ecs-faq
esper
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ecs-faq
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Show HN: Interactive ECS Systems/Component Explorer for Cities: Skylines 2
The Wikipedia article provides a broad overview, while this FAQ offers a more systematic exploration: https://github.com/SanderMertens/ecs-faq
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Sparsey 0.11.0 Release - Better Performance
Sparsey is an Entity Component System focused on flexibility, conciseness and providing features exclusive to its sparse set-based implementation.
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Beginner looking for code review : my ECS lib !
For further reading, here is a great article about these different approaches within Rust specifically: https://csherratt.github.io/blog/posts/specs-and-legion/ and here is a great general resource for commonly-used terms and techniques in ECS development: https://github.com/SanderMertens/ecs-faq
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Ways to create game engines
Godot has a node based system (nodes can have child nodes linked to them, and there are different types of nodes for the type of functionality they represent). Another alternative could be a more OOP approach (utilising inheritance as the main means of extending functionality), not aware of any modern engines that take this approach anymore. It’s also worth noting that ECS implementations can differ wildly, this faq from the flecs creator has a good rundown on what some of different variants are.
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Is ECS really the way to go in C++?
You might wanna take a look at https://github.com/SanderMertens/ecs-faq, it lays this all out better than I can.
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Flecs 3.2, a high performance game development framework for C and C++ is out!
To find more about ECS, see the FAQ: https://github.com/SanderMertens/ecs-faq/blob/master/README.md
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Functional relational programming model in Clojure(Script)
Using the relational model for app data in memory is really interesting.
Martin Fowler wrote about doing that as a way to get around the "object-relational mismatch" issue[1]. Richard Fabian describes "data-oriented design" as having a lot of overlap with the relational model[2]. ECSes becoming very popular in game engines are basically in-memory relational databases where "components" are "tables"[3].
[1]: https://martinfowler.com/bliki/OrmHate.html
[2]: https://dataorienteddesign.com/dodbook/
[3]: https://github.com/SanderMertens/ecs-faq#what-is-ecs
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does an ECS system need unique identifier ( uuid ) ?
This is the ECS FAQ I'm currently using.
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What are some things you have used ECS for?
While Unity's DOTS/ECS is positioned as solving performance issues for large numbers of objects, there are a number of other advantages. See https://github.com/SanderMertens/ecs-faq for a more in-depth look. IMHO the reusability and extensibility ECS encourages is as valuable as any performance increase. Compared to the GameObject style, which encourages random state mutations and side-effects, ECS enforces a more functional style, which results in code that is easier to reason about and test.
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Dominion VS Artemis, the missing benchmarks (link in the comments)
thanks, i think a little more background on the ECS world will help you get the context, this is from the author of Flecs: https://github.com/SanderMertens/ecs-faq
esper
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RoguelikeDev Does The Complete Roguelike Tutorial Starting July 4th 2023
That's cool, I didn't realize you had implemented an ECS library for tcod. At first glance it seems a bit more featureful than esper. The tags and relations functionality seem particularly useful for queries. l'll consider using it for the tutorial.
- what is the best way to learn pygame from 0?
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does an ECS system need unique identifier ( uuid ) ?
If you don't mind the broken type hinting then you could go with Esper.
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Sharing Saturday #382
I've been closely looking at the Python ECS libraries Snecs and Esper. I was hoping I could use one of them to fix the Python tutorial without making the tutorial about writing an entity-component engine. What I actually want would be a Python ECS library with NumPy for static types, but a library I did find for that didn't have a good enough license for a tutorial. For now I'll be okay with dynamic types just so I can fix my current problems, and I'll think about performance some other time.
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Trying to get the camera to track the player using esper.py in pygame. Getting a black screen instead.
I've been attempting to do this using an entity-component-system (specifically the Esper system). The difference being that I'm trying to explain my processors in separate documents first.
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Small game I'm currently working on
Not much to see/to do yet. I just wanted to try Esper and LDtk.
What are some alternatives?
Node RED - Low-code programming for event-driven applications
snecs - A straightforward, nimble ECS for Python
dominion-ecs-java - Insanely fast ECS (Entity Component System) for Java
pyglet - pyglet is a cross-platform windowing and multimedia library for Python, for developing games and other visually rich applications.
EntityComponentSystemSamples
Pygame - 🐍🎮 pygame (the library) is a Free and Open Source python programming language library for making multimedia applications like games built on top of the excellent SDL library. C, Python, Native, OpenGL.
entt - Gaming meets modern C++ - a fast and reliable entity component system (ECS) and much more
Summoing Pixel Dungeon - The expansion for Shattered Pixel Dungeon
Superstar-Game-Suite - A top-down 2D game creation suite for platforming, world building, and story telling.
Eggster - A game made for the Pygame Community Easter Jam 2023
ygopro - A script engine for "yu-gi-oh!" and sample gui
EuroRogue - ASCII Roguelike with Euro Strategy Board Game Influences