Newbie help with Oolite Js API

[m4r35n357]

A fairly simple example to review is the Cargo Shepherd I just released.

That scans for cargopods (by role and scanclass) and if it finds them it acts on them. And it's a very simple and small script. Have a look at that and see if it helps you.

OK will download & have a look, thanks.

[Thargoid]

I'm not sure you can pass a parameter directly on a timer call to a function. You may need to store it away in a script variable (this.something = whatever) and then refer to that in your called function.

I have a memory of having this issue myself in the past. My IronHide code you quoted is the callback function from a mission screen call, which is a slightly different case.

[m4r35n357]

I'm not sure you can pass a parameter directly on a timer call to a function. You may need to store it away in a script variable (this.something = whatever) and then refer to that in your called function.

I have a memory of having this issue myself in the past. My IronHide code you quoted is the callback function from a mission screen call, which is a slightly different case.

That sounds right to me, I'm looking at Cargo Shepherd right now, I hope that will clue me in on something I can use. Thanks, Ian.

[m4r35n357]

Fixed, download it again.

Edited requires.plist, now working, thanks.

[m4r35n357]

I'm not sure you can pass a parameter directly on a timer call to a function. You may need to store it away in a script variable (this.something = whatever) and then refer to that in your called function.

Yes, that is exactly how I am now using the timer, and it works! I need to check up on the precise semantics and timing(!) of the Timer, but basically I'm where I needed to be to proceed, so thanks to everyone who helped, Ian.

[JensAyton]

I'm not sure you can pass a parameter directly on a timer call to a function.

You can’t, but you don’t need to, because JavaScript functions “close over” variables in their declared scope. For example:

Code: Select all

var x = 5;
this.t = new Timer(this, function() { log(x); }, 0); // Will log 5

Or, equivalently:

Code: Select all

function timerFunction(n)
{
    log(n);
}

var x = 5;
this.t = new Timer(this, function() { timerFunction(x); }, 0);

[m4r35n357]

I think the latter is what I want to do, eventually (I already have something that works so I will take a little time over it). Thanks for the tip.

[m4r35n357]

OK, it just worked first time, didn't even need variables, just passed literals to the "inner" function from the outer. Very nice Javascript lesson!

[TGHC]

round of applause to everyone, more jelly babies.

[Okti]

round of applause to everyone, more jelly babies.