Allegro
entt
Allegro | entt | |
---|---|---|
24 | 79 | |
1,765 | 9,469 | |
1.2% | - | |
8.3 | 9.8 | |
7 days ago | 8 days ago | |
C | C++ | |
GNU General Public License v3.0 or later | MIT License |
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Allegro
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Not only Unity...
Allegro (zlib/plain C) https://github.com/liballeg/allegro5
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Allegro library website redirected to anti-Kotaku Nazi-related page
Some nutjob has taken control of https://liballeg.org to redirect it to some anti-Nazi page that mentions Kotaku, comparing them to nazis.
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Self taught developers, what did you know when you started?
C, C++, Allegro, SDL, Some rudimentary SQL, Some basic BSD Sockets. But I also took some time to learn 3D math, trigonometry and linear algebra so I can include some basic 3D examples in my portfolio. I was later told that it was the 3D math that made the difference because if I (barely finished HS) can do that I can probably learn everything they give me.
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Recourses to make games like they did in the 90s?
Wow, DJGPP and Allegro (still going!), that takes me back - that and Bloodshed IDE were my weapons of choice back then!
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What are some of your favourite tools/libraries/frameworks to visualize or prototype something
liballeg.org
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Looking for a very basic 2d graphics library
allegro 5 is quite alright with fonts
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What are some cool modern libraries you enjoy using?
allegro5 is a great rendering library if you want to get something 2D on the screen fast
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Are there other examples of people who made games with their own engines like Minecraft ?
Hell, their website says in the first few sentences it isn't an engine.
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Where to start?
A while ago I was getting started with the Allegro5 game engine (+Rust bindings). It's the same engine used for Factorio. I wrote a simple egui-integration to have nicer UI options. It was mostly for myself and is thus poorly documented but maybe you get some ideas how to make it work.
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Resources for C++
Here's a simple program using Allegro
entt
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Using Jolt with flecs & Dear ImGui: Game Physics Introspection
EnTT is a popular alternative to flecs for C++, which has different performance/memory characteristics.
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Focus: A simple and fast text editor written in Jai
https://pastebin.com/VPypiitk This is a very small experiment i did to learn the metaprogramming features. its an ECS library using the same model as entt (https://github.com/skypjack/entt). In 200 lines or so it does the equivalent of a few thousand lines of template heavy Cpp while compiling instantly and generating good debug code.
Some walkthrough:
Line 8 declares a SparseSet type as a fairly typical template. its just a struct with arrays of type T inside. Next lines implement getters/setters for this data structure
Line 46 Base_Registry things get interesting. This is a struct that holds a bunch of SparseSet of different types, and providers getters/setters for them by type. It uses code generation to do this. The initial #insert at the start of the class injects codegen that creates structure members from the type list the struct gets on its declaration. Note also how type-lists are a native structure in the lang, no need for variadics.
Line 99 i decide to do variadic style tail templates anyway for fun. I implement a function that takes a typelist and returns the tail, and the struct is created through recursion as one would do in cpp. Getters and setters for the View struct are also implemented through recursion
Line 143 has the for expansion. This is how you overload the for loop functionality to create custom iterators.
The rest of the code is just some basic test code that runs the thing.
- Crash Course: entity component system
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Introducing Ecsact
Since we wanted a common game simulation that would be on both the server and the client we looked into a few libraries that would fit our ECS needs. It was decided we were going to write this common part of our game in C++, but rust was considered. C++ was a familiar language for us so naturally EnTT and flecs came up right away. I had used EnTT before, writing some small demo projects, so our choice was made based on familiarity. In order to integrate with Unity we created a small C interface to communicate between our simulation code and Unity’s C#. Here’s close to what it looked like. I removed some parts for brevity sake.
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Sharing Saturday #472
Are you sure you don't want to use a C++ package manager? Libtcod is on Vcpkg and with that setup you could add the fmt library or EnTT. fmt fixes C++'s string handling and EnTT fixes everything wrong with the entities of the previous tutorials.
- Where can I find the juiciest, most complex and modern c++ code?
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What are the limits of blueprints?
There's also a performance question. While we can now use Blueprint nativization to convert Blueprints to C++ the result will be a fairly naive version, fast enough for most purposes but not if you're trying to push every bit of performance. This is where you're looking at making sure you're hitting things such as using the CPU cache as well as possible for an ECS system (Look at ENTT or Flecs if you want to see what they're about and why you'd want one), or a system needing to process massive amounts of data quickly such as the Voxel Plugin.
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any resources for expanding on ECS?
For a modern engine you’re probably best looking at Unity’s DOTS. You may also want to check out some of the different open source ECS libraries such as flecs and EnTT are two popular ones for C++, but there’s lots of them. Largely you’ll see lots of different approaches taken, all with their own pros and cons. Not all of them will be performant (some focus more on the design benefits) while others will be optimised for certain use cases. What you should prioritise will depend on your specific needs.
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DynaMix 2.0.0 Released
You can think of DynaMix as combining one of these libraries with an ECS like entt(https://github.com/skypjack/entt)
- Flecs – A fast entity component system for C and C++
What are some alternatives?
raylib - A simple and easy-to-use library to enjoy videogames programming
flecs - A fast entity component system (ECS) for C & C++
Cocos2d - Cocos2d-x is a suite of open-source, cross-platform, game-development tools utilized by millions of developers across the globe. Its core has evolved to serve as the foundation for Cocos Creator 1.x & 2.x.
Hazel - Hazel Engine
GLFW - A multi-platform library for OpenGL, OpenGL ES, Vulkan, window and input
Godot - Godot Engine – Multi-platform 2D and 3D game engine
flecs-lua - Lua script host for flecs
Spring RTS game engine - A powerful free cross-platform RTS game engine. - Report issues at https://springrts.com/mantis/
Roguelike-Tutorial-2021 - Roguelike tutorial written hard with GDscript
Oxygine - Oxygine is C++ engine and framework for 2D games on iOS, Android, Windows, Linux and Mac
UnrealCLR - Unreal Engine .NET 6 integration