320 lines
11 KiB
Python
320 lines
11 KiB
Python
import json
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import random
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import copy
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import math
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from . import fourInARowDraw
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from funcs import logThis
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AIScores = {
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"middle": 1,
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"two in a row": 5,
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"three in a row": 50,
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"enemy two in a row": -25,
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"enemy three in a row": -200,
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"enemy win": -10000,
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"win": 420,
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}
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rowCount = 6
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columnCount = 7
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easy = True
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# Starts the game
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def fourInARowStart(channel, user, opponent):
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with open("resources/games/games.json", "r") as f:
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data = json.load(f)
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if user.lower() != opponent.lower():
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if channel not in data["4 in a row games"]:
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if opponent.lower() in ["gwendolyn",""," "]:
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opponent = "Gwendolyn"
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board = [ [ 0 for i in range(columnCount) ] for j in range(rowCount) ]
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players = [user,opponent]
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random.shuffle(players)
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data["4 in a row games"][channel] = {"board": board,"winner":0,"win direction":"",
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"win coordinates":[0,0],"players":players,"turn":0}
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with open("resources/games/games.json", "w") as f:
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json.dump(data,f,indent=4)
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fourInARowDraw.drawImage(channel)
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gwendoTurn = False
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if players[0] == "Gwendolyn":
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gwendoTurn = True
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return "Started game against "+opponent+". It's "+players[0]+"'s turn", True, False, False, gwendoTurn
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else:
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return "There's already a 4 in a row game going on in this channel", False, False, False, False
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else:
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return "You can't play against yourself", False, False, False, False
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# Places a piece at the lowest available point in a specific column
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def placePiece(channel : str,player : int,column : int):
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with open("resources/games/games.json", "r") as f:
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data = json.load(f)
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if channel in data["4 in a row games"]:
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board = data["4 in a row games"][channel]["board"]
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board = placeOnBoard(board,player,column)
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if board != None:
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data["4 in a row games"][channel]["board"] = board
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turn = (data["4 in a row games"][channel]["turn"]+1)%2
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data["4 in a row games"][channel]["turn"] = turn
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with open("resources/games/games.json", "w") as f:
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json.dump(data,f,indent=4)
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logThis("Checking for win")
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won, winDirection, winCoordinates = isWon(data["4 in a row games"][channel]["board"])
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if won != 0:
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gameWon = True
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data["4 in a row games"][channel]["winner"] = won
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data["4 in a row games"][channel]["win direction"] = winDirection
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data["4 in a row games"][channel]["win coordinates"] = winCoordinates
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message = data["4 in a row games"][channel]["players"][won-1]+" won."
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if data["4 in a row games"][channel]["players"][won-1] != "Gwendolyn":
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message += " Adding 20 GwendoBucks to their account."
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elif 0 not in board[0]:
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gameWon = True
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message = "It's a draw!"
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else:
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gameWon = False
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message = data["4 in a row games"][channel]["players"][player-1]+" placed a piece in column "+str(column+1)+". It's now "+data["4 in a row games"][channel]["players"][turn]+"'s turn."
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with open("resources/games/games.json", "w") as f:
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json.dump(data,f,indent=4)
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gwendoTurn = False
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if data["4 in a row games"][channel]["players"][turn] == "Gwendolyn":
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logThis("It's Gwendolyn's turn")
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gwendoTurn = True
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fourInARowDraw.drawImage(channel)
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return message, True, True, gameWon, gwendoTurn
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else:
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return "There isn't any room in that column", True, True, False, False
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else:
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return "There's no game in this channel", False, False, False, False
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# Returns a board where a piece has been placed in the column
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def placeOnBoard(board,player,column):
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placementx, placementy = -1, column
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for x in range(len(board)):
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if board[x][column] == 0:
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placementx = x
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board[placementx][placementy] = player
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if placementx == -1:
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return None
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else:
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return board
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# Parses command
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def parseFourInARow(command, channel, user):
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if command == "" or command == " ":
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return "I didn't get that. \"Use !fourinarow start [opponent]\" to start a game.", False, False, False, False
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elif command.startswith(" start ") or command == (" start"):
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command = command.replace(" start ","").replace(" start","")
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return fourInARowStart(channel,user,command)
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elif command.startswith(" stop"):
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with open("resources/games/games.json", "r") as f:
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data = json.load(f)
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if user in data["4 in a row games"][channel]["players"]:
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return "Ending game.", False, False, True, False
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else:
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return "You can't end a game where you're not a player.", False, False, False, False
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elif command.startswith(" place"):
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commands = command.split(" ")
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#try:
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return placePiece(channel,int(commands[2]),int(commands[3])-1)
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#except:
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# return "I didn't quite get that", False, False, False
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else:
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return "I didn't get that", False, False, False, False
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# Checks if someone has won the game and returns the winner
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def isWon(board):
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won = 0
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winDirection = ""
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winCoordinates = [0,0]
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for line in range(len(board)):
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for place in range(len(board[line])):
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if won == 0:
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piecePlayer = board[line][place]
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if piecePlayer != 0:
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# Checks horizontal
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if place <= columnCount-4:
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pieces = [board[line][place+1],board[line][place+2],board[line][place+3]]
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else:
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pieces = [0]
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if all(x == piecePlayer for x in pieces):
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won = piecePlayer
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winDirection = "h"
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winCoordinates = [line,place]
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# Checks vertical
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if line <= rowCount-4:
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pieces = [board[line+1][place],board[line+2][place],board[line+3][place]]
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else:
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pieces = [0]
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if all(x == piecePlayer for x in pieces):
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won = piecePlayer
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winDirection = "v"
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winCoordinates = [line,place]
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# Checks right diagonal
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if line <= rowCount-4 and place <= columnCount-4:
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pieces = [board[line+1][place+1],board[line+2][place+2],board[line+3][place+3]]
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else:
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pieces = [0]
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if all(x == piecePlayer for x in pieces):
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won = piecePlayer
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winDirection = "r"
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winCoordinates = [line,place]
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# Checks left diagonal
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if line <= rowCount-4 and place >= 3:
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pieces = [board[line+1][place-1],board[line+2][place-2],board[line+3][place-3]]
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else:
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pieces = [0]
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if all(x == piecePlayer for x in pieces):
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won = piecePlayer
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winDirection = "l"
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winCoordinates = [line,place]
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return won, winDirection, winCoordinates
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# Plays as the AI
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def fourInARowAI(channel):
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logThis("Figuring out best move")
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with open("resources/games/games.json", "r") as f:
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data = json.load(f)
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board = data["4 in a row games"][channel]["board"]
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player = data["4 in a row games"][channel]["players"].index("Gwendolyn")+1
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scores = [-math.inf,-math.inf,-math.inf,-math.inf,-math.inf,-math.inf,-math.inf]
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for column in range(0,columnCount):
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testBoard = copy.deepcopy(board)
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testBoard = placeOnBoard(testBoard,player,column)
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if testBoard != None:
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scores[column] = minimax(testBoard,4,player%2+1,player,False)
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logThis("Best score for column "+str(column)+" is "+str(scores[column]))
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possibleScores = scores.copy()
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while (min(possibleScores) <= (max(possibleScores) - max(possibleScores)/10)) or len(possibleScores) == 1:
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possibleScores.remove(min(possibleScores))
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highest_score = random.choice(possibleScores)
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indices = [i for i, x in enumerate(scores) if x == highest_score]
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placement = random.choice(indices)
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return placePiece(channel,player,placement)
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# Calculates points for a board
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def AICalcPoints(board,player):
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score = 0
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otherPlayer = player%2+1
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# Adds points for middle placement
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for line in range(len(board)):
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if board[line][3] == player:
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score += AIScores["middle"]
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# Checks horizontal
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for line in range(rowCount):
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rowArray = [int(i) for i in list(board[line])]
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for place in range(columnCount-3):
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window = rowArray[place:place+4]
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score += evaluateWindow(window,player,otherPlayer)
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# Checks Vertical
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for column in range(columnCount):
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columnArray = [int(i[column]) for i in list(board)]
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for place in range(rowCount-3):
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window = columnArray[place:place+4]
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score += evaluateWindow(window,player,otherPlayer)
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# Checks right diagonal
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for line in range(rowCount-3):
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for place in range(columnCount-3):
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window = [board[line][place],board[line+1][place+1],board[line+2][place+2],board[line+3][place+3]]
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score += evaluateWindow(window,player,otherPlayer)
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# Checks left diagonal
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for line in range(rowCount-3):
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for place in range(3,columnCount):
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window = [board[line][place],board[line+1][place-1],board[line+2][place-2],board[line+3][place-3]]
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score += evaluateWindow(window,player,otherPlayer)
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## Checks if anyone has won
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#won = isWon(board)[0]
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## Add points if AI wins
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#if won == player:
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# score += AIScores["win"]
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return score
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def evaluateWindow(window,player,otherPlayer):
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if window.count(player) == 4:
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return AIScores["win"]
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elif window.count(player) == 3 and window.count(0) == 1:
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return AIScores["three in a row"]
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elif window.count(player) == 2 and window.count(0) == 2:
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return AIScores["two in a row"]
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elif window.count(otherPlayer) == 4:
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return AIScores["enemy win"]
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else:
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return 0
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def minimax(board, depth, player , originalPlayer, maximizingPlayer):
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terminal = ((isWon(board)[0] != 0) or (0 not in board[0]))
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if depth == 0 or terminal:
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points = AICalcPoints(board,originalPlayer)
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return points
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if maximizingPlayer:
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value = -math.inf
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for column in range(0,columnCount):
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testBoard = copy.deepcopy(board)
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testBoard = placeOnBoard(testBoard,player,column)
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if testBoard != None:
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value = max(value,minimax(testBoard,depth-1,player%2+1,originalPlayer,False))
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return value
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else:
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value = math.inf
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for column in range(0,columnCount):
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testBoard = copy.deepcopy(board)
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testBoard = placeOnBoard(testBoard,player,column)
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if testBoard != None:
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value = min(value,minimax(testBoard,depth-1,player%2+1,originalPlayer,True))
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return value
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