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How to line trace around player?

I want to do multiple line traces around a point in world. It would start pointing up or whatever and go around all the way with customizable offset between the traces. Also it should have customizable amount of traces. How to do this and what kind of math i must use to achieve this? Currently i've only came up making array of x=1 y=0, x=1 y=1... etc. this is obviously wrong and doesn't work as i want it to, see pictures related.

Product Version: UE 4.20
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asked Sep 13 '18 at 07:54 PM in Blueprint Scripting

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Can you explain a bit what are you trying to do? I think there is better way to this as making many linetraces dosn't seem to be best idea.

You can create sphere collision and get everything that it colide with.

Let me know if you need better explanation.

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answered Sep 13 '18 at 08:01 PM

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avatar image jabetsgi Sep 13 '18 at 08:17 PM

No i don't think sphere trace is good here. I want to simulate field of vision around the player. Like this https://www.redblobgames.com/articles/visibility/#ray-casting

avatar image Przemek2222 Sep 13 '18 at 08:24 PM

I will create something like this later or tomorrow.

avatar image Przemek2222 Sep 13 '18 at 08:55 PM

I've got blueprint. You can do whatever you like, I have used debug lines to show that it works and I have did this in 3d space you can change this.

This is just a concept on how to do it.

Link to blueprint. Just coppy and paste in your project.


avatar image jabetsgi Sep 13 '18 at 09:20 PM

this had the information to solve the problem, thank you.

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Btw Unreal has a solution built into the engine for this. Its called EQS Querry System its pretty handy

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answered Sep 14 '18 at 04:38 AM

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avatar image jabetsgi Sep 14 '18 at 12:50 PM

You're right, it is handy. I were able to achieve the same thing with this.

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