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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5
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158 views

LibGDX controllers: how to fix crashes in JRuby?

I'm using JRuby with LibGDX and it's been going quite swimmingly, save for a crash I experience every time I try to use the controllers extension. Here's a basic rundown: I've required all the ...
2
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0answers
36 views

Why does adding LIBGDX “fadeIn” action to a table in a group make the whole stage fade in?

I'm trying to "fadeIn" a store "screen" which is really just an invisible group. I set the group to visible=true, set the alpha to 0 and then do a "fadeIn" on the group. The problem is that the whole ...
2
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0answers
81 views

Drag And Drop in libGDX (Target and Source)

I'm trying to put together a drag and drop system in libGDX with the help of DragAndDrop class. I have the typical system in which you can drag something into a box. So far it is working all dough I ...
2
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59 views

Why do my Box2D bodies occasionally get stuck and separate forcibly?

I'm making a space game with LibGDX and Box2D. I made a video here to illustrate the issue. Verbal description: When objects collide, they sometimes get stuck together and are then suddenly separated ...
2
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144 views

2d libgdx: runtime level generation

I have encountered a problem during my first game development: I thought of a Array<Ground> groundArray that does groundArray.add when a new ground will appear on the screen, and removes oldest ...
2
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0answers
132 views

Unproject considering parallax depth

How can I take screen coordinates (or alternatively world coordinates on the 'primary' parallax plane) and find out what world coordinates they translate into when taking parallax depth into account? ...
2
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0answers
327 views

How to create heat haze effect in Libgdx?

I would like to create a heat haze effect for a 2D game I am making. Do You have ideas or suggestions, how to get that effect. I am using Libgdx(OpenGL 2.0). Thank You in advance!
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988 views

Libgdx ParallaxScrolling and TiledMaps

I implemented ParallaxScrolling for my SideScroller project, everything is working but the tiled map (the most important part!). I've been trying out everything but it doesn't work (see the code ...
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18 views

Play videos via 3rd party library or as animation in libGDX?

I want to add an animated splash screen to my desktop game, which I develop using libGDX. Now I see there is no native support for videos in libGDX, so I guess I have two options: Include a 3rd ...
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82 views

Libgdx implement 2d drop shadow for transparent sprites

I am a libgdx learner. For an learning application that I am developing using libgdx on android, I need to show drop shadow or glow effect when a sprite is touched. The sprites are created from a ...
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48 views

How to eliminate the outline in libgdx?

I'm recently started working on a game in libgdx, and I've run into the problem that my sprites tend to get a thin, whitish outline around them. This is especially a problem for me since I'm working ...
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66 views

How do I fill a shape with a texture in Libgdx?

I am making a 2D racing game. I want to fill the area of the ground object with a texture. I have the shapes of the ground (a Box2D shape). If I make images of the ground with textures, it uses a lot ...
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49 views

LibgGDX drawing two seperate Textures in FrameBuffer

So I am trying to combine multiple TextureRegions in to one by using a FrameBuffer. This works extremely well when the TextureRegions originate from the same Texture object/file but as soon as I try ...
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75 views

libGdx Window .pack() not working

I'm trying to make a window, then use the pack method to get the right size, but the window maximizes instead. Here's my code: private Table buildOptionsWindowLayer() { winOptions = new ...
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0answers
69 views

LibGDX: Why look BitmapFont pixelated on a scene2d.ui.Dialog?

When I use BitmapFonts directly on the stage table, the fonts looks normal (not pixelated). But when I use the same BitmapFont with the same size on a scene2d.ui.Dialog, the font looks pixelated. ...
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127 views

LibGdx Triangle Collision

I'm back with another question. I'm trying to get a collision between an actor and a sprite. With the actor, which only moves upwards and downwards, I've got no problem since it's shape is a ...
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56 views

LibGDX mesh silhouettes

How could I find out the silhouette edges of a mesh in libgdx? More specifically, how could I produce shadow volume geometry using the Mesh class of libgdx?
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81 views

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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110 views

Incorrect click event when resize on libGdx

I want to use scene2D, in libGDX, to detect click on object. I have this simple Game sample : Stage stage; @Override public void create() { this.stage = new Stage(1280, 720, true); ...
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828 views

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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0answers
417 views

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 ...
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326 views

LibGDX - Box2D: Realistic Light and Layers

I'm having some problems with my current game. Short description: It's a 2D game where you have to avoid the lights or you lose HP. My problem is the following one: Here is the rendering process: ...
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226 views

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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0answers
255 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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175 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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0answers
105 views

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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128 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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722 views

How to draw table border in libgdx?

I'm new to libgdx and I'm currently working on TableLayout and wondering how could I draw borders for each cells. I've done some research on this but it seems that I could come up with this solution ...
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193 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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0answers
67 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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120 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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346 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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148 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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0answers
351 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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0answers
457 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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180 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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0answers
157 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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13 views

how to fix the character flip when using orthographic camer libgdx

i used orthographic camera to follow the character(player) but the problem that is my character is flipped there is no tutorials on how to fix this please help as fast as possible here is my create ...
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0answers
30 views

Libgdx getting random position on screen is null?

So, I want to get the random position on my screen to spawn enemies on them. but here's problem. int randX = r.nextInt(screenWidth); int randY = r.nextInt(screenHeight); Apparently these are null, ...
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0answers
50 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 ...
0
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0answers
7 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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24 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 ...
0
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0answers
31 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 ...
0
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0answers
32 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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82 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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26 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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34 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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15 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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23 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); ...