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Questions tagged [state]

Generally used in correlation with a state machine.

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Jump state in AnimGraph is not entered when character jumps

I finished following the "setting up character movement" gameplay tutorial and everything works, except for the jump animation, which does not play when jumping. I determined that the issue ...
TechnicalVoid's user avatar
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26 views

How to Prevent Subsystems from Responding to Events from Other Game States

I'm writing a game from scratch in C++, using the book Game Coding Complete as a guide. The engine in the book has an event manager which is used to communicate between the game's systems, such as ...
Vitamin C Plus Plus's user avatar
1 vote
1 answer
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What is the simplest way to enforce/remind people to set a variable in a subclass when the code is dynamic?

I have a base class for Abilities. This is a point and click game, therefore I have Click, Hold and Drag subclasses. What I need to do is remind myself to set the player's AI state to Ability when it ...
Thisisstackoverflow's user avatar
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3 answers
99 views

Switching states within conditional statements in C#

In the usual Update() of a state (let's call it Attack for simplicity) of an object state manager ...
Alex's user avatar
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1 answer
781 views

Unity Save System - is there a better way?

I've been trying to understand how best to approach carrying state over between scenes, and how to save/load game state. I've built an isolated project to focus on building out this approach. You can ...
Samuel Slade's user avatar
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1 answer
28 views

Assistance with State Machine Event subscription error? [closed]

My aim is to create events within my various states that will broadcast to other GameObjects when to take certain actions and to send certain data without needing to reference each GameObject. I have ...
ssnssnss's user avatar
1 vote
1 answer
109 views

Is writing an if statement for every element in an array the most efficient way to do so?

I have a few string arrays for which I can cycle what the current active element is (of which there can only be one at a time) using the number keys. Something like the item inventory in Half-Life. I ...
ssnssnss's user avatar
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1 answer
108 views

Manage game states of a card game with MVC

I am creating a Yugioh java game with MVC. I was wondering wich is the better way to manage game states with MVC? I tought maybe I can use State Pattern in Model section with DrawPhase, ...
Zetsu_Zetsu's user avatar
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45 views

How to separate player state on shared object?

I'm new to game dev and I'm learning about quadtrees for planet rendering. I'm curious on how do I separate player state with quadtrees. For example I have a ship A that's getting close to a planet, ...
Memory1's user avatar
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715 views

(FSM) Detect a change on a variable on Update, and trigger certain State

So, I'm working on a FSM that ticks on every frame. The inner workings can be simplified to this: The user (me) creates the States: ...
YoshGJ's user avatar
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2 votes
1 answer
3k views

Is there a way to globally/uniquely reference a node in another scene?

I'd like events/actions (e.g. pressing a button, defeating a mini-boss, etc.) in one area of the game to affect things (e.g. unlock/open door, enable boss spawn) in other areas that are distinct/...
yoozer8's user avatar
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How can I efficiently and safely represent and query game state in the logic programming paradigm?

After learning Dialog, I've discovered representing game logic using the logic programming paradigm is a lot of fun; the composability and non-locality makes it feel like some kind of superior ECS. ...
smallobsession's user avatar
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1 answer
433 views

Networked game with physics and client side prediction and server reconsiliation causes lag

I'm trying to make a multiplayer platformer game. I can almost get client side prediction and server reconsiliation to work, but there is one issue that I just can't wrap my head around. Lets say that ...
Per Henrik Jakobsson's user avatar
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1 answer
636 views

Combining a pure ECS with a FSM scheduling system

Currently I am evaluating how to refactor my core game logic since I tried to design most of it in pure ECS but isn't really completely feasible the way I intended it. My game at its core is a turn-...
Christian Ivicevic's user avatar
1 vote
0 answers
93 views

Statemachine to behaviour tree?

Background I was able to convert simple statemachines like this... Into a BT looking like this (Notation describtion)... ...
genaray's user avatar
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0 answers
101 views

High Frequency Polling And Handling Fuzzy Inputs

I'm developing a FPS game and I'm considering polling at a high frequency on a separate thread. This decouples the game loop and reading input. I get sub-frame samples and can process those samples ...
Jesse Lactin's user avatar
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1 answer
685 views

Animator State does not switch immediately through code, even tho all transitions have "Has Exit Time" checked off

first of all, this is my code, I'm prototyping a state machine using Unity Animator (First Time) and I'm stuck coding a simple burst of speed. ...
Venay's user avatar
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1 answer
81 views

Using a state pattern across multiple controllers / general architecture advice

I'm trying to implement a state pattern - having skated by with enums forever - and have hit a bit of a wall when it comes to it's implementation in my game. It's a grid based strategy game with an ...
Robert Lee's user avatar
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0 answers
885 views

Animation shown as playing in the animator, but it doesn't show in game (Unity 2D/C#)

I have an Animator on this gameObject. The Animator hits one state when some parameters are true, it can transition to this state from any state. The parameters are fine because i can see in the ...
Josh Bailey's user avatar
1 vote
0 answers
139 views

Unique_ptr game state vs shared_ptr game state

I have this (typical) base class: ...
Battyhal's user avatar
1 vote
1 answer
82 views

Implementing a more reliable upwards slash?

I am working on a 2D action platformer and I am currently implementing an upwards slash. For a normal horizontal slash, the player must press the attack button. For an upwards slash, the player must ...
DyingIsFun's user avatar
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1 answer
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How do I make an image appear based on the current state I'm in?

I am following a tutorial called Complete C# Unity Developer 2D: Learn to Code Making Games. In one section we create a text-based game, where we display a canvas with some UI elements to the user. ...
Starnes Student's user avatar
2 votes
4 answers
4k views

How to Prevent Enemy Overlap

I am working on a 2D side-scrolling action platformer. I am currently working on the state logic for my enemies. These are humanoid enemies that walk on the ground They currently have idle, patrol, ...
DyingIsFun's user avatar
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0 votes
3 answers
4k views

Unity: Is type casting every frame too expensive?

I have a state machine that controls my enemy AI. Each AI has a target which may be a Player, an obstacle, a shell, or even a Vector2 position. I'm trying to abstract my "target" member, and my ...
retrovius's user avatar
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3 answers
1k views

Using State Pattern with Unity

I am new to Game Development and Unity. I have written a component for Jumping and Running, CharacterJumpAbility.cs and ...
Vasile Alexandru Peşte's user avatar
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1 answer
51 views

If online games use permalinks

I'm trying to figure out how to accurately capture the state of the web app by a URL, similar to something like https://jsfiddle.net/, where they create ...
Lance's user avatar
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1 vote
0 answers
37 views

How to track/identify amorphous blobs in 2D or 3D space

In doing HTML/DOM work, you are working with concrete nodes which you can visibly touch and have a defined shape and boundary. What I'm wondering though is like with a cloud like structure, or like a ...
Lance's user avatar
  • 177
0 votes
2 answers
3k views

How to represent a modular FSM for AI using ECS?

I am considering to implement AI using ECS which actually contradicts working with naive FSMs. My current idea is to have multiple components which represent the particular state an Entity that has a <...
Christian Ivicevic's user avatar
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0 answers
97 views

Handling "nested" user actions in client/server card game

I'm developing a card game in JavaScript in a functional programming style and I'm unsure what is the best way to implement the flow of player actions that require other player actions for their ...
Thiatt's user avatar
  • 101
1 vote
2 answers
2k views

Is Pushdown Automata better for user input than Hierarchical State Machine?

I saw an example of code using HSM for user input, but to me it seems that Pushdown Automata would be a better fit. I'm confused. If I'm right, then after Hierarchical State Machine exits a ...
Philosophical Ragdoll's user avatar
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0 answers
197 views

Creating state machines to handle multiple aspects of a game?

So first off, I'm not sure if it matters but I am using SFML and C++. I've been wanting to write a game and I've read a lot on FSMs and what they do/make things easier for managing games, etc. What I ...
Rivasa's user avatar
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1 vote
1 answer
777 views

How can I simplify my state machine transitions?

I currently have the following base class which I inherit from for my player states (e.g. Idle, Walking, Jumping). ...
Alex Tennant's user avatar
1 vote
1 answer
163 views

How to design phases of a single turn

Battles in my game run fully automatically and return a combat log afterwards. My main game loop looks like this: ...
Iavra's user avatar
  • 23
2 votes
0 answers
1k views

How can I build Goal Oriented Action Planning within an Entity Component System?

I've been creating an interactive fiction game in javascript that uses an entity component system as described here. The problem I've encountered is in developing the AI system for the game. Ideally, ...
pigasus's user avatar
  • 21
0 votes
1 answer
126 views

How to manage instances of (placed) cards and decks in card games?

This question sounds quite specific, but I mean in general, how do you manage something like a card game when it comes to decks (one for player1, one for player2, ...) and placed cards focused on ...
nitwhiz's user avatar
  • 47
2 votes
1 answer
1k views

When/where should a game state transition take place?

I'm in the process of redesigning some of my state management code (there are several features I've grown to dislike in practice..) which was based on this tutorial and others. The issue I'm having ...
aslg's user avatar
  • 342
0 votes
1 answer
136 views

Structure GameObject - States - Visual representation

Question: What is the best data structure for GameObjects that have different states and thus different visuals? The situation is: I'm creating a game for mobiles (written in Kotlin, no Engine used)....
Tobias Reich's user avatar
0 votes
1 answer
62 views

D3D11 SetShader States

I have some questions regarding the XXSetShader and what happens after, for instance I would like to know if when XXSetShader is called the subsequent calls would be bound to that particular shader, ...
Richard Harrow's user avatar
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0 answers
46 views

Find required entities to accomplish specific task in shortest time

I have a grid like map with entities that can perform turn-based actions like moving or growing strength. When I have a task that requires a certain strength, I want to find the entities required to ...
Sven's user avatar
  • 387
0 votes
1 answer
259 views

Problem understanding finite state machine

I want to use the finite state machine for the ennemies AI in my game. I implemented the pattern and it work fine for my first enemy (enemy A): Enemy is in IdleState by default When enemy see the ...
ApheX's user avatar
  • 135
1 vote
1 answer
100 views

Managing Discrete Character Animation States

I'm creating a 2D game in which each possible direction of movement for the player, (Up, Down, Left, Right), has its own distinct animation, i.e., they aren't rotations of each other. Currently I am ...
Nikolai97's user avatar
  • 121
0 votes
1 answer
2k views

StateMachineBehaviour.OnStateExit is called before StateMachineBehaviour.OnStateEntered is called

When I start my game I get null-references in my OnStateExit of objects that are initialized in the OnStateEntered. After this it goes smooth, so it only occurs at startup before any conditions for ...
bbnkttp's user avatar
  • 101
1 vote
1 answer
146 views

What component should hold the character movements in ecs and fsm?

In the below code, there's a FSM for CharacterState that will be handled also in CharacterSystem. The problem was, I don't know ...
ronscript's user avatar
  • 501
0 votes
1 answer
671 views

Should I use single state or multiple state of an entity in finite state machine?

In the below code, is the options I've created whether to use single or multiple states for my character or other entity. Still can't decide which one is better inf using state machines. ...
ronscript's user avatar
  • 501
2 votes
0 answers
1k views

Game logic implemented using TPL / async / await, and performance of it

I'm working on a game, and as a typical game (here using Monogame) it uses frame based approach, where all logic happens in Update() method called every frame. As a consequence, any sequential logic ...
Arek's user avatar
  • 171
1 vote
2 answers
1k views

How to handle global Data within a state machine setup? (C#)

I am currently building a turn-based framework (Unity,C#) I was tired of my former tight-coupled systems and opted for a state machine this time, basically all components subscribe to the state-Enter ...
user avatar
1 vote
1 answer
1k views

InvalidOperationException when peeking from a stack within custom editor

I've got a simple state machine for handling game states which works using GameObjects that I enable/disable in order to switch the states. Since some states can be ...
artganify's user avatar
  • 469
5 votes
3 answers
3k views

How to make a PROPER main menu (or any other UI windows/modals) in Unity?

So, I'm currently learning both about Unity for the first time as well as the 'new' 2D UI system, but I'm having a hard time figuring out how to make windows, modals/dialogs, main menus etc. which are ...
artganify's user avatar
  • 469
1 vote
1 answer
161 views

What exactly is a 'set of states'?

Whilst looking into game-oriented applications of programming patterns I discovered a question on this site which suggests that a 'set of states' is superior to a 'stack of states' but does not ...
Pharap's user avatar
  • 1,637
0 votes
1 answer
92 views

Code vs. Configuration in Unity [closed]

I know a thing or two about Unity at this point, but I've still lots of subjective, best practice questions, Such as: How do you decide what values are obtained via Start/Awake initialization, and ...
greenland's user avatar
  • 219