#imports random library
import random
messages=[]
playerPositions=[]
player1PositionsValue=[]
player2PositionsValue=[]
creation=False
win=False
positions=[]
for k in range(9):
    positions.append(str(k+1).zfill(2))
for j in range(40):
    positions.append(j+10)
#this function will roll 2 dice and add them together
def diceRoll(messages):
    dice1=random.randint(1,6)
    dice2=random.randint(1,6)
    if dice1 == dice2:
        totalDice=((dice1+dice2)-(2*(dice1+dice2)))
    else:
        totalDice=dice1+dice2
    print(messages[0],dice1,messages[1],dice2,messages[13],totalDice)
    return totalDice

#this function reads in the messages from an external file called messages.txt
def messagesReading():
    global messages
    file=open("messages.txt","r")
    for line in file:
        messages.append(line.strip("\n"))
    file.close()
    return messages

#this function creates and displays the grid system
def gridStorage(messages,playerPositions,player1PositionsValue,player2PositionsValue,positions):
    global creation
    if creation == False:
        for k in range(9):
            playerPositions.append("    ")
        for j in range(40):
            playerPositions.append("    ")
        for i in range(49):
            player1PositionsValue.append("")
            player2PositionsValue.append("")
        player1PositionsValue[0]=1
        player2PositionsValue[0]=1
        creation=True
        playerPositions[0]=" % &"
        print(positions[42],playerPositions[42],positions[43],playerPositions[43],positions[44],playerPositions[44],positions[45],playerPositions[45],positions[46],playerPositions[46],positions[47],playerPositions[47],positions[48],playerPositions[48])
        print(positions[35],playerPositions[35],positions[36],playerPositions[36],positions[37],playerPositions[37],positions[38],playerPositions[38],positions[39],playerPositions[39],positions[40],playerPositions[40],positions[41],playerPositions[41])
        print(positions[28],playerPositions[28],positions[29],playerPositions[29],positions[30],playerPositions[30],positions[31],playerPositions[31],positions[32],playerPositions[32],positions[33],playerPositions[33],positions[34],playerPositions[34])
        print(positions[21],playerPositions[21],positions[22],playerPositions[22],positions[23],playerPositions[23],positions[24],playerPositions[24],positions[25],playerPositions[25],positions[26],playerPositions[26],positions[27],playerPositions[27])
        print(positions[14],playerPositions[14],positions[15],playerPositions[15],positions[16],playerPositions[16],positions[17],playerPositions[17],positions[18],playerPositions[18],positions[19],playerPositions[19],positions[20],playerPositions[20])
        print(positions[7],playerPositions[7],positions[8],playerPositions[8],positions[9],playerPositions[9],positions[10],playerPositions[10],positions[11],playerPositions[11],positions[12],playerPositions[12],positions[13],playerPositions[13])
        print(positions[0],playerPositions[0],positions[1],playerPositions[1],positions[2],playerPositions[2],positions[3],playerPositions[3],positions[4],playerPositions[4],positions[5],playerPositions[5],positions[6],playerPositions[6])
    else:
        print(positions[42],playerPositions[42],positions[43],playerPositions[43],positions[44],playerPositions[44],positions[45],playerPositions[45],positions[46],playerPositions[46],positions[47],playerPositions[47],positions[48],playerPositions[48])
        print(positions[35],playerPositions[35],positions[36],playerPositions[36],positions[37],playerPositions[37],positions[38],playerPositions[38],positions[39],playerPositions[39],positions[40],playerPositions[40],positions[41],playerPositions[41])
        print(positions[28],playerPositions[28],positions[29],playerPositions[29],positions[30],playerPositions[30],positions[31],playerPositions[31],positions[32],playerPositions[32],positions[33],playerPositions[33],positions[34],playerPositions[34])
        print(positions[21],playerPositions[21],positions[22],playerPositions[22],positions[23],playerPositions[23],positions[24],playerPositions[24],positions[25],playerPositions[25],positions[26],playerPositions[26],positions[27],playerPositions[27])
        print(positions[14],playerPositions[14],positions[15],playerPositions[15],positions[16],playerPositions[16],positions[17],playerPositions[17],positions[18],playerPositions[18],positions[19],playerPositions[19],positions[20],playerPositions[20])
        print(positions[7],playerPositions[7],positions[8],playerPositions[8],positions[9],playerPositions[9],positions[10],playerPositions[10],positions[11],playerPositions[11],positions[12],playerPositions[12],positions[13],playerPositions[13])
        print(positions[0],playerPositions[0],positions[1],playerPositions[1],positions[2],playerPositions[2],positions[3],playerPositions[3],positions[4],playerPositions[4],positions[5],playerPositions[5],positions[6],playerPositions[6])
    return playerPositions

#this function updates player 1's position and sends it to the grid to be displayed graphically
def moveP1(messages,playerPositions,player1PositionsValue,player2PositionsValue,positions):
    global creation
    temp12=input(messages[11])
    totalDice=diceRoll(messages)
    p1Position=player1PositionsValue.index(1)
    p2Position=player2PositionsValue.index(1)
    if p1Position+totalDice > 49:
        print(messages[14])
        win=True
        print(messages[16])
        ans=input(str("").lower())
        if ans == "yes" or ans == "y" or ans == "1":
            creation=False
            playerPositions=[]
            alternatingTurn(messages,playerPositions,player1PositionsValue,player2PositionsValue,positions)
        else:
            print(messages[17])
    else:
        player1PositionsValue[p1Position]=""
        player1PositionsValue[p1Position+totalDice+1]=1
        if p1Position == p2Position:
            playerPositions[p1Position]="   &"
            playerPositions[p1Position+totalDice+1]=" %  "
        else:
            playerPositions[p1Position]="    "
            playerPositions[p1Position+totalDice+1]=" %  "
        gridStorage(messages,playerPositions,player1PositionsValue,player2PositionsValue,positions)

#this function updates player 2's position and sends it to the grid to be displayed graphically
def moveP2(messages,playerPositions,player1PositionsValue,player2PositionsValue,positions):
    global creation
    temp11=input(messages[12])
    totalDice=diceRoll(messages)
    p1Position=player1PositionsValue.index(1)
    p2Position=player2PositionsValue.index(1)
    if p2Position+totalDice > 49:
        print(messages[15])
        win=True
        print(messages[16])
        ans=input(str("").lower())
        if ans == "yes" or ans == "y" or ans == "1":
            creation=False
            playerPositions=[]
            alternatingTurn(messages,playerPositions,player1PositionsValue,player2PositionsValue,positions)
        else:
            print(messages[17])
    else:
        player2PositionsValue[p2Position]=""
        player2PositionsValue[p2Position+totalDice+1]=1
        if p1Position == p2Position:
            playerPositions[p2Position]=" % &"
            playerPositions[p2Position+totalDice+1]="   &"
        else:
            playerPositions[p2Position]="    "
            playerPositions[p2Position+totalDice+1]="   &"
        gridStorage(messages,playerPositions,player1PositionsValue,player2PositionsValue,positions)

#this function welcomes the user to the program by printing messages in order
def welcome(messages):
    print(messages[2])
    print(messages[3])
    print(messages[4])
    print(messages[5])
    temp1=input()
    print(messages[6])
    temp1=input()
    print(messages[7])
    print(messages[8])
    print(messages[9])
    print(messages[10])

#this function runs through player 1 and 2's turns alternately
def alternatingTurn(messages,playerPositions,player1PositionsValue,player2PositionsValue,positions):
    global win
    messages=messagesReading()
    welcome(messages)
    playerPositions=gridStorage(messages,playerPositions,player1PositionsValue,player2PositionsValue,positions)
    while win == False:
        moveP1(messages,playerPositions,player1PositionsValue,player2PositionsValue,positions)
        moveP2(messages,playerPositions,player1PositionsValue,player2PositionsValue,positions)

#starts the program
alternatingTurn(messages,playerPositions,player1PositionsValue,player2PositionsValue,positions)