squeakland March 2018

squeakland@lists.squeakfoundation.org

7 participants
7 discussions

Start a nNew thread

(no subject)
by John Voiklis 22 Mar '18

22 Mar '18

Sup Squeakland http://bit.ly/2IJHasn John Voiklis

1 0

Question about Audio Buffer/Timing
by Jeremy Landry 18 Mar '18

18 Mar '18

Hi, I made a quick audio sequencer test in Etoys and found that there's a hidden 'timer' that limits the responsiveness of new sounds that go into the playback buffer (terminology isn't accurate, but hopefully it makes sense to people). I found the sound buffer setting, but was wondering if there's something else that limits how fast new sounds get added to the playback stream? I read somewhere (old-man-aphasia here) that some code was added to prevent overloading the buffer so surely there's a snippet of code I could add to a project to reverse this, if it's what is causing the delay? Thanks for any help finding the solution.

4 13

Ran out of space while loading?
by Jeremy Landry 11 Mar '18

11 Mar '18

Okay, so I probably should have taken care of this 'bug' before it became an issue. I know how to fix it, but was in lazy mode. Basically, I have a ton of copied images that are stored in memory so this project is 45MB in size (the fix involves saving the original reference only and then all of the objects that have the copies revert their images to dots on closing the project or page of the book they are in and then using that reference on load to restore their graphic). When loading it errors out with disk space low error, meaning I cannot open it up anymore, but it saved just fine. Is there a way to get this project open by expanding memory temporarily for the VM? I promise to fix the problem as soon as I get back in there! And don't worry, I do have an earlier copy that does open that I can work with, it's just that this one, I spent a bit of time in with the page in question making some assets and wouldn't mind not losing them...plus if I run into this problem in the future, I can solve it again. Thanks for any help. Here's the project in question if someone also just wants to hack it to load properly or needs to see it if they have some magical smalltalk tools that will auto-fix it. I'm not aware of such things, so if you do anything, please document it! :) ---step 05.015.pr <https://drive.google.com/file/d/1uEv4NKIW-AdxzoQJ3XhXchtQSCKZXrXf/view?usp=…>

2 1

Animating Sinewave Distortion on Any Image
by Jeremy Landry 08 Mar '18

08 Mar '18

Attached is a simple project which you can play with to create sinewave distortions on any image. A flap contains more info and more than just the pulled out values will make significant changes to the effect. While it's not ideal to use this inside of a project, it is perfectly suitable for creating some pre-rendered animation frames to use later that end up using infinitely less CPU and and memory (since nothing is calculated in realtime if it's just playing back an animation). However, even as unoptimized as it is, it still runs at 15-30 FPS as it is now on an intel Atom dual core ate 1.2Ghz (which effectively means it's running at 600mhz on a RISC processor and no GPU assistance from what I understand of the VM). After all these years, this effect is still cool to look at and fun to apply to various kinds of graphics to achieve interesting results when combined. For fun, you can change the MAKE SCANLINES script to make vertical slices and change the demo script to affect Y origin instead of X origin. Or if you're just lazy, rotate the entire holder playfield sideways and that works too. :p Enjoy...this will be included along with samples of where this is useful and how fast it runs after rendered (instead of running real time as a prototype) in Etoys Club 1 to be coming out...um...when I can finish it! :) RASTER FX 01.003.pr <https://drive.google.com/file/d/1RFxllpBQnaxwyTcPl4fc2n4j4_5zgL7f/view?usp=…>

1 1

Text Justification?
by Jeremy Landry 05 Mar '18

05 Mar '18

Word-wrap is on by default, but I haven't found a way to set justification to ragged left or justified. Are these in here or do they require loading up new classes/methods?

2 5

2D Retro Gaming Core
by Jeremy Landry 04 Mar '18

04 Mar '18

Part of the Etoys Club project is centered around bridging Etoys aesthetic to a more contemporary/mainstream audience. Here's a tiny project that is part of that work. It should be self explanatory what it is and does. https://drive.google.com/file/d/12u6oWFpQFZmJXKjtyHF8M8NmCOWn7XXR/view?usp=… Short description: 8 way overhead character movement tied to keyboard keys, mappable to whatever you want, included fully editable animation system as well. Playfield handles graphics updates and 'RunGame' handles timing for everything within the project for simplicity and syncing all the objects you might use.

1 0

Found Bug But Not Sure How to Proceed To Fix
by Jeremy Landry 04 Mar '18

04 Mar '18

Hi, while working on a project needing precise alignment of sketches/bitmaps and rectangles using playfield 'use gridding', it seems that there's a difference of detected origin. Here's a screenshot with magnifier showing the discrepency. https://imgur.com/a/tcaRu I'm quite certain this bug is the one that causes bad redrawing, especially when showing a cursor move when 'indicate cursor' is activated in a playfield. If I correct this bug inside of a project, will it load into an image where it has not been fixed and be fixed? I haven't actually fixed the bug yet, but didn't want to waste time on it if the fix will not travel with the project. Thanks in advance for any input.

5 23

2024

2023

2022

2021

2020

2019

2018

2017

2016

2015

2014

2013

2012

2011

2010

2009

2008

2007

2006

2005

2004

2003

squeakland March 2018