Ejemplo n.º 1
0
  /**
   * Initialize the list of path fragments. It is able to randomly generate a game path. It
   * recursively calls itself to add new path fragment to the game path until it is long enough to
   * cover the width of the panel.
   *
   * @param int targetLength: the horizontal distance for the path to cover. PathFragment
   *     previousFragment, null if is the first path fragment
   * @return none.
   */
  private void randomPath(int targetLength, PathFragment previousFragment) {
    int width = 80 + (int) (Math.random() * 100); // A random width for each
    // path fragment
    if (previousFragment == null) { // First path fragment
      // Randomly choose a starting point on the left side of the panel
      // and direction
      int y = random(TowerDefenseGame.WINDOW_HEIGHT);
      int direction = random(70);
      PathFragment newFragment = new PathFragment(0, y, width, direction);

      // Check if the new path is in bound
      while (!isInBound(newFragment.getPathEnd())) {
        direction = random(70);
        newFragment = new PathFragment(0, y, width, direction);
      }
      paths.add(newFragment);
      randomPath(targetLength - (int) (Math.cos(Math.toRadians(direction)) * width), newFragment);
    } else if (targetLength > 0) {
      int direction = randomDirection();
      PathFragment newFragment;
      double[] pt = previousFragment.getPathEnd();
      newFragment = new PathFragment((int) pt[0], (int) pt[1], width, direction);
      while (!isInBound(newFragment.getPathEnd())
          || direction == previousFragment.getDirection()
          || direction == previousFragment.getDirection() - 180
          || direction == previousFragment.getDirection() + 180) {
        direction = randomDirection();
        newFragment = new PathFragment((int) pt[0], (int) pt[1], width, direction);
      }
      paths.add(newFragment);
      randomPath(targetLength - (int) (Math.cos(Math.toRadians(direction)) * width), newFragment);
    }
  }
Ejemplo n.º 2
0
  /**
   * Paints all the components on the game map. Towers are painted first, then the path, then all
   * the enemies.
   *
   * @return none.
   */
  @Override
  public void paintComponent(Graphics g) {
    super.paintComponent(g);

    // Draws all the towers
    for (Tower tower : towers) {
      tower.draw(g);
    }

    // Draws the path
    for (PathFragment fragment : paths) {
      fragment.draw(g);
    }

    // Draws all the enemies
    for (Enemy enermy : enemies) {
      enermy.draw(g);
    }
  }