#blueprint

402296 messages · Page 609 of 403

zealous moth
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ah nvm, cannot PM

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in the documentation

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check feature "delete and link"

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it does just that

solar sonnet
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really cool thanks so much!!

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I'm gonna take a look at this tool, might be worth the $15 👍

zealous moth
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it's on sale i think for 7

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oh no my bad

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it's 15

rough jay
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how do u check if a key is being hold down?

dawn gazelle
glacial spruce
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@dawn gazelle

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do you know how to play an animation on ai?

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but only when they see you in distance

knotty quail
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I need to get the primitive object reference from an attached actor's actor object reference

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How can I do that

deep imp
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I'm not sure what you mean when you say primitive object reference. Do you mean the root component? Anyways try this

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true valve
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Hello - So I have two duplicated actors in my level. If I interact with them they show me widgets that I can submit content. The issue is that if I update one of the widgets all of them get updated.

maiden wadi
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@true valve Sounds like you're updating one widget that all of them share, or your widgets are getting data from one instance of your actor instead of individual ones.

true valve
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I duplicated the actors then entered data individually. So my issue could be that I;ve one widget in my main HUD that I toggle its visibility.

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I guess I've to create the widget when I interact

maiden wadi
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Alternatively. You can pass your reference to the one widget and make that one widget update it's visuals and subwidgets based on the passed in actor. I do the same thing with an inventory transfer window. I call an initialize function on it that passes in the container my player has interacted with, this checks if it's valid, if it is, it populates or overwrites the current stuff to update the widget to reflect what container it's representing, very little new widget creation. Once it's done, it adds itself to viewport.

true valve
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So in my controller I've an interface function that calls the event in the placed actor which passes the self ref to the widget to populate data or populate the in its BP then updates the widget every iteration.

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THat's what I tried.

tall pine
barren flower
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@tall pine its pretty self explanatory. I'm on mobile one second to type the response, ill walk you through it

round basin
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Hello on my world blueprint I want to call an event but it does not work, can you help me ?

barren flower
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The event hit fires off when the blueprint you are examining comes into contact (hits) something else. I'm guessing this blueprint is the bullet or something.

That event fires the 'spawn decal' node on the right.

That node pulls in data from two places.

Going down the decals input list, it obtains the reference to what the other object it should be attaching to.

It gets the location of the hit, on the object it needs to attach to, as the location to spawn the decal.

It finally does the same thing with the objects rotation, to correctly rotate the decal to its new hosts rotation.

tall field
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Is there any way to get a hold of the component class FoliageType.InstancedStaticMesh ? I've inherited from that class and filled it with my own variables but there seems to be no way to get ahold of it. From my knowledge with the Procedural Foliage Spawner is that you set the component class of another type of component...

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For information, neither GetAllActorsOfClass nor GetComponentsByClass works with this

barren flower
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@round basin you need to reference your target directly. You are failing to obtain a valid reference. Use an 'is valid' node behind your get actor class node and print on fail.

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@round basin are you trying to spawn this class? Because thats all very wrong if so.

round basin
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I just try to call an event

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or a function

barren flower
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Okay, so are these two different blueprints?

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What is 'jump?'

round basin
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I want to spawn different obstacles, "jump" is an obstacle. It's the blueprint with the event and "print string". The other blueprint with begin play is the world blueprint.

barren flower
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Okay, stop right there

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Your blueprint doesn't exist in the world if it doesn't yet exist in the world.

You are asking nothing to spawn itself

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You need to understand how references work

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Okay so so what you actually need to do is use a spawn actor node

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I'm on mobile I don't remember the exact node hang on

round basin
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one of them ?

barren flower
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Yeah it's the top one, spawnactor

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All of this happens in your world blueprint, not the jump blueprint

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Okay, so you need to select the jump class, and you need to tell it WHERE to spawn, with the transform.

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Remember, a blueprint is an object to be placed in the world. It does not exist in the world, and so cannot run code until it does

round basin
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I wanted to call the blueprint "jump" to determine if the current theme was for example "winter" or "summer" and then make changes to the actor and then make it spawn. @barren flower

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But I guess I can spawn it off the screen and then set the location right ?

barren flower
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Any thinking that needs to be done should be done by the summoning blueprint, not the summoned.

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But hypothetically, yeah I guess you could

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Just spawn it wherever, and have it set itself up in the 'on construct' tab of its blueprints.

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Use a branch with an 'issummer' boolean

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In your level blueprint

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And have the level blueprint decide what it should spawn from there.

Have the 'jump' itself only concerned with whatever it's supposed to be doing.

round basin
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Okay yes, thank you ! 👌

barren flower
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@round basin so to be clear. It's spawning should be handled by a branch in the level blueprint, NOT in the jumps blueprint

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Okay guys HELP MEEEEEE I have my own question. Haha.

How on earth do I manage big data in this engine?

Let's say I have a village simulator, thousands and thousands of little sim people.

Okay, so I only want to render the people out on the streets, not in their houses where I can despawn them.

How do I put them all in a big database or spreadsheet or something so I can keep track of them, change and update them, or even delete or create them on the fly?

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What's even the right approach for this?

turbid tiger
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how to make the type itself defined as for example For Each Loop

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barren flower
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@trim matrix i don't know c++ :(

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You can naitivise blueprint though, and it gives only 5% lower performance than c++ code in testing, apparently

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Well the idea is to just iterate through the list fairly slowly. That's why I'm struggling with how exactly to do this

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Truuee

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So c++ isn't a magic bullet either, let's say I learn it and expert mode, okay so what would the actual approach be?

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They don't actually have to be simulated real time, just extrapolated. But their data has to exist so if they leave a building I can spawn them correctly with all their attributes

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That sounds perfect, never heard of a flat cache friendly array

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Want a job? Haha

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Yeah that sounds like a good approach though for sure

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My idea is basically, yes, it's a giant for loop iterating over the entire population one at a time, make some small decision, and loop over endlessly, constantly updating as you go.

The 'real' ones when they leave on the street get updated in real time, everyone else just gets updates when we get back to you

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Can you do a flat cache in BP?

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The problem with an array of struts as I understand it, is that it's not searchable

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So let's say I have a bank robber enter the bank.

How does the teller know about that whe. It's her time to be iterated over, to give up the money? How do I reference the robber to give it to him?

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See I could give them a 'current building' Id, but again, array of struct isn't searchable to find the other people with that same building id

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Yeah that's my struggle haha

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And that's all fine, but what if I destroy the bank. Then how do I address the occupants to vacate or delete them. They'll get iterated over in a building that doesn't exisy

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Can I private message you? I feel like we are doing basically game design in the blueprint help section, people might want to ask for help haha

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Yeah I'm just not sure how to actually do data oriented design

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But thanks heaps for you help, man!

somber quail
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ight its been fun but im switching to unity

maiden wadi
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@hushed gazelle What are you trying to do? Replicate the look direction for animations or something?

thorny merlin
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is there a way to get "all rows of a data table that have value X in column Y" ?

maiden wadi
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@hushed gazelle Most times, people rely on BaseAimRotation for animation stuff.

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Like.. The Animblueprint uses an aim offset based on BaseAimRotation, the weapon is attached to the mesh that does the aim offset and it gets moved with that mesh, which moves the muzzle on the weapon.

thorny merlin
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i can do the filtering myself of course but maybe theres a better blueprint already existing

dark drum
dark drum
maiden wadi
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Be careful with that kind of setup. If you're relying on the server's version of the rotation for the weapon firing, it's going to be a little bit off for the player that is firing and it's going to feel bad

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To answer your first question, the custom ServerRPC event is the only way for the client to tell the server to set a variable, yes. Clients cannot contact each other and any RPC besides a server rpc will just get played locally and affect no other machine. And they can only server RPC from actors that the server recognizes that they own via the Owner variable in actors. This has to be set to the player controller of that client, or something that is owned by that player controller.

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As far as shooting and whatnot, that is a very indepth topic. And the programming highly depends on your design style. For instance in a single player game, a lot of weapons might simply create actors that have projectile movement components which fly, and die. In multiplayer you can't really do this with traditional bullets because they move so fast that they may spawn on the server, and then die before they've even had a chance to replicate to clients, and on clients they would see health go down with no visual effects of why.

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How you handle this highly depends on your design style though. For a game with a lot of long range shots, or slower moving "heavy" bullets, you may be able to get away with using actors. A lot of games seem to mimic firing effects though. The visuals are spawned to be relatively but not precisely accurate. They move so fast that it often doesn't matter how accurate they are, it's mostly just for the flashy effect.

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Take one instance, an assault rifle firing. On client this could do traces, to test if it hit something locally. This could tell the server "Hey, I hit this at this location and I was standing here". Server can run it's own checks to try to negate cheating and then register the hit as valid. While this rifle is firing, it also increments a replicated integer on the server, and the server replicates this to all non owning actors. Whenever this is incremented, all other clients play the muzzle flash and sound effects for that weapon but don't really do much else.

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So for effects along, you have a button click, a timer that plays local muzzle flashes and sounds, and calls an RPC which increments an integer on the server. The server replicates this integer as often as it can to other clients with a skip owner condition(Cause you don't want the owner to play sounds twice). When they receive this, they play an onrep function which plays muzzle flashes and sounds for that rifle. Local clients are perfectly accurate, and other clients are close enough to realize that person is firing.

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For actual effect, you have the client doing the button click, doing traces, testing what they hit, and calling a server RPC to say that they hit something, Server runs tests like it's own traces to test out the validity of this shot, and then simply applies damage if it succeeded. Health gets replicated to all, and extra effects get played for that., etc.

orchid garden
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@maiden wadi incase you didn't see my reply about how much the texture changes helped, got +20fps in a area that was lagging abit, cleared up some of the lag there too, so gonna optimize the others like that too 🙂

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seems most the textures are 4k textures

icy mica
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So i just followed a tutorial of an older version of the engine. It explains how to generate a grid. If i follow the same steps i get a different result. In a 3x3 grid size it only generates tiles on 1x1 2x2 and 3x3 the others are left empty. Has anyone encountered this before?

orchid garden
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im finding that issue with alot of the 2016 and earlier videos @icy mica

olive sedge
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any good way to do an onhover on umg border?

real garnet
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how can i solve this problem

minor merlin
maiden wadi
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@orchid garden Wait until you run into the directional light set on static or Stationary causing a 10% frame drop because of a lot of mobile dynamic shadows in screen. That was a fun one too. But yeah. Love a lot of the marketplace stuff, and I definitely understand that it's best just to package that stuff with cinematic quality, but even their "Optimized" versions are not game optimized a lot of the time.

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@olive sedge For what use? Like changing it's color or something on mouse over?

olive sedge
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@maiden wadi yes.. I have a material for rounded corners but I can pretty much only use that on border

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So I use border for buttons :>

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I just found IsHovered though so I think I can work with that

maiden wadi
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You should be able to do the same thing with buttons and their Appearance/Style settings.

orchid garden
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i can model stuff... but when it comes to textures... im not very good at them.

olive sedge
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@maiden wadi I haven't found anything to do rounded borders.. 90° always looks so harsh

maiden wadi
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@orchid garden I think it depends. I was testing out a potential project with a lot of moving AI. Anywhere from 150 to 250 at once. Finally profiled and realized my rendering was the issue... but looking away from them wasn't helping. I don't remember why or the reasoning, but something to do with the way that static vs mobile lights do shadowing against mobile actors. One setting change led from 54 FPS on average to over 65.

orchid garden
maiden wadi
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Just changing the directional light's mobility to mobile. I don't even remember why it wasn't mobile in the first place. May have thought static stuff was quicker. I don't remember setting it to static though before I went looking for that.

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@olive sedge I mean with the material. You can set materials for a button as well and swap them out based on if it's hovered, pressed, or normal.

solemn parcel
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Hey is there a way to make walking angle direction less steep, more 'large' or slow ?

orchid garden
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for directional lighting

maiden wadi
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Yeah that. Really made me reconsider my view on optimizations, haha.

steep holly
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anyone know how to return a float if the bool = true.
or is it not possible

maiden wadi
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From a function you mean?

olive sedge
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@maiden wadi oh, you can punch a material into Image.. Thanks!

orchid garden
minor merlin
steep holly
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Select float is what I needed. For what I'm doing I don't need it inside a function, but thanks everyone for the help!

maiden wadi
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@minor merlin Normally you do this by parenting the arms to the camera, and parenting the camera to the capsule, and the third person mesh to the capsule. Arm mesh follows the camera automatically cause it's parented to it, and the third person mesh animates via an aim offset using baseaimrotation.

minor merlin
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The whole mesh moving was me testing something, which didn't worked

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Oh wait I fixed it x)

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Ty anyway

crude dew
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Pretty simple question I think, I am Casting to RTS_Marquee which is a HUD what do I plug into the Object pin ?

past girder
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I usally put every variable and functions in the player

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Easier to cast to

orchid garden
crude dew
orchid garden
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you need a reference (object) to cast to

crude dew
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So i plug as HUD into the cast?

orchid garden
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is As HUD a var?

crude dew
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Yes

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and its type is RTS Marquee or should it be a HUD.

orchid garden
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does it already have a reference to the RTS_Marquee in it?

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if it does why are you casting to RTS_Marquee? no need to unless your using the cast to see if the reference is valid

crude dew
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Ye it says NOTE : As HUD is already a RTS_Marquee you do not need to cast to it.

orchid garden
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use the var to access the functions / events / vars of the RTS_Marquee

crude dew
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Ahh ok I thought I had to basically "fill" the variable with the object and then i had access to it.

orchid garden
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if you already have the variable filled with a reference you don't need to.

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@maiden wadi can probably help you better.

maiden wadi
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If you're trying to use a HUD class, don't bother using a variable. Just use GetHUD->CastToTheHudclass GetHUD is fast. Variable is unnecessary and creates an extra thing that you need to manage.

crude dew
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I do not fill As HUD anywhere so its an empty declared variable

orchid garden
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what are you trying to do exactly Drib?

maiden wadi
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I presume that this is for drag selection?

crude dew
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Yes I am trying to make a drag selection.

maiden wadi
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If it is, you should go the other way around. Let HUD get a mouse location from your player controller.

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I do the same thing in an RTS project. I store a "FirstClick" Vector2D in the controller, and use GetPlayerController0 cast to access it and also the same get to get the mouse current location to draw a rectangle on screen.

crude dew
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Ahh I got a lot to learn, This is test project for myself to see if i can get like 3 types of units and 1 type of resource, You guys are amazing! Yes it makes more sense to "throw" the mouse values to the HUD and then update the current X and Y locations there as you draw I guess.

maiden wadi
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Sec, I can show a small example.

crude dew
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I was following a RTS marquee tutorial on youtube but it seemed super convoluted with interfaces, functions and multiple casts.

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so i thought to try and find a better way sometimes you learn more from trying things 🙂

maiden wadi
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@crude dew If this is in your player controller.

crude dew
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Thats amazing thank you !

maiden wadi
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Which allows you to leave all of your gameplay programming in the controller, and not pollute your UI class with it.

crude dew
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Makes sense!

orchid garden
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tosses my project at @maiden wadi and watches him scream in agony as he looks at the bp's lol 😉

crude dew
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pmsl

orchid garden
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hehe my projects been a good learning experience though even though i know everything isn't done the best way it could be.

crude dew
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Omg in my learning process I,ve probably made so many bad blueprints that "work"

maiden wadi
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Eh. There's best practice, and then there's practical application. And sometimes.. Practical application tells best practice to fuck off in favor of simplicity of design and speed.

crude dew
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XD

maiden wadi
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One thing to really remember while learning, is to find something that is comfortable for you. Find the ways to interconnect your gameplay design in a way you can easily follow and understand. Also do take Youtube with a healthy dose of salt. They make those videos for views, not for teaching.

orchid garden
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i've wrote out spaghetti functions just to be able to make sure everything functions properly in them, then opimized them so that repeat things are a single call rather then spaghetti code. You've helped me with that one several times @maiden wadi getting something that looks like a total mess broken down to just a few function calls for the repeat stuff.

maiden wadi
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Man, I wish I had one of my old projects still. Was one of my first RTS projects and I think I was like a month into learning, and I had this function that did... a lot of things. It was just this mess of branching logic.

crude dew
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I found one person on youtube to be useful to understand because about 6mths ago I opened UE4 and then promptly closed it lol

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then one day i decide I AM GOING TO LEARN THIS!! lol

orchid garden
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heh sounds like me Drib, got frustrated multiple times, and gave up, then one day just went 'come h*** or high water im gonna make something!'

crude dew
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I also bought a couple of Udemy courses.

orchid garden
maiden wadi
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Another helpful tip is to just read. Specially here on the discord. There's a lot of subtle tips to pick up. Even if it's stuff that you don't fully get.

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And don't fear asking questions. If you're beating your head on a wall, someone can usually tell you why.

crude dew
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I have to say that Im super glad to find this discord i posted on the UE forums and didnt find them helpful tbh

orchid garden
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it looks good in my image editing program... but once in UE4... even being to scale....

📎 unknown.png
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my grid lines are really hard to see... should i make them thicker?

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pixel size is to scale.

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i litterally need it to work for various screen resolutions though... i.e. 1024 1920, 1600, etc.

crude dew
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Grids will cause me another issue but i will be sure to ask xD

orchid garden
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least i got the math working 😄 (told ya guys im not great with textures lol)

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i think i figured out how to resolve the 'not cented' for the map too... (map size / 2) - world location

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er thats backwards... world location - (mapsize / 2)

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it might not be right though...

tight schooner
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You can also try making the map dimmer so the white lines stand out, or make the map brighter and use black lines

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IIRC Arma III used black grid lines

orchid garden
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yeah even with the lines solid i have the same issue @tight schooner

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i originally tried doing the grid using borders that were 2 pixel wide, that was a even bigger mess.

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thicker lines worked, i basically gave each line a shadow to each side, and now...

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hrm... mabye it should be.... world location - ( (landscape size /2) - landscape location) for offset maps....

The reason im trying to figure this out is the world will be comprised of several different landscapes, each landscape (region) will have its own map, and i'll need to be able to show the players location on the map based off the world location, if the map is perfectly centered the math is pretty easy, but being it will be multiple landscapes I have to get the center location of the landscape vs. the players world position so that i can show them properly on the map.

orchid garden
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ug no thats wrong too...

olive sedge
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In my main menu I have a button. OnHover I want to play a little sound. I do PlaySound2D but it doesn't do anything. Ideas?

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It does play it when I do it in Construct.. The hover event triggers (I print) but the sound is not playing

orchid garden
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think maybe i got it now... world location - (position + (landscape size /2)

dawn gazelle
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Under appearance for some reason <_<

orchid garden
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cause the sound is based on what appearance is applied to the button

olive sedge
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oh sweet, thanks @dawn gazelle

nocturne flower
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I wanna set up a need to poop meter so you have to use toilet, any one know any good tutorials that might point me in right direction 🙂

sturdy galleon
orchid garden
trim matrix
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Hello guys, do you know how I could make a widget interact? Let me explain better: I have a widget with a dot in the center that is always on, I want it to give me an input when that dot is over an item, for example i want that when the dot is over a rifle if I press E I can take it

orchid garden
nocturne flower
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Basically I want like

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jusut as i am playing

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something to build up like a timer or bar or w/e

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and i will need find toilet

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press E

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The stuff I don't understand is the making the player use toilet part

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Like making something interactable, haven't found any tutorials on anything like that yet :/

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Thanks 🙂

orchid garden
# nocturne flower Thanks 🙂

there are a few 'sit in chair' tutorials on youtube as well if you want to learn to make it abit more interactive (the toilet)

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could someone explain this to me.... in third person view everything is great (top image) but if i change the camera to first person, i start getting texture stream pooll over budget message (bottom image), all im doing is swapping cameras....

📎 unknown.png
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it makes no sense to me....

nocturne flower
maiden wadi
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@orchid garden Do a "Stat Streaming". The required pool should show you the difference between the two. Other stats might give a clue there too. But the Required Pool is what that warning is from.

orchid garden
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top is third, bottom is first person

dawn gazelle
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Visible mips went up

orchid garden
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its still not making sense to me....

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i can be on the opposite side of the island where there are no meshes in render range, and it'll still do the same.

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seriously though how can just swapping cameras cause that. i can even have the 3rd person camera just 10 units behind the first person camera, and same thing...

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10 units shouldn't cause that large of a increase no matter what direction your facing

dawn gazelle
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Two different camera objects right?

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They have the same settings on both?

orchid garden
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yep same settings on both cameras

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so whats the difference between streaming mips/nonstreaming mips?

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i mean... how does one determine if its going to be streamed or not?

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doesn't make any sense why visible mips is doubling though for first person vs. third, you'd think it would be the opposite....

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all i can find are bandaid fixes that say 'up your poolsize.' yeah that helps abit but doesn't resolve whats causing it in the first place.

dawn gazelle
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you were the one that was doing the LOD Bias thing the other day, yea?

orchid garden
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yeah i did it to some of the 4k textures, gave a additional 20fps in the area.

dawn gazelle
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just completely out of curiosity, try doing it on your character's textures and swap between first and third person, see if you still get the warning.

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I know you're probably hiding their mesh, but I'm curious if perhaps the engine is still keeping track of the textures that are supposed to be there, and it's giving you the highest quality ones available.

orchid garden
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no noticable difference changing the LOD bias of the character textures. 2x more mips in first person then third size is pretty much the same.

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(1k textures vs 2k textures)

dawn gazelle
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🤔

orchid garden
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yeah... i know... and its opposite of what it should be... should be 2x mips in third person, not first.

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.... UE4 is screwing with me again.... i know it for a fact now....

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i took off the character armor and....

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which shouldn't happen.... and i haven't even touched anything for that... so UE4 is causing some wierd crap again...

fickle nebula
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any ideia of why this overlapping is false?

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I click to move the character, but I want check if the place where I clicked is already overlapping the character, but its saying false

limber robin
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So, i want to avoid the VNPC_MoveTo_Failed from being called after i call another AI MoveTo. Currently VNPC_MoveTo_Failed will be called when the npc is moving and i call another AI MoveTo using the same event, then VNPC_MoveTo_Success will be called after he has finished. I don't understand why my blueprint is not working because when i call the Stop function (AI MoveTo on himself to stop the npc) the VNPC_MoveTo_Failed is not called.
MoveTo Event : https://blueprintue.com/blueprint/xg0wvoqh/
MoveTo function : https://blueprintue.com/blueprint/157pupj3/
Stop_npc event : https://blueprintue.com/blueprint/8ux_ge6l/
Stop function : https://blueprintue.com/blueprint/35y204bx/

BlueprintUE
MoveTo Event
BlueprintUE
MoveTo Function
BlueprintUE
Stop_npc event
BlueprintUE
Stop function
orchid garden
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well the other problem is resolved restarting project but the mip thing is still happening, 2x mips in first person then third person...

orchid garden
# dawn gazelle 🤔

@dawn gazelle @maiden wadi reducing the clothing LOD Bias helps some, the only way I can reproduce the first person cams mip count, is if i zoom in enough with the third person camera then make it so that it clips inside the body, once i do that, the mip count doubles.

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seems to be some camera issue... if the camera is inside any mesh, it litterally doubles the mip count for that mesh and all visible from inside of the mesh.

rough jay
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can you make a rolling ball just by using force? i mean be the rolling ball

barren flower
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@fickle nebula instead of set collision enabled use get overlapped

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But you haven't showed any code for how exactly you are getting the reference to the target box you are checking

fickle nebula
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@barren flower tnx for replying, I saw what I was doing wrong, now its working, in one of my attempts I used set object type to no collision, when the movement is complete, so that was my problem

barren flower
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Fair. I assume you are doing this for performance?

It's a good idea, but just fyi you can actually permanently disable colis on all of the boxes, and just do an overlap check when you want to probe one.

#

Even though no collision exists, you can always ask the engine if two objects are overlapping

fickle nebula
#

no it wasnt for performance, I was trying to make the begin overlapnot be "listening" until I click on the floor, but then I had another ideia that fits better

#

I'm making the task mechanic of the sims

barren flower
#

That's a really clever way to do it, looking for the arrow

fickle nebula
#

yeah

barren flower
#

Okay well hang on a second then

#

If your sims are going to be npcs and move on their own, they aren't going to have arrows?

fickle nebula
#

the arrow is in the object

barren flower
#

Oh it doesn't appear when you click as an indicator?

fickle nebula
#

yes

barren flower
#

Yeah no so it does

twilit heath
#

why not make that an actual task then? decision making inside the Pawn, or worse yet - from a third object is suboptimal as your codebase grows?

barren flower
#

So my concern exists then. This is fine for a player controlled sim, but what about an npc?

fickle nebula
#

zlo im making a task, but not in a BT

twilit heath
#

it looks like its in Pawn itself

fickle nebula
#

so once i complete a task, I start looking for a new one again

barren flower
#

@zlo is there a problem having the decision making inside the pawn, though?

twilit heath
#

it just doesn't belong there, generally you want the Pawn to know how to execute its actions

#

and Controller to tell it which action to execute

#

allows you to use same Pawns as both Player and AI

#

without any modifications

fickle nebula
#

hummm, so its a bad practice to let the object decide when the task is done

#

because in my mind I was thinking to let each object implement itself interaction, cause an oven I need to walk and interact, a floor is just walk..

twilit heath
#

for interaction you'll generally want an interface on interactable objects

#

preferably with their own collision object type, so you can just detect interactables via trace

fickle nebula
#

yes, I have an interface

#

that's how I am comunicating with items

barren flower
#

Alright, well then well done all, seems like y'all on the right track

fickle nebula
#

anageeLove tnx for helpin

twilit heath
#

Basically - there is no difference between
1 - You click on interactable, PC tells the Pawn to move there and interact
2 - AI controller's BT decides its Pawn should interact with an object and tells it to do so

#

in both cases its MyPawn->Interact(TargetInterctable)

#

but you can only do that as long as decision and high level controls are in the Controllers, in both cases

fickle nebula
#

My experiences with BT were terrible, I can;t really understand it well

twilit heath
#

just need to break the ice, they click into place pretty fast

fickle nebula
#

for actions that they are to happen once, I couldnt do it

#

because the BT is firing all the time

twilit heath
#

the idea is to leverage the flow of the tasks that don't complete instantly

#

if you were to do move and interact as a task - you have 1 main problem if you never worked with unreal BTs before

#

you click on an interactable, and while you're moving you can click on 10 more and the Pawn will still move towards the first one

#

you need to be able to abort lengthy tasks with a new command

#

its a bit much to type it all here and now

fickle nebula
#

I think it's complex to me, I cant actually follow what are you saying

twilit heath
#

but i do recommend watching all WTS is? Unreal AI videos on youtube

#

they are 5-10 min each and are constrained to single node/topic

#

you can understand it just fine, since you're making ok progress in re-inventing the wheel up there

#

pinned posts on #gameplay-ai will probably have more useful stuff

fickle nebula
#

yeah, I watched some of them, enough to make a bird AI, patrolling the nest and if it sees the player it flies to the nest and if the player comes closer the bird attacks him... So in this case I was having trouble to deal with the Flying to the nest and flying back to the patrol cause both of them happens only once

twilit heath
#

BT starts over when its done

#

also

#

there is a Task that runs a different BT

#

so you'd have a service that detects intruders

#

then a selector

fickle nebula
#

I wasnt able to understand the difference between a task and a service

twilit heath
#

then a decorator gates task that runs AttackBT and aborts lower priority, executing only if there are intruders nearby

#

and finally the PatrolBT

#

service runs repeatedly (in most cases) and updates the blackboard

fickle nebula
#

ahh, so all of this in different BT, I just used one

twilit heath
#

that is its only purpose

#

you can rune a service logic from Task

fickle nebula
#

let me open this project to show you, my mess

twilit heath
#

but that makes your data updating dependent on execution of the BT

#

which is exactly what you don't want in almost any cases

fickle nebula
#

ahhh

#

look the mess

twilit heath
#

service Tick will execute as long as the node is attached to is currently active - no matter where the exec/what task it is in currently

lean thistle
#

Hey all, I'm looking for a way to slice this mesh along a certain line, of any angle 1-67 degrees that I provide. Any ideas on how to go about this?

📎 ex.PNG
#

I'd only need to keep the larger piece

static charm
#

make it a Procedural Mesh and then use the Slice node

lean thistle
#

Very interesting, let me give it a shot I've never used those before

#

@static charm how do I change a static mesh to a procedural one?

static charm
#

I would just a find and follow a tutorial for using Procedural Mesh

lean thistle
#

Okay, thank you

static charm
#

then come back with any questions if you're having trouble with it

lean thistle
#

Absolutely. Thank you very much

cold raft
#

I worked out how to iterate over a map (of Names > Key Bindings), but for some reason it only works when I use the Name key from the original array list and not the outputted map. Any ideas why?

📎 ue4_sanct_keybindings_work_20210117.PNG
static charm
#

does it connect?

cold raft
#

Yes, connects and 'runs' but not all mappings go through - a bit odd

static charm
#

I've experienced Find and Contains nodes not working 100% if using a For Loop, although that was a few engines ago.

#

Do all mappings go through using the Find but connected as shown in ur pic?

cold raft
#

when I connect the name from the find output (as shown in fail), only the first mapping works - others fail. It's odd

orchid garden
#

isn't find just basically a loop with break?

lean thistle
#

@static charm , I've been very successful with your recommendation, but I'm not sure how the Plane Normal works on the slice node. When I set it to (0, 1, 1) it slices the object on a slant into two equal parts, which is expected. I understand that these values are related to the scale of the mesh. What math must be done to determine the Z value of the normal that would result in cutting a 45 degree cut, such as in the image i sent with my original question?

static charm
#

i believe you want to actually put like .5 for the y or the x

#

i think Z is more like yaw, aka spin

#

x and y would be the tilting/angle of the cut

lean thistle
#

Hmmm when I use 0, 1, 1, it slices on a slant and makes a rectangle into two equal triangles. I experimented with the Z, made it 0, 1, 100, and thats the only coordinate that gave me the expected result

#

Let me show you my results

#

The black line represents the normal being 0, 1, 1, and it slices all the way to the bottom. The blue line is when the normal is 0, 1, 100, slicing much higher

📎 ex.PNG
#

So it seems the Z value changes the angle of the slice in the desired dimension, but im looking to find the exact relationship between the scale of my mesh, and the Z value so that I can determine the exact Z value i need to cut 45 degrees (the red line)

static charm
#

thats not how it works. the values are expected to be 0-1. if greater then 1, it just normalizes them again.

#

you need to put a position in

#

for where your slice is starting

lean thistle
#

Oh I see

#

I set the position, to the top left corner

static charm
#

you can use valuves greater than 1, its just you don't need to

#

start by editing one axis at a time

#

0, .5, 0

#

etc

#

to see it

lean thistle
#

So, if i understand correctly, would 1 represent the bottom of the mesh when manipulating Z, and 0 represent the top? Aka 0, 1, 0 would mean horizontal from the start location

#

I will surely try editing one at a time as you said so i can see for myself

static charm
#

position represents top or bottom of the mesh, or anywhere in the game world.

#

normal represents the rotation/angle of the slice

lean thistle
#

I see, let me try

lean thistle
#

Thank you! It was maniupulating y. To slice at a certain angle, I divide width/height, multiply by the tangent of the desired angle, and thats the Normal y value

static charm
#

nice!

lean thistle
#

Now, is there a way to reverse which half of the mesh is kept?

static charm
#

yes change the normal value to a negative

lean thistle
#

Sounds beautiful

mortal cradle
#

I'm trying to make a mechanic that would work like receiving messages on the phone and I can't think of a good way to do it, I tried using timers and begin play but ofc begin play only checks all the variables once meaning that I would be very restricted and tick doesn't work with timers, also the messages would be received depending on a float rng and a boolean variable. What do you think would be a decent way to go about it thinking that there could be hundreds of messages throughout the game?

dawn gazelle
#

A timer with a random check?

mortal cradle
#

by saying random check you mean anything like overlap, any on click etc?

dawn gazelle
#

Well, you can set a timer to go off however often you like, whether it be every 30 seconds, or every 5 minutes. When it does fire, then have a random % chance of it proceeding.

static charm
#

don't make it like cypberpunk where random messages go off in the middle of missions lmao

dawn gazelle
mortal cradle
#

Thank you, will check this out, never thought of using just one timer for some reason I always thought of using a ton of them which would probably be horrible in a long run

lean thistle
#

How might I make a material tile rather than stretch as it's object is scaled?

static charm
#

an easy way is making it world aligned

#

also there is a Graphics chat, if you have more in depth material/rendering questions

#

although if your object moves in the world, i believe the titled texture stays put while the object moves. so the above wouldn't work

#

There's other solutions for titling, i just don't know off the top of my head.

lean thistle
#

thank you very much once again

#

Do you have any idea why a procedural mesh stops responding to On Cursor Over events after being sliced?

static charm
#

hmm, no idea

#

especially if you aren't creating the other half of the sliced mesh

lean thistle
#

Unfortunately it doesn't respond regardless of whether i make the other half

#

I'm pretty stumped

static charm
#

the only thing i can think is that collision is related to it

#

but ive never used mouse/cursor over events

#

you can try manually using GetHitUnderCursor

#

or whatever it's called

#

and make your own logic for it

#

unfortunately it's not an event, so you'd have to treat it like a line trace

lean thistle
#

Okay ill give that a go, thank you

#

It won't even recognize the actor from that either, once its sliced

#

Which makes me think the visibility channel, or something with collision, its messed with

static charm
#

you can generate collision for it again manually

#

but the slicer is supposed to slice the existing collision and not change any settings

lean thistle
#

By generate collision, do you mean something other than Set Collision Response to All Channels?

static charm
#

i mean u can try that first

lean thistle
#

I tried that node, then did a Set Collision Enabled also, no luck

#

what other way can i generate collision again?

static charm
#

does the mesh work with the events before being sliced?

lean thistle
#

Yes

static charm
#

as a procedural mesh?

lean thistle
#

Yes'

#

I printed the collision responses to each channel before and after, none of them change

static charm
#

you can try using one of the Add Collision nodes

#

just to test it

lean thistle
#

The only one i'm seeing requests an array of convex verts

static charm
#

ah yeah sorry, im using a plugin for a different one. you can Get Mesh Section and use the verts to make a new collision

#

but i dont think it will work, because it sounds like some kind of bug or something happening

lean thistle
#

Yeah no luck

static charm
#

my only other thought is to generate a new procedural mesh from your current sliced one

lean thistle
#

Is there a node for this?

static charm
#

well you can have a spare empty procedural mesh component and then just create section for it using the sliced mesh's data

#

or you can Add Procedural Mesh

#

which is like spawning

#

again this might not work either if there's some bug

lean thistle
#

I see, I'll try

#

I'll try this on 4.26, I'm using 4.24

lean thistle
#

No luck on 4.25, i'll try 4.26 tomorrow, thank you for all the help tonight

zinc flicker
#

Hello, I tryed to figure out how to make a Enemy Scanner that makes them visible through a wall after scanning. I found some tutorials about the individual stuff, but is there like some hints where i can find better tutorial or for what i shold search, since there are barly anything about that topic.
I searched mostly for "enemy scanner" or "radar" or "see through wall", if there is a more accurate searchtherm i shold search?
My goal is to creat binoculars that autoscan enemys if they near the center of bino crosshair and then make them show through walls with a marker above them.
Thanks

📎 2021-01-17_03-18-18.mp4
weary jackal
#

This one @empty canyon

#

The guy is @quasi frost who is creating the same battlefield you were saying

empty canyon
#

@weary jackal okey thanks so much

static charm
#

Sky, i don't know what you mean you seem to have it working in the video

#

the only other search term is Outline

coarse marten
#

random question.. is there a way to adjust how far a player can walk off an object without the use of blocking volumes?

📎 unknown.png
#

my player cant fall from stuff which is fine as i'm doing something like classic Resident Evil, but it looks really jarring that they can go pretty much off the edge of things like the screenshot above 🤔 I want to make it so they're limited in that regards

static charm
#

there's some Edge / ledge stuff in the character movement settings

coarse marten
#

I didn't even notice Ledge Threshold LMAOOO

#

ty i'll mess with that.

#

rip that wasnt it Cry

static charm
#

oh

#

its perch

#

i knew it something in there

coarse marten
#

perch?

#

OO

static charm
#

wait

#

i dunno

coarse marten
#

It might be perch but it doesnt seem to be with the way how im setting it

static charm
#

set the perch radius

#

to like 40

#

and if u want the character to not be able to go off the edge

#

then turn off the ledge setting too

coarse marten
#

Ooooh! I see!

#

Thank you very much!

lean thistle
#

@zinc flicker in your level add a post process volume, add a post process material to it, then for the enemy actors do a get components by class, get all PrimitiveComponents, and for each use the Set Render Custom Depth node

royal pagoda
#

Short question, how can i acess a camera on a different pawn? ive tried to create an global variable with the camera but i cant see the global camera in other bps

zinc flicker
#

I created a distance marker Widget. It works when i only use one but if i use 2 it will show me the exact same distance, how do i need to fix that? I think i need something like a distance trigger for a current location so i can use the same widget multiple times for example in enemys to show them all in a different distance.

📎 unknown.png
dawn gazelle
# zinc flicker I created a distance marker Widget. It works when i only use one but if i use 2 ...

You probably don't want to do what you're doing on tick currently as getting actors of class can be an extremely intensive depending on the number of actors in your scene. That being said, what you're doing is also only getting the value from the very first actor that is found (the Get 0 you have after the All Actors of Class "Waypoint Actor"), so you're getting the value only from the first one the command is finding. You need to get and store references to each actor that you're trying to get your distance to.

weary jackal
#

@zinc flicker what you can do is a sphere trace by channel with the filter of actors which implemented an interface which can recieve trace. if it's so you can add those actors in an array and for each elements in that array if they are in range of your player then create the distance widget for them. it will create dynamically so you will get the accurate distance. after constructing the widgets. you must have to calculate the refresh distance on tick so it will change the distance based on player and enemy position

mortal cradle
#

Is there any way to change the time value on a timer after begin play is fired? I would like that time variable to slowly increase depending on how long someone is in the game but it seems like as long as this timer is on begin play then it will always hold onto this very first value.

maiden wadi
#

@mortal cradle You would likely need to call the timer again each time it runs with a new input.

mortal cradle
#

I don't think it's possible when ie I would like that time value to increase every 1 second

dawn gazelle
#

Yep, looks to work :p

mortal cradle
#

Thank you, I'm trying it out, I thought that I will be forced to use tick

dawn gazelle
#

Just make sure timer time is > 0 when starting the timer otherwise it won't fire.

mortal cradle
#

Damn it does work, thank you once more

edgy halo
#

Hey, can I toggle visibility of actors for specific players? I want to create a powerup that will allow people to be able to see through boxes in a bomberman styled game?

sand gazelle
#

@dawn gazelle I'm late but may I ask that your code is used for?

dawn gazelle
#

Kelt was looking for a timer that increments every time it fires. That's what the code above would do.

#

So the first time it fires, it fires after 1 second, the second time, it waits 2 seconds and fires, third time it waits 3 seconds and fires etc.

tall pine
solemn parcel
#

Hi, i'm struggling on this since yesterday. How can I select a specific item in an array, and clamp the maximum limit of how many of this item can spawn ?

stray island
#

How do i set an array values , based on another array values

chilly jetty
#

Hi I'm trying to get the "OnActorBeginOverlap (Triggerbox)" node again after deleting it but it wont show up

#

is there a way to get it back?

tall pine
chilly jetty
#

thanks

#

I actually have another question

#

I'm trying to get an enemy to jump when it enters a trigger box

#

is this the right way to go about it?

#

how to i initiate the overlap event for the enemy

cold raft
stray island
chilly jetty
#

Nevermind I got the answer for the overlap event

stray island
#

How do i get a specific index of an array

solemn parcel
#

This picture is an exemple part of my spawning system. In that exemple, I want to know which of the two actors is in the ReturnValue of the SpawnActor. The point, as you can see after, is that each one of them got a counting system (with a Max Number), so I need to recognize which actor is spawned to go to the specified Spawned Entity xxx array.

📎 dcsghjlll.png
#

I know I could branches, with as conditions ReturnValueActor = xxx actor, but it would make tons of branches. Is there another way to do this ?

#

@stray island with a Get (a copy) and selecting the index you want in the integer part ?

cold raft
stray island
stray island
#

I doubt i made sense lol

olive sedge
#

Is it possible to completely destroy a widget? I'm only seeing RemoveFromParent here

#

@stray island pull the array length after you insert

#

@solemn parcel why not just branch on the class?

solemn parcel
#

@olive sedge Just edited the text answering to this the moment you sended it ^^

olive sedge
#

right

solemn parcel
#

Well I could, but i'm pretty sure there is something much more reliable and simple to use. And more 'dynamic'

olive sedge
#

do you have an enum?

solemn parcel
#

nah

olive sedge
#

you should, could then switch on the enum

solemn parcel
#

I didn't got to much the hang of enums still yet, but I would you make the ReturnValue 'recognize' which actor it is then ?

olive sedge
#

@solemn parcel you should definitely have an enum like that.. you could then build a map of class -> entity type and then switch on that

solemn parcel
#

@olive sedge I'll go search about that ! Thanks 😉

crude dew
#

Can you call a InputEvent in a HUD blueprint or is it better to call Input Events in a PlayerController?

minor merlin
#

It's better to handle every input in the player controller

crude dew
#

Ok thank you

minor merlin
#

Np ^^

crude dew
#

I,m really struggling to understand how you use HUD,s atm lol I know how to put widgets into the HUD like Health Bars and stuff but I am trying to make a draggable rectangle, Someone did try to help me yesterday but I couldnt get it to work xD
Im guessing a HUD is the actual screen area and a Widget is something you place in the HUD in a location ?

#

So if i wanted to draw a rect would i use a Widget or would it be a HUD ? For example a RTS selection box is a HUD or a Widget?

#

I know I would use a Draw Rect node and store the 1st click as a vector 2 and then while a user holds the mouse button update a 2nd click variable as a End Location and plug them into the Rect?

tall pine
minor merlin
minor merlin
minor merlin
crude dew
#

no problem thank you for trying to help ;D

minor merlin
#

Np :)

olive sedge
#

this is some of my first code, I am gonna try to make this better actually

#

okay, could create a widget, override OnPaint and then do DrawBox but don't fix what isn't broken in my case

crude dew
#

@olive sedge Thanks! I,ll check it out 🙂

hearty jackal
orchid garden
hearty jackal
crude dew
#

lol @hearty jackal I was about to say "How the hell you get such straight lines like that lol

hearty jackal
orchid garden
#

@crude dew @hearty jackal there's the link for you

#

page 25 of plugins in launcher

#

(@ 20 items per page)

hearty jackal
somber quail
#

i had to go back to unreal engine unity didnt install right again

#

soo

#

im back

fringe geyser
#

Is there a way to create scene components that hold multiple children components within them? For example, Add Component -> YourCustomComponent, and it adds a component with multiple children components.

orchid garden
#

components can have child components? er i thought u meant components inside components, my bad.

olive sedge
#

I shouldn't be able to walk through it

#

Or what am I misunderstanding on how this works

#

One is object type PlayerPawn and blocks WorldStatic, the other is WorldStatic and blocks PlayerPawn.. I don't understand why it's not blocking

icy mica
olive sedge
#

I just saw I can just preset to Spectator but I still want to understand how this works

#

No, I have sweep enabled

#

but thanks @icy mica

past girder
#

hi I have 2 vectors vector one get the actor location+ getting the forward vector of the camera (The location the player is looking at) vector 2 stores the calculated value of optimal location, how can i get the closest optimal value to where the player is looking at?

orchid garden
#

to me it sounds like your trying to rewrite the "Find Look at Rotation"

past girder
#

2 vectors, vector 1 stores the value of where the player is looking at. Second vector stores the calculated location where its best for the player to walk towards

#

How can i do this to get the closest possible location to where the player is looking

orchid garden
#

a linetrace?

past girder
#

Ok, i can try that again. Thanks

orchid garden
#

could do line trace and get the location that it hits at on whatever it hits.

orchid garden
maiden wadi
#

@olive sedge In your specific case with your one function, you can condense your function calls by 33%. In blueprint, and even more so in material shaders, you want to do operations as few times as possible. Blueprint especially has a large overhead for calling functions.

📎 unknown.png
orchid garden
#

hey @maiden wadi you have much experience with animations in UMG?

maiden wadi
#

A little bit. Nothing crazy fancy.

olive sedge
#

@maiden wadi cool, thanks

orchid garden
#

im trying to figure out how to fade text from left to right (or right to left)

maiden wadi
#

Hmm. Let me look but I don't think that's doable with a normal animation. That sounds like shader territory.

orchid garden
#

ouch

#

i have a PoI trigger box i setup, which adds a map pin in the umg when its located by the player, what i thought might be nice to do is pop up some text that faded in from the left to right, couple seconds pass, then fades out right to left saying something like "Discovered xxx Location"

#

right now how it is, they walk into the trigger box and they have no idea they discovered something lol...

#

its simple enough to add the text to the hud but i thought the fade in / out thing would just be some nice eye candy.

#

disable it?

maiden wadi
#

I don't see anything for fading in directionally. Just the default opacity animation or direct visibility stuff. My initial thought on that would be a shader that you can pass a parameter to repeatedly to pan it, and then disable the timer/tick that's panning the material.

orchid garden
#

yeah i couldn't find any way to apply a opacity mask image to the text in the widgets themselves, even using containers. ug... shaders.

maiden wadi
#

@trim matrix Do you mean for particle components that come with actors? There should be a setting for the component like "Auto Activates" or something.

#

Niagara or Cascade particle component?

#

Near the bottom.

#

Same setting if it's a Niagara system. Which as a side note, I recommend getting used to Niagara over Cascade.

#

Speculation is that cascade is likely going to be dropped sometime within the year or very early next year. I'd be surprised if it makes it into UE5.

orchid garden
#

so... if i use this... and still want keyboard events... do i setup keyboard events inside the widget itself?

📎 unknown.png
maiden wadi
#

Not too familiar with mobile, but performance wise Niagara is quite a bit better in most aspects. But really it just comes down to the artist.

#

@orchid garden Yep. The OnKeyDown stuff. Have to be certain that the UI gets focused though.

orchid garden
#

only reason i was asking, was thinking it might be nice if they could close the inventory with the same key that opens it.

#

i do have a close button but still ... user friendly and all that...

maiden wadi
#

You can't use the project inputs like that. Not directly, that's why I have a small library of functions that test keys by their project inputs. So for instance I can just input the key from OnKeyDown, and test quickly which input it is and branch on that.

orchid garden
#

hrm... okay... i'll leave it like it is for now lol.

orchid garden
#

well i got poi's working, they trigger and add the map icon, but only once per player, and they are translating to the position on the map okay 🙂 even if landscape is offset:

📎 unknown.png
edgy halo
#

Hey so I have this level where I want to spawn actors but I want the player start to be spwaned using the level blueprint? So can I delay the player spawn done by the game mode a bit?

#

It spawns the characters on its own at the player starts

little cosmos
#

Hey! I am setting the character location in the lvl based on UI widget buttons. But can't get it to rotate like my target point. It keeps its rotation before the button was pressed. tldr: I wanna make character face targer point rotation when teleported.

📎 unknown.png
#

I tried just getting the actor rotation before doing all this combine nonsense

#

nothing seems to work

little cosmos
#

Solved

maiden wadi
#

@little cosmos Set the Pawn's location, and it's controller's control rotation. Control rotation overrides any sort of rotation done to the character.

little cosmos
#

Yeah figured that out. thanks

round basin
#

Hello I want a random sprite, so I did this but it doesn't work, can you help me ?

📎 unknown.png
white crypt
#

random integer is called once, so at that moment it only picks one number

round basin
#

Ohh okay

white crypt
#

add a print string and you will see that it prints the same number

round basin
#

so how do I call it 3 times ?

white crypt
#

for each sprite use a different random integer

round basin
#

it doesn't work

white crypt
#

it should

round basin
white crypt
#

show the index

#

of the select nodes

dawn gazelle
white crypt
#

it would be easier if you made then into arrays

#

you are using the same random integer

#

so ofc it will return the same number

round basin
#

I did this

#

I'll try making an array

dawn gazelle
#

The issue lies not in the random selection of the object, rather what is happening after.

white crypt
#

works fine

dawn gazelle
round basin
#

yes but how do I set my sprites ?

white crypt
#

oh yeah look it rlly does

#

mb then 😄

#

i assume since its a pure function

dawn gazelle
#

Every call to a random node will generate a new random number, so it's important that if you need to use the same random number more than once, you set it before using it.

#

As far as using the sprites, I'm not familiar with them.

round basin
#

I want a different number for each sprites

dawn gazelle
#

But your logic for selecting them randomly should be fine.

white crypt
#

i think it has to do with the select node

round basin
#

This works fine

orchid garden
#

is there a simple way to tell how long a player has bee falling for?

soft orbit
round basin
proud hull
#

@round basin you really should put all those sprites in array like suggested.

white crypt
#

if you make an array of your sprites

#

then it will work

#

using select it picks the same number, cant say why

round basin
#

Okay yes I'll try that

white crypt
#

you could ofc generate a number on begin play for each sprite and promote it to a variable but thats just over complicating stuff

proud hull
white crypt
#

oh they added that in 4.26, good to know

round basin
#

I'm using 4.25

white crypt
#

then this should do the trick

dawn gazelle
#

Do Last Index and you don't need the -1

proud hull
#

random integer node already subtracts 1

dawn gazelle
#

Length by itself like that can cause an error as the largest value will be out of range of the array.

proud hull
#

Max - 1

dawn gazelle
#

Ah, nvm.

round basin
#

I think the problem is from the set sprite node because when I set the defalut value to none there's nothing

proud hull
#

Sol 1 is set to none you said?

round basin
#

By default yes

proud hull
#

Yep, that is the problem, you are setting the target of nothing, hehe

white crypt
#

as well as getting accessed none errors probably

proud hull
#

Where do you set Sol 1?

round basin
#

oh wait it's just because my sprite was set to static not movable

stray island
#

So i have a structure array variable that is instance editable

The structure has an integer variable that should be numbered exactly like each array index of the structure

For example my array list has the 3 structure with that variable, i want that variable to take each index number as their value so it will be 0 then 1 then 2

round basin
#

Now it works

#

...

proud hull
#

With that new ForEachLoopByReference, you can do something like this:

📎 unknown.png
stray island
#

Thank you, will do some testing hope i get it right

#

What do i have to plug to struct out?

proud hull
#

Nothing goes with struct out when you use the ForEachLoopByReference. It simply changes it in the array since it is by reference.

#

Make sure to expose the necessary pins for updating with the "set members" node.

stray island
#

Oh

#

But how did u choose what is the var item set to , didnt see

#

Oh its in the first picture

proud hull
#

NewVar0? I just made a random struct array to demonstrate, lol

stray island
#

But my item inside structure isnt array

#

The structure itsself an array

proud hull
#

Oh, you are not working with an array of structs?

little cosmos
#

How can I define the xbox controller up and down buttons to actually work properly? right now it's kinda clumsy and unintuitive to move between points

📎 unknown.png
stray island
#

I am working with array structure but inside it a variable that i want to edit

#

I think yours will still apply will do some testings

#

Thanks alot

proud hull
#

Only expose what needs to change and everything not exposed will remain the same.

pulsar lion
#

This is probably common knowledge but is it better to create a widget once and then add and remove it from viewport on button press or to create a widget every time you press the button?

proud hull
pulsar lion
#

inventory widget

proud hull
#

If a player can go for minutes without needing to see it, then create it on the fly.

pulsar lion
#

I see. So what is the difference between these two methods?

proud hull
#

Mostly HUD related widgets will only be hidden and revealed instead of destroyed and created.

#

The difference is keeping resources in memory, that is about it.

pulsar lion
#

The inventory widget from epics Action RPG is created on button press so I was wondering

proud hull
#

If your menu is very lightweight, then you can hide them and you will be fine.

pulsar lion
#

Ah, got it

#

thank you!

proud hull
#

Just make sure you know about "focus". Hiding a widget doesn't mean it loses focus and could screw with your input.

pulsar lion
#

yeah I've already dealt with that one

proud hull
#

More than likely you are already utilizing the game only and ui only nodes, etc.

#

input mode nodes, more specifically I mean.

stray island
#

@proud hull it worked thanks alot

#

Now it auto sets the index number

orchid garden
#

any easy way to tell how long a player has been falling?

#

im guessing its going to have to be a custom function, not seeing anything for fall time

proud hull
#

Either that or set float to game time when falling is set to true (can be done in your animBP since that already checks for change in falling).

orchid garden
#

yeah most the character movement stuff is going to be handled inside my animation bp to avoid needing to call to a specific animation bp (shared master character)

proud hull
#

Just be weary of the default ThirdPersonCharacter AnimBP, since it doesn't really set falling perfect. It simply knows when the player is in the air, but you could be going up instead of down.

orchid garden
#

yep

proud hull
#

I measure the up velocity and also take that into consideration. Negative up velocity means falling.

orchid garden
#

i need the fall time to add damage based on how long they were falling for

proud hull
#

Could make the damage based on their downward velocity then.

#

Create a curve for it,

unborn maple
#

im having major issues finish this game ias i have alot of hud bugs. i am storing the variable on begin play in the breakithud widget. i then get a reference to the widget and get a reference to the stored variable to set visibility but i am getting a access none error even after rebuilding from scratch.

📎 unknown.png
proud hull
#

This way it isn't strictly based on time, like if someone used a parachute it would take a lot longer to fall, but should do less damage.

#

Measure downward velocity at the moment they hit the ground (can be pulled from a hit event).

orchid garden
#

yeah when they have x item equipped for slow down a different multiplier is applied.

dawn gazelle
unborn maple
#

do i need to store the variables in the same blueprint class of the state of game as it not being access in the hud class for some reason

proud hull
#

But you could store the current game time instead.

dawn gazelle
#

Ah good point 😛

proud hull
#

Now also stores the entire date/time and that is much more than needed, haha.

#

Unless you plan to allow a player to fall for days, real life days.

#

Also, same thing with the falling state again, it isn't really falling, but "in air", so it triggers the moment you leave the ground, whether going up or down.

orchid garden
#

simple check can resolve that

#

current player z vs previous player z location

proud hull
#

But won't be able to utilize that on change event without using a timer or something.

#

Adjust timer time if you want it more accurate. Basically the time in the timer represents the margin of error.

#

Gonna make one that also just does math based on gravity z, hehe.

orchid garden
#

i'll give that a try too

proud hull
#

Normal impulse is always returning 0 so I can't do any gravity maths. 😢

#

Anyways, the state change is more efficient than relying on a physics based hit event. At least I would think so since it is already testing for those changes regardless.

orchid garden
proud hull
orchid garden
#

yep pretty sure there is some glitch with the direction they are falling

proud hull
#

I added a 2nd float variable to store game time when jump starts and I print that separately here:

📎 unknown.png
#

You wouldn't happen to be using any sort of time dilation?

orchid garden
#

found the flaw

proud hull
#

Might need to also clear timer on false

orchid garden
#

seems to be related to setting the game time.

#

i jumped for 0.2 seconds but fell for 2.8

#

jump was set right after set timer

solemn parcel
#

So I'm working on the elements between camera and character being invisible. Tho when it overlaps foliage trees, all the trees of the same foliage are going invisible. Is there a way to select a solo actor from a foliage ?

proud hull
orchid garden
#

each time i jump it just keeps going up O.o

proud hull
#

Falling started print string is never triggered for you.

#

Meaning it never actually sets the gametime variable.

#

Somehow you are never getting -Z velocity, heh.

orchid garden
#

its getting set

proud hull
#

Not sure, works perfect on my end, heh. Can't get it to reproduce what you have.

#

It is printing "Falling Started" for you?

orchid garden
#

yep

proud hull
#

That should work then, unless maybe that gametime variable is being adjusted somewhere else too.

orchid garden
#

onmovementmodechanged is getting called more then once.

#

ah nm thats when it changes out of fall state (second call)

proud hull
orchid garden
#

jump up onto something

royal pagoda
#

Guys, how can i hide a certain area of a body? i have a mesh which has 3 pieces of clothing on it material etc is different and how can i hide it now?

proud hull
#

Works jumping onto something too

orchid garden
royal pagoda
#

thanks! also ill research modular bodys!

strange pike
#

how do i get a reference to an actor in my level from an actor BP?

orchid garden
# proud hull

not for me, anytime i jump up on something fall time is always greater then jump time.

proud hull
#

Ah, nvm, I got that backwards.

#

You probably want to hide a body part sticking throught he clothing.

#

You can set the bone scale to 0

#

Or use hide bone node that does the same thing.

orchid garden
#

its because falltime = 0 when jumping onto a ledge. so its displaying game time in seconds.

proud hull
#

If that is the case, you may need to set the timer < node to a <= node instead.

orchid garden
#

yep thats exactly it. i set fall time before setting the timer and its always equalling jump time.

#

when jumping up on a ledge that is

proud hull
#

This ledge you jump onto just happens to be the exact height of your jump?

orchid garden
#

nope its a combination of the timer delay and jump height.

proud hull
#

If fall time is less than 0.05 seconds, then the timer will miss it since it only checks for -Z within 0.05 seconds.

orchid garden
#

yep thats whats happening

#

so... could just do a if falltime < jumptime do something.

proud hull
#

If you add something like this, then it should clear up that problem.

#

Also connect the false to your print strings

orchid garden
#

even walking off a ledge falltime is 0.1 shorter then jump time

covert delta
#

How can I get an actor to trigger an event hit/overlap with a skeletal mesh?

I'm using just the default mannqeuin which appears to have a physics actor set up. And if I understand correctly, this is more or less a rigged up collision system that maps hits to bones.

proud hull
#

You using default animBP?

#

default TP AnimBP actually does a slight jump when walking off ledges.

orchid garden
#

i've made a basic animbp for my character

proud hull
#

If you copied any jump logic from the default animBP, then you may also be experiencing the same slight jump issue.

trim matrix
#

Hello guys, I have a question: if I add a sequence and in 1 I add a delay the 2 will start only when the delay is done or it will start anyway?

orchid garden
#

just so i could move around n' jump lol thats all it does right now. haven't added any of my other animation sequences to it (third time redoing entire project) was more focused on getting the inventory system done at the time.

#

aren't sequences ran like timelines?

#

that was my understanding of them

proud hull
orchid garden
solemn parcel
#

So I'm working on the elements between camera and character being invisible. Tho when it overlaps foliage trees, all the trees of the same foliage are going invisible. Is there a way to select a solo actor from a foliage ?

orchid garden
proud hull
#

Protofactor INC, FTW!

#

I love their monster models, not so much humanoids.

orchid garden
#

ah yep thats who i meant lol. was looking at some of their critters

#

i like their turtle heh... but donno bout their models

proud hull
#

Been working on making an animation blueprint and AI (BT/BB) to bring them all to life.

#

Making it universal too, so any monster can just make a child of it and use it.

orchid garden
#

this big guy:

proud hull
#

I got the whole pack, hehe

orchid garden
#

so i take it you like their critters pretty well?

proud hull
#

Yeah, they got a ton of good ones.

orchid garden
#

yeah i'd seen some in there i'd like to use but didn't know anyone who had used any of their models 🙂

proud hull
orchid garden
#

lol

proud hull
#

Brought to life just to be chopped up

#

hehe

orchid garden
#

lol thats what i was lauging at

#

looks like you have several different packs of them

proud hull
#

Another plugin I am working on. Procedurally makes those limbs that fly off. No need to pre-make the limbs and make the monsters modular. Only works in 4.26 though since they exposed a needed function to the engine.

#

It is the complete monster pack I got. Includes all the other monster packs.

#

Tried to release the plugin on the marketplace and it was refused for "Not enough content". Friggin 3rd time they told me that for separate assets (the others I just put on my github since I planned for them to be free).

orchid garden
#

😦

#

i've got a couple really tiny packs off the market

proud hull
#

The plugin was just one node, lol, so they refused it. Not realizing what it does, I guess.

orchid garden
#

maybe make a sample scene that shows what the plugin does?

proud hull
#

I'm like "what the hell, it copies a specific limb from a skeletal mesh, how is that not enough?"

#

I'll just make some extra useless nodes and resubmit praying someone else looks at it this time, haha.

orchid garden
#

lol

proud hull
#

Yeah, I'll also need pretty pictures. It seems like that is all they look at.

#

Test if it compiles successfully, check out pictures, pictures look great, approved!

#

It just baffles me that someone can make a simple asset that utilizes the node on the right and that gets accepted multiple times already, but my unique node (on the left) gets denied, hehe.

📎 unknown.png
orchid garden
#

hrm intresting

#

i have something thats not really complex but saves alot of time that i was going to submit to the market but... now you got me wondering if it would even be accepted lol...

proud hull
#

So many slicing assets on the marketplace and most people don't even realize it is one node that does all the work in those assets.

#

I mean the assets look cool and all, but follow a 5 minute tutorial on how to utilize that node and you can remake over half of those assets.

proud hull
#

I chose to include my AI system with it, just so they can't deny me for "Not enough content" lol

orchid garden
#

thats something else i gotta learn, AI

orchid garden
# proud hull

btw, that invalidate timer addition cleared the zero falltime issue

proud hull
orchid garden
proud hull
#

That additional branch will always return true in that spot, since that event only runs when the timer exists.

orchid garden
#

oops i connected something up wrong trying to clean it up lol...

proud hull
#

Connect the other false to it, yeah

#

It can still stay there and connect to the set and clear nodes, like you have it. Even cleaner than what I showed you.

orchid garden
#

lol hrm i fubared something else along the way... now im getting 0 for everything

proud hull
#

Does it look like this?

orchid garden
#

it did

proud hull
#

More like this actually

orchid garden
#

yeah, i don't get it but while that one doesn't work.... this one does...

📎 unknown.png
proud hull
#

Weird because that is the same as the other screenshot.

orchid garden
#

basically yeah, just the true on a seperate set / clear

proud hull
#

Essentially, if you jump, the timer will invalidate immediately.

#

If you fall off something, without jumping, then it will work.

#

At least that is what I see when following the logic there.

orchid garden
#

with the second i get this jumping up on a ledge:

sick sapphire
#

A problem:
Is there a way in blueprint to make it so that even if roll=/=0, when the player moves the mouse in the corresponding direction relative to his view, it will rotate the camera/player according to direction relative to view

📎 unknown.png
proud hull
orchid garden
#

yeah just had the false in the wrong branch

#

there got it all nice n' tidy gain and this time working lol

proud hull
#

Sweeeet, I expect royalties! Hehe, jk.

orchid garden
#

i comment stuffs so i will remember to stick a note in the credits screen 🙂

lone garnet
#

If I wanted to have many, many actors in the level, how could I perform an event after a certain length of time without slowing down performance with a bunch of timers?

#

Like a bunch of trees for example.

proud hull
lone garnet
#

If i wanted to Regrow the trees after a certain time of them being destroyed

proud hull
#

Ah, I see.

#

You need to build yourself some sort of time manager, so it can be one actor that takes care of all of them.

#

Tree gets destroyed, adds itself to time manager with what time it should regrow, when time manager finally gets to that tree in the queue, it tells it to regrow and removes it from the queue.

#

Then you can set this time manager actor to do all this stuff on tick, but set its tick interval to something like 1 second, so it is not called every frame.

#

This is a case where using tick would be ok, but you could also just have it run on a looping timer created on begin play as well.

lone garnet
#

@proud hull Ah yeh a time manager sounds like the right path. And what about in the situation where there is a very short time period between regrowing trees. For example you cut 20 trees down one after the other so there wont be much time between each regrow event. Will this be much of a hit on performance do you think?

proud hull
#

Not if the event only runs once per second or something.

lone garnet
#

ok that sounds like the solution. I'll give that a shot.

#

Thanks

proud hull
#

With some sorting algorithms, you can even sort your time manager to make it more efficient.

lone garnet
#

In what way?

proud hull
#

So it won't have to iterate through every object in its queue every time.

#

You can iterate only what objects currently need to be spawned.

lone garnet
#

ah i see so like, only do the next and not check them all?

proud hull
#

I am imagining a Float to Struct map. Or actually Float array and Struct array in parallel.

#

Struct holds all necessary info to spawn the object.

#

Float is the game time to spawn it.

#

So if the map or arrays are sorted by game time to spawn, you can iterate through only what needs spawning during that cycle.

lone garnet
#

what kind of information would be needed other than just the time destroyed? If i was to do levels of regrowth then sure but other than that...

proud hull
#

You need to know the class of the object, the location to spawn it, etc.

lone garnet
#

I could maybe do a priority check. Like have everything that can regrow just have an int value?

#

ah yeh right sure.

#

then get last int and +1

proud hull
#

The struct can hold other values too, like the health of the object.

lone garnet
#

sounds like a solid foundation

proud hull
#

If you plan to keep the actor live (not destroying it) and it can be turned on/off, then you can simplify what info you need even more.

lone garnet
#

like only get it to half health kind of live?

proud hull
#

More like you harvested the tree, but technically it is still in game, just invisible and no collision, then you can instead have your time manager only store the time and a reference to that actor to turn it back "on" so to speak.

lone garnet
#

ah right I get you. I think Im gonna try and have like stages of growth so you can also plant trees maybe and check on them

#

adds some variety to the trees too

#

currently I destroy the tree after its been cut, then replace it with a stump. From that stump I can have stages of growth until its fully regrown. The values of which I can find in the struct with the priority list and time manager

proud hull
#

If you want all your objects to always spawn in the exact same spot as where they were harvested, then going with hiding them seems like the best option. An integer or enum to change what stage of growth where one of the stages would be "harvested".

lone garnet
#

I can spawn them at the stump location right?

proud hull
#

Sure, you can spawn them wherever you want. If you have a placeholder like that, then that is where you would grab the necessary info.

#

So time manager would take in the stump actor as a reference when a tree is harvested.

lone garnet
#

Right that sounds like what Im going for

proud hull
#

So you could get away with a much simpler map then. Float to Actor, or even more specifically Float to Stump if you want. Personally, I would go for Float to Actor, so it can handle other respawnables too. Then you do a series of casts to figure out specifically what type of object it is.

lone garnet
#

Yeh that sounds good

orchid garden
#

or just save the object references to a stuct array where you can set what type they are.

proud hull
#

Float to Struct would definitely be ideal, like I mentioned earlier. It can handle so much more since the struct can store whatever info you need.

orchid garden
#

i.e. i have a struct that contains a item row name and the item fuel type, the fuel type is just a enum selection :

📎 unknown.png
#

that way i can check if the item is the proper fuel for the container so it can be added in.

#

or if it can consume it.

proud hull
#

@orchid garden I assume you also do harvesting and respawning of those harvestable resources, how do you go about managing the respawn times of all the harvestables?

orchid garden
#

haven't gotten to the harvesting setup yet, but was thinking along the same lines for the respawning of the trees / rocks, thinking maybe do it in the game state.

#

could probably even get away with doing it inside the level blueprint, but gamestate would work for map switching too.

proud hull
#

Yeah, game state for sure would be a good place.

lone garnet
#

I'll probably do a separate actor to manage respawning for each level. Saving is a lot easier per level that way I think. If you have separate levels that is

proud hull
#

I wouldn't really go for inside level blueprint before I just do it in an empty actor that is added to the level.

lone garnet
#

yeh thats what i mean

proud hull
#

Referencing a level blueprint from other things is a pain.

orchid garden
#

the reason why i'd do it via the gamestate or level blueprint is so its persistent across the level with no worries about the actor being in a 'inactive' or 'unloaded' state.

lone garnet
#

Ill spawn the time manager in each level on begin play then access it that way

#

but spawn it probably through game state or player controller

orchid garden
#

nothing like having your respawn manager in a 'unloaded' state and nothing respawning 😉

proud hull
#

lol, right

lone garnet
#

If I do it per level then I can save Trees or replenishables per level and then my priority list doesn't get messed up.

cold raft
#

I have BP_Animals, BP_Farm, BP_Foliage, BP_NPC actors the control spawning which I instantiate in my player character - easy to get to. I dont think it is ideal, but had problems with them in the Game_Instance as they needed a physical map to spawn into

lone garnet
#

in theory

orchid garden
#

i supose i could always make a custom skyshphere and use it for management ... hrm... there's a thought....

lone garnet
#

Well what If when I go into the level after a while, instead of nothing being respawned because it was unloaded, I check how much time has gone by since I left?

#

I just think it might be unneccessary trying to respawn actors that Are in a dungeon or something Im not close to but have plundered in the past

proud hull
cold raft
#

I like the idea of being able to harvest any tree placed by foilage - RainyDay dev did a tute on doing that, though havent tried it yet. https://www.youtube.com/watch?v=amUo82dcDKw&t=11s

YouTube
RainyGames Dev Diary
How to make every tree in your game interactable | UE4 Tutorial

Follow SunnySide's development below:Discord: https://invite.gg/SunnySideGamejolt: https://gamejolt.com/games/SunnySide/...Instagram: https://www.instagram.com/rainygamesuk

Just a quick note to this tutorial: Thanks to all the lovely people on Reddit, I've come up with an upgrade to this system that uses Instanced Foliage instead of an array of...

▶ Play video
lone garnet
#

4.26 made actors paintable

proud hull
lone garnet
#

yeh i thought that would be the case

proud hull
#

No point managing respawns in a dungeon when you aren't there like you said. You can have it go through all in queue when it is loaded again. As long as you are properly saving your time manager to persist between loading levels.

lone garnet
#

yeh sounds right

proud hull
#

Just don't have any visible respawnables near where the player loads in, so they don't suddenly see things pop-up, unless you don't care about that.

lone garnet
#

I guess thats what loading screens are for XD

proud hull
#

true

lone garnet
#

or even a slow fade if you really want to push it

orchid garden
#

thanks for sharing i'll check out it and the updated one later 🙂

clever steppe
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hello hello, i need to check a player's variable through the level blueprint to affect switches in a level, but it's not efficient to do it through the event tick. apparently i also can't cast to the level blueprint, but is there any way to only check this player variable when it's actually changed? i can do a custom event for it, easy

cold raft
clever steppe
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how would i do that, specifically?

elder hornet
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Can anyone suggest the best way to compare two variables using the same structure, without having to compare each pin

proud hull
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For structs, I honestly think you do have to compare each variable in the struct, could be wrong though.

elder hornet
clever steppe
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do i do this from the level blueprint?

proud hull
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Per Rick was better, hehe

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made me think of rick and morty, haha

elder hornet
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Where you do it all depends on what is causing the player variable to change

elder hornet
proud hull
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@clever steppe how much of your logic for dealing with the switches is in your level blueprint?

clever steppe
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the actors themselves have the logic to activate and deactivate, but the level blueprint actually checks the player variable to determine whether the actors are activated

wooden flint
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hey! how do I load a saved game when I click the play button? this is what i currently have set up for it but I cant figure it out.

📎 save.PNG
clever steppe
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i have a door, it has the logic to open or close in events, but the level blueprint refers to those events depending on the player variable

elder hornet
proud hull
clever steppe
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an integer in my player character@elder hornet

elder hornet
proud hull
wooden flint
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@proud hull what does that mean?

clever steppe
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it's a die with six sides. when the player is still and clicks the left mouse button, it sets the "active side" integer

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whichever number is up

proud hull