LibGDX is a cross-platform Java game development framework based on OpenGL (ES) that works on Windows, Linux, Mac OS X, Android, iOS and your WebGL enabled browser.

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Draw image layer in tmx map - libgdx

I created a map only with an image layer in tiled map editor. When I want to load the map the layer isn't shown. Only the background color. Followed the tutorial from ...
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900 views

LibGDX , Scale button with animation when it is pressed

I am developing game using LibGDX . I want to create beautiful menu and to scale buttons when they are pressed but not in this way , when it is pressed scale it 1.5f , I want to scale it with ...
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625 views

Typing text animation (dialogue) libGDX or in general

Can anyone think of an efficient way to animate the typing dialogue text as found in pokemon? I have a vague idea of using string.length, and having a new letter drawn every .2 seconds or so, but ...
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391 views

LibGDX Touch Delay

So I'm trying to make a game in which you have to tap things fast, but the thing is - after you touch something (the area I chose), it takes like 2 more seconds to register another touch. Now, I think ...
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Creating a glitch effect similar to Watch Dogs

I'm currently working on a LibGDX game. When a user does something wrong, I would like all the graphics on the screen to jitter very similar to the glitch/distort effect seen in the game Watch Dogs ...
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(LibGdx) Get mouse position in ENTIRE game [closed]

I'm trying to get the mouse position IN GAME. By that I mean not the position on the screen, but inside the window. I've been using Gdx.input.getX(), but that's not INGAME. How do I do this?
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450 views

Is it possible to create sqlite database only for android in LIBGDX game? [closed]

I want to know if I can just implement sqlite database for android in libgdx game? Also if this is not possible then may I know the simple way to integrate libgdx game to just store scores in sqlite ...
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120 views

Making dialog “clips” in libGDX or in general?

I'm new to libGDX (I just released my first game), and I've started thinking about things I'd like to do next time. One thing I really want to do is, have those story type movies, where you tap the ...
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165 views

Event handling for Pressing only 4 keys on desktop

I want to poll only 4 keys i.e. Keys.LEFT, Keys.RIGHT, Keys.Up and Keys.Down in libGDX strictly. That means, I want to call render method, only when above 4 keys are pressed. I followed below link ...
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726 views

how to remove game objects after on overlap in LIBGDX game

I have gold stars in my game that give score to game hero if the hero overlap with the star. What I want is to remove star once it overlap with hero object. I give score by checking overlap with this ...
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1answer
333 views

Drawing shapes and images in libgdx dialog

I am currently working on a dialog window for my android game using libgdx. This dialog window contains a collection of labels and buttons, but should also contain an image. The image represents the ...
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3answers
351 views

Using Delta for a stopwatch, delta too fast than real time seconds

I search for methods to create a stopwatch on libgdx and came across with this: public void trigger(float delta){ playTime += delta; playTimeRounded = ((double)Math.round(playTime * 100) / ...
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1answer
89 views

Libgdx--how to store every single point drawn using touchdragged?

Basically i am trying to detect line collision. The problem is when intersection occurs quickly(touch dragged is done quickly like fling), the collision is not detected. It seems as if 'touch dragged' ...
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2answers
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Why does adding LIBGDX “fadeIn” action to a table in a group make the whole stage fade in?

I'm trying to "fadeIn" a store "screen" which is really just an invisible group. I set the group to visible=true, set the alpha to 0 and then do a "fadeIn" on the group. The problem is that the whole ...
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1answer
271 views

How do I detect a line collison in LIBGDX?

I am drawing a continuous line using Pixmap. I want to check for a collision / intersection of my line with the already drawn line.
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rotate to movement direction [duplicate]

If I have a player character that can move 8-directionally, I can set the rotation of the player to face the direction of movement. But if I want to smoothly rotate to a direction, sometimes the ...
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1answer
446 views

Why do my Box2D collisions fail when I have multiple fixtures on one body?

I'm creating my first libgdx / Box2D game where a player moves around using a mouseJoint. My player has two fixtures, "main" and "question". For some reason when I have these two fixtures, my player ...
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1answer
130 views

Texture Packer - Any way to make it combine intelligently

I am making a Pokemon Clone, using libgdx. I have the different types of sprites: e.g. Back, front, back shiny, and front shiny. The current way the Texture Packer combines the textures seems to be ...
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1answer
152 views

How can my entities avoid walking on certain tiles?

In my tile map, created with 'Tiled', I placed some tiles that need to be avoided by my mobiles. Tiles like water or obstacles. The entities "wander" in the map, choosing random directions, and their ...
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2answers
729 views

box2d rendering performance degrading extremely even with sleeping bodies?

I'm working on my first smartphone game, a simple 2D platformer built with libgdx. Game maps use the Tiled level format, so a map is just a bunch of blocks. I recently started using box2d to implement ...
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0answers
638 views

Libgdx implement 2d drop shadow for transparent sprites

I am a libgdx learner. For an learning application that I am developing using libgdx on android, I need to show drop shadow or glow effect when a sprite is touched. The sprites are created from a ...
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64 views

How to eliminate the outline in libgdx?

I'm recently started working on a game in libgdx, and I've run into the problem that my sprites tend to get a thin, whitish outline around them. This is especially a problem for me since I'm working ...
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2answers
279 views

Optimizing Collision Detection in a 2D Game

I am optimizing my "little" Java (LibGDX) shooter game, and perhaps unsurprisingly, collision detection is a "bottleneck"; I've kind of reached my performance goals already, but I want to tweak the ...
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1answer
258 views

Dealing with multiple 2d sprite animations for the same object

I am using libGDX for a 2d game. Some of my in-game objects have animations, for example a soldier in top-down view that has a walking animation. That is working fine. Now, while walking, this ...
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192 views

Lag when drawing single Texture multiple times in libGDX [closed]

I am building a game where you are basically drawing little dots on the screen with the help of the accelerometer. I am using a single instance of an Actor where I store the coordinates that needs to ...
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386 views

Make camera move constantly upwards in box2d world

Im using libGdx to develop a 2d game, which has the following: The world moves in an upward direction by having a camera follow the player's y position. The user only controls player's x movement, ...
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350 views

How to draw multiple large background images using libgdx?

I have developed a basic lunar lander-style game using Slick2D and dyn4j and am now redeveloping it using libgx for various reasons. I am having problems drawing the background (i.e. everything, but ...
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1answer
142 views

Why isn't my aspect ratio calculation working on Android platforms?

I have this method: public final float aspectRatioHeight(float originalW, float originalH) { float newHeight = (originalH / originalW) * (Gdx.graphics.getWidth()-20); return newHeight; } To ...
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2answers
499 views

Entity/Component System - Unique Behaviour

So, I decided to see what the Entity/Component system of game development was all about. I really liked it. So, I decided to implement my current game with it. My problem: Unique Behaviour with the ...
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2answers
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How can I attach a libGDX actor to a box2D body?

I'm creating game like hill climb racing. I created my car with the help of shapes and joints but I don't know how to attach graphics to it. I used actors and sprites before for the sake of learning, ...
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1answer
264 views

Seeking Advice: Collision with JBox2d for Top-Down or Isometric Maps

I Hope I can make this as clear as possible! Currently working on an action RPG game, very early stages, more just the basic ideas down and written in. So i'll start on with my setup: Using Java ...
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124 views

Libgdx screen keeping text on screen from main Game class

In my libGDX app I have some text running on the main Game class, and when I switch to a different screen the text is still there? Can anyone explain this please. Also in my main class it is changing ...
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450 views

LibGDX change screen after 2 seconds

Ive tried using a timer in the render method but that just crashes my game, so how do I change screens after a certain amount of time after rendering.
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Sprite rotation LibGDX

I'am using the current mouse position to aim the player sprite, but I am not getting the best results. I want my sprite to have the direction pointed wherever my cursor is in the screen. Here's my ...
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1answer
148 views

How do I split a button graphic into a 9 patch?

I understand what a nine patch is but I don't understand how to create one with code. I've made an image with a 1-pixel black border, but how do I turn that into a nine patch? How do I make a nine ...
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1answer
37 views

Game info file? LibGDX android

In my app I need a file that I can keep settings like: TutorialSkip: True or AppDev: False and other info. How can I make this file and prevent users editing it? This has to work in the Core folder ...
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563 views

Help Understanding libgdx create animations example game

I am trying to understand the example game, cuboc. GitHub is https://github.com/libgdx/libgdx-demo-cuboc. I have generated my texture atlas but I do not understand the code that uses this texture ...
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3answers
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LibGDX: Making an object move correctly based on real time

Below is an image of my gameworld. As we can see, the player starts at position 0. each cell represents 1 game world unit. My goal is to get the player to move 1 unit (the red cell) in 1 second in ...
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218 views

Vertical Text - Bitmap Font Libgdx

How can I achieve this kind of rotation or vertical text using Bitmap Font? I already used Matrix but didn't get the result same as above.
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180 views

Placeing stones/tiles on a board game

I am a beginner at libGdx. I am building a board game (the Fanorama game). I would like to use a pic as the board and place the pieces on the board on top of the board sprite. Is there a nice way to ...
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Profiling my LibGDX game [closed]

hello programming friends, I have finished an Alpha version of my LibGDX game but it runs a bit choppy so it's time for me to start getting "analytical" and figure out exactly what's going on behind ...
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275 views

libgdx texture edge blending problem

I have two completely white bitmaps here: They're there, trust me. When I put one on top of the other and scale them down with TextureFilter.Linear I get this: How do I get rid of the dark ...
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1answer
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LibGdx Input data in a textfield

I have a textfield using scene2d but don't know how to save user input. this is what i have and it just draws the textfield. txtUsername = new TextField("", mSkin); ...
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1answer
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Box2D meters and pixels

I am confused about pixels and meters in Box2D. I know that Box2D work only in mters so I need SCALING FACTOR. How big I need it? For example I want that from my mouse coordinates position X and Y for ...
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1answer
65 views

Removing inline declarations makes code work. Why?

This does not work: camera = new OrthographicCamera(100, 100 * (Gdx.graphics.getHeight() /Gdx.graphics.getWidth())); This does: float w = Gdx.graphics.getWidth(); float h = ...
2
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1answer
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libgdx, how to check collision of randomly generated actors?

I have two groups of randomly generated actors, one is bullets second is enemies. And as of now I have no idea how to check collision of randomly genrated actors and remove the overlaped actors. I'm ...
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How do I fill a shape with a texture in Libgdx?

I am making a 2D racing game. I want to fill the area of the ground object with a texture. I have the shapes of the ground (a Box2D shape). If I make images of the ground with textures, it uses a lot ...
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2answers
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Since Table.drawDebug is deprecated in libGDX, what should I use instead?

I am following the "Learning LibGDX Game Development" book to make a simple game. I am in the menu creation section where we create a stage and render it with debug borders. The book says to use ...
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1answer
167 views

Collision detection Libgdx

I'm trying to implement Collision detection using Rectangles for my game but can't seem to get it to work. Bullets are updated when pressing space every frame so they move across the screen. ...
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1answer
240 views

Box2D pixel to meter conversion

I have a game that was written in pixels and now I want to change it to meters like(box2D do). How I need to do that. I have wached a lot of tutorials and all they have some SCALING FACTOR but when I ...