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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Android Game, Blurring effect while moving camera

I have posted this issue on stackoverflow, but unfortunately nobody couldn't find solution, maybe someone here know this. I'm developing Side Scroll 2D Game, using AND ENGINE ...
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2answers
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how should i develop my android game efficiently?

I have attached a image of a flow chart that i made in paint. The image shows how i want to develop my game. I want a game that runs great with smart coding that is easy to update and ad features ...
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1answer
11k views

Java 2D Tile Map and Moving Sprites with threads

I'm having difficulties understanding how to use threads and I'm not sure if my basic structure is right. This is my Board Class: package mortifera; import java.awt.Color; import java.awt.Graphics; ...
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1answer
396 views

Java Tile Collision Detection not accurate enough

How can I make my isometric tile collision detection more accurate, I'm using the Rectangle class from java to detect collisions but because it's a rectangle it overlaps other rectangles which means ...
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1answer
250 views

How can I organize code for views efficiently?

I'm making a video game for the Android platform and I need advice on the overall set up of the activities and views in the code. I don't need actual code, psuedocode will do, but actual code always ...
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2answers
756 views

Android pong clone, having trouble getting the paddle to stop at the screen edge

Well, I'm obviously very new to game dev and android. I've got a ball bouncing around (successfully detecting screen edge collision so that the bitmap stays within screen) and a paddle that the user ...
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1answer
3k views

Should I write my own physics engine, because of networking integration?

I'm currently developing a top down, realtime, zombie shooter. I'm coding this in Java, using JBox2D as my physics engine. I have been coding the networking this week, and am now up to the physics ...
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2answers
1k views

are there any alternatives to developing android apps other than with eclipse [closed]

Ever since I installed the android sdk and avd manager in eclipse for java developers, it's been pretty simple to create apps for the mobile device. The only issue I have is eclipse is way too slow ...
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2answers
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Rendering characters, with cut off limbs (Blender models in Java/OpenGL)

What aspects should I take into consideration for creating character animation and rendering classes if I want to be able to have detachable limbs? I've developed a detailed body system that can have ...
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1answer
809 views

How to move a 2d sprite to a target location while avoiding obstacles?

How can I get a 2d sprite to move to a position clicked on the screen, without bumping into other objects? I'm programming in java using the android API library I have created a surface view and ...
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1answer
573 views

Wanting to make a quick java game [closed]

Hey guys I have experimented in making games in java. So far I have created A text game in JOptionPane that is kind of like Zork but with yes and no buttons (that were changed to "left" and "right"). ...
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2answers
637 views

Designing a unit combat system (java)

I am looking to make a program that will allow me to test units for balance when in combat. The idea is that there will be two teams of so many units of different types. I would loop through a battle ...
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5answers
2k views

How should I implement side-scrolling level design?

I'm working on a college project using the educational Java framework Greenfoot, and as stated above we're making an r-type clone. I've been looking at using an array of strings to populate the ...
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1answer
231 views

Selective jogl texture transparancy depending on bitwise magic?

I have rewritten some code to allow to load bitmaps to be loaded as textures and if a pixel has a max green color component it is marked transparent. What is odd is that I cannot use the value from a ...
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3answers
2k views

How do I efficiently code both the client and server at the same time?

I'm coding my game using a client-server model. When playing on singleplayer, the game starts a local server, and interacts with it just like a remote server (multiplayer). I have done this to avoid ...
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3answers
480 views

3d platformer with 2d point of view

I made my first 2d platformer game using java + swing. Now I want to achieve the same gameplay adding 1 dimension. I think this will require opengl knowledge. I know the basics but i don't ...
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3answers
1k views

Error when trying to use VBO “array vertex_buffer_object must be disabled to call this method”

EDIT I have effectivley re-wrote this question in order to greatly imrpove its quality - see revision logs if you must I have narrowed down my problem to the initialisation phase of my program, when ...
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1answer
1k views

How to install java 3d in ubuntu

I'd recently asked a question for getting started in game development from where I was suggested for the book "Killer Game Programming-Java". On the page there is a java 3d program which needs to ...
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3answers
1k views

Any ideas on reducing lag in terrain generation?

Ok so here's the deal. I've written an isometric engine that generates terrain based on camera values using 2D perlin noise. I planned on doing 3D but first I need to work out the lag issues I'm ...
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3answers
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Ball collisions 'sticking' together

I have a program which simulates many bouncing balls. The balls can bounce off each other and off the sides of the container. The problem I am having is that sometimes when two balls collide, they ...
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1answer
2k views

Andengine Traffic game: moving sprites along path on map

I'm developing simple traffic educational game like https://market.android.com/details?id=cz.allianz.krizovatky.android . When the player taps on car sprite, it started to move with other cars. If ...
6
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3answers
4k views

A more sophisticated ball-paddle collision algorithm for Breakout?

I have a simple breakout game I'm working on. The collision code is solid; things bounce as they should and don't pass through things or do other funkiness, but the reflection is a bit simplistic. As ...
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1answer
1k views

Fire simulation using java and opengl

i'm newly working with opengl. I'm trying to create a simple program that will simulate fire. My question is what are the ways other than particle effects to simulate fire. And can fire simulation ...
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1answer
147 views

3D Location Handling

I am thinking about making a simulator type game that will involve having lots of small objects in a 3D space. What is the typical solution for handling these objects? The first thing that comes to ...
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3answers
1k views

Game Programming in java [closed]

I'm new to this site as well as new in game development, so I need to get a great start for it. Can anybody tell me from where I should start and some books or link are appreciable. What are the ...
2
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1answer
1k views

Steady zoom on center in LWJGL (Modelview)

I am having a problem in LWJGL with zooming in and out. I am using glScaled(zoom, zoom, 1) before glTranslated. There are 2 problems: 1. The rate of zoom speeds up a lot when zooming out (lower zoom ...
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0answers
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How can I change this isometric engine to make it so that you could distinguish between blocks that are on different planes? [duplicate]

Possible Duplicate: Can you shade a specific section of a sprite? If so, how? The terrain is randomly generated. Here is a screenshot: http://i44.tinypic.com/qxqlix.jpg I think you can see ...
14
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1answer
5k views

A* navigational mesh path finding

So I've been making this top down 2D java game in this framework called Greenfoot and I've been working on the AI for the guys you are gonna fight. I want them to be able to move around the world ...
2
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1answer
902 views

Need some help implementing VBO's with Frustum Culling

i'm currently developing my first 3D game for a school project, the game world is completely inspired by minecraft (world completely made out of cubes). I'm currently seeking to improve the ...
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3answers
1k views

How can I change this isometric engine to make it so that you could distinguish between blocks that are on different planes?

I have been working on an isometric minecraft-esque game engine for a strategy game I plan on making. As you can see, it really needs some sort of shading. It is difficult to distinguish between ...
8
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2answers
631 views

What is the primary use of Vertex Buffer Objects?

From what I've read, it seems VBOs are purely for performance. I'm working on a very rudimentary learning project in lwjgl and I'm just trying to figure out what more advanced features of the library ...
5
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5answers
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Checking validation of entries in a Sudoku game written in Java

I'm building a simple Sudoku game in Java which is based on a matrix (an array[9][9]) and I need to validate my board state according to these rules: all rows have 1-9 digits all columns have 1-9 ...
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1answer
203 views

Can I use one set of images to represent multiple sprites in Java?

I've got a game that has 3 basic sprites, at the moment I'm loading 8 images into each sprite for animating. Each character class has a sprite object. if I've got 10 characters on screen at once ...
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1answer
395 views

Almost working 2D Collisions

I'm terribly sorry I'm asking this question YET AGAIN, but I can almost guarantee that this will be the last time I'll have to ask. I'm currently on the verge of FINALLY getting these collisions to ...
3
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1answer
1k views

Collision Detection on floor tiles Isometric game

I am having a very hard to time figuring out a bug in my code. It should have taken me 20 minutes but instead I've been working on it for over 12 hours. I am writing a isometric tile based game where ...
7
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1answer
1k views

Finding which tiles are intersected by a line, without looping through all of them or skipping any

I've been staring at this problem for a few days now. I rigged up this graphic to help me visualise the issue: (from the graph, we know that the line intersects [1, 1], [1, 2], [2, 2], [2, 3], ending ...
3
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2answers
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What is causing these visual artifacts on my OpenGL sprites?

What could be the cause of the defects in my characters sprite? I am using OpenGL ES 2.0. I draw my sprites in a sprite batch that uses UV coordinates from one large texture atlas. If you look around ...
3
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1answer
1k views

Movement and Collision with AABB

I'm having a little difficulty figuring out the following scenarios. In scenario A, the moving entity has fallen to (and slightly into the floor). The current position represents the projected ...
0
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1answer
650 views

MiniMax function throws null pointer exception

I'm working on a school project, I have to build a tic tac toe game with the AI based on the MiniMax algorithm. The two player mode works like it should. I followed the code example on ...
3
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1answer
1k views

Ray picking - get direction from pitch and yaw

I am attempting to cast a ray from the center of the screen and check for collisions with objects. When rendering, I use these calls to set up the camera: GL11.glRotated(mPitch, 1, 0, 0); ...
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1answer
2k views

What can be the cause of sudden lag spikes in my Android game?

My Android game has sudden lag spikes sometimes. I know this is due to something going wrong. My phone has a 1GHz processor so there shouldn't be a problem. Basically I use the Canvas class to render ...
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3answers
1k views

Struggling to get set up with JOGL2.0

I did have JOGL1.1 set up and working, but I soon discovered that it did not support the latest OpenGL, so I started work on upgrading to JOGL2.0 it's not gone too well. Firstly, is it worth me ...
2
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1answer
214 views

Audio Thread as daemon thread

I'm looking to set up two threads in my puzzle game, one for logic/graphics, and one for audio. Am I correct in thinking that the thread that handles the audio should be set as a daemon thread, ...
2
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2answers
168 views

Transition Player Position

I'm currently working on a Java MMO with a pretty solid start, but I've come across an issue I need a little help with. I'm working on player positions. Meaning their X/Y on the screen, if the ...
2
votes
1answer
327 views

Dynamically creating astar node map by triangular polygonal map

My game's map format uses a bunch of triangles to make up the platforms and terrain in 2d. Right now I can set up a 2d array of nodes for the astar algorithm that basically is a bunch of rectangles ...
2
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2answers
1k views

How should I do 3D games through Java on a mac? [closed]

I have been self-teaching myself Java on the mac mostly because the language is cross-platform. Recently, I have been only able to develop 2D games using the Graphics2D class. Now, I want to learn ...
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3answers
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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 ...
2
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1answer
5k views

How move sprite in Java 2d (swing) with keyboard?

I'm practicing some simple techniques with Java swing games, to learn the basics. Right now I'm practicing how to move a sprite... but it's not working! whhyyyy Here is what I've come up with so far ...
2
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0answers
561 views

How to create a collidable map with tiled for cocos2d (Android)? [closed]

I am using cocos2d to create a game for Android. I am making a map in Tiled Map Editor and added a property to the ground tiles. The property name is Collidable and its value is True. Now I have ...
2
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2answers
1k views

Ground for 2D AndEngine game with physics

I am using AndEngine to create a 2D Game for Android platform using Java and AndEngine. I have learned how to use Tiled editor to create tiled maps. The only problem I am having is that I don't know ...