Greating game on visual basic with multiplayer system

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Greating game on visual basic with multiplayer system

2

AUTOMATIC SYSTEM

GREATING GAME ON VISUAL BASIC WITH MULTIPLAYER SYSTEM

Dushanbe, 2009

Main Interface

Source Code

Public lanchoice As Long 'address

Public details As String 'names

Public connected As Boolean 'if connected

Private Sub Form_Load ()

Connect. Icon = LoadResPicture ("ictac", vbResIcon) 'form icon

If usermode = "host" Then

join. Enabled = False

Else

host. Enabled = False

gamename. Visible = False

Label5. Visible = False

End If

End Sub

Private Sub Form_QueryUnload (Cancel As Integer, UnloadMode As Integer)

'call on form cancel or exit by control box on form

If connectionmade = False Then

MainBoard. hostagame. Enabled = True

MainBoard. joinagame. Enabled = True

Call CloseDownDPlay

multiplayermode = False

End If

MainBoard. Enabled = True

End Sub

Private Sub host_Click ()

On Error GoTo NO_Hosting ' error handler in case creating host fails

If playersname = "" Or gamename = "" Then

MsgBox "You must enter a Players name and Game Name", vbOKOnly, "Tic Tac Oops"

Exit Sub

End If

Call goplay 'starts direct play object

Dim address As DirectPlayAddress

'Selects which choice was made for lan

Set address = EnumConnect. GetAddress (lanchoice)

'Binds address to directplay connection

Call dxplay. InitializeConnection (address)

'Starts sessiondata information

Dim SessionData As DirectPlaySessionData

Set SessionData = dxplay. CreateSessionData

Call SessionData. SetMaxPlayers (2)

Call SessionData. SetSessionName (gamename. Text)

Call SessionData. SetFlags (DPSESSION_MIGRATEHOST)

Call SessionData. SetGuidApplication (AppGuid)

'Starts a new session initializes connection

Call dxplay. Open (SessionData, DPOPEN_CREATE)

'Create Player profile

Dim PlayerName As String

Dim playerhandle As String

PlayerName = playersname. Text

profilename = PlayerName

playerhandle = "Player (Host)"

MyPlayer = dxplay. CreatePlayer (PlayerName, playerhandle, 0, 0)

dxHost = True

gameopen. Caption = gamename. Text

Call updatedisplay 'Updates game list

Label8. Caption = "Waiting for other Players"

Exit Sub

NO_Hosting:

MsgBox "Could not Host Game", vbOKOnly, "Try Again"

End Sub

Private Sub join_Click ()

On Error GoTo Oops

Call goplay

Dim address As DirectPlayAddress

Set address = EnumConnect. GetAddress (lanchoice)

Call dxplay. InitializeConnection (address)

Dim details2 As Byte

Dim SessionData As DirectPlaySessionData

Set SessionData = dxplay. CreateSessionData

'Gets Session any open session info

Set EnumSession = dxplay. GetDPEnumSessions (SessionData, 0, DPENUMSESSIONS_AVAILABLE)

Set SessionData = EnumSession. GetItem (1)

'Get open session name

details = SessionData. GetSessionName

If details > "" And usermode = "client" Then

joingame. Enabled = True

End If

Call updatedisplay

gameopen. Caption = details

Exit Sub

Oops:

MsgBox "Connection Failed", vbOKOnly, "Tic Tac Oops"

Exit Sub

End Sub

Public Function goplay ()

Set dxplay = dx7. DirectPlayCreate ("") 'open directplay object

'gets connection types

Set EnumConnect = dxplay. GetDPEnumConnections ("", DPCONNECTION_DIRECTPLAY)

End Function

Private Sub joingame_Click ()

On Error GoTo Joinfailed

If playersname = "" Then

MsgBox "You must enter a Players name", vbOKOnly, "Tic Tac Oops"

Exit Sub

End If

Dim SessionData As DirectPlaySessionData

Set SessionData = EnumSession. GetItem (1)

'Joins open session

Call dxplay. Open (SessionData, DPOPEN_JOIN)

'creats and sends player info

PlayerName = playersname. Text

profilename = PlayerName

playerhandle