Advent of Code - Year 2024 - Day 15 - Java - libGDX Runtime

new Lwjgl3Application(new ApplicationAdapter() {
  ShapeRenderer shaper;
  OrthographicCamera ortho;
  Viewport viewport;
  float tileWidth, tileHeight;

  @Override public void create () {
    shaper = new ShapeRenderer();
    ortho = new OrthographicCamera();
    viewport = new FitViewport(640f, 480f, ortho);
    Gdx.input.setInputProcessor(new InputAdapter() {
      @Override public boolean keyDown (int keycode) {
        grid.print();
        switch (keycode) {
          case Keys.A -> useRobotCommand2(grid, robot, '<');
          case Keys.D -> useRobotCommand2(grid, robot, '>');
          case Keys.S -> useRobotCommand2(grid, robot, '^');
          case Keys.W -> useRobotCommand2(grid, robot, 'v');
          default -> {
            /*ignore*/}
        }
        grid.print();
        return false;
      };
    });
    tileWidth = Fn.ratio(Gdx.graphics.getWidth(), grid.columns);
    tileHeight = Fn.ratio(Gdx.graphics.getHeight(), grid.rows);
  }

  @Override public void render () {
    viewport.update(Gdx.graphics.getWidth(), Gdx.graphics.getHeight(), true);
    ScreenUtils.clear(Color.BLACK);
    shaper.setProjectionMatrix(ortho.combined);
    shaper.begin(ShapeType.Filled);
    grid.scan(shaper, (c, g, x, y, v) -> {
      switch (v) {
        case '.' -> {
          /*ignore*/}
        case '#' -> {
          c.setColor(Color.DARK_GRAY);
          c.rect(x * tileWidth, y * tileHeight, tileWidth, tileHeight);
          c.setColor(Color.WHITE);
        }
        case '[', ']' -> {
          c.setColor(Color.GRAY);
          c.rect(x * tileWidth, y * tileHeight, tileWidth, tileHeight);
          c.setColor(Color.WHITE);
        }
        case '@' -> {
            c.setColor(Color.YELLOW);
            c.rect(x * tileWidth, y * tileHeight, tileWidth, tileHeight);
            c.setColor(Color.WHITE);
          }
          default -> throw Fn.notExhaustive(v);
        }
        return true;
      });
      shaper.end();
    }
  });
}