Croquet SDK 1.0 released

Get it while it's hot from the equally new Croquet Consortium web site.

Comments

Yes, interessting, but how can I connect to a World. Is there any Tutorials online? I saw the Video Tutorials on the Croquet Web Side but When I redo the steps I dont found something to connect.

July 05, 2008

Vanessa said…

"Croquet" is an SDK, a Software Development Kit, used to develop online-worlds. It is not an actual world ready to connect to. However, the "Cobalt" project aims to provide such a world, it is implemented in Croquet, and you find out about it on the Croquet web site.

July 06, 2008

Frontend-only Multi-Player. Unlimited Bandwidth. Or: What is Croquet.io, really?

A multi-player web app needs a backend, right? What if I told you, it doesn’t? Read on for how Croquet gets rid of servers. No, really . Instantaneous Shared Experiences is how we describe Croquet on our website. And while that excellently describes What Croquet does, as Croquet's Chief Architect, I wanted to share a bit about How we do that. So I wrote a Twitter thread . Here it is in blog form, slightly extended. Click the animation above if it does not play automatically Croquet lets you build completely client-side multi-user web apps. Read that again. Client-side. Multi-user. No I’m not kidding. I built it, I know it works. 😁 Croquet apps run completely client-side: can be hosted as a static web site no server-side code needed no networking code needed Croquet is literally virtualizing the server: Instead of running code on a server (or in a serverless function) we run it as a virtual machine (VM) on each client. Croquet carefully controls the inputs to these identi

Deconstructing Floats: frexp() and ldexp() in JavaScript

While working on my SqueakJS VM, it became necessary to deconstruct floating point numbers into their mantissa and exponent parts, and assembling them again. Peeking into the C sources of the regular VM, I saw they use the frexp () and ldexp () functions found in the standard C math library. Unfortunately, JavaScript does not provide these two functions. But surely there must have been someone who needed these before me, right? Sure enough, a Google search came up with a few implementations. However, an hour later I was convinced none of them actually are fully equivalent to the C functions. They were imprecise, that is, deconstructing a float using frexp() and reconstructing it with ldexp() did not result in the original value. But that is the basic use case: for all float values, if [ mantissa , exponent ] = frexp (value) then value = ldexp ( mantissa , exponent ) even if the value is subnormal . None of the implementations (even the complex ones) really worked. I

Connecting fields

Quick Recipe To connect field a in obj1 to field b in obj2 , use this: obj2 startScript: #b: when: {obj1. #aChanged} Now for the whole story ... Problem A colleague of mine wanted to make a drop-down list, where the options are not just set once, but provided and updated by the application. So, of course, when the options in the application changes, the items of the list widget have to be set to this new value. Nothing easier than that, just write a handler: onOptionsChanged <on: optionsChanged in: app> listWidget items: app options HOWEVER, he wanted to build this programmatically, not using a separate method. So, he easily came up with the following: listWidget startScript : #items: withArguments: {app options} when: {app. #optionsChanged} HOWEVER, this does not work as intended because the arguments to the script are evaluated only once, rather than every time the script is triggered. Well, this is what blocks are for, right? So this indeed works as intended: listW

Dr. Vanessa Freudenberg

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