How do I change the resolution dynamically?

[nightm4re94]

^{This post has been migrated automatically from the old LITIENGINE forum (2018 - 2022).
Posted: 2020-03-10 15:05:10
User: Hyler [] (age: 965 days 🙌; posts: 2)}
Good morning,
I'm trying to get my feet wet with LITIengine. and I need some help. One of the first things I wanted to try is set the window resolution with code, as the application is running. However, all I have been able to achieve is to change the config file, which causes the application to have the new resolution the next time it's run.
What I mean by this is that my code apparently produces changes in the config file, so if I change the code, recompile, run, I see the old resolution, as the config file gets updated with the newly-changed code. Then if I exit the application and start it again, it has the new resolution.
I have tried using Game.config().graphics().setResolution*, both before and after Game.init(), but the window never changes until the application is restarted and it reads the new config file. I also tried adding a configuration group, but that just caused a mix of settings in the config file (with similar results).
How do I change the resolution (and enable/disable scaling) dynamically, as the application is running? I want to see the window change size dynamically, for example I could bind the resolution change to a key event, etc.
Thank you for your help.

• - g

[nightm4re94]

^{This post has been migrated automatically from the old LITIENGINE forum (2018 - 2022).
Posted: 2020-03-10 21:27:22
User: steffen [Admin 👑, Mod 🔧] (age: 1568 days 🔥; posts: 100)}
Hi Hyler,
Thanks for your question. To set the resolution of the game at runtime, you need to call:

// the static Resolution classes provide common resolutions in different ratios
Game.window().setResolution(Resolution.Ratio4x3.RES_1024x768);
// create custom resolutions with
Resolution custom = Resolution.custom(1234, 555, "my-resolution")

For that, you should also decide whether you want to scale the graphics proportionally:

Game.config().graphics().enableResolutionScaling()

If you want to persistently store the changed resolution, you can save it in the configuration (as you did is your previous post)

Game.config().graphics().setResolution(...)

Also, if you use the default DisplayMode.WINDOWED, you can just resize the window with your mouse.
Hope this helps :)

[nightm4re94]

^{This post has been migrated automatically from the old LITIENGINE forum (2018 - 2022).
Posted: 2020-03-11 14:19:07
User: Hyler [] (age: 965 days 🙌; posts: 2)}
Thank you, steffen, for the help. This is exactly what I was asking for, and it works.
Edit: I'm leaving the original reply up (below), but looking at the commit history, I think what happened is that you added the other resolutions right around the time you replied to my message, but I'm using a version of the engine from two days ago.
But now I have another question. For the 4x3 resolutions, the only one I can use is 1024x768, everything else throws a error: cannot find symbol, such as for example:
symbol: variable RES_1152x864 location: class Ratio4x3
So then I tried enumerating the resolutions:

List<Resolution> res;
res = Resolution.Ratio4x3.getAll();
for (Resolution r : res)
 System.out.println(r.toDimensionString());

The only output from this is 1024x768. However, if I change the above code to:
res = Resolution.Ratio16x9.getAll();
Then I get this list:

1280x720
1360x768
1366x768
1536x864
1600x900
1920x1080
2560x1440

Looking at litiengine/src/de/gurkenlabs/litiengine/gui/screens/Resolution.java, line 100, I was expecting to be able to use any of the predefined 4x3 resolutions, but I cannot.
I am sorry to be so stupid, but what am I doing wrong? Thank you once again.

• g

[nightm4re94]

^{This post has been migrated automatically from the old LITIENGINE forum (2018 - 2022).
Posted: 2020-03-14 13:48:51
User: steffen [Admin 👑, Mod 🔧] (age: 1568 days 🔥; posts: 100)}
Well, you are right, I added additional 4x3 resolutions in the master branch after reading this post. These will be available in the next release. You could always define custom resolutions as mentioned above.