D. Thiebaut (talk) 07:29, 20 March 2018 (EDT)

Solution Programs

Problem 1

# hw6_1.py Rock Paper Scissors
# D. Thiebaut
# Solution program for Homework #8
# This program reads plays between two players from a text file.
# Each line in the text file contains 2 letters that are either R, P, or S.
# The first letter indicates the play by the first player, and the second
# letter the play by the second player.
# The program computes the winner of all the plays stored in the text
# file and outputs 1 if it's Player 1 (the first letter), 2 if it's Player 2 (the
# second letter, or 0 in case of a tie.
#

PLAYER1WINS= 1
PLAYER2WINS= 2
TIE        = 0
FILENAME   = "plays.txt"

# pickALetter: prompts the user for a letter, and doe not return
# until it is valid.

# playRound: plays a round between PLAYER1 and PLAYER2.
# returns the winner of the round (PLAYER1 or PLAYER2)
def playRound( player1, player2 ):

    if player1==player2:
        #print( "It's a tie!" )
        return TIE
    
    if ( player1=="P" and player2=="S" ) \
    or ( player1=="R" and player2=="P" ) \
    or ( player1=="S" and player2=="R" ):
        #print( "I win this round!" )
        return PLAYER2

    #print( "You win this round!" )
    return PLAYER1
 

# playRound: plays a round between PLAYER2 and PLAYER1.  PLAYER1
# picks a letter, PLAYER2 picks a letter at random.
# displays outcome of the game.  Returns winner
def playRound( p1, p2 ):
    
    # checks for ties
    if p1 == p2:
        return TIE

    # look at conditions where PLAYER2 wins
    if (p1=="P" and p2=="S")  \
    or (p1=="R" and p2=="P")  \
    or (p1=="S" and p2=="R"):
        return PLAYER2WINS

    # PLAYER1 must have won
    return PLAYER1WINS

        
# readFile: reads the contents of the file and returns it
# as a list of lines.
def readFile():
    list = []
    file = open( FILENAME, "r" )
    lines = file.readlines()
    file.close()

    # remove the "\n" at the end of each line
    # and make sure all characters are upper case
    plays = []
    for line in lines:
        plays.append( line.strip().upper() )
    return plays
    
# main: plays several rounds of the rock-paper-scissors game
# until one player gets 3 more points than the other.  Then
# displays the winner.
def main():
    
    # counters for winning rounds
    player1Count = 0
    player2Count = 0

    # read the text file with all the plays
    plays = readFile()
    
    for play in plays:
        player1 = play[0]
        player2 = play[1]
        
        winner = playRound( player1, player2 )
        if winner == PLAYER1WINS:
            player1Count += 1
        if winner == PLAYER2WINS:
            player2Count += 1
        

    # print 1 if player1 wins, 2 if player2 wins,
    # or 0 if tie
    if player1Count > player2Count:
        print( 1 )
    elif player1Count < player2Count:
        print( 2 )
    else:
        print( 0 )

main()

Problem 2

# hw6_2.py Rock Paper Scissors
# D. Thiebaut
# Solution program for Homework #8 Problem 2.
# This program reads plays between two players from a text file.
# Each line in the text file contains 2 letters that are either R, P, or S.
# The first letter indicates the play by the first player, and the second
# letter the play by the second player.
# The program computes the winner who is the player to get 3 points
# over the score of the other one.   The plays are taken from the same 
# text file as hw6_1.py.
# The program outputs 1 if Player 1 (the first letter) wins, 2 if it's Player 2 (the
# second letter, or 0 in case of a tie (but that shouldn't happen).
#


PLAYER1WINS= 1
PLAYER2WINS= 2
TIE        = 0
FILENAME   = "plays.txt"

# pickALetter: prompts the user for a letter, and doe not return
# until it is valid.

# playRound: plays a round between PLAYER1 and PLAYER2.
# returns the winner of the round (PLAYER1 or PLAYER2)
def playRound( player1, player2 ):

    if player1==player2:
        #print( "It's a tie!" )
        return TIE
    
    if ( player1=="P" and player2=="S" ) \
    or ( player1=="R" and player2=="P" ) \
    or ( player1=="S" and player2=="R" ):
        #print( "I win this round!" )
        return PLAYER2

    #print( "You win this round!" )
    return PLAYER1
 

# playRound: plays a round between PLAYER2 and PLAYER1.  PLAYER1
# picks a letter, PLAYER2 picks a letter at random.
# displays outcome of the game.  Returns winner
def playRound( p1, p2 ):
    
    # checks for ties
    if p1 == p2:
        return TIE

    # look at conditions where PLAYER2 wins
    if (p1=="P" and p2=="S")  \
    or (p1=="R" and p2=="P")  \
    or (p1=="S" and p2=="R"):
        return PLAYER2WINS

    # PLAYER1 must have won
    return PLAYER1WINS

        
# readFile: reads the contents of the file and returns it
# as a list of lines.
def readFile():
    list = []
    file = open( FILENAME, "r" )
    lines = file.readlines()
    file.close()

    # remove the "\n" at the end of each line
    # and make sure all characters are upper case
    plays = []
    for line in lines:
        plays.append( line.strip().upper() )
    return plays
    
# main: plays several rounds of the rock-paper-scissors game
# until one player gets 3 more points than the other.  Then
# displays the winner.
def main():
    
    # counters for winning rounds
    player1Count = 0
    player2Count = 0

    # read the text file with all the plays
    plays = readFile()
    
    for play in plays:
        
        player1 = play[0]
        player2 = play[1]
        
        winner = playRound( player1, player2 )
        if winner == PLAYER1WINS:
            player1Count += 1
        if winner == PLAYER2WINS:
            player2Count += 1

        # stop if one player gets 3 points over the other's score.
        if abs( player1Count - player2Count ) >= 3:
            break

    # print 1 if player1 wins, 2 if player2 wins,
    # or 0 if tie
    if player1Count > player2Count:
        print( 1 )
    elif player1Count < player2Count:
        print( 2 )
    else:
        print( 0 )

main()

Problem 3

# hw6_3.py Rock Paper Scissors
# D. Thiebaut
# Solution program for Homework #8 Problem 3.
# This program reads plays between two players from a text file which
# may contain invalid lines.
# Each line in the text file contains 2 letters that are either R, P, or S.
# The first letter indicates the play by the first player, and the second
# letter the play by the second player.
# The program computes the winner of all the plays stored in the text
# file and outputs 1 if it's Player 1 (the first letter), 2 if it's Player 2 (the
# second letter, or 0 in case of a tie.
#


PLAYER1WINS= 1
PLAYER2WINS= 2
TIE        = 0
FILENAME   = "plays.txt"

# pickALetter: prompts the user for a letter, and doe not return
# until it is valid.

# playRound: plays a round between PLAYER1 and PLAYER2.
# returns the winner of the round (PLAYER1 or PLAYER2)
def playRound( player1, player2 ):

    if player1==player2:
        #print( "It's a tie!" )
        return TIE
    
    if ( player1=="P" and player2=="S" ) \
    or ( player1=="R" and player2=="P" ) \
    or ( player1=="S" and player2=="R" ):
        #print( "I win this round!" )
        return PLAYER2

    #print( "You win this round!" )
    return PLAYER1
 

# playRound: plays a round between PLAYER2 and PLAYER1.  PLAYER1
# picks a letter, PLAYER2 picks a letter at random.
# displays outcome of the game.  Returns winner
def playRound( p1, p2 ):
    
    # checks for ties
    if p1 == p2:
        return TIE

    # look at conditions where PLAYER2 wins
    if (p1=="P" and p2=="S")  \
    or (p1=="R" and p2=="P")  \
    or (p1=="S" and p2=="R"):
        return PLAYER2WINS

    # PLAYER1 must have won
    return PLAYER1WINS

        
# readFile: reads the contents of the file and returns it
# as a list of lines.
def readFile():
    list = []
    file = open( FILENAME, "r" )
    lines = file.readlines()
    file.close()

    # remove the "\n" at the end of each line
    # and make sure all characters are upper case
    plays = []
    for line in lines:
        # strip the line and make it uppercase
        line = line.strip().upper()

        # reject lines that do not have 2 characters
        if len( line ) != 2:
            continue

        # test both characters and reject if not R, P, or S.
        for i in range( 2 ):
            if not line[i] in ["R", "P", "S" ]:
                continue

        # otherwise the line is good
        plays.append( line )

    # return the good lines
    return plays
    
# main: plays several rounds of the rock-paper-scissors game
# until one player gets 3 more points than the other.  Then
# displays the winner.
def main():
    
    # counters for winning rounds
    player1Count = 0
    player2Count = 0

    # read the text file with all the plays
    plays = readFile()
    
    for play in plays:
        
        player1 = play[0]
        player2 = play[1]
        
        winner = playRound( player1, player2 )
        if winner == PLAYER1WINS:
            player1Count += 1
        if winner == PLAYER2WINS:
            player2Count += 1

        # stop if one player gets 3 points over the other's score.
        if abs( player1Count - player2Count ) >= 3:
            break

    # print 1 if player1 wins, 2 if player2 wins,
    # or 0 if tie
    if player1Count > player2Count:
        print( 1 )
    elif player1Count < player2Count:
        print( 2 )
    else:
        print( 0 )

main()

Problem 4

# hw6_4.py Rock Paper Scissors
# D. Thiebaut
# Solution program for Homework #8 Problem 3.
# This program reads plays between two players from a text file which
# may contain invalid lines.
# Each line in the text file contains 2 letters that are either R, P, H, or S.
# The first letter indicates the play by the first player, and the second
# letter the play by the second player.
# The rules are the rules of Rock-Paper-Scissors, augmented with the
# following conditions:
#
# R H: Hole wins, as Rock falls in Hole
# H H: Tie
# S H: Hole wins, as Scissors fall in Hole
# H P: Paper wins, as paper covers Hole
#
# The program computes the winner of all the plays stored in the text
# file and outputs 1 if it's Player 1 (the first letter), 2 if it's Player 2 (the
# second letter, or 0 in case of a tie.
#


PLAYER1WINS= 1
PLAYER2WINS= 2
TIE        = 0
FILENAME   = "plays.txt"

# pickALetter: prompts the user for a letter, and doe not return
# until it is valid.

# playRound: plays a round between PLAYER1 and PLAYER2.
# returns the winner of the round (PLAYER1 or PLAYER2)
def playRound( player1, player2 ):

    if player1==player2:
        #print( "It's a tie!" )
        return TIE

    if ( player1=="P" and player2=="S" ) \
    or ( player1=="R" and player2=="P" ) \
    or ( player1=="S" and player2=="R" ) \
    or ( player1=="R" and player2=="H" ) \
    or ( player1=="S" and player2=="H" ):
        #print( "I win this round!" )
        return PLAYER2WINS

    #print( "You win this round!" )
    return PLAYER1WINS
 

 
        
# readFile: reads the contents of the file and returns it
# as a list of lines.
def readFile():
    list = []
    file = open( FILENAME, "r" )
    lines = file.readlines()
    file.close()

    # remove the "\n" at the end of each line
    # and make sure all characters are upper case
    plays = []
    for line in lines:
        # strip the line and make it uppercase
        line = line.strip().upper()

        # reject lines that do not have 2 characters
        if len( line ) != 2:
            continue

        # test both characters and reject if not R, P, or S.
        for i in range( 2 ):
            if not line[i] in ["R", "P", "S", "H" ]:
                continue

        # otherwise the line is good
        plays.append( line )

    # return the good lines
    return plays
    
# main: plays several rounds of the rock-paper-scissors game
# until one player gets 3 more points than the other.  Then
# displays the winner.
def main():
    
    # counters for winning rounds
    player1Count = 0
    player2Count = 0

    # read the text file with all the plays
    plays = readFile()
    #print( plays )
    
    # keep track of number of plays
    count = 0
    for play in plays:
        count += 1
        
        player1 = play[0]
        player2 = play[1]
        
        winner = playRound( player1, player2 )
        if winner == PLAYER1WINS:
            player1Count += 1
        if winner == PLAYER2WINS:
            player2Count += 1

        #print( player1, player2, player1Count, player2Count, count )
        
        # stop if one player gets 3 points over the other's score.
        if abs( player1Count - player2Count ) >= 3:
            break

    # print 1 if player1 wins, 2 if player2 wins,
    # or 0 if tie
    if player1Count > player2Count:
        print( 1, count )
    elif player1Count < player2Count:
        print( 2, count )
    else:
        print( 0, count )

main()

Problem #5

#hw6_5.py
from graphics import *
from random import *

def main():
    win = GraphWin( "CSC111 Homework 6", 600, 600 )

    for x in range( 0, 600, 25 ):
        for y in range( 0, 600, 25 ):
            r = Rectangle( Point( x, y ), Point( x+25, y+25 ) )
            red = randint( 0, 255 )
            green = randint( 0, 255 )
            blue = (red+green)//2
            r.setFill( color_rgb( red, green, blue ) )
            r.draw( win )

    r = Rectangle( Point(100,250), Point( 600-100, 600-250 ) )
    r.setFill( "white" )
    r.draw( win )
    
    t = Text( Point(300,300), "CSC111 Homework 6" )
    t.draw( win )
    
    win.getMouse()
    win.close()

main()

</showafterdate>

CSC111 Homework 6 2018

Contents

Solution Programs

Problem 1

Problem 2

Problem 3

Problem 4

Problem #5

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