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
965 views

Resource not found?

When I write in my terminal, java -jar myJar.jar, it gives me an error "Resource Not found res/playNow.png" When I run it in eclipse, it does not give me any errors about this image. My folder in my ...
0
votes
2answers
180 views

Unable to access jar. Why?

I was making a game in java and exported it as jar file. Then after that, I opeed jar splice. I added the libaries and exported jar. I added the natives then i made a main class. I created a fat jar ...
3
votes
2answers
1k views

Checking if an object is inside bounds of an isometric chunk

How would I check if an object is inside the bounds of an isometric chunk? for example I have a player and I want to check if its inside the bounds of this isometric chunk. I draw the isometric chunk'...
5
votes
4answers
1k views

Better way to generate enemies of different sub-classes

So lets pretend I have an enemy class that has some generic implementation and inheriting from it I have all the specific enemies of my game. There are points in my code that I need to check whether ...
-1
votes
1answer
546 views

How to make an Image still when at position at Slick 2D?

I wanted to have a build functions. When I press for example 2, the image will appear with my character. The question is, how do I stop it from following my character //build //I created many ...
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votes
1answer
115 views

Questions about an Engine Java [closed]

so I am going to start developing Java games (3D) but I have a few questions. So I dont know if I should use an engine or make my own. I feel like I am "cheating" if I use an engine to make my game. ...
2
votes
1answer
1k views

How do I make my Slick2D game fullscreen?

How do I make my game fullscreen? It's always in windowed mode. I'm using Eclipse on a Mac.
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votes
1answer
1k views

What causes the pre-1.8 Minecraft far lands to generate? [closed]

Before Minecraft Beta 1.8, when you reached about x:3000000 y:3000000, the terrain generator would freak out and begin generating broken scary land. What went on in the MC code to provoke this? Why ...
5
votes
5answers
2k views

Do I really need to “learn” C# for XNA if I know Java?

I want to start developing in XNA. As of now, I do not know C#, but I would consider myself "good" at Java. I have looked at some C# code and it looks almost identical to Java. After looking at Java ...
0
votes
1answer
3k views

How to create a simple side scroller game [duplicate]

Possible Duplicate: How to create games with scrolling? I'm still pretty new to game programming and any tutorial that I have worked with stuck to only games with the initial screen. I want to ...
1
vote
3answers
861 views

Will having many timers affect my game performance?

I'm making a game for android, and earlier today I was trying to add some cool stuff to my game. The problem is this thing needs like 5 timers. I build my timers like this: timer += deltaTime; if(...
1
vote
2answers
399 views

How do I make a Java gave without a JFrame?

I am working on an arcade-like game, and so far, I have been using JFrame. All the action occurs in the JFrame basically. However, I've noticed that a lot of games that you install on a computer don'...
1
vote
1answer
838 views

Edge flicker when moving Camera (2D)

I have a Orthographic camera. I have a fixed landscape texture and a texture for a moveable object. If the object moves to the right the camera will also move with the object. When I also draw an ...
2
votes
3answers
611 views

How can I create a spritesheet animation with big images?

If I have a 200x200 pixel sprite, and I want to create an animation for it with 30 different frames, how can I accomplish that? I can't put them on one texture/spritesheet.
6
votes
3answers
7k views

How do I make an entity move in a direction?

I have an Entity instance which is updated every game tick. Let's just assume that entity moves forward constantly. I'd like to be able to give the entity's angle to a function that makes it move in ...
4
votes
1answer
1k views

Networking library compatible C++ and Java

There is any networking library like eNet compatible with Java and C++? 'm trying to find a way to communicate an Android game in Java with a C + + server, but I prefer to use a network library ...
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votes
2answers
164 views

How do I add Destroy with radius on Java Slick2d? [closed]

For Example, There is a tree(image) and i want to destroy it. I want my character only destroy it (For example the character must be facing the tree to destroy it and there must be a range were you ...
4
votes
2answers
2k views

OpenGL Lighting [duplicate]

I have a simple day and night cycle by at day disabling OpenGL lighting and at night enabling openGL Lighting. When I enable everything appears darker. My question is How would I make it that at a ...
1
vote
1answer
419 views

Fixed texture size (Pixel) libgdx, java

If I resize the window (e.g. fullscreen) the texture size also changes! I want that behaviour: If I change to fullscreen you will see more of the game world. The size (Pixel) of the texture stay the ...
12
votes
2answers
7k views

LibGDX - Check if currently on Android/Desktop

I'm using LibGDX and flixel-android to build a Desktop/Android game. It feels like there should be a way of checking to see if you're currently being run on an Android device, the Desktop, and so on, ...
1
vote
2answers
1k views

Who use javaFX for commercial quality games? [closed]

Are there any companies work with javaFX for building videos games ?
0
votes
1answer
711 views

j2me Bitmap font

Well i have found a tutorial how to make a bitmap font from an image. (http://devlinslab.blogspot.com/2007/11/using-custom-fonts-or-bitmap-fonts-part.html). So I have used this code in my game and ...
0
votes
2answers
1k views

Rendering another screen on top of main game screen in fullscreen mode

my game runs in fullscreen mode and uses active rendering. The graphics are drawn on the fullscreen window in each game loop: public void render() { Window w = screen.getFullScreenWindow();...
3
votes
3answers
4k views

Drawing graphics in Java game

I am quite new to game development, so here is a question (maybe a stupid one): In my sidescroller i have a bunch of different graphics objects that i need to draw (player, background tiles, ...
2
votes
1answer
1k views

2D game world creation (libGdx, java)

I'am starting to develop a 2D game with motorbikes. My Question now is: When my bike reaches the right edge the world should move. (Like in that game: Game example) My first thought was to implement ...
2
votes
1answer
891 views

Pathfinding and BSP with Box2D

I'm looking into implementing AI in my 2D side-scrolling platformer, and I'm looking into using algorithms such as A*. For many kinds of pathfinding, we need some sort of grid or systems of nodes or ...
3
votes
1answer
2k views

Andengine. Put bullet to pool, when it leaves screen

i'm creating a bullet with physics body. Bullet class (extends Sprite class) has die() method, which unregister physics connector, hide sprite and put it in pool public void die() { Log.d("...
0
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2answers
182 views

sprite animation system height recalculating has some issues

Basically, the way it works is that it update the frame to show every let's say 24 ticks and every time the frame update, it recalculates the height and width of the new sprite to render so that my ...
2
votes
2answers
368 views

Updating “Inactive” Chunks

In my game, the only chunks (4x4 areas of tiles) in memory are the ones that the player is in. However, chunks need to have updates applied to them over time. A (likely) well-known example would be ...
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votes
1answer
2k views

Is the game Wakfu really fully coded in JAVA? [closed]

If so, this shows that you can develop amazing logic/graphic wise games with JAVA. I think this should be used as an example when people ask about games developed in java instead of just mincraft and ...
1
vote
1answer
3k views

PokeMMO. How they do it? [closed]

Well PokeMMO is a JAVA game project which basically is the original FireRed title for the GBA made online. They know this type of projects don't last long because of the copyrighted material used, but ...
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votes
2answers
1k views

Coding games similar to Machinarium in Java? [closed]

I wan't to see how great of an idea is to start a game project like Machinarium coded in Java. I'm not really good at Java yet, but it's the programming language I decided to go with first. Not really ...
4
votes
1answer
604 views

Android Java: Way to effectively pause system time while debugging?

In my project, I call nanoTime and use that to get a deltaTime which I pass to my entities and animations. However, while debugging (for example, stepping through my code), the system time on my ...
2
votes
1answer
433 views

How do I efficiently generate chunks to fill entire screen when my player moves?

In my game I generate chunks when the player moves. The chunks are all generated on the fly, but currently I just created a simple flat 8X8 floor. What happens is that when he moves to a new chunk ...
1
vote
2answers
6k views

LibGdx drawing weird behaviour

I am finding strange behaviour while rendering TextureRegions in my game, only when pausing it. I am making a game for Android, in Java with LibGdx. When I comment out the line "drawLevelPaused()" ...
2
votes
1answer
261 views

Colored Collision Detection

Several years ago, i made a fast collision detection for 2D, it was just checking a bullets front-pixel's color to check if it were to hit something. Lets say the target rgb color is (124,200,255) ...
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votes
2answers
176 views

Bubble sorting my array does not sort it [closed]

I sort an array of chunks by doing this: for (int i =0; i<this.getQueue().size();i++) { for (int j =0; j<this.getQueue().size()-i-1;j++) { Chunk temp1 = this.getQueue()....
1
vote
2answers
161 views

Back to front drawing in an Unorginized array of tiles

I have an Array of tiles in no particular order. How would I do a isometric back to front rendering on it? Do I HAVE to order it?
0
votes
2answers
3k views

Efficient way to render tile-based map in Java

Some time ago I posted here because I was having some memory issues with a game I'm working on. That has been pretty much solved thanks to some suggestions here, so I decided to come back with another ...
3
votes
3answers
3k views

Pathfinding library [closed]

I'm an amateur game developer and somewhat amateur Java developer as well. I'm trying to find a way to have path finding for my game(s). I've first Googled for some existing Java libraries that have ...
2
votes
1answer
454 views

How to draw Isometric game Back to front

What is the for loop or algorytm for a 2D array of tiles that I would render the tiles back to front like this:
2
votes
1answer
450 views

Java getResourceAsStream as local resource

Before using LWJGL, I used the Graphic method, and there I displayed imageicons, and I had the picture file located in the resources. I used: ImageIcon tcard = new ImageIcon(this.getClass()....
1
vote
1answer
242 views

Model View Control Issue: Null Pointer Initialization Question

Good morning again. This is David. Please, I need an urgent help regarding control model view where I making a code that uniquely separating into groups: An Activity Java Class to Display the ...
1
vote
2answers
863 views

LWJGL GL_QUADS texture artifact

I managed to get working LWJGL in Java, and I loaded a test image (tv test card), but I keep getting weird artifacts outside the image. Code: glBegin(GL_QUADS); glTexCoord2f(0, 0); glVertex2i(10, ...
0
votes
1answer
170 views

Gravity stops when side-collision detected [closed]

Please, look at this GIF: The label on the animation says "Move button is pressed, then released". And you can see when it's pressed (and player's getCenterY() is above wall getCenterY()), gravity ...
2
votes
2answers
291 views

Convenience of mySQL over xml

Currently I use XML to store specific information to correctly load a few things such as a list of specfied characters, scenes and music, Once more I use JAXB in combination with standard compression/...
3
votes
1answer
2k views

Where can I find the library for org.newdawn.slick.opengl.Texture

I started making a game in Java, and someone on stackoverflow recommended me LWJGL. I found some examples, and they worked. Later I wanted to test sprites and every example that I found that loads ...
4
votes
1answer
892 views

Island Generation Library

Can anyone recommend a tile map generator (written in Java is a plus), where one can control some land types? For example: islands, large continents, singe large continent, archipelago, etc. I've ...
0
votes
2answers
1k views

Negative timeout value in Variable Timestep loop

I was working on my game loop and I came across an odd problem. The loop was working fine, my states could render, received updates, etc. I then proceeded to create my Input system, which, also works. ...
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votes
1answer
1k views

How do I increase the size of a buffered image to the left and upwards?

I need to know how to increase the size of my buffered image to the left and up, not just the right and down. bI = new BufferedImage(yMax*size*5, xMax*size*5, BufferedImage.TYPE_INT_RGB);