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
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1answer
93 views

C++ Loading DLL Error [closed]

So I'm attempting to fix a OpenGL in Java problem by making a DLL in C++ and then call it from Java but I've ran into an issue. So I'm testing a basic DLL in C++ and I got this error: "error: ...
0
votes
5answers
661 views

Does Java support OpenGL by itself?

Note: This is long but I explaining everything that you need to know. Don't read half way through it and say "What's the question?". It's simple but long and I need help as soon as possible. So I ...
-1
votes
1answer
248 views

Collision detection tutorials [closed]

I'm supposed to develop a Java game using AWT and Applet libraries. I'm stuck with the concept of "collision detection". If you can help me with any tutorials that explain the concept (how it works) ...
2
votes
1answer
2k views

Can I mix OpenGL and swing?

I'm working on a small game library for me and some people I know that just handles the window and nothing special that we weren't gonna use. I know how to use OpenGL and stuff I just don't like ...
1
vote
1answer
2k views

Handling multiple pressed keys with KeyListeners

I'm making a game Applet with Java that uses KeyListeners to control a paddle (for a game like Breakout/Pong). My basic implementation goes like this: public void keyPressed(KeyEvent e) { switch ...
2
votes
2answers
1k views

Making a player move to my mouse when clicked?

How can I get my player to move to the mouse when it is clicked (like in Warcraft)? So far I have tried: if (Mouse.isButtonDown(0)) { if (X < Mouse.getX()) { X += Speed; } if ...
0
votes
1answer
930 views

Anti- Aliasing a small image?

As you can see above, I have an image of a game I've been working on using Java. Using AWT I added the following: public static void drawImageRotated( Graphics2D g2d, BufferedImage img, ...
-2
votes
1answer
75 views

How to find which dirction to move in a 3D space [closed]

In my game you are controlling a person walking(X and Y) and they can: Rotate view - -180 to +180 Move a direction - Forward, Backwards, Left, Right. I want the Move to get closer to a goal ...
-1
votes
3answers
464 views

adventure game architecture

I would like to make an adventure type game functioning similarly to machinarium or broken sword. The only way I can think of doing this is to draw an image as a background on a canvas and use some ...
-2
votes
3answers
9k views

Writing a server for a multiplayer game

I've been looking on the internet, but I can't really find any good answers to all my questions.. I started to think about writing a little multiplayer game on my own and after thinking and thinking ...
0
votes
1answer
897 views

Please help me with my 2D isometric tile picking [duplicate]

Possible Duplicate: How to convert mouse coordinates to isometric indexes? Okay, I apologise in advance if I make no sense here. Basically, I've got a simple application that takes in a ...
3
votes
1answer
748 views

Implementing a hook (Like pudge in Dota)

I'm coding a new game, which involves hooking. Ive been testing a couple of ideas now and im quite stuck. The player can throw a "hook" which fires away in the aimed direction, until it hits ...
1
vote
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 ...
3
votes
1answer
244 views

AI surrounding algorithm suggestions

I am building up a simulation where predator groups (tribes) try to hunt other agents in the simulation (whom also are clustered in groups). Now I got to a point where members of a group follow their ...
0
votes
1answer
194 views

Good way to store entity data

I'm building an RPG style game, but i have some trouble with storing data from entities. These entities can carry data including but not limited to their location, their graphics, whether they are ...
0
votes
1answer
645 views

Box2D and Slick2D: Graphics bug [closed]

The bug The physics ground represented by a horizontal line. The object is stationary, and seems to be pretending that the ground is lower. This is because the center of the Shape is incorrectly ...
11
votes
2answers
1k views

How well do functional languages perform on Android?

This is a special case of this question that I feel is particularly pertinent. I'm working on a game for Android, and I'm planning on using Scala with libgdx. I'm planning on making a performant ...
3
votes
1answer
1k views

Rotating 3d plane to XY plane

I have a triangle in 3d space and would like to create a grid over the triangle, such as in the image below. The purpose of this is to store information about each block of the grid. In order to ...
4
votes
1answer
779 views

Drawing isometric walls

I'm having some trouble with isometric walls. I'm drawing isometric floor tiles using the back to front rendering method, and it works fine. I also keep my floor tiles lined up properly in a nice ...
-6
votes
1answer
666 views

Java 2D tile map and rendering it [closed]

Please help me! I am thinking of generating different terrains environment every time the game loads again. But i am thinking of loading or drawing a image containing all the units like river, land ...
0
votes
1answer
116 views

Creating a alive object list

I'm currently working on a Java game I know a lot of games created all instances of objects beforehand and then bring then in and out of play when they are needed. Will it be worth it to have a ...
-3
votes
1answer
1k views

Slick2D TileD Map Editor Properties [closed]

So I used the following post to help me render my isometric map in Slick2D: Slick2D Isometric TiledMap Rendering Problem Big thanks and credit to arminb for the code supplied and for the fix to be ...
0
votes
1answer
215 views

How to load images on startup

I want to load all my game's images on the game's startup and have a loading bar to show it's progress. I already know how to create and display the loading bar, but I can't figure out how to load the ...
2
votes
0answers
141 views

Pitch (X-axis) rotation problem [closed]

Situation: From a first person perspective (camera position) I want to be able to grab an object and have it fixed to the center center of the screen while looking up-down (pitch) and looking ...
4
votes
2answers
1k views

Slick2D Isometric TiledMap Rendering Problem

I created a Tiled Map using the Tiled Map Editor. In the Editor it looks like this: Desired State In my java program it looks like this: Actual State My java code is: public class Game extends ...
0
votes
1answer
124 views

Find the footprint of an isometric entity

I'm working on making a 2D isometric engine in Java. I'm getting into collision detection and I've hit a bit of a problem. Characters in-game are not restricted to movement from tile to tile - they ...
0
votes
1answer
489 views

Changing Yaw, Pitch And Roll OpenGL

I'm using LWJGL and OpenGL 1.1 at this time and I was wondering what command is used to change the yaw, pitch and roll?
3
votes
1answer
457 views

How do I export a Java project on Eclipse as an executable? [closed]

I made a Java project with images, external JARs, and natives(the JARs and natives are for LWJGL and Slick). How can I export this as an executable? I already tried JarSplice and WinRun4J, but when I ...
0
votes
6answers
2k views

Can I develop a game on PC in Java and move it to Android?

I have fairly good experience with Java, but new to Android development. I would like to develop a 2D game which would have animations and online play. Can I initially develop this game on my pc ...
2
votes
2answers
238 views

How to stack units in a tile based game?

I'm trying to make it so that no more than 5 units can be stacked on a tile. I have a Tile class that creates each tile's preferences. Should I store the units in an array or arraylist in this class?
0
votes
1answer
727 views

How do I spawn enemies with a delay using threads?

Right now I have this: Thread enemySpawner = new Thread(new Runnable() { public void run() { if(world.getCurrentState() == gameState.GAME) { world.spawnEnemy(x, y); ...
1
vote
1answer
274 views

Alternative to JSF for browser-based 4X game [closed]

I intend to make browser based MMO game. Something from Master of Orion genre but with more accent on command ship operations. I've done some tests and research and turns out that indeed, for ...
5
votes
2answers
838 views

One Dimensional Perlin noise vs Multi-Dimensional

I am reading through a book called "The Nature of Coding" and I am working on porting the examples from Processing.js to Regular old Java. The example I am on uses the following method call in ...
4
votes
1answer
1k views

Need info on creating a tile grid data structure in Java

I'm trying to create a game with a fixed size map (2D Tile array). I suppose I can inherit other tiles from this base Tile, e.g.: a BankTile. Placing and removing tiles is all too easy, but forming ...
1
vote
0answers
126 views

2D Java Networked Game Coordinate Updating [closed]

I'm currently developing a networked 2D MMO-style game in which several thin clients (ran in an applet) are able to connect to a server and well, do MMO-style "things"! Some more background on the ...
1
vote
1answer
126 views

Deciding when to switch focus between UI elements

I've been coding a simple logic game recently and there is a UI decision that has been bothering me. Since certain blocks of logic are going to be used across many levels (e.g. logic to reverse the ...
2
votes
2answers
2k views

How do I get the touch event on a body in Box2d(Java)

I have various bodies rotated at some angle with the help of Box2d in libGDX. What I want is to destroy the body when I click on it, but the problem is that I am not able to get the area definition of ...
0
votes
1answer
702 views

Texture will not rotate with gluSphere

I have a gluSphere generated in my display that is rotating, but having a problem with the texture rotating with the sphere as well. So in a nutshell, no matter how the sphere rotates, the texture ...
1
vote
1answer
196 views

Drawing Projected Vertices/Faces In Order

I recently created a 3d engine, and have gotten to what is (as I've found) the hardest part so far. I need to sort the objects and then draw them. I've looked at sorting algorithms, but my case is ...
1
vote
1answer
280 views

Mapped texture to a gluSphere not wrapping correctly

I have a 3D sphere rendered using JOGL by means of GLUquadric. I'm trying to add a texture but it is not rendering as correctly. Does anyone understand why the texture (upper-right of sphere) isnt ...
7
votes
4answers
475 views

Implementing AI to hide behind obstacles

I am developing an AI simulation of predator and prey. I would like to simulate the AI hiding behind obstacles, if it is being chased. But I am still trying to figure out the best way to implement ...
0
votes
2answers
1k views

Cant import Sun openGL

I've been working with JOGL and I've ran into a problem. The problem is when I try to import import com.sun.opengl.*; on Eclipse, Eclipse doesn't recognize it. Does anyone know where this library is? ...
1
vote
3answers
2k views

How can I remove enemies from my ArrayList after they have died? [duplicate]

Possible Duplicate: How do I best remove an entity from my game loop when it is dead? Right now, I have an ArrayList like this: List<Enemy> enemies = new ArrayList<Enemy>(); ...
1
vote
1answer
832 views

TextureRegions and TextureAtlases in AndEngine

This is my first android game, sorry if my code is bad, any advice will help. I am trying to find ways to improve performance on a game of mine, I'm using AndEngine GLES2. I have a basic question ...
5
votes
4answers
2k views

Should each Entity have its own update and render methods?

First, the questions: Should each Entity (which are classes like Character, Tree, Enemy) have its own update() and render() methods? If that's the case, then should I use Interfaces like ...
4
votes
1answer
529 views

Splitting logic into threads in Java tower defence game

I'm making a tower defence game in Java! It's my first game development. I want to know how many threads Do I need to create in a game, to split logic.. I've made this one: Main App thread (adds ...
15
votes
2answers
975 views

Graphics not being displayed on OUYA

I hope its not too early to be asking OUYA dev questions, but I just got my dev kit and I want to get my game running ASAP! I am using LibGDX as my framework for my game and launching the Android ...
2
votes
2answers
826 views

How to get enemy to follow character using angles? (atan2)

I have an enemy and a character to control. I want to get the enemy to follow the character in a straight line. I already found the angle in which the enemy needs to travel. double angle = ...
0
votes
2answers
94 views

Pathfinding with Less Desirable Squares that are still passable

I have been looking at different path-finding algorithms for my game. I have almost settled upon D* Lite, but have a question. (perhaps I missed it in the documentation) - Are there any algorithms, ...
1
vote
2answers
2k views

Applying Forces to Box2D Bodies

In full disclosure, I am VERY new to box2D let alone the Java version of it. I have a box (here of type Hero) that I am trying to move. I did this by trying to apply a force as follows... private ...