I'm developing my first android game with libgdx, using as a base this amazing tutorial (http://www.kilobolt.com/day-11-supporting-iosandroid--splashscreen-menus-and-tweening.html). Everything works properly except for the tweening that I’m using in the splash screen to show the logo of my “company”. The weird part is that the logo works just fine in the desktop version, but in the android version is not being showed.
I’m using the same class that they used in the app developed in the tutorial. By the way, this app’s splash screen works fine in both versions.
I have compared my app and the tutorial’s app, but I found no differences except for this on the package explorer. I don't know if it means something:
http://i1223.photobucket.com/albums/dd507/victormmenendez/tut.jpg
package com.victor.Screens;
import aurelienribon.tweenengine.BaseTween;
import aurelienribon.tweenengine.Tween;
import aurelienribon.tweenengine.TweenCallback;
import aurelienribon.tweenengine.TweenEquations;
import aurelienribon.tweenengine.TweenManager;
import com.badlogic.gdx.Gdx;
import com.badlogic.gdx.Screen;
import com.badlogic.gdx.graphics.GL10;
import com.badlogic.gdx.graphics.g2d.Sprite;
import com.badlogic.gdx.graphics.g2d.SpriteBatch;
import com.victor.TweenAccessors.SpriteAccessor;
import com.victor.FZHelpers.AssetLoader;
import com.victor.FZombies.FZGame;
public class SplashScreen implements Screen
{
private TweenManager manager;
private SpriteBatch batcher;
private Sprite sprite;
private FZGame game;
public SplashScreen(FZGame game)
{
this.game = game;
}
#Override
public void show()
{
sprite = new Sprite(AssetLoader.logo);
sprite.setColor(1, 1, 1, 0);
float width = Gdx.graphics.getWidth();
float height = Gdx.graphics.getHeight();
float desiredWidth = width * .4f;
float scale = desiredWidth / sprite.getWidth();
sprite.setSize(sprite.getWidth() * scale, sprite.getHeight() * scale);
sprite.setPosition((width / 2) - (sprite.getWidth() / 2), (height / 2) - (sprite.getHeight() / 2));
setupTween();
batcher = new SpriteBatch();
}
private void setupTween()
{
Tween.registerAccessor(Sprite.class, new SpriteAccessor());
manager = new TweenManager();
TweenCallback cb = new TweenCallback()
{
#Override
public void onEvent(int type, BaseTween<?> source)
{
game.setScreen(new GameScreen());
}
};
Tween.to(sprite, SpriteAccessor.ALPHA, .8f).target(1).ease(TweenEquations.easeInOutQuad).repeatYoyo(1, .4f).setCallback(cb).setCallbackTriggers(TweenCallback.COMPLETE).start(manager);
}
#Override
public void render(float delta)
{
manager.update(delta);
Gdx.gl.glClearColor(1, 0, 0, 1);
Gdx.gl.glClear(GL10.GL_COLOR_BUFFER_BIT);
batcher.begin();
sprite.draw(batcher);
batcher.end();
}
}
Thank you very much for your help. I'm sorry if in any moment I couldn’t explain myself, but English is not my primary language. If you need any extra piece of code, I can add it.
You need to make sure you export the tween jar files in your Build Path. For Eclipse, you can Right-click on the project, choose "Build Path" > "Configure Build Path", go to the "Order and Export" tab on the right side, and make sure that the tween jar files are checked in the list there.
Related
I have an issue using LibGDX with assets directory. I actually build my project folder this way. I follow this tutorial to learn. (I work on Eclipse)
The code I use is :
package com.mygdx.game;
import com.badlogic.gdx.ApplicationListener;
import com.badlogic.gdx.Gdx;
import com.badlogic.gdx.graphics.GL20;
import com.badlogic.gdx.graphics.g2d.Sprite;
import com.badlogic.gdx.graphics.g2d.SpriteBatch;
import com.badlogic.gdx.graphics.g2d.TextureAtlas;
import com.badlogic.gdx.graphics.g2d.TextureAtlas.AtlasRegion;
import com.badlogic.gdx.utils.Timer;
import com.badlogic.gdx.utils.Timer.Task;
public class MyGdxGame implements ApplicationListener {
private SpriteBatch batch;
private TextureAtlas textureAtlas;
private Sprite sprite;
private int currentFrame = 1;
private String currentAtlasKey = new String("0001");
#Override
public void create() {
batch = new SpriteBatch();
// THE PROBLEM IS UNDER THIS LINE
textureAtlas = new TextureAtlas(Gdx.files.internal("spritesheet.atlas"));
AtlasRegion region = textureAtlas.findRegion("0001");
sprite = new Sprite(region);
sprite.setPosition(120, 100);
sprite.scale(2.5f);
Timer.schedule(new Task(){
#Override
public void run() {
currentFrame++;
if(currentFrame > 20)
currentFrame = 1;
// ATTENTION! String.format() doesnt work under GWT for god knows why...
currentAtlasKey = String.format("%04d", currentFrame);
sprite.setRegion(textureAtlas.findRegion(currentAtlasKey));
}
}
,0,1/30.0f);
}
#Override
public void dispose() {
batch.dispose();
textureAtlas.dispose();
}
#Override
public void render() {
Gdx.gl.glClearColor(0, 0, 0, 1);
Gdx.gl.glClear(GL20.GL_COLOR_BUFFER_BIT);
batch.begin();
sprite.draw(batch);
batch.end();
}
#Override
public void resize(int width, int height) {
}
#Override
public void pause() {
}
#Override
public void resume() {
}
(if the code is hard to read I use exactly the same code that is in the tutorial linked below)
My package explorer looks like this :
imgur link
And it returns me :
Exception in thread "LWJGL Application" com.badlogic.gdx.utils.GdxRuntimeException: File not found: spritesheet.atlas (Internal)
at com.badlogic.gdx.files.FileHandle.read(FileHandle.java:136)
at com.badlogic.gdx.graphics.g2d.TextureAtlas$TextureAtlasData.(TextureAtlas.java:103)
at com.badlogic.gdx.graphics.g2d.TextureAtlas.(TextureAtlas.java:231)
at com.badlogic.gdx.graphics.g2d.TextureAtlas.(TextureAtlas.java:226)
at com.badlogic.gdx.graphics.g2d.TextureAtlas.(TextureAtlas.java:216)
at com.mygdx.game.MyGdxGame.create(MyGdxGame.java:23)
at com.badlogic.gdx.backends.lwjgl.LwjglApplication.mainLoop(LwjglApplication.java:149)
at com.badlogic.gdx.backends.lwjgl.LwjglApplication$1.run(LwjglApplication.java:126)
I tried some trick like Project>Clean, refreshing, close and re-open Eclipse and even recreated a project. Any idea ?
Okay, I found the trick. For those which encounter the same issue (working on Eclipse but it's pretty the same whatever the IDE is) there is one thread on stack overflow already existing which give additional solutions.
For me I had to set-up the "working directory" (for the desktop main for exemple). To do this go on Run>Run configuration>Arguments and at working directory's section there is Default and Other. Tick Other's box and me I had to write ${workspace_loc:my-gdx-game-core/assets} but I think it works like ${workspace_loc:[name-of-your-core-directory]/assets}. Hope it helped.
maybe you haven't linked the asset folder, if so,
try right click on my-gdx-game-desktop, in properties dialog select Java Build Path, click link source button, then navigate to the assets folder.
if you're already set it, try readd with this step, restart eclipse if needed
package com.test.game;
import com.badlogic.gdx.Gdx;
import com.badlogic.gdx.Screen;
import com.badlogic.gdx.graphics.Camera;
import com.badlogic.gdx.graphics.GL20;
import com.badlogic.gdx.graphics.OrthographicCamera;
import com.badlogic.gdx.graphics.Texture;
import com.badlogic.gdx.graphics.g2d.Sprite;
import com.badlogic.gdx.graphics.g2d.SpriteBatch;
import com.badlogic.gdx.math.Rectangle;
import com.badlogic.gdx.math.Vector2;
public class Splash implements Screen {
private Sprite splash;
private SpriteBatch batch;
private float height = 1920;
private float width = 1080;
private float aspectratio = width/height;
#Override
public void render(float delta){
Gdx.gl.glClearColor(0,0,0,1);
Gdx.gl.glClear(GL20.GL_COLOR_BUFFER_BIT);
batch.begin();
splash.draw(batch);
batch.end();
}
#Override
public void resize(int width, int height){
}
#Override
public void show(){
batch = new SpriteBatch();
Texture splashTexture = new Texture("zeuswallpaperphone1.jpg");
splash = new Sprite(splashTexture);
//splash.setSize(Gdx.graphics.getWidth(), Gdx.graphics.getHeight());
splash.rotate(90);
splash.setPosition(Gdx.graphics.getWidth()/2 - splashTexture.getWidth()/2, Gdx.graphics.getHeight()/2 - splashTexture.getHeight()/2);
}
#Override
public void hide(){
}
#Override
public void pause(){
}
#Override
public void resume(){
}
#Override
public void dispose(){
}
}
This is the splash screen of my game. I am trying to get the splash screen image to adjust for different screen sizes. Is there a way that I set the screen to one size? I want to set the screen to a size of 1280 x 720. And also will this keep the touch inputs the same? I do not understand why this is so hard in android. I have searched the internet vigorously trying to find a solution. I am also sorry if this question was already answered in another post. It seems that most answers to this problem are really old. I have not been able to find an answer the the problem that I have. I am looking for any help so please someone help me out. I have tried various methods and nothing seems to be working. Thank you in advance for your help. I hate that stack overflow makes you type a certain amount. There are a few libgdx tutorials out there. So if someone could watch one and get back to me that would be great. I have tried playing with the Viewport and Orthographic camera but when I run the game it will not adjust. On iOS you just set the screen size and you are good to go on all devices. They need that in android studio. Nothing seems to be working.
This is the code I have. Thanks for your help. This is crazy they still want me to type more.
I think you need to use a camera and viewport:
OrthographicCamera hudCamera = new OrthographicCamera();
Viewport hudViewport = new ScreenViewport(hudCamera);
public void create {
// Your code
hudViewport.apply(true);
}
public void render(float delta){
Gdx.gl.glClearColor(0,0,0,1);
Gdx.gl.glClear(GL20.GL_COLOR_BUFFER_BIT);
batch.setProjectionMatrix(hudCamera.combined);
batch.begin();
splash.draw(batch);
batch.end();
}
public void resize(int width, int height) {
hudViewport.update(width, height);
hudViewport.apply(true);
}
Make sure you are setting the correct size in your main method.
So i am having trouble keeping a display of the score in a game i am creating. I was wondering how would i go about doing that? this is what i have so far:
package com.catgame.game;
import com.badlogic.gdx.ApplicationAdapter;
import com.badlogic.gdx.Gdx;
import com.badlogic.gdx.InputProcessor;
import com.badlogic.gdx.audio.Music;
import com.badlogic.gdx.audio.Sound;
import com.badlogic.gdx.graphics.GL20;
import com.badlogic.gdx.graphics.OrthographicCamera;
import com.badlogic.gdx.graphics.Texture;
import com.badlogic.gdx.graphics.g2d.BitmapFont;
import com.badlogic.gdx.graphics.g2d.Sprite;
import com.badlogic.gdx.graphics.g2d.SpriteBatch;
public class CatGame extends ApplicationAdapter implements InputProcessor {
SpriteBatch batch;
Sprite cat;
OrthographicCamera camera;
final float CAT_WIDTH = 0.75f;
final float CAT_HEIGHT = 0.50f;
Sound meow;
int score = 0;
String scorePrint;
BitmapFont scoreFont;
#Override
public void create () {
batch = new SpriteBatch();
cat = new Sprite(new Texture(Gdx.files.internal("Cat.png")));
cat.setSize(CAT_WIDTH,CAT_HEIGHT);
scoreFont = new BitmapFont(Gdx.files.internal("score.fnt"));
float aspectRatio = (float)Gdx.graphics.getHeight()/
(float)Gdx.graphics.getWidth();
scoreFont.getData().setScale(0.5f);
camera = new OrthographicCamera(CAT_HEIGHT * aspectRatio,
CAT_HEIGHT);
camera.position.set(CAT_WIDTH/2,CAT_HEIGHT/2,0);
meow = Gdx.audio.newSound(Gdx.files.internal("Meow.wav"));
Gdx.input.setInputProcessor(this);
scorePrint = "Hello";
}
#Override
public void render () {
Gdx.gl.glClearColor(0, 0, 0, 1);
Gdx.gl.glClear(GL20.GL_COLOR_BUFFER_BIT);
camera.update();
batch.begin();
batch.setProjectionMatrix(camera.combined);
//cat.draw(batch);
scoreFont.draw(batch,scorePrint,camera.position.x,camera.position.y);
batch.end();
}
I have tried scoreFont.draw() method but it doesn't seem to work. not sure why, maybe my positioning is wrong since I have an ortho camera or something. But When i tried to used the draw font, nothing appeared. The red circle in the image below shows where i would want the score around.
http://imgur.com/gallery/ywFF6SZ/new
Draw your font in render method and change your font colour or background colour.It might be possible because you black background colour match with BitmapFont colour.
You need to draw the score (or whatever you want to see on screen) inside the render function, because each render clears the canvas and redraws.
You are drawing the font too big. When you don't specify a scale for the font before drawing it, it draws it at a scale of one font pixel to one world unit. In your case, your camera height is less than one, so you are only seeing a fraction of one pixel of the first letter in your text, which is likely just empty space. Call setScale on the font after setting up your camera, using the appropriate scale to get it down to the size you want.
Here's the line I'm getting the error on:
bucket.x = touchPos.x - 64 / 2;
Here's the full code block:
package com.badlogic.drop;
import com.badlogic.gdx.ApplicationAdapter;
import com.badlogic.gdx.Gdx;
import com.badlogic.gdx.audio.Music;
import com.badlogic.gdx.audio.Sound;
import com.badlogic.gdx.graphics.GL20;
import com.badlogic.gdx.graphics.OrthographicCamera;
import com.badlogic.gdx.graphics.Texture;
import com.badlogic.gdx.graphics.g2d.SpriteBatch;
import com.badlogic.gdx.math.Vector3;
import java.awt.Rectangle;
public class Drop extends ApplicationAdapter {
private Texture dropImage;
private Texture bucketImage;
private Sound dropSound;
private Music rainMusic;
private OrthographicCamera camera;
private SpriteBatch batch;
private Rectangle bucket;
#Override
public void create () {
// load the images for the droplet and the bucket, 64x64 pixels each
dropImage = new Texture(Gdx.files.internal("droplet.png"));
bucketImage = new Texture(Gdx.files.internal("bucket.png"));
//instantiating the rectangle and specify its initial values
bucket = new Rectangle();
bucket.x = 800 / 2 - 64 / 2;
bucket.y = 20;
bucket.width = 64;
bucket.height = 64;
// setting the camera to show an area of the game world that is 800x480 units wide
camera = new OrthographicCamera();
camera.setToOrtho(false, 800, 480);
// creating the sprite batch
batch = new SpriteBatch();
// load the drop sound effect and the rain background "music"
dropSound = Gdx.audio.newSound(Gdx.files.internal("drop.wav"));
rainMusic = Gdx.audio.newMusic(Gdx.files.internal("rain.mp3"));
// start the playback of the background music immediately
rainMusic.setLooping(true);
rainMusic.play();
}
#Override
public void render () {
Gdx.gl.glClearColor(0, 0, 0.2f, 1);
Gdx.gl.glClear(GL20.GL_COLOR_BUFFER_BIT);
// render the bucket
batch.setProjectionMatrix(camera.combined);
batch.begin();
batch.draw(bucketImage, bucket.x, bucket.y);
batch.end();
// telling the camera to make sure its updated
camera.update();
// making the button move through touch
if(Gdx.input.isTouched()) {
Vector3 touchPos = new Vector3();
touchPos.set(Gdx.input.getX(), Gdx.input.getY(), 0);
camera.unproject(touchPos);
bucket.x = touchPos.x - 64 / 2;
}
}
}
The error I'm receiving is telling me I have an incompatible types: Possible lossy conversion from float to int
Thanks in advance for the help, this is my first time posting to stackoverflow, I hope I formatted this correctly if you have any other questions let me know. :)
Based on the error message, your touchPos.x is a float. The compiler is telling you that when you try to put a floating-point value into an integer type, you will lose the fractional part (and if the number is really big, it might not fit), and you have to explicitly okay the conversion with a cast:
bucket.x = (int) (touchPos.x - 64) / 2;
Note also that you almost certainly meant the above version with parentheses; standard order of operations applies in Java. If you didn't, make your code clearer by just subtracting 32 instead.
I'm trying to get a basic Java applet displaying a simple image up and running but for some reason (I suspect a path issue or a IntelliJ setting I'm not familiar with) it's not showing up.
Here's my code:
import java.applet.Applet;
import java.awt.*;
public class Main extends Applet{
private Image logo;
#Override
public void init() {
logo = getImage(getDocumentBase(), "image.jpg");
}
#Override
public void paint(Graphics g) {
g.drawRect(0, 0, getWidth() - 1, getHeight() - 1);
g.drawImage(logo, 10, 10, this);
}
}
The image is located in the same directory as the code itself.
Any idea what's going on here?
Thanks
Try putting that image in a folder 'Resources' in your project.
Also right click that folder -> Mark as Resources. I did this many times and it worked