I need help making code where you can only move one sprite at a time. At the moment when I drag a sprite it will grab more than one and att the sprites stack on each other. (I have the basic .dragged move to current x and current y for each sprite)
What you are experiencing is ImageSprite Cannibalism. See an example and a solution in Scott's advice https://groups.google.com/g/app-inventor-developers-library/c/iQpSbdyYfkA
I would click that but my school made it to where I can't see it.
OK, try the copied advice:
Dec 7, 2015, 7:48:01 AM
Update 2015/12/07: The extra ImageSprite is not needed. Just assign an empty text block to CurrentISP instead of using PlaceholderISP in the TouchUp blocks
YouTube video: http://youtu.be/gpBvza1-BLs
When more than one ImageSprite can be dragged on a Canvas, unless precautions are taken beforehand they may get 'stuck' together.
This is referred to as ImageSprite cannibalism.
This App Inventor project demonstrates a simple method to prevent this from happening using an ice hockey rink example.
A global variable, an extra ImageSprite and a couple of if blocks enable only one of two ImageSprites to be dragged at a time:
Can you see this stuff now?ImageSpriteCannibalism.aia (31.2 KB)