Help with battleships VBA code

Z

zakwilce

New Member
Joined
Apr 19, 2018
Messages
5
I've been stuck on this for so long, i have no idea how to fix the bugs that keep occurring. Please could someone point out the bugs i have made and how to fix them.

Code: 
Sub draw_ship(lengthy, board)
Dim completed As Integer
Dim sum As Integer
Dim i As Integer
Dim iy As Integer
Dim iend As Integer


Randomize


completed = 0
Do While (completed = 0)
  ix = Int((((9 - lengthy)) - 0 + 1) * Rnd() + 0)
  iy = Int((9 - 0 + 1) * Rnd() + 0)
  sum = 0
  iend = ix + lengthy - 1
  For i = ix To iend Step 1
    sum = sum + board(iy, i)
  Next i
  If (sum = 0) Then
    Rem paint in ship
    For i = ix To iend Step 1
      board(iy, i) = lengthy
    Next i
    completed = 1
  End If
Loop
End Sub
Sub pick_a_square(ix, y)
  Dim inputted As Integer
  inputted = InputBox("Please enter 2 coord digits")
  iy = Int(inputted / 10#)
  ix = inputted Mod 10
End Sub
Sub battleships()
Dim board(10, 10) As Integer
Dim i As Integer
Dim j As Integer
Dim ix As Integer
Dim iy As Integer
Dim ship As Integer
Dim totally(5) As Integer
Dim fleet(4) As Integer
Dim score As Integer




Rem initialize the boards
For j = 0 To 9 Step 1
  For i = 0 To 9 Step 1
    board(j, i) = 0
    Cells(3 + j, 8 + i).Value = " "
  Next i
Next j


Rem now initialise the fleet No. of squares not sunk
fleet(4) = 1 * 5 ' aircraft carrier 5 squares long
fleet(3) = 2 * 4 ' battleship 4 squares long
fleet(2) = 3 * 3 ' frigate 3 squares long
fleet(1) = 4 * 2 ' mine sweeper 2 squares long


Rem now let VBA fill up the board with ships
For i = 1 To 10
  If (i = 1) Then ' Aircraft Carrier
    ship = 5
    Call draw_ship(ship, bored)
  End If
  If ((i >= 2) And (i <= 3)) Then ' Battleship
    ship = 4
    Call draw_ship(ship, board)
  End If
  If ((i >= 4) And (i <= 6)) Then ' Frigate
    ship = 3
    Call draw_ship(ship, board)
  End If
  If ((i >= 7) And (i <= 20)) Then ' Mine Sweeper
    ship = 2
    Call draw_ship(ship, board)
  End If
Next i


Rem now we let the human user go and blow up all the ships
score = 0
Do While (score < 30)
  Call pick_a_square(ix, iy)
  ship = board(iy, ix)
  If (ship > 0) Then
    Cells(3 + iy, 8 + ix).Value = "X"
    score = score + 1
  Else
    Cells(3 + iy, 8 + ix).Value = "-"
  End If
  Cells(13, 4).Value = score
  If (ship < 0) Then fleet(ship) = fleet(ship) - 1
  For i = 2 To 5 Step 1
    totally(i) = fleet(i) / i
  Next i
  Cells(5, 4).Value = totally(3) ' Aircraft carrier
  Cells(7, 4).Value = totally(4) ' Battleship
  Cells(9, 4).Value = totally(3) ' Frigate
  Cells(11, 4).Value = totally(2) ' Mine Sweeper
Loop
  
End Sub
 
Last edited by a moderator:
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Another prob
Code: 
Sub pick_a_square(ix, [COLOR=#ff0000]y[/COLOR])
  Dim inputted As Integer
  inputted = InputBox("Please enter 2 coord digits")
  [COLOR=#ff0000]iy [/COLOR]= Int(inputted / 10#)
  ix = inputted Mod 10
End Sub
As WBD said out Option Explicit at the very top of the module. That will help to flush out typos
 
Upvote 0

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Thanks for the help guys, I've tried what you've said and it's almost there. Now i have a problem with the number of ships being drawn. I should have 4 Mine sweepers (which i do), 3 Frigates (which i do), 2 battleships(which i do) and 1 Aircraft carrier( but i have 3 instead of 1). Here's the updated vba:

Code: 
[COLOR=#333333]Option Explicit[/COLOR]
Sub draw_ship(lengthy, board)
Dim completed As Integer
Dim sum As Integer
Dim i As Integer
Dim iy As Integer
Dim iend As Integer


Randomize


completed = 0
Do While (completed = 0)
  ix = Int((((9 - lengthy)) - 0 + 1) * Rnd() + 0)
  iy = Int((9 - 0 + 1) * Rnd() + 0)
  sum = 0
  iend = ix + lengthy - 1
  For i = ix To iend Step 1
    sum = sum + board(iy, i)
  Next i
  If (sum = 0) Then
    Rem paint in ship
    For i = ix To iend Step 1
      board(iy, i) = lengthy
    Next i
    completed = 1
  End If
Loop
End Sub
Sub pick_a_square(ix, iy)
  Dim inputted As Integer
  inputted = InputBox("Please enter 2 coord digits")
  iy = Int(inputted / 10#)
  ix = inputted Mod 10
End Sub
Sub battleships()
Dim board(10, 10) As Integer
Dim i As Integer
Dim j As Integer
Dim ix As Integer
Dim iy As Integer
Dim ship As Integer
Dim totally(5) As Integer
Dim fleet(5) As Integer
Dim score As Integer




Rem initialize the boards
For j = 0 To 9 Step 1
  For i = 0 To 9 Step 1
    board(j, i) = 0
    Cells(3 + j, 8 + i).Value = " "
  Next i
Next j


Rem now initialise the fleet No. of squares not sunk
fleet(5) = 1 * 5 ' aircraft carrier 5 squares long
fleet(4) = 2 * 4 ' battleship 4 squares long
fleet(3) = 3 * 3 ' frigate 3 squares long
fleet(2) = 4 * 2 ' mine sweeper 2 squares long


Rem now let VBA fill up the board with ships
For i = 1 To 10
  If (i = 1) Then ' Aircraft Carrier
    ship = 5
    Call draw_ship(ship, board)
  End If
  If ((i >= 2) And (i <= 3)) Then ' Battleship
    ship = 4
    Call draw_ship(ship, board)
  End If
  If ((i >= 4) And (i <= 6)) Then ' Frigate
    ship = 3
    Call draw_ship(ship, board)
  End If
  If ((i >= 7) And (i <= 20)) Then ' Mine Sweeper
    ship = 2
    Call draw_ship(ship, board)
  End If
Next i


Rem now we let the human user go and blow up all the ships
score = 0
Do While (score < 30)
  Call pick_a_square(ix, iy)
  ship = board(iy, ix)
  If (ship > 0) Then
    Cells(3 + iy, 8 + ix).Value = "X"
    score = score + 1
  Else
    Cells(3 + iy, 8 + ix).Value = "-"
  End If
  Cells(13, 4).Value = score
  If (ship < 0) Then fleet(ship) = fleet(ship) - 1
  For i = 2 To 4 Step 1
    totally(i) = fleet(i) / i
  Next i
  Cells(5, 4).Value = totally(3) ' Aircraft carrier
  Cells(7, 4).Value = totally(4) ' Battleship
  Cells(9, 4).Value = totally(3) ' Frigate
  Cells(11, 4).Value = totally(2) ' Mine Sweeper
Loop
  
End Sub
 
Last edited by a moderator:
Upvote 0
Doesnt fix your problem but


Code: 
  If ((i >= 7) And (i <= 20)) Then ' Mine Sweeper
    ship = 2
    Call draw_ship(ship, board)
  End If

Your i loop only goes up to 10, so this should be 10 not 20
 
Last edited:
Upvote 0
Special-K99 said:
Doesnt fix your problem but


Code: 
  If ((i >= 7) And (i <= 20)) Then ' Mine Sweeper
    ship = 2
    Call draw_ship(ship, board)
  End If

Your i loop only goes up to 10, so this should be 10 not 20
Click to expand...

Ahh yes, thank you. I think i've got the vba to work now. It seems to be doing what i want now. Thank you for the help everyone
 
Upvote 0
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