
Hey @jeapostrophe, I have a quick question for you about mode-lambda. I’m looking at the code and trying to understand what happens when a sprite has index 0 (to know if I can reliably use that value as an “empty missing sprite”. I can see that when building the database, the sprite index starts at 1, which is already a good indication that 0 is a special value. Then when I try assigning 0 as a value, everything runs fine, and sprites with that value are invisible. But then it goes into OpenGL code and I’m lost. Can 0 be used as a default value for a sprite index? (I couldn’t find anything in the doc about this)

@mflatt Whenever I try to add racket/gui/event
to the docs, I keep getting a red underline under the module itself.


When using time
, how do you suppress printing of the output of the expression that you are timing? For example… #lang racket
(require math)
(time (flnormal-sample 0.0 1.0 100))

The defmodule
declaration needs to be within a part, which in that case is created by defclass/title
. You may have to split out title
and defclass
.

(I don’t remember why defmodule
doesn’t or can’t provide a good error.)

@travis.hinkelman you might want (time (void (flnormal-sample ...)))

winooski’s dead. RIP. Stephen Chang recovered the data & is working with the Northeastern sysadmins to set up a new server.

@jbclements @mflatt Sorry to bother you again but @pocmatos just asked me about https://pre-release.racket-lang.org/installers/racket-current-x86_64-linux.sh and https://pre-release.racket-lang.org/installers/racket-minimal-current-x86_64-linux.sh not working. (Some people use a RELEASE
version in their Travis CI build matrix, which points to one of those.) Is this just temporarily not available anywhere because of 7.3 prep? Or is it another winooski
thing and there’s another URL I should use for now?

(I tried to figure that myself but plain https://pre-release.racket-lang.org/ eventually gives a 522 response page from Cloudflare.)

@greg It’s a winooski thing. We were unable to complete the “initial build” that generally kicks off the week between branch day (7th) and the beginning of testing (15th). I’m hoping to make this happen in the next day, but I should be clear that there are definitely some question marks remaining about how exactly this is going to happen.

@jbclements Thanks. If it’s temporarily unavailable at any URL, that’s fine I’ll just let folks know. (If I misunderstood and it’s available at some other URL, then please just let me know what URL and I’ll update my end.)

@greg yes, we do not yet have a candidate build. It sounds like this might come together in the next day or two.

Understood. Thank you.

@greg Thanks for your time looking into this.