Algodoo

Question: You said "change collision group of the polygon it's attached to to C", but the laser is attached to a BOX, not a polygon. Is that Okay? Or did you really want the laser attached to a polygon?

To a polygon would be good, but even better if it works for both if that's possible.

Just a little comment on the script if you want to know/do more:

"my_box := Scene.entityByGeomID((readable(entity)).geom); "

will get the geometry the laser is attached to. With this you can edit every property of the attached geometry, for example:

"my_box.friction = 0.0;"

will make the box frictionless.

This is the main part:

_Hit ? {
my_box.CollideSet = 4
} : {
my_box.CollideSet = 0
}

It checks if the laser is hitting any target and everything that you put inside the first braces will be executed if the laser is hitting, and everything inside the last braces will executed otherwise.

CollideSet numbers works as follows: A is 1, B is 2, C is 4, and so on... Any combination of them is just the unique sum of these powers of two, [A,B] is 3, [B,C] is 6, and so on

Carl you are fantastic <3333333333333333333333333

There's another way to skin the cat! See my response scene.....

You forgot to turn the collideSet to 0 whenever it isn't hitting anything...

OOPS! You're right! I'll see if I can fix it.

Thanks!

That was my problem: there is no "onLaserNotHit" function that is overridden by the "onLaserHit" one , but if you put the default case (_Hit = false) inside the update() it will work.

Okay, I fixed it with a counter. Thanks again for catching that!

(comment deleted).

maybe:

1 press F10
2 writte "scene.my.(anything)", like scene.my.layer or scene.my.anything, then add + "=(value)" or "="(string)" "
3 go in the laser, click on "script menu"
4 find for onLaserHit and write "(e)=>{scene.my.(the thig you have created) = 1}
5 go on the attatched object and on the collide set writte "{scene.my.(yah you know)}

If you want the value of them returns to initial, use the update of the laser

DON'T ADD ANY " MENTIONED ON THIS TEXT, ELSE IF VALUE IS A STRING

If you want I can make a map exemplifying that