All Questions
73 questions
0
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61
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Is using sprite sheets and drawing specific part the way to go?
I'm programming in Java.
I have more than 200 MB of images used in my games, something like 100000 40x40ish images. I initially wanted to load them all during app initialization but it took like 2 ...
- 113
0
votes
1
answer
356
views
Libgdx - Screen tearing (or artifacts) while in fullscreen
I have a problem with libgdx, fullscreen and what I believe is screen tearing or any other sort of artifact.
In windowed mode, everything works fine, but when i switch to fullscreen, moving sprites ...
0
votes
0
answers
398
views
LibGdx- Sprites moving alongside camera
I am trying to render some entities in random positions on the screen. The spawning positions are okay however when I move the player entity (which the camera is focused on) and pass the middle of the ...
- 1
2
votes
1
answer
1k
views
How do I detect a given sprite's bounds automatically using Java?
Background
I have the following png file that contains the player sprite.
As with any png file, the non-colored pixels are ...
- 123
1
vote
1
answer
1k
views
LWJGL—How to Animate and Render Characters Using a Sprite Sheet
I'm making an RPG similar to Super Nintendo RPGs in the early '90s. I'm handling movement much like Squaresoft's Final Fantasy IV.
Notice that the player never actually changes his x and y positions ...
- 1,022
3
votes
2
answers
148
views
Why is my Mario clone game sprite getting cut off when I try to change it?
In my Super Mario 3 clone, my sprite draws correctly upon instantiating the JFrame, but when I press one of the buttons I've set to jump, it gets partially cut off. Everything on the screen is a ...
- 131
0
votes
1
answer
277
views
Collision detection with isometric tiles stored in rectangular files
So I'm working with a player moving across a grid of isometric tiles. Each tile is stored in a .png file. I have a class that crops out BufferedImages from different sprite sheets and initializes them ...
0
votes
1
answer
89
views
How to make a tile that can be stretched out
I was playing angry birds and I saw that the elastic used to throw the birds is a texture that expands well when you push it with your finger.
How can textures like this be made in java with libgdx? ...
- 157
0
votes
1
answer
331
views
How to get the attack animation cycle all the way through after one KeyEvent without twitching? (Java awt)
So I figured by myself (supposedly) how to make the attack animation cycle all the way through after pressing a key without needing to keep it pressed. But now it doesn't always start at the same ...
- 3
0
votes
1
answer
519
views
Performance optimization when changing Textures LibGDX
In the main Screen class of my game there is a ListArray<Card> which makes up the deck ...
- 25
1
vote
4
answers
4k
views
What's a proper way to change colors of a sprite on the fly in libGDX?
I have found a great tutorial series on creating a simple 2D side scroller, Super Mario Brothers, in this case, and I believe I can adapt it fairly well to create a Megaman clone(something I am quite ...
- 63
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votes
1
answer
298
views
In Libgdx sprite displaced from their bodies position just after colliding with another body
In my game i have a ball falling from above and a rectangle below. when my rectangle collide with ball,sprite position displaced from body automatically,i could not understand this. and i also tried ...
- 26
1
vote
2
answers
1k
views
How do I use Sprite in libgdx ashley ecs framework?
In the libgdx ashley wiki there's an example of Position and Velocity components, which is pretty easy to understand. My problem ...
- 501
1
vote
1
answer
100
views
Which is the most efficient way to make the screen follow a sprite?
This is my first non-board game and I'm trying to learn a bit about 2D graphics in Java.
But I don't know, how should I efficiently implement a camera to make the screen follow the main character.
I ...
- 13
1
vote
1
answer
257
views
Black lines on sprites
I am having the issue as seen below while using a textureAtlas with libgdx. I haven't found anyone else with the issue so I decided to ask here.
Here is an image of the textures in the game screen:
...
- 161
0
votes
1
answer
54
views
Sprite update issue
I'm currently implementing Box2D with LIBGdx and i'm having issue on update, as you can see on this video : https://www.youtube.com/watch?v=D3Nph6yftTQ whenever my player move or the camera move the ...
- 177
0
votes
1
answer
2k
views
How do I fix a delay between the first and second KeyEvent
I recently got really interested in making my own little game. As I have no real game development background I'm still figuring stuff out, but I encountered a little problem.
While working on the ...
- 1
1
vote
1
answer
3k
views
Libgdx Sprite rotation around specific point
I made complex dynamic body that rotates around other body that is static. It works perfectly, however I got messed up with sprite position on that body.
Here's what I have now
and here's what I need ...
- 340
3
votes
1
answer
6k
views
Java Libgdx Attaching Sprite to Box2D Body
So I am working on programming a java 2D platformer for fun on the side and I have a rendered TMX level and a box2d body (just a circle shape) that I am currently using as my player. All the controls ...
- 31
0
votes
1
answer
117
views
Libgdx + Box2d working with 2 cameras
Recently I have read that you can work with 2 cameras whenever you involve Box2d, which only works in meters.
In my Renderer class, I receive all the entities in the game and then draw them. I work ...
- 1
2
votes
1
answer
622
views
How could I implement destruction of bases in Space Invaders type game?
What approaches could you use to implement the the gradual destructions of bases/shields in a top down shooter type game similar to Space Invaders?
The simplest approach could be to use a series of ...
- 123
1
vote
1
answer
357
views
Why is the alpha value of a Sprite in LibGdx 0.99607843 and not 1?
I'm developing a game in LibGDX and one of my problems is related to the alpha value of a Sprite object.
If I create a new Sprite sprite object then ...
- 179
1
vote
1
answer
489
views
Positioning partials of character sprite animations
I'm not entirely sure how to best explain what I'm doing. Maybe I'm going about this completely the wrong way. If any of you find that that is in fact the case, I would appreciate it if you told me ...
- 11
2
votes
0
answers
210
views
Sprite animation in Android view
I'm looking for a way to have different sprite animations in individual Android views.
I try to use LibGDX and AndEngine but most I could find was how to get an Activity with the sprite animation.
...
- 141
1
vote
0
answers
90
views
How can I detect sprite collisions out of screen?
I am creating an Android game using andEngine library.
I have enemies coming from out of the screen into the screen. I already know how to detect collisions, but is there any method I can use to ...
- 123
1
vote
1
answer
872
views
LibGDX - Rotating sprites and still keep the positioning between them
I've been struggling with a problem regarding rotations and relative positions between sprites (in this case, the sprites are just lines) - a bit off-topic, but should i be using the ShapeRenderer ...
- 231
1
vote
1
answer
52
views
JAVA: Unformed Sprite When trying to Read SpriteSheet
So Im a beginner experimenting with ImageIO. Can someone tell me why im getting this pixelated-incomplete sprite?
Here's the code
...
- 13
0
votes
1
answer
5k
views
Java: Exported JAR file doesn't load images
I am using Netbeans to create my game. The images do seem to load when I run it in Netbeans. However, the built jar file only leaves me with a blank screen.
This is how I call the images in my game.
...
- 25
0
votes
2
answers
1k
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 ...
- 113
1
vote
4
answers
2k
views
What is the easiest way to make an object follow the edge of a sprite?
I have a rounded rectangle sprite and another sprite that's just a circle. I want the center of the circle to follow the edge of the rounded rectangle. Is there any easy way to accomplish this task? I'...
- 41
1
vote
1
answer
1k
views
Libgdx - Sprites disappearing [closed]
I'm facing a little problem and I have no idea to bypass it.
I've made a dungeon generator and I'm able to spawn randomly mobs, the problem is that when they are not moving the game is fine, but at ...
- 177
0
votes
2
answers
2k
views
Make objects slide across the screen in random positions
I want to make an object appear randomly at the right hand side of the screen and then slide across the screen and disapear at the left hand side. I am working with libgdx. I have this bit of code but ...
2
votes
1
answer
2k
views
libgdx get rotated sprite coords points
I would like to get the position of each edge of a sprite when he has been rotated.
I have no idea how to do it, I made a image to explain it.
I would like to get the X and Y position of each Red ...
- 278
2
votes
2
answers
2k
views
How can I create delays for sprite animations that work correctly when the application is killed and restored?
Please see my original question here:
Using System Time to compute delay times that correctly deal with app pauses?
In summary, I am attempting to to introduce a delay (say of 5 seconds or so) ...
- 1,927
2
votes
2
answers
404
views
Expandable 2d environment by spawning and controlling individual tiles
what is the best way to implement an environment that is "expandable" in every direction so that when the player moves in any direction a new row or column of tiles that can be manipulated ...
- 21
0
votes
2
answers
1k
views
AndEngine - Smooth scaling on a sprite
I'm trying to implement a pinch zoom on a sprite. I would like to get an effect like the SmoothCamera, but on a single sprite. I've managed to pinch zoom on the sprite by changing its scale, but the ...
- 103
0
votes
1
answer
229
views
Load all bitmaps at once or only when needed?
I am starting to get a pretty hefty amount of bitmaps in my 2d game for android. I load them all in 3 colors to save some memory but the thing is, I load all of them when "Start game" is pressed, even ...
- 1,913
0
votes
1
answer
619
views
How should I determine the bounding rectangles for frames within a sprite sheet? [closed]
I have a spritesheet for a character. The spritesheet has several rows, and each row represents an animation. The elements within a row might vary in width.
How can I load the different sections of ...
- 601
3
votes
4
answers
2k
views
How to set speed of circular motion
Edit 2 - clarification
Just to clarify, the issue I have at the moment is how I specify a time (in seconds) for a complete revolution to occur. My delta is fixed and is 1/ticks per second (1/60). ...
- 1,927
2
votes
1
answer
1k
views
Is it possible to achieve a smooth sprite animation with a fixed 60 FPS using Java 2D?
I've seen a lot of different game loops, and before implementing anything complicated I decided to start with a capped 60 FPS. My run method looks like this in my game thread:
...
user6214
2
votes
2
answers
2k
views
How to implement pathfinding in this situation
So I'm creating a game for android using the libgdx library. I render the map from a tmx file and in it all the water tiles have the property of blocked. My player(a sprite) moves to where I clicked/...
- 236
1
vote
2
answers
210
views
Twitchy sprite movement
I'm having an issue with sprite movement, and I'm not sure how to deal with it.
When I set a destination for my player sprite (by clicking the screen), it sets the player moving in that direction. ...
- 127
1
vote
2
answers
320
views
Handling creation of enemy sprites in a level
I am trying to build an RPG tile-map based game. Currently I am going to set enemy sprites that will be repeating their motion in fixed path. Suppose that I have a level map, which has got width 3 ...
- 191
1
vote
1
answer
3k
views
libgdx: how to manage entity classes [closed]
Good day sirs, I know this is a newbie question but I really need to ask it. I've been reading a lot of sample codes on libgdx, and I have seen entities(player, enemy, boss,etc.).
my question is what ...
- 31
1
vote
1
answer
2k
views
Dealing with "jumping" sprites: badly centered?
Thing is, I've used darkFunction Editor as a way to get all the spriteCoordinates off a spriteSheet for each individual sprite, and parse the .xml it generates inside my game.
It all works fine, ...
- 245
0
votes
1
answer
538
views
sprite array problem with initialization
I have a problem with my Sprites. I'm trying to create a lot of Sprites. However, I got a problem in that I have several grass tiles and I don't want to do this
grass1 = new Sprite...;
grass2 = new ...
- 215
-1
votes
1
answer
276
views
How would you program sprite movement in a 2-D ariel view rpg game? [duplicate]
I'm relatively new to programming and I have recently programmed an RPG game in java.
Any tips on character movement with animations? I would like it to be similar to those of other rpg games such as ...
- 1
-3
votes
1
answer
302
views
java app goes too slow in android os [closed]
The problem is that my java app contains too many animated sprites and it runs very slowly on android system.
Does the usage of .gif animation instead of sprite animation will improve the speed?
I ...
- 149
5
votes
1
answer
2k
views
libGDX using Stage and Actor produces different camera angles on desktop and Android Phone
libGDX using Stage and Actor produces different camera angles on desktop and Android Phone.
Here are pictures demonstrating the problem: http://brandonyuh.minus.com/mFpdTSgN17VUq
On the desktop ...
- 51
2
votes
1
answer
2k
views
setPosition of Sprite onUpdate in AndEngine
I am trying to get a "highlighter" circle to follow around a sprite, but I am having trouble, I thought I could use the onUpdate method that's available to me in SequenceEntityModifier but it's not ...
- 157