Tagged Questions
0
votes
0answers
5 views
When and how to apply affine translations to vertices of a mesh with LWJGL
So, I have a rigid body class, containing a list of vertices and a 4x4 transformation matrix. At the moment, I'm applying the transformation matrix to each vertex individually, and am unable to revert ...
0
votes
0answers
15 views
Slick2D changing image's color with drawFlash and using alpha
I have an image, where I have a round soft white feathered ball in the center of it.
I plan to use it for my lighting in my 2D game.
I could not find any proper way to drawing lighting with many ...
0
votes
0answers
23 views
Slick2D/LWJGL Drawing coloured lights problem
I am using the Slick2D engine.
I've followed this snippet for creating light sources.
I have followed step step, added what is actually important for me, and tested it and the lighting effects ...
0
votes
0answers
20 views
How to render multiple VBOs in LWJGL
I'm still trying to grasp the understanding of VBOs. When you create the floatbuffer, I was told if you keep adding to the put, you would get more points for a shape with more points. My problem is, I ...
0
votes
0answers
40 views
Collision between player and heightmap
Im programming a small project, an opengl height map.
It is build of triangles, which points are fit to the right y position (read out of an image).
The player is represanted by a cuboid. (p1, p2, ...
0
votes
0answers
68 views
Using VBOs for the begginer
I've spent the past 10 hours trying to understand this and couldn't get any good help. I whatched a youtube video on VBOs and have whatched it many times and tried many things, but I STILL DON'T GET ...
0
votes
0answers
44 views
(LWJGL)How would a game patch work
I made a game in java that I plan on selling some day. When I do eventually release it,I want people to receive patches instead of buying it again. How does a game patch work, and where the heck do I ...
0
votes
1answer
60 views
LWJGL/Java - Implementing a writeable text box?
I would like to create a writeable text box where a user can input text into it. A nice "send" button that the person could click to send the text to the server would also be nice.
I currently haven ...
0
votes
1answer
56 views
How to achieve a Gaussian Blur effect for shadows in LWJGL/Slick2D?
I am currently trying to implement shadows into my game, and after a lot of searching in the interwebs I came to the conclusion that drawing hard edged shadows to a low resolution pass combined with a ...
0
votes
1answer
20 views
Slick UnicodeFont displays in different location depending on the screen size?
I am using the Slick2D library to draw text. The text draws perfectly, however it is in the wrong location!
I could easily draw it in the correct location, however the problem is that the "correct ...
0
votes
1answer
72 views
What is “immediate mode” in LWJGL?
I am not sure what "immediate mode" is in the context of LWJGL. I think it's when you use gluPerspective() function?
0
votes
1answer
30 views
Get stick analogue XY position using Jinput in lwjgl
I want to capture the movement of the analogue stick of the gamePad.
is there any equivalent function to this?
public void mouseMoved(MouseEvent mouseEvent) {
mouseEvent.getX(); //return the X ...
-1
votes
1answer
70 views
How do I put different textures on different walls? LWJGL
So far I have it so you are running around in a box, but all of the walls are the same texture! I've loaded up other textures for the walls (I want the walls a different texture than the floor) but it ...
0
votes
1answer
54 views
How to make a sidescrolling effect in lwjgl
I use the following methods and the screen moves away from the player.
glTranslatef(h.x - width/2, h.y - hieght/2, 0);
if ((Keyboard.isKeyDown(Keyboard.KEY_D))) {
h.x += 10;
...
-1
votes
1answer
45 views
How to load resources in LWJGL [duplicate]
I've been searching for days. When I export and create my fat jar it loads and disappears. It can't find my images.
This is what it all looks like. I used something like this to load them:
File a;
...
0
votes
1answer
63 views
(LWJGL) Exporting Textures with JarSplice [duplicate]
I have another game that uses rectangles instead of textures and works just fine. when I run this I get this error:
Microsoft Windows [Version 6.1.7601]
Copyright (c) 2009 Microsoft Corporation. ...
0
votes
0answers
57 views
How to create a 2D overlay over a 3D game? (LWJGL/OpenGL) [duplicate]
GameDev!
I would like to create a 2D overlay over a 3D world, using LWJGL (Java version of OpenGL), to show information to the player, for example, a chat box, health bar, selected cannonball type, ...
1
vote
1answer
181 views
What alternatives are there for creating Keyboard/Mouse controls in LWJGL?
So I'm currently working my way through openGL tutorials, using LWJGL to do all my work in. However as I get to the part on how to access Keyboard and Mouse events in this library, I stumble across ...
0
votes
0answers
144 views
Adding 2d hud/gui to a 3d game engine which has no 2d features
I have been following the 3d game engine tutorial series made by theBennyBox for a few months now, and have finally decided to create a game with it. My problem is that it is a 3d only engine which ...
1
vote
0answers
54 views
Structure gameobjects and call events
I'm working on a 2D tile based game in which the player interacts with other game objects (chests, AI, Doors, Houses etc...). The entire map will be stored in a file which I can read. When loading the ...
0
votes
1answer
104 views
Why does my character move up forever when he jumps with this code?
I've been doing some stupid stuff in Slick2D+LWJGL and I've run into a problem.
I press the UP arrow and my character continues to go up until I let go :/
Here's the code:
if ...
0
votes
1answer
73 views
LWJGL Resize window and glTranslate breaking screen resolution
I'm trying to make a 2D Tile RPG game with LWJGL but I'm having a problem with the display resizing. I want the user to be able to re-size the window to whatever size they want just by expanding it ...
0
votes
1answer
76 views
LWJGL - Keyboard.next() not firing
I am trying to make a class which will handle all of my inputs, however Keyboard.next() isn't returning true. Here is my code.
while(Keyboard.next()) {
if(Keyboard.getEventKey() == ...
0
votes
2answers
63 views
Clamping large content to smaller area
I'm using OpenGL (with LWJGL) in Java, but the question is language independent.
I have some region (a rectangle for simplicity), and, let's say, a big tiled map which I want to show in this area. ...
0
votes
0answers
17 views
Slick util TiledMap stops all other drawing
Im trying to add tile maps to my game. Before I added the tile map, I had 3 quads being drawn for testing purposes, but after adding the tile map, the quads are no longer drawn.
private static void ...
0
votes
1answer
117 views
Getting the Ray position from View and Projection Matrix
I'm having some trouble calculating the direction and position of the ray from my matrices. I have tried some things such as:
private Vec3 getPick(Mat4 projection, Mat4 view) {
Mat4 ...
1
vote
1answer
101 views
How to use LWJGL Vertex Buffer Objects?
I have been learning how to make a game with LWJGL for a while now by following YouTube tutorials online but I've recently been having a problem understanding Vertex Buffer Objects. I've looked at ...
0
votes
0answers
40 views
Why isn't my texture changing after calling display list?
I can't bind another texture after calling glCallList. It does nothing. However if I change texture inside the list, it works.
5
votes
2answers
258 views
Are display lists faster than VBOs?
I'm making a voxel rendering engine. My "chunks" are 32 * 32 * 256 blocks and I can render a 16 * 16 square of them (which corresponds to Minecraft's maximal render distance). I'm using VBOs holding ...
0
votes
2answers
125 views
How do I merge quads to simplify a heightmap?
I'm trying to improve my frame rates.
My map has an area of 200 * 200 vertices, where each vertex has a height.
200 * 200 = 40000 vertices per frame.
I'd like to create a method to simplify the ...
0
votes
0answers
55 views
how to do picking in 2d lwjgl
I searched the whole internet, but I couldn't find something useful.
How to do picking (like ray picking) in lwjgl in orthographic mode (2d)?
I think this is less confusing than picking in 3d, but I ...
0
votes
2answers
102 views
Slick2D: constructor vs. init method
What is the difference between the constructor of a BasicGameState and the init method? It appears that they are both called at the same time when the BasicGameState is registered in StateBasedGame, ...
0
votes
0answers
73 views
LWJGL Rotating is moving
I am trying to rotate my QUAD even just a little bit.
I have read pages like http://www.java-gaming.org/topics/lwjgl-tutorial-series-moving-and-rotating-triangle/30679/view.html
In my render() ...
1
vote
1answer
60 views
Slick2D: Initializing graphics object before game loop
I'm using the Slick2D Java game library and I want to set the scale of the graphics object that gets passed to the render method in my game loop. I'd like to do this outside the render method, so ...
-1
votes
2answers
57 views
LWJGL Jumping Down [closed]
I'm currently building a little game using LWJGL, and I got a Game class which contains my game loop, instances etc... And a Player class which contains a constructor (for x and y coords), logic ...
0
votes
1answer
354 views
How do I move the camera in 2D LWJGL openGL?
I am making a top-down rpg game with the LWJGL but I can't figure out how to make the camera follow the player. I've tryed using GLU.gluLookAt() but it seems to be designed for 3D and when I try it ...
0
votes
0answers
72 views
Window resizing doesn't work correctly
im currently having issues on resizing my game.
It's a 2d Game and I want resizing to look a little(or exactly) like this:
Original size:
Smaller window size:
My resizing function currently ...
0
votes
1answer
57 views
How can I create a cross-fade between two quads?
I have two quads, and I would like to have each one of them on the screen for 5 seconds, then fade to the next one. How could this be done?
My code:
package net.makerimages.Unacrawl.stateSys;
...
0
votes
1answer
257 views
LWJGL Camera Rotation Issues
I am quite new to LWJGL and OpenGL and I am trying to create an FPS camera. I had no problem with 2D stuff, so I decided to step things up and try and make some things in 3D. I have this 3D camera ...
0
votes
1answer
180 views
2D Tiled Map - Small tiles or big tiles with pixel-precise movement
I am using Java - LWJGL - Slick2D . I have tried to do a proper collision detection with 32 x 32 tile size but failed three times. I just cant get it to work! I found a youtube video that was using ...
6
votes
3answers
2k views
How do I render a PNG with transparency in LibGDX?
I'm building a simple tic-tac-toe example with LibGDX. I have simple images: cross, circle and board, all pngs created with GIMP with a transparent background.
How can I render them as a Texture with ...
0
votes
0answers
39 views
Should tiles in a tile-based game draw themselves? [duplicate]
I'm a beginner in game programming, and I want to start with Java (in which I have a strong background I think) and LWJGL. I want to create tile-based games.
Let's say I have an object named Tile, ...
0
votes
2answers
157 views
How can I move a created Image in Slick2D?
I want a image to follow the mouse, and I use Image class of Slick 2D:
public void init(GameContainer gameContainer, StateBasedGame stateBasedGame) throws SlickException {
mouseImage = new ...
0
votes
1answer
199 views
Break a learning barrier with Java + LWJGL [closed]
I have been coding with Java and LWJGL for some time. I mainly use thebennybox's tutorials, but I can't always remember the 3D rendering. But even when I have a 3D rendering models, planes, cubes, ...
0
votes
1answer
156 views
LWJGL: Camera distance from image plane?
Let me paste some code before I ask the question...
public static void createWindow(int[] args) {
try {
Display.setFullscreen(false);
DisplayMode d[] = ...
0
votes
1answer
348 views
LWJGL font not rendering, even with depth test and texture_2D
I'm running into an odd little problem here. I'm attempting to render a basic console over my LWJGL-based application, which should be easy enough through a decorator pattern of renderers (as in, one ...
0
votes
1answer
83 views
Lwjgl or opengl double pixels
I'm working in java with LWJGL and trying to double all my pixels. I'm trying to draw in an area of 800x450 and then stretch all the frame image to the complete 1600x900 pixels without them getting ...
2
votes
1answer
433 views
RTS Voxel Engine using LWJGL - Textures glitching
I'm currently working on an RTS game engine using voxels.
I have implemented a basic chunk manager using an Octree of Octrees which contains my voxels (simple square blocks, as in Minecraft). I'm ...
1
vote
2answers
98 views
StringBuffer behavior in LWJGL
Okay, I've been programming in Java for about ten years, but am entirely new to LWJGL. I have a specific problem whilst attempting to create a text console. I have built a class meant to abstract ...
0
votes
1answer
296 views
LWJGL - Continuous key press event without delay
I am checking for key presses and then based on the keys pressed I am moving a square around the screen. I am setting booleans for the keys WASD. But , Whenever I try to keep the key down , it takes a ...
