Questions tagged [java]

Java is both a popular object-oriented programming language and runtime environment which allows Java programs to run unchanged on most hardware and software platforms.

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Black screen when sizing JFrame/JPanel with Toolkit.getDefaultToolkit().getScreenSize()

I am working on a game engine. ...
Grinding For Reputation's user avatar
0 votes
3 answers
52 views

Reduce processing time of image to shape

I'm making a simple game engine using Java and have found a major issue. To create accurate collision detection I decided to convert a transparent image into a ...
Grinding For Reputation's user avatar
2 votes
1 answer
80 views

Skill Class design : How to deal with multiple criteria

I'm planning to make a Class for RPG game's character skill. But the problem is that the skills need to be classified by multiple criteria. Below are the criteria for skills. Independent / dependent ...
evol1102's user avatar
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37 views

How to save score without resetting to 0 between Game Scene and Pause Scene?

I'm currently working on a LibGDX Java Game Project inspired by the Space Invaders game where I have created 2 Scene Classes: LevelScene and ...
TechGeek49's user avatar
0 votes
1 answer
34 views

How to to make KeyListener do an action only once per press, even if the button is held down?

I'm trying to make a turn-based game where my character is allow to move in any direction, but only by as much as the dice rolled allows him. My problem is with how I'm using ...
Silver Lilies's user avatar
1 vote
0 answers
51 views

JBullet - Shoving around objects

Sometimes in video games the players can walk up to certain objects for example boxes and barrels and shove them around. How can I recreate this system? What function do I have to use to apply force ...
Nagy Lala's user avatar
2 votes
1 answer
142 views

Programming Singletons vs Static classes

I've been developping a 3D app for some time and I remember at some point I started to need to pass data arround in unrelated areas of the program, where it wouldn't make much sense to pass them ...
Gyoo's user avatar
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2 votes
1 answer
154 views

GLSL wrong data read from attribute

I'm developping an OpenGLes 3.0 app with Java and I started writing the shader code. For some reason, it seems to mix up the attributes data locations and I don't understand why. Here's the code : ...
Gyoo's user avatar
  • 176
3 votes
1 answer
690 views

How to store condition dependent item information in JSON

I'm developing a RPG-game. After searching about various ways to save item information in RPG-game, I determined to save information in JSON files. The problem is that in my game, some equipment's ...
evol1102's user avatar
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21 views

Launch4J wrapped jar produces JNILibLoaderBase errors

I created an executable jar file bundled with JOGL, then wrapped the jar into a windows executable using Launch4j in order to pass runtime java parameters. If I run the jar from a command prompt I get ...
JonB's user avatar
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1 vote
0 answers
61 views

LWJGL3. A strange graphic artifact of OpenGL 3.x

I work in java with lwjgl3. I came across a strange artifact, the source of which I have not been able to determine for a very long time. I'm drawing a large surface. When I approach this surface and ...
alfabouh's user avatar
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I use skin composer, I want to create scene in scene composer, I can't add text buttons even though I created text buttons

I create text buttons, add every image and font, but it's still disabled when I want to add button in scene composer. I'm probably doing something wrong.
p3tition's user avatar
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30 views

How do I go about making an enemy change depending on where the player hit it?

Currently coding in java, using cocos engine, making a low-poly game with a world which changes based on what the player does, hopefully including the aspect of an enemy changing when the player hits ...
AussieNote's user avatar
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0 answers
89 views

Brick Breaker - Adjust ball's collision angle without affecting speed

I'm working on a Java Brick Breaker game, and it's functional so far. However, I'm facing an issue with collisions. Currently, when the ball collides it simply reverses its direction. I want to ...
Zappiermike's user avatar
0 votes
0 answers
22 views

Blinking JLabel for Wordle-like game?

I would like to implement a blinking effect on a JLabel in a wordle knockoff I'm making. I think this will involve using javax.swing.Timer but I'm not sure how I ...
CodingNinja's user avatar
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0 answers
39 views

Why is my font not found?

Trying to follow this tutorial with using toasts in LIBGDX: Libgdx - notification popup (something like Toast) - on both Desktop and Android But i get this error when compiling: ...
Jonasoos's user avatar
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27 views

Bone Indices from GLB Files

ChatGPT and I wrote a GlbImporter for a simple 3d engine written in Java. I can load any Glb model and extract and apply its diffuse textures. Extracting the bone animations is a different problem ...
Susana Hewitt's user avatar
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0 answers
27 views

Image fragments when moving up and or left

Not entirely sure how to resolve the issue as I am quite new to programming, however this seems to be my last option in terms of finding an adequate solution. EDIT: https://streamable.com/0i92xq - ...
jah's user avatar
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1 vote
0 answers
250 views

Realistic bouncing ball physics

I am trying to implement realistic physics for my game plinko. As of now i only implemented the inversion of the velocity and the distance between both objects. ...
Jonasoos's user avatar
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0 answers
34 views

How can i translate this code into java?

My only problem translating the code from this question/answer is the Vector2 method. In the web i could only find this replacement (Vector2f). But i can not import it : can't resolve reference. Also ...
Jonasoos's user avatar
0 votes
1 answer
48 views

Modifying LibGDX vector2's seems to do nothing

I have a piece of code similar to this: Vector2 test = new Vector2().setLength(20).setAngleDeg(45); But when I'm trying to print its contents (such as ...
big papa's user avatar
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0 answers
43 views

LWJGL Shader not displaying anything to the screen

My basic shader program isn't displaying anything to the screen. Please Help! Here's my code: ...
pcarroll17's user avatar
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0 answers
50 views

Only first line/column of level text file gets loaded into tile map

I'm trying to make a map using a text file, but it only does the first line / column and not the rest. I know the problem is in getTileImage. ...
Nobodyis_here's user avatar
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0 answers
35 views

Having trouble creating an unbound game using FXGL

I am trying to recreate a game like Splix.io using FXGL, I have implemented the logic of the game for one player and it works. And for my game window I am using a 800*800 window. My problem is my game ...
Pourya Aliannejadi's user avatar
0 votes
0 answers
89 views

How do I move a camera around a tiledmap in Libgdx?

I have the following code for rendering a TiledMap and moving around a Texture representing the player on top of it and the camera is setup to follow the texture around. However, when I try to move ...
Sagnik Dutta's user avatar
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0 answers
52 views

How would I make a self updating launcher for my game in Java?

I have a game I am working on, and I want to make a launcher for it. I am having trouble finding information on how to do it in Java (my video game is programmed in Java, so I do not want to use C#, ...
KSPortalcraftDev's user avatar
-2 votes
1 answer
61 views

why when i press "A" i go up but its supposed to go left?

...
Nobodyis_here's user avatar
0 votes
0 answers
51 views

Jagged peak artifacts on terrain

My terrain rendering shows these jagged peaks along the edges of some hills: Why do these occur, and how can I fix this? Here is the code I use to initialize my surface and draw a frame: ...
Ramazan ŞAHİN's user avatar
1 vote
2 answers
142 views

Is it appropriate to design heroes as items in game development?

If you were to design a multi character game like "Genshin Impact", would you design the character(hero) as a item? What is an item: in our game design, an item is an object within the game ...
Criwran's user avatar
  • 111
0 votes
0 answers
41 views

speeding up image manipulation for shadows- engineless

so my project is a ray-casted lighting system thats trying to implement soft shadows. the ray casting is working currently, so right now my focus is on performance of the soft shadows portion. i use ...
Potat.OS1's user avatar
0 votes
1 answer
133 views

Unknown enum type when modding Minecraft recipes with CraftTweaker

I want to make some new Recipes with CraftTweaker, which uses machines from the Create mod (I'm using Life In The Village 3), but I have the following error in my scripts: ...
Lucas Plt's user avatar
0 votes
1 answer
162 views

How to improve performance of LiBGDX Android app?

After creating a few bodies and a map with collisions, the app performance clearly goes down. However, RAM and CPU don't seem fully stuck, but the game experience is horrible nonetheless. GameScreen ...
ognevo's user avatar
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125 views

Good design for player input handling in 2d game

I am working on a java 2d game. Keeping things short, I'd like to improve my current input handling. Basically the player can move up/down/left/right with WASD, perform an attack with mouse left click ...
magister's user avatar
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0 answers
98 views

Canvas vs JPanel in game development?

I'm new to Java and I have seen that some games use Canvas and some use JPanel as the class that Game class inherits from. Here is a sample project but it's a bit old. I am not sure what should I use ...
Zielony XD's user avatar
0 votes
1 answer
309 views

How do I implement Minecraft Forge Config GUI (1.8.x)

So I have recently been working on a minecraft 1.8.9 forge mod, just to play around and see what there is (eventually I am planning on making a utilities mod with versions for 1.8-1.19, which is why I'...
MiSt Rocky's user avatar
1 vote
0 answers
32 views

Android TMX library no tile animation

Did anyone use this library? I am wondering if this library has a possibility to display tile animation? When I try to show my "abc_main.tmx" map (created in Tiled application) the tile with ...
mnietuniema's user avatar
1 vote
0 answers
96 views

Animate buttons sliding in

I am developing my first libGDX game. I want to animate the buttons on the stage, so they transition into view instead of just popping into appearance. For example, each button should slide in from ...
Zerg's user avatar
  • 11
1 vote
0 answers
98 views

How to get the correct display mode refresh rate as a float in Java?

The following example prints 59 on my system, because the return type of getRefreshRate is int. ...
ceving's user avatar
  • 111
0 votes
1 answer
357 views

How to enable V-Sync in Java?

I have used the BufferStrategy, but my code runs still way too fast. xrandr reports that TearFree is "on" and the ...
ceving's user avatar
  • 111
1 vote
0 answers
59 views

i have a strange bug with collision, is there any way around this or do i have to pick a different method?

so lately i've been learning about abstract classes and interfaces, and i saw a neat yt video about falling sand games (think Noita) so i wanted to take a crack at it as some particles share a ...
Potat.OS1's user avatar
1 vote
2 answers
265 views

Why is my negamax algorithm returning negative infinity scores?

I'm currently in the process of writing my own chess engine in java and am having a little trouble with negamax. I've opted for negamax since its easier on the eyes and reduces the number of lines of ...
AF_'s user avatar
  • 11
2 votes
1 answer
46 views

How to organize game entities that are stored inside other entities?

In my GPS based game, there are certain structures the players can build that store units. For example, airbase structures store aircraft objects. Currently, the way I have this organized is the ...
user204468's user avatar
1 vote
0 answers
44 views

How to update the version of Box2D used in AndEngine?

I need help to use an updated Box2D library where the current version is > 2.3.0. I am unable to find a compatible library and do not know how to compile one for use with the Java Native Interface (...
Ankit Agarwal's user avatar
0 votes
0 answers
65 views

Eyedropper tool within Minecraft Java

I'm trying to make an eyedropper tool (one where it picks up the color the tool is being pointed at) for a Minecraft mod that uses Forge on IntelliJ IDEA. I already have the item/tool ready and able ...
leguchi's user avatar
  • 101
0 votes
1 answer
357 views

Registering recipe for Minecraft with Forge on IntelliJ

I'm using Forge on IntelliJ IDEA to make a mod for Minecraft, and I think I am stuck on where I need to register a recipe for an item. How I got to that idea: I tested it out and everything worked. No ...
leguchi's user avatar
  • 101
0 votes
1 answer
105 views

Where am I able to find the things that were imported using Java on IntelliJ?

I am trying to build a Minecraft mod with Forge on IntelliJ, and I am wondering where I can find the parts that are being imported. For example: ...
leguchi's user avatar
  • 101
0 votes
1 answer
103 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
0 votes
0 answers
55 views

Is there any game that can I make as a project of programming fundamentals in java under 500-1000 lines? [duplicate]

I'll be having my semester project of programming fundamentals in java. I'm a complete beginner and don't have much ideas. Since I'm fond of game dev I am thinking of making any logical and text based ...
Abdul Moiz's user avatar
0 votes
0 answers
151 views

Fix stuttering with fixed time step and interpolation

I am trying to fix my stuttering by using a fixed time step, but I seem to be missing something because it is not working. Can someone look at this and see what is missing? ...
wtcl's user avatar
  • 1
0 votes
1 answer
211 views

How will I make my character jump only when it is pressed once

I have scoured through the internet to find a solution of this but this is the only solution that I could find but it cancels the ...
dechire's user avatar
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