what does (a, b, c, d)=>{} mean?

[Rideg]

Can someone explain why some script look like

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(e, k, g, u, y)=>{insert script here}

[Nait]

This is function, for example

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scene.my.function:=(r,t,u)=>{r=t*u};
scene.my.function(var, 10,13)
// and after this var=130

Ps

Want to learn how to script? PM me and I'll teach you the basics and advanced parts of scripting.

And how are you going to teach them?

[Matten]

Ps

Want to learn how to script? PM me and I'll teach you the basics

And how are you going to teach them?

fixed

[Rideg]

Basics should be more exactly I'll change that in a second. When will I have use for this?

[Nait]

Hm, when you have to do many identical calculations...
For ex. instead of writing this

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A=((A/180*Math.Pi)+120)/(B^2);
B=((B/180*Math.Pi)+120)/(B^2);
C=((C/180*Math.Pi)+120)/(C^2);
...

You can write this

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func:=(t)=>{t=((t/180*Math.Pi)+120)/(t^2)};
func(A);
func(B);
func(C);
...

[tatt61880]

You can write this

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func:=(t)=>{t=((t/180*Math.Pi)+120)/(t^2)};
func(A);
func(B);
func(C);
...

1) Please use "Scene.my.".
2) The substitution(t = ...) should be outside of the finction (or use "eval").

It should be like below.

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Scene.my.func:=(t)=>{((t/180*math.pi)+120)/(t^2)};
Scene.my.A = 1;
Scene.my.A = Scene.my.func(Scene.my.A);


[Rideg]

Maybe I asked for more than I got. I don't understand. Can you use it in a example?

[Nait]

tatt61880, Okay, I'll take it into consideration
(and scene.my can be not used if you are not going so save scene))))
_________


Hm...
For example, you have many color sensors

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scene.my.detect:=(c, d)=>{c==[1.0,1.0,1.0,1.0]?{}:{d.other.density=0}}

And now in every sensor you can write

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oncollide=(e)=>{scene.my.detect(e.other.color, e)}

You can check that, it is working... (in algodoo of course)

PS "in algodoo of course" - deleting object via "density=0"
PSS

Color Senosor Function Example

Nait

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[KarateBrot]

Or just a simple mathematical example you can test in your console could also be this:

You got a function f(x) = x² and you want to include it in Algodoo. You can open your console and type in

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scene.my.f := (x) => { x^2 }


or whatever. Press enter and now you can type in scene.my.f(2) for example and your displayed solution would be 4. Or scene.my.f(5) and your solution in the console will be 25. The function always will calculate the square of your input.
You can make pretty complex functions which get calculated dependent from a bunch of variables (or just one in this example).

[RA2lover]

also, you can declare functions inside geometries automatically.

[Rideg]

also, you can declare functions inside geometries automatically.

Sounds interesting. Could you show me an example?

[RA2lover]

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oncollide=
(e)=>{
e.this.foo=(bar)=>{baz}
}