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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114 views

LibGDX controllers: how to fix crashes in JRuby?

I'm using JRuby with LibGDX and it's been going quite swimmingly, save for a crash I experience every time I try to use the controllers extension. Here's a basic rundown: I've required all the ...
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0answers
47 views

Edit spawn location according to vector direction

I'm trying to make a turret in Bukkit (Java). This will shoot an arrow to the players that are in the shooting radius. But now I've a little problem, the arrow gets stuck inside the block where its ...
2
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0answers
226 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
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0answers
840 views

Libgdx ParallaxScrolling and TiledMaps

I implemented ParallaxScrolling for my SideScroller project, everything is working but the tiled map (the most important part!). I've been trying out everything but it doesn't work (see the code ...
2
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0answers
597 views

libGDX using Stage and Actor produces different camera angles on desktop and Android Phone

libGDX using Stage and Actor produces different camera angles on desktop and Android Phone. Here are pictures demonstrating the problem: http://brandonyuh.minus.com/mFpdTSgN17VUq On the desktop ...
2
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0answers
487 views

Rotation of viewplatform in Java3D

I have just started with Java3D programming. I thought I had built up some basic intuition about how the scene graph works, but something that should work, does not work. I made a simple program for ...
2
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0answers
1k views

AndEngine Making Chase Camera Follow Player

I am playing around with the AndEngine Race Game example. I am trying to make the camera follow the car as the player moves around. The Tile Map is larger than the player's screen but the camera ...
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0answers
26 views

LibgGDX drawing two seperate Textures in FrameBuffer

So I am trying to combine multiple TextureRegions in to one by using a FrameBuffer. This works extremely well when the TextureRegions originate from the same Texture object/file but as soon as I try ...
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0answers
57 views

Using xinput vibration with java

I need to use vibration for my java game, which is only available through xinput since I use xbox controllers. How can I achieve this with jna? I've never worked with dlls before so any help is ...
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0answers
30 views

LibGDX: Why look BitmapFont pixelated on a scene2d.ui.Dialog?

When I use BitmapFonts directly on the stage table, the fonts looks normal (not pixelated). But when I use the same BitmapFont with the same size on a scene2d.ui.Dialog, the font looks pixelated. ...
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0answers
68 views

Creating a voxel chunk with a VBO - How to translate the coordinates of each block and add it to the VBO chunk?

I'm trying to make a voxel engine similar to minecraft as a little learning experience and a way to learn some opengl. I have created a chunk class and I want to put all of the vertices for the whole ...
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0answers
84 views

convert image to spritesheet of tiles for isometric map?

is there a way to convert an isometric image (like the first image) to a spritesheet (like the second image), in order to place each image on the isometric map with the code? The map looks like the ...
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0answers
41 views

Box2D random crash when adding joints

I'm currently working on a project which uses Box2D, when the player uses a certain key it should anchor to the ground. For that I use a weld joint, but when I add the joint the game will sometimes ...
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0answers
62 views

java slick2d - gettileproperty returns true when it shouldn't

I'm trying to implement some collision detection to a test game i've been making. I've used TiledMap to create the map and set a property on one of the tiles to blocked=true This tile is then drawn on ...
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0answers
308 views

Checkers make move and take move algorithm

I'm coding a checkers game and I encountered a problem and I'm 99% sure is about how the move is done and taken back. The structure of my game data is: an 8x8 array containing my board squares. ...
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0answers
82 views

3D Camera Y-Axis wrong angle

I am trying to build a camera class, though I am running into a problem. When I move the camera above/below, and try to move towards the ground, I am moved off in what seems to be about 45 degrees in ...
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0answers
196 views

Android and OpenGL, single thread vs double thread

I'm trying to optimize my Android OpenGL ES 2.0 application, and I find myself being CPU bound. After googling, I've found this, which suggest to use a thread for updating objects, and a thread for ...
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0answers
77 views

Cannot distinguish depth in an isometric cube

I am having a problem with distinguishing different depths in my new 'game.' It is a game similar to Minecraft, only it is rendering in isometric format. The problem is, I cannot think of a way to ...
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0answers
194 views

How do I implement a “sliding out of / into” effect on a settings menu similar to that in Angry Birds?

I'm trying to implement a settings menu component similar to that in Angry Birds - a button control that makes an options menu slide out of it and back into it when clicked on. I use scene2d.ui to ...
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0answers
63 views

Need to join 2 bodies via weld joint but not on center of mass

I have successfully join 2 bodies via weld joint , but my problem is I want to join corners of bodies not on centre of mass. Is there any way to achieve this? Above image consist 3 polygon body that ...
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0answers
127 views

Drawing visible tiles - side scrolling

Currently I'm calling drawMap every time repaint is called. This is the code I've written for my drawMap method so far. public void drawMap(Graphics2D g2d) { int minOffsetX = 0, minOffsetY = 0; ...
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0answers
197 views

Block With Given ID Does Not Exist - Minecraft Mod

I have tried to make my own Minecraft Block using Forge, but for some reason, when I use /give Playerxxx 1000 1 the game says, There is no block with id '1000' My Block Code: package ...
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0answers
82 views

Slick2d font rendering makes all other drawings vanish

I'm converting a java game to lwjgl and slick-utils. I've followed the slick2d examples for font loading/rendering but I found that the font shows as a solid box of color unless I add the following ...
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0answers
205 views

Exporting from eclipse with lwjgl using jarsplice

I am in the process of developing a 2D tilebased rpg with eclipse, lwjgl, and slick util. For some reason eclipse seems to be lagging heavily which doesnt make sense as all i have rendering is a ...
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0answers
193 views

Why do my LWJGL fonts have dots and lines around them?

When we render fonts there are weird dots and lines around the text. I have no idea why this would happen. Here is an image of what it looks like: Our font class looks like this: package ...
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0answers
527 views

How to implement the server-side game loop?

The server needs to handle the physics, because all the movement will be handled by it. So for that I need a game loop. The thing is that the server doesn't have the render part, it's just a console. ...
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0answers
137 views

Aiming with a crosshair with a lot of polygons/triangles

I'm working on a 3d kindof game where I'll eventually be able to modify the shapes present in the environment by pulling their faces with a crosshair. The thing is that I don't know how to achieve ...
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0answers
103 views

How to put OpenGL in a state for drawing blended, colored, nontextured polys?

Using OpenGL1.1 (sadly) I'm trying to draw a cube, which is colored and alpha blended. It is instead showing up as opaque black. Even without including alpha in the color it still shows up as opaque ...
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0answers
59 views

Creating transparent image with localGraphicsConfig not always working

I'm trying to use GraphicsConfiguration.createCompatibleImage to create transparent images. This creates an empty image which I'm filling with a mosaic pattern later on in the code. This seems to ...
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0answers
2k views

TileMapRenderer in libGDX not drawing anything

So I followed the tutorial on the libGDX wiki to draw Tiled maps but it doesn't seem to render anything. Here's how I setup my OrthographicCamera and load the map: camera = new ...
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0answers
299 views

How do you program the right analog stick of a controller in JInput?

I have the Left Analog Stick programmed and accepting input (moving a character around). (getCompassDir() returns the values of the cardinal directions and NONE means the stick isn't touched): // ...
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0answers
210 views

When attaching AI to a vehicle should I define all steps or try Line of Sight?

This problem is related to an intersection simulation I am building for university. I will try to make it as general as possible. I am trying to assign AI to a vehicle using the JMonkeyEngine ...
0
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0answers
45 views

X, Y, Z rotation around camera

I'm making a 3d orthogonal-projected, game using painters' algorithm in java. I'm able to rotate the objects with incremental rotations (e.g. rotate all objects 10 degrees) using affine ...
0
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0answers
26 views

How to take a screenshot with java from directX

I'm looking for a way to take a screenshot with a Java application of any running directX game. I use the following code Robot robot = new Robot(); GraphicsConfiguration config = ...
0
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0answers
27 views

Collision detection bug in java applet

In my maze game applet I'm having a little bug. Collision detection works but sometimes my character can go into walls. More precisely it detects collision and moves the character into the wall. It ...
0
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0answers
39 views

Handling in-game events/scripts in LibGDX?

I'm testing some RPG-like features in LibGDX, and having difficulty handling events (such as a sign that opens a text box with specific text). I have a basic prototype method to handle events, ...
0
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0answers
44 views

Libgdx/Box2D PolygonShape has no position… well, what now?

As my prototype works perfectly fine I want to advance to more fun areas of the project and add a more complex player-character body. So for Box2D I figured I'd need multiple fixtures, like one for ...
0
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0answers
18 views

LibGDX ShapeRenderer graphical glitches

So drawing something static on the screen with the ShapeRenderer is fine but whenever I try to move something it starts glitching out. Here's a vine to show what I mean: https://vine.co/v/OBxFi1P2IO9 ...
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0answers
59 views

Java Libgdx - Fire bullets

This is my project structure! I am using Java Libgdx I want to make my Man class shoot the bullets from my bullet class. To make it more clear for example the spaceship game that you shoot ...
0
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0answers
27 views

Camera rotation issue Libgdx

I have a OrthographicCamera and I want to rotate 90° it, but when I rotate it seems to be shifted more to the right. Before rotation: http://postimg.org/image/tc9jpq9zr/ After ...
0
votes
0answers
30 views

Use LibGDX 2d particle editor with text?

Is there an easy way to use text in the LibGDX 2d particle editor. I want to show a score with an animation. Or must I create for each text an image (and a ParticleEffect instance)?
0
votes
0answers
40 views

Client side latency when using prediction

I've implemented Client-Side prediction into my game, where when input is received by the client, it first sends it to the server and then acts upon it just as the server will, to reduce the ...
0
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0answers
42 views

LibGDX - How to move Actor with fingers Code?

I am completely new to Game Development. I See all these Questions and Answers and Codes and I have no clue what to do with them. I need some Guidance. My Plan: I want my Actor to move up and down, ...
0
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0answers
101 views

Proper way to load pixel art textures for 2D graphics

I am working on developing a game using LWJGL which is the java bindings for OpenGl. I have just finished the code for loading and animating sprite sheets using a png and xml file. When the texture ...
0
votes
0answers
26 views

[LibGdx]Moving a fixture on a body

I'm working with Box2D and I have a basic platform and a box bounces off of it. // Static Platform bdef.position.set(160 / PPM, 120 / PPM); bdef.type = BodyType.StaticBody; Body b = ...
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0answers
84 views

Gdx.graphics.getDeltaTime(); Returns 0

I am coding a game in Java using Eclipse and Libgdx. I am trying to make an object move until it reaches a certain random point. I am relying on delta time to make the objects speed the same on ...
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0answers
57 views

Ray-Triangle Intersection Detection using Barycentric Coordinates

I am attempting to convert the algorithm from http://www.cbloom.com/3d/techdocs/fast_ray_tri.txt to java code, but my solution does not function correctly. The only intentional change I made was for ...
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0answers
39 views

Libgdx project “Not Responding” when in debug mode

So the problem I am encountering is that whenever I attempt to debug my Libgdx desktop project and Android project the "app" is constantly "frozen" or "Non responding." By this I mean that I cannot ...
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0answers
42 views

JBullet quaternion to Euler angle conversion causes strange flipping behavior

I am making a game using JBullet (a Java port of C++'s Bullet library) for the physics and LWJGL for the graphics. However, JBullet measures angles in quaternions and LWJGL uses Euler or ...
0
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0answers
115 views

Android - OpenGL ES 2 - Cube with different texture in each side

I need to create a 3d cube, with a different texture on each side. Here is my cube class, which my other classes extend: import java.nio.ByteBuffer; import java.nio.ByteOrder; import ...