User reported issue: collide ball outside of reflecting border

[oliver-phet]

Reported via phethelp, reproduced using various conditions:

1. Explore 1D
2. Max/min balls
3. Position A -.5, velocity .5m/s
4. Position B 0, velocity .5m/s
5. Elasticity to 90% (various issues occur at any value <100%)

I'm noticing a lot of weird issues that may be unrelated to reflecting border and seem to show up when Mass B >= 2.8kg

Name: ‪Collision Lab‬ URL: https://phet.colorado.edu/sims/html/collision-lab/latest/collision-lab_en.html Version: 1.0.1 2020-08-14 18:19:15 UTC Features missing: touch Flags: pixelRatioScaling User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_6) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/13.1.2 Safari/605.1.15 Language: en Window: 1680x987 Pixel Ratio: 2/1 WebGL: WebGL 1.0 GLSL: WebGL GLSL ES 1.0 (1.20) Vendor: WebKit (WebKit WebGL) Vertex: attribs: 16 varying: 15 uniform: 1024 Texture: size: 16384 imageUnits: 16 (vertex: 16, combined: 16) Max viewport: 8192x8192 OES_texture_float: true Dependencies JSON: {}

[brandonLi8]

I'll investigate.

[brandonLi8]

Tested the exact same setup on master. No issues found.

sample (master)


Then tested the setup on https://phet.colorado.edu/sims/html/collision-lab/latest/collision-lab_en.html and the problem is there.

sample (deployed prototype)


A lot of things changed since the prototype was deployed in #126. Looks like this fixed itself!

[brandonLi8]

@oliver-phet, @arouinfar what should we do from here. I confirmed that this is no longer a bug. Do we let the user know? Re-deploy another prototype? Or close and move forwards for the first "production" (non-prototype) version?

[oliver-phet]

I'll email the user either way.

[arouinfar]

@brandonLi8 if master is in a good state, I think we should redeploy the prototype.

[arouinfar]

@brandonLi8 actually, we can wait to redeploy until testing in https://github.com/phetsims/QA/issues/537 wraps up.

[KatieWoe]

Using described set up, did not see this in 1.1.0 dev.13. Will reopen if something else seems to happen that is similar.