Making a game with B4PPC

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pmu5757

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• Oct 27, 2009

• #1

Hello,
I'm trying to make a game with B4PPC.
The room where it takes place is big (3000 X 3000 pix).
It's bigger than any form I can create.
So I want that the form could "see" only a part of the room.
To do that, I used sprites : yhe jpg file where I've drawn the background is not set as the background of the game window, but is the image of a sprite that I called "map".
So, during the game I make move this map-sprite, so the player believes that he moves.
It works, but moving a so big sprite is maybe not the better idea...
Any better idea ?

Thank you.

 

klaus

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• Oct 27, 2009

• #2

You could also use the ImageLibEx with a 3000*3000 pixel bitmap and then copy the needed part of the bitmap onto the form.
I used this in drawing and map programs.
You can have a look here: http://www.b4x.com/forum/share-your-creations/3945-draw-program.html or here http://www.b4x.com/forum/share-your-creations/3674-scaled-maps.html

Best regards.

 

P

pmu5757

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• Oct 27, 2009

• #3

Thank you Klaus for your answer, but I'm afraid I don't understand your two examples. They seem to be to complicated for me :-(
I've read your subs but I can't find the place where the part of the image is drawn on the form.
Woul you have something more simple for a beginner like me ?
Thank you.

 

klaus

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• Oct 27, 2009

• #4

Here you have an example with the minimum you'll need.
You need the ImageLibEx and ControlEx libraries.
The included bitmap is smaller than your's but the principle is the same.

Best regards.

 

P

pmu5757

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• Oct 27, 2009

• #5

Thank you Klaus.
I understand now.
I'm gonna try to use it, but without the scrollbars : im my game, it's the movements of other sprites that wil make the background move.

Best regards.

 

klaus

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• Oct 27, 2009

• #6

I was aware that the ScrollBars would not be usefull for you, but they show how to change the coordinates to move the image.​

Bonne chance pour la suite !​

Best regards.​

 

P

pmu5757

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• Nov 8, 2009

• #7

Hello,
I tried the idiea of Klaus.
But here is my problem now : in the same program, I also use sprites. So I have a gamewindow for my sprites and it seems that the gamewindows is above the image I've included with the imagelibex dll. So the image can't be seen.
:BangHead:
Could someone help me ?
Thank you

 

klaus

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• Nov 18, 2009

• #8

Here you have a small sample program with a moving background image and a sprite.

Best regards.

 

P

pmu5757

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• Apr 18, 2010

• #9

Hello everybody,
And thank you Klaus trying to help me.

I used the example proposed by Klaus in my code.
When I run it, I have the error message joined in this post.

It's strange, because, using the debug tools, I noticed that it occurs the second time the sub "drawgraph" is called : the first time it works.

I also joined my code in this post.
The lines concerned are between 109 and 182

Thank you.

 

Z

Zenerdiode

Active Member

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• Apr 18, 2010

• #10

B4X:

Sub drawgraph
   bmpGameWindow[COLOR="Red"][B]s[/B][/COLOR].Dispose
   drwGameWindow.Dispose
   AddObject("bmpGameWindow","BitmapEx")
   AddObject("drwGameWindow","DrawerEx")
   bmpGameWindow.New2(formx,formy)
   drwGameWindow.New2(bmpGameWindow.Value)
   drwGameWindow.DrawImage(bmpImage.Value,rectSource.Value,rectDest.Value,False)
   gamewindow.DrawBackgroundImage2(bmpGameWindow.Value)
End Sub

Is it anything to do with your object being plural in places?

 

P

pmu5757

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• Apr 19, 2010

• #11

I can't answer your question : I'm afraid I don't really undersdand how it works.
I just copied code from example given by Klaus.
I think you could have a look at this example to understand what kind of thing I'm trying to do.
This example is in this thread.

Thank you.

 

P

pmu5757

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• Apr 20, 2010

• #12

Hello
I found another solution : I started with the example proposed by Klaus and I injected in it my code, my objects and my controls.
I did that using a temporary module.

Thank you.

 

klaus

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• Apr 24, 2010

• #13

Hi pmu5757,

I had a look at your program and have some comments.
Are you porting the program from VB ?

- the error you got in post #9 , like Zenerdiode pointed out, came from bmpGameWindows.Dispose.
- there are other typos in there: Ibouton.Texte must be Ibouton.Text
- lines Goto fin2, Goto fin3 can be replaced by Return
- be careful with the other Goto's, B4PPC is more tricky with Goto's than VB
- Goto debut with debut: not beeing in the same routine will not work, could be replaced by démarrer.Show
- Goto li could be replaced by:
liquidation
Return.
- Goto oups replaced by toure
-
Table2.LoadCSV (AppPath & "\parties\" sel.Text & ".csv", ",", True, True)
should be
Table2.LoadCSV (AppPath & "\parties\" & sel.Text & ".csv", ",", True, True)

I couldn't look further because of missing pictures.
I answer only today, I was on travel during the last 5 days.

Best regards.