.XOFFSET + self.HEXAGONWIDTH*i/2 - 72 -4*(i>8), self.YOFFSET + 18 + i*self.HEXAGONHEIGHT) , str(i+1), font=self.FONT, fill=self.TEXTCOLOR, align="right")
            # Right numbers
            d.text( (self.XOFFSET + self.HEXAGONWIDTH*(i/2+11) + 30 , self.YOFFSET + 6 + i*self.HEXAGONHEIGHT) , str(i+1), font=self.FONT, fill=self.TEXTCOLOR)

        # Write player names and color
        game = self.bot.database["hex games"].find_one({"_id":channel})

        for p in [1,2]:
            playername = self.bot.database_funcs.get_name(game["players"][p-1])
            # Draw name
            x = self.XNAME[p]
            x -= self.NAMEFONT.getsize(playername)[0] if p==2 else 0 # player2's name is right-aligned
            y = self.YNAME[p]
            d.text((x,y),playername, font=self.NAMEFONT, fill = self.TEXTCOLOR)
            # Draw a half-size Hexagon to indicate the player's color
            x -= self.NAMEHEXPADDING # To the left of both names
            d.polygon([
                (x,                  y),
                (x+self.SMALLWIDTH/2,     y-self.SMALLSIDELENGTH/2),
                (x+self.SMALLWIDTH,       y),
                (x+self.SMALLWIDTH,       y+self.SMALLSIDELENGTH),
                (x+self.SMALLWIDTH/2,     y+self.SMALLSIDELENGTH*3/2),
                (x,                  y+self.SMALLSIDELENGTH),
            ],fill = self.PIECECOLOR[p])

        im.save("gwendolyn/resources/games/hex_boards/board"+channel+".png")




    def drawHexPlacement(self, channel,player,position):
        FILEPATH = "gwendolyn/resources/games/hex_boards/board"+channel+".png"
        self.bot.log(f"Drawing a newly placed hex. Filename: board{channel}.png")

        # Translates position
        # We don't need to error-check, because the position is already checked in placeOnHexBoard()
        position = position.lower()
        column = ord(position[0])-97   # ord() translates from letter to number
        row = int(position[1:])-1

        # Find the coordinates for the filled hex drawing
        hex_coords = [
            (self.BOARDCOORDINATES[row][column][0]+self.COLXTHICKNESS,              self.BOARDCOORDINATES[row][column][1] + self.COLYTHICKNESS),
            (self.BOARDCOORDINATES[row][column][0]+self.HEXAGONWIDTH/2,              self.BOARDCOORDINATES[row][column][1]-0.5*self.SIDELENGTH + self.COLHEXTHICKNESS),
            (self.BOARDCOORDINATES[row][column][0]+self.HEXAGONWIDTH-self.COLXTHICKNESS, self.BOARDCOORDINATES[row][column][1] + self.COLYTHICKNESS),
            (self.BOARDCOORDINATES[row][column][0]+self.HEXAGONWIDTH-self.COLXTHICKNESS, self.BOARDCOORDINATES[row][column][1]+self.SIDELENGTH - self.COLYTHICKNESS),
            (self.BOARDCOORDINATES[row][column][0]+self.HEXAGONWIDTH/2,              self.BOARDCOORDINATES[row][column][1]+1.5*self.SIDELENGTH - self.COLHEXTHICKNESS),
            (self.BOARDCOORDINATES[row][column][0]+self.COLXTHICKNESS,              self.BOARDCOORDINATES[row][column][1]+self.SIDELENGTH - self.COLYTHICKNESS),
            ]

        # Opens the image
        try:
            with Image.open(FILEPATH) as im:
                d = ImageDraw.Draw(im,"RGBA")
                # Draws the hex piece
                d.polygon(hex_coords,fill = self.PIECECOLOR[player], outline = self.BETWEENCOLOR)

                # Save
                im.save(FILEPATH)
        except:
            self.bot.log("Error drawing new hex on board (error code 1541")

    def drawSwap(self, channel):
        FILEPATH = "gwendolyn/resources/games/hex_boards/board"+channel+".png"
        game = self.bot.database["hex games"].find_one({"_id":channel})
        # Opens the image
        try:
            with Image.open(FILEPATH) as im:
                d = ImageDraw.Draw(im,"RGBA")

                # Write player names and color
                for p in [1,2]:
                    playername = self.bot.database_funcs.get_name(game["players"][p%2])

                    x = self.XNAME[p]
                    x -= self.NAMEFONT.getsize(playername)[0] if p==2 else 0 # player2's name is right-aligned
                    y = self.YNAME[p]

                    # Draw a half-size Hexagon to indicate the player's color
                    x -= self.NAMEHEXPADDING # To the left of both names
                    d.polygon([
                        (x,                  y),
                        (x+self.SMALLWIDTH/2,     y-self.SMALLSIDELENGTH/2),
                        (x+self.SMALLWIDTH,       y),
                        (x+self.SMALLWIDTH,       y+self.SMALLSIDELENGTH),
                        (x+self.SMALLWIDTH/2,     y+self.SMALLSIDELENGTH*3/2),
                        (x,                  y+self.SMALLSIDELENGTH),
                    ],fill = self.PIECECOLOR[p % 2 + 1])

                # Save
                im.save(FILEPATH)
        except:
            self.bot.log("Error drawing swap (error code 1542)")