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Questions tagged [game-loop]

The central code loop responsible for handling the running gameplay. At its most basic state, it accepts input, resolves the actions of entities, and renders the scene.

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52 views

Exchanging data between custom-built hardware and games

I have a built my own steering wheel and motion platform that I would like to connect to popular car racing games (e.g. iRacing, Dirt Rally). I need to read data such as the car's acceleration (to ...
4
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1answer
149 views

Fixed Timestep with Interpolation | Blurry & Choppy

I've been implementing a game loop with a fixed timestep which uses interpolation as described in the (legendary as I have come to find out as it is referenced in almost every post I have read trying ...
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1answer
52 views

Is it always necessary to synchronize rendering in a game loop?

When writing a game loop from scratch in java for an android game applications, it is very common in many tutorials I have read that the keyword synchronized is used to synchronize update and ...
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0answers
41 views

Stuck at Goomba's speed and cancelling animation at game over

I'll try to be as precise as possible. First Issue: If you look in the code, I have a drawObjects function which calls collisionDetection function. Inside collisionDetection if player(mario) touches ...
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1answer
38 views

Web based poker on Phaser 3

Please can somebody help me as I'm a lil bit new to game dev and user interface designing. I am trying to create a simple Texas holdem poker using phaser3 for multiplayer application. I have a few ...
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0answers
15 views

How Best to Implement Fixed Time Step for Gsync/Freesync Monitors?

I currently implement my game loop using a variable fixed timestep, i.e. dt = 1 / monitor_refresh_rate with vsync (or pseudo vysnc with delays where vsync is ...
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1answer
56 views

Pause updating but keep rendering

I am creating an implementation of Snakes and ladders and I run into some issues.The game is updating too fast and I want to limit the framerate kinda,or make a pause so that the move is actually ...
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1answer
81 views

JavaFX AnimationTimer VS Swing Game Loop

After looking at some code sources out there I noticed Java Swing Games usually create a class implementing Runnable, create a new Thread and set up the game loop ...
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2answers
59 views

How can I fix my velocity damping to work with any delta/frame time?

I am decreasing my velocity by 50% every second using a guide I found online. I am using the code here and it gives the right result but only for very small values for dt: ...
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1answer
40 views

How to update model transform of components when using physics?

I implemented a high level components system for my renderer and am curious about the right way to update the transforms components of models that have a physics rigidbody attached. I am using ...
3
votes
2answers
83 views

When to stop taking items from ever-growing queue and start processing them?

I am developing a fast-paced multiplayer shooting game and following instructions from this source http://www.gabrielgambetta.com/entity-interpolation.html. In the article it says that: several ...
2
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2answers
127 views

C++ create array of multiple types

I tried to create an array Entity[] with elements Human and Zomby. ...
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1answer
53 views

Make a variable go down as another goes up?

I am making a JavaScript game called "Spoop: The Clicker", and I have a variable shown by text: ...
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0answers
95 views

writing a game loop for a networked multiplayer game

i am trying to implement a networked multiplaye game. i understand the game loop described here : ...
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2answers
184 views

How can I benefit when I don't use gpu?

I am trying to make a 3D game with C++, SDL, and OpenGL. My program roughly looks like this: control function has only CPU operations. draw function has CPU and OpenGL functions operations. I just ...
0
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1answer
73 views

Instantiate prefabs at particular vectors using text file (Unity3D game)

I need to read a text file containing two pieces of information on each line, and use that information to instantiate a prefab at the correct location in a Unity3D game (c# script). The locations are ...
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0answers
50 views

Is creating a separate thread for each game session a bad idea?

I'm currently working on iocp game server. My game is just like diablo3 basically. 1~4 players join a separate session. I did basic iocp preparations and now I'm working on game session class. The ...
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0answers
29 views

Render and Update in Robotlegs Like Archtecture

I'm developing a small Snake game using a custom engine and trying to apply Robotlegs-like MVC-S architecture with Commands, Events as well. Currently I put some commands for collision checks, bounds ...
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0answers
65 views

How can I solve the jerky images when camera positions were calculated and sent from another computer?

I'm working on a simulator project. Computer A which uses a stick as a controller to produce operation data and calculate simulate data which will be sent to computer B as camera positions to render ...
0
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1answer
40 views

Canvas Infinite Map: How to have reappearing objects at static X,Y even when looping

I made a html canvas example of an infinite scrolling map with objects in static places. As you can see in the Fiddle below, when you move left with the Arrow Keys, you can see that the map does not ...
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1answer
49 views

NodeJS client gameloop running slightly faster than server gameloop

So I'm working on a real time multiplayer game in NodeJs (Client and Server). Both loops handle the same "physics" (movement at a constant rate) and both are running at 40hz or 40 times per second. I ...
3
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1answer
149 views

SDL2 mouse motion event keeps occuring

The code I'm using is like so: ...
0
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1answer
116 views

Use vsync event instead of a 16ms timer?

I found that in game development, most people set a timer that gets triggered every 16ms to do the rendering. As an Android programmer, I'm familiar with the Choreographer. You set a callback that ...
0
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1answer
81 views

Time loop/ticking architecture

Say I build a snooker game, where balls need to jitter around. Balls belong to a class (ball class), where all the ball functions are defined. In the animation, time evolves by a clock ticking ...
0
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2answers
126 views

While loop running in thread, but not doing anything [C++]

I am trying to multi-thread my game so that one thread updates and renders the player, while the other listens for inputs. I used a while loop to keep my detached thread running in the background, ...
1
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1answer
145 views

My Java Game's movement looks awfull. Maybe Problem with Thread.sleep

I have a big problem with my Java games. In every game I make the movement of the player and objects just looks awfull. The framerate is 60 fps without any problems. But the movement looks extremly ...
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vote
1answer
176 views

MonoGame tick cannot go lower than 16ms

I'm trying to build play with MonoGame and I'm trying basing this regarding the GameTime steps. In my main Game class that is being run in the main entrypoint of my project, I'm doing something like ...
0
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1answer
53 views

How can I speed up the shapes drawing on high-density devices?

I have a game that should draw many shapes on the canvas and in every frame these shapes position will change, the game is running smooth but after adding more shapes some jerk arise and it drops some ...
3
votes
1answer
579 views

Render Stutter - OpenGL or loop timing?

For some time now i have no been able to pinpoint the nature of the rendering stutter shown above(by not clearing the screen, not using SwapBuffers and drawing only to the front buffer). See the big ...
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1answer
129 views

Use two Gameloops instead of one

I have been thinking about this a lot and don't know if i'm thinking incorrectly. Most games have one game loop that can be split into three functions. A basic game loop would look something like ...
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0answers
105 views

Making games on Structure programming language c or c++ [closed]

I am learning structured programming language C. I know about data type, control statements, loops, arrays, strings, functions, pointers, structures and STL. My question is, if I want to make game ...
2
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2answers
161 views

Time based events separate from the game loop

How can set up time elapsed based events separate from the game loop? I want the character to heal over real time rather than per cycle of the game loop. How might i do that?
0
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1answer
199 views

How to sleep for the desired duration between game loop iterations?

My game loop below doesn't sleep as log as it should. The delta value always ends up less than 1, when it's supposed to be 16.6666 or close to 16.6666 ...
4
votes
1answer
1k views

Java Game Loop Efficiency

I'm quite new to java. I was watching 2 video tutorials on how to make java game and read a couple articles about game loop. However, I'm still confused about how game loop actually works. The ...
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1answer
129 views

Game object appears to accelerate too slowly

thank you for checking out my issue! I am trying to develop a game in java, but I have run into a problem. I would like to keep the physics as realistic as possible, so I am using a fixed time-step ...
11
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2answers
3k views

Which of these two codes are 'better'? Making a local variable or a class variable?

Im making more games and asking more stupid questions. Hopefully this one is very brief. I'm making a very basic class which just moves a Player object by applying force to a rigidbody, but it got me ...
0
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1answer
83 views

How do I deal with closely coupled systems in a game engine?

Let's say a game engine had a central game class as well as multiple systems (as objects) that are stored within it. These systems (such as input, rendering, sound, etc) would also be updated by this ...
0
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2answers
78 views

How to set up a key press to start the game

I've tried to create a simple start menu for my game which informs the player to press a key to start the game but the problem is that it works only if the key is pressed all the time...i'm not sure ...
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1answer
218 views

Getting multiple inputs in C++ simultaneously using kbhit() function

I am using Turbo C++ to make a game using the graphics.h library (I know it's a bit old). In this game, the player can move left, right and they can jump using A, D ...
5
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1answer
154 views

How do games implement client/server frame rate?

Do games have a frame rate at X fps that updates logic and also renders? Or do games update logic at a much slower frame rate than rendering? Let's say 20-25 fps for logic, and 60+ fps for rendering....
1
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1answer
46 views

Can I implement allocation-free time releated event scheduler via pure C#?

I read some article about a gameloop, based on Actor system. (yes, it is Development & Deployment of Multiplayer Online Games Vol.2 by 'No Bugs' Hare) Here is pseudocode. ...
0
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1answer
19 views

In random loop button dont work properly

I have this code to add 10 point if someone click the button and change the question. But it returns 10 point every time. I want to make it 10,20,30,40... etc. ...
0
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1answer
46 views

Java advice (Printing game data to the window)

Does anybody know the best method for taking game data and setting up java to read the data then print it to the window... of which you want the game loop to start the game and read the data... Here ...
0
votes
1answer
90 views

Should I send the elapsed time to the fixed step update function from my game loop?

I am making a basic game loop based on this article. This is the nearly final version: ...
7
votes
2answers
3k views

OpenGL - How come drawing sprites takes so much performance

I'm wondering how drawing simple geometry with textures can eat up so much performance (below 60fps)? Even my good graphics card (GTX 960) can "only" draw up to 1000 sprites smoothly. The textures I'm ...
0
votes
2answers
149 views

Latency issue on multiplayer game networking

I am currently writing a 2D top-down shooting multiplayer game using Java. I have a game loop at the client-side that does the following in order in each game tick (The client is running in a tick ...
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vote
1answer
138 views

Box2D simulation running slower on lower FPS(even when the desired FPS is lower than the actual)

I´m playing around and trying to make myself an easy platformer using the Box2D physics, before that I was not using it and was using my own physics implementation(just simple movements with timestep)....
0
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2answers
130 views

How to handle component-based objects in a game loop?

I've been writing my own game engine and I was wondering the correct way to handle my game objects. Each game object is different. The only thing they have in common is a set of operations to handle ...
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votes
1answer
173 views

Is my frame rate being calculated correctly?

I'm having a long headache (which may not be that complicated) with this frame rate thing. I already tested several frame rate algorithms, lastly I tested this here and they all gave something strange ...
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0answers
288 views

Help designing Board game using LibGDX

Hi i'd just like to preface this by saying i'm new to game development and currently learning the ins and outs of libGDX. I want to create the board game scrabble however i'm having trouble figuring ...