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 Scene2D.UI without Scene2D?

I'm currently programming a little game in LibGDX for which I planned to use Scene2D's UI aspects to make menus and a hud. When fiddling around a bit, I noticed that my Scene2D.Stage basically made ...
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LibGDX BoundingBox + pickRay issue

I've been following this tutorial for trying to be able to detect if I have clicked on a 3D model, but am running into some issues. Here's what I have — public GameObject getObject (int screenX, int ...
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Rotate object from an origin using a transformation matrix

I'm making a project in lib GDX and I want to rotate an object by changing the transform matrix of the sprite batch to one that rotates an object rendered on screen a given number of degrees from a ...
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How to set cursor position to middle of screen while still being able to change the Delta-X

I have this code: @Override public boolean mouseMoved(int screenX, int screenY) { float deltaX = Gdx.input.getDeltaX(); camera.rotate(Vector3.Y, deltaX * -0.3f); ...
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collision detection with rotating Sprite

Im using Libgdx. I have a space ship sprite rotating around the earth trying to avoid incoming asteroids. The ship is being rotated by setting it's origin in the earths center. How do i detect ...
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Get entity at supplied world position LIBGDX

So I'm making a simple 2D rpg. What I need is to be able to interact with the entity that the player is looking at. I need to be able to look at E.g another player in the world and press 'E' and have ...
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Enable multi touch for Scene2d UI widgets?

I'm using scene2d for my on-screen controls. I have 3 buttons and each one has it's own listener which sets the entities current action on touchUp and touchDown events. However when I hold one button ...
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45 views

How to render Fonts with correct size?

I'm making a game using libgdx and box2d so my Orthographic Camera Viewport is only 20x12 pixels/meters, when I try to render the a font on screen it becomes really big and pixelated, I also tried to ...
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33 views

LWJGL Using wrong openGL version

I am trying to make a game in java using the LibGDX library witch is an extension of LWJGL. LWJGL is claiming that I need at least OpenGL 2.0 with the FBO extension but I only have version 1.1.0. So I ...
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LibGDX: how to implement 2 cameras in a unique stage

I am quite new to LibGDX. I am trying to make a game, where the character is an Actor, and it's controlled by a Touchpad(included in the main Stage as an Actor too). My problem is that I am trying to ...
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Disable buffer swapping in LibGDX

Is there a way to disable buffer swapping in LibGDX every time the "render" call of ApplicationListener returns? I mean - I'm looking on some way to be able to tell the framework if I want the buffers ...
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Scene2D viewport affects all other cameras despite having a separate one

I have two cameras initialized as such: val mainCamera: OrthographicCamera by lazy { OrthographicCamera(WIDTH * ZOOM, HEIGHT * ZOOM) } val guiCamera: OrthographicCamera by lazy { ...
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Setting delay when switching from one screen to another in LibGdx

How can I add a delay when switching from one screen to another. Example:Screen1 class extends Game class and screen2 implements Screen implementation. Screen1 uses setScreen() method to switch to ...
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33 views

2D Voxel Game Chunk Question

I'm currently working on a 2D Voxel game. I started with a big blocks array with all blocks inside it, but it is not very good for performance, so I'm currently switching over to chunks. My question ...
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libGDX render 2 tiled maps at different coordinates

I am currently learning libGDX and I want to make a game that loads multiple tiled maps and renders them. This is what I have now: public class PlayScreen implements Screen{ private Main game; ...
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LibGDX Box2DLights - Global Illumination

I'm using LibGDX + Box2D to create dynamic lights in my game, but I'm currently stuck. I'm trying to light up every game object in the game with its own shadow, kinda like global illumination. Do you ...
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How can I switch between Stages in Libgdx?

Hello I used Stage for my menu, because this way I could add my whole UI to a CompositeActor and get the buttons, as was suggested to my in Overlap2Ds forum. Getting the button and etc works right ...
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How to screen color blend spritebatch?

batch.setBlendFunction(GL20.GL_SRC_ALPHA, GL20.GL_ONE_MINUS_SRC_ALPHA); batch.setColor(new Color(0xFF0000FF)); batch.draw(...); Expected result: Current result: How can I achieve something ...
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Libgdx Box2D - Object not showing up

I am trying to put a sprite into my b2d-world. But for some reason, it is not showing up. I've already checked the camera settings, they are defenetly correct. Then I came to the point to check the ...
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Rendering BOX2D shapes with LIBGDX

I have been creating a game on my own and I need a little help to begin with graphics. I haven' t found much in the internet about this topic, so I came here. Right now I've got a chainshape that i'm ...
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32 views

Is it possible to use a Unity 3d Model with libGDX?

Can I use a 3d model like https://www.assetstore.unity3d.com/en/#!/content/36951 in a libGDX 3d game?
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Creating tunnel of points in LIBGDX

I have been wandering in the Internet lately to find the best possible solution for creating a 2d tunnel/cave in my game in LIBGDX. My game in short: One player can control a shape in tunnel, the ...
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LibGDX: drag and drop in a vertical group

I need to mode with a drag and drop a cell/row in a vertical group and change its position, before or after another cell/row. Is there something that can help me to implement this? Thankyou
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LibGDX: Skin and scaling problems

I'm trying to use Skins with TextButtons. However I'm having an issue where the TextureRegions of the Skin are NOT being scaled down to the tablesize. This is leading to an issue like in this image: ...
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19 views

Generating hexagonal tilemap in libGDX

How would I go about generating a hexagonal tilemap in Libgdx? My idea before was to just use a prebuilt tilemap and then change tiles on it but I'm having problems with the hexagonal co ordinate ...
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LibGDX: open android camera

I need help, I can't find a solution to open camera device in my libgdx app. I'm developing it only in Android for now but I have this issue. I need only to open the preview view, no snap picture o ...
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animation of an Actor in libgdx crashes on iphone

I am using a class found here on stackover for the animation of the actors , but I crash on the physical device class AnimatedImage.java: public class AnimatedImage extends Image { protected ...
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SpriteBatch draw does not work on iOS - LibGdx

I have a small problem , in practice if I batch.draw ( ... ) ; It does not work on iOS with robovm . my code.: on the crete() method: texture = new Texture(Gdx.files.internal("background.jpg")); ...
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Libgdx HexagonalTiledMapRenderer

How does the hexagonal tiled map renderer work in libgdx I'm trying to render a hexagonal tiled map and I can't quite get it to display correctly I've used the orthogonal tiled map renderer before and ...
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53 views

Avoiding circular referencing using a Finite State Machine in a Component Based Architecture

While answering this question, I realised I had made the same mistake in my own code for a game I am writing using an Entity-Component System. The problem arose when I decided to use a Finite State ...
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libgdx drawn a projectile trajectory cannot render

I am looking to draw a projectile trajectory . I found a lot of code such as : http://blog.gemserk.com/2012/07/03/drawing-a-projectile-trajectory-like-angry-birds-using-libgdx/ The code I editor; if ...
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32 views

How to detect number of pointers being used on screen?

I wan't to be able to detect if the screen is touched by two fingers at the same time. final int MAX_NUMBER_OF_POINTERS = 20; int pointers = 0; for(int i = 0; i < MAX_NUMBER_OF_POINTERS; ...
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Independent Column sizes in Scene2D Table in LibGDX

For my game's (mostly GUI based) UI i am using table from Scene2D in libGDX. I want independent column sizes in my table but first cell width is the width for all other rows in column. Is it possible ...
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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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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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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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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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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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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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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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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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107 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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25 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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66 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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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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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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TiledMap blocks makes Animation invisible

////////////////////////////////////////////////////////////////////////////////// Got it fixed. Thanks to anyone who tried to help me. New Code: mapManager.render(); ...
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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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32 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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65 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); ...