Example #1
0
  public void animate() {
    // invert path.
    Coord path = PG.search(goby, gobx, profy, profx);
    // coord path = PG.search(profy,profx, goby,gobx);
    if (path == null) {
      display.setColor(Color.red);
      display.drawString("NO PATH TO TARGET!", 50, 100);
      System.out.println("no path");
      return;
    }
    int px = 0, py = 0; // for calculating graphical coords
    while (path != null) {
      px = getx(path.y, path.x);
      py = gety(path.y, path.x);
      display.drawImage(
          imagechar[PG.M[path.y][path.x]], (px - gap / 2), (py - gap / 2), gap, gap, null);
      //	      display.drawImage(imagechar[PG.M[path.y][path.x]],
      //				(path.x*gap),(path.y*gap)+yoff,gap,gap,null);

      System.out.printf("%d,%d: %d\n", path.y, path.x, PG.M[path.y][path.x]);

      try {
        Thread.sleep(250);
      } catch (Exception se) {
      }
      //	      display.drawImage(imageof[PG.M[path.y][path.x]],
      //				(path.x*gap),(path.y*gap)+yoff,gap,gap,null);
      //	      display.setColor(Color.red);
      //      	      display.fillOval((path.x*gap)+8,(path.y*gap)+yoff+8,4,4);
      // for animation:
      //	      display.drawImage(diamondgif,gobx*gap,goby*gap+yoff,gap,gap,null);

      if (!showtrace) // erase trail - redraw hexagon
      {
        display.setColor(colorof[PG.M[path.y][path.x]]);
        display.fillPolygon(HX[path.y][path.x]);
      }
      path = path.prev;
    } // with path!=null
    px = getx(goby, gobx);
    py = gety(goby, gobx);
    display.drawImage(diamondgif, px - gap / 2, py - gap / 2, gap, gap, null);
    display.drawImage(imagechar[PG.M[goby][gobx]], px - gap / 2, py - gap / 2, gap, gap, null);
  } // animate
Example #2
0
  public Pathfinder(int r, int c) // constructor
      {
    rows = r;
    cols = c;

    HX = new Hexagon[r][c];

    for (int i = 0; i < r; i++) {
      int odd = i % 2;
      for (int j = 0; j < c; j++) {
        HX[i][j] =
            new Hexagon(yoff / 2 + (j * 2 + odd) * hpdist, yoff + gap + (3 * gap / 2 * i), gap);
      }
    } // for i,j

    PG = new MyAstar(r, c); // note it's myastar, not astar

    XDIM = cols * hpdist * 2 + yoff; // ((cols+1)*gap*3)/2;
    YDIM = ((rows + 1) * gap * 3) / 2;
    this.setBounds(0, 0, XDIM + 5, YDIM + yoff + 5);
    this.setVisible(true);
    this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    display = this.getGraphics();

    diamondgif = Toolkit.getDefaultToolkit().getImage("gem1.gif");
    prepareImage(diamondgif, this);
    mangif = Toolkit.getDefaultToolkit().getImage("man15.gif");
    prepareImage(mangif, this);

    imagechar = new Image[4]; // image of character while on terrain type
    imagechar[Astar.OPEN] = mangif;
    imagechar[Astar.WATER] = Toolkit.getDefaultToolkit().getImage("boat.gif");
    prepareImage(imagechar[Astar.WATER], this);

    imagechar[Astar.DESERT] = Toolkit.getDefaultToolkit().getImage("camel.gif");
    prepareImage(imagechar[Astar.DESERT], this);

    imagechar[Astar.FOREST] = Toolkit.getDefaultToolkit().getImage("bear.gif");
    prepareImage(imagechar[Astar.FOREST], this);

    try {
      Thread.sleep(500);
    } catch (Exception e) {
    } // Synch with system
    // draw static background as a green rectangle
    display.setColor(Color.green);
    display.fillRect(0, 0, XDIM, YDIM + yoff); // fill background

    // generate random starting positions.
    // generate initial positions of professor and diamond
    do {
      gobx = (int) (Math.random() * PG.COLS);
      goby = (int) (Math.random() * PG.ROWS);
    } while (PG.M[goby][gobx] != PG.OPEN);
    do {
      profx = (int) (Math.random() * PG.COLS);
      profy = (int) (Math.random() * PG.ROWS);
    } while (PG.M[profy][profx] != PG.OPEN || Astar.distance(goby, gobx, profy, profx) < 20);

    // draw map
    drawmap();
    System.out.println(profy + "," + profx + " " + goby + "," + gobx);
    // draw professor and diamond, initial position
    int px = getx(profy, profx), py = gety(profy, profx); // center hx coords
    display.drawImage(
        imagechar[PG.M[profy][profx]], (px - gap / 2), (py - gap / 2), gap, gap, null);
    px = getx(goby, gobx);
    py = gety(goby, gobx);
    display.drawImage(diamondgif, px - gap / 2, py - gap / 2, gap, gap, null);
    /*
    display.drawImage(imagechar[PG.M[profy][profx]],
    		  (profx*gap),(profy*gap)+yoff,gap,gap,null);
    display.drawImage(diamondgif,gobx*gap,goby*gap+yoff,gap,gap,null);
     */
    animate();
  } // constructor