Java is both a popular object-oriented programming language and runtime environment which allows Java programs to run unchanged on most hardware and software platforms.

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3
votes
1answer
95 views

Fixing the size?

My app isn't compatible with all screen sizes. When testing on a small size, my textview overlaps with my button. So, as suggested on the Android Documentation, and many stack overflow pages, I ...
0
votes
2answers
625 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 ...
5
votes
1answer
239 views

What's the best practice for a progress bar in OpenGL ES 2.0 (Android)

As the title says, what is the best practice for a progress bar in OpenGL ES 2.0 on Android ? My attempt: I make a texture (could be a single colour or otherwise), and then stretch that texture from ...
1
vote
1answer
38 views

Binding tiles with Rect

I'm having trouble binding tiles with Rect. I've successfully bound other objects (such as the player, trees etc) in my game with rectangles but I'm unable to do the same with the tiles and I don't ...
-2
votes
0answers
14 views

libgdx - 2D Ball Box collision

I want to make the ball reflect when it touches the rectangle like in the picture below. The player can move the ball by moving his finger around the touchscreen and put the ball inside the box. After ...
1
vote
3answers
264 views

Gradual rotation of an object in Java

I'm using Java to learn some movement algorithm. I would like to implement the "wandering" algorithm, but in order to do it, i should understand how to rotate an Object gradually. Actually, my Player ...
2
votes
1answer
51 views

Anti-Aliasing Problem

So, I was annoyed by how the HUD for my GameState was very pixel-ated and I wanted to change that through the use of anti-aliasing. However, it works with a small exception: It adds all these lines ...
4
votes
2answers
160 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 ...
1
vote
1answer
150 views

Correct way to integrate scaled axis angular velocity into a quaternion

Across my travels on the internet I have came across to ways of integrating a scaled axis angular velocity into a quaternion. The first way converts the angular velocity into an axis angle quaternion ...
0
votes
1answer
28 views

onHold input libGDX

I want to have onHold or onTouch input for my game. So as long as the user touches the screen something happens (a car moves) and when he stops touching the screen it stops. How do I do that? I want ...
0
votes
1answer
221 views

How to use Java 8 with Lib GDX in IntelliJ?

I have set the jdk to Java 8 and I have modified all the build.gradle files in my project to have sourceCompatibility = 1.8 instead of 1.6. My problem is that while it does work on Desktop it doesn't ...
1
vote
1answer
66 views

Java game LWJGL input doesnt work properly

Im making a game in LWJGL 2 and Slick2d. Im trying to add an item to my inventory by releasing a key (the inventory system works properly, the part where I have to see if the button was RELEASED is ...
2
votes
2answers
311 views

Laggy empty project at 60FPS

@Override public void create() { batch = new SpriteBatch(); img = new Texture("badlogic.jpg"); } @Override public void render() { Gdx.gl.glClearColor(0, 0, 0, 1); ...
0
votes
0answers
18 views

How could I add XBox 360 Controller handling support to my game?

The title says it all. I'm making a 3D Open World game with OpenGL and LWJGL in Java, and I really need to move in several angles to fully feel inside the game. The problem is that I couldn't find any ...
-1
votes
0answers
12 views

On touch input Libgdx [duplicate]

I want to have an on hold or on touch input for my game. So as long as the user touches the screen something happens (a car moves) and when he stops touching the screen it stops. How do I do that
-1
votes
0answers
51 views

Implementing gesture detection in LibGdx

what I tried: public class PlayState extends State implements GestureDetector.GestureListener { private Protagonist bird; private Texture bg; GestureDetector gestureDetector; ...
0
votes
1answer
991 views

How handle nifty initialization in a Slick2D state based game?

I'm using Slick2D and Nifty GUI. I decided to use a state based approach for my game and since i want to use Nifty GUI, i use the classes NiftyStateBasedGame for the main and ...
3
votes
1answer
132 views

Creation of a tiled map editor polyline in box2d is not working correctly

I'm currently trying to create a box2d polyline object in my libgdx game, but it's not working as expected. To get a better picture of my subject, have a look at how it should look like, and how it ...
7
votes
2answers
2k views

SQLite in libGDX

Does anyone have an example of how I can use SQLite in libGDX? I have a class in my original Android code that allowed me to easily access a database but I can't seem to find anything equivalent to ...
0
votes
1answer
65 views

How does one structure a Player GUI

I am using Java and the Slick2D library. I've been testing around with ways to develop a Player Graphical User Interface (GUI) (to show armour, items picked up, weapons equipped, etc). The one ...
0
votes
1answer
217 views

How to zoom and scroll in libGdx?

I am trying to both A.) Pinch zoom my game scene and B.) Move (scroll) my game scene but I have not found many examples. I learn more by examples than by reading API documentation (although I am ...
0
votes
2answers
74 views

Round position to center of current grid position

The title may not make sense, nor may the question - I'll try nevertheless. I'm attempting to make a game similar to The Powder Toy. Essentially, this is a physics simulation game, where the users ...
-1
votes
0answers
14 views

How do I increase or decrease the background movement speed (libgdx) [on hold]

I making a game using libgdx and I want to know how to increase or decrease the background movement speed this is what i tried public class PlayState extends State { private int tubeSpacing = ...
1
vote
1answer
56 views

How to handle two players playing on one keyboard with Box2D (LibGDX)?

I'm making a racing game with LibGDX and Box2D. I've been using this tutorial to implement the basic physics, and it works properly. My main problem is to implement two different sets of keys ...
1
vote
1answer
92 views

Understanding HingeConstraint in jBullet

I'm using the java port of BulletPhysics engine jBullet. I'd like to make a joints between 2 triangles so that one edge of the first and one edge of the seconds act like a hinge. But I don't ...
0
votes
0answers
6 views

Libdgx and Overlap2D export settings for Android

So I have a problem when exporting assets from Overlap2D to Android Studio project location. When setting up libgdx I set the project to be for desktop and android and selected Overlap2D extension. ...
0
votes
1answer
534 views

libgdx ActorGestureListener.pan() parameters not moving actor in smooth line

I override the pan method in ActorGestureListener to implement dragging actors in libgdx (scene2d). When I move individual pieces on a board they move smoothly, but when moving the whole board, the ...
0
votes
2answers
94 views

Where do assets for Minecraft mods go?

I found this link: Where do I store (or how do I refer to) textures for custom blocks? Unfortunately, the answer did not explain where that assets folder actually is. As such, I can't figure out ...
-1
votes
0answers
16 views

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

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 () ...
3
votes
1answer
446 views

Drawing fonts with LWJGL3 with OpenGL

I'm very sorry if this question has already been answered, but since I've been struggling with this for many days I thought I'd give it a shot here. My goal is to somehow render some text on the ...
0
votes
2answers
579 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 ...
2
votes
1answer
44 views

Slick2D Networking Crash

This is my first post, so I apologize if it's been put in the wrong place or something. Anyways, here's my problem: I've run into an issue with running my client-side code in one of my game-states. ...
0
votes
3answers
49 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?
0
votes
1answer
201 views

Java OpenGL Perspective matrix not working

I'm trying to render a simple triangle with OpenGL in Java using LWJGL3. Everything is working great, but the projection matrix (perspective) is not working. In C++ I just used to apply the ...
1
vote
1answer
156 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
votes
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
63 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
612 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
1answer
47 views

Drawing from an ArrayList drawing same image repeatedly (Slick2D)

This is the game I'm working on. I isolated the problem into this class. public class Runa extends BasicGame { int startTime, tracker; public ArrayList<Circle> circ = new ...
0
votes
0answers
20 views

Making my game scalable? [duplicate]

I'm quite new to games development and just recently I've made my first Java platformer. I've been using Graphics2D to draw my spritesheets, but I've heard this method isn't very good in terms of ...
1
vote
1answer
105 views

Java Slick2d lighting using Raycasting

I am trying to make a top down view game in java using the Slick2d library, for lighting I wanted to do something like this : http://www.redblobgames.com/articles/visibility/. I was wondering if there ...
-1
votes
0answers
13 views

Reverse CopyOnWriteArrayList [closed]

How to reverse already sorted (by asc.) CopyOnWriteArrayList, when Collections.reverse(list) gives out error for this type of list? By the way, I need to use CopyOnWriteArrayList.
0
votes
1answer
61 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
votes
0answers
20 views

how to move with update trajectoryPointCount [duplicate]

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! enter code here ...
1
vote
0answers
46 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
55 views

Multiplayer through blocked Firewall Ports?

im currently trying to develop a little game. I thought it would be a great idea to implement coop multiplayer, only lan. So i took kryonet and created a server. On my home wlan it works great im able ...
0
votes
0answers
57 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: ...
1
vote
1answer
234 views

Minecraft Modding - How do I use OpenGL stencil functions alongside the game's GlStateManager?

Note: I am using Minecraft Coder Pack 9.10 for game version 1.8.0 (official release). I am trying to make a multiline text field similar to the game's original net.minecraft.client.gui.GuiTextField. ...