Operating system for mobile devices. For non-developer questions, see http://android.stackexchange.com

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votes
1answer
17 views

Java Buffers and OpenGL ES 2.0 (Android)

I've been trying to come up with a good solution for preloading textures asynchronously, but in Android with OpenGL ES you cannot create a texture out of context. Would the proper solution be to load ...
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votes
0answers
25 views

Is there any advantage in using sprite sheets in Cocos2d-X menus?

I am developing a game using Cocos2d-X 2.3 and Marmalade SDK 7.3.1 and I was wondering if there is difference between loading the icon images that will be used in my menu buttons from a sprite sheet ...
-1
votes
0answers
24 views

Looking for Open Source engine for building Real Time Multi-player Quiz games like Quizup,Quizlet [on hold]

Any recommendations for Open Source engine for Real Time Multiplayer Quiz game like Quizup,Quizlet. Intended Platforms - Web,Android,IOS Game engine should have below features (may be some more): ...
0
votes
0answers
49 views

Perfect game loop [on hold]

I've been working on development for an android game, and this is the game loop I have so far: @Override public void onDrawFrame(GL10 unused) { // Use this structure to set constant dt on a ...
0
votes
0answers
19 views

Good books on Android OpenGL game development [on hold]

I don't know if opinion based questions will get down voted here. But anyways , I wanted to know some good books on Android game development with OpenGL. I have some intermediate knowledge on Java ...
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0answers
22 views

Puzzle Game on Android using canvas with matrix

I'm making a slide puzzle game on android. I have handled the gestures and tranaslate the matrix that holds the pieces succesfullly, and I have made the logic when the pieces get on the border of the ...
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votes
0answers
19 views

Multiple time initialize same texture

I am newbie to libgdx gaming, i have a problem to initialize the multiple images having same texture;try to do using array and i could not do,as i am very new so can help me sort out. private Image ...
0
votes
1answer
46 views

Is it possible to a create an Android game that uses the built in keyboard?

I know the keyboard is probably built into the Android OS and I have a simple game idea, sort of like a word game, but is it possible to create a game that uses this in the game itself?
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votes
1answer
37 views

The sprite will not move in libGDX

When I ran the android application, The sprite image will not move when I press the input keys. I followed a tutorial based on input keys and wish to know what's wrong. Can anyone see what's wrong? ...
-1
votes
0answers
16 views

How to use bitmaps as items on ListPreference? [closed]

I want to have a setting that the player can choose their desired character. How can I use my imported images as the items on my List Preference view? This is the screenshot of XML: ...
0
votes
0answers
50 views

Rotate object with accelerometer?

I'm making a game where you control a platform with balls falling ontop of it, and you have to balance the balls and prevent them from falling off. I'm currently using a mouse to control it with this ...
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0answers
25 views

Unity Android Unable to convert classes into dex format AdMob

I'm a beginner Unity programmer (school-age), so I don't know that much about the system. On its own my app compiles fine, but when I implement the AdMob SDK (Google) 2.1, I have the following error ...
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0answers
43 views

want to make android game [closed]

I want to make a game but I don't have any drawing skills so any way to get charters and background for my game or any software which help me to create charters as I want easily
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votes
0answers
29 views

Create Server for Online Chat in Unity2D? [closed]

Im trying to make a simple online chat for Mobile Devices in Unity2D where users will join to these chat rooms and start the chat. I already made the chat and now I need to make my server. Any hit to ...
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votes
0answers
24 views

Android - OpenGL ES 2 - Cube with different texture in each side

I need to create a 3d cube, with a different texture on each side. Here is my cube class, which my other classes extend: import java.nio.ByteBuffer; import java.nio.ByteOrder; import ...
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votes
1answer
31 views

Android - 3d view with object picking, dynamid textures and camera changing [on hold]

I need in an application to add a 3D viewport inside an activity, together with some other buttons. I need the viewport to allow object picking, so user can click on objects, dynamically changing ...
0
votes
1answer
41 views

How to change the Android NDK jni calls dynamically?

Some people are using NativeActivity for working with Android projects exclusively in C++, but this also carries some disadvantages, so I, like many others, decided that I'd use instead a Java glue ...
3
votes
2answers
95 views

Why are my Box2D wheels slipping on ground?

I have a car, set up in Box2D as a rectangle connected with two wheels using WheelJoints: The wheels are defined as follows: FixtureDef wheelFixtureDef = new FixtureDef(); ...
0
votes
1answer
51 views

If filled polygon cannot be drawn via libgdx ShapeRenderer , then what is the work around?

I know most of you would suggest me to draw a filled polygon by using combination of triangles and rectangles , but that is not possible for complex shapes . I want to basically draw a generic shape ...
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0answers
25 views

Cocos2d-x: Some CCSprites become invisible when adding child at runtime

I'm a newbie to Cocos2d-x v3.0, and recently I got this problem when I deployed my app in Android devices. First, my app ran well on window, then as I mentioned in the title, the problems happened ...
0
votes
1answer
62 views

What's the best way to save scores per level in android?

I'm in the middle of programming a tile based puzzle game, then i realized i don't have any good ways to save data. For the moment i'm using these long combined strings for sharedpreferences and i'm ...
1
vote
2answers
183 views

Efficiently detecting objects inside multiple radius

I would like to create a game for mobile that require to calculate multiple time by seconds which moving objects are in the radius of moving points. The game is highly inspired from Gratuitous Space ...
0
votes
1answer
66 views

Tilemaps and colour overlays

I am currently developing an isometric tile game for android. I am currently working on how I to handle rendering the tiles in an efficient way. So I was wondering about the possibility of using a ...
0
votes
2answers
90 views

Currently developing a game with Android SDK, should I switch to a game engine in future projects? [closed]

I am an android developer, and I've made several apps on the Google Play Store. I'm currently working on my first game, which is just a simple RPG for android, that I'm coding in java with the android ...
2
votes
1answer
64 views

How can I use imprecise accelerometer data for controls?

I want to rotate an object with respect to the phone's position. I use the accelerometer output to detect orientation: float roll = Gdx.input.getRoll(); float pitch = Gdx.input.getPitch(); float ...
0
votes
0answers
45 views

Chroma Keying Shader

I want to apply chroma keying shader for my application. For this I used GPUImage plugin. In that I found GPUImageChromaKeyingBlendFilter class to satisfy my needs. In plugin, ...
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votes
2answers
184 views

How to change from 60FPS to 30FPS while keeping things smooth?

Here is my current game loop: final int ticksPerSecond = 60; final int skipTicks = (1000 / ticksPerSecond); float dt = 1f/ticksPerSecond; while(System.currentTimeMillis() > nextGameTick ...
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0answers
53 views

Vsync and Gameloops

I was about to publish my app but I tested it on a cheap Android tablet. It's anew tablet, but a cheap / low spec one. The game runs, but is pretty choppy. I'm made a discovery that quite surprised ...
0
votes
1answer
45 views

Does LibGDX abstract OpenGL ES away or can I still use my OpenGL ES knowledge?

I've been learning OpenGL ES, and am now turning my attention to using LibGDX. My main concern with LibGDX is, if needed, will I be able to apply my OpenGL ES knowledge to something if needed and ...
0
votes
1answer
51 views

How do I correctly destroy a MobFox ad?

Is anyone here using MobFox to display their Android app's ads? I was previously using the AdMob SDK but recently switched to MobFox and while it only took a short time to integrate it, there are a ...
1
vote
1answer
48 views

Touchable Hud with Actors in Libgdx

I am writing a Tower Defense for Android. Right now my LevelScreen contains a Background-Actor which is pan-able and some zones to buy Towers - after buying them you can upgrade them further. When you ...
1
vote
3answers
163 views

Reducing APK File Size by using JPG instead of PNG for game background images

I've just finished my (openGL ES 2.0 Android) game and it's almost ready for Alpha-testing. When I export the application to an APK File, the file is taking up 16MB and I would like to reduce this as ...
1
vote
1answer
74 views

Tiles touching all of same color check

I'm currently having a problem that has stopped my productivity for quite a while. I need to check if all tiles of a color is touching each other for each color like this: I have all my code for ...
1
vote
1answer
86 views

Problem to match font size to the screen resolution in libgdx

I'm having problems to show text on my game at same size on different screens, and I did a simple test. This test consists to show a text fitting at the screen, I want the text has the same size ...
0
votes
2answers
151 views

Android: How to create fluent animations by using bitmaps and ObjectAnimator?

I want a resized bitmap item to move over the screen into a house. This basically works, but the movement is not fluent and is stuttering. Since I always have to draw both the resized background and ...
0
votes
0answers
45 views

How to open another class by clicking on a button on libgdx?

I have a question about libGdx. I am making my own game, I have already made a splash screen and a main menu. I have made a button "Play" in my menu but I can't link it to my main game. however, I can ...
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0answers
68 views

Android OpenGL ES 1.0 - Glow/Bloom effect

I'm currently building an Android space fighter game which uses OpenGL ES 1.0. For several technical reasons, I cannot at this point upgrade to 2.0. I really want to add a "glow" effect to glowing ...
1
vote
1answer
29 views

XY Location scaling with varying density screens

I have a phone with resolution H=1280,W=720,Density=2 I have a tablet with resolution H=1216,W=800,Density=1.331 I drew a rectangle on my phone with corners Left,Top (-1.6,1.55), Right,Bottom ...
0
votes
1answer
49 views

facebook like for unity android

Is there a way to add a like button which links to my page for my android game which I made in unity. Any help would be appreciated.
0
votes
1answer
59 views

background move to the right

I'm developing an android app and want to make move the background to the right. The problem that I have is if it moves it does not repeat the background. I appreciate every suggestion. Thanks. The ...
0
votes
1answer
41 views

Nullpointerexception when loading resources in openGL ES 2.0 Android project

Overview My splash screen starts by display a 'loading' dialogue and then kicks off an asyncTask (The loading dialogue is derived from the standard Android View class) Within the doInBackground ...
0
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0answers
27 views

Unity - Android touch Problem

I've build my game for various platforms using Unity3d 4.3.3. I've tested it on windows, Mac, iOS and android as well. It works perfectly in all the devices except few high and android devices like ...
1
vote
1answer
92 views

How to make an Actor follow my finger

I'm back with another question that may be really simple. I've a texture drawn on my spritebatch and I'm making it move up or down (y-axis only) with Libgdx's Input Handler: touchDown and touchUp. ...
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votes
2answers
36 views

How to obtain the currently bound texture ID in an openGL ES 2.0 project

In my game, I have: GLES20.glBindTexture(GLES20.GL_TEXTURE_2D, texID); Where texID is an integer returned by my setTexture() method. Let's say, in this instance it's 1. When I bind my textures ...
0
votes
0answers
28 views

How to move the background vertically downward in android?

Try this code: private Bitmap mBackgroundImageFar; //my image private int mBGFarMoveY = 0; mBGFarMoveY = mBGFarMoveY + 2; int newFarY = mBackgroundImageFar.Height - (- mBGFarMoveY); ...
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0answers
29 views

Export Blender 3D animation to be played by Android OpenGLES

Below code snippet shows the way to export coordinate of bones: def export_bone_matrix(armature, bone, label, file_handler): SystemMatrix = Matrix.Scale(-1, 4, Vector((0, 0, 1))) * ...
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vote
2answers
104 views

How to render rounded shape perfectly?

I'm having issues rendering rounded shape figures. I have a Texture with different images in it and I get this whale figure from it with TextureRegion but the stroke of it looks pixelated. The ...
0
votes
1answer
53 views

AndEngine - Performance problems with many entities

I'm developing a rolling scene based game I'm loading all the entities from a XML file and create them in the Loading Scene recently I increase the game width , and by doing so , in the whole level I ...
0
votes
0answers
18 views

AndEngine: image partially disappear on finger move

I am new to andengine and I want to create an app like that: I have 2 images one on other now what I want is if I move my finger on upper image It should partially disappear only from the position ...
0
votes
1answer
31 views

Generating multiple instances of one opengl object with random coordinates

Sorry if the question is dumb but my brain just cannot solve it for some reason.. So I've made one opengl object public static Square ball = new Square(75,75); And I am trying to make it so that ...