Hi

Here is another video of a script I made today (I didn't really work long on it, so it's not really complete and useable) that i wanted to show you.
It is a rope physics script that can be downloaded below.

The video description tells more about it, everyone can use it if they want, feel free, but as I told you, it is not really working as it should be. For example the gravity seems to work perfectly as you look, but in the code it's a total mess

Now try this on calc and cry =(

Why make a physics engine if it performs poorly on the actual platform/hardware it should be running on

TI's logic.

Hm, it looks like that isn't true segmented rope physics though - each individual segment doesn't appear to affect the forces on the other segments (for example, when you yank the rope the ball doesn't fly upwards)

Hm, it looks like that isn't true segmented rope physics though - each individual segment doesn't appear to affect the forces on the other segments (for example, when you yank the rope the ball doesn't fly upwards)

that's what i meant with it seems to work at first sight, but it isn't really what it should be

Chipmunk's physics engine allow you to create such a thing, actually, it's just a matter of having joints.
Pretty much the same thing as : http://developer.coronalabs.com/content/chains (not the same eaxc syntax, but pivot/pin(?) joints on the bodies and boom there you go.

Now with the speed, it's still slow on the calc, but it's worth trying, just to test what rope physics give, with chipmunk.

that's exactly what I did, there's no difference I guess

(I just tried your .tns -> it's so cool on TINCS that you will be making everyone lose time :x lol congratz)

how do you mean lose time?

We should try to make it with chipmunk too and see how it compares to your code, speed-wise, on TINCS it probably will be the same, on the device I don't know.

It'll be way better, I'm sure of that, but I never tried chipmunk on calc (still 3.1)

It works a little bit nice when I reduced the timer to 0.04 instead of 0.01 and instead of drawing 500 segments with length 1, drawing 6 segments of length 25. But it still doesn't work as we all would like it to.