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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2
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4answers
214 views

How to make sure that when two bodies collide, there is only one collision detection on box2d?

I'm using LibGDX with Box2D and, when two bodies collide, the collision is detected multiple times. Here's the code: public void preSolve(Contact contact, Manifold oldManifold) { Body a = ...
-1
votes
0answers
9 views

How to make the interaction of sensors is in box2d? [on hold]

can not figure out how to make the interaction of the sensor platform has become active. something like this: BeginContact { if (sensorA && sensorB){ platform.getBody () ...
2
votes
1answer
90 views

Get array from JSON in Libgdx?

I wanted to load in map information using JSON, is there a way to get String, Int, float etc lists or arrays from JSON in Libgdx? My structure looks like this { "data": [{ "name": ...
1
vote
1answer
61 views

LibGDX How do I create a Shop?

My game is fully working but now I want to make a shop so that the player can buy boosts or other useful stuff for the money the player has collected. What is the best way of doing this kind of ...
0
votes
1answer
47 views

ScreenSize vs. WorldSize

While programming a game with LibGDX, I came across a problem. My OrthographicCamera wasn't centering in the right place. I was trying to center the camera by using the line of code: ...
0
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0answers
66 views

Box2dMapObjectParser isometric map - bodies have wrong rotation and size

I'm using Box2dMapObjectParser to load Tiled objects layer onto my IsometricTiledMapRenderer'ed TiledMap. It works OK with a UnitScale of 1 but the position is wrong and some shapes have weird ...
0
votes
2answers
573 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 ...
3
votes
2answers
1k views

Matrix rotation wrong orientation LibGDX

I'm having a problem with matrix rotation in libgdx. I rotate it using the method matrix.rotate(Vector3 axis, float angle) but the rotation happens in the model orientation and I need it happens in ...
0
votes
1answer
267 views

LibGDX make an object rotate around something

I need to rotate and object, which should be a circle made up with a ShaderRender, around a specified point. In LibGDX there is a method or something which allow me to do this? If it doesn't exist how ...
0
votes
3answers
48 views

How to scale bitmap font without having it pixelated

How do i increase the size of a bitmap font without having it get pixelated, in libgdx?
1
vote
1answer
151 views

Switch beetween Screen on LibGdx application

i have set main class like this: public class MyClass extends Game { MenuClass menuClass; ActionGame actionGame; @Override public void create() { menuClass = new MenuClass(this); ...
0
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0answers
5 views

LibGDX Child node is not following animation

So I'm trying to place a golf club as a child node of the hand of our "golfer", so it follows the animation the golfer has when the animation is invoked. However, once I hit "Check Swing" (the button ...
0
votes
1answer
62 views

libgdx limit angular speed

I'm working on my top-down game. y characters use pathfinding + steering behaviors(Arrive and FollowPath) to move. I've implemented my character class from libgdx SteeringActor class (from tests). So ...
0
votes
2answers
611 views

Basic 2d platform collision detection algorithm has a slight bug (Java)

I'm trying to implement collision detection between Player (the main character) and a Platform. They are both modelled as rectangles; when player hits the side of a platform he should bounce off it ...
0
votes
0answers
21 views

implementing gesture detection lib gdx

How do I add a long press input to my libgdx game. here is my failed attempt: public class PlayState extends State implements GestureDetector.GestureListener { private Protagonist bird; ...
0
votes
1answer
57 views

Network interpolation wont work for local player

im currently developing a little duengon crawler. It should have lan multiplayer and it works great but i think im sending to much packets. Should i send packets over network, when a player moves in ...
1
vote
1answer
64 views

Centering an animation [libGDX]

I have the following class: public class AnimationDemo implements ApplicationListener { private SpriteBatch batch; private TextureAtlas textureAtlas; private Animation animation; ...
1
vote
0answers
43 views

Libgdx stops all sounds when there are lots of sounds

I'm making a 2D game for Android using Android Studio with Libgdx in Java. I have a class, called SoundPlayer, which holds an ArrayMap. The key is the name of the sound file and the value is the sound ...
0
votes
0answers
26 views

How to split a screen in half using LibGDX without scaling?

I am currently working on a racing game with libGDX and I need to split the screen in half for a two-players mode. (Player 1 in first half and Player 2 in second half). I already have Camera1 that ...
0
votes
0answers
53 views

How to update projectile trajectory point?

I am a new game developer, I am making a game, but I have a problem, I don't know how I can update my trajectory point in OnDraw method. Could anyone please help me? Thank you! Here is my code: ...
5
votes
2answers
584 views

Main game objects as static

I'm making a game for Android using Android Studio with Libgdx in Java. In my game there are main object like Screen, ObjectFactory, SoundPlayer, Painter (Responsible for drawing) and a few more. 'til ...
0
votes
1answer
105 views

Raycasting. Corner trap

In my top-down game character moves to target (pathfinding) also avoiding obstacles with Raycasting(Central ray with whiskers), but situation like on picture causes shiver and unneeded turning ...
1
vote
1answer
38 views

Box2D fixed timestep updating is twitchy on constant FPS

I'm messing around with libgdx and box2d and I'm trying to implement sidescroller movement with fixed timestep logic according to the famous Fix Your Timestep! tutorial/guide. However, logic updating ...
0
votes
1answer
13 views

InputProcessor without stage

I have a GameScreen where I'd like to have a pause button. I've tried using an Image with a listener, but since my GameScreen isn't a stage, I can't use that in the inputProcessor. So my question is ...
1
vote
2answers
513 views

LibGDX particle emitter rotation

I have a libGDX game, in which I'd like to make some ice breath like effect using particles. So far we made a cone like effect. I can obtain and render it on the screen with this. ...
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votes
0answers
18 views

Could you help find the error in this Cryptic crash log from Lidgdx game engine [on hold]

This is crash log I get sometimes, when I run the libdgx game. The game uses Box2d physics engine. Here is the file content : http://pastebin.com/raw/FT43RKzk
0
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0answers
21 views

TiledMap Safe Area for different screen resolutions

I'm creating a Tower Defense game using libGDX (w/ scene2d) and TiledMap. I've been reading extensively about viewports and how I can better manage various screen sizes. I want my Tiled Map to take ...
0
votes
1answer
66 views

How could I draw text in an 'info bubble' with libgdx?

I am making an android game using libgdx where there are textures on the screen which represent people. When you touch a person sprite I want a little info bubble to pop above their head displaying ...
0
votes
1answer
42 views

Simplifying Object Factory

I'm making a game for Android using Libgdx with Android Studio in Java. In my game, I have a class called ObjectFactory which has a method createGameObject(int objectType) which receives an integer ...
2
votes
2answers
735 views

Card game - creating card Listener

I am making a card game where there are 21 cards on hand and 2 options from where user can draw cards to his hand and throw a card from hand. I am new on game development and I'm following the ...
3
votes
2answers
256 views

LibGDX - Can't read .ttf file when running Android configuration

when running or debugging my game on android device, i get this error in the logcat: com.badlogic.gdx.utils.GdxRuntimeException: Error reading file: data/fonts/myFont.ttf (Internal) which is ...
1
vote
1answer
86 views

Change screen dimensions in libgdx in HTML

Can i change the screen dimensions in libGDX in HTML? If I inspect the element (the game) in Chrome and I change canvas width or height it changes the screen dimensions, but I don't know how to do it ...
0
votes
1answer
24 views

LibGDX - Bundling Files

I have 3 files. A JSON file, a PNG file, and a TXT file. Is there any possible way I can put all three inside a common file with a custom extension? (for example "fileName.abc") I searched the web a ...
6
votes
1answer
565 views

Word game - board implementation?

I'm working on a boggle type game for android, using libgdx. The user is presented with a 4x4 grid of letters and must find words by dragging their finger over the letters. Unlike boggle I want used ...
1
vote
1answer
95 views

LibGDX - Rotating sprites and still keep the positioning between them

I've been struggling with a problem regarding rotations and relative positions between sprites (in this case, the sprites are just lines) - a bit off-topic, but should i be using the ShapeRenderer ...
3
votes
2answers
108 views

Rotate sprite along the angle between two objects

Im trying to make flames follow my object, I set the direction for my moving object using the points between it and another object (using static destination for testing). No matter what I do I ...
0
votes
3answers
65 views

LibGDX - Trying to make a radar-like display

i have an interesting question about geometry. I have two or more moving objects outside of my stage's viewport (blue and red circle in the image below), which i want to point at with two arrows on ...
0
votes
1answer
16 views

TiledMap renders but gets duplicated when I move the camera

I've created a map (TMX file) using Tiled, imported it and it shows great but when I move the camera, it duplicates itself and the whole screen flickers. In Tiled, I didn't use a spritesheet but ...
0
votes
2answers
292 views

How to fix overly blurred texture / image in unity?

so, I'm not sure what caused this, let image below do the explanation : How to fix the overly blurred texture in unity? It's so frustrating, since I can't get it right, because when I tried it in ...
-1
votes
0answers
30 views

How do I render a random picture to the screen each time game is initiated lib gdx [closed]

how do I render a random texture on the screen each time my libgdx game is initiated.
1
vote
1answer
138 views

LibGDX - how to detect touchUp with GestureListener?

I'm making a game and I have implemented GestureListener as my inputprocessor. It came with a bunch of methods such as fling, pan, tap etc etc including touchDown. However, there is no touchUp method! ...
0
votes
0answers
17 views

AdMob Banner appears 960x150 instead of 320x50 in libGdx - what's wrong here?

I am a bit helpless with this strange effect from AdMob. AdView is instanciated in code and so is the relative layout and libGdx view. View view = ...
1
vote
1answer
67 views

LibGDX Box2D texture on dynamic generated body

I'm creating a game that is similar to hill climb racing. I've generated the ground and now I want to add texture to the ground. Here is a screenshot of a game Here is my code (I create ground using ...
3
votes
1answer
364 views

How can I update a Stage-based HUD from another Stage's Actor in libGDX?

I feel like this is a simple problem, but I'm having issues finding the correct search terms. I have a Screen that includes two Stages. The first, stage, contains a number of objects deriving from ...
2
votes
1answer
54 views

Using LibGDX, is it necessary to clip what I'm rendering for efficiency?

So I am working on a game, and I've noticed that everything in the world is sent to be rendered. Of course with the camera, only some of the world is rendered. Does this mean there is there any ...
1
vote
1answer
113 views

Screenshot always returning as a white image on iOS using robovm and libgdx

I am trying to take a screenshot for sharing on social media. This code works on my Desktop project, but when I use it on iOS it always shows up as a white image, I am using the standard libgdx code ...
3
votes
1answer
132 views

LibGDX - Show a minimap

I've started to develop a small roguelike game in LibGDX. I've also made a minimap class, which creates and updates the minimap as the player explores the dungeon, by using a Pixmap. The minimap class ...
2
votes
1answer
225 views

Scene2d Stage Actor setup issues

I am creating a game using libgdx. In the same each level has a class. I have stage as a member variable of the class. To this stage, I add actors. Inside the levels class, I have attaced the input ...
-1
votes
0answers
25 views

OrthographicCamera Positioning Issue

I've been creating a Jumper game using Libgdx but I have come across some positioning complications. My OrthographicCamera follows my player fine, but whenever I start the game up, for some reason, ...
1
vote
1answer
2k views

Two pass blur shader using libgdx tile map renderer

I am trying to apply the following technique: blur effect using two pass shader to my libgdx game using the OrthogonalTiledMapRenderer. The idea is to blur the background wich is also a tilemap but ...