private Point getRandomShot() {
Random random = new Random();
Point nextShot = null;
boolean validShot = false;
int nextX;
int nextY;
int origX = origHit.getX();
int origY = origHit.getY();
while (!validShot) {
if (random.nextInt() % 2 == 0) {
if (random.nextInt() % 2 == 0) nextX = origX - 1;
else nextX = origX + 1;
nextY = origY;
} else {
nextX = origX;
if (random.nextInt() % 2 == 0) nextY = origY - 1;
else nextY = origY + 1;
}
nextShot = new Point(nextX, nextY);
if (!board.isValidShot(nextShot) || alreadyTriedShot(nextShot)) validShot = false;
else validShot = true;
}
return nextShot;
}
private boolean alreadyTriedShot(Point shot) {
for (Point previousShot : missed) {
if (previousShot.equals(shot)) return true;
}
return false;
}
private Point getShotReverseSequence() {
Point nextShot = null;
if (isXIncreasing()) nextShot = new Point(origHit.getX() - 1, origHit.getY());
else if (isXDecreasing()) nextShot = new Point(origHit.getX() + 1, origHit.getY());
else if (isYIncreasing()) nextShot = new Point(origHit.getX(), origHit.getY() - 1);
else if (isYDecreasing()) nextShot = new Point(origHit.getX(), origHit.getY() + 1);
return nextShot;
}
private Point getShotInSequence() {
Point nextShot = null;
if (isXIncreasing()) nextShot = new Point(lastHit.getX() + 1, lastHit.getY());
else if (isXDecreasing()) nextShot = new Point(lastHit.getX() - 1, lastHit.getY());
else if (isYIncreasing()) nextShot = new Point(lastHit.getX(), lastHit.getY() + 1);
else if (isYDecreasing()) nextShot = new Point(lastHit.getX(), lastHit.getY() - 1);
return nextShot;
}
private boolean isYIncreasing() {
if (lastHit.getY() > origHit.getY()) return true;
else return false;
}
private boolean isXDecreasing() {
if (lastHit.getX() < origHit.getX()) return true;
else return false;
}