Tagged Questions
0
votes
0answers
14 views
Accessing variables from non-neighbouring classes specifically in game development (Android)
I've read a few questions on this subject but my question relates specifically to game development (and even more specifically, use of these methods within a game-loop).
I have the following classes ...
-1
votes
0answers
20 views
Skins for libGDX user interface [closed]
I am making a user interface in libGDX using the scene2d.ui portion of the library. To make a button, however, I need to have a skin. I was wondering if there is some sample premade skins available by ...
-1
votes
0answers
67 views
Should I use Java, HTML5, or Unity 3D for my Game? [closed]
I am developing a game and I would like the game to be available on the iPad, Android Tablets, Mac, and Windows. I've already began developing the game in Java, which will ensure support for the ...
-2
votes
0answers
58 views
andengine Tower Defence game - Enemy<-Weapon interaction [migrated]
What is the most correct from the performance point of view - algorithm of interaction between Enemy and Weapon(bullet maybe more correct here) ?
Should every sprite every single bullet check for ...
-2
votes
0answers
72 views
Game development update for newbie [closed]
I know many topics been here before but i think mine will be the most updated question. I want to start on game development, my target platform is android. I have experienced in web desktop and ...
1
vote
0answers
73 views
How to implement a multi-platform Java 2D game engine's graphics?
I'm not sure whether this question should be posted here. I'm trying to make a basic generic game engine in Java. Here's what I have so far.
public abstract class Device {
public abstract void ...
7
votes
1answer
245 views
When and why is a Pool class needed to hold objects?
I've been studying opengl es and an example I saw was using a "Pool" class to keep track of touch and keyboard events.
Could someone please explain how and why a pool class is needed. From what I was ...
1
vote
1answer
143 views
How do I make a scrolling background a la “Temple Run”?
I am looking to create a scrolling background much like "Temple Run" so that it may appear as though you are running down a hallway. Would someone please be able to point me in the right direction?
I ...
0
votes
1answer
96 views
Get back or delete an existing OpenGL object, then change it and draw at new. How?
With OpenGL i'm drawing for example a circle.
Can i take this drawn circle back out of the window and change something and then draw it back on the window?
Or can i /have to delete it and then draw ...
2
votes
0answers
123 views
How to make the background of an OpenGL object transparent?
It sounds so simple but i didn't get it to work.
The Background of my FrameLayout where i add the GLSurfaceView in is colored blue but there is only black.
So here is my method to initiate the ...
1
vote
1answer
73 views
Can't call method out of a timer. Why? [closed]
I have another problem i can't solve by myselve.
My situation:
I have four FrameLayouts in LinearLayouts.
I color them, set Layout hight and width at wrap content and just change the minwidth to ...
0
votes
1answer
67 views
Cost of changing scene in andengine
I'm working on a simple 2d puzzle with small textures (in count and quantity).
Now after I finished the game logic I'm considering tow options to switch between levels:
Remove all objects manually ...
0
votes
2answers
79 views
Android bitmap placing
I've recently added an explosion in my game, for when enemies get killed, and it works fine and all, but the explosion wont "spawn" on the enemies x and y.
The problem is that I'm not drawing the ...
7
votes
2answers
309 views
What's the best way to draw lots of trees
I'm writing an app which renders a random island planted with trees. The trees are currently two quads, criss-crossed and drawn with textures. I plan to have more complex meshes that form different ...
-6
votes
2answers
144 views
Moving a sprite diagonal?
I wonder how I should increase and decrease the value of xPos and yPos to be able to move a sprite object diagonal and in different angles?
canvas.drawBitmap(image, xPos - (image.getWidth() / 2), ...
0
votes
1answer
83 views
Android activities, when to use them?
I'm getting back into programming my game and I can see that I've used activities for so many things. I only have one with a custom-view (my actual game), the others are activities with XML-views, ...
2
votes
2answers
268 views
Detecting collision between ball (circle) and brick(rectangle)?
Ok so this is for a small uni project. My lecturer provided me with a framework for a simple brickbreaker game. I am currently trying to overcome to problem of detecting a collision between the two ...
-4
votes
1answer
56 views
Words matching system [closed]
There is a game called 94seconds and i'm interested in how they made words matching. I've decompiled apk and saw mongoDB and BSON classes and apparently they are used to store dictionaries for ...
0
votes
1answer
117 views
Is there a way to make a game using lwjgl work on android?
I'm working on a platformer and I'd like to make an android version. Do I need to rewrite everything for android, or can I use something to make the lwjgl code work with android?
0
votes
1answer
340 views
How to implement bullet physics in libgdx
I am new at game development want to know that how can I implement bullet physics in libgdx. I searched lot of things on Internet but nothing found worthy.
2
votes
3answers
299 views
What are the benefits of using a 2D game engine on Android?
I have thought about just coding a 2D game on Android using just pure Java and the Android SDK, no engines like libdgx, cocoa-2dx attached. I don't know if I really need to use a game engine or not. ...
-3
votes
1answer
141 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 ...
2
votes
1answer
168 views
Android Virtual Pet Gameloop
Hello I'm looking for a bit of advice in which way is the best to proceed creating my applications 'gameloop' - It doesn't want to be a game loop in the truest sense since I'm not really rendering any ...
1
vote
1answer
450 views
When to use ShapeRenderer & SpriteBatch in libGdx?
As a beginner(in GdxLib+Android), i found that for rendering particular screen, we can render that using both ways then when to use specific ones?
&
What is the best option for Updating the ...
11
votes
8answers
853 views
Converting a 2D curve into points for data storage
I’ve created an algorithm which converts any curve i.e. path into minimum number of points so that I can save it into a file or database.
The method is simple: it moves three points in equal steps ...
0
votes
2answers
313 views
adventure game architecture
I would like to make an adventure type game functioning similarly to machinarium or broken sword. The only way I can think of doing this is to draw an image as a background on a canvas and use some ...
8
votes
2answers
281 views
How well do functional languages perform on Android?
This is a special case of this question that I feel is particularly pertinent.
I'm working on a game for Android, and I'm planning on using Scala with libgdx. I'm planning on making a performant ...
0
votes
6answers
466 views
Can I develop a game on PC in Java and move it to Android?
I have fairly good experience with Java, but new to Android development. I would like to develop a 2D game which would have animations and online play.
Can I initially develop this game on my pc ...
0
votes
0answers
237 views
3d game Android development libraries? [closed]
Are there any good solutions such as libraries and add on's for developing a 3D Android game in Java, neither of these are designed with 3D Gaming in mind obviously.
2
votes
2answers
294 views
How do I get the touch event on a body in Box2d(Java)
I have various bodies rotated at some angle with the help of Box2d in libGDX. What I want is to destroy the body when I click on it, but the problem is that I am not able to get the area definition of ...
0
votes
0answers
77 views
How to monitor the object position while it moves from one place to another?
In my game two objects rotate in opposite directions and at one particular
place, the two objects meet. In that place I want to track the x and y degrees.
If this is possible please share your ideas.
...
15
votes
2answers
738 views
Graphics not being displayed on OUYA
I hope its not too early to be asking OUYA dev questions, but I just got my dev kit and I want to get my game running ASAP! I am using LibGDX as my framework for my game and launching the Android ...
1
vote
1answer
110 views
Keeping Track of Position OpenGL
I have a sphere in my 3D world located at the origin. I have models orbiting it and I need to keep track of each models' position (x, y, x coordinates) as well as update their bounding boxes for ...
2
votes
1answer
140 views
Is this an appropriate use of abstraction in my game engine?
I have been stuck in the design phase on my new game for a few weeks now because I keep finding new parts of the game engine that I could make more modular and neat. I did, however, run into a ...
0
votes
0answers
51 views
What could cause dispersed triangles instead of integral model?
So the thing is, I get dispersed triangles instead of model that I'm loading, in this case it's just a cube. It seems as those triangles have no points that connect them. Is there anyone who had this ...
1
vote
2answers
244 views
Quaternion Camera
Can someone help me figure out how to use a Quaternion with the PerspectiveCamera in libGDX or in general? I am trying to rotate my camera around a sphere that is being drawn at (0,0,0). I am not sure ...
0
votes
0answers
263 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 ...
1
vote
1answer
151 views
Using Quaternion in libGDX
Can someone give me an explanation about how to use the Quaternion class in libGDX to move my camera around a sphere or just set it up, manipulate it, and apply it general? I am trying to acheive ...
1
vote
1answer
421 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 ...
2
votes
2answers
440 views
Move Camera Freely Around Object While Looking at It
I've got a 3D model loaded (a planet) and I have a camera that I want to allow the user to move freely around it. I have no problem getting the camera to orbit the planet around either the x or y ...
1
vote
1answer
210 views
GestureListener's fling method doesn't get called
I'm using SimpleGestureDetector from the libgdx-users Wiki as my InputProcessor. I set it in the created() method:
Gdx.input.setInputProcess(new SimpleDirectionGestureDetector(charController));
...
9
votes
2answers
690 views
Android real time multiplayer over LAN [closed]
I've developed several games for the android platform and now planning to create my first multiplayer game. What I have in mind is basically just a 2-player game witch you can play with 2 phones over ...
3
votes
2answers
296 views
Is it possible to compile an android game for pc desktop?
If I have an android game based on java native libraries. Is it to possible to compile into a windows/linux executable without a 3rd party emulator?
1
vote
1answer
347 views
Drawing Lines on android with matrix
Can a matrix be used when drawing lines and paths on android?
the DrawBitmap mathod takes a matrix as argument, I cannot find anything similar
when drawing lines.
0
votes
0answers
228 views
Making a Background Scrolling in Stacking Game
Hmmm...Is it a good idea to use a LibGDX parallax background for making a stacking game (i.e. PAPA STACKer Lite)? For example, I'm starting to use the blocks to drag-n-drop it. Next, when the next ...
1
vote
2answers
171 views
which is better performance, using a disposable local variable or reusing a global one?
This is for an android game.
Suppose I have a function that is called several times for second and do some calculations involving an arraylist (or any other complex objects for what matter).
Which ...
0
votes
0answers
813 views
How To Scale Canvas In Android
I am writing a android game using Canvas as the way to draw everything, the problem is that when i run it on different android phones the canvas dosn't change size i tried using canvas.scale() but ...
2
votes
2answers
292 views
How to detect a touch on transparent area of an image in a (libgdx) stage?
Can some one please help to detect a touch on an image which I am using as an actor in a stage. The image is actually a long diagnol brush which has plenty of transparent area. The problem is when I ...
1
vote
2answers
314 views
How to implement a birds eye view of 2D Grid Map using Android
I'm a true beginner with using the android platform and I'm having difficulties on implementing a 2D grid system for a tower defense type game. Where I can place towers on a specific tile and enemies ...
2
votes
1answer
118 views
How to manage my model
I have in my model, a list of Classes : Player, NonPlayerCharacter, Monster, Item, NonMovableItem etc
With AndEngine I've a list of sprite for each piece of my model,
How can I manage the ...
