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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131 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 ...
2
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0answers
41 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 ...
2
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0answers
906 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
624 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
544 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
19 views

How do I fill a shape with a texture in Libgdx?

I am making a 2D racing game. I want to fill the area of the ground object with a texture. I have the shapes of the ground (a Box2D shape). If I make images of the ground with textures, it uses a lot ...
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0answers
37 views

How to turn off antialiasing in Graphics class?

I have been using the following code with a Graphics2D buffered image g.setRenderingHint(RenderingHints.KEY_INTERPOLATION,RenderingHints.VALUE_INTERPOLATION_NEAREST_NEIGHBOR); to ensure the image ...
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49 views

Why does my texture-based object picking detect the wrong object?

I am a LibGDX beginner implementing a RISK-like game. I want to let the player select territories by clicking on them, but for some reason, the wrong territory is sometimes detected. The clicked ...
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0answers
88 views

Rotating a scene around a fixed axis

I am looking for a way to move my scene so that when I translate forward/back/left right it moves directly up/down/left/right on the screen. Currently it does do that until I rotate (by anything ...
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0answers
63 views

Google turn based multiplayer automatch criteria

I've set up a multiplayer game using Google's turn-based API. I now want to put some qualifiers on auto-matching and am racking my brain on how to solve this issue... I'm using GetVariant() to ...
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0answers
37 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
60 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
82 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
105 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
51 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
66 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
695 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
97 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
235 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 ...
1
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0answers
81 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
211 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
135 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
213 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
98 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
232 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
211 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
579 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
144 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 ...
1
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0answers
107 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
310 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): // ...
1
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0answers
218 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
30 views

How can I share high scores on Facebook from a desktop libgdx game?

The Android version of my game can share scores on Facebook. How can I do this on the desktop version? Is Gdx.net.openURI (“http://graph.facebook.com/me/feed”); sufficient?
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0answers
7 views

Libgdx Scene2d shows White screen when executed

package com.Darth377Apps.DeepShadow; import com.badlogic.gdx.*; import com.badlogic.gdx.graphics.g2d.*; import com.badlogic.gdx.scenes.scene2d.*; import com.badlogic.gdx.scenes.scene2d.ui.*; import ...
0
votes
0answers
6 views

Libgdx: ModelInstance texture is not rendered on Java8

I have project based on opengl, libgdx framework. It's impossible I think, but when I switch my project from Jdk1.7 on Jdk1.8 I have problem with rendering model's texture. I have no idea how language ...
0
votes
0answers
25 views

Ray casting problem using JOGL

I'm trying to port an old perfectly functioning ray casting implementation from my lwjgl project (FF pipeline) to a new project using JOGL and shaders. My problem is that my ray no longer intersects ...
0
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0answers
25 views

Problem with changing font color in libgdx

I recently noticed that my version of libgdx was way out of date, so I updated from version .9.something to 1.4.1. I copied files for the project I'm working on over into a new project generated with ...
0
votes
0answers
19 views

Change a vertices and display corner of a polygon

I'm currently building a level editor for my game and i'm having some trouble on how to change vertices of a polygon. Basicly i searched the web trying to figure out how to update the vertices of a ...
0
votes
0answers
14 views

Cant Set Image Origin in Table Cell - LibGDX

I am having real issues with my Actors when placed in table cells. I would like to set center Origin to allow me to tween the scale around the center. I am aware that the Table is responsible for ...
0
votes
0answers
26 views

Dynamic VBO update possibly corrupting data?

I want to draw a line between two vertices. On a mouseclick the vertex data will change and I want to update the line to use the new values. I am using a VBO for this and it looks like the update ...
0
votes
0answers
12 views

Removing extra blank window when adding Jmonkey based sound to Java based game

I'm currently programming a simple run and jump game in java. I'm in the process of implementing sound and I'd like to use Jmonkey's sound because I'd like to eventually switch the whole game over to ...
0
votes
0answers
24 views

glBlendFunc() makes primitively drawn quads disappear

i have experienced some issues with glBlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);. Having this invocation in OpenGL init code makes stuff drawn with the following methods ...
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0answers
12 views

Jmonkey Translucent Render Bucket fails to model object last

So I have a weapon model that moves wherever the camera moves and the rotation of the weapon is the same as the rotation of the camera. Additionally I added the weapon to the Translucency Queue Bucket ...
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0answers
15 views

Using debugdraw in jbox2d

I've created a class which implements org.jbox2d.callbacks.DebugDraw. And implemented the abstract methods too. DebugDrawHandler extends org.jbox2d.callbacks.DebugDraw I've instanciated it with: ...
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0answers
31 views

How to get yaw of bullet physics vehicle?

I am using the Bullet Physics port to java, JBullet, and am trying to render a vehicle body that i created in Blender on top of the vehicle chassis. Since i cannot effectively find a way to render ...
0
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0answers
39 views

OpenGL ES 2.0 - Applying rotation to only specific quads within a batch

This problem seems fairly simple on the face of it: How, when drawing a batch of quads using a triangle strip, can I apply a rotation to only one or some of the quads. I've been looking at this ...
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0answers
111 views

Calculating Projectile Movement

I'm having some trouble putting together a method that will constantly move a "bullet" in the same direction accurately. Here is what I have so far public Vector3f moveFromPosition(Vector3f location, ...