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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How To generate spiky terrain in 2D?

I am learning game design, and wanted to know how one can automatically generate spiky terrain (something like this: Cavernaut, notice, the terrain at the sides?). I have heard about midpoint ...
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1answer
92 views

Collision with player following mouse

I'm making a RPG with libGDX. I've loaded a TiledMap and now I'm implementing the player movement. The view is top-down. In my game I want two ways of input: one is using the ARROW keys to move the ...
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1answer
28 views

LibGDX - How to export a texture as a .png onto, say, the desktop

I'm making a game in which I need to export a texture which the user has edited as a .png into a specified location. I'd like it if I could have the default saving window thing (like on other apps ...
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1answer
13 views

Having trouble going from the menu I created w/ Android normally to my LibGDX game file

So I wanted to use Android Studio to create the menu for my game so I created a button with an onClick method that included the Intent i and startActivity(i) but when I clicked the button the app ...
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2answers
86 views

create ipa without RoboVM in a project libgdx

I am creating an application with libgdx , and I wish I could produce an IPA without using RoboVM , because since version 1.9 became a fee . I saw on the original documentation that you can do with ...
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libGDX ShapeRender flicker when translated

I have recently started working with libGDX and have encountered a strange bug. When shapes rendered by a ShapeRenderer they appear to flicker/strobe while being translated. My code looks something ...
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8 views

Libgdx, Gradle, android package naming problem

I'm upgrading my libgdx project to make use of all the new Gradle stuff. However I changed the package namespace from the default generated by gdx-setup but that hasn't worked: when I debug to my ...
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2answers
439 views

LibGDX - Rendering things in different classes

thanks for your time! I'm really new to LibGDX (and Java itself). Which approach should I use to render my different game parts? I want to show a background, the main character, a bunch of enemies ...
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8 views

Libgdx AtlasTmxMapLoader with multiple tilsets

I am working on a Libgdx game which loads Tiled maps. The current map I am working on makes use of two tilesets, one for shadow/light and another for terrain and buildings. The general process I do, ...
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1answer
13 views

Libgdx Box2D random positions and intervals falling bodies

I need to make that objects fall from the top of the screen random intervals and positions. Here's my code where I create lot of objects and add them to ArrayList private void createBalls() { ...
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2answers
3k 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 ...
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1answer
123 views

Too many if statements cause lag? [on hold]

I am trying to make a vertical scroller game with collision tiles on both sides. I'm using Libgdx and android studio. The problem is that i have made every tile as an object with a rectangle for ...
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1answer
91 views

How to detect if two sprites are being touched at the same time?

I tried this: if(spr.getBoundingRectangles.contain(x,y)){ //do this } but how to detect if the other sprite is touched by the second pointer? Then I created two Vector3 for the pointer ...
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0answers
12 views

Creating & loading animation from one class in libGDX

i'm new to libgdx and i wonder if i can create all the animation for my game in just one class so i can just call it to my main game screen class,if it is possible can someone teach me how to do this? ...
3
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1answer
194 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 ...
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16 views

Libgdx tiled map not showing

I'm using a HashMap structure to store and load my maps made in tiled. Currently I have two and I am able to go from mapOne to mapTwo with no problems. But when I go from mapTwo to mapOne, mapOne ...
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2answers
230 views

Accelerometer problems

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 Scroller on the x-Axis though stops. ...
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1answer
155 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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1answer
253 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(); ...
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2answers
232 views

Smooth 1D terrain generation

So I'm pretty happy with my terrain, and the progress on my game. I just want to figure out why the terrain is so steep sometimes. Right now to generate my random seed I use this: seed = ...
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1answer
52 views

Convert transform from world to local space

I have a hierarchical node system. Given a world space transform, I need to obtain the transform for a specific node in local space. My Node class has the following method. public void ...
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1answer
238 views

How to use mipmap with TextureAtlas and AssetManager

I searched on the Internet but couldn't find the way to use mipmaps with libGDX TextureAtlas. I want atlas instead of normal textures because as far as I know mipmap supports only 2^n width and height ...
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1answer
57 views

LibGDX: Is it necessary to set a stage as an input processor when creating a touchpad?

I mean, I've been searching it, they always use set a stage as an input processor after they had added the Touchpadto the Stage because it extends from Actor indireclty(it extends from Widget that ...
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1answer
65 views

Map coordinates to camera coordinates

I have a tiled map which is 3 times higher than camera. When I press on a tile, I want an actor on that tile to show up. This works if camera is not moved. If I move camera a little bit up, so the ...
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1answer
25 views

Adding an InputListener to a Group

I'm trying to detect when a Group actor (my "slot") on my stage is clicked by add an InputerListener to the group. I've added the stage to my InputMultiplexer, but when I click on the actor, nothing ...
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1answer
31 views

2D BoundingBox Collision Detection Problem

I implemented collision detection into my game (using Bounding Boxes) The character is floating above the blocks instead of standing on them. I know what is happening, but I can't figure out how to ...
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2answers
6k views

Handle Input Processor in Device Back Button and Button as Actor

How to handle a event for both key as well as actor added in the screen? My problem is that at a time only one input processor is available either for button or device back button. How can I set input ...
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1answer
36 views

LibGDX - How to draw a filled rectangle behind a text?

I'm new in LibGDX and I want to create a grid based game. Every square will have a rectangle and a text and the background color of the rectangles can change during the game. The problem is when I ...
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1answer
752 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 ...
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1answer
43 views

LibGDX : Scene2D ScrollPane

I want to create a list of buttons with ScrollPane , but I cant create a ScrollPane . In the constructor method in the examples Skins are used (.atlas , .json files) but how to create these files? ...
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1answer
25 views

Libgdx: more efficient way of using Vector 3?

I currently use if(cam.frustum.pointInFrustum(new Vector3((float)posX, (float)posY, 0))) To check if my sprite is in the camera's view. I have to make a new Vector3 every frame wich is very ...
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2answers
77 views

Scale smaller resolution to full resolution libGDX

Short question about the scaling in libGDX. At the moment i have a application with the resolution 480x320. I define this in the main method of the desktop launcher. My whole application is now ...
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2answers
133 views

LIbgdx android app remove fullscreen and show titlebar

I am developing an app using libgdx and i dont want the app to go fullsceen and i also want to show the title bar but the app goes to full screen and hides title bar instead of all efforts. here is ...
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1answer
198 views

LibGDX: Colllisions between bullets and enemies in arrays

I am writing a "Gauntlet" style game. So far I have managed to successfully detect collisions between my player object and my ghost enemy objects, and when they collide they drain the player's energy. ...
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1answer
39 views

How can I communicate between libGDXand the Android Studio Java files?

The reason I'm asking is because I wanted to create a game and I know I could use Scene2D to create the UI but as far as menus go I wanted to use the tools in android studio to at least create a menu ...
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5answers
15k views

How do I make an on-screen HUD in libgdx?

I'm new to libgdx, and I am finding I am getting stumped by the simplest of things. It seems to want me to do things a specific way, but the documentation won't tell me what that is. I want to make ...
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0answers
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My characters do not reverse their velocity, why? libGDX

I have been programming my game in libGDX for a while now and even watched a tutorial on youtube from Brent Aureli. The game I'm going for is kinda like Super Mario Bros but there is one problem that ...
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0answers
50 views

LibGDX: Problems creating custom actor

I am creating a custom class that extends from Actor,just like this: public class MyActor extends Actor { ProgressBar bar; Label nameLabel; TextButton button; public MyActor(String name, Skin skin){ ...
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1answer
44 views

How to make a ball hit many tiled circular objects in LibGDX

Hey guys I've been learning to make games with LibGDX. I did a tiled map in Tiled and the rest of code in java using Android Studio. I could make a ball bounce on the flour using Box2D, but I can't ...
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1answer
165 views

LibGdx - How can I correctly handle tile transitions / connected textures?

So I am making a tiled game and I need to connect textures correctly based on whats next to it. With tiles that had connection really close to the edge of the tile I could just use the 4 bit meathod ...
2
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1answer
41 views

Call touchUp() programattically for sprite in LibGDX

I'm trying to call touchUp() for a sprite i've created in my app. i'm getting success but the co-ordinates do not match while i call it manually. final int x = (int)mySprite.getX() + 10; final int y ...
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1answer
515 views

How to use the zoom gesture in libgdx?

I found the example code for the GestureListener class, but I don't understand the zoom method: private float initialScale = 1; public boolean zoom (float originalDistance, float currentDistance) { ...
2
votes
1answer
64 views

Custom Coloring of Tileset Characters

Games like Dwarft Fortress and Dungeon Crawl Stone Soup are drawing their boards using tiles from a tileset image (I think?). I know you can do color keying and replace the background color with ...
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1answer
355 views

libgdx - Box2d debug draw not correct

I have a problem where the bodies in my debug draw does not draw correctly, take a look: As you can see, there is some space between the dynamic body and the ground. I have checked the contact ...
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2answers
519 views

Libgdx box2d crashing

im making a game in libgdx which i having a bunch of circle bodies floating around in space and when the player's body crashes into another body, that body deletes and creates two smaller bodies ...
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1answer
516 views

Move Box2D body towards mouse click

In a top down game using Box2D, I would like the player's Box2D body to rotate towards the mouse click, and then move to a point on mouse click (move, not teleport). I have worked out the rotation ...
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0answers
31 views

HashMap or LinkedList

I'm working on a 2D game for Android using LibGDX in Java. In my game I got lots of enemies, bullets and other stuff. I hold a hash map, which every cell holds a reference to an array list of that ...
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2answers
36 views

How can I make libGDX text buttons look like clickable buttons?

I have this problem with my game where UI build a nice menu and other stuff with TextButtons and labels, but it doesn't look nice because it's mostly displaying the text of the buttons (which don't ...
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1answer
61 views

libGDX upload z-axis of sprite to graphics card

Background: I want to obtain each fragments position via vertex interpolation to then calculate the light vector for phong shading (L = [Fragment pos] - [light source pos]). Problem: At the moment I ...
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2answers
71 views

How do I induce collision events in LibGDX 3D?

In the code below I've put an example of something I want to do. I have the camera and I want it to stop moving whenever it hits one of the boxes, how do I do this? public class Main extends ...