Scratch

If the original still works on your machine, try uploading it again.  You may have had a bad upload.

yea, I think that might work, I did that with one of my other projects and it worked so I think I'll try that. Thanks :-)

What's the URL of your new project? The old project seems to have been removed.

I downloaded the project and it works in Squeak, but it does not run in the java applet.
I suspect that the problem comes in decompressing the 229 images for the backgrounds.
The Java virtual machine may be running out of memory.

Hi, dsdude10.

Both the Java player and Scratch itself decompress all images when a project loads. This makes costume and background changes fast, but it can use up a lot of memory. Unfortunately, the Java plugin has a hard memory limit and if you run out of memory then the project won't run.

Compressiing the images improves upload/download speed, but it doesn't save any memory once the project is loaded and all images are expanded.

In the case of your project, the problem is the 229 backgrounds. This take more space than severals sprites with a total of 229 costumes because backgrounds have greater area than a typical sprite, which means more pixels and thus more memory used.

I see why you did your project the way you did; it is a very simple and easy way to create an animated movie. But it does use a lot of memory in the current implementation.

There are two things you can do to make this project work on the web site: you can make the overall movie shorter (fewer backgrounds) or you can build a new version using individual sprites for the stick figures, each of which has it's own sequence of costumes. The second approach requires a lot more work, since you'd need to coordinate between sprites and change their positions as well as changing their costumes. However, if you use the second approach you can create a much longer animation before you run out of memory.

  -- John

Last edited by johnm (2008-01-01 07:59:50)

Hey Everyone,
Look at this project, the animation has over 800 backrounds, and it WORKS here is the URL of it: http://scratch.mit.edu/projects/08jackt/72012

ok thanks I'll try making it a sprite

I can confirm that http://scratch.mit.edu/projects/dsdude10/76647 works when downloaded but not when run from the java applet.

Of course, the images in the sprites are still 480x360, so there was no reduction in memory use.  The images look like they were originally created at a much lower resolution.  If you still have the original images, using them instead of the 480x360 images might fix the memory problem.