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Questions tagged [blueprints]

Blueprints is a visual, node-based scripting model used by Unreal Engine 4.

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Why would I add components in code?

Watching a Unreal Course, and the instructor is creating a default pawn c++ class. He is adding all the components with code, but this seems really inefficient to me. Why can't you add components in ...
Millard's user avatar
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Method to make character roam map isn't working

I'm an absolute beginner in Unreal Engine, so sorry for any strange mistakes, formatting, etc. I'm trying to make a game for a project where an enemy chases the player through a maze when it spots the ...
inky's user avatar
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Can't connect to Steam using Blueprints in UE4.25

I'm following this tutorial by Unreal Engine itself, but I don't have a Steam overlay popup like I'm supposed to, (according to the tutorial.) And actually a lot of people have a similar issues like ...
Wolfizzy's user avatar
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Skeleton bone in incorrect spot in-game yet, blender rig, skeleton mesh and physics asset are all correct and behave properly

I've made a custom character and rigged it in blender. Then exported/imported into ue4. It behaves properly in the PHAT and the skeleton mesh looks fine and it all behaves properly in the simulations. ...
thissiteistoxic's user avatar
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How can I transfer this code (originally for FPS template) for use in a Third Person Template?

I learned how to create a blueprint for making a character be able to pick up and drop objects: It did not work, and I believe the reason is because it was originally made to work for the FPS ...
RBlong2us's user avatar
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How to Sync the Location After Getting Up from Ragdoll?

I am currently working on multiplayer fighting game and my game will have an anim->ragdoll when the player is knocked out and be able to getting up from it. My problem now is ragdoll is making my ...
Mira's user avatar
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2 answers
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How can I to get an animation to be triggered by proximity of a mesh actor (an object)?

So I'm making my first build in Unreal 4 using Blueprint. The "game" calls for the player character to grab a particular object (a static mesh actor) and bring it close to a door that will ...
Ferndinand Ursa's user avatar
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Correct use of AttachActorToActor [ue4]

I'm trying to stick some blocks together, but frankly I have no idea what I'm doing. I spawn 2 blocks during run time, and if they have an on hit event they're supposed to stick to each other. It ...
Mauvai's user avatar
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UE4 Procedural Planet Design

I am building a game that requires a full planet but it would be too complicated to create it as one mesh, so I decided that I will use procedural generation to create the (partially) editable ...
Datis Reyhani's user avatar
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1k views

Optimize spawn & destroy? (Unreal Engine)

I'd really like to know how you'd go about optimizing this? 20 actors each spawning 8 projectiles per 0.1 sec which are then destroyed 0.8 seconds later, all done through blueprints Gif: https://gyazo....
Cheryl's user avatar
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UE4 Blueprint Multiplayer Spawning Issue

I'm attempting to copy/modify the MultiplayerShootout project's multiplayer functionality for my own project. I'm running into issues when Player 2 joins a running session though. Finding it very hard ...
Luke Hewitt's user avatar
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Overriden Event does not execute on Unreal

I've been learning Unreal Engine through this tutorial and I am having an issue with overriding an event I created on C++ using blueprints. So here is what I've done: I created a class called ...
Carlos Tirado's user avatar
1 vote
1 answer
171 views

Assigning values on multiple clients in UE4

I am currently working on a multiplayer game and I am having difficulties on assigning values on variables for each clients. Originally I looped through available clients character from HUD then ...
Mira's user avatar
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2 votes
1 answer
7k views

change widget's size through blueprints

I want to change the size X of my 'Horizontal Box' widget's through blueprints but cannot figure out how to do that... the properties that I want to be able to control from blueprints are marked red ...
Serhii's user avatar
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Blueprint script executed on tick but not on construction

Below, on event tick, I am initializing a map of images once, which works fine (remember we are in a graph for a widget blueprint here). Z Cursor Images is the map of the images. The keys in the map ...
Serhii's user avatar
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How to run 'Call in Editor' Functions that are implemented in Level Blueprints?

I have a Blueprint Function within a Level Blueprint, marked as Call In Editor. How can I ...
Natalo77's user avatar
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How to collect objects from map in blueprints

I have a plate with trigger(TriggerVolume) on it. When it overlapped cubes from map deleting. I've manually created references on cubes in blueprint to delete them but it seems very hard-coded. Is ...
Eugene Roasted's user avatar
2 votes
8 answers
14k views

AI MoveTo always fails

I try to move a character with AI MoveTo, but it always fails. I tried to do this with a standard ThirdPersonController and a custom one. The blueprint is simple When the event happens, it starts ...
stdnik's user avatar
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Unreal: Get horizontal angle of velocity-looking direction

I want to calculate the relative angle of the speed in relation to the direction of view: For this I do have the "Get Control Rotation" and the "Get Velocity" of the "Pawn" I am stuck: Yeah I stole ...
Pwnstar's user avatar
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2 answers
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How to find the client's monitor valid refresh rates with Unreal Blueprints?

I am making a settings menu. This includes a combo box where you can change the refresh rate setting. How do I find out the maximum allowable refresh rate of the ...
Natalo77's user avatar
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UE4 tips how to handle Minigolf Multiplayer

Heyo! I'm doing a Minigolf multi-player game right now. What I couldn't figure out by now is how to set up the game logic of the actual game. So where to keep track of all players being in bounds, ...
Pascal Schaible's user avatar
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Why can't UObject derived objects call BlueprintFunctionLibrary functions?

My question is a very simple one. Why can't UObject derived classes (direct inheritance) call functions from Blueprint Function Libraries? __ Edit: My question relates to Blueprints only. An <...
Natalo77's user avatar
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3 votes
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In unreal engine, what's the difference among "set global time dilation" and "set current time dilation" and "set custom time dilation"?

what's the different effect of these three functions, thanks!
TwenteMaster's user avatar
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How can I add Y-axis/Pitch/Vertical to LineTraceByChannel Raycast with Unreal Blueprints?

I am using LineTraceByChannel to cast a ray and return the name of the object it hits in my game world. It works but I am having trouble working out how to add the Y-axis (Up/Down) value. At the ...
Sam Luxton's user avatar
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261 views

How to prevent rendered wound from sliding on moving character?

I am trying to display a rendered wound on the character, but I still can't figure out how to display it properly without sliding on character's body. I'm following this link on rendering the wounds ...
Mira's user avatar
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Get FVector from Blueprint tick function

In my BluePrint Tick function for my character, I have a FVector that always changes, and in my C++ component, I want to get this changing FVector and use it in my C++ Tick function, is that possible ...
Johnny Bra's user avatar
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223 views

Get BP FollowCamera Rotation and Location

I'm accessing my FollowCamera https://i.sstatic.net/dXKjt.jpg from my BluePrintCharacter class in my C++ code, with this following line : ...
Johnny Bra's user avatar
1 vote
0 answers
3k views

Old "Play Montage" node vs new 'Montage Play" and "Play Anim Montage"

so.. Following documentation/guides/etc.. I keep coming across the classical node called "Play Montage" which shows one of those Mario Bros pipes as an icon. However, my version of unreal engine does ...
Seyia X's user avatar
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Constraining ActorLocation X

My question is simple yet it's got me wondering..I'm trying to limit my character's ActorLocation's X movement by checking it each tick. If it's larger or smaller than my desired value I set it back ...
Seyia X's user avatar
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260 views

UnrealEngine: Variables of GetGameMode are empty

I'm confronted with the following issue: Inside the class setup for one of my actors, I'm trying to get the value of an array which is declared, instanced and successfully populated in my GameMode's ...
Seyia X's user avatar
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UE4 Multiplayer how to replicate Player name in lobby

I've been working on a little 1V1 snipper project to try and get a better grip on the replication and the game framework of unreal engine. So after the core gameplay, I'm trying to make a lobby ...
Carl Boisvert's user avatar
1 vote
1 answer
2k views

Making a box character in UE4, not a capsule

I want to make a character for a Breakout game that is a kind of cube. From the instructions from Unreal it appears I need to create a 'Character' blueprint. But when i do this, it comes with ...
I_Keep_Trying's user avatar
2 votes
1 answer
2k views

Unreal Engine without Blueprints

Hello fellow coders I have been using Unity and other game dev libraries fora fun hobby for many years (on-and-off, I am no expert!). But I really am not happy with Unity and their multiplayer network ...
I_Keep_Trying's user avatar
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456 views

C++ property is none when accessed in bp

I have a class in C++ that I want to access in BP. It appears to be fine in C++ but in BP I get Accessed None errors when I try to use it in BP. Here is the class declaration that I am trying to use ...
Jason Crosby's user avatar
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1 answer
2k views

Destroy multiple actors by pressing a button

I'm making a simple project to learn Unreal Engine. I have 50 actors (blueprints) and at the start a function will loop 5 times and spawn 5 of the 50 actors randomly. How can I destroy the actors by ...
NameHere's user avatar
2 votes
1 answer
8k views

Unreal Engine: Object Reference is not compatible with pawn Object Reference

Hello I am a beginner Unreal Engine developer learning with Blueprint and I am trying to take an imported FBX model and put a pawn control on it. Below is what I am trying to do. By the way, ...
Alexander Micharski's user avatar
1 vote
1 answer
2k views

Passing by pointer-reference in blueprints with C++ definitions

MyFunction( Class *& foo ) Inside a derivative BP of the above C++ class: foo shows up as an output rather than an input. Why?
Natalo77's user avatar
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1 vote
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How do I access a struct that resides within a struct in blueprints?

I have a struct: "FOuterStruct" This is defined in code such that it contains another struct type: ...
Natalo77's user avatar
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1 answer
147 views

Why can't a blueprints project edit BPs derived from c++ classes?

I am working in a relatively small team. Now, because our IT guy is incredibly unhelpful, we don't yet have VS on all the machines (as I know this would solve the error). However, I'm still curious ...
Natalo77's user avatar
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1 vote
2 answers
24k views

How to resolve "Accessed None trying to read property" error?

Whenever I finish running the project, this error message appears: Blueprint Runtime Error: "Accessed None trying to read property jogador". Blueprint: Jogador_BP_Anim Function: Execute ...
Boneco Sinforoso's user avatar
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1 answer
942 views

How to make my character walk by clicking and holding the mouse button?

I created an Action Mapping using the right mouse button as a reference. The Action Map is called "Andar" (walk in english). In the character code, I call this Action Mapping and in it I make the ...
Boneco Sinforoso's user avatar
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2 answers
1k views

How to make a texture appear the same way in a cube?

My problem seems so simple, that before asking the question here I did a search on google and this site: https://forums.unrealengine.com/development-discussion/content-creation/33665-applying-and-...
Boneco Sinforoso's user avatar
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0 answers
22 views

Error calling a Action Map

I tried calling the event Set Destination, simply to make an impression on the game screen: I did not succeed. I modified the 3 options displayed on the right (consume input / execute when paused / ...
Boneco Sinforoso's user avatar
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2 answers
4k views

Problem with action mapping

Summarizing my problem well, I need a single button (right mouse button) to do two things. In my project (TopDown) I defined that instead of the left mouse button, the character moves with the right ...
Boneco Sinforoso's user avatar
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0 answers
1k views

How to make a Multicast Delegates in Blueprint?

I used the Set Timer by Event, but I could not use the delegate in more than one event: I've been researching about and it's possible, but I've only found results in c ++: https://docs.unrealengine....
Boneco Sinforoso's user avatar
1 vote
2 answers
270 views

How to decrease the size of a distance?

I made a code for the character to be teleported to the place where the mouse cursor is, if the distance is less than or equal to 350. Blueprint: I happen to wish that if the distance were greater, ...
Boneco Sinforoso's user avatar
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1 answer
70 views

Where is the part of the code of the mouse click in the TopDownCharacter blueprint?

I have a project where by pressing the B key, the character after a time interval is teleported to a point on the map. I can do this. It turns out that I imposed conditions so that at the end of the ...
Boneco Sinforoso's user avatar
-1 votes
1 answer
263 views

How to set the delay based on the number of attacks performed in 1 second?

I would like the delay that defines the interval in which the warrior deals damage to an enemy, was calculated based on a number of attacks per second and not a delay. Explaining best, I'd like to ...
Boneco Sinforoso's user avatar
0 votes
2 answers
535 views

How can a variable have two values at the same time?

Just to clarify, I do not want to know how to make a variable display 2 values ​​at the same time. I want to know how this is happening in my project. In the Level Blueprint I have a timer that ...
Boneco Sinforoso's user avatar
0 votes
1 answer
516 views

Way to store object reference?

I have a project where a minion overlaps the tower. Needless to say, the problem occurs when more than one minion overlaps the tower at the same time. It turns out I've figured out how to go through ...
Boneco Sinforoso's user avatar