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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1answer
47 views

Java libgdx get clicked square without iter

I would like to detect which square is clicked without iterating over all elements! i don't want to do this anymore for all elements. if( x >= this.getAnchorX()-HalfWidth && x <= ...
0
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0answers
22 views

JBullet - Object is colliding at the wrong location!

I'm trying to make archers walk on my ship. I create the ship mesh like this: { Model mesh = null; try { mesh = OBJLoader.loadModel(new File("res/ship.obj")); } ...
-1
votes
2answers
1k views

Android bitmap placing

I've recently added an explosion in my game, for when enemies get killed, and it works fine and all, but the explosion wont "spawn" on the enemies x and y. The problem is that I'm not drawing the ...
3
votes
1answer
484 views

Java: AI to make a mob face the player working half-way correctly

While creating some basic AI for my "ghost" mob that is just up for testing at the moment, I thought of allowing it to face the player, depending on the player location. I get it to work correctly, ...
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votes
1answer
79 views

How can I perfectly center an image in a window using Slick2d?

Dividing the window's width by two to position it in the middle of the x-axis did not work. What else can I do?
1
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1answer
514 views

Java: See if Mouse is hovering/clicking Sprite

The game I am developing is in which you defend the Cell from the Viruses, and I need the sprites to have a MouseListener for when the mouse clicks on that sprite, it will get destroyed, and I cannot ...
2
votes
1answer
3k views

How to match user click and the sprite object position in libGDX framework

I am using libGDX Java framework for developing a practice game in Eclipse. My game is in landscape mode and I am using sprite image for game assets. Actually I am trying to follow the Kilobolt ...
0
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0answers
32 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 ...
4
votes
3answers
6k views

How do I find a point given an angle and distance to it?

I'm working on a school project creating a tank team in the programming game Robocode. (It's a tank battle game with self-programmed bots, in Java). I'm programming a scout bot that scans, finds ...
0
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1answer
69 views

Libgdx Actor touch undetected

I am looking for detect touch in an actor. The touch in my game is detected in wrong part of the screen. I want to detect touch only on the red circle, here is the code: Static_values public class ...
1
vote
1answer
104 views

LibGDX Tiled Map - how to get embedded objects

I am using LibGDX to learn Game Development. I have reached the phase I am learning to use Tiled Maps. In Tiled map editor, there is a feature where we can pick a tile in the tile set, go to View -> ...
1
vote
1answer
107 views

In Eclipse using libgdx, what does “project description file is missing” mean?

In a sudden case of nostalgia, I switched my eclipse workplace from my working libgdx projects to an older one. After looking through my old stuff I had some problems switching it back, since I didn't ...
1
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0answers
165 views

How to make a sword swing effect

I'm working on a 2d java game on Slick engine and I always wondered how to make swing effects when striking with a sword? How to code something like this? ...
0
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0answers
34 views

How to draw square composed of four triangles ? ( libgdx )

I've a case in which I need to draw square composed of four triangles like in the photo bellow : The triangles parameters are stored in the JDBC , I know how to draw shapes in Lbgdx but this kind ...
0
votes
0answers
87 views

How do I manually create a .atlas file?

I am trying to learn Andengine, and it seems it does not support sprites in any other way other thab a Texture Atlas. I am using the Android AIDE app and importing the older Andengine .JAR because I ...
1
vote
2answers
149 views

Help with Resolving Pixel Perfect Collision

Hi I'm having trouble resolving "Collision detection between axis-aligned bounding box and bitmap (pixel perfect) terrain on a Worms type game". (Read previous question to find more information about ...
0
votes
1answer
305 views

Implementing Spine animations in Libgdx

I've been searching a lot for a guide on how to implement 2D animations exported from Spine to Libgdx, but all I could find was outdated tutorials and source codes. I can handle basic Libgdx but Spine ...
0
votes
2answers
99 views

How would I create classes for each map tile instead of using a tmx? LibGdx

I am making a top down style game using LibGdx that I want to be randomly generated each new game load. I already have the algorithm to generate the array for what tile should be what. But i'm ...
1
vote
2answers
77 views

Making an organized rendering class [closed]

I'm using LWJGL (opeengl wrapper for Java) and Don't know how to make a renderer class for OpenGL. So In Immediate mode rendering I'd do a method like this to draw quadralaterals. public static void ...
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0answers
53 views

How to get GestureDetector to work?(Problem with GestureDetector class)

I am trying to write simple program which would get input from user by swiping in four capital directions. I'm extending GestureDetector.java from libGDX and overriding fling method, but no matter ...
2
votes
1answer
1k views

libgdx collision/picking

I am trying to make something with java libgdx (2D). One thing that I can't figure it out is how to check mouse intersection with (fore example) isometric textures that are not rectangle shaped ...
0
votes
1answer
69 views

Pan camera within bounds of large image

I have a camera that I pan around a large image which works fine, however when I reach the end of the image I can keep panning on and on, forver. I have looked everywhere for an answer on how to ...
3
votes
1answer
180 views

Should UI be part of the game-loop?

I can't really find a good answer to this anywhere, I have never worked on games in a proffessional environment and I am wondering; Do these games render their UI in the main game-loop? That is, do ...
0
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0answers
40 views

Should I handle mobile collision from the mob or projectile? [duplicate]

I have a fast tile collision setup and quadtrees for collision between mobile entities. I have been back and forth in my other games for if I handle projectile-mob collisions in player or mob ...
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votes
1answer
45 views

How to make object to stop moving

I'am making the game in Java, and I'am make the object, and she move, but i don't know how to make it stop. public class Player extends JPanel implements ActionListener, KeyListener{ // Varibles ...
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0answers
22 views

Sprite animation in Java? [duplicate]

I know this question has been asked many times but none of the answers were very clear to me. I'm working on a small Java RPG, and so far I can control a character (drawn onscreen with a .PNG sprite) ...
4
votes
4answers
501 views

How to avoid duplication using client-server model

I am using a client-server model to write a multiplayer-capable game (in Java). Currently the clients and the server are using the same code to run the game logic, in order to enable client-side ...
0
votes
0answers
32 views

LWJGL Using .setIntialBackground and Drawing Textures?

I have been trying to create a game with LWJGL, however I have recently discovered that changing the background color using Display.setInitialBackground() with glClear and trying to draw a texture at ...
0
votes
1answer
89 views

OpenGL ES 2.0 2D-Image displaying

I have followed the official OpenGL ES tutorial to create a working OpenGL-environment. I have been able to do anything I wanted to except for displaying 2D-images. To do so I worked through this ...
6
votes
2answers
12k views

Does Unity let you code in Java?

I am fairly new to Unity3D experience , but I have a very good knowledge of Java and Android development. I am really confused that if Java is at all needed for developing android applications? I read ...
2
votes
2answers
115 views

AI for Shogi, dealing with high branching factor due to drop rule [closed]

I'm writing a Shogi program with a computer player in Java from scratch as my undergradute dissertation project. Due to the drop rule, when the computer player captures a few pieces, the branching ...
0
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0answers
64 views

Store a Unity map on server-side

For a 3d Hack'n'Slash game I am currently using Unity as client and Java wit OGserver (Netty with some game-related features) as Server. I am on the map part of the development, actually I just have ...
1
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0answers
122 views

Accessing variables from non-neighbouring classes specifically in game development (Android) [closed]

Edit Using direct access while breaking the law of demeter looks like this: res.sprite.drawQuad(res.sprite.xScreen,res.sprite.yScreen, mMVPMatrix); Using proxy methods / getters / setter looks ...
0
votes
1answer
92 views

LibGdx Table not firing touch events

I can easily add listeners to the actors within a table, and they will fire events, but if I want an entire to table to have 1 listener and do not care to have differentiated effects depending on ...
0
votes
0answers
45 views

In Java swing, while handling a 2D top down game, how should I handle scaling for quality transformations (mainly screen rotation)

For my top down game, I plan to have screen rotation where entities don't rotate, but everything else does. I am using a raster array to store my image so I don't have to render things stacked on each ...
0
votes
1answer
114 views

Animation fails due to a NullPointerException which I'm certain shouldn't be thrown (LibGDX / Java)

What the title says basically. I've been stuck on this error for a few hours I got it to work earlier but I honestly can't see why its failing now (ctrl + z'd back to the working stage). Here's my ...
0
votes
1answer
105 views

2D planetary system simulation- how to improve gravity model? How to control simulation speed?

I'm making a simple planetary system simulator. I've run into some problems with physics model and simulation speed and I'd like to learn how to fix them. My main class is Body: public abstract ...
0
votes
1answer
79 views

Libgdx distorted texture size

I'm just starting to learn LibGDX and have been having some troubles getting my world size to match with my texture size and box2d bodies. I have a texture 64x64 that I am trying to display but it ...
0
votes
0answers
33 views

Problem with keyListener

I have written some code that makes a labyrinth,and fills the JPanel with my figures (Wall, Player, Road and Gate). I want to move the player with WASD, so I have written the following code. The frame ...
0
votes
0answers
35 views

JBullet - Two RigidBodies will not collide

I am adding two ships into my collision world. (The green dots are the collision shape (an ObjectArrayList) that I am passing to the ConvexHullShape) However they don't seem to collide. In fact, ...
4
votes
2answers
93 views

Best way to deal with a large variety of items?

I am currently working on my first java game and I am having trouble figuring out how I should implement my classes that will have heavy variety. For example, I am considering having an abstract item ...
0
votes
1answer
74 views

Libgdx - Jumping, What am i doing wrong?

I really can't work out whats wrong with my code. I have an input listener for gestures, when I Swipe the position goes up on the y axis fine but he doesn't come back down, if with Gravity added. I'll ...
2
votes
1answer
47 views

JBullet - How can I make my object float on the water?

I'm trying to use JBullet for a ship PVP game. I've got two ships which are meant to rest on the water. Obviously these ships will be colliding, but the problem I have currently is "water" ...
0
votes
0answers
30 views

Shaperenderer not showing any shapes

I'm trying to use the shape renderer in LibGdx, but I don't see anything. I followed the docs as well, but nothing appears. Is there something wrong with my setup? public class MyGame extends ...
0
votes
2answers
71 views

GestureDetection Issues - How do I make my Actor jump on Swipe?

I've been trying to solve this for hours now, In theory I totally understand how the GestureDetector works but I'm trying to integrate it with the Libgdx SuperJumper Tutorial (for now). Here: ...
0
votes
1answer
88 views

Platformer collision advice

I've been trying to implement collision for a platformer but I can't find a good way to get the collision of certain sides without it get glitchy. So i try to get the collision of the top rectangle ...
-3
votes
1answer
62 views

String of coordinates into an ArrayList? [closed]

I have a String with coordinates which looks like this: (These coordinates are loaded from a text files and tells the position of entities) String coords = "0,0 0,1 5,2 7,4 10,5" My question is, ...
1
vote
1answer
1k views

Can't get Depth testing to work (cube faces shine through)

I'm making my first steps with OpenGL with LWJGL. I am currenlty constructing a... wait for it... CUBE. Quite creative... Up to now i made it to three of its faces and thats where the Problems began. ...
0
votes
3answers
137 views

Why should i set glClearColor and setProjectionMatrix in render method many time in LibGDX?

import com.badlogic.gdx.Game; import com.badlogic.gdx.graphics.OrthographicCamera; import com.badlogic.gdx.graphics.g2d.SpriteBatch; public class MyGame extends Game { public OrthographicCamera ...
0
votes
0answers
68 views

Hard time implementing AABB collision into a platformer

I have AABB collision working fine. The problem is I can't get it to work with a platformer style game. The collision makes the player move a bit static when colliding and the gravity wont work with ...