How Can I Increase Speed Per Collision On A Certain Block? (paddle for example)

[Gremlin Won]

Hi all, New to MIT App inventor really but know the basics of Scratch.

When fiddling about with the "Pong" app i got bored quickly as I would never die as it was too easy. So I decided to see if I could make it harder per bounce on the paddle.

I successfully managed to make it harder using the "random integer" but it was very unreliable as sometimes your first bounce would take it to maximum speed.

My Question: How can I increase speed per collision on a certain block? (for MIT App Inventor 2)

What I want to do is increase the speed by "+1" each time it touches the paddle. I have not found a way to do this yet, has anyone got an answer to this? I assume it's just my new experience and not knowing how to after some searches had no luck finding an answer.

Thanks in advance to any help :)

Thomas

[Italo]

Everytime the ball touches the paddle set the ball speed to ball speed + 1

[Gremlin Won]

I will give it a try but I have done something similar to what you said and it only increased the ball speed the first time it touched and then never increased the speed again.

[Italo]

If you do this, the speed has to increase.

[Hal Abelson]

Is it possible that you are increasing the speed, but you have a large interval?    That is, each sprite has two quantities:

- the speed is the number of pixels the sprite moves per clock tick
- the interval is the number of milliseconds between clock ticks

If the speed is large, but the interval is also large, then the sprite will move a large distance between clock ticks, but the
change won't happen faster than the freqency of the clock ticks.

[Gremlin Won]

Thanks, I can already see that's where I'm going wrong. that will work thanks for your help :)

Italo has fixed the problem.