question 1
JustBasic allows you to use file from your computer to load into your program. Use some specific examples to explain the advantages of importing files from your computer into your program.
question 2
Modify the Tic-tac-toe program Below
1. Modify the Tic-tac-toe program to add two little windows on each side of the “Start Game” button: On the left, first window will say “Player X Turn” only when Player X needs to play and second window will say “Wins” to keep count of payer X wins. On the right-hand side of the “Start Game” button, do the same for “Player O”.
‘ *************************************************************************
‘
‘ Script Name: TicTacToe.bas (The Tic Tac Toe Game)
‘ Version: 1.0
‘ Author: Jerry Lee Ford, Jr.
‘ Date: March 1, 2007
‘
‘ Description: This game is a Just BASIC implementation of the classic
‘ children’s Tic Tac Toe game. This game pits two players
‘ against one another to see who can line up three
‘ consecutive characters in a row.
‘
‘ *************************************************************************
nomainwin ‘Suppress the display of the default text window
‘Assign default values to global variables
global currentPlayer$, noMoves
global a1$, a2$, a3$, b1$, b2$, b3$, c1$, c2$, c3$
currentPlayer$ = “X” ‘Player X always starts off each game
call ManageGamePlay ‘Call the subroutine responsible for managing game play
wait ‘Pause the application and wait for the player’s instruction
‘This subroutine displays the game board and controls interaction with the
‘player
sub ManageGamePlay
WindowWidth = 400 ‘Set the width of the window to 500 pixels
WindowHeight = 500 ‘Set the height of the window to 500 pixels
loadbmp “_”, “C:images_.bmp” ‘Load the specified bitmap
‘file into memory
loadbmp “O”, “C:imageso.bmp” ‘Load the specified bitmap
‘file into memory
loadbmp “X”, “C:imagesx.bmp” ‘Load the specified bitmap
‘file into memory
‘Define the format of statictext controls displayed on the window
statictext #play.statictext1, “T I C T A C T O E”, 45, 20, 440, 30
statictext #play.statictext2, “Copyright 2007”, 265, 55, 80, 20
‘Add nine bmpbutton controls representing the game board to the window
‘First column
bmpbutton #play.a1, “C:images_.bmp”, ProcessMove, UL, 45, 90
bmpbutton #play.a2, “C:images_.bmp”, ProcessMove, UL, 150, 90
bmpbutton #play.a3, “C:images_.bmp”, ProcessMove, UL, 255, 90
‘Second column
bmpbutton #play.b1, “C:images_.bmp”, ProcessMove, UL, 45, 194
bmpbutton #play.b2, “C:images_.bmp”, ProcessMove, UL, 150, 194
bmpbutton #play.b3, “C:images_.bmp”, ProcessMove, UL, 255, 194
‘Third column
bmpbutton #play.c1, “C:images_.bmp”, ProcessMove, UL, 45, 298
bmpbutton #play.c2, “C:images_.bmp”, ProcessMove, UL, 150, 298
bmpbutton #play.c3, “C:images_.bmp”, ProcessMove, UL, 255, 298
‘Add the game’s button control to the window
button #play.button1 “Start New Game”, ResetGameBoard, UL, _
147, 420, 100, 30
‘Open the window with no frame and a handle of #play
open “Tic Tac Toe” for window_nf as #play
‘Set up the trapclose event for the window
print #play, “trapclose ClosePlay”
‘Set the font type, size and attributes
print #play.statictext1, “!font Arial 24 bold”
print #play.button1, “!setfocus”; ‘Set focus to the button control
‘Pause the application and wait for the player’s instruction
wait
end sub
‘This subroutine processes player moves, deciding when moves are
‘valid and invalid and assigning game board squares accordingly
sub ProcessMove handle$
‘Set up a select case code block to process player moves
select case handle$
case “#play.a1” ‘The player selects the 1st square on the 1st row
if a1$ = “” then ‘Let the player have the square if its available
a1$ = currentPlayer$ ‘Assign the square to the current player
print #play.a1, “bitmap ” + currentPlayer$ ‘Display bitmap image
else
notice “Sorry, but this square is already assigned. Try again!”
exit sub ‘There is no need to keep going so exit the subroutine
end if
case “#play.a2” ‘The player selects the 2nd square on the 1st row
if a2$ = “” then ‘Let the player have the square if its available
a2$ = currentPlayer$ ‘Assign the square to the current player
print #play.a2, “bitmap ” + currentPlayer$ ‘Display bitmap image
else
notice “Sorry, but this square is already assigned. Try again!”
exit sub ‘There is no need to keep going so exit the subroutine
end if
case “#play.a3” ‘The player selects the 3rd square on the 1st row
if a3$ = “” then ‘Let the player have the square if its available
a3$ = currentPlayer$ ‘Assign the square to the current player
print #play.a3, “bitmap ” + currentPlayer$ ‘Display bitmap image
else
notice “Sorry, but this square is already assigned. Try again!”
exit sub ‘There is no need to keep going so exit the subroutine
end if
case “#play.b1” ‘The player selects the 1st square on the 2nd row
if b1$ = “” then ‘Let the player have the square if its available
b1$ = currentPlayer$ ‘Assign the square to the current player
print #play.b1, “bitmap ” + currentPlayer$ ‘Display bitmap image
else
notice “Sorry, but this square is already assigned. Try again!”
exit sub ‘There is no need to keep going so exit the subroutine
end if
case “#play.b2” ‘The player selects the 2nd square on the 2nd row
if b2$ = “” then ‘Let the player have the square if its available
b2$ = currentPlayer$ ‘Assign the square to the current player
print #play.b2, “bitmap ” + currentPlayer$ ‘Display bitmap image
else
notice “Sorry, but this square is already assigned. Try again!”
exit sub ‘There is no need to keep going so exit the subroutine
end if
case “#play.b3” ‘The player selects the 3rd square on the 2nd row
if b3$ = “” then ‘Let the player have the square if its available
b3$ = currentPlayer$ ‘Assign the square to the current player
print #play.b3, “bitmap ” + currentPlayer$ ‘Display bitmap image
else
notice “Sorry, but this square is already assigned. Try again!”
exit sub ‘There is no need to keep going so exit the subroutine
end if
case “#play.c1” ‘The player selects the 1st square on the 3rd row
if c1$ = “” then ‘Let the player have the square if its available
c1$ = currentPlayer$ ‘Assign the square to the current player
print #play.c1, “bitmap ” + currentPlayer$ ‘Display bitmap image
else
notice “Sorry, but this square is already assigned. Try again!”
exit sub ‘There is no need to keep going so exit the subroutine
end if
case “#play.c2” ‘The player selects the 2nd square on the 3rd row
if c2$ = “” then ‘Let the player have the square if its available
c2$ = currentPlayer$ ‘Assign the square to the current player
print #play.c2, “bitmap ” + currentPlayer$ ‘Display bitmap image
else
notice “Sorry, but this square is already assigned. Try again!”
exit sub ‘There is no need to keep going so exit the subroutine
end if
case “#play.c3” ‘The player selects the 3rd square on the 3rd row
if c3$ = “” then ‘Let the player have the square if its available
c3$ = currentPlayer$ ‘Assign the square to the current player
print #play.c3, “bitmap ” + currentPlayer$ ‘Display bitmap image
else
notice “Sorry, but this square is already assigned. Try again!”
exit sub ‘There is no need to keep going so exit the subroutine
end if
end select
noMoves = noMoves + 1 ‘Increment the variable representing the number of
‘moves made so far in this game
‘Call the subroutine responsible for determining when the game is over
call LookForEndOfGame
‘Call the subroutine responsible for controlling whose turn it is
call SwitchPlayerTurn
end sub
‘This subroutine is responsible for switching between Player X and
‘Player O’s turns
sub SwitchPlayerTurn
‘If Player X just went then it is Player O’s turn
if currentPlayer$ = “X” then
currentPlayer$ = “O” ‘Make Player O the current player
exit sub ‘There is no need to keep going so exit the subroutine
end if
‘If Player O just went then it is Player X’s turn
if currentPlayer$ = “O” then
currentPlayer$ = “X” ‘Make Player X the current player
exit sub ‘There is no need to keep going so exit the subroutine
end if
end sub
‘This subroutine is called at the end of each player’s turn and is
‘responsible for determining if the game is over
sub LookForEndOfGame
‘Look horizontally for a winner
‘Check the first column
if (a1$ = currentPlayer$) and (a2$ = currentPlayer$) and _
(a3$ = currentPlayer$) then
notice “Player ” + currentPlayer$ + ” has won!”
exit sub ‘There is no need to keep going so exit the subroutine
end if
‘Check the second column
if (b1$ = currentPlayer$) and (b2$ = currentPlayer$) and _
(b3$ = currentPlayer$) then
notice “Player ” + currentPlayer$ + ” has won!”
exit sub ‘There is no need to keep going so exit the subroutine
end if
‘Check the third column
if (c1$ = currentPlayer$) and (c2$ = currentPlayer$) and _
(c3$ = currentPlayer$) then
notice “Player ” + currentPlayer$ + ” has won!”
exit sub ‘There is no need to keep going so exit the subroutine
end if
‘Look vertically for a winner
‘Check the first row
if (a1$ = currentPlayer$) and (b1$ = currentPlayer$) and _
(c1$ = currentPlayer$) then
notice “Player ” + currentPlayer$ + ” has won!”
exit sub ‘There is no need to keep going so exit the subroutine
end if
‘Check the second row
if (a2$ = currentPlayer$) and (b2$ = currentPlayer$) and _
(c2$ = currentPlayer$) then
notice “Player ” + currentPlayer$ + ” has won!”
exit sub ‘There is no need to keep going so exit the subroutine
end if
‘Check the third row
if (a3$ = currentPlayer$) and (b3$ = currentPlayer$) and _
(c3$ = currentPlayer$) then
notice “Player ” + currentPlayer$ + ” has won!”
exit sub ‘There is no need to keep going so exit the subroutine
end if
‘Look diagonally for a winner
‘Check from the top-left corner down to the lower-right corner
if (a1$ = currentPlayer$) and (b2$ = currentPlayer$) and _
(c3$ = currentPlayer$) then
notice “Player ” + currentPlayer$ + ” has won!”
exit sub ‘There is no need to keep going so exit the subroutine
end if
‘Check from the top-right corner down to the lower-left corner
if (a3$ = currentPlayer$) and (b2$ = currentPlayer$) and _
(c1$ = currentPlayer$) then
notice “Player ” + currentPlayer$ + ” has won!”
exit sub ‘There is no need to keep going so exit the subroutine
end if
‘If neither player has won and all squares have been chosen the game
‘ends in a tie
if noMoves = 9 then
notice “Tie. There was no winner this time!”
end if
end sub
‘This subroutine resets the game board and global variables in order to
‘ready the game for a new round of play
sub ResetGameBoard handle$
‘Display a blank bitmap image in each game board square
print #play.a1, “bitmap _”
print #play.a2, “bitmap _”
print #play.a3, “bitmap _”
print #play.b1, “bitmap _”
print #play.b2, “bitmap _”
print #play.b3, “bitmap _”
print #play.c1, “bitmap _”
print #play.c2, “bitmap _”
print #play.c3, “bitmap _”
‘Clear out any game board square assignments
a1$ = “”
a2$ = “”
a3$ = “”
b1$ = “”
b2$ = “”
b3$ = “”
c1$ = “”
c2$ = “”
c3$ = “”
noMoves = 0 ‘Reset the variable used to keep track of the total number
‘of moves made per game to zero
currentPlayer$ = “X” ‘Set Player X as the current player
end sub
‘This subroutine is called when the player closes the #play window
‘and is responsible for ending the game
sub ClosePlay handle$
‘Get confirmation before terminating program execution
confirm “Are you sure you want quit?”; answer$
if answer$ = “yes” then ‘The player clicked on Yes
close #play ‘Close the #play window
end ‘Terminate the game
end if
end sub