Your First apps with Libgdx

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Prepare the source code

Previously, we created the project gdx-hello using both the manual method and the other with a tool implementation.

Now you are ready for your first application

Go to the Desktop project gdx-hello and create a new class called game in a new package called my.works.jeux, the content of the game class will be as the following :

package my.works.game;

import com.badlogic.gdx.ApplicationListener;

public class Game implements ApplicationListener {

      @Override

      public void create() {

            // TODO Auto-generated method stub           

      } 

      @Override

      public void dispose() {

            // TODO Auto-generated method stub           

      } 

      @Override

      public void pause() {

            // TODO Auto-generated method stub

           

      } 

      @Override

      public void render() {

         Gdx.gl.glClear(GL10.GL_COLOR_BUFFER_BIT);   

         Gdx.gl.glClearColor(0, 1, 0, 1);           

      } 

      @Override

      public void resize(int arg0, int arg1) {

            // TODO Auto-generated method stub           

      } 

      @Override

      public void resume() {

            // TODO Auto-generated method stub           

      }

}

This source code is only for make the screen color green.

Create another class in the project gdx-hello we called this class DesktopLauncher and whose content is :

package my.works.game;

import com.badlogic.gdx.backends.jogl.JoglApplication;

public class DesktopLauncher {

      public static void main(String[] args) {

     

            new JoglApplication (new Game(),"Game title",480,320,false);

    }

}

Now, make the class main on the gdx-helloAndroid Project look like this:

package my.works.GdxhelloAndroid;

import my.works.game.Game;

import com.badlogic.gdx.backends.android.AndroidApplication;

import android.os.Bundle;

public class main extends AndroidApplication {

    /** Called when the activity is first created. */

    @Override

    public void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        initialize(new Game(), false);

      

    }

}

If you run the first project ( gdx-hello ) you will see this screen:

If you run the second project ( gdx-helloAndroid ) on your emulator you will see this:

To sum things up here is what we did :

 Congratulations ! This is your first apps but not your first great useful apps.

You can download the exported project gdx-hello

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