예제 #1
0
 /** Remove bullet from Shooter's list of bullets and GameActivity's list */
 public void removeGameObject() {
   theOneWhoShotMe.getMyBullets().remove(this);
   if (theOneWhoShotMe.isFriendly()) {
     GameLoop.friendlyBullets.remove(this);
   } else {
     GameLoop.enemyBullets.remove(this);
   }
   this.defaultCleanupOnRemoval(); // needs to be the last thing called for handler to remove all
   // callbacks
 }
예제 #2
0
 /**
  * @param positionOnShooterAsAPercentageOfWidthFromTheLeftSide 100 indicates right side of shoot,
  *     0 is left side, and 50 is middle
  */
 public void setXPositionOnShooterAsAPercentage(
     int positionOnShooterAsAPercentageOfWidthFromTheLeftSide) throws IllegalArgumentException {
   if (positionOnShooterAsAPercentageOfWidthFromTheLeftSide < 0
       || positionOnShooterAsAPercentageOfWidthFromTheLeftSide > 100) {
     throw new IllegalArgumentException("Not a valid percentage");
   }
   final int bulletWidth = this.getLayoutParams().width;
   final float posRelativeToShooter =
       (float)
           (theOneWhoShotMe.getWidth()
               * positionOnShooterAsAPercentageOfWidthFromTheLeftSide
               / 100.0);
   final float middleOfBulletOnShootingPos =
       (float) (posRelativeToShooter + theOneWhoShotMe.getX() - bulletWidth / 2.0);
   this.setX(middleOfBulletOnShootingPos);
 }
예제 #3
0
  public BulletView(
      RelativeLayout layout,
      Shooter shooter,
      float bulletSpeedY,
      int bulletDamage,
      int width,
      int height,
      int imageId) {
    super(layout, bulletSpeedY, 0, bulletDamage, 1, width, height, imageId);

    // set instance variables
    theOneWhoShotMe = shooter;

    // position bullet behind shooter
    ViewGroup parent = (ViewGroup) theOneWhoShotMe.getParent();
    if (parent != null) {
      parent.removeView(this); // bullet already added to parent in MovingView's instantiation
      int shooterIndex = parent.indexOfChild((View) theOneWhoShotMe);
      parent.addView(this, shooterIndex);

      // position bullet in middle of shooter
      //			if(shooter.isFriendly()){
      this.setY(theOneWhoShotMe.getY() + theOneWhoShotMe.getHeight() / 2); // middle	
      //			}else{
      //				this.setY(theOneWhoShotMe.getY() - theOneWhoShotMe.getHeight()/2);//middle
      //			}

      if (theOneWhoShotMe.isFriendly()) {
        setSpeedY(-Math.abs(bulletSpeedY));
        GameLoop.friendlyBullets.add(this);
      } else {
        setSpeedY(Math.abs(bulletSpeedY));
        GameLoop.enemyBullets.add(this);
      }
      theOneWhoShotMe.getMyBullets().add(this);
    } else {
      this.removeGameObject();
      // for some reason, shooters continue to fire even after being killed. This simple check
      // ensure that the shooter
      // has not been removed from his parent. If he has, then remove this bullet
    }
  }
예제 #4
0
  public void setBulletRotation() {
    float rotVal = 0;

    double arcTan = Math.atan(this.getSpeedX() / Math.abs(this.getSpeedY()));
    if (!theOneWhoShotMe.isFriendly()) {
      arcTan = Math.atan(-this.getSpeedX() / Math.abs(this.getSpeedY()));
      arcTan += Math.PI; // flip bullet image around so it is pointing downwards
    }
    rotVal = (float) Math.toDegrees(arcTan);

    this.setRotation(rotVal);
  }