MyGdxGame.java

package com.thenewboston.buckyblaster;

import com.badlogic.gdx.ApplicationAdapter;
import com.badlogic.gdx.Gdx;
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.input.GestureDetector;
import com.badlogic.gdx.input.GestureDetector.GestureListener;
import com.badlogic.gdx.math.Vector2;

public class MyGdxGame extends ApplicationAdapter implements GestureListener {

    private SpriteBatch batch;
    private OrthographicCamera camera;
    private Texture texture;
    private Sprite sprite;

    @Override
    public void create() {
        batch = new SpriteBatch();

        //Orthographic for 2D, pass in width and height of area to display
        camera = new OrthographicCamera(Gdx.graphics.getWidth(), Gdx.graphics.getHeight());
        texture = new Texture(Gdx.files.internal("worldMap.png"));

        sprite = new Sprite(texture);

        //This would position the bottom left corner in the middle of the screen
        //sprite.setPosition(0, 0);

        //Move it down and left by half its length and width to center
        sprite.setPosition(-sprite.getWidth() / 2, -sprite.getHeight() / 2);

        Gdx.input.setInputProcessor(new GestureDetector(this));
    }

    @Override
    public void dispose() {
        batch.dispose();
        texture.dispose();
    }

    @Override
    public void render() {
        Gdx.gl.glClearColor(1, 1, 1, 1);
        Gdx.gl.glClear(GL20.GL_COLOR_BUFFER_BIT);

        //Use this camera to determine what to draw on the screen
        batch.setProjectionMatrix(camera.combined);
        batch.begin();
        sprite.draw(batch);
        batch.end();
    }

    //Change the cameras coordinates and update the view
    @Override
    public boolean pan(float x, float y, float deltaX, float deltaY) {
        camera.translate(-deltaX, deltaY);
        camera.update();
        return true;
    }

    @Override
    public boolean touchDown(float x, float y, int pointer, int button) {
        return false;
    }

    @Override
    public boolean tap(float x, float y, int count, int button) {
        return false;
    }

    @Override
    public boolean longPress(float x, float y) {
        return false;
    }

    @Override
    public boolean fling(float velocityX, float velocityY, int button) {
        return false;
    }

    @Override
    public boolean panStop(float x, float y, int pointer, int button) {
        return false;
    }

    @Override
    public boolean zoom(float initialDistance, float distance) {
        return false;
    }

    @Override
    public boolean pinch(Vector2 initialPointer1, Vector2 initialPointer2, Vector2 pointer1, Vector2 pointer2) {
        return false;
    }
    
}