final/src/LevelManager.java

import javax.sound.sampled.LineUnavailableException;
import javax.sound.sampled.UnsupportedAudioFileException;
import java.io.IOException;

public class LevelManager {
    public static int level = 1;
    public static int xSpawn = 0;
    public static int ySpawn = 600;

    public static String filePath;
    public static void setLevel(int level){
        LevelManager.level = level;
        if(level == 1){
            xSpawn = 0;
            ySpawn = 300;
            filePath = "saves/Level1.txt";
        } else if(level == 2){
            xSpawn = 200;
            ySpawn = 100;
            filePath = "saves/Level2.txt";
        }
        try {
            MapReader.inputMap(GamePanel.map, GamePanel.enemy,filePath);
        } catch (IOException | SpriteException e) {
            throw new RuntimeException(e);
        } catch (UnsupportedAudioFileException e) {
            throw new RuntimeException(e);
        } catch (LineUnavailableException e) {
            throw new RuntimeException(e);
        }
        GamePanel.player.reset();
    }
    public static void nextLevel(){
        setLevel(level+1);
    }
}