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

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Jmonkey loading texture from fails

I have the following basic code: public void simpleInitApp() { Box b = new Box(1, 1, 1); Geometry geom = new Geometry("Box", b); Texture cube1Tex = assetManager.loadTexture( ...
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1answer
30 views

Java Game not rendering properly

Hello I have a game that you can play(duh). When you start the game a loading screen pops up and on the loading screen I display an image of an eye I drew. In paint.net they eye looks perfect but in ...
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1answer
24 views

Java game loop delta not working

Hello I have game loop where I can change framerate. But when I change framerate to other, delta time not working fine. For example when framerate is lower everything is faster. Here is game loop: ...
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0answers
6 views

Java JBullet rotating rendered rigidbodies

Hello I wan't to rotate object I wrote some piece of code but that don't won't to work. Here is this code: glPushMatrix(); float[] matrix = new float[16]; ...
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1answer
25 views

How to render basic voxel terrain with marching cubes [on hold]

How do I create and render a VBO mesh using marching cubes? Notes: I'm not asking how to generate terrain, but how to create a VBO mesh, from voxel data in the format (x,y,z,material). Sorry if the ...
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0answers
14 views

mouseWorld Coordinates Box2D

I have one simple question in Box2D: if you want to get the world coordinates of mouse, this is the function you gonna use in Java: void update(int x, int y) { if(mousejoint !=0) ...
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0answers
28 views

implement paper folding (origami) on android

i'm working on a game, i have been working with game engines like UDK and Unity for many years, now I come into Android and eclipse, i have a question and im really confused, lets describe. i want to ...
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0answers
12 views

Java JBullet models not colliding

Hello I wan't to do model collsion in JBullet but that don't won't to work. Models look like have some invisble holes. Here the code for creating collsion shape: int triangles_count = (int) ...
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0answers
8 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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0answers
43 views

Java Collision detection

Hello have a game where you look for key cards. Which allow you to open certain doors. for example if u have a red key card you can open a red door. The problem is that when I don't have red key ...
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1answer
43 views

Java JBullet Mesh collsion problem

I have a problem with JBullet mesh collsion. Everything works fine when I create a mesh from my object without scaling, but the problem starts when I want to scale the object. I also tried scaling in ...
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0answers
38 views

Any Way to Optimize My A* [on hold]

Does anyone have any ideas for optimizing my A* Pathfinding method? It works, but creates some unusual behaviors and is not exactly efficient. Pathfinding Method: public void ...
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0answers
27 views

How do i need to start developing my first android game? [on hold]

I have experience in XNA and I want to develop Android game, I do not know where I have to turn ... There is a way to develop Android game in XNA or even Monogame to Andorid? (It is important that ...
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0answers
36 views

How do I use the picture with 2 images as my sprite sheet? [on hold]

I've used Gimp to create 2 separate images. I can get them into my program, the only problem is, how do I make it so that the program knows to only use one image per frame?
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0answers
35 views

Why is my animation not happening? libgdx / java [on hold]

public class Animator extends Player implements ApplicationListener { private static final int FRAME_COLS = 7; private static final int FRAME_ROWS = 1; ...
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votes
2answers
42 views

Why does this simple if-statement that checks my main characters state never get called (Java/LibGDX)?

Been working on this for a while - basically I want my player to perform a front flip when he jumps (screen tap -> player jumps). I wrote the animation class Animator (extends Player implements ...
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1answer
57 views

Java, Crashing with a Shader on Intel HD Graphics

I just got a new computer (Acer Aspire ES1-311) which has an integrated Intel HD Graphics card, and I noticed that this fisheye shader crashes my game (LibGDX game, VM Crash): varying vec2 ...
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0answers
51 views

minecraft source code for use in mods

So I am teaching a class where we will be using java to make minecraft mods. To keep things simple, we are using a third party program to set up the under-the-hood stuff for us (that way we don't have ...
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0answers
31 views

Searching for a good Code example for a Java platformer [on hold]

I am like the titel tells you, I am searching for a example. I learn by looking at things and then taking them apart, so what i need now is a well made platformer. The Platformer should feature ...
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2answers
30 views

Simple LibGDX Pong game drag player instead of getting x position

I got a working pong game in LibGDX but when I touch the screen the player x automaticly jumps to the coordinates I touched. I wan't my game to detect I touched and then move the player to the ...
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votes
1answer
45 views

Java LWJGL - How can I add water to my 3d world?

The title says it all, how can I implement a simplistic water system into my game? I am using Java LWJGL and OpenGL glsl shaders. I am still fairly new to game programming, and a complete noob in the ...
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0answers
13 views

onSignInSucceeded and onSignInFailed not called (Google Play Games Services)

Using the code below, can anyone tell me why my onSignInSucceeded and onSignInFailed callbacks are not triggered when signing in? It works fine if I extend BaseGameActivity, but when trying to extend ...
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0answers
28 views

Looking for a point to start (Tutorial or something) [closed]

I want to make a 2d top-down RPG just like "Harry Potter and the Prisoner of Azkaban" on GBA. (Yeah, I know it's oldskool, but I love it!) Can you guys give me a point to start, like a tutorial or ...
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votes
1answer
74 views

Java LWJGL - Monster follow script not working properly

I have written a script to be set off whenever a player is within a distance of the monster. The script checks if the x position is greater than or less than the players x, and same for the z. (y is ...
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2answers
78 views

Multiplayer game principles

I am developing game using libGDX libraries . I want to create multiplayer mode , where several players can play at the same time in the same room , each player can create his own room and other ...
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2answers
75 views

How does rendering with Swing compare to rendering with openGL?

[summary: Is the performance of Swing at least in the same dimension as openGL [through LWJGL]? If yes, what percentage would you give it? What possible other problems can I expect from Swing in the ...
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1answer
51 views

Why does this impulse not affect the body?

I'm just getting started with Box2d and I'm trying to apply an impulse to a circle but nothing really happens. First I define ball: BodyDef bodyDef = new BodyDef(); bodyDef.type = ...
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0answers
20 views

How to determine the pixel coordinate values of regions in an image? [closed]

I am following a tutorial on how to make a flappy bird clone from http://www.kilobolt.com/day-6-adding-graphics---welcome-to-the-necropolis.html. I am on the part where the actual graphics of the ...
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0answers
12 views

How to experiment for the value of gravity in Libgdx? [duplicate]

I am following a guide on how to play a flappy bird clone in the LibGdx framework. -http://www.kilobolt.com/day-5-the-flight-of-the-dead---adding-the-bird.html I am currently on the part where the ...
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votes
1answer
65 views

Java game runs slower and slower as game runs longer [closed]

I know that this question may be considered off topic, but this is a significant problem. Problem: I have in a java game that I am working on. The FPS counter starts at 250 FPS and in about 2-4 ...
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0answers
18 views

Google Play Games: onSignInFailed() and onDestroy()

I just had an error while testing my game, this is an update that I'm working on and it's never done this before (and I've launched this game on various devices literally hundreds of times, so it ...
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0answers
27 views

Is there a way to implement agent simulation for a city builder in Java? [closed]

The agent simulation will be used in a city builder for things like traffic or people who will have jobs, homes and they will have to travel via computed routes. Is there a way to implement something ...
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1answer
34 views

Creating a separate renderer for entities in a 2D game

I'm making a 2D shooter game. As of now, every entity "draws itself", meaning every renderable entity has a draw function. I know it is better if rendering is handled separately, but how can I achieve ...
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0answers
14 views

Android View (Splashscreen) Vanishes after phone woken up from sleep

My game uses OpenGL ES 2.0 and I have a splashscreen which uses a standard Android View. This plashscreen is shown on top of the GLSurfaceView and then simply removed once everything has been loaded ...
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2answers
102 views

How do I limit the rotation speed of a mouse-following object?

I am trying to make a 2D top-down game where player controls a spaceship. The spaceship (a rocket) is just a sprite following the mouse cursor with a fixed speed and is always pointing toward the ...
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0answers
31 views

Libgdx getting random position on screen is null?

So, I want to get the random position on my screen to spawn enemies on them. but here's problem. int randX = r.nextInt(screenWidth); int randY = r.nextInt(screenHeight); Apparently these are null, ...
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0answers
56 views

Create a Minimap of a Tiled Map with LIBGDX

thanks for stopping by to help! Having a little trouble with OrthogonalTiledMapRenderer. I've got a Tiled map that is 250x250 tiles, each 16x16 pixels. Trying to use a separate camera to draw a ...
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1answer
68 views

Multiplying by delta not giving smooth movement

I started working on my first proper game but reached a problem straight away. In short I have a game that runs most of the time at 60 fps. ( I am using Libgdx a popular Java framework) but my game ...
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0answers
30 views

Java LWJGL - How can I click to interact with objects?

I want to be able to click on a monster to walk to him and start attacking him. The part that doesnt make sense to me is the conversion between the mouse position, and the actual terrain position. ...
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0answers
55 views

Reading a file with unknown encoding [migrated]

I use libGDX for developing a game for Android platform. In my game, I'll have to parse some file that contain some settings (skin customisation, user map reader). My current code works for, at ...
0
votes
1answer
133 views

AI movement in 2D

I've got a prototype of a game I've been mocking up and found myself struggling to find a solution for AI movement in a 2D tile based game. Here's the issue: The player is free to roam throughout the ...
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0answers
20 views

Android: ACTION_POINTER_DOWN Called Multiple Times

I hope someone can help me here My code is below and I can't figure out why the ACTION_POINTER_DOWN case is being called multiple times (sometime twice, sometimes 4 times, but always multiple times). ...
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votes
1answer
53 views

OpenGL 4.4 LWJGL - How can i render text to the screen

I have been told that you need to create a texture atlas for the font, and individually assign each character to a texture and add them up to create the string you want to produce. This seems a little ...
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0answers
85 views

Implementing a game loop with interpolation

I am trying to implement the Game Loop interpolated found in this website http://www.gameprogblog.com/generic-game-loop/. Here is my implementation: long frameRate = 50000000; int maxUpdates = 3; ...
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0answers
25 views

Java Slick2D Image Glow Effect

How can one achieve a dynamic glow effect in Java Slick2d? I want an image to be surrounded by a glow when I move my mouse over it for example. Example: No glow Glow Is it possible to make this ...
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0answers
26 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 ...
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2answers
41 views

Adjust bitmaps according to screen ratios on android

I always thought that pixels were square... it turns out i'm wrong, and I am quite worried by this. This means that if I draw a circle, it will be round on my screen but it could be an ellipse on ...
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2answers
82 views

How can I end my game when the right character statistics get to 0?

I'm creating a text-based RPG game. In my game, a player has five different stats, which might decrease over time as the player does certain things. public static int HP = 100; //CHARACTER ...
2
votes
3answers
197 views

Generating 3D-like effect

I'm making a 2D sidescroller game and want to give the blocks a 3D like effect. This way it looks like the player is walking on 3D blocks while walking on a 2D plane (thus having only x,y ...
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votes
1answer
45 views

Why table in libgdx game give wrong position

Can anybody guide me, I am creating a table in libgdx game on menu screen to set different buttons on my screen. here is the code for table draw table.setBounds(0, 0, Gdx.graphics.getWidth(), ...