Android Open Source - Froggy Scroll Handler

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Back to project page Froggy.
License

The source code is released under:
GNU General Public License
If you think the Android project Froggy listed in this page is inappropriate, such as containing malicious code/tools or violating the copyright, please email info at java2s dot com, thanks.
Java Source Code

package com.mopgames.GameObjects;
/*from  w  w  w  .j  av a2  s  .  c o m*/
public class ScrollHandler {
  private Frog frog;
  private Lilypad lilypad1, lilypad2, lilypad3;
  private Background frontBackground, backBackground;
  private MenuItem logo, help;
  public static final int SCROLL_SPEED = -120; // -135
  private float frogStartX, frogStartY;

  public ScrollHandler(float width, float yPos) {
    frogStartX = 71; // (int) (width / 2f - 8.5f);
    frogStartY = yPos - 124; // yPos - 71;
    frontBackground = new Background(0, yPos - 20, 136, 43, SCROLL_SPEED);
    backBackground = new Background(frontBackground.getTailX(), yPos - 20,
        136, 43, SCROLL_SPEED);
    frog = new Frog(frogStartX, frogStartY, 17, 12, SCROLL_SPEED);

    lilypad1 = new Lilypad(210, yPos, SCROLL_SPEED, yPos);
    lilypad2 = new Lilypad(lilypad1.getTailX() + Lilypad.LILYPAD_GAP, yPos,
        SCROLL_SPEED, yPos);
    lilypad3 = new Lilypad(lilypad2.getTailX() + Lilypad.LILYPAD_GAP, yPos,
        SCROLL_SPEED, yPos);
    logo = new MenuItem(136 / 2 - 42, (int) yPos - 128, 91 /* / 1.2f */
    , 42 /* / 1.2f */, SCROLL_SPEED);
    help = new MenuItem(136 / 2, (int) yPos, 91, 42, SCROLL_SPEED);
    onRestart();
  }

  public void updateMenu(float delta) {
    frontBackground.update(delta);
    backBackground.update(delta);

    // Same with background
    if (frontBackground.isScrolledLeft()) {
      frontBackground.reset(backBackground.getTailX());

    } else if (backBackground.isScrolledLeft()) {
      backBackground.reset(frontBackground.getTailX());

    }
  }

  public void update(float delta) {
    // Update our objects
    frontBackground.update(delta);
    backBackground.update(delta);
    frog.update(delta);
    lilypad1.update(delta);
    lilypad2.update(delta);
    lilypad3.update(delta);
    logo.update(delta);
    help.update(delta);

    // Check if any of the lilypads are scrolled left,
    // and reset accordingly
    if (lilypad1.isScrolledLeft()) {
      lilypad1.reset(lilypad3.getTailX());
    } else if (lilypad2.isScrolledLeft()) {
      lilypad2.reset(lilypad1.getTailX());
    } else if (lilypad3.isScrolledLeft()) {
      lilypad3.reset(lilypad2.getTailX());
    }

    // Same with background
    if (frontBackground.isScrolledLeft()) {
      frontBackground.reset(backBackground.getTailX());

    } else if (backBackground.isScrolledLeft()) {
      backBackground.reset(frontBackground.getTailX());

    }
  }

  public void stop() {
    frontBackground.stop();
    backBackground.stop();
    lilypad1.stop();
    lilypad2.stop();
    lilypad3.stop();
    frog.stop();
  }

  public boolean collidesLand(Frog frog) {
    // if (!lilypad1.isScored()
    // && lilypad1.getX() + (lilypad1.getWidth() / 2) < frog.getX()
    // + frog.getWidth()) {
    // addScore(1);
    // lilypad1.setScored(true);
    // // AssetLoader.coin.play();
    // } else if (!lilypad2.isScored()
    // && lilypad2.getX() + (lilypad2.getWidth() / 2) < frog.getX()
    // + frog.getWidth()) {
    // addScore(1);
    // lilypad2.setScored(true);
    // // AssetLoader.coin.play();
    //
    // } else if (!lilypad3.isScored()
    // && lilypad3.getX() + (lilypad3.getWidth() / 2) < frog.getX()
    // + frog.getWidth()) {
    // addScore(1);
    // lilypad3.setScored(true);
    // // AssetLoader.coin.play();
    //
    // }

    return (lilypad1.collidesLand(frog) || lilypad2.collidesLand(frog) || lilypad3
        .collidesLand(frog));
  }

  public float getFloor(Frog frog) {
    if (lilypad1.collidesLand(frog))
      return lilypad1.getHitBox().getY();
    else if (lilypad2.collidesLand(frog))
      return lilypad2.getHitBox().getY();
    else if (lilypad3.collidesLand(frog))
      return lilypad3.getHitBox().getY();
    return lilypad1.getHitBox().getY();
  }

  public Background getFrontBackground() {
    return frontBackground;
  }

  public Background getBackBackground() {
    return backBackground;
  }

  public Lilypad getLilypad1() {
    return lilypad1;
  }

  public Lilypad getLilypad2() {
    return lilypad2;
  }

  public Lilypad getLilypad3() {
    return lilypad3;
  }

  public Frog getFrog() {
    return frog;
  }

  public MenuItem getLogo() {
    return logo;
  }
  
  public MenuItem getHelp() {
    return help;
  }


  public void onRestart() {
    frontBackground.onRestart(0, SCROLL_SPEED);
    backBackground.onRestart(frontBackground.getTailX(), SCROLL_SPEED);
    lilypad1.onRestart(170, SCROLL_SPEED);
    lilypad2.onRestart(lilypad1.getTailX() + Lilypad.LILYPAD_GAP,
        SCROLL_SPEED);
    lilypad3.onRestart(lilypad2.getTailX() + Lilypad.LILYPAD_GAP,
        SCROLL_SPEED);
    frog.onRestart(frogStartX, frogStartY);
    logo.onRestart(136 / 2 - 42);
    help.onRestart(136 / 2);
  }
}
Java Source Code List
