is LOS add/clear objects global?

I know I've had some really wonky issues with the Turret behavior when I added an object to Target, it would somehow work globally. I'm finding the same is true for Line of Sight. When I clear objects for a particular object, it clears them for different objects from the same family.

Is this supposed to happen? am I using LOS clear objects wrong?

The main issue I run into is... I have this one turret object and depending on which level you are in, sometimes that turret is friendly to the player, other times that same object is the enemy to the player. So I clear LOS objects at the start of each Layout and determine if those turrets are enemies or not and add them accordingly.

Some strange things I'm seeing is somehow the LOS of the player is affecting the LOS of other objects within the family. But also LOS is sometimes just stops working. I feel like I am using it wrong.

Any help?

Yes you are correct the LOS is Global

Basically, even if you filter instances from the same object and then add to that picked one an obstacle it will be global for all the other instances of the same object.

You can test it here:

https://www.dropbox.com/s/ips3dsytougtljf/L.O.S%20Obstacles.c3p?dl=0

If you notice at the start of the layout I pick only the first Green object at the Left and I add to it the obstacle but the obstacle will be added to all three instances as you can see the last two green instances will not turn yellow at the run time.

This is by design.

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However, One thing you could do but this may not work for all projects, it depends on what you have interacting with solids as it can interfere.

Instead of use custome, you need to use solid if you can and then use the collisions filters to add obstacles to specific instances this way you will be able to do per-instance obstacles, it's a bit more work to do but at least it's an alternative and is not that much work.

https://www.dropbox.com/s/ron6eojm8h6a0pw/L.O.S%20Obstacles2.c3p?dl=0

Will be nice if we could use collision filters swell when using the LOS by custom obstacles or any other behaviours that you need to filter obstacles, maybe could be a feature request.

wow thanks tarek2 this is very helpful! do you know if it also applies to families? it seems to.

I don't understand why out of the 3 Team2 sprites, the 2 to the right start as yellow.

oh, also the issue I am having is with casting rays, not the bool HasLineOfSight. I'll try to replicate it.

do you know if it also applies to families?

Yes, the family you can count as one single object so the same rules apply

I don't understand why out of the 3 Team2 sprites, the 2 to the right start as yellow.

I was trying to make you visualize that add obstacle are global

Example:

-In the first example I used the add obstacle the same as you did but I just added to the green instance that has the "boolean Active" true which is the First at the left

But as you can see that doesn't work because the last two don't turn yellow at the Run time meaning that they will have LOS

-In the second example we try the same thing but this time is working as I use the solid obstacle instead and collisions filters that's why you can archive per instance obstacle filter So:

1-If its yellow it means they have LOS to the Team1 therefore the are no obstacles on the way

2-If its not yellow it means they have No LOS to the Team1 therefore the is an obstacles on the way

Meaning that each has their own obstacles independently on the second example

oh, also the issue I am having is with casting rays, not the bool HasLineOfSight. I'll try to replicate it.

It should work the same, as if you have an obstacle it will intersect

I will recommend you test it out first in a small demo and see if it works because if you test it on your main project they may be a lot of other events of things interfering.

tarek2 > > do you know if it also applies to families?

Yes, the family you can count as one single object so the same rules apply

so that does that mean I can't have the same Family objects using a Family LOS behav and target each other?

tarek2 > > do you know if it also applies to families?

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> Yes, the family you can count as one single object so the same rules apply

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>

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so that does that mean I can't have the same Family objects using a Family LOS behav and target each other?

If you mean for example you have Family1

And then you have events:

Family1 has LOS to Family1

That will cause you to target yourself so the LOS will be always true so nope that's not what you wanna.

The same as Object1 has Los to object1

To be independents and to not target yourself you need to use a family and a normal object

Object1 has LOS to Family1

Or a family that don't have the same objects on both sides Example:

Family1 has Los to Family2

tarek2 okay, yeah I think I can see what is going on.

it's pretty complicated the way I have things set up.

but you see here I have a laser pointer for the turret, and a laser pointer for the ship, they keep going through each other, only one works at a time. And they share the LOS behav in the same family. (sorry I know its hard to see in the GIF)