Sprites keep falling through floating platform (created as sprite)

dougconran

I'm new to Scratch but am struggling to stop my player sprite falling through a floating platform. At the moment I do not know how to search this forum for any answers (some guidance would be much appreciated) but googling the issue I've found a number of posts describing the problem but no workable solutions. It is nothing to do with the player inadvertently touching the platform because I have forced it well above that. It only seems to happen when the player is stationary on/over the platform and, generally, there is a finite pause of at least a few tenths of a second. Also, this only occurs on floating platforms not those that stretch down to the base of the ground sprite.

Any help/suggestions/workarounds would be much appreciated (as would help on how to search this forum)

meepeygamer567

A link would help.

g4tor2010

I'm not going to be too hard on you since it's the first time, you can post script-related question here. I think you can use:

The simple explanation is that the character moves -5 steps whenever it encounters the ground. But the movement is so quick and small that you can't see it. Here's a pretty decent project that has this.

OhOkSir12345

g4tor2010 wrote:
I'm not going to be too hard on you since it's the first time, you can post script-related question here. I think you can use:

The simple explanation is that the character moves -5 steps whenever it encounters the ground. But the movement is so quick and small that you can't see it. Here's a pretty decent project that has this.

...::#808080
if <touching color (insert color of ground here)?> then
move (-5) steps
end

g4tor2010

OhOkSir12345 wrote:
g4tor2010 wrote:
I'm not going to be too hard on you since it's the first time, you can post script-related question here. I think you can use:

The simple explanation is that the character moves -5 steps whenever it encounters the ground. But the movement is so quick and small that you can't see it. Here's a pretty decent project that has this.
...::#808080
if <touching color (insert color of ground here)?> then
move (-5) steps
end

Isn't that exactly what I just said?

OhOkSir12345

g4tor2010 wrote:
OhOkSir12345 wrote:
g4tor2010 wrote:
I'm not going to be too hard on you since it's the first time, you can post script-related question here. I think you can use:

The simple explanation is that the character moves -5 steps whenever it encounters the ground. But the movement is so quick and small that you can't see it. Here's a pretty decent project that has this.
...::#808080
if <touching color (insert color of ground here)?> then
move (-5) steps
end
Isn't that exactly what I just said?

yes but it is smaller and 2.0

g4tor2010

Isn't larger easier to see?

dougconran

Thanks for a very quick answer but I've already tried that without success. I've forced it up to 10 pixels above the surface but it still drops down, not immediately but after a few tenths of a second. If I continually jump the player then it stays on the floating surface but as soon as I stop, after a short pause it drops through to the base surface. To me that implies that it is not the ‘not touching the surface’ that is the problem but some other issue.

han614698

dougconran wrote:
Thanks for a very quick answer but I've already tried that without success. I've forced it up to 10 pixels above the surface but it still drops down, not immediately but after a few tenths of a second. If I continually jump the player then it stays on the floating surface but as soon as I stop, after a short pause it drops through to the base surface. To me that implies that it is not the ‘not touching the surface’ that is the problem but some other issue.

I don’t think that their code will work, because, if I’m assuming correctly, you want the sprite to fall and then sit on a platform?
The code given by g4ator2010 will just move it 5 pixels

——>

This way, when you need to move

î

This way.

Replace the move (5) steps block with a

change y by (5)

Last edited by han614698 (Oct. 26, 2021 21:56:42)

dougconran

Thank you, all, for your suggestions. Given that the issue had cropped up several times a few years ago I was hoping that there was an easy fix but, apoarently not. On reflection, given the small delay between landing on the surface and falling through it I'm beginning to think that it may be an issue with the last part of code in the forever loop. I need to do some more and different testing.

cheddargirl

Don't mind me, I'm just dropping a message to let you know I moved your topic over to the correct section so more eyes can see the topic (though I would have to agree with meepeygamer567 that a link would help - that way we all can see the code and give further suggestions on how to improve the script).

dougconran

cheddargirl wrote:
Don't mind me, I'm just dropping a message to let you know I moved your topic over to the correct section so more eyes can see the topic (though I would have to agree with meepeygamer567 that a link would help - that way we all can see the code and give further suggestions on how to improve the script).

Unfortunately I am running Scratch as a local app, not on the internet, and cannot find any way of being able to upload the project - is there a way to do that?

dougconran

Ah, okay, I've just discovered how to do that (create an internet project and upload my file to that). The link is :-

https://scratch.mit.edu/projects/590598883/editor

meepeygamer567

Did you remember to share?

SansStudios

Welcome to the forums!

Your issue happens because you never reset velocity after touching the ground. You can simply add this at the bottom of your test falling block:

if <touching [Level1 v] ?> then
...
set [velocity v] to [0] // add this block!
end

Last edited by SansStudios (Oct. 28, 2021 00:18:34)

CrownIR1

SansStudios wrote:
Welcome to the forums!

Your issue happens because you never reset velocity after touching the ground. You can simply add this at the bottom of your test falling block:
if <touching [Level1 v] ?> then
...
set [velocity v] to [0] // add this block!
end

ah, but you see, you are forgetting the side of the platform.

SansStudios

CrownIR1 wrote:
ah, but you see, you are forgetting the side of the platform.

This user's game has code that causes a game over screen if you touch the side of the platform, so it's irrelevant in this situation. Good catch though!

Last edited by SansStudios (Oct. 28, 2021 00:28:36)

dougconran

SansStudios wrote:
Welcome to the forums!

Your issue happens because you never reset velocity after touching the ground. You can simply add this at the bottom of your test falling block:
if <touching [Level1 v] ?> then
...
set [velocity v] to [0] // add this block!
end

Brilliant!

Many thanks for the suggestion

SansStudios

Glad I could help!

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