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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drift/skid in topdown racer with libgdx/java

I'm trying to do a simple top-down racing game and is struggeling to get the steering right. At the moment I'm using a very simple steering and want to add some drifting to the car. I've read some ...
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16 views

LibGDX with GWT ignore source file changes

I'm using LibGDX with GWT to create a web version of an app that runs without problems on the desktop, Android and iOS. However, the HTML version of the app had a few problems with constructs ...
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18 views

libGDX TextureRegion drawing weird when scaled

Having a weird issue. I have a Texture with four frames of a sprite Animation. Each frame is loaded as a TextureRegion. Most of the time the Animation play without any issues, but occasionally it ...
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22 views

Is there a way to rotate an Ellipse in libGDX for collision detection purposes?

I'm trying to avoid having multiple overlapping Circles for a UFO-shaped sprite. Two Ellipse objects will perfectly cover the shape of my UFO, but I want to tilt/rotate the UFO when flying left and ...
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libGDX SpriteBatch.draw() origin not working as expected

I'm having a weird issue with SpriteBatch.draw(). I'm using the Ashley Super Jumper demo (https://github.com/siondream/ashley-superjumper) as the basis for my code. Here's the render queue: ...
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27 views

Bullet Collision Shape doesn't wrap Model correctly

i got an object called human and an object called platform. I simply let the human fall down on the platform with a constant speed. No acceleration! The problem is that my collision shapes for both ...
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15 views

invisible actor at group (libgdx)

I add to HorizontalGroup several actors: 1, 2, 3. I want to set invisible 2nd actor, and it doesn't take any space (seems in Android View.GONE - ...
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7 views

Loading flipped atlas in libgdx using assetmanager

i'm trying to load a TextureAtlas with the AssetManager but i can't find a way to flip it upside/down. Without using the asset manager, this is possible by using the standard constructor of the ...
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31 views

Libgdx triangulation messing up triangles

I'm trying to triangulate a convex polygon. On the left are the triangulated polygons, while on the right is the convex polygon without triangulation. (both are wrong) but the one on the right is ...
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12 views

Libgdx ParticleEffect world position

I want the particle effect to follow an object in the world, but since the particleEffect uses viewport positioning the desired effect is lost as soon as the camera starts following the object. the ...
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8 views

How to specify core project path in Libgdx Project Generator?

I am following a tutorial on making a flappy bird with the Libgdx framework. -http://www.kilobolt.com/day-11-supporting-iosandroid--splashscreen-menus-and-tweening.html I am currently on the step of ...
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105 views

Create a Minimap of a Tiled Map with LIBGDX

thanks for stopping by to help! Having a little trouble with OrthogonalTiledMapRenderer. I've got a Tiled map that is 250x250 tiles, each 16x16 pixels. Trying to use a separate camera to draw a ...
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14 views

Cut parts off a nine patch LibGDX

As you can see in the image i would like to cut off a few of the boxes when rendering teh nine- patch: Bits to cut off: Are there any LibGDX methods to cut off those bits?
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43 views

How to properly import a .tmx file with the image used to create it?

I tried to create some maps with tield map, and the image I use to create this map(tielset texture) is stored in the desktop. But after the map generation, I copied the file (map.tmx) and ...
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39 views

Maximum tile and texture size for tiled maps

I'm currently making a game using libGDX and Tiled. Everything was running fine until I changed the tile size from 96x96 to 300x300. Most layers are still displayed correctly but the tiles of a ...
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61 views

How to use offline gradle for libgdx projects?

I use Android studio 1.0 and this version has offline gradle 2.2.1 . When I create a libgdx project, it starts to download gradle 2.2 but I have slow download speed and can't download it. How can I ...
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102 views

Implementing a game loop with interpolation

I am trying to implement the Game Loop interpolated found in this website http://www.gameprogblog.com/generic-game-loop/. Here is my implementation: long frameRate = 50000000; int maxUpdates = 3; ...
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43 views

Choosing assets for different screen densities and sizes? (libGDX)

I am making a 2D game. As I understand it we typically have maybe 4 sets of assets (xxhdpi, xhdpi, hdpi, and mdpi) so that our game runs well on all devices. These are just scaled versions of the same ...
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20 views

libgdx not rendering tmx

I am having trouble rendering my tmx files. I am using libgdx, I have tried removing all the box2d stuff but it still does not work. In tiled editor, when i save it as an img and render as a texture ...
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26 views

LibGDX ImageButton not scaling properly on table?

I'm facing the same problem like in this link: question and I think the problem is in the skin passed in a table like this skin = new Skin(); skin.add("pausebuttonup", AssetLoader.pauseButtonUp); ...
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80 views

How to draw multiple large background images using libgdx?

I have developed a basic lunar lander-style game using Slick2D and dyn4j and am now redeveloping it using libgx for various reasons. I am having problems drawing the background (i.e. everything, but ...
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30 views

AssetManager and Pixmaps

I've been reading about AssetManager here: https://github.com/libgdx/libgdx/wiki/Managing-your-assets. Apparently assets are reference counted (with load and unload). I am wondering about Pixmaps. ...
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107 views

Libgdx: Android Facebook login with pure java code

I am integrating Facebook with my LIBGDX project and have everything setup (Facebook SDK, generated HashKeys, Facade pattern for platform specific Facebook API's, etc.). The Facebook dev tutorials ...
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37 views

How do I get the impulse of a collision from Box2D in LibGDX?

I am developing a game using LibGDX and Box2D. I want to get the force or the impulse when two bodies collide, but I can't find the right way to do that. How can I use a ContactListener to get the ...
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20 views

Box2DLight position seems to Floor

I am creating a top down game and i'm using raycasted lights from Box2Dlights, My light is all set up and working. its attached to the player's Body, and when the player moves, the sprite I attached ...
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21 views

Box2D thow ball from PIXELS posisiton

Here are my enemy movement function. I want that my enemy in random Y-position throw a bunch of things in to the player. And I want to implement physics using Box2D. But I know that Box2D workd only ...
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47 views

LibGdx Exception

Here is the exception: Exception in thread "LWJGL Application" java.lang.NullPointerException at com.mygdx.test.excav.game.WorldRender.renderTest(WorldRender.java:34) at ...
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48 views

Libgdx: ModelInstance texture is not rendered on Java8

I have project based on opengl, libgdx framework. It's impossible I think, but when I switch my project from Jdk1.7 on Jdk1.8 I have problem with rendering model's texture. I have no idea how language ...
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88 views

Bullet Physics for Collision Detection and Smooth Response

I'm creating a game using LibGDX, and to prevent the need to spend lots of time writing collision detection code I've decided to make use of Bullet Physics, simply for collision detection and not for ...
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48 views

GdxRuntimeException uiskin.atlas

I have problem when trying to use the uiskin.atlas from github/libgdx. I've downloaded(cloned) it from libgdx.git but it just doesnt work. I get the following error: ...
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118 views

libgdx y axis rotation (card flip)

I am a complete new user to libgdx and am looking to use it to write a simple card game. I want to be able to flip my cards over to reveal them, in the same way as this example from Google shows. ...
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26 views

Using fonts in Scene2D GUI

I'm learning how to use Box2D and Scene2D together. I'm trying to create a Sprite class that combines a Box2D body with a Scene2D actor. Before I can do this I need to set up the environment I plan to ...
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64 views

Problem with changing font color in libgdx

I recently noticed that my version of libgdx was way out of date, so I updated from version .9.something to 1.4.1. I copied files for the project I'm working on over into a new project generated with ...
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26 views

Change a vertices and display corner of a polygon

I'm currently building a level editor for my game and i'm having some trouble on how to change vertices of a polygon. Basicly i searched the web trying to figure out how to update the vertices of a ...
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31 views

Cant Set Image Origin in Table Cell - LibGDX

I am having real issues with my Actors when placed in table cells. I would like to set center Origin to allow me to tween the scale around the center. I am aware that the Table is responsible for ...
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106 views

In libgdx, how do I get the intersection of a ray with a model instance?

I am using LibGDX trying to use raypicking to pick a point on a Mesh. I have two methods for this that don't seem to work quite right: /** * @param ray * @param intersection The vector to store ...
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133 views

Move body LibGDX Box2D

Hello I have a body and I want to move it. When I press the mouse button my body should move at that position (on the const speed)on the screen. I have override two methods(x1, y1 - point where my ...
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255 views

Box2D shape/fixture position vs. body position

I load my rectangular shapes from a simple Tiled level into libGDX and want to create a physics world out of it via Box2D and attach sprite assets for rendering. I get the tiled object layer and ...
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48 views

(libgdx) how to make an actor transmits the events it receives to its children?

I use the following class : public class InGameMenu extends Actor{ /** VARIABLES **/ private boolean debug= true; private float x,y,width,height, margin; private static final String TAG = ...
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65 views

libGDX fixed object and camera do movement

I develop game to andorid and there is moving object with arrows - simple movement like in RPG games. I did: camera.position.x = PIXELS_PER_METER*man.body.getPosition().x; camera.position.y = ...
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53 views

Box2D - create object with different physic parts

I have object with physic: BodyDef bodyDef = new BodyDef(); bodyDef.type = BodyDef.BodyType.DynamicBody; bodyDef.position.set(position); bodyDef.angle = angle; ...
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78 views

How can I rumble/vibrate my controller with libGDX?

The API in the extension in com.badlogic.gdx.controllers.Controllers only supports getting the input data (works fine). Is there a way to make my controller rumble/vibrate using some other ...
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59 views

FPS drop after moved from Textures to TextureAtlas in LibGDX

I've started using LibGDX some time ago and I was making a test project to get used to this library. I've created some images and added them to the assets folder and loaded each image as a Texture ...
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133 views

How can I make a swinging rope?

Base question: How can I make a swinging rope in box2d? Context: The idea is to have a rope where the player can grab it, swing a little bit to get more "momentum" and reach the next platform. Like ...
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38 views

How to get the amount of bytes received from KryoNet server?

I'm using KryoNet and I wanted to see how many bytes were were received from a server, could anyone tell me how could I achieve that? Please provide sample code or an example for how to do it.
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723 views

LibGDX MainMenu with ScrollPane - Select Level and press Play

In my level Menu, I am using tables that have images and text to identify each game level. Those tables are in a table that is inside a ScrollPane so the player can browse the levels available. Here ...
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194 views

Libgdx/Box2D PolygonShape has no position… well, what now?

As my prototype works perfectly fine I want to advance to more fun areas of the project and add a more complex player-character body. So for Box2D I figured I'd need multiple fixtures, like one for ...
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58 views

LibGDX ShapeRenderer graphical glitches

So drawing something static on the screen with the ShapeRenderer is fine but whenever I try to move something it starts glitching out. Here's a vine to show what I mean: https://vine.co/v/OBxFi1P2IO9 ...
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60 views

Camera rotation issue Libgdx

I have a OrthographicCamera and I want to rotate 90° it, but when I rotate it seems to be shifted more to the right. Before rotation: http://postimg.org/image/tc9jpq9zr/ After ...
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83 views

LibGDX - How to move Actor with fingers Code?

I am completely new to Game Development. I See all these Questions and Answers and Codes and I have no clue what to do with them. I need some Guidance. My Plan: I want my Actor to move up and down, ...