Are you running as client or listen server?
#blueprint
dawn gazelle
pale orbit
Are you running as client or listen server?
The event or the game? The event i tried client,multicast,not replicated, on server// and the game is running on standalone so i think listen
dawn gazelle
This.. what do you have this set to?
pale orbit
and creating a session and finding for
dawn gazelle
Ok, that means you can't rely on the has authority switch as server is going to be one of the players.
pale orbit
Ok, that means you can't rely on the has authority switch as server is going to ...
so what should i change it up?
Calling that on GameMode,GameState dont work it runs as server
where can i call that as client? gameinstance? playercontroller?
playerstate maybe?
near dust
Is there a way to cull actors from particular cameras? I'd like a multiplayer game where players can grab a camera that can see hidden stuff, and ideally be able to change the visibility of something on the fly, choosing which cameras, or at least which type of cameras it's visible to at any point
kindred pier
For whatever reason even though the boolean is set to true, it keeps going to the false branch, am I missing something here?
dawn gazelle
so what should i change it up?
In the TeamOnRep function, On the HasAuthority branch, on the authority do a IsDedicatedServer branch, and if false, then connect up to your existing logic.
steel zealot
Hey all. I'm trying to figure out how to implement an 'aimed jump' with the mouse cursor.
Essentially, a player would hold the jump button down, aim at a location and then release, and the player character would jump to that location.
I'm not finding any examples online or an effective way to do this.
Any thoughts?
near dust
I wouldn't know how to do it, but they did something similar in AvP 2010 for the predator,
steel zealot
that was exactly our reference
tulip mason
For whatever reason even though the boolean is set to true, it keeps going to th...
Umm..... You have get all actors on tick??????
All I know is it's virtually impossible to follow.
trim pollen
hi, I'm brand new to Unreal. I'm diving in and try to edit a material blueprint. Is there a node that will return the position of each vertex? Similar to how VertexColor returns the color for each vertex. There should be a value for each vertex (instead of one position for the entire mesh).
kindred pier
Umm..... You have get all actors on tick??????
All I know is it's virtually imp...
I figured it out, I misunderstood something about how the variable was initialized
and yeah messy, but it works so far
I can polish later
knotty quail
I imagine this is a really simple issue, but I'm having a brain fart:
How do I store a value that is potentially changing every tick?
I am taking the first index in an array and trying to store it in a var called firstIndex. In the event that the array becomes empty, I want to keep the value in firstIndex and continue using it; however, the way it is currently set up it changes the stored value
tepid forum
set index 0 = aDefaultValue
sorry aDefaultValue = index 0
if index 0 == null set index 0 = aDefaultValue
knotty quail
I will try that, I just encountered something strange
So it sets the firstIndex localVar AFTER it checks if the array has more >= 0, but once the array is cleared it does not retain the localVar firstIndex's value
It doesn't make any sense to me, it shouldn't be getting to that piece of code because of the branch
knotty quail
0 is the first entry in an array
tepid forum
if its > 0
knotty quail
if index 0 == null set index 0 = aDefaultValue
I'm not trying to modify the array after it's empty, but just store the value that used to be in the index 0 spot so I can use it with the rest of the code
tepid forum
I can't see a problem
it seems like you check if the array has elements and sets *firstindex * to be the value of index 0
so as long as fist index value is not changed you should be able to "Set Array Elem" index 0 = firstIndex
at a later point
trim pollen
why can't I see this node? https://docs.unrealengine.com/4.27/en-US/BlueprintAPI/MeshDescription/GetVertexPosition/ does it not exist if it's a material?
knotty quail
do you have context sensitive on? @trim pollen
bright frigate
I have a door that has collisions on either side (for overlap events to set booleans for the door) and it works when in a normal area, but when in its actual place, it opens into an alleyway that has a TriggerVolume for audio, the door stops responding to linetraces. Any idea why there is this conflict between the door and the trigger volume?
trim pollen
do you have context sensitive on? <@!228325391222308875>
i'm googling but not seeing where I set this. I have everything default.
where is context sensitive set?
shouldn't it be in this menu?
tepid forum
your in the material editor
that vertex node is for procedural meshes
in blueprint
blueprint has separate nodes from material editor which is shader nodes
trim pollen
thank you
bright frigate
I have a door that has collisions on either side (for overlap events to set bool...
I solved it. The solution for me was to set custom collision preset and set it to pawn object type
Now my linetrace is working on the door
light token
Hello. I've got a problem. I want to check if the text is an empty string and disable the button if it is. Unfortunatly this isn't working and I can't see why. Could anybody help me?
gentle urchin
What event is checking this
gentle urchin
There's an event "on text changed" or something which you can use for this
gentle urchin
.... again
gentle urchin
light token
Thanks man!
@gentle urchin How do you know you should use Text as an Input on the event?
*output
gentle urchin
I didnt really use anything, it appears by itself when i setup the event
It makes sense tho. It's infinetly more usefull to append the current text along with the text changed and text commited node.
light token
It doesn't appear in my editor. But it worked when I pulled the event node pin.
gentle urchin
Sounds like you've got the wrong one
Is this an editable text box ?
Or text Box
when its selected in the designer (or as a variable) you can find the dispatchers in the details panel
gentle urchin
It is avaliable there aswell
light token
Hmm but the Is empty node isn't working
I also check on DoesSaveGameExist
that one does disable the button but the empty text isn't
amber dragon
is it possible to play a level sequence inside an actor blueprint?
light token
Sorry I was afk for 15 minutes. Had somebody at the door.
Will check about the inversion in 15 minutes.
Ok I made an other stupid mistake
It's working now
Thanks Squize
native willow
is it possible to play a level sequence inside an actor blueprint?
level sequence is bound to level
amber dragon
level sequence is bound to level
I was trying to put a level sequence animation door inside an actor, so I thought in that way I could duplicate many times this system. Anyway, thanks for the answer!
eternal reef
You could consider using things like timelines for just doors, avoids having a lot of sequences in your level
lunar fog
I tried doing this but it doesn't seem to work. Could somebody please do a "how to for dummies" on how to access the values from a runtime float curve please?
opal ivy
So, has anyone doing the Blueprint Ninja Challenge gotten the Ninja badge? Or is only the Journeyman one available?
Oh, I took the wrong fundamentals course. 🤣
kindred pier
I am having trouble with getting npc characters to move in a packaged game, for whatever reason it works fine in the editor but in game they do not move not all, and I can't figure out why, it's just a simple character pawn that moves to a specified point on the map, and the navmesh is in place around the proper area
I made sure to fully build the level, it has no errors or warnings either
this is the character's event graph
drifting rapids
@gentle urchin my map was corrupted, I remade the entire level and it works now
gentle urchin
Damn, that's unfortunate. Hope that doesn't happen very often 😕
maiden wadi
@lunar fogThe link you mentioned has a how to, to access a curve's values.
lunar fog
<@!223189049878249472>The link you mentioned has a how to, to access a curve's v...
I don't know why, but for the life of me, I can't figure out how to get access to a "runtime float curve"
it's a special struct with no "get" function
gentle urchin
Cant use it in bp
fallen glade
Can you change area class in blueprint at runtime?
fallen glade
oh the nav modifier component sets it for everything in the blueprint though :/ @gentle urchin 😖 why unreal why
gentle urchin
Hmm... how about the volume tho?
fallen glade
Hmm... how about the volume tho?
cannot be added to a blueprint that
gentle urchin
Soo child actor with the nav modifier component ?
And a collision volume
Or a new component with this 😅
fallen glade
Or a new component with this 😅
What do you mean by that?
odd ember
child actor recommendations 👀
gentle urchin
child actor recommendations 👀
You like , or you dont ? 😅
odd ember
Can you change area class in blueprint at runtime?
What is it you want to do?
like, your intent
fallen glade
I'm trying to create a blueprint that sets randomized nav mesh obstacles of different classes dynamically @odd ember
right now I can have only one class though
odd ember
and you're not using dynamic navmesh?
because that should handle your issues. you can spawn different actors with different classes and the navmesh will accommodate
fallen glade
because that should handle your issues. you can spawn different actors with diff...
Yes I just didn't want to do it by hand for every corner, I think I'll go with the child thing @gentle urchin pointed me to
odd ember
... you don't need to do anything by hand?
the navmesh will handle everything automatically and you can assign random values for a spawned actor
no nav modifiers etc. necessary
icy pilot
How would someone mark this BP function as thread-safe ?
earnest tangle
You can't do threading in BP's so I'm not sure why you'd need to do that
Not even sure if it's possible for them to be thread safe
spark steppe
i think that only works in animation blueprints
vast crow
Any way to go to concrete usage from reference viewer? Currently, it's a lot of tedious work of opening the asset and searching manually
icy pilot
It's just that i'm getting this warning here when i use it in my AnimBP.
I would make this method anyways in C++ where i can specify the flag, but i was wondering if you can do that in BP
tepid forum
Can you do what it says?
Disable threaded update in “Has only one one handed weapon equipped”
icy pilot
Disable threaded update in “Has only one one handed weapon equipped”
Not quite sure where this setting would be
spark steppe
do you even use multi threaded animation updates for that AnimBP?
tepid forum
Not sure what that function does, but does it use some kind of different update or co-routine inside it?
spark steppe
otherwise you can turn off the warnings (or just ignore them)
icy pilot
Not sure what that function does, but does it use some kind of different update ...
It's basically just a collection of some getters with boolean logic
icy pilot
do you even use multi threaded animation updates for that AnimBP?
Isn't that the default ?
spark steppe
no idea, it's in the class settings or class defaults
icy pilot
Yeah, it's on by default
spark steppe
however, any BP access is usually suboptimal
tepid forum
Strange I don’t believe I’ve seen that warming before
But I rarely do complex work in animator
icy pilot
This is basically the whole method
All of those called methods are also marked as BlueprintThreadSafe in C++
tepid forum
Yeah seems simple, just ignore warning ⚠️ 🤷♂️
spark steppe
no, the warning is there for a reason
icy pilot
I'm getting rid of this warning once i'm writing the method in C++ anyways, but guess it's good to know that BP methods are kinda limited here
left fulcrum
Any ideas on how to change the player character while in game, like press a button and your character would despawn and create a whole new character. Ive seen a lot of stuff about just changing the skeletal mesh but that doesnt quite work for what I wanted, I wanted to change the player character entirely.
orchid garden
as long as the character is using the same skeleton changing the skeletal mesh is the best method honestly.
left fulcrum
I know but I wanted to have different types of characters, like some bipedal some not so its drastically different skeletons on the characters
tepid forum
Set up character class bp’s
Destroy the old one and spawn instance of new one
This is oversimplified version of what will happen
orchid garden
can you give a example of what your trying to do? i.e. like is this for something like player is human, grabs stone, gets transformed into slug man... lol... or is it just a character selection screen where your selecting which character your wanting?
left fulcrum
Yeah ive set up a character select screen (except for spawning the character so far) where the player can pick but some are human, some are animals on four legs, so I cant just change the mesh. Ive created the different character BPs but I dont know how to actually spawn in the new character, I was going to setup spawn points for when you do spawn in but switching the character BPs while in game has been a challenge
orchid garden
for the character selection you'd just be spawning and destroying actors till the player selects the one they want to use, and then you'd set that to the players active character.
simplest method.... player selects character .... stores data on player... loads map ... reads what character the player selected ... spawns that character ... possesses character.
fair sun
Can you subtract rotators in Blueprints?
FRotator A;
FRotator B;
FRotator C = A-B;
if there's no node for it, you probably can achieve the same result by using break rotator and subtracting the individual components and then making a new rotator from those
(or just make your own node for it)
maiden wadi
@fair sun Delta is what you're looking for I believe.
It normalizes it, but that's not usually an issue with rotators.
odd ember
This is basically the whole method
this all happens because the animgraph runs on a separate thread from the game thread. so when you're calling stuff from the game thread (e.g. any actor reference) in the animgraph you get issues like these
I think you can get around it by using the animBP part to set variables instead
dusty tree
I found a tutorial to make a camera lag, but i want the character to always be vertically centered, and i want the camera to only have an horizontal padding how can it be done?
odd ember
is this third person?
odd ember
if you have a spring arm component, all those options are exposed on it
no need for additional logic
coarse shard
Hi, I'm new to unreal engine and I'm trying to make small games with blueprints in multiplayer, I would like to be able to make a client have control over an actor's mesh transform and have the position sent to the server.
Is there any way to replicate transform from Client to Server with blueprints?
dusty tree
if you have a spring arm component, all those options are exposed on it
Thanks
But how to make the lag only horizontal and not vertical?
odd ember
Is there any way to replicate transform from Client to Server with blueprints?
best ask in #multiplayer
coarse shard
Thank you
limber tinsel
i have this interact key in player_bp, when i interact with drawer it opens and close, but i want to put something in drawer and want player to pick up, how can i make player recognize that something is in that drawer and that can be picked up instead of closing drawer
Interact function in player bp
open/close in drawer bp
atomic salmon
@limber tinselthere are various ways to handle this, but typically you will use contextual commands. So if the player is near the drawer and the drawer is closed, you show the contextual command to be E = open drawer.
If the player presses E and the drawer opens, showing some content the player can pick up, your contextual commands become E = close drawer, P = pick up object.
limber tinsel
yea thats nice idea! but is it possible to pick up something with e as well
atomic salmon
Exactly. You can even use mouse hotspots, one on the drawer handle to open/close it and one on the object that can be picked up.
high ocean
Can't figure this one out:
I need to sort actors in an array accoriding to their HP value (sometimes more than one may have the same value, so map won't work). Made a quick float sort function and I can't figure out how to get them. Any help pls?
limber tinsel
Exactly. You can even use mouse hotspots, one on the drawer handle to open/close...
ty i just looked up mouse hotspots might work, will try that
atomic salmon
@limber tinselyou don't need to reinvent anything, just pick an interaction system you like from one of your favorite games and implement something similar to it. Unless you are inventing a whole new interaction paradigm of course.
limber tinsel
<@!345838779447377923>you don't need to reinvent anything, just pick an interact...
Well m too dumb to invent anything, Just learnt unreal Bp Week ago so just looking for a simple way.
atomic salmon
@high ocean assuming the array out of your sort function is already sorted, I would use a traditional index based For Loop, from 0 to LAST INDEX.
@limber tinselif you are learning the best solution is the easiest one, you can always make it more complicated later on.
orchid star
Can't figure this one out:
I need to sort actors in an array accoriding to their...
you can use string array
and make it mimic map
with string formattings
11x15.0
12x14.2
etc.
then split with x
high ocean
@orchid staromfg... lemme think... wtf 😮
orchid star
and you got the values
its harder to do but once you get used to it its fun using it this way
high ocean
woah i need to wrap my head around this one as this has the potential to change some of the stuff I find bug-prone
orchid star
or you can use maps
but not with floats
but strings
enumxstring
and if there is a duplicate
you can make it with string as well
high ocean
there will be duplicates, since the hp values of the actors will be the same at the beginning. Otherwise I would've used map and be done with it 2hrs ago 😐
Trying to understand this string method as it seems really usefull for a bunch of many other things...
orchid star
I used to do this string, because I had to use Playfab
and I didnt want to deal with JSON that much so I made the arrays like that
it worked just fin
I dont think its the best way tho
it might make it hard to read for someother people
high ocean
well, in most cases, u can't read anything from structs unless you print out and check, so that would only make my life easier, all my vars are nested and nested again
so... need to try and understand how this could work...
orchid star
why cant you read from struct ?
high ocean
when frame-breaking, structs return "variable out of scope" 😐
when frame-breaking, structs return "variable out of scope" 😐
high ocean
so when I can't figure out from anywhere else, I just plugin a print just to see the fkin value - annoying
orchid star
you can see the struct variables info
high ocean
but you can set it as instance editable
orly? Need to check that out while debugging
although if I forget one like that which isn't supposed to be - ouch 😛
odd ember
if you right click on the pin and say "watch this value" you should be able to see it, regardless of scope
high ocean
if you right click on the pin and say "watch this value" you should be able to s...
nnnope 😄
orchid star
I wish it was
high ocean
it isn't really, tried it many times, only works for un-nested vars
odd ember
you should at least be able to view it in the blueprint debugger pane
high ocean
so this method you were saying about would mean that I assign strings for each actor, then append the numbers to them? Something like that? Then sort the array... Uhm... 🤦♂️
gentle urchin
How about using min of float array?
stash their values in a float array -> pull them back out with sorted indexes
orchid star
How about using min of float array?
this
dude
it feels like Im an idiot
didnt know it existed
high ocean
@gentle urchinThat's how I sorted the float array. But now, there's no way for me to get the indices of the actors corresponding to those values 🤦♂️
gentle urchin
Yes there is 😛
Save the index, which corresponds to the original array
So.. Original array -> store in float array 1:1
Float Array -> Save indexes in a temp integer array -> Remove said index from float array
Now your array of ints corresponds to the sorting of the original array
which you can then use in a for each loop to generate the outgoing array
Disclaimer: Untested.
high ocean
@gentle urchin🤔 I'll give it a try, tell u if it worked. I'm not sure how sett array elem index 3 for instance will behave when added first - will it just fill up 0, 1 & 2 with "none"?
that's why I haven't even considered set array elem, I assumed it will just add it to index 0 despite me providing one
gentle urchin
We know there exists data for every index
so long as we allow the array to resize for our biggest index, it's aall good
Size to Fit handles that
high ocean
🤷♂️ I'll try it out and come back. Been 3 hrs since I'm bashing my head against this ... this silly, crappy, simple thing really 😐
odd ember
what was the original query
dawn gazelle
I think removing the index of the float array is what is messing it up as you would be changing the length of the array constantly. What you probably need to do is set the value of that particular index to a known high value, and check if the min value is == that number, and that's when you break out of the loop.
gentle urchin
Yeah i think you're right
Not sure why i reinvent the wheel
i made a sorting function a while ago for another project.....
odd ember
wouldn't it be smarter to just use any conventional sorting algorithm
gentle urchin
^
high ocean
@gentle urchinYea, nope, the while loop goes endlessly (I never use those cos apparently idk how to) and endlessly adds the same index: 0
gentle urchin
<@!231467939734355969>Yea, nope, the while loop goes endlessly (I never use thos...
I just realized how dumb I was in this proposal, along with Datura's pointer.
high ocean
So it's broken in more than one way
gentle urchin
thats the issue
high ocean
afaik, the condition to break a while loop must exist inside it - right?
gentle urchin
the index relation breaks as soon as i remove from that index
high ocean
how can something this "simple" be so fkin complicated - wtf?! grrrr
I'm almost certain that in cpp it's like 3 lines of code.
gentle urchin
earnest tangle
Sorting is one of the big downsides with BPs sadly
you can sort pretty easily in C++ :P
odd ember
you could try your hand at exposing the sort function that exists by default in cpp
earnest tangle
depending on what your array contains it's just a matter of saying Foo.Sort(), otherwise you may need to define the < operator for the contents
but it's pretty straightforward either way
odd ember
can generics be exposed to BP? I've never tried
spark steppe
https://answers.unrealengine.com/questions/961163/how-to-sort-tarray-in-c.html there's some discussion about it, so guess you'll find a working solution 😉
high ocean
Never wrote a single line of code by myself, so i'll probably fuck up more than I can afford timewise
earnest tangle
@odd ember nope :(
spark steppe
you could wrap it with an blueprint function 😄
high ocean
I know that, but the project contains no code, it's bp only
odd ember
<@!224571781862653952> nope :(
that's what I thought... so perhaps the best way in BP is doing a... macro? idk
earnest tangle
it's possible via some kinda magic of CustomThunk
but never tried those and it looks complicated lol
earnest tangle
Yeah
high ocean
macros allow for wildcards by default
But no local vars 😐
odd ember
on a side note not having generics in BP is one of my biggest pet peeves
odd ember
But no local vars 😐
you can have local vars
earnest tangle
Easiest way by far is to just don't bother to attempt to make it a generic function :P
You can have local ints and bools and some basic stuff like that in macros
odd ember
look at the standard macros, plenty of local vars to go around
high ocean
Oh?! Then why haven't I made more macros instead of functions... God damn it 😐
earnest tangle
but not anything more complicated than those
odd ember
because they're a bit sketchy
high ocean
look at the standard macros, plenty of local vars to go around
U right 😔
odd ember
but not anything more complicated than those
wildcard local var?
earnest tangle
Does it actually allow those? 🤔
spark steppe
i think so
earnest tangle
Yeah I seem to recall that if you try to create a local it's just two or three choices for the type
spark steppe
look at for each reversed macro
earnest tangle
because you can't create a variable for the macro, the local variable is a node in macros
spark steppe
well, might just be a wildcard parameter
high ocean
well, might just be a wildcard parameter
and get fed whatever data type? wouldn't that break? like badly?
spark steppe
no, TArray<whatever>
odd ember
I tried to make a PQueue macro once and it blew up in my face lol
high ocean
@gentle urchinwhat works?
odd ember
it
gentle urchin
high ocean
but...how?
gentle urchin
it indeed
high ocean
oh..
gentle urchin
Datura pointed me at it really
removing from the float array made the indexes unsynchronized so to say
so by removing from temp array at the same time, while also adding at the sorted array along the way, made them stay synchronized
high ocean
so by removing from temp array at the same time, while also adding at the sorted...
I'll try it asap... 🙂
high ocean
@gentle urchinIT Does!!! Jesus, GJ! Thanks alot for the help man, amazing! 🥳
And now, after you figured it out, I just realized how much sense this makes 🤦♂️ God I hate my own brain...
fast escarp
Heya, wondering if I could get some clarification. I'm watching a tutorial video and in it he pulls out these vec*scalar blueprint functions shown here
But here I am on UE5 and I can only seem to find multiply
gentle urchin
Its the same
new nodes are dynamic
input float as secondary and it 'becomes' vec * float
fast escarp
ah, so I have to make a new float node every time I want to multiply by a scalar?
gentle urchin
Not sure if you can right click the pin directly
havnt used ue5 that much
just know they're dynamic
fast escarp
ah, you can totally right click the pin and change it's type
gentle urchin
Sweet.
fast escarp
Thanks a bunch ❤️
odd ember
yea the new nodes are a bit of a PITA like that
I understand the reason for them assembling it into one node from a tech perspective, but from a user perspective they should still have listed the options in the menu
fast escarp
yeah, it seems more convenient the old way lol
gentle urchin
On another side, isn't it sort of more userfriendly from a search perspective that there's fewer nodes to pick from ?
When searching for a "multiply" node, all sorts of them used to show up
Now its just drop in the one and only, and connect the pins you want to it
gentle urchin
Shortcuts
odd ember
you cannot shortcut it because you still have to modify the node
odd ember
in many cases you don't have a connection to start from
e.g. when writing in a number
so you have to either make a literal float (which is another menu lookup's worth of clicks) or manually switch the node to accept your type of number
gentle urchin
Tru
odd ember
so it is inefficient compared to the old way
gentle urchin
Presonally i still prefer it this way, but surely it can produce more clicks, which is not something to strive for
Hmm
odd ember
I personally prefer a robust click economy where click inflation doesn't happen often, and when it does, it is reduced quickly
gentle urchin
it's even worse than i thought (havnt used it to any extent)
I expected it to remain wildcarded
My assumption was wrong
ripe rose
btw what're the benefits to making something inherit from pawn rather than character? i'm trying to decide if i want my AI enemies to be pawns or characters and i'm not sure if i need the features that come with a character
are there performance benefits from not inheriting from character? or is it mostly just a neatness thing?
gentle urchin
Pawns dont have the CMC , so surely they're easier in many ways
If you need to defy gravity to any extent pawn would be probably be better choise. If you want regular walking and alot of basic stuff pre-handled, character is way to go. Set up for MP aswell is just a benefit as i see it
ripe rose
MP?
high ocean
Is there any way of marking certain function inputs to have the compiler bark when nothing is connected? I searched for 30 mins for an unconnected pin 😭
gentle urchin
multiplayer
gentle urchin
it has built in replication , movement prediction stuff and whatnot
ripe rose
ah
gentle urchin
I'm not familiar with how far it extends, but its like 15k lines of c++ code, so it's a decent chunk of work done there for sure
Not that lines of code is a metric for awesome, but..
ripe rose
hm not sure to what extent pawn and character differ on a dedicated server
but that's a good place to test and figure out what i want to do
thanks
high ocean
@ripe roseJust make sure you don't need the movement component in all its glory or proper access to animation blueprints or you're gonna have some pretty nasty surprises. Took me back a couple of days last year - wanted to be "performant" as well... Learned my lesson. You'd wonder at what's not exposed to blueprints cough looks at movement component & proper animbp support.
ripe rose
<@!131685664566542337>Just make sure you don't need the movement component in al...
ic thanks for the advice
odd ember
you used pitch, not yaw
clever helm
nothing fixed, head keeps shaking
odd ember
I use the lookat and that works for me personally
clever helm
want him to look directly at me
desert relic
guys
odd ember
but you may have more luck with asking in #animation
desert relic
can anyone help me with a bug
odd ember
clever helm
doesnt fix it
head doesnt rotate at all
wait
when i use the headbone it rotates in the z axis
when i use the vb it doesnt rotate
and it doesnt look at the rotation at all
odd ember
what is vb
odd ember
no idea what that is
arguably if you use something virtual it's not going to work because it's not the right bone
kindred pier
For whatever reason my npcs aren't able to navigate once in game, but are perfectly capable in the editor, I tried editing project settings regarding navigation mesh as well, I'm stumped on why it would work in editor but not in game
high ocean
@kindred pierI can't remember what it was (but something silly/buggy on the engine-side). Had a similar problem. Just delete the damned thing and don't rebuild your level. It think that was it - can't say for sure, I can't remember for the life of me.
You just delete the navmesh, undo so it gets back & builds & don't do full rebuild when cooking - if it's an option
heavy ibex
I have a C++ player controller and a blueprint child of it. If I add a UE_LOG to my C++ version's BeginPlay, I see the output. However my BP child doesn't seem to fire the BeginPlay at all. Other functions in the BP fire off just fine (ex: tick). I can't seem to come up with a reason why this might be, anyone have any ideas?
dawn gazelle
I have a C++ player controller and a blueprint child of it. If I add a `UE_LOG` ...
You need a call to the parent begin play.
native willow
^
heavy ibex
Wait, that's backwards isn't it? The parent of the BP is the C++
And the C++ is working just fine. It's the BP's beginplay that isn't firing
native willow
the BP's BeginPlay is fired in the AActor's BeginPlay so you probably do not call the Super::BeginPlay
dawn gazelle
Right, you need to call the C++ BeginPlay because you're overriding it.
heavy ibex
... Unless my understanding is completely warped, I should be able to use the BeginPlay in the child BP without calling the parent BeginPlay. It would completely override the parent function by not calling the super
(not to mention adding the call to the parent does nothing)
native willow
heavy ibex
Ah, yeah there it is.
native willow
Super::BeginPlay() < - this is where the bp's BeginPlay is fired, bp class is not a real c++ class and unreal refection calls the begin play on bp manually so not all of the heritance rules apply to bps
if it is not working, move to #cpp and show the code
heavy ibex
Worked perfectly, thanks!
dawn gazelle
Interesting tidbit of knowledge. Thanks.
native willow
also always call the Super::BeginPlay() because you will have some weird issues like not being able to delete the actor
heavy ibex
Yeah, just missed calling it when I added the function
fiery swallow
Why are you rotating the head like this?
clever helm
how do i do it?
fiery swallow
Aim offset, and I believe AI's have some node that allows them to focus an actor
clever helm
problem is i dont have aimoffset
fiery swallow
make one in the enditor
clever helm
tell me about the focus on the actor node
fiery swallow
won't do you any good if you got no aim offset I'm pretty sure
But you can literally make one. Just get the idle animation
clever helm
:) no idle animation
fiery swallow
so it's just constantly moving in every single animation?
clever helm
?
clever helm
the actor head must supposedly move in every single tick but the big problem is it doesnt
clever helm
https://cdn.discordapp.com/attachments/221798862938046464/898297992627507290/Scr...
yes
when i import an animation the mesh becomes really small
fiery swallow
so then are you planning to "animate" the whole actor by changing it's bones?
clever helm
no no no
i am planning to make simple animations
but the head aimoffset i am planning to make it procedural
like every other animation i've done recently
but it for some reason doesnt work
fiery swallow
never seen anyone do it that way before, ever. but I guess anything's possible. You just need to make sure you are calculating properly
What is your current logic for determining where the head should be?
"Head Look At" vector
native willow
the actor head must supposedly move in every single tick but the big problem is ...
earlier you said smth about vb, you need to rotate the actual bone not the vb
odd ember
I mean I gave him that solution
clever helm
ok
odd ember
this is technically #animation talk anyways
clever helm
nobody responded to me there
native willow
I mean I gave him that solution
sometimes you gotta... repeat
odd ember
nobody responded to me there
you can't expect people to be a hotline for you 24/7
clever helm
logic for getting the look at target rotation
clever helm
you can't expect people to be a hotline for you 24/7
i didnt
i just asked and waited
fiery swallow
It's not really animation talk if he has to calculate the movement of where the head goes, he's already got the animation logic set up
odd ember
but you're back here
clever helm
and someone responded to me here so i discussed it with him
clever helm
It's not really animation talk if he has to calculate the movement of where the ...
thank you
fiery swallow
it is now a matter of helping him figure out the appropriate calculations to rotate the bone
clever helm
thank you again
odd ember
as far as I am concerned that's a simple value you set, not so much calculate. even if it was more IK like I'd still put that in #animation
native willow
it is now a matter of helping him figure out the appropriate calculations to rot...
its hard to assume what does he want if everything he says is "it doesn't work"
clever helm
bro what is it with you and #animation
odd ember
e.g. what are you looking at -> set location for use in animgraph
native willow
bro what is it with you and <#221798806713401345>
categorization
clever helm
from what i know it got a bit of blueprints and animations so i dont understand
odd ember
animgraph isn't blueprints
odd ember
that's the difference
much in the same way material graph isn't blueprints either
and really I've tried to help you both here and by redirecting you to people who might be able to help you more in a channel that's more suited towards what you are doing
clever helm
🤓
odd ember
so I don't know why you are complaining
native willow
okay, can we start over? because I got completely lost, @clever helm whats the problem?
native willow
I need a proper explanation if you want me to help you
clever helm
ok
native willow
describe the problem
clever helm
do we continue here?
alright so the head must rotate towards the player, which it does not
it doesnt rotate sideways but i did discover that when jumping up and down the head rotates with me
so its working but not really that much
native willow
what have you tried already?
clever helm
and when moving sideways the head get shakey
clever helm
what have you tried already?
the solution they provided for me and other stuff i found on google
native willow
i mean, what do you have atm
clever helm
this is my current setup atm
and somone has sent me a video in #animation so i am going to check it first
native willow
and now show the output
clever helm
native willow
you said you have registered some movement, could you record a video?
native willow
what the...?
clever helm
had some addition and substracts here and just deleted them all and attached it to this
if needed i will add them
just for speed tbh
icy dragon
That setup is so funny wtf
native willow
you said you have registered some movement, could you record a video?
@clever helm
kindred pier
For whatever reason my npcs aren't able to navigate once in game, but are perfec...
anyone else have any thoughts on this, I've been searching for a while and still stumped
clever helm
some up and down movements
clever helm
anyone else have any thoughts on this, I've been searching for a while and still...
i might help you
native willow
some up and down movements
I dont know some up and down movements are so please record a video
clever helm
ok wait
icy dragon
anyone else have any thoughts on this, I've been searching for a while and still...
Perhaps try rebuilding everything in the level?
kindred pier
I've done this a few times and I've even made fresh nav mesh too to no avail
atomic salmon
@kindred piermake a debug build, then you have access to the console, Through the console you can check the navmesh. Maybe you can spot the issue in this way.
clever helm
I dont know some up and down movements are so please record a video
i somehow fixed it
atleast the head is moving
kindred pier
thanks I will check that out 👌
clever helm
native willow
it looks like you want to negate the rotation
clever helm
yeah i tried that but for some reason the xyz in the vector isnt translated to world space if i can get it correctly
odd ember
did you check that the anim node reflects the correct space?
trim matrix
Hi all, need some help please.
Hi Guys need some help in Blueprint how would i get the speed of a actor in the world the is moving along a spline
I have a track BP and then another for the Train. I need to get the velocity of the train to be able to rotate the train wheels at the right rate ??
odd ember
isn't there a node called GetTimeAlongSpline
clever helm
forget it
i fixed it
it happened because i was dumb enough to not uncheck local space in the look up and at axis
icy dragon
I have a track BP and then another for the Train. I need to get the velocity of ...
Maybe this is what you're looking for.
odd ember
welp
trim matrix
I've tried that this is my set up
native willow
v = d / t
trim matrix
so track is one BP and the train moves along the spline using this code
is it because I'm setting location of the Bp on the spline over a timeline so the Train BP according to the engine isn't really moving ??
any ideas ??
icy dragon
Well, Set Actor Location is practically placing actor to another place.
trim matrix
that's what i'm thinking i'm setting the location rather then the actor actually moving if that makes sense
so rightly so the actor would be seen as not moving at all
icy dragon
that's what i'm thinking i'm setting the location rather then the actor actually...
Get Velocity actually only works with physical movements or Movement Component
trim matrix
damn any ideas how I could do it different
odd ember
do trains actually turn their wheels when the run on a track?
trim matrix
all I need really from this is a way to have the wheels rotate at the right rate for the amount the train is moving. Could i add a Movement Component but not use the movement from it maybe and see if velocity would then be given ?
what you mean ?
if they didn't they wouldn't be able to move
odd ember
the more you know I guess. I always assumed that train wheels didn't rotate, which explains the excess of track necessary to make a train turn
native willow
damn any ideas how I could do it different
v = d / t
trim matrix
I don't understand that obvs V is velocity i'm guessing
native willow
velocity = distance / time
icy dragon
I don't understand that obvs V is velocity i'm guessing
Velocity = Distance / Time
icy dragon
Distance = Location B - Location A
native willow
you can get the velocity by doing current location minus last frame location over frame time
kindred pier
I am getting an infinite loop pointing to the branch in the middle, yet I don't see anything that would make it loop infinitely
trim matrix
you can get the velocity by doing current location minus last frame location ove...
whats best way to get that obvs get actor location for current
would i literally set old loc - current and reset the old loc ??
trim matrix
size of vector from where
native willow
from subtraction
trim matrix
native willow
oh, its called length in bp
thats the same thing
now divide it over time and you have the velociyt
trim matrix
delta seconds okay
meager spade
Wont he be sending in 0 0 0 into Vector Length?
trim matrix
also is Float being divided or the vector before the length ??
native willow
yeah he will
meager spade
Pretty sure you should set old vector the last thing you do in tick and then use it before you set it
native willow
@trim matrix you set the var before subtruction
meager spade
As I said, set it last
trim matrix
need to get it from somewhere
meager spade
And use it before updating it
trim matrix
meager spade
That way you have the last frame's loc
native willow
first frame wont be incorrect but that velocity will be one frame behind anyway
trim matrix
i don#t think that would work
meager spade
Should, unless you use it more after the set
odd ember
every vector has a default value
meager spade
Or just don't use it for the first single tick if that's possible
trim matrix
delay by 0
native willow
emmm no
native willow
you can ignore the first frame not being correct for your case of wheel rotation
trim matrix
so what i had before was fine
trim matrix
so that
meager spade
I have no idea about the math itself because vector math is not my strong side but yeah
trim matrix
neither is mine haha
native willow
its okay, trust me
meager spade
I always brute force vector math and then never touch the algorithm again
trim matrix
i'll keep that somwhere might come into use
native willow
disregard any opengl stuff
meager spade
I mean I have stuff like checking if a runtime spawned collision box is fully inside another and stuff like that but I can't describe why it works. It just does
I understood it for a couple of hours while writing it but after that I forgot
trim matrix
so we have an issue
let's just say the speed of the train and the rate of the wheels spinning are veryyyyyyy different
like I think the divide is wrong or something haha
native willow
I understood it for a couple of hours while writing it but after that I forgot
I had the same issue and always looked at the link I sent, after about a year I just remembered it
native willow
well, I do not know how you apply the rotation, I just gave you the way to get the velocity
trim matrix
so the
thats how to apply it but the math to get the velocity seem to be in proportion to the speed the train moves veryyyy different
lets say train was leisurely stroll, wheels were usane bolt
odd ember
you need to consider the velocity in terms of how big the wheels are no
trim matrix
.36m
meager spade
Could be
trim matrix
is wheel siz
native willow
@odd ember is right
trim matrix
size
native willow
so the
well that is completely not correct
so you ever driven a car?
the value of the TrainVelocity variable is what you would get on the speedometer
or whatever its called
odd ember
#blueprint slowly turning into a mechanical engineering course
native willow
with a diff that your velocity is in cm/s while in car it is usually in km/h in europe where im from
anyway, the value could be one frame 100 next 105 next 102 next 110
it is not the incremental change
native willow
anyway, the value could be one frame 100 next 105 next 102 next 110
depending on the speed of the train
meager spade
Well it's nice because some of this stuff is things that I've forgotten from school
native willow
and each frame you add that velocity directly in degrees to the rotation
meager spade
Rotation would be something like 36*Pi / Velocity then right?
native willow
so lets say your train is moving 200 km/h that is about 5555 cm/s so every frame you add 5555 degrees to the rotation of the wheel
meager spade
Or did the diameter of the wheel not matter anymore?
native willow
Rotation would be something like 36*Pi / Velocity then right?
you dont have to involve the PI into it, I would just find the correct multiplier for it
meager spade
you dont have to involve the PI into it, I would just find the correct multiplie...
I thought you took circumference of the wheel / velocity since you said size of the wheel matters
trim matrix
Jeeze
native willow
I thought you took circumference of the wheel / velocity since you said size of ...
it wasnt me who said that
odd ember
what did you think it would be simple
meager spade
You kinda agreed
icy dragon
Lads
Can we just jerry rig the Vehicle BP into train?
trim matrix
I was thinking same
meager spade
Same, which is why I got interested
icy dragon
After all, trains are wheeled vehicles but the wheels stuck into a rail.
native willow
if you want to caculate exactly how much the wheel should turn you would need the size of the wheel but that you also involve some more advaned math and I would need to think some more to calculate this
odd ember
basically convert the radius of wheel into radians, convert speed into radians, divide? something like that ?
meager spade
Wouldn't it be simpler to calculate velocity from the rotation since that's how it actually moves?
trim matrix
because as the train came to a stop the wheel speed came down to a stop
maiden wadi
And by the time this is all figured out and decided, it'll probably look ridiculous, so it'll get scrapped in favor of something more visually friendly and less accurate.
icy dragon
The built in PhysX vehicle physics did most of the vehicular equations.
I would've gone the lazy way and let the physics engine to the hard work.
native willow
if you want to caculate exactly how much the wheel should turn you would need th...
or maybe not really, if you have the radius of the wheel it would just be:
Velocity / (2 * PI * Radius) * 360
assuming the units are correct
ie cm/s everywhere
trim matrix
from start of spline to end so it's setting location each frame rather then actually moving to follow spline, hence all this advanced math stuff seems to be only way so far
blender is m
UE4 is cm
native willow
sorry, did I miss smth? I stopped reading your messages for some time XD
trim matrix
wheels are 0.34 m in blender
native willow
wheels are 0.34 m in blender
diameter or radius?
trim matrix
radius
native willow
or maybe not really, if you have the radius of the wheel it would just be:
Veloc...
Velocity / (2 * PI * (Radius * 100)) * 360
icy dragon
well this train runs on a spline over time
I'm sure you can make the ride path to be fixed within the rail spline, even with physics engine in charge, right?
native willow
i did the entire equation for you and you ignored me 😦
trim matrix
oh sorry i thought you were still working it out
icy dragon
Cut the manual equation labour as much as possible and let the automation do the hard work.
At least that's my way of doing things (because I got bad grade at math in school)
native willow
Velocity / (2 * PI * (Radius * 100)) * 360
its done here for you
icy dragon
ie then i could use get velocity then ??
Yes, because of Vehicle Movement Component.
native willow
you have to multiply the radius by 100 because you have radius in meters and velocity in cm
trim matrix
right so gonna sound stupid to ask but that equation
I take the vector length / 2 to begin with
native willow
you can just use the math equation node
and copy pase
copy paste
PI is constant
trim matrix
math equation node what is this
meager spade
Math expression is what I think it's called
native willow
native willow
Math expression is what I think it's called
yep
meager spade
Learnt that they existed a couple days back
trim matrix
then copy and paste what you sent
native willow
yes
meager spade
Will probably use them to clean up some of my ugly BP maths
trim matrix
for pi what would that be
native willow
PI
trim matrix
literally vector length * pi ?
native willow
i think
trim matrix
well lets see if it works
native willow
forgot the name for them 😆
trim matrix
should i remove some ??
trim matrix
okay
meager spade
Also now you have to set old location after the add local rotation I think
meager spade
If you are plugging the return value directly into the X (roll)
native willow
Also now you have to set old location after the add local rotation I think
it doesnt matter
meager spade
You should alos save it as a variable to not do the calculation twice imo
trim matrix
this is what we have have i missed anything apart from maths frying my last brain cell haha
meager spade
Try it, should be good
meager spade
this is what we have have i missed anything apart from maths frying my last brai...
Don't leave us in the dark, does it work?
native willow
this is what we have have i missed anything apart from maths frying my last brai...
try graphic programming someday, it will get worse
trim matrix
i am so pleased can't describe
meager spade
You mind downloading screen to gif and get us a preview? Would actually love to see some trains
native willow
😊
trim matrix
only thing to do now is reverse one set of wheels are the rotating backwards but i've sure theres node to invert
meager spade
Yeah just * -1
native willow
X * -1
trim matrix
that it
native willow
I need to walk the dog and wake up in 4 hours so please show the train 😆
meager spade
Glad I can wake up a lot later than that
I still have a good chance of getting 6-7 hours of sleep
native willow
highschool sucks...
trim matrix
whats X being * by ??
native willow
-1
meager spade
Haha, I work in a clothing store and do dev on free time
Are you still in high school?
native willow
yeah, last year
trim matrix
right i'm cplieing and i#ll show
meager spade
Impressive
meager spade
If it's that zoomed in I really want to see
I thought it would be something like railway empire
native willow
I just want to sleep now 🥱 😩
trim matrix
walla
native willow
pls hurry up
meager spade
Haha
meager spade
Looks neat, was hoping for full fledged train but 🤷🏻♂️
meager spade
We made this peepoHappy
trim matrix
hahaha no the game has them, with a modding team thats brought out unoffical editor mods can not be made for the game unoffically
this is why it;s was awkward as it literally has the location set as it progresses etc dosen't move like pawn or vicheal haha but i'm thankfull to you all and happy it's working haha
i can sleep now
native willow
I dont care about the rest, I saw the train, Im happy now
im going to sleep
see ya guys
meager spade
Sleep tight guys
odd ember
cue Thomas the Tank Engine theme
onyx pawn
I am wanting to do a check to have an actor on its colllision component overlapping an actor it checks if that actor as an oppositi boolean, IE if actor has right collision for placement of wall section it knows it can be placed if its right side collision overlaps with a walls left side collision. any suggestions?
trim pollen
I am trying to write the world's simplest material. which colors by vertex position.
civic briar
I am wanting to do a check to have an actor on its colllision component overlapp...
That was a bit tricky to understand because of the wording, no offense.
Are you talking about on overlap to check which side the actor overlapped specifically ?
If so, and if you are doing the collision checks on the object in the image above -> just use overlap node on each one and do things accordingly.
If you are doing collision in the other actor, just assign 'tags' to the ones in the image above
tepid forum
@trim pollen I belive you will have to use blueprint to assign vertex colors on the mesh components of an actor
then just plug the vertex color into the color output in the material editor
fast escarp
Heya, is it possible to get the parent of a component?
dawn gazelle
?
fast escarp
Seems like exactly what I'm looking for, cheers 👍
onyx pawn
That was a bit tricky to understand because of the wording, no offense.
Are yo...
yeah pardon spelling earlier, Yes I am trying to figure out how to have it do an on overlap with actor of class to check that class and if its struct has a boolean set to true to then set placeable as true.
vapid grotto
Implementation In-app purchases for assets unreal engine tutorial video or github code.
Any SUGGESTIONS WILL GREAT HELP.
Thanks in advance.
vapid grotto
https://docs.unrealengine.com/4.27/en-US/SharingAndReleasing/Mobile/InAppPurchas...
😫 unable figure out myself.
vapid grotto
Noob question,
Yes😋
tawdry valley
last abyss
I want to get this
target is just simply who you're setting it on, you can drag off the holder pin and search for set interacting then the target pin will show up, assuming you have the 'interacting' boolean in your holder class
fast escarp
I'm a bit confused with timers? Not really sure if it's the source of my problem tbh, I have a function that I'm kicking off on a timer
https://blueprintue.com/blueprint/ukhc6kfm/
But it never runs the end segment for some reason
tawdry valley
target is just simply who you're setting it on, you can drag off the holder pin ...
Thank you!!
last abyss
But it never runs the end segment for some reason
can you elaborate a bit more, i mean from what you're saying it sounds like the condition is never true? if so, use prints (or breakpoint) to see what A and B return at the time you're expecting it to be true
fast escarp
yeah, it stops one step away from the interpolation target every time
for ex. target is set to 900 and it stops at 903 and ends without ever triggering the true branch print
I don't know how this is possible
the timer definitely ends
last abyss
thats strange, so you're saying the timer ends but the print string doesn't print even though the timer clears after the print? and there's no other place where the timer is being cleared? also... isn't this an infinite loop..?
like, are you crashing due to infinite loop because in your link you are calling the function at the end of the function if your max walk speed is nearly equal to unboosted walk speed.. after setting your walk speed to the unboosted walk speed
last abyss
maybe in ue5?
fast escarp
ahh it was a crash thing, I was crashing the timer by spawning too many apparantly
.<
last abyss
all good then? 
fast escarp
Yeah I think so >.<
Don't call timer 800 billion times or they stop working, TIL
Thanks, lol
slender stream
Hi, everybody for this function, for each loop only fires for W and not for the rest. Does anybody know why?
Hi, everybody for this function, for each loop only fires for W and not for the rest. Does anybody know why?
maiden wadi
@slender stream Check on LoopBody, not Completed. Completed runs after the loop is over, which means that ArrayElement and ArrayIndex will be the values of the last index in the array.
slender stream
<@!272871180992774144> Check on LoopBody, not Completed. Completed runs after th...
If i go from LoopBody it doesn't even check for W
maiden wadi
ReturnNode ends the loop. You have to be literal. Might need a branch before the ReturnNode.
If ArrayElement IsCurrentlyPressed == true return true, else do nothing. If the loop completes it'll return false.
slender stream
Didn't work either just so you know it works when I dont use a function
maiden wadi
Because you're ending the loop before you intend to.
gentle urchin
Loop body -> branch (criteria is pressed) -> TRUE -> return true
Loop completed -> return false
mortal cradle
When I switch the weapon I also destroy the previous one and my question is, whats better, save reusable info about a destroyed weapon (current ammo, max ammo, damage etc) on player controller in variables or make a seperate struct for every weapon? Or maybe something completely different?
gentle urchin
I would think just de-attatching it and hiding it would solve it for you instead, avoiding unessesary saving of variables in controller , but could be flawed thinking from my side
there's definetly scenarios where it would be not so great
mortal cradle
They would be still eating up some performance in such way, especially if I would end up with xx weapons
But I see it's usually between these 2 methods, either hide or destroy and save variables elsewhere
gentle urchin
Depends on the amount of things going on in your weapon during not active, how many weapons you realisticly will have etc
Usually the number isn't in the hundreds
You can always optimize it later on if performance becomes an issue for you anyways
using profiler to find culprits etc etc etc
mortal cradle
Sure, I think it may be the time to give hiding a chance instead of always destroying the weapon and see if performance will be an issue, thanks
gentle urchin
hide, deactivate (stop tick, remove collision, detach) should get you a long way atleast
If you create/destroy there can be mem buildup aswell before GC comes in i think
earnest tangle
Hiding is imo the way to go because it allows the code to be simpler :) The effect on perf from it is most likely entirely negligible and unnoticeable
harsh hedge
What's wrong with my Ammo Text? It moves when its below 10
gentle urchin
your alignment along with auto size
When it changes size, the alignment's displacement halfs due to the texts half size
Alignment is relative to containersize
harsh hedge
your alignment along with auto size
Ah yes the auto size fixed it by disabling it. Now do you know why the ammo text isn't on to the edge of the screen even thought i set the text position on the edge? It's way far from the edge
gentle urchin
Your setup in the canvas is... questionable at best
You're anchoring it to center , then displacing it with alignment
I'd suggest (without being an expert in setups if it needs to be scalable and whatnot) anchoring it to the edge or corner you want it to be in, and offset it in the direction you want it
harsh hedge
I'd suggest (without being an expert in setups if it needs to be scalable and wh...
That seems to work for me thanks. Should i offset the position with the positionX/Y or with the alignment? Both seem to behave the same.
gentle urchin
I prefer position X/Y
makes it not depend on the size of the container
you can easily test this by adding another element to the text
wrap it in a horizontal box, add an icon (for the bullet image or whater)
If you've used alignment, you'll need to readjust it
if you used X/Y, it should still be correct
harsh hedge
Okay, thanks
gentle urchin
I do usually set the alignment to 1/-1 depending on start position tho^^
Drasticly changing the size of the container, yet it remains in the same spot (anchored down, right)
earnest tangle
VaRest is the only plugin I've heard mentioned for that purpose
Not sure if it's paid or free though. There's a HTTP thing on C++ side of things, but none of it is exposed to BP's afaik
compact mauve
Hi,
I would like to know how I can handle a Sphere Collision to only be active if my Player Character is dead. I know when my Player Character is dead. I dont know how I can effectily disable the Sphere Collision until he is dead. Is disable collision sufficient in this case? I have read this thread about it: https://forums.unrealengine.com/t/disable-an-actor/4738 and they suggest to 1. Stop it from ticking, 2. disable rendering, 3. disable collision and do even more. I am wondering if there is a better way to achieve what I need. Or does in my case disabling collision is enough?
Is it better to spawn a Sphere Collision via AddSphereCollision every time I need it and destroy it when I am done? This is for reviving a player, so would not occur very often.
chrome fractal
I want to move my pawn when when game paused. I set my pawn to tickable when paused, the movement events are "Execute when paused". Events are executing but add movement isn't working.
gentle urchin
Sounds like you wanna play with time dilation instead
chrome fractal
Hi,
I would like to know how I can handle a Sphere Collision to only be active i...
native willow
maybe you need to set smth in your movement component? never done this before so its just a guess
chrome fractal
Sounds like you wanna play with time dilation instead
I tried the actor time dilation but it didn't work can you refer me to a good tutorial about it
gentle urchin
Global time dilation and custom time dilation on the char is prob what you want
Havnt watched any tut about it so got no good refs
chrome fractal
I have tried but got into a situation where one actor supports the custom time dilation who has time line and event tick code and the other one which isn't using any of them didn't support.
compact mauve
https://docs.unrealengine.com/4.26/en-US/BlueprintAPI/Collision/SetCollisionEnab...
Thank you for you reply. I know that these functions exists but according to the thread I have posted this might not be enough. Do I also need to disable tick and other stuff? Those Spheres should use minimal resources if the char running around while the sphere is only being used and should be only active if the char can be revived.
bright frigate
Hey guys, why isn't my linetrace doing anything when I go underground? I put my door underground in the tunnel and the linetrace even shows the green, the door's overlaps work, but none of the doors execute
if I take them above ground then they do
I have an Audio Volume in the tunnel but moving that aside did nothing either. I thought it might be that because earlier I had trouble with the Trigger Volume whose collision settings were causing interference with the linetrace, but Audio Volumes don't have any such thing and as I said, I moved the AV away and it made no difference, where as moving the Trigger Volume away did show me it was the culprit.
I dunno what's going on lol
If I switch it to Line Trace by Channel (I had a For Objects before) node, then it works
any explanation why these two are behaving like this, especially that it works fine above ground?
civic briar
Did you say line trace by objects worked as expected when above ground ?
When you say "above ground" if you are simply referring to something like (ground level vs. a cave) for example. This should not matter.
It all comes down to the collision presets and trace Params being setup properly.
Do you know the real differences between trace by channel vs. object ?
bright frigate
When you say "above ground" if you are simply referring to something like (groun...
Only what the descriptions of the nodes provide so I don't know anything deeply
it's strange to me that line trace by objects is failing when I'm below the ground plane
bright frigate
Did you say line trace by objects worked as expected when above ground ?
yes
bright frigate
When you say "above ground" if you are simply referring to something like (groun...
by above ground I mean the base 0,0,0 plane that is the default 'ground' for any world
I've circled it here
it's even weirder because everything "above" is actually still halfway "under" the grid
not halfway but somewhat
gentle urchin
Doubt it has anything at all to do with "above" and "under" ground
icy dragon
Doubt it has anything at all to do with "above" and "under" ground
I had ALS IK traces working below "sea level". That's what I named for the Z=0.
warm elm
Hey Guys
does anyone know what does this button does?
Like, it seems not to run OnBeginPlay, does not seemed plugged to the output log
is there any reference that says what really happens when someone clicks there ?
icy dragon
That thing actually had puzzled me for years, but never really bothered to take a further look
warm elm
Yeah I found that topic before asking here I'm very puzzled by it.
What does that mean ?
atomic salmon
@warm elm @icy dragon That button allows you to simulate the actor within the blueprint editor viewport. Try for example to create an actor with a cube and a rotation movement component. The cube stands still until you press Simulate, then the rotation movement component is enabled and you will see that the cube spins around.
So even if the actor is not yet placed in the level you can still "test" it (to a certain extent at least).
bright frigate
Doubt it has anything at all to do with "above" and "under" ground
any thoughts on what could be the cause?
gentle urchin
Not without seeing the code atleast
warm elm
<@!155763496888303616> <@!325627930484932608> That button allows you to simulate...
Okay that's a start! we've found something that works when we push that button. Do you know the general rule of what's gonna run, and what's not ?
OnBeginPlay is not called, I tested that
gentle urchin
Maybe you know this but if you need to test an event in editor, you can make a custom event and check thr 'call in editor' bool in its details panel
warm elm
fair point! I actualy knew that and forgot it.
Thsi whole conversation really seems to prove that no-one really uses that button
icy dragon
Thsi whole conversation really seems to prove that no-one really uses that butto...
We often just use the logic visualiser that debugs the BP flow of one instance in game, and go from there :P
trim matrix
I need cart to follow the spline behind the train
So far i have tried taking the location on the spline and offset on the Y but it's mot really working cause then the actual location dosen't match the location for where the cart is set
anyone have any ideas how I could do this so the cart follows behind the train as the train moves along the spline, with Cart also obvs following spline ?
warm elm
get the location at distance X on the spline for the locomotive, and get location at distance along spline at Y for the cart
trim matrix
warm elm
Where Y = X - (0.5locmotive size + 0.5cart size)
warm elm
yes half the locmotive length plus half the cart length
warm elm
Blue plus red:m
the leftmost red cross is where you wnat to get the distance along the spline for your locomotive
the rightmost blue cross iw where you want the distance for your cart
They are separated by Y as expressed above
trim matrix
I don't think i understood the expression
1 is half loco size / .725 is half of cart size
warm elm
it's ok
just take a distance along the spline for the cart at an offset
how long is your cart ?
trim matrix
2.5 M
?
I feel like something is not working
should i be added onto the get distance or minus like I am here. When i try this the cart starts moves back and then when train gets to near end of the spline the cart then starts moving until the train stops (end of timeline) the cart stops also but not far from start of spline
warm elm
I'm going to have to leave you in other's hands
trim matrix
no worries thanks for the help though
gentle urchin
I assume physics constraints are out of the question
trim matrix
i want to do physics now
cause then I can get velocity normally without expressions and I guess it would be easy to do what i'm trying to do
gentle urchin
I heard from someone that it can become insanely difficult to make it run on tracks based on physics , but dont quote me on it
trim matrix
oh it's simple
like its a minature train that is for the visual not something for player to use
gentle urchin
Maybe it was because it was some train sim thingy
Still just allowing it to follow a spline should be pretty much easier
trim matrix
hmm shouldn't be i have a empty project I think i'm gonna get it working there and then transfer things to other project when I know its working
well it would need to do that
lime rain
Is there a way to change the parent of a in-use material instance inside the editor without it crashing the editor? Not tryibg to do this at runtime, just as a utility, https://blueprintue.com/blueprint/al6qrau1/