LibGDX is a cross-platform Java game development framework based on OpenGL (ES) that works on Windows, Linux, Mac OS X, Android, iOS and your WebGL enabled browser.

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libgdx ScissorStack problem

Im making a user interface using libgdx I created a Window class & a Textfield class, that both use clipping. I use the ScissorStack class of libgdx for clipping. The Textfield is drawn inside ...
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libgdx - Image artifacts when downscaling image

Why does this border appear around the edges when I downscale a bitmap and how do I avoid it? I tried every filter I know, the results go from bad to worse. Here's the original bitmap:
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Resize the Texture Region (parallax background) to fit my screen size in libgdx

I am using libgdx to make a running game. I am using vertical parallax background. I have successfully implemented parallax background many times. But for this game, I want my Texture region to fit my ...
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Slowdown in sliding background with Libgdx

I´m new with libgx and i have a basic question. I want an background like an image that repeats indefinetely, and moves down. I did with 2 images and it worked, but the problem is that is very slow. I ...
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How can I transform a group of objects in libGDX?

I'm new in LibGDX. I created group with actors in show method and add listener (where i calculate rotation matrix) and want to rotate all actors from group with batch.setTransformMatrix(matrixResult);...
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How do I implement a “sliding out of / into” effect on a settings menu similar to that in Angry Birds?

I'm trying to implement a settings menu component similar to that in Angry Birds - a button control that makes an options menu slide out of it and back into it when clicked on. I use scene2d.ui to ...
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443 views

LibGDX render sprites in tiled-map format ( convert texture to sprite )

I am creating a game in which till now I have used textures to create A 2D tiled game. I have created a matrix which converts the touch co-ordinates into a array index number and according to that ...
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238 views

How should matrix-based Parallax Scrolling work?

The question is at the end, as it requires a bit of context. I'm not sure if my understanding, my code, or LibGDX's ParallaxCamera is wrong. LibGDX's ParallaxCamera uses Matrix4s to achieve a ...
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How can I modify my procedural shadows to also show some of the walls?

I'm rendering shadows in Libgdx with the method from this tutorial. I think it's a nice and easy method. I render all my shadows in a framebuffer, then invert it. Before invert: After Invert: #...
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156 views

LibGDX polygon caching

I am developing an Android game using LibGDX and I have big world map made of polygons. I use PolygonSprite and PolygonSpriteBatch, when I render map, I get 30-35fps and it feels laggy. I wonder if ...
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390 views

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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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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Rendering tile maps for mobile devices

Hitting a bit of a roadblock with my game's development and I'm just looking for some outside advice. I'm trying to render a tilemap for my mobile game (Android) and I'm using LibGDX. Now, here's ...
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526 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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237 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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715 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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306 views

fire multiple events in InputListener

I have two Actors on my stage in libgdx and and both have a InputListener. I override the touchDown method and it works fine. My Problem is that when I press my Actor Z and a second later Actor Y only ...
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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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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 OrthographicCamera(...
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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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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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Handling data logic on libgdx ai state machine or in ashley system?

In this below example, I've combined libgdx ashley and AI state machine. Do you think it's a good idea to handle the logic in state machine or stick on handling the data logic on System? public enum ...
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Why it takes a secs to update the sprite draw order in libgdx SortedIteratingSystem?

I have a rendering system that extends SortedIteratingSystem and created a comparator to sort the sprite draw order. But the problem is when I update the z index, it takes a second before it changes ...
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42 views

Algorithm for 2d AI aiming to compensate for gravity

In a 2d side-view scenario I have two riflemen aiming at each other. By normalizing the x and y difference they know the direct path to the enemy. However, gravity will pull the projectiles downwards,...
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21 views

Rendering Map at point

I am trying to have the map display over the background image of my play screen and I cant find a way to have it appear to the side. I would like it to appear where it is in the example i made in ...
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42 views

Sprites Positons

I create my sprites for 800x480 and position them accroding to this On dealing with multiple resolutions I use a method that set sprite size and position according to the current resolution instead ...
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19 views

make scrollable list in circular shape using libgdx

I am developing a game using libgdx. I am stuck at making a list in the shape of a half circular which is also scrollable. This is a sample image (not circular) which I want to be in similar shape ...
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26 views

Uniform Interpolation?

In currently developing a little local Multiplayer game. In using Interpolation to make the player and entitys move smoothly but there's one problem, im using Interpolation, that looks like this ...
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35 views

LibGDX - Parallax scrolling background help

I've been trying to do a parallax scrolling effect on my 2D side-scroller game, to give the illusion of depth, by having layers at different speeds. Basically, I have a camera that follows the player....
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15 views

LibGDX - button change image on hover over time

As we all know, LibGDX has a TextButtonclass which has a TextButtonStyle and ButtonStyle. The style has some parameters: up - an image which is shown normally as a button background down - shown ...
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LibGdx scene2d Table getRows() returns 1 while i have 2 rows

I am trying to make a puzzle game in which i build the level with Table layout from libGDX scene2d.ui. When building the table i know for sure there are 2 rows (2 rows do pop up on my screen) when ...
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9 views

LibGDX Render Mesh

I have a Mesh mesh. I'd like to render mesh. However, its method for doing so is render(Shader shader, int primitiveType). I don't have a shader. To get a shader, the thing to do is new Shader(...
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Libgdx Actor and Group touchDown event problem

What happens when a Group containing some child Actors has a touchDown event listener but at the same time, its child Actors also have a touchDown event Listener? For example if a group contains some ...
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33 views

Libgdx - notification popup (something like Toast) - on both Desktop and Android

I'm trying to implement a notification system with LibGDX. As we know, Android has it's Toast which is great, but I can't use it in Desktop mode. I tried extending Dialog etc, adding as an actor and ...
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Libgdx Music is not working again

I am starting background music when the user goes to the PlayScreen and when the kid in the game dies, the background music stops and starts game over music and move to game over screen, then the user ...
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Libgdx Ending level is not working properly

In my game the kid is collecting fruits but if he hits the rock 3 times or time is up before collecting the required points, the kid will jump to the half of the screen then fall down and start fail ...
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39 views

I'm unable to stop the background music when i jump from one activity to other

I'm developing a game in libgdx . there is a menu screen in the game along with some background sound. the problem is when i jump from the menu screen to the game play screen the background sound is ...
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24 views

Hills / Rounded Terrain Generation in libGDX

I'm trying to make a game that has rounded 2D terrain like hills, etc. Im familiar with creating and rendering 2D Rectangles using the ShapeRenderer, but i need some "Get Started"-Help on how to ...
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libgdx : starting animation disables imagebutton

I am playing an animation on clicking an imagebutton in android. Both the imagebutton and the Image for animation are actors on same stage. Animation plays perfectly, but the issue is after the ...
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7 views

Should I boost run task via disabling TexturePacker?

I decided to create textures with keeping in mind that the largest screen resolution that my game will be working with is 1920x1080. So, menu background texture in my game will be always 1920x1080. ...
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32 views

Libgdx game doesn't work correctly after game over screen

So, I am trying to create a platform game for Android. As part of the game, I have created ladders that the hero is climbing. When he hits the enemy he dies, there is a game over screen --> touch to ...
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How can I make an animation in LibGDX?

In my game the player is running away from enemies and when he can't keep up the speed anymore I want the enemies to fade in from the side of the screen as the player is still running as show in this ...
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26 views

libgdx box2d move object in bezier curv

I'm making a game and i need to move my game object in a bezier curv path i succeeded in doing it: //create Bezir curv .... path.valueAt(outMove, val); path.derivativeAt(...
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libGDX GWT compile with “-style DETAILED”

So basicly my libgdx HTML5-gradle build doesn't work. When switching from state it gives the following error: __gwt$exception: <skipped>: Cannot read property 'tM' of null Of course I want to ...
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Hotplugging LibGDX

Trying to find a work around to getting hotplugging to work with LibGDX (the latest version seems still like it doesn't support it). Anyone know of something I could do to get joystick hotplugging to ...
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LibGDX Box2D Body shape transformation

In the following method my player Body is created: public static Body createPlayer (World world) { BodyDef bodyDef = new BodyDef(); bodyDef.type = BodyDef.BodyType.DynamicBody; ...
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Box2d Body filled with a texture Libgdx

I have a simple triangular shape (obstacle) in my game and i would like to fill it with a texture repeatedly. I have looked at the other 2 topics but couldn't find a working solution. How can i fill ...
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LibGDX works well on android 4 and very bad on android 5 and 6

I have a problem with my game. The game is made with libgdx, scene2d and box2d and it uses an AssetManager. I tested this app on all my devices and here it is the results: Galaxy S3, android 4 (...
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Blur shader decals

Im trying to implement custom shader for decal GroupStrategy in libgdx, and I'm having some noob GLSL and OpenGL problems. I have implemented shader looking at this: http://xissburg.com/faster-...
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Compiling libgdx game to iOS with BugVM - it launches libgdx Hello World app instead of my game

I'm trying to use BugVM (which is just a free open-source fork of RoboVM) to compile my libgdx game to iOS, but when it launches in iPhone simulator, it's not my game but the libgdx "Hello World" app: ...