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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onHold input libGDX

I want to have onHold or onTouch input for my game. So as long as the user touches the screen something happens (a car moves) and when he stops touching the screen it stops. How do I do that? I want ...
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Actions.fadeOut doesn't work when called on stage root

I'm trying to fade out my screen when a button is pressed, but the following code doesn't work: public void switchScreen(final Game game, final Screen newScreen){ stage.getRoot().getColor().a ...
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2answers
83 views

Is it possible to use Java as a scripting language in unity? [duplicate]

I wonder if its possible to use Java as a scripting language in unity to create a basic 2d game?
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2answers
711 views

Libgdx box2d crashing

im making a game in libgdx which i having a bunch of circle bodies floating around in space and when the player's body crashes into another body, that body deletes and creates two smaller bodies ...
2
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1answer
74 views

Anti-Aliasing Problem

So, I was annoyed by how the HUD for my GameState was very pixel-ated and I wanted to change that through the use of anti-aliasing. However, it works with a small exception: It adds all these lines ...
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32 views

How could I add XBox 360 Controller handling support to my game?

The title says it all. I'm making a 3D Open World game with OpenGL and LWJGL in Java, and I really need to move in several angles to fully feel inside the game. The problem is that I couldn't find any ...
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2answers
2k views

SQLite in libGDX

Does anyone have an example of how I can use SQLite in libGDX? I have a class in my original Android code that allowed me to easily access a database but I can't seem to find anything equivalent to ...
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1answer
84 views

How does one structure a Player GUI

I am using Java and the Slick2D library. I've been testing around with ways to develop a Player Graphical User Interface (GUI) (to show armour, items picked up, weapons equipped, etc). The one ...
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0answers
17 views

Libdgx and Overlap2D export settings for Android

So I have a problem when exporting assets from Overlap2D to Android Studio project location. When setting up libgdx I set the project to be for desktop and android and selected Overlap2D extension. ...
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2answers
620 views

Can't work with universal tween engine while having added it to gradle

I'm actually developing a game with libgdx and I'd like to create a splash screen. To do this, I must use the Universal Tween Engine. To add the Universal Tween Engine, I followed the instructions of ...
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3answers
106 views

How to scale bitmap font without having it pixelated

How do i increase the size of a bitmap font without having it get pixelated, in libgdx?
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6 views

LibGDX Child node is not following animation

So I'm trying to place a golf club as a child node of the hand of our "golfer", so it follows the animation the golfer has when the animation is invoked. However, once I hit "Check Swing" (the button ...
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25 views

Making my game scalable? [duplicate]

I'm quite new to games development and just recently I've made my first Java platformer. I've been using Graphics2D to draw my spritesheets, but I've heard this method isn't very good in terms of ...
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1answer
69 views

Network interpolation wont work for local player

im currently developing a little duengon crawler. It should have lan multiplayer and it works great but i think im sending to much packets. Should i send packets over network, when a player moves in ...
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0answers
64 views

Libgdx stops all sounds when there are lots of sounds

I'm making a 2D game for Android using Android Studio with Libgdx in Java. I have a class, called SoundPlayer, which holds an ArrayMap. The key is the name of the sound file and the value is the sound ...
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0answers
68 views

Multiplayer through blocked Firewall Ports?

im currently trying to develop a little game. I thought it would be a great idea to implement coop multiplayer, only lan. So i took kryonet and created a server. On my home wlan it works great im able ...
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0answers
64 views

How to update projectile trajectory point?

I am a new game developer, I am making a game, but I have a problem, I don't know how I can update my trajectory point in OnDraw method. Could anyone please help me? Thank you! Here is my code: ...
5
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2answers
624 views

Main game objects as static

I'm making a game for Android using Android Studio with Libgdx in Java. In my game there are main object like Screen, ObjectFactory, SoundPlayer, Painter (Responsible for drawing) and a few more. 'til ...
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31 views

TiledMap Safe Area for different screen resolutions

I'm creating a Tower Defense game using libGDX (w/ scene2d) and TiledMap. I've been reading extensively about viewports and how I can better manage various screen sizes. I want my Tiled Map to take ...
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2answers
58 views

OpenGL [LWJGL3] - Matrix4x4 not rotating correctly

I tried today to make my own matrix4f class because of that LWJGL 3 does not include a class for it. So I arrived at rotation and it does not seem to work. I tried using the old util from LWJGL 2 and ...
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1answer
50 views

Simplifying Object Factory

I'm making a game for Android using Libgdx with Android Studio in Java. In my game, I have a class called ObjectFactory which has a method createGameObject(int objectType) which receives an integer ...
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vote
1answer
109 views

LibGDX - Rotating sprites and still keep the positioning between them

I've been struggling with a problem regarding rotations and relative positions between sprites (in this case, the sprites are just lines) - a bit off-topic, but should i be using the ShapeRenderer ...
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0answers
33 views

Defining camera/view space

Im working on expanding my camera class, but having trouble defining camera/view space in the manner of this diagram: What Im trying to achieve is to define the camera as a true object much like a ...
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1answer
52 views

How create/draw faded circles in Java

How do I create some circle - like the one on the image - in Java, and in various colors? I would like to make more of these circles to fly from specific position to random direction.
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AdMob Banner appears 960x150 instead of 320x50 in libGdx - what's wrong here?

I am a bit helpless with this strange effect from AdMob. AdView is instanciated in code and so is the relative layout and libGdx view. View view = initializeForView(Engine.createEngine(G....
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2answers
50 views

OpenGL perspective matrix far plane

The near plane clips at exactly the value I set just fine but instead of clipping at 1000 the far plane clips at 1. Here is the code for the projection matrix: public static Matrix4f perspective(...
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0answers
39 views

Best way to create defence(withdraw) algorthim libgdx?

I have created user body and enemy body. Enemy body uses the steering behavior created by gdx AI. User body have it own control inputprocessor. World doesnt have gravity. Enemy body arrives the user ...
3
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1answer
165 views

Simple way to serialize save game data whilst allowing for future features

Is there a simple way to 'serialize' the game data of my game, but protected it from being unloadable if I add new fields? I have all the data in a single class, GameData.java, and I want to avoid ...
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3answers
310 views

What caused rotation in exported blender model to jMonkey? (OGRE)

First off, I am very new to jMonkeyEngine 3 and still learning. Not exactly sure what could be causing my snowman to have already been rotated before import. I created him in blender and it was facing ...
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1answer
43 views

Collision Detection Unresponsiveness

I'm creating a simple jumper game in Libgdx that makes the player jump over obstacles in order to stay alive. The only problem is that the collision detection for when the player just touches the ...
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0answers
25 views

libgdx - Math reflection to the correct direction

I'm using a simple reflection system, but the game doesn't work how I want. How should this game work? The game has two boxes. A red side and a black side. The player should only sort the bombs to ...
0
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1answer
38 views

Libgdx + Box2d working with 2 cameras

Recently I have read that you can work with 2 cameras whenever you involve Box2d, which only works in meters. In my Renderer class, I receive all the entities in the game and then draw them. I work ...
0
votes
1answer
156 views

Detecting collision with walls (is this a good solution?)

I'm trying to make the collision smooth (it must open the animation, but not move the character). I've implemented 'fake positions': int step = 20; fake_left_x = x-step; fake_right_x = x+step; ...
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1answer
49 views

Libgdx Sprite rotation around specific point

I made complex dynamic body that rotates around other body that is static. It works perfectly, however I got messed up with sprite position on that body. Here's what I have now and here's what I ...
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1answer
38 views

Libgdx shaperender within a circle as limitter

I encountered a problem, where my small entities would be rendered out of the bounds of my radar. At the time I solved it like this: ensure, that the object would be within the circle, but, that's ...
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0answers
53 views

Why is my tiled map moving when I move the camera in libGDX?

I use LibGDX. I have created a map with Tiled Map Editor and loaded it to the game. Everything else is working well, but when I move the camera, the map moves: it jumps or floats. My code: public ...
0
votes
1answer
70 views

SceneGraph in Entity Component System, Transformations

I'm recently learning entity component systems, and started implementing it into my test engine, however I'm having an issue integrating this with scene-graph, which I'm trying for the first time. ...
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0answers
83 views

Java Libgdx Attaching Sprite to Box2D Body

So I am working on programming a java 2D platformer for fun on the side and I have a rendered TMX level and a box2d body (just a circle shape) that I am currently using as my player. All the controls ...
3
votes
1answer
147 views

How do I get A.I. that follows a list of movement commands to move smoothly in a tilemap based game?

This is for a school project so it's not intended to be sold/fun/or a complete game, rather just a demonstration of stuff we've learned without resorting to frameworks and stuff. My ai agents choose ...
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0answers
56 views

LibGDX - black bars, FitViewport and drawing background

actually I'm creating game in LibGDX and i have few problems. I'm trying to solve resolution and aspect ratio problem by using FitViewport but i want to dispose black bars which occur when resolution ...
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0answers
54 views

libGDX text doesn't appear in TextField

A game I'm working on has libgdx's TextField. They work fine in every instance I've used them, however on a play tester's phone he says no typed text appears in the box until enter or space is ...
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0answers
14 views

Move ball through a direction angle in android canvas [duplicate]

I am building a simple game in android. I am successful in first step where I draw a ball in canvas in touch point. Now I am trying to move it from an initial point A (center) through the touch point ...
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0answers
41 views

How can I simulate a basketball throw in LibGdx box2d?

So I want to simulate a similar throw like in the game Bouncy Basketball. Do i need to create a body and attach another body on it that would be the arm and then how would I apply force/impulse to the ...
1
vote
1answer
32 views

Circular Movement

if (Keyboard.isKeyDown(Keyboard.KEY_D)) { if (i < 360) { setX((float) (groundState.getX() + groundState.getRadius() * Math.cos(Clock.delta() * i))); setY((float) (groundState....
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votes
1answer
43 views

What does the TextureRegion.flip() method do?

I'm learning libgdx and don't understand the purpose of parameters passed to flip(boolean x, boolean y). For example, I have code like this: texture = new Texture(Gdx.files.internal("data/texture.png"...
2
votes
3answers
131 views

Accelerated movement in a specific time to a specific point

I am trying to move my sprite in a specific time to a specific position while using frame-independent or time-dependent movement. My sprite is also accelerated every frame to simulate gravity. I know ...
5
votes
4answers
878 views

How to avoid duplication using client-server model

I am using a client-server model to write a multiplayer-capable game (in Java). Currently the clients and the server are using the same code to run the game logic, in order to enable client-side ...
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0answers
57 views

Slick2D fails to load small textures

I'm trying to load a small 32x32 png texture using Slick2D, however it doesn't seem to render correctly. What's odd is that larger textures do load correctly. The 32x32 texture I'm trying to load: ...
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1answer
60 views

Libgdx: more efficient way of using Vector 3?

I currently use if(cam.frustum.pointInFrustum(new Vector3((float)posX, (float)posY, 0))) To check if my sprite is in the camera's view. I have to make a new Vector3 every frame wich is very ...
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vote
2answers
109 views

Scale smaller resolution to full resolution libGDX

Short question about the scaling in libGDX. At the moment i have a application with the resolution 480x320. I define this in the main method of the desktop launcher. My whole application is now ...