Hi!
so currently i'm working on a warrior cats game and one of the codes i've programmed the sprite you control with is this:

when [up arrow v] key pressed

change y by (16)

wait (0.2) secs

change y by (-16)

See any problems so far? because as far as i can tell there isn't any (i'm not 100% sure though) but sometimes, randomly, whilst i'm running through the code that script will play. when i'm not even touching the keyboard or the code the charectar will just jump a bit. there isn't even a pattern!
can anyone tell me wh this is happening or how to fix it?

help

It runs when you're scrolling up.

Simply_A_Bookworm wrote:

Hi!
so currently i'm working on a warrior cats game and one of the codes i've programmed the sprite you control with is this:

when [up arrow v] key pressed

change y by (16)

wait (0.2) secs

change y by (-16)

See any problems so far? because as far as i can tell there isn't any (i'm not 100% sure though) but sometimes, randomly, whilst i'm running through the code that script will play. when i'm not even touching the keyboard or the code the charectar will just jump a bit. there isn't even a pattern!
can anyone tell me wh this is happening or how to fix it?

help

If you scroll up, scratch acts like you pressed the up arrow key. Could be because of that.

Ohhh thanks didn’t know that!

Yes, it runs when you scroll for some reason.

By the way, for more efficient jumping, do this:

when green flag clicked
forever
if <key [up arrow] pressed?> then
change y by (16)
wait (0.2) secs
change y by (-16)
end
end

There's an even better way to do this to make it even more smoother, which is using a variable. I like naming it velocity.

when green flag clicked
set [velocity] to [0]
forever
if <key [up arrow] pressed?> then
set [velocity] to [16]
end
if <<not <touching [Terrain/ground/whatever] ?>>
change [velocity] by (-1)
end
change y by (velocity)

Don't tell me you never asked, because you never asked. Right? But I can't resist the urge to help people who code like this

when [up arrow] key pressed
change y by (16)
wait (0.2) secs
change y by (-16)

No offense.

Why am I so annoying?