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digitalmars.D.announce - Bubel ECS - Entity-Component-System architecture implementation

reply Mergul <wismerchil interia.eu> writes:
Hello everyone, I'm glad to announce release of my Bubel ECS 
library.

Bubel ECS is Entity-Component-System architectural pattern 
implementation in D language.
Library aims to delivery fast and flexible architecture for 
developing games. It's  nogc and betterC compatible. WASM is 
supported through Emscripten. Library has no external 
dependencies and was tested on Linux, Windows, Android and WASM.
Project was developed in data oriented designed fashion and 
supports multithreading with automatic job generation. For more 
information go to Gitlab repository page.

Its beta version but core is fully functional and finished. I 
have planned some bigger features like Worlds support, better 
events handling or even C-API which can lead to some changes in 
API.

If you want try Bubel ECS I prepared demo which works in browers 
through WASM (Emscripten) and even supports multithreading (on 
Chromium based browsers, Firefox had some performance issues even 
on single threaded version when last tested)
Demo is still WIP and it can be hard to understad how it works 
(how to use its features). There is possibility to enable/disable 
almost all systems in runtime and changing components and data 
for all entities. All components and systems are exact 
representation of what they are in code.

I'm using Gitlab CI for automated testing (betterC testing 
included)

Note: Library support multithreading but has no code for actual 
parallel execution, it only generates jobs and dependencies. In 
demos I'm using mmutils.thread_pool (my brother's library) .I 
will add simple integration code for it in near future for people 
who wants multithreading working out-of-the-box.

Dub: https://code.dlang.org/packages/bubel_ecs
Gitlab: https://gitlab.com/Mergul/bubel-ecs
Documentation: https://mergul.gitlab.io/bubel-ecs/ecs.html
Wiki: https://gitlab.com/Mergul/bubel-ecs/-/wikis/home (WIP I've 
started making tutorial there)
Online demo: https://mergul.gitlab.io/bubel-ecs/ecs_demo.html
Mar 08 2021
next sibling parent drug <drug2004 bk.ru> writes:
On 3/8/21 10:45 PM, Mergul wrote:

 Hello everyone, I'm glad to announce release of my Bubel ECS library.
 
 Bubel ECS is Entity-Component-System architectural pattern 
 implementation in D language.
 Library aims to delivery fast and flexible architecture for developing 
 games. It's  nogc and betterC compatible. WASM is supported through 
 Emscripten. Library has no external dependencies and was tested on 
 Linux, Windows, Android and WASM.
 Project was developed in data oriented designed fashion and supports 
 multithreading with automatic job generation. For more information go to 
 Gitlab repository page.
 
 Its beta version but core is fully functional and finished. I have 
 planned some bigger features like Worlds support, better events handling 
 or even C-API which can lead to some changes in API.
 
 If you want try Bubel ECS I prepared demo which works in browers through 
 WASM (Emscripten) and even supports multithreading (on Chromium based 
 browsers, Firefox had some performance issues even on single threaded 
 version when last tested)
 Demo is still WIP and it can be hard to understad how it works (how to 
 use its features). There is possibility to enable/disable almost all 
 systems in runtime and changing components and data for all entities. 
 All components and systems are exact representation of what they are in 
 code.
 
 I'm using Gitlab CI for automated testing (betterC testing included)
 
 Note: Library support multithreading but has no code for actual parallel 
 execution, it only generates jobs and dependencies. In demos I'm using 
 mmutils.thread_pool (my brother's library) .I will add simple 
 integration code for it in near future for people who wants 
 multithreading working out-of-the-box.
 
 Dub: https://code.dlang.org/packages/bubel_ecs
 Gitlab: https://gitlab.com/Mergul/bubel-ecs
 Documentation: https://mergul.gitlab.io/bubel-ecs/ecs.html
 Wiki: https://gitlab.com/Mergul/bubel-ecs/-/wikis/home (WIP I've started 
 making tutorial there)
 Online demo: https://mergul.gitlab.io/bubel-ecs/ecs_demo.html
 


Nice package! I'm glad you publish it
Mar 08 2021
prev sibling next sibling parent reply Meta <jared771 gmail.com> writes:
On Monday, 8 March 2021 at 19:45:58 UTC, Mergul wrote:

 Hello everyone, I'm glad to announce release of my Bubel ECS 
 library.

 Bubel ECS is Entity-Component-System architectural pattern 
 implementation in D language.
 Library aims to delivery fast and flexible architecture for 
 developing games. It's  nogc and betterC compatible. WASM is 
 supported through Emscripten. Library has no external 
 dependencies and was tested on Linux, Windows, Android and WASM.
 Project was developed in data oriented designed fashion and 
 supports multithreading with automatic job generation. For more 
 information go to Gitlab repository page.

 Its beta version but core is fully functional and finished. I 
 have planned some bigger features like Worlds support, better 
 events handling or even C-API which can lead to some changes in 
 API.

 If you want try Bubel ECS I prepared demo which works in 
 browers through WASM (Emscripten) and even supports 
 multithreading (on Chromium based browsers, Firefox had some 
 performance issues even on single threaded version when last 
 tested)
 Demo is still WIP and it can be hard to understad how it works 
 (how to use its features). There is possibility to 
 enable/disable almost all systems in runtime and changing 
 components and data for all entities. All components and 
 systems are exact representation of what they are in code.

 I'm using Gitlab CI for automated testing (betterC testing 
 included)

 Note: Library support multithreading but has no code for actual 
 parallel execution, it only generates jobs and dependencies. In 
 demos I'm using mmutils.thread_pool (my brother's library) .I 
 will add simple integration code for it in near future for 
 people who wants multithreading working out-of-the-box.

 Dub: https://code.dlang.org/packages/bubel_ecs
 Gitlab: https://gitlab.com/Mergul/bubel-ecs
 Documentation: https://mergul.gitlab.io/bubel-ecs/ecs.html
 Wiki: https://gitlab.com/Mergul/bubel-ecs/-/wikis/home (WIP 
 I've started making tutorial there)
 Online demo: https://mergul.gitlab.io/bubel-ecs/ecs_demo.html


Awesome! In the demo, I noticed that if there are >3000 entities 
spawned, there will be periodic dips in the FPS. Could this be 
Javascript's GC kicking in?
Mar 09 2021
parent reply Mergul <wismerchil interia.eu> writes:
On Tuesday, 9 March 2021 at 14:29:37 UTC, Meta wrote:

 Awesome! In the demo, I noticed that if there are >3000 
 entities spawned, there will be periodic dips in the FPS. Could 
 this be Javascript's GC kicking in?


What browser are you using? I've tested couple of browsers. In 
general JavaScript shouldn't be a problem, from what I know WASM 
only growth its memory. Library itself almost never call malloc 
(so memory is always allocated). On firefox I had problem with 
FPS most of a time and I'm not sure what cause this problem (I 
found several bug reports which could be related to that). 
Besides Firefox every web browser I tested was based on chromium 
engine. I didn't see any periodic dips, even with <200k entities.
Maybe there is some problem related to WebGL or JS Workers. When 
JS side detects that WASM threads are enabled in browser it loads 
multithreaded version of WASM code and spawn workers. But overall 
multithreaded execution is always more stable for me.

Another thing is that application has to work in the "unblocking" 
way. It means that main thread has to release control to web 
browser every frame and browser sometime takes more CPU time.

And last thing, I'm not specialist in web technologies so it 
could be something else what I'm not aware of :)
Mar 09 2021
next sibling parent reply ryuukk_ <ryuukk_ gmail.com> writes:
That's impressive, and shows the D capabilities, the future is 
WASM!!! glad to see D ready for it!

I'm working on a similar project, thanks for sharing, it'll be 
very helpful for me!
Mar 09 2021
parent reply Meta <jared771 gmail.com> writes:
On Tuesday, 9 March 2021 at 16:36:31 UTC, ryuukk_ wrote:

 That's impressive, and shows the D capabilities, the future is 
 WASM!!! glad to see D ready for it!


Yes, I forgot to mention this, but WASM support out of the box is 
awesome!
Mar 09 2021
parent Mergul <wismerchil interia.eu> writes:
On Tuesday, 9 March 2021 at 21:01:07 UTC, Meta wrote:

 On Tuesday, 9 March 2021 at 16:36:31 UTC, ryuukk_ wrote:

 That's impressive, and shows the D capabilities, the future is 
 WASM!!! glad to see D ready for it!


 Yes, I forgot to mention this, but WASM support out of the box 
 is awesome!


I have to note that for clarification. D can be compiled to WASM 
only using betterC switch (as nor Phobos or Druntime can be 
compiled to WASM). For demo I also used SDL2 which also supports 
Emscripten target. From my side to support WASM I had to remove 
D's TLS from code (in demo I used pthread_key as replacement), 
implement atomic operations using Emscripten API, write stdc 
bindings and my little std library (allocators). While targeting 
WASM core.stdc.* modules can't be used as they have no WASM 
implementation.



That's impressive, and shows the D capabilities, the future is 
WASM!!! glad to see D ready for it!



 Thanks for an excellent release!



 Nice package! I'm glad you publish it


Many thanks for your kind words.



 I'm working on a similar project, thanks for sharing, it'll be 
 very helpful for me!


Fell free to ask any questions if you want. Demo code isn't 
documented (except some demos files) and looks messy in places.
Mar 09 2021
prev sibling parent reply Meta <jared771 gmail.com> writes:
On Tuesday, 9 March 2021 at 15:21:26 UTC, Mergul wrote:

 On Tuesday, 9 March 2021 at 14:29:37 UTC, Meta wrote:

 Awesome! In the demo, I noticed that if there are >3000 
 entities spawned, there will be periodic dips in the FPS. 
 Could this be Javascript's GC kicking in?


 What browser are you using? I've tested couple of browsers. In 
 general JavaScript shouldn't be a problem, from what I know 
 WASM only growth its memory. Library itself almost never call 
 malloc (so memory is always allocated). On firefox I had 
 problem with FPS most of a time and I'm not sure what cause 
 this problem (I found several bug reports which could be 
 related to that). Besides Firefox every web browser I tested 
 was based on chromium engine. I didn't see any periodic dips, 
 even with <200k entities.
 Maybe there is some problem related to WebGL or JS Workers. 
 When JS side detects that WASM threads are enabled in browser 
 it loads multithreaded version of WASM code and spawn workers. 
 But overall multithreaded execution is always more stable for 
 me.


This is in Chrome 88.0.4324.192 on my 2015 Macbook Pro.
Mar 09 2021
parent James Blachly <james.blachly gmail.com> writes:
On 3/9/21 4:02 PM, Meta wrote:

 On Tuesday, 9 March 2021 at 15:21:26 UTC, Mergul wrote:

 On Tuesday, 9 March 2021 at 14:29:37 UTC, Meta wrote:

 Awesome! In the demo, I noticed that if there are >3000 entities 
 spawned, there will be periodic dips in the FPS. Could this be 
 Javascript's GC kicking in?


 What browser are you using? I've tested couple of browsers. In general 
 JavaScript shouldn't be a problem, from what I know WASM only growth 
 its memory. Library itself almost never call malloc (so memory is 
 always allocated). On firefox I had problem with FPS most of a time 
 and I'm not sure what cause this problem (I found several bug reports 
 which could be related to that). Besides Firefox every web browser I 
 tested was based on chromium engine. I didn't see any periodic dips, 
 even with <200k entities.
 Maybe there is some problem related to WebGL or JS Workers. When JS 
 side detects that WASM threads are enabled in browser it loads 
 multithreaded version of WASM code and spawn workers. But overall 
 multithreaded execution is always more stable for me.


 
 This is in Chrome 88.0.4324.192 on my 2015 Macbook Pro.


Interesting; Here on a 2012 Macbook pro with Firefox I have consistent 
60 FPS even at 3500 elements with no periodic drops
Mar 10 2021
prev sibling parent Guillaume Piolat <first.name spam.org> writes:
On Monday, 8 March 2021 at 19:45:58 UTC, Mergul wrote:

 Hello everyone, I'm glad to announce release of my Bubel ECS 
 library.

 Bubel ECS is Entity-Component-System architectural pattern 
 implementation in D language.
 Library aims to delivery fast and flexible architecture for 
 developing games. It's  nogc and betterC compatible. WASM is 
 supported through Emscripten. Library has no external 
 dependencies and was tested on Linux, Windows, Android and WASM.
 Project was developed in data oriented designed fashion and 
 supports multithreading with automatic job generation. For more 
 information go to Gitlab repository page.


Thanks for an excellent release!
Mar 09 2021