Physics behavior bug when creating objects

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xanderwood

- Nabu
- - Joined 14 Feb, 2015
  - 45 topics • 210 posts
- 1
- 19 Jun, 2015
- Quote
Problem Description

Physics behavior bug / crash when creating objects on the fly

Attach a Capx

https://www.dropbox.com/s/et90z0zdwswqepe/physics_bug.capx?dl=0

Description of Capx

Simple layout with physic objects. Left mouse click to spawn coins high rate.

Steps to Reproduce Bug

Just spawn some objects with left mouse click, (hundreds of them, it's fast) and the crash will happen.

Observed Result

App crash with physics behavior related debug data.

Affected Browsers
- Chrome: (YES)
- FireFox: (YES)
- Internet Explorer: (YES)
- Safari: (YES)
- NodeWebkit export: (YES)
Operating System and Service Pack

Windows 7 SP 1

Construct 2 Version ID

r208 beta
- j0schi
- - Joined 8 Oct, 2014
  - 64 topics • 305 posts
- 1
- 20 Jun, 2015
- Quote
Thanks for reopening, saw it a little late that you aleready have done it <img src="{SMILIES_PATH}/icon_e_smile.gif" alt=":)" title="Smile">

so here is my approach, with the impulse, but its the same with just 1 event

https://drive.kyberon.net/index.php/s/KHAI25894cFYOoS pw: demo

Confirmed for

Affected Browsers

Chrome: (YES)

FireFox: (YES)

Internet Explorer: (YES)

Operating System and Service Pack

Windows 8.1
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- Ashley Construct Team Founder
- Moderator
- - Joined 21 May, 2007
  - 669 topics • 30,359 posts
- 1
- 1 Jul, 2015
- Quote
asm.js physics uses a fixed size memory buffer for maximum performance. Currently it's set at 16mb. I've increased it to 32mb for the next build so you can go twice as far before you get this error, but I can't just increase it to say 512mb because AFAIK it always uses that much memory, so we need to balance the memory overhead with the number of objects you can create.
- Nabu
- - Joined 14 Feb, 2015
  - 45 topics • 210 posts
- 1
- 3 Jul, 2015
- Quote
Ok, thanks for the fix and explanations. In some projects the bug is still here when there's only few objects though.

After testing, the problem is not solved. I still get bugs with physic objects created on the fly.
- Reginaldoev
- - Joined 23 Oct, 2017
  - 0 topics • 1 posts
- 1
- 15 Dec, 2017
- Quote
I have the same problem !

Does anyone have the solution?
- Nabu
- - Joined 14 Feb, 2015
  - 45 topics • 210 posts
- 1
- 23 Dec, 2017
- Quote
Hello Reginaldoev,

I don't know if the problem is solved, but I remember that since I switched to the external physics plugin Chipmunk, which is better in some ways. You have more flexible collision conditions filtering for example, and collision groups with ids and hexadecimal. And that solved many obscur problems I had with built in physics behavior, box2D or asm.js.

So I encourage you to give a try.

Best regards, and happy Christmas !