For some reason when I put in List<Actor> Ball = getObjects (GoldBall.class); it says it is uneven. Can someone help?
import greenfoot.*;
import java.util.List;
public class Board extends World
{
private int board;
private int tries;
private int rolls;
private int score;
private Text boardLabel;
private Text tryLabel;
private Text rollsLabel;
private Text scoreLabel;
private int ballsMoving;
private boolean failed;
private boolean cleared;
private boolean displayPoints = false;
/**
* Definition of the board setups.
* One row defines one board setup.
* The first number is the number of rolls for this board.
* The 2nd and 3rd are the coordinates for the gold ball.
* Following that: every pair places a steel ball, unless:
* if the next number is 0, then following is a horizontal bar;
* if the next number is 1, then following is a vertical bar
*/
private static final int[][] setups = { // board = 640x640
{ 1, 320, 480, 320, 200 },
{ 2, 320, 320, 180, 320, 460, 320 },
{ 2, 320, 480, 200, 200, 440, 200 },
{ 3, 320, 320, 290, 480, 200, 190, 470, 230 },
{ 1, 120, 520, 420, 120, 520, 180 },
{ 2, 320, 480, 320, 180 , 0, 225, 315},
{ 1, 140, 400, 470, 400 , 1, 320, 433, 0, 320, 100}, // indirect over 1 bar
{ 1, 320, 480, 320, 90, 320, 200, 320, 310 },
{ 4, 320, 320, 200, 320, 440, 320, 260, 220, 380, 220, 260, 420, 380, 420 }, // six star
{ 1, 300, 520, 90, 320, 300, 100, 0, 390, 320},
{ 2, 360, 500, 90, 340, 325, 100, 570, 250, 0, 360, 330},
{ 2, 320, 320, 450, 95, 560, 140, 190, 545, 80, 500 },
{ 4, 320, 480, 120, 120, 120, 220, 220, 120, 220, 220, 320, 120, 320, 220, // 10 in 2-rows
420, 120, 420, 220, 520, 120, 520, 220 },
{ 1, 284, 546, 387, 293 , 1, 75, 320, 0, 320, 75, 0, 420, 380 }, // indirect over 2 bars
{ 3, 536, 130, 146, 508 , 0, 410, 230, 0, 230, 410 },
{ 4, 320, 135, 110, 200, 530, 200, 240, 470, 400, 470, 0, 320, 340 },
};
public Board()
{
// Create a new world with 20x20 cells with a cell size of 10x10 pixels.
super (840, 640, 1);
Greenfoot.setSpeed (52);
setPaintOrder (ScoreBoard.class, Points.class, Ball.class, Arrow.class);
board = 1;
tries = 3;
score = 0;
createCounters ();
setUp (board);
}
/**
* Do the acting for the board: check whether w succeeded or failed.
*/
public void act()
{
if (cleared) {
Ball goldBall = getGoldBall();
if (goldBall != null) {
addObject (new Points ("200"), goldBall.getX()+70, goldBall.getY()-30);
Greenfoot.playSound("ping.wav");
addScore (300 + rolls*300); // 100 for clearing the board
// 200 for gold ball still on it,
// plus 300 per unused roll
}
else {
addScore (100 + rolls*300); // 100 for clearing the board
// plus 300 per unused roll
}
cleared = false;
displayPoints = true;
}
else if (displayPoints) {
if ( pointsImageGone() ) {
displayPoints = false;
nextBoard();
}
}
else if (failed) {
lostBoard ();
}
}
/**
* Record that a ball has started or stopped moving.
*/
public void ballMoving(boolean moves)
{
if (moves) {
ballsMoving++;
}
else {
ballsMoving--;
if (ballsMoving == 0) { // all movement stopped
if ( isBoardClear() ) {
cleared = true;
}
else if (rolls == 0) {
failed = true;
}
else if (! haveGoldBall()) {
failed = true;
}
}
}
}
/**
* Record that a roll has been completed.
*/
public void countRoll()
{
rolls--;
rollsLabel.setText("Rolls left: " + rolls);
}
/**
* A steel ball dropped off the board.
*/
public void steelBallDropped()
{
addScore(10);
}
/**
* The gold ball dropped off the board.
*/
public void goldBallDropped()
{
// nothing to do - we wait until all movement has stopped before doing anything
//failed = true;
}
/**
* Check whether the board has been cleared.
*/
private boolean isBoardClear()
{
int balls = getObjects (Ball.class).size();
int gold = getObjects (GoldBall.class).size();
return balls - gold == 0;
}
/**
* Check whether we still have the gold ball on the board.
*/
private boolean haveGoldBall()
{
return getGoldBall() != null;
}
/**
* Check whether the board has been cleared.
*/
private boolean pointsImageGone()
{
return getObjects (Points.class).size() == 0;
}
/**
* Check whether the gold ball is on the board.
*/
private Ball getGoldBall()
{
List<Actor> Ball = getObjects (GoldBall.class);
if (Ball.size() == 0) {
return null;
}
else {
return (Ball) Ball.get(0);
}
}
/**
* Record the fact that an attempt at a board has been unsuccessful.
* Start over if there are tries left, else game over.
*/
public void lostBoard()
{
tries--;
tryLabel.setText ("Tries left: " + tries);
if (tries == 0) {
Greenfoot.playSound("sad-trombone.wav");
gameOver("Game Over");
}
else {
Greenfoot.delay(100);
setUp (board);
}
}
/**
* Game's up.
*/
public void gameOver(String message)
{
addObject (new ScoreBoard(message, score), 320, getHeight()/2);
Greenfoot.stop();
}
/**
* Record a score.
*/
public void addScore(int points)
{
score = score + points;
scoreLabel.setText ("Score: " + score + " ");
}
/**
* Check whether a given point is off the board.
*/
public boolean isOffBoard (int x, int y)
{
return (x < 20 || x > 620 || y < 20 || y > 620);
}
/**
* Show the next board (if there is one). Otherwise game's over with a win.
*/
private void nextBoard()
{
Greenfoot.delay(60);
board++;
if (board % 3 == 0) {
tries++;
tryLabel.setText("Tries left: " + tries);
}
if (board <= setups.length) {
boardLabel.setText("BOARD " + board);
setUp (board);
}
else {
gameOver ("You win!");
}
}
private void setUp(int boardNumber)
{
removeObjects (getObjects (Ball.class));
removeObjects (getObjects (Bar.class));
int[] current = setups[boardNumber-1];
int i = 0;
rolls = current[i++];
addObject ( new GoldBall(), current[i++], current[i++]);
while (i < current.length) {
int next = current[i++];
if (next == 0) {
addObject ( new Bar(false), current[i++], current[i++]);
}
else if (next == 1) {
addObject ( new Bar(true), current[i++], current[i++]);
}
else {
addObject ( new Ball(), next, current[i++]);
}
}
rollsLabel.setText ("Rolls left: " + rolls);
failed = false;
cleared = false;
ballsMoving = 0;
}
private void createCounters()
{
boardLabel = new Text("BOARD " + board);
addObject (boardLabel, 670, 120);
tryLabel = new Text("Tries left: " + tries);
addObject (tryLabel, 670, 150);
rollsLabel = new Text("Rolls left: " + rolls);
addObject (rollsLabel, 670, 200);
scoreLabel = new Text("Score: " + score + " ");
addObject (scoreLabel, 670, 230);
}
}
