Scratch

I think this will help... copy this script:



I hope that's what you were looking for. I'm glad you named each sprite by it's number.

the counter essentially is the "crumb number" or the name of the crumb the ant is going to. I didn't test it, so I don' t know if it works.

Also, I noticed that you have two different broadcasts, annoucetwo and goto. I think they all need to be goto. 

Any questions?

I substituted your 5 lines for my 51 (!) lines....but here's what happened.  The ant went to the first crumb and then waited there until it finally said, "If you don't mind...." which is the end of the scene.  (It acted like my test project: it went to the first sprite but then wouldn't go to the second.  My variable had been named "Sprite number" but adding 1 to it each time didn't produce the serial movement I need.)  I just can't figure why it won't go from the first to the second crumb!!

BTW, the "approach two" broadcast calls a title screen that introduces the ant's second approach to crumb-finding, and that title screen calls "go two."

What do we do now??  :-/

Here we go, same concept, except using a list of sprite names:



Again, I haven't tried, as you can see, all this project has is the list and variables.

Here is the zoomed in script:


I hope that helps!! 

Last edited by greenflash (2009-10-05 22:50:40)

Not necessarily - You could use this script:

[When I receive [Go two]]
[set [iter] to [0]
[repeat (12)]
[][change [iter] by (1)]
[][go to (join (iter)())]
[end repeat]
[say [All done]]

Here's a stripped-down version of the "Cleaning" project: http://scratch.mit.edu/projects/Larry828/706807

In Scratch there's a command "Play note ( )" and one can make a list consisting only of numbers, like 65, 66, 65, and Scratch will play a tune. Because Scratch knows those numbers represent notes.  So shouldn't the "go to _____" command work the same way?

Based on suggestions given here, in the test project linked above, the crumbs are named c1 - c12 in the list "crumbs".  Using variable "index" to grab the item number in the list it goes like this:

Repeat [length of (crumbs)]
     wait 1 sec
     POINT TOWARDS [item (index) of (crumbs)]
     wait 1 sec
     GO TO [item (index) of (crumbs)

And in the test project you can see each item in the list 'hit' twice (pointed to and gone to?)...but the ant never moves.

A newer test project http://scratch.mit.edu/projects/Larry828/706891  uses the script above, and gives an option to run a literal sequence of "Go to c1" etc commands...and those work fine online.  I can't figure out the difference.

Thanks to all of you who are contributing ideas and scripts!!!  I think my test project reflects those suggestions.  If not, please let me know!!

ps  these things generally work at home on my computer (my script above works fine) but they fail online.  I'd really like a method that will work online for future projects. 
:-)

Last edited by Larry828 (2009-10-06 12:37:31)