ImGui Docking in Java LWJGL | Coding a 2D Game Engine in Java #28

[@abdullahgulcur8737]

I just discovered your videos and helped me a lot while working on my custom engine using c++. Thanks!

[@GamesWithGabe]

No problem Abdullah! I'm also working on a C++ engine on the side and know how difficult it can be to get things working properly haha. Also check out The Cherno because he has some great C++ tutorials for game engines too :)

[@evangelionxyz]

I'm still waiting for the c++ version here, hopefully it is coming fast

[@1ai_13x]

Hey Gabe, I'm worried about what you said about Java and the C++ advantages, the game engines made for Java like Libgdx or Jmonkey are not good?

[@GamesWithGabe]

I wouldn’t worry too much about that :) C++ definitely has some advantages because of the way you can manipulate memory, but the game engines for Java should provide enough abstraction that you don’t have to worry about that stuff.

[@icaroamorim3123]

Thank you very much really usefull.

[@baconskittles778]

I have a problem. Whenever I create the dockspace, it opens two windows. One of the windows is the dockspace and functions correctly. The other is just blank. Do you have any ideas why this might happen?

[@voxelrifts]

Docking! yay. Unfortunately no viewport support. Yet.

[@GamesWithGabe]

I know :/ Hopefully the developer will add the bindings soon though :)

[@winterSweet-k4m]

btw what were your resources to learn LWJGL? I'm gonna follow up your tutorial series ( I just found it tho) But I need one or two more resources to get really deep into it, can name your books/tutorials?

[@GamesWithGabe]

I have a bunch of books listed in the description, but they're mainly for game development in general. I don't have much for lwjgl specifically, but learnopengl.com is great for learning opengl (it's c++, but translates pretty easily to Java). Also check out ThinMatrix, he has some great videos on LWJGL as well :)

[@winterSweet-k4m]

I subscribed with my both youtube accounts

[@GamesWithGabe]

Thanks @W4rd3nyclyffe ! That helps me out a ton :)

[@kniiig]

I get an error "Assertion failed: g.WithinFrameScope, file /tmp/imgui/jni/imgui.cpp, line 6140" Not sure where to find the actual file im using because I dont see any asserts on line 6140 in imgui.cpp when I search the web. If I comment out setupDockspace the program works. Any idea what could cause this or how I can find out exactly what file and line it is through intelliJ?

[@GamesWithGabe]

It can be a bit tricky to find the proper line sometimes, but it looks like you were pretty close. github.com/ocornut/imgui/blob/8dfb52245bc92fef3e58b14f88135bd75a28faf8/imgui.cpp#L6168 It says you probably forgot to call newFrame :)

[@kniiig]

@@GamesWithGabe I did put setupDockspace() call before ImGui.newFrame(). Thanks alot! Btw, are you still planning on doing an engine in c++? I got pretty stoked when you talked about it a few videos ago. You have a knack of explaining things thats better than most of these series on youtube

[@GamesWithGabe]

@@kniiig No problem! And I plan on doing a series on how to code a voxel game in C++ next, it's probably going to be a different format then this series though :)