A neat little program I made, Quite useful

This is just a simple program where you enter some speed data and it will tell you how high you can jump with the given speeds, how far you jump with the given speeds, and the time it takes for you to jump and fall (in milliseconds).

The tile size is there just for easy visualization; IMO 2 tiles high is a lot more meaningful to me than 32 pixels (even though I can convert).

I figured I'd share it with you guys; source is included.

This post has been edited by RetroXYZ on Feb 21 2009, 05:15 PM

Attached File ( Number of downloads: 19 )
 Jump_Tester.zip

I can't open it

Looks neat! This'll help a bit with Engine Designing!

You need 7-Zip.

it glitches if you put in a number
pffff i mean letter

This post has been edited by Project_MK on Feb 21 2009, 04:22 PM

Here's an Idea: Max Fall Speed

That's because it's only designed to support numbers.

Since you're a programmer you should know that stuff like that should be handled by the program creator and he should not rely on the intelligence of the user, because it can happen anytime by accident, too.

Well of course, but last time I tried to do a number input program, I found it rather hard to limit it to numbers. I'm going to go check the C++ Reference to see if there's a good technique anywhere.

chr = getchar();
if (chr >= '0' && chr <= '9') { // you have a number! }

Darn it, how did I not think of that. I must be tired. Another technique is atoi()/atof() to take care of getting rid of the letters and defaulting to 0 for us.

An error would be more appropriate than defaulting to a value that holds no meaning.

I completely forgot about that - I'll add it right now. I'll also upload a zip instead.

EDIT: Updated.
EDIT2: If it glitches, then press the close button and start the program again. And plus, you can't exactly use char with decimals.

This post has been edited by RetroXYZ on Feb 21 2009, 05:19 PM

Does GameMaker support Regex?

I don't quite remember how Regex works but a valid number should be something like

^[0-9]+?.??([0-9])+??$

If anybody can correct my lousy Regex, that would be great.

This post has been edited by Baroque on Mar 12 2009, 01:11 PM

What the hell this is awesome.

why all that **** up
why not just [\d]*? (or something like that)?

Uh gee, so that you can use decimals?

[^0-9.]*?

but that would accept off-the wall numbers like 8...433.34..54, since you're pretty much forced into looking for one or zero decimal points (or commas i guess)

^.-(%d*%.?%d*).-$ is a simple but probably bug-prone pattern (for lua; bug prone since i threw it together in a few minutes by experimentation rather than actually looking one up), which could probably be easily converted and expanded upon in C/C++ since those have a more powerful regex engine

but hey it supports optional leading zeros so yeah

This post has been edited by Xgoff on Mar 16 2009, 01:57 PM