Focus on aspect ratio more than resolution.

https://www.scirra.com/tutorials/73/sup ... reen-sizes

If you search "android" in the tutorials you will find lots of help to start you.

oh..

The only issue I have is with C2 wanting me to export to a folder I USED to use ages ago, instead of the same folder I've used many times since... If I don't notice, I can waste a good 10 minutes.

I still don't get it. Were you exporting to a different folder each time?

Yea, it didn't look like the grid, I just thought I'd ask. I get similar stuff but quite rarely, and it seems to me like it's C2 running out of resources.

There's no issue with visibility. There's must be a problem with your code but unless you upload it we can't see what it is.

When you build in the XDK, just choose to Upload the files and you will get the new stuff.

This uses MoveTo. Also, instead of flashing everything I just made it highlight the 'last' position. Your requirements are still a bit ambiguous though. I've understood it as "the ball can move to any position except the one it has just moved from, and not diagonally. It will do this indefinitely"

As lahssoo said. But you should read the official tutorial on framerate independence.

You don't need the location to destroy it

If you're in a System:For loop (say, from 0 to 10) then during the loop the expression 'loopindex' will give the value 0, 1, 2...10 or whatever you're up to in the loop at the time. If you have multiple (named) loops you can do loopindex("X") or similar, to determine which one's loopindex you'd like.

Have you tried with Show Grid off?

edit: At first I thought this was going to be something I've experienced lately, where C2 seems to glitch out with vertical lines all over the layout, and many error message boxes that appear and disappear. I either have to kill the app or hold down Esc until the (unreadable) errors go away and I can shut down. This is on latest stable....