Questions tagged [ai]
The design and/or logic of how an in-game entity makes decisions about its behavior.
774
questions
0
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1answer
34 views
Reach a moving point smoothly
First, for my specific problem, we can assume we're working in a 1D space.
I have a point B moving at a specific velocity V.
I want to smoothly move the body A so it reaches the point B and moves at ...
0
votes
1answer
16 views
Move between two points at a constant speed in LWJGL
I've been making a game engine in lwjgl and I have been trying to get an ai to move from one point to another. I used a lerp method but the speed is dependent on the distance between the two points, ...
1
vote
1answer
43 views
Does a Utility AI system run every update/frame to determine scoring?
Am learning about Utility AI. I understand what it can be used for but not how to correctly implement it.
Does the scoring for an NPC need to be checked every frame/update/tick?
Imagine you have an ...
-1
votes
1answer
134 views
Do games always use AI for defining behaviour of opponent players or is it just vector math?
I'm trying to learn how games implement tactics for opponents/enemy player.
In games like Street Fighter with maximum difficult, the opponent (computer) is too good at predicting and countering my ...
13
votes
4answers
5k views
AI for auction bids in the Monopoly game
I'm currently creating a Monopoly game simulator in C++.
I am currently struggling with implementing the auction mechanic for AI players.
How could I implement the bots' participation in auctions? How ...
0
votes
0answers
14 views
Unity 2d - Enemy continuous curved movement
I'm trying to implement random enemy movement in a top down shooter game. Currently the enemy moves in a straight line from his current position to a randomly generated target position. Is there any ...
3
votes
1answer
33 views
Ue5 AI MoveTo does not work
I have been having problems working with AI MoveTo and created a very basic version in the hopes of finding the problem:
As you may see, I have one single character with the default skeletal mesh and ...
2
votes
1answer
91 views
AI driver for racing games
I'm very curious about AI drivers in a racing game, so I tried to build one :). I've built a 3D
closed racing course and a car with Unreal engine and all the physics, and I try to develop an algorithm ...
0
votes
1answer
59 views
How can I make a list of factions, each of which has a "reputation" according to every other faction?
In my game, I'd like each and every NPC to belong to a faction, such as Bandits, Townsfolk, Elves, etc.. Each faction would then have an opinion of each other faction, stored as an integer rating, and ...
0
votes
1answer
29 views
How to keeping my AICar on track?
so today I made an arcade race game but stuck on make AICar that keep on track when play,
what I've made is the AICar sometimes cutting the track or like making a shortcut to the next checkpoint and I ...
1
vote
0answers
25 views
UE4 - Make AI move up and down?
I have this AI character that flys around on the x and y axis in random directions, but is it possible to make the character move up and down randomly? I tried movement input with a lerp and delay but ...
1
vote
0answers
109 views
How to make Enemy Wander in 2d topdown unity
I'm making a top down shooter in unity. The enemy AI travels straight to the middle before actually wandering when I put in the code. What should I do to fix that? (I'm using unity 2019.4.28f1 if that ...
1
vote
0answers
53 views
Skills to make me more a desired AI Programmer [closed]
I am a 31-year-old student studying Game Programming and Development. I am getting close to graduation, and I am curious about the skills needed to become a good AI Programmer. I would like to get a ...
0
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0answers
42 views
UE4 Blueprints - AI movement on moving platform/object (like a ship deck)
I want to have AI (enemies) on a boat that moves on a path around the level (an island). But the AI seems to have a problem navigating on the deck of the ship. They always end up on the far back of ...
0
votes
0answers
23 views
Navigation algorithm to find closest point with LOS to another agent
I am trying to design an algorithm to detect the closest point where an agent has line of sight to another specified agent in 3D space and to move towards that point.
The use case would be a turn ...
2
votes
0answers
37 views
Finding a path to a circular zone in continuous space [duplicate]
I need to find the shortest path for an agent that wants to use a ranged attack against the specified target. This means that the path's ending point should be inside the range of the attack and have ...
2
votes
1answer
64 views
How to create the slow random movement effect you see in shmup enemy idles?
I’ve noticed in a lot 2D shmups, after enemies accelerate onto screen and arrive at their arrival point, they don’t simply sit static at their arrival position, but rather begin to gently move in ...
0
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0answers
77 views
Companion AI with NavMeshAgent causing jittery movement on the X-Axis
I'm trying to do a companion AI that follows around my player but with a certain distance.
I first tried to self-program the movement behavior. but realized quickly that a ...
0
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0answers
62 views
Unreal Engine 4 AI Character Pawn Entirely Unresponsive to Movement Commands
I'm new to game development and to Unreal but I cannot for the life of me get my AI character pawn to move at all using any method I know.
I'm developing a 2d Sidescroller game using a Tilemap. I have ...
0
votes
0answers
19 views
See precision (pr curves) in TensorBoard (Unity ml-agents)
How could I log and later view the precision values and/or pr curves of my Unity ml-agents onnx model? Precision values don't seem to be logged by default, as TensorBoard doesn't display anything at ...
0
votes
0answers
47 views
Sparse voxel octree for 3d pathfinding and Manhattan distance
I've been learning about using sparse voxel octree for 3d pathfinding based on Daniel Brewer's chapter in Game AI and his talk at GDC 2015.
One aspect that I'm really confused about is exactly what is ...
0
votes
0answers
26 views
Chess Programming - Principal Variation and Transposition Tables
Right now I am currently trying to implement a principal variation search algorithm for my chess engine (C++) as well as a transposition table. I have looked at various sources online and have become ...
0
votes
1answer
60 views
How to implement Vector3.MoveTowards follow with random movement
I want to implement an AI behavior where an enemy runs towards the player while sidestepping randomly and aggressively (like in this video: https://www.youtube.com/watch?v=35Ut_C4eL40)
Currently I am ...
4
votes
5answers
360 views
If an AI is sure it is going to lose, what can it do to make the game fun for the player?
Context: I am contributing to a sequential turn based strategy game. I have an idea of how to improve it, but I need some input to help me do so. We currently have a really dumb AI that just follows a ...
1
vote
1answer
85 views
Implementing priority structure into a behavior tree, to react to player actions
My goal is to have a behavior tree that can run alone (autonomously) but also react to input from the player.
I'm making an AI for a hack and slash game where the AI will fight you, chase you, etc. ...
0
votes
0answers
34 views
Minimax Algorithm for turn-based game
how should I implement the Minimax Algorithm to a XCOM like turn-based game? I mean I should use score to each action like, move to cover, shoot, fall back etc. Or even is it possible to do that kind ...
0
votes
0answers
30 views
Steering - Flocking with stopping without jittering
I have a simple steering system that integrates flow-field based path following and separation behavior that I use to control hordes of creatures.
These creatures follow the flow-field, but if a ...
1
vote
1answer
127 views
Behaviour Trees: How to clean up when a sequence is interrupted?
I'll try to show my problem on a minimal example, in reality it's more complex:
It's a simple behaviour, that repeats "an action" that has a certain animation. If a player gets close, this ...
0
votes
0answers
65 views
Snooker/Pool AI Predicting end location of cue ball Unity
I’m trying to implement a pool/snooker game. I figured the best way to implement the ball movement/potting mechanics is to use the physics simulation, apply an impulse to strike the cue ball and let ...
0
votes
0answers
174 views
How can I make Enemy follow the player in unity
I have a 2d platform game where I want the enemy to follow the player for some time
Currently the enemy constantly follows the player -
...
0
votes
0answers
31 views
Multiple AI's sharing code
I wasn't sure what to call this question I might update it with a more suitable title.
The issue I have here is more conceptual than in-depth code, and as such this might be subject to debate. However ...
0
votes
3answers
605 views
Behavior Trees or GOAP for Rimworld-like game?
I am currently making a Rimworld-like game. For now, it is identical in appearance, how the map works and how the pawns (colonists) are supposed to function.
Core world-generation logic and A* ...
0
votes
1answer
34 views
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 ...
0
votes
1answer
80 views
A* algorithm: need help fixing path that come in contact with obstacle
I am using A* as a pathfinding technique for my AI; it works fine until it gets close to an obstacle (in my case rocks). Right now it just continues the loop if it finds a neighbor thats a rock. It ...
0
votes
0answers
24 views
Assistive Machine Learning for Scene Creation
A few years ago, I have seen a talk about assistive ML tools in game development. I think was from
Ubisoft La Forge, but could be wrong.
In the video it was demonstrated, how an „AI“ understood the ...
3
votes
0answers
82 views
Navigating an AI that shouldn't take the shortest path but the scenic route instead (e.g. fish)
I'm working on a sidescrolling game with an underwater "fish-like" AI that has some goals (interacting at various locations) and things to avoid (player).
Started of with a Navmesh and ...
0
votes
0answers
209 views
Implementing complex AI in an ECS?
I'm having a hard time wrapping around how something quite stateful such as complex AI would be handled in a pure ECS (such as components being only data and systems operating on that data)
Things ...
0
votes
0answers
54 views
Move enemies over the network without sending their positions
I am trying to move enemies on two clients without sharing their positions. I use this:
startingPosition + GetRandomDir() * Random.Range(1f, 10f)
To have the same ...
-1
votes
1answer
382 views
Check if NavMeshAgent can reach position with dynamic obstacles
I am currently checking if a position in the NavMesh is reachable. It is reachable without the NavMesh obstacles. But the moment I add it, NavMesh's CalculatePath() ...
1
vote
0answers
48 views
How to adjust a path to avoid collisions with moving obstacles inside a nav mesh?
I'm writing a script for a bot and I'm a little bit stuck.
There's a game, there's a player (me) and I want to get from point A to point B.
I can find the path via bot's API (it returns a ...
0
votes
2answers
451 views
Behavior tree: why?
I am new to UE4 and game programming altogether. Following multiple tutorials and documentations I see mentions of behavior trees. In tutorials they do not use them in favor of blueprints because they ...
0
votes
1answer
108 views
Minimax Algorithm Scoring Mechanism
I'm basically trying to understand the chronology/sequence of the algorithm and where should I call the
scoring mechanism function that calculates the score of each move and returns an int.
For ...
0
votes
0answers
43 views
What are AI characters doing when not in the viewport?
In a game like star wars battlefront, 100+ AI characters are competing against each other both onscreen and offscreen to shoot each other and capture bases. My question is what types of efficient ...
42
votes
1answer
4k views
Why use convex polygons and not concave ones in path-finding?
I read in Unity's path-finding documentation that they use convex polygons because there won't be any 'obstruction' between 2 points. Then they add their vertices as nodes along with starting and ...
0
votes
1answer
44 views
Enemy AI on a platform
I was working on a 2.5D enemy AI movement on a platform. The idea is to get the enemy(green cubes) to move along the platform, when it gets to the edge of the platform, it turns around and goes the ...
1
vote
0answers
49 views
Any good pathfinding algorithm for lots of different speed zones? NavMesh seems not work
I have a terrain map with lots of different areas: roads, grass, swamp, forest, mountains. Each has different speed for the player. The map is continuous 3D map, not grids.
Given a start & end ...
0
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0answers
45 views
Help with Chase AI? (Similar to Blue Demon)
all! I'm working on a chase ai / follow player script, for a 2D project of mine, I'm going for something similar to Blue Demon where an integer value controls what enemy is on screen, and can be ...
0
votes
1answer
86 views
Heuristic Cost in A* algorithm
I have been learning about the A* path finding algorithm and I can't understand the heuristic cost in this algorithm. What is it and what is its use in the algorithm?
0
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0answers
23 views
How to handle Animal AI biting and holding onto the character
Example state of decay, zombie biting the player
1
vote
0answers
48 views
A system that figure out the fastest (not shortest) navigation method between points for 2D spaceship with 2 axes propulsion
I am working on a space themed game with space being a 2D pane. The player issue order by clicking on the coordinate for his/her ship to navigate to a certain point on the pane.
The player ship can:
...