/** getReady: Initialize the game */
private void getReady() {
// Make up the bricks
double brickPerWidth =
(getWidth() - DIST_BRICK_WALL * 2 - DIST_BRICK_BRICK * (NUM_BRICK_ROW - 1)) / NUM_BRICK_ROW;
double brickPerHeight = BRICK_HEIGHT;
double x_start = DIST_BRICK_WALL;
double y_start;
for (int i = 1; i <= NUM_BRICK_ROW; i++) {
for (int j = 1; j <= NUM_BRICK_COL; j++) {
y_start = 50 + (j - 1) * (DIST_BRICK_BRICK + brickPerHeight);
GRect tmpbrick = new GRect(brickPerWidth, brickPerHeight);
tmpbrick.setFilled(true);
add(tmpbrick, x_start, y_start);
}
x_start += DIST_BRICK_BRICK + brickPerWidth;
}
// Make up the board
board = new GRect(BOARD_WIDTH, BOARD_HEIGHT);
board.setFilled(true);
add(board, (getWidth() - BOARD_WIDTH) / 2, (getHeight() - 30));
// Place the ball
ball = new GOval(BALL_RADIUS * 2, BALL_RADIUS * 2);
ball.setFilled(true);
ball.setColor(Color.RED);
add(ball, (getWidth() - BALL_RADIUS * 2) / 2, (getHeight() - 30 - BALL_RADIUS * 2));
// Set up random generator
rgen = RandomGenerator.getInstance();
// Add Listeners
addMouseListeners();
}
public void run() {
GOval o = new GOval(40, 40);
o.setColor(Color.RED);
o.setFilled(true);
add(o, 100, 100);
while (true) {
pause(WAIT);
o.move(xMove, yMove);
}
}
private void PrecisionPaddle() {
if (ball.getY()
> HEIGHT
- PADDLE_Y_OFFSET
- PADDLE_HEIGHT
- BALL_RADIUS * 2) { // check if the ball drops below the paddle
double diff = ball.getY() - (HEIGHT - PADDLE_Y_OFFSET - PADDLE_HEIGHT - BALL_RADIUS * 2);
ball.move(0, -2 * diff); // move ball an amount equal to the amount it drops below the paddle
}
}
private void checkWall() {
boolean checkLeftWall = ball.getX() <= 0;
boolean checkRightWall = ball.getX() + BALL_RADIUS * 2 >= WIDTH;
boolean checkTop = ball.getY() <= 0;
if ((checkLeftWall) || (checkRightWall)) {
vx = -vx;
}
if (checkTop) {
vy = -vy;
}
}
private void drawBall() {
double x = WIDTH / 2 - BALL_RADIUS;
double y = HEIGHT / 2 - BALL_RADIUS;
double d = 2 * BALL_RADIUS;
ball = new GOval(x, y, d, d);
ball.setFilled(true);
add(ball);
}
private void checkObject() {
// x and y parameters for the different corners
double leftX = ball.getX();
double rightX = ball.getX() + (2 * BALL_RADIUS);
double upperY = ball.getY();
double lowerY = ball.getY() + (2 * BALL_RADIUS);
// check the corners for object
GObject upperLeft = checkCorner(leftX, upperY); // check upper-left corner
if (upperLeft == null) {
GObject upperRight = checkCorner(rightX, upperY); // check upper-right corner
}
GObject lowerLeft = checkCorner(leftX, lowerY); // //check lower-left corner
if (lowerLeft == null) {
GObject lowerRight = checkCorner(rightX, lowerY); // check lower-right corner
if ((lowerLeft == paddle)
&& (lowerRight == paddle)) { // When both lower corners hit paddle, change direction.
vy = -vy;
}
}
}
private void gaming() {
boolean loseOneTurn;
boolean win = false;
boolean stillAlive = true;
for (int i = NTURNS; i > 0; i--) { // loops for the number of turns.
GLabel life = showLifeCount(i);
waitForClick();
add(life);
while (stillAlive) { // the ball moves and bounces until the user loses or wins the turn.
moveBall();
loseOneTurn =
(ball.getY() >= HEIGHT); // user loses one turn when the ball falls under the paddle.
win = (brickCount == 0); // user wins when there is no brick left.
stillAlive = !(loseOneTurn || win);
}
if (win) break; // breaks from the loop if the user wins in one turn.
remove(ball);
createBall(); // a new ball appears on the center of the screen after one turn
stillAlive = true;
remove(life);
}
}
/* Draw graph line with the name and rating */
private void drawEntry(NameSurferEntry entry, int entryNumber) {
/* Draws graph line */
for (int i = 0; i < NDECADES - 1; i++) {
int position1 = entry.getRank(i);
int position2 = entry.getRank(i + 1);
double x1 = i * (getWidth() / NDECADES);
double x2 = (i + 1) * (getWidth() / NDECADES);
double y1 = 0;
double y2 = 0;
if (position1 != 0 && position2 != 0) {
y1 = GRAPH_MARGIN_SIZE + (getHeight() - GRAPH_MARGIN_SIZE * 2) * position1 / MAX_RANK;
y2 = GRAPH_MARGIN_SIZE + (getHeight() - GRAPH_MARGIN_SIZE * 2) * position2 / MAX_RANK;
} else if (position1 == 0 && position2 == 0) {
y1 = getHeight() - GRAPH_MARGIN_SIZE;
y2 = y1;
} else if (position1 == 0) {
y1 = getHeight() - GRAPH_MARGIN_SIZE;
y2 = GRAPH_MARGIN_SIZE + (getHeight() - GRAPH_MARGIN_SIZE * 2) * position2 / MAX_RANK;
} else {
y1 = GRAPH_MARGIN_SIZE + (getHeight() - GRAPH_MARGIN_SIZE * 2) * position1 / MAX_RANK;
y2 = getHeight() - GRAPH_MARGIN_SIZE;
}
GLine line = new GLine(x1, y1, x2, y2);
/* Set line color */
if (entryNumber % 4 == 0) {
line.setColor(Color.BLUE);
} else if (entryNumber % 4 == 1) {
line.setColor(Color.RED);
} else if (entryNumber % 4 == 2) {
line.setColor(Color.MAGENTA);
} else if (entryNumber % 4 == 3) {
line.setColor(Color.BLACK);
}
add(line);
}
/* Add label with the name and ranking */
for (int i = 0; i < NDECADES; i++) {
String name = entry.getName();
int position = entry.getRank(i);
String positionString = Integer.toString(position);
String label = name + " " + positionString;
double x = i * (getWidth() / NDECADES) + 10;
double x1 = x - NDECADES;
double y;
int R = 5;
if (position != 0) {
y = GRAPH_MARGIN_SIZE + (getHeight() - GRAPH_MARGIN_SIZE * 2) * position / MAX_RANK;
} else {
/* Add "*" if name was not used and remove marker point */
label = name + " *";
y = getHeight() - GRAPH_MARGIN_SIZE - 10;
R = 0;
}
/* Add marker point */
GOval marker = new GOval(x1, y - 2, R, R); /* Got "y-2" by scientific research =) */
marker.setFilled(true);
GLabel nameLabel = new GLabel(label, x, y);
nameLabel.setFont(new Font("Times Roman", Font.BOLD, 12));
/* Set label color */
if (entryNumber % 4 == 0) {
nameLabel.setColor(Color.BLUE);
marker.setColor(Color.BLUE);
} else if (entryNumber % 4 == 1) {
nameLabel.setColor(Color.RED);
marker.setColor(Color.RED);
} else if (entryNumber % 4 == 2) {
nameLabel.setColor(Color.MAGENTA);
marker.setColor(Color.MAGENTA);
} else if (entryNumber % 4 == 3) {
nameLabel.setColor(Color.BLACK);
marker.setColor(Color.BLACK);
}
add(nameLabel);
add(marker);
}
}
private void startFall() {
ball.move(vx, vy);
pause(DELAY);
ball.sendToBack();
}
/** Check for collision */
private void checkRebounce() {
// check for left/right/top wall
if (ball.getX() < 0) {
vx *= -1;
ball.move(vx, 0);
return;
} else if ((ball.getX() + 2 * BALL_RADIUS) > getWidth()) {
vx *= -1;
ball.move(vx, 0);
return;
} else if (ball.getY() < 0) {
ball.setLocation(ball.getX(), -ball.getY());
vy *= -1;
return;
}
// check for collision with bricks: from the four vertexs
lefttop = getElementAt(ball.getX(), ball.getY());
righttop = getElementAt(ball.getX() + 2 * BALL_RADIUS, ball.getY());
leftbottom = getElementAt(ball.getX(), ball.getY() + 2 * BALL_RADIUS);
rightbottom = getElementAt(ball.getX() + 2 * BALL_RADIUS, ball.getY() + 2 * BALL_RADIUS);
if ((lefttop != null) && (righttop != null) && (lefttop != board) && (lefttop != mylabel)) {
remove(lefttop);
num_brick_left--;
vy *= -1;
} else if ((righttop != null)
&& (rightbottom != null)
&& (righttop != board)
&& (righttop != mylabel)) {
remove(righttop);
num_brick_left--;
vx *= -1;
} else if ((rightbottom != null)
&& (leftbottom != null)
&& (rightbottom != board)
&& (rightbottom != mylabel)) {
remove(rightbottom);
num_brick_left--;
vy *= -1;
} else if ((leftbottom != null)
&& (lefttop != null)
&& (leftbottom != board)
&& (leftbottom != mylabel)) {
remove(leftbottom);
num_brick_left--;
vx *= -1;
}
// check for collision with board
if (getElementAt(ball.getX(), (ball.getY() + BALL_RADIUS / 2)) == board) {
vy *= -1;
ball.move(0, vy);
}
}
/** Move the ball */
private void moveBall() {
ball.move(vx, vy);
}
/** Check whether the game is over */
private boolean gameover() {
return (ball.getY() > (getHeight() - 2 * BALL_RADIUS)) || (num_brick_left == 0);
}
/*Defines and places the Rent state as a circle */
private void placeRent(int x, int y, int width, int height, Color rentColor) {
GOval shape = new GOval(x, y, width, height);
shape.setFilled(true);
shape.setColor(rentColor);
add(shape);
}