Re: is it possible for a sprite to detect is its touching a color?

[Enis]

Maybe... You'd have to check every pixel for it's color, and no matter how hard you try, that'll be very consumptive in AI...

You'd have to analyze the color of each pixel based upon it's location... Use the Canvas.GetBackgroundPixelColor, and pass it the x,y of each tick, but expect the deal to be VERY slow...

[Abraham Getzler]

Try here ...

https://groups.google.com/forum/#!searchin/app-inventor-developers-library/sprite/app-inventor-developers-library/6EhfHIJ7u68/5EEXnZe7tCEJ

The first link (Scott Ferguson) in this thread discusses this.

ABG
 

[Enis]

Please not that Scott's example is an AI Classic project... you'll have to convert it to AI2...

[Enis]

You appear to have different timers for different stuff... That's NOT the way you should do this.  You need to check that color every time you move the sprite, which I'm sure, is in another timer.... Do this in there... When the sprite moves, check the color.

Also, why open another screen when the game is over?  Just put up a Notifier... you can also change the image in the background of the same screen...

[Taifun]

what is the timer interval of your clock?

what happens, if you set the ball manually to a x/y coordinate with the light blue background?

use Do it to debug your blocks

Taifun

[SteveJG]

Perhaps     http://rosettacode.org/wiki/Color_of_a_screen_pixel      and   https://lh4.googleusercontent.com/-Gw0xm7RIEck/Uute2nQSGsI/AAAAAAAAJ90/rq3UuWYE9Yw/s1600/Capture.PNG  

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might help

Regards,

Steve

[Enis]

Post a screenshot of how and where you're moving the ball...