UDP network library [german]

gnozal · Post by **gnozal** » Wed Jun 04, 2003 2:58 pm

News from the german forum :

PureFan has released an UDP network library, downloadable at http://www.adventuretipps.de/purebasic/udpnetwork/ (in german)

GERMAN FORUM :

Die erste Version der UDPNetwork - Library ist fertig!!!

Im Gegenteil zu TCP-IP hat diese Ãœbertragungsart keine Empfang-BestÃ¤tungs-Protokolle. Deshalb ist sie viel schneller und damit auch fÃ¼r z.B. Spiele geeignet.

Im Moment unterstÃ¼tzt die Library folgende Befehle

Code:
- EasyUDPSend
- UDPCloseConnection
- UDPCloseServer
- UDPConnectServer
- UDPCreateServer
- UDPDataAvailable
- UDPEndCaptureEvents
- UDPGetLocalIP
- UDPGetUserIP
- UDPGetUserPort
- UDPHostByAlias
- UDPInitNetwork
- UDPIsAvailable
- UDPLoadUserID
- UDPReceive
- UDPSaveUserID
- UDPSend
- UDPSendToUser
- UDPStartCaptureEvents
- UDPWaitUntilReceive

Diese Library wurde in handoptimiertem Assembler programmiert!
Sie wurde bereits von mehreren Personen im Chat getestet und funktionierte Ã¼berall einwandfrei!

Die Hilfe dazu und die Library selbst findet ihr hier::

http://www.adventuretipps.de/purebasic/udpnetwork/

Ich wÃ¼rde mich sehr Ã¼ber Feedbacks freuen

Post by **Rings** » Wed Jun 04, 2003 3:19 pm

english translation will be follow this week.stay tuned

Henrik · Post by **Henrik** » Wed Jun 04, 2003 5:34 pm

Now this post i consider importent

And english Yes thank you

Bedst Regards
Henrik.

Post by **Berikco** » Wed Jun 04, 2003 7:21 pm

Very nice work

tinman · Post by **tinman** » Wed Jun 04, 2003 9:45 pm

> UDPConnectServer

I thought UDP didn't have such things as connections?

Nice to see such a useful library appear though.

Sebi · Post by **Sebi** » Thu Jun 05, 2003 5:18 pm

Hello all,

> UDPConnectServer
I thought UDP didn't have such things as connections?
Nice to see such a useful library appear though.

You are right. But this command receives the IP of the server and opens a socket. I don't think there is another way to do that...

Now the english help is available, too!!

http://www.adventuretipps.de/purebasic/udpnetwork_eng/

Examples are coming soon.....

Thanks to Rings for the translation

PureFan or Sebi

coma · Post by **coma** » Fri Aug 29, 2003 4:53 pm

Thanks for this UDP lib :)

But I'm looking for examples using this library.
I have try this, but it don't work :

Code: Select all

;FOR THE SERVER

*buffer = AllocateMemory(0, 1000, 0)
Port = 6832
test.UDPConnect

UDPInitNetwork() 
UDPCreateServer(port, test.UDPConnect)
UDPStartCaptureEvents (test) 

Repeat
    ExamineKeyboard()
    If  UDPReceive (test, *buffer, 4) 
       x=PeekW(*buffer)
       y=PeekW(*buffer+2)
    EndIf
Until KeyboardPushed(#PB_Key_Escape) 

UDPEndCaptureEvents (test) 
UDPCloseServer (test) 
End

and this for the client :

Code: Select all

;FOT THE CLIENT
 
*buffer = AllocateMemory(0, 1000, 0)
Port = 6832
test.UDPconnect

UDPInitNetwork() 
UDPConnectServer(port, "217.128.179.97", test) 
        
Repeat
    ExamineKeyboard()
    PokeW(*buffer, x)
    PokeW(*buffer+2, y)
    UDPSend(test, *buffer, 4)

    FlipBuffers() 
Until KeyboardPushed(#PB_Key_Escape) 

UDPCloseConnection(test)
End

Paul · Post by **Paul** » Fri Aug 29, 2003 6:09 pm

Your code works fine if you just add a few extra lines that are needed to actually compile it

Turn your debugger on and run the server...

Code: Select all

;FOR THE SERVER 

*buffer = AllocateMemory(0, 1000, 0) 
Port = 6832 
test.UDPConnect 

UDPInitNetwork() 
UDPCreateServer(port, test.UDPConnect) 
UDPStartCaptureEvents (test) 

If OpenWindow(0,0,0,300,200,#PB_Window_SystemMenu,"Server")
  Repeat
    Delay(1)    
    If  UDPReceive (test, *buffer, 4) 
       x=PeekW(*buffer) 
       y=PeekW(*buffer+2)
       Debug Str(x)+".."+Str(y) 
    EndIf 
  Until WindowEvent()=#PB_Event_CloseWindow 
EndIf

UDPEndCaptureEvents (test) 
UDPCloseServer (test) 
End

Now run the client (on the same computer) and press A or B. The debugger window will show that the info is getting through.

Code: Select all

;FOR THE CLIENT 
InitKeyboard()
InitSprite()

*buffer = AllocateMemory(0, 1000, 0) 
Port = 6832 
test.UDPconnect 

UDPInitNetwork() 
UDPConnectServer(port, "127.0.0.1", test) 


If OpenWindow(0,0,0,200,100,#PB_Window_SystemMenu|#PB_Window_ScreenCentered,"")
  If OpenWindowedScreen(WindowID(),0,0,640,480,0,0,0)=0:End:EndIf
EndIf

        
Repeat 
    ExamineKeyboard() 
    If KeyboardReleased(#PB_Key_A)
      PokeW(*buffer, 1) 
      PokeW(*buffer+2, 2) 
      UDPSend(test, *buffer, 4)
    EndIf
    If KeyboardReleased(#PB_Key_B)
      PokeW(*buffer, 3) 
      PokeW(*buffer+2, 4) 
      UDPSend(test, *buffer, 4)
    EndIf

    FlipBuffers() 
Until KeyboardPushed(#PB_Key_Escape) 

UDPCloseConnection(test) 
End

It works fine here so if you are getting nothing, maybe you have a firewall running that is blocking your ports?

coma · Post by **coma** » Sat Aug 30, 2003 5:49 pm

ok, now it works, but when I receive data, my program slow down, on the server.

on the server, my main loop look like this :

Code: Select all

Repeat
    ExamineKeyboard()
    ExamineMouse()

    StartDrawing (ScreenOutput())
        // here, some drawing stuff (I draw a plot at player2x,player2y coordinates)
    StopDrawing()


    If  UDPReceive (test, *buffer, 4) 
        player2x=PeekW(*buffer)
        player2y=PeekW(*buffer+2)
    EndIf

       FlipBuffers() 
Until KeyboardPushed(#PB_Key_Escape)

with the client, I send data every 10 frames :

Code: Select all

Repeat
    ExamineKeyboard()
    ExamineMouse()

    StartDrawing (ScreenOutput())
        //some drawing here
    StopDrawing()

    If sendfreq=0
        PokeW(*buffer, playerx)
        PokeW(*buffer+2, playery)
        UDPSend(test, *buffer, 4)
    EndIf
    sendfreq+1 :  If sendfreq>10 : sendfreq=0 : EndIf

    // here I update player positions

    FlipBuffers() 
Until KeyboardPushed(#PB_Key_Escape)

There's any slow down on client. Only on the server when it receive a message from the client.

DoubleDutch · Post by **DoubleDutch** » Sun Jul 11, 2004 10:24 pm

Is it possible that this library be updated for the new linker?

NoahPhense · Post by **NoahPhense** » Mon Jul 12, 2004 12:45 am

Very nice work. The docs so far are impeccable. A lib without good docs
is just a file..

Again, very sweet..

- np

DoubleDutch · Post by **DoubleDutch** » Mon Jul 12, 2004 7:59 am

huh?

NP: have you got a version of this lib that works on 3.91?

NoahPhense · Post by **NoahPhense** » Mon Jul 12, 2004 4:13 pm

DoubleDutch wrote:huh?

NP: have you got a version of this lib that works on 3.91?

No, I have not yet tried this library. I was just comending them on such
a nice lib to have created. It's the type of library that helps bring PB up
a notch. As well, it shows that people still have big plans for PB.

I will follow this lib as it developes.

- np

DoubleDutch · Post by **DoubleDutch** » Mon Jul 12, 2004 5:04 pm

it is a really good lib, it should be part of the standard package (if someone does a linux version of the commands).

its just a pity it doesn't work with the latest version!

maybe they could make the source available for updating?

PureBasic Forums - English

UDP network library [german]

UDP network library [german]

Re: UDP network library [german]

..