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.

learn more… | top users | synonyms

0
votes
1answer
58 views

Animation fails due to a NullPointerException which I'm certain shouldn't be thrown (LibGDX / Java)

What the title says basically. I've been stuck on this error for a few hours I got it to work earlier but I honestly can't see why its failing now (ctrl + z'd back to the working stage). Here's my ...
0
votes
2answers
173 views

get View from LibGDX for Android

I am making a LibGDX app, and I need to get the view to put to an Android app. Here is the code to get the view: package jangkoo.game.shadowfiend.android; import ...
0
votes
1answer
64 views

How can I test if the mouse draw on the active tiles?

I want to draw some sprites in a tiledmap where the tiles are active. I want to draw with the mouse, so how could I compare the position of the mouse, the sprite position and the position of active ...
0
votes
1answer
19 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. ...
0
votes
1answer
23 views

Libgdx distorted texture size

I'm just starting to learn LibGDX and have been having some troubles getting my world size to match with my texture size and box2d bodies. I have a texture 64x64 that I am trying to display but it ...
0
votes
1answer
235 views

LibGDX Bounding Rectangles

I'm creating some rectangles surrounding my sprites for my player and bullet class to detect collisions with the overlaps method in Intersector class of LibGDX. I have a question: When I instantiate ...
3
votes
2answers
129 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 ...
0
votes
1answer
34 views

Libgdx - Jumping, What am i doing wrong?

I really can't work out whats wrong with my code. I have an input listener for gestures, when I Swipe the position goes up on the y axis fine but he doesn't come back down, if with Gravity added. I'll ...
0
votes
0answers
20 views

Trying to get OOP working with libgdx [on hold]

I'm trying to use this player class for my entity stystem, but rendering isn't working right. I'm trying to have each class render on it's own by calling entity.render(); in my core application class. ...
0
votes
0answers
30 views

Libgdx trying to get reflection of ball with plane in 3D space

I just cannot seem to get the right reflection result. Have tried reordering the operations but none seem to work. Hoping someone might tell me what I am doing wrong. Trying to accomplish the formula ...
3
votes
1answer
1k views

Libgdx - IsometricTiledMapRenderer and light shading

I am wondering if there is any way to simulate light shading in Libgdx using an IsometricTiledMapRenderer. Here is my code to draw an isometric map, it's able to be moved around with the mouse and ...
2
votes
2answers
102 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 ...
0
votes
0answers
20 views

Shaperenderer not showing any shapes

I'm trying to use the shape renderer in LibGdx, but I don't see anything. I followed the docs as well, but nothing appears. Is there something wrong with my setup? public class MyGame extends ...
0
votes
1answer
77 views

LibGDX - Executing 2 different touchDown events in the same method

On the bottom left of my screen is a circle with an Arrow and on the bottom right is a circle with a gun. If the player is in jetpack mode and the Arrow "button" is clicked he flies like flappy bird ...
0
votes
2answers
49 views

GestureDetection Issues - How do I make my Actor jump on Swipe?

I've been trying to solve this for hours now, In theory I totally understand how the GestureDetector works but I'm trying to integrate it with the Libgdx SuperJumper Tutorial (for now). Here: ...
0
votes
1answer
31 views

Pan camera within bounds of large image

I have a camera that I pan around a large image which works fine, however when I reach the end of the image I can keep panning on and on, forver. I have looked everywhere for an answer on how to ...
2
votes
1answer
60 views

How do I draw a circular portion of a texture within LibGDX using an OpenGL ES shader?

What is the simplest way to implement a shader to draw a circular portion of a full screen texture where the circle is dynamically resized as part of an animation using LibGDX? Is a shader even the ...
3
votes
1answer
93 views

Image edges are distorted inside game

I dont know how to explain this, so I will use images to describe my problem. The image I made using InkScape: What it looks like in-game (ignore the runner): As you can see the edges are not ...
2
votes
1answer
24 views

How to draw portion of a sprite in libGDX

Let's say i have a sprite like this: and i want to draw the lower portion of it, only the yellow color.. Initially the sprite has dimensions 10x10, i want it to be drawn 10x3 Do i have to ...
1
vote
2answers
57 views

LibGDX: Easy way to draw partial sprites

I am surely overlooking something, but is there an easy to draw for example only half a sprite in LibGDX? I originally thought I could do this with setBounds() but this distorts the sprite.
0
votes
1answer
677 views

Libgdx actor bounds are wrong

The Actor's boundaries are not centered at the ButtonText but I used the setBounds() method. The higher the Y position is, the less centered is the boundary. The weird thing is that i only created ...
1
vote
1answer
269 views

Design pattern for animation sequence in LibGDX

What design pattern to use for sequence of animation that involve different actor in libGDX. For example I am making a game to choose a wolf from a group of sheeps. The first animation played when the ...
0
votes
1answer
110 views

LibGDX multiple enemies animations

Hello everyone i have a question about animating multiple enemies on the screen at the same time. Basically, i figured out how to use the Pool for creating enemies and dispose them after use etc.. ...
0
votes
0answers
40 views

Will Android apps made with libGDX be slower the normal Android apps? [closed]

What I mean if is if I made 2 identical apps one in libGDX and one in the normal SDK would the libGDX one be slower? I would think not because I believe libGDX still turns your files into .dex files ...
0
votes
3answers
48 views

Why should i set glClearColor and setProjectionMatrix in render method many time in LibGDX?

import com.badlogic.gdx.Game; import com.badlogic.gdx.graphics.OrthographicCamera; import com.badlogic.gdx.graphics.g2d.SpriteBatch; public class MyGame extends Game { public OrthographicCamera ...
0
votes
1answer
115 views

SelectBox in LibGDX doesn't display and freezes the program after a click

I am currently trying to apply an overlay with LibGDX over my 3D ModelBatch. Everything works fine except for the SelectBox. Once instanciated, it shows up on my screen I can click on it once but then ...
0
votes
2answers
2k views

SpriteBatch being drawn outside of Stage?

Currently working on my first game, though running into some problems with libgx and screen aspect ratio. What I have is a Stage which contains things like menu buttons etc, and the rest of the game ...
6
votes
1answer
1k views

How can I create a fade effect between scenes in Libgdx?

I have implemented a screen fade with Scene2D. It currently fades fades out of one screen to black, then then from that black into the next screen. It would be really awesome if I could fade ...
0
votes
1answer
126 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 ...
1
vote
1answer
34 views

Suddenly cant run project in libgdx anymore

Ok so in a sudden case of nostalgia, I switched my eclipse workplace from my working libgdx projects to an older one. After looking through my old stuff I had some problems switching it back, since I ...
1
vote
1answer
86 views

LibGdx - Move sprite in the direction of other sprite

I'm kind new to LibGdx and I'm still learning. I'm working on a small game project to learn this nice framework. However, I'm having some issues with my game. My game is a top down shooter. There is a ...
0
votes
2answers
97 views

LibGDX - Best way of scrolling background

I'm new to LibGDX and i'm trying to implement a screen where i have a guy running and the ground under him scrolling to give impression he is really running in a sidewalk for example. The ground ...
0
votes
1answer
133 views

Mouse coordinate conversion Libgdx

I have a camera: //Map is a my object that wrapper of TiledMap class In the create method: this.renderer=new OrthogonalTiledMapRenderer(this.map.getMap(); this.camera=new OrthographicCamera(); ...
0
votes
1answer
123 views

LibGDX - Accelerometer Problems

I got some issues. I'm using LibGDX. When I hit an object, my Fighter is supposed to fall to the Ground. BUT, because of the Accelerometer, i can still move it up and down eventhough it died. The ...
1
vote
0answers
35 views

Why do I get glitchy graphics when drawing scene with scene2D?

I'm trying to display a simple text for a menu UI using scene2D, but for some reason nothing is being displayed here. The screen displays pure black. public class ScreenMenu implements Screen { ...
0
votes
1answer
76 views

How can I split my entity manager class into a gameworld class and gamerenderer class?

I currently have a libGDX game where I have an entity manager class which is called in the gamescreen. Instead, I would like to utilise it in a gameworld class and a gamerenderer class, but I cannot ...
1
vote
1answer
33 views

Checking if Body is surrounded by other Bodies

I'm trying to make a game like Rampart as practice. I have gotten to the point where I want to check if the castle is surrounded by walls and decide whether to fill in the area and continue the game, ...
1
vote
2answers
91 views

Libgdx: different speed on different devices

I am running a simple Libgdx app that I have wrote, on my Android phone and Android tablet and I am getting the unexpected result of having different velocities when a body is moved. To move the body ...
1
vote
1answer
56 views

Grayscale color mode texture not rendering in libGDX

I am about to develop a game completely in shades of grey using libGDX and just for testing purposes, i created two textures in photoshop: 2048 x 2048 plain white png image with RGB color mode of ...
-1
votes
0answers
29 views

Body.getPosition returns NaN

I'm trying to create my own shooting Ai and for that I calculated at which angle the shooter needs to be depending on the distance from the target. The problem is that a whole lot of times I get this ...
2
votes
1answer
33 views

Libgdx, tiled map - how to reload layer?

In the simple platform game I'm making, when player collects coin, its cell is set to null. Is it possible to recover all cells from layer "coins" after player dies? I have tried multiple things but ...
1
vote
1answer
369 views

Multiple enemy array in LibGDX

I am trying to make a multiple enemy array, where every 30 secods a new bullet comes from a random point. And if the bullet is clicked it should disapear and a pop like an explosion should appear. And ...
2
votes
1answer
29 views

Java Libgdx: How do you add cells to a TiledMap?

I'm trying to make a Side-Scrolling game that will allow you to place/remove tiles. I'm using the TileMap Editor to render the custom Tilemap but is there any way to add tiles? I have it where I can ...
0
votes
1answer
30 views

Clearing a libGDX pixmap

Is there a way to clear a libGDX Pixmap? Or is the only way to dispose it and create a brand new Pixmap?
0
votes
1answer
455 views

How can I implement online high score in LibGDX?

I found some posts that said to use Google Play Services. What about other platforms? Is their some libgdx library that I can use to implement it in core section or do I need to write separate score ...
0
votes
1answer
74 views

Loading TextureRegion with filter diff from that of texture it came from

I am using libgdx . While packing my texture atlas I have set the filter for mag and min to Nearest . But for just one region I wish to draw it with linear filter . Is it possible to have different ...
0
votes
2answers
65 views

How to fix the character flip when using an orthographic camera in libGDX

I used an orthographic camera to follow the character (player), but the problem is that my character is flipped. There are no tutorials on how to fix this. Please help as fast as possible. Here is ...
1
vote
2answers
32 views

ScrollPane scrolling velocity

I'm working with a custom ScrollPane, but I can't find how to change the velocity of scrolling (not on fling action). Can anybody tell me how reduce scrolling velocity on calling setScrollY() or ...
0
votes
3answers
361 views

Libgdx getting screen size

I'm working on libgdx project. I basically recreate my game which I coded in xna to make it available for android. Here's the problem android has many screen resolutions, and I want to know how to get ...
0
votes
1answer
41 views

How do I draw an object that I always want to appear in the same place on screen on a scrolling orthographic camera using lib gdx?

So I want to make an endless scroller game and the orthographinc camera is scrolling downward so i want the character to stay with the camera. I'm not sure how to aproach this i've been looking a lot ...