franciscop / ola Goto Github PK

Hi,
When using Ola, it's not possible to change the values array length or object properties. It makes it a little hard to work with user inputs.
IMO, Ola should check if a value exists before updating it.

Reproduction

const values = Ola([10, 10]);
values.set([20, 20]); // Ok
values.set([30, 30, 30]); // Fail

The demo use setInterval to update another value, any prop of Ola instance can let me know the update is over?
Such as a Boolean __done__ prop:

const data = new Ola({x: 0});
data.set({x: 10});

let target;
let intervalId;
intervalId = setInterval(() => {
  target = data
  if (data.__done__) {
    clearInterval(intervalId)
  }
}, 10)

Really nice library.

Would it be possible to expose speed & also acceleration, even if read-only?

Since Ola actually uses maths, it currently only uses the existing time.
A user might like to predict or look ahead for future positions (& speeds).

For example if I had a boid/particle swarm and wanted to debug/visualise a future trajectory, I'd draw a line or points.

Another usecase might be multiplayer games, where servers & clients may need to predict future values.

Are there other usecases?

Does Ola need to change to support usecases like that in some way?

This is just a rough idea. I'm not sure there is a strong case for it, doesn't seem like a big deal to add it either, apart from API complexity and documentation.

Thanks for his great little library!
Is there a way to set the "speed" or damping factor of the interpolation?

are your line graphs custom canvas implementations or done with a library? they're nice :)