A game library which enables cross-platform game development in Java, with support for Android development and desktop development. It makes use of OpenGL for portability.

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Cylinder scrolling / wrap-around world using shaders?

I am making a 2D game using OpenGL ES 2.0 (libgdx), where the world will wrap-around itself on Y-axis. Apart from implementing the "modulo" method in my rendering code, I'm wondering whether it's ...
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74 views

Need to join 2 bodies via weld joint but not on center of mass

I have successfully join 2 bodies via weld joint , but my problem is I want to join corners of bodies not on centre of mass. Is there any way to achieve this? Above image consist 3 polygon body that ...
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129 views

LibGDX drawing portion of tmx map

I am trying to make a tile based game in LibGDX and I have run into some problem. In earlier versions of LibGDX you were able to draw a certain section of a .tmx map instead of a whole and even a ...
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429 views

Libgdx: scrolling background for preview screen

Good day, I have been coding for quite a while now and I'm at an certain point where i am having difficulties on solving something. I've been creating a preview screen which contains the following: ...
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180 views

How to use HyperLink with Actor in Libgdx

I am making a quiz game using LibGDX. I want it to redirect to a website. I am using classes like Text and Label that extends Actor to write text using a bitmap Font. I have no idea on how to provide ...
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509 views

Create a touchpad-joystick using texturepacker2

I am adding a touchpad control to my game, using TexturePacker for loading images into the image-atlas. I have followed this tutorial to add the joystick. Everything is the same apart from the loading ...
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473 views

Libgdx Particle Editor: Blank UI elements

How can I get Libgdx Particle Editor to run properly on my 32-bit Windows 7 machine? When I run it, the UI elements are blank like this:
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2k views

TileMapRenderer in libGDX not drawing anything

So I followed the tutorial on the libGDX wiki to draw Tiled maps but it doesn't seem to render anything. Here's how I setup my OrthographicCamera and load the map: camera = new ...
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186 views

Blending effect on textures

Hi i am trying to build screen animation like flickering, interlace, color separation similar to old style malfunctioning Amiga screens. The intended effects are shown in this video. I am using ...
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170 views

Parenting Opengl with Groups in LibGDX

I am trying to make an object child of a Group, but this object has a draw method that calls opengl to draw in the screen. Its class its this public class OpenGLSquare extends Actor { private ...
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31 views

Stopping Actor tap/click event from propagating

I've been struggling with this for hours now and have read posts, docs and libgdx sources to better understand what's happening, but I still can't make any sense of this. I want to accomplish ...
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12 views

Scene2D: Dialog show with animations Sequence is also applied to the Dimming Background

I have issues with the dimmed Stage background when showing a Scene2D Dialog with Action Sequence (animations). The problem is that the animations are also applied to the dimming background and the ...
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14 views

DynamicBody diving into StaticBody

In my game I want a DynamicBody to dive down into a StaticBody. I set up both bodies. At the moment they are colliding. How can I get my DynamicBody to dive down? Is it going to work with this ...
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12 views

LibGDX - How can I write my own custom layout (E.g. table layout)

I am currently developing a game and I got to a point where I realised I should use a layout for my screen, as it is going to get messy if I don't (both code and looks wise). Thing is, I do not want ...
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16 views

Box2d Coordinate System

In the game I'm trying to code I got to have two bodies. One StaticBody and one DynamicBody. I want to have the DynamicBody on top of the StaticBody. Somehow all I get is this: Is it possible that ...
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18 views

libgdx html part in browser only shows libgdx logo

I am trying to run HTML part of libgdx. I followed its official guide https://github.com/libgdx/libgdx/wiki/Project-setup,-running-&-debugging I have installed GWT plugin, I did GWT compile and ...
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46 views

Libgdx texture bleeding in tile map

So I am making a game in Libgdx using an isometric tiled map but when I set the texture filtering of the tiles to linear, black lines show up between all the tiles. This is caused because each tile ...
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28 views

LibGdx - APP42 Cloud API Java SDK - weird crash at insertJSONDocument

I'm using App42 Cloud API for saving user data. I created app in App42 console, added the keys in my code. But when I try to upload the data to the cloud, the app crashes. try { appStorage = ...
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18 views

Design a grid with draggable Actors

A quick overview about what i want to do. I want to make a grid 5x5 centered in the screen in which each cell can contain an Actor that can be moved in another cell. An Actor can be of any type, ...
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43 views

NullPointerException in android.app.Activity.onCreate(android/app/Activity.java:874)

I'm trying to get libGDX 1.6.1 to run on Android via Ruboto. So far, I: Generated a new libGDX app using the app generator Got the desktop app to run (Java) Got the android app to run (Java) ...
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31 views

Box2D collision between dynamic body

I'm implementing Box2D for my 2d top down LIBGDX game and i have some struggle with two dynamic body. Currently, my two bodies are created that way : BodyDef bodyDef = new BodyDef(); ...
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28 views

How to “pause” stage actors listeners

I have a problem with multiple stages and listeners in libGDX. I have GameScreen with gameStage (contains game elements), uiStage (score label and pause button) and pauseStage (resume, restart and ...
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37 views

3D Model is existent, but not rendering in LibGDX

I'm trying to render a simple model in libgdx. I tried ObjLoader, G3DLoader, and Asset loading but nothing works. I know the Model is actually there because when using a different batch besides the ...
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20 views

Raycast trouble

i'm having some trouble with the RayCast. I'm raycasting from the player position and my mouse position. I have this situation : http://i.imgur.com/h7iplnY.png (the white line is a representation of ...
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29 views

LibGDX : Textfield input type

I want to change TextField input type . When I click on the textfield the android keyboard appears with all the symbols , but I want only numbers and dot (.) . TextFieldStyle textFieldStyle = new ...
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45 views

LibGDX with Parallax Camera, unable to accurately select objects

So, basically I borrowed the ParallaxCamera test that LibGDX provides and got the camera set up rather nicely. However, I noticed that when I specify a speed other than 1, my game objects shifted ...
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19 views

LibGdx scaling properly

I've mad use of view ports and they do what they say they do, but the problem is I'm not able to get it to scale the whole world with it. The game is for android which it looks nice on but desktop is ...
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29 views

Does the LibGDX AI extension work on IOS?

Does the LibGDX AI extension work for IOS? Here it does't show how to add it to the IOS dependencies. I don't have an IOS device but I want to release my game for IOS. I just don't to finish my game ...
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25 views

TiledMap blocks makes Animation invisible

////////////////////////////////////////////////////////////////////////////////// Got it fixed. Thanks to anyone who tried to help me. New Code: mapManager.render(); ...
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25 views

Filling the viewport area of a orthographic camera with an image (libgdx)

So im trying to get the whole area of the viewport and then use the coordinates to draw images in the camera's viewport. So if the camera moves I can fill it with one image the length and the width of ...
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20 views

Scaling/Zooming a SpriteBatch

I am working on my first game with LibGDX and coming from ActionScript3 I am used with the possibility of scaling things more or less the way I want. I know it works different in LibGDX, but I can't ...
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33 views

Libgdx polygon ratating

I'm using polygons for collision detection. Here is the code: poly = new Polygon(verticies); poly.setOrigin(100,100); poly.setRotation(45); renderer.setColor(Color.GREEN); ...
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20 views

LibGDX : Scene2D ScrollPane

I want to create a list of buttons with ScrollPane , but I cant create a ScrollPane . In the constructor method in the examples Skins are used (.atlas , .json files) but how to create these files? ...
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11 views

Libgdx : how to attach actor to a rotated group

I have a group actor with a circle image .png and then I spread small circles around surface of this group, I mean circle on angle 0 and circle on angle 60 and so on using the math equation: ...
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34 views

Problem loading particle effect

I am trying to load a particle effect, but I get an error when libGDX tries to load the image file for the particles. Couldn't load file: - Image Path - The particle effect file itself loads fine. ...
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44 views

Use libgdx box2d for dynamically generated top down map

So, I've already found some information on how to use box2d and tiledmap together. Since I want to generate my top down map (100 by 100 tiles), I thought about only using box2d. The tiles would be ...
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36 views

LibGDX , Box2D body Mass Center

I am creating complex bodies using this editor. But the mass center of the body is not in the right place , when I apply force to it it begins rotating . So I am confused why is the masscenter in the ...
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36 views

LibGDX strange status bar in background [BUG]

I released an app and I noticed that some devices has a strange "bug" which I don't know if it's caused by Android, me or LibGDX. That bug is related to status bar, normally app let you see the bar ...
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309 views

Libgdx Music error QCMediaPlayer mediaplayer NOT present

Problem solved with music = Gdx.audio.newMusic(Gdx.files.internal("song.mp3")); I am looking for music implementation in my app with LibGDX. I saw the guide provided in LibGDX documentation but it ...
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76 views

Building levels for use in LibGDX

I'm working on a 3D shooter game using LibGDX and was winding how I would go about building levels that I could import into my game easily. I'm using Blender as my modeling software and I've heard of ...
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83 views

Why does physics interpolation give me periodic jumps/flickers?

I have seen this question but it didn't solve the problem. I have followed the same steps as in this article. What I notice in my Android game is that my interpolation alpha (or fraction or ...
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38 views

How to zoom and scroll in libGdx?

I am trying to both A.) Pinch zoom my game scene and B.) Move (scroll) my game scene but I have not found many examples. I learn more by examples than by reading API documentation (although I am ...
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79 views

How to smoothly display opponents in realtime multiplayer game

I'm implementing a small-scale multiplayer racing game. As of right now, the client sends updates to the opponents on a fixed interval (or as fast as possible), containing location on the map etc. ...
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33 views

Libgdx draw random wavy lines (similar to sinx)

I am looking for drawing a wavy road. It must be random and I have to add an hitbox on its bound, how can I do it? I want drawing red objects Example :
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40 views

How to draw square composed of four triangles ? ( libgdx )

I've a case in which I need to draw square composed of four triangles like in the photo bellow : The triangles parameters are stored in the JDBC , I know how to draw shapes in Lbgdx but this kind ...
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257 views

Android Studio libgdx multiplayer

Does anyone know if it's possible to setup a multiplayer game using libgdx in Android Studio? I've been trying to convert my game to multiplayer using all kinds of tutorials on libgdx & ...
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55 views

How to get GestureDetector to work?(Problem with GestureDetector class)

I am trying to write simple program which would get input from user by swiping in four capital directions. I'm extending GestureDetector.java from libGDX and overriding fling method, but no matter ...
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65 views

LibGDX Android Unclickable buttons on Dialog

I'm using the libgdx for a simple pong game only for Android and I'm trying to show up a dialog when the back button is pressed. My activity implements Screen, InputProcessor and in the keyDown ...
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50 views

Import Unity 2D objects in Libgdx

I'm using Libgdx to do some simple home projects. I'm trying to make a simple 2D game with Box2d using R.U.B.E as editor. I create a 2d terrain in R.U.B.E now I want to create the terrain texture. I ...
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32 views

Shaperenderer not showing any shapes

I'm trying to use the shape renderer in LibGdx, but I don't see anything. I followed the docs as well, but nothing appears. Is there something wrong with my setup? public class MyGame extends ...