@Override
public void update(float pDeltaTime) {
mGame.getInput().getMouseEvents();
mGame.getInput().getKeyEvents();
int len = mBalls.size();
for (int i = 0; i < len; i++) {
Ball firstBall = mBalls.get(i);
for (int j = 0; j < len; j++) {
Ball secondBall = mBalls.get(i);
if (secondBall == firstBall
|| !OverlapTester.overlapCircles(firstBall.bounds, secondBall.bounds)) {
continue;
}
System.out.println("overlap");
float newVelocityX1 =
(firstBall.velocity.x * (firstBall.mass - secondBall.mass)
+ (2 * secondBall.velocity.x * secondBall.mass))
/ (firstBall.mass + secondBall.mass);
float newVelocityY1 =
(firstBall.velocity.y * (firstBall.mass - secondBall.mass)
+ (2 * secondBall.velocity.y * secondBall.mass))
/ (firstBall.mass + secondBall.mass);
float newVelocityX2 =
(secondBall.velocity.x * (secondBall.mass - firstBall.mass)
+ (2 * firstBall.velocity.x * firstBall.mass))
/ (firstBall.mass + secondBall.mass);
float newVelocityY2 =
(secondBall.velocity.y * (secondBall.mass - firstBall.mass)
+ (2 * firstBall.velocity.y * firstBall.mass))
/ (firstBall.mass + secondBall.mass);
firstBall.velocity.add(newVelocityX1, newVelocityY1);
secondBall.velocity.add(newVelocityX2, newVelocityY2);
}
// firstBall.velocity.add(mGravity.x * pDeltaTime, mGravity.y * pDeltaTime);
firstBall.update(pDeltaTime);
if (firstBall.getX() < firstBall.getWidth() / 2) {
firstBall.setX(firstBall.getWidth() / 2);
firstBall.velocity.x *= -1;
}
if (firstBall.getX() > mWidth - firstBall.getWidth() / 2) {
firstBall.setX(mWidth - firstBall.getWidth() / 2);
firstBall.velocity.x *= -1;
}
if (firstBall.getY() < firstBall.getWidth() / 2) {
firstBall.setY(firstBall.getWidth() / 2);
firstBall.velocity.y *= -1;
}
if (firstBall.getY() > mHeight - firstBall.getHeight() / 2) {
firstBall.setY(mHeight - firstBall.getHeight() / 2);
firstBall.velocity.y *= -1;
}
}
}
public boolean collidesWith(Ball ball) {
boolean hasEnteredIf = false;
if (ball.getX() - ball.getRadius() <= this.x1 || ball.getX() + ball.getRadius() >= this.x2) {
ball.reflectHorizontal();
hasEnteredIf = true;
}
if (ball.getY() - ball.getRadius() <= this.y1 || ball.getY() + ball.getRadius() >= this.y2) {
ball.reflectVertical();
hasEnteredIf = true;
}
return hasEnteredIf;
}
@Override
protected void paintComponent(Graphics g) {
super.paintComponent(g);
Graphics2D graphics = (Graphics2D) g;
graphics.setPaint(Color.GREEN);
Ellipse2D.Double circle =
new Ellipse2D.Double(ball.getX(), ball.getY(), ball.getDiameter(), ball.getDiameter());
// graphics.fillOval(ball.getX(), ball.getY(), ball.getDiameter(), ball.getDiameter());
graphics.fill(circle);
if (frame.getWidth() != frameWidth || frame.getHeight() != frameHeight) {
repaint();
updateSizes(frame.getWidth(), frame.getHeight());
}
try {
Thread.sleep(7);
} catch (InterruptedException e) {
}
if (begin && !grabBall) {
moveBall();
} else if (grabBall) {
followMouse();
}
}
public boolean isOver(Ball ball) {
double rX = Math.pow(ball.getX() - x, 2);
double rY = Math.pow(ball.getY() - y, 2);
double rR = Math.pow(radius - ball.radius, 2);
ballOver = (rX + rY) <= rR;
return ballOver;
}
@Override
public void paint(Graphics g) {
super.paint(g);
for (Ball b : ballsList) {
g.setColor(b.getColor());
g.fillOval(b.getX(), b.getY(), b.getSize(), b.getSize());
b.move(getWidth(), getHeight());
}
}
private void logic(int delta) {
ball.update(delta);
bat.update(delta);
if (ball.getX() <= bat.getX() + bat.getWidth()
&& ball.getX() >= bat.getX()
&& ball.getY() >= bat.getY()
&& ball.getY() <= bat.getY() + bat.getHeight()) {
ball.setDX(0.3);
}
}
public boolean attack(Ball ball) {
int angle = this.calculateAngle(this.getX(), this.getY(), ball.getX(), ball.getY());
GameInfo.currentMap[this.getY() / Config.slotHeight][this.getX() / Config.slotWidth] =
this.getMapID() + angle;
GameManager gameManager = GameManager.getInstance();
int id = BallCache.generateBallID();
gameManager.addBall(this.getBulletName(), this.getX(), this.getY(), ball, id);
SendWrapper.sendBallAction(this, "TOWERATTACK");
return true;
}
private void saveBalls(Board board) {
List<Ball> balls = board.getBalls();
for (Ball ball : balls) {
fileOutput.format(
BALL_FORMAT,
giveName(ball),
ball.getX(),
ball.getY(),
ball.getXVelocity(),
ball.getYVelocity());
}
}
public void moveBall() {
if (moveRight == true) {
if (ball.getX() < frameWidth - ball.getDiameter()) {
ball.setX(ball.getX() + 1);
if (moveDown == true) {
if (ball.getY() < this.getWidth() - ball.getDiameter()) {
ball.setY(ball.getY() + 1);
} else {
moveDown = false;
}
} else {
if (ball.getY() >= 0) {
ball.setY(ball.getY() - 1);
} else {
moveDown = true;
}
}
} else {
moveRight = false;
}
} else {
if (ball.getX() >= 0) {
ball.setX(ball.getX() - 1);
if (moveDown == true) {
if (ball.getY() < this.getWidth() - ball.getDiameter()) {
ball.setY(ball.getY() + 1);
} else {
moveDown = false;
}
} else {
if (ball.getY() >= 0) {
ball.setY(ball.getY() - 1);
} else {
moveDown = true;
}
}
} else {
moveRight = true;
}
}
repaint();
}
@Override
public void paintComponent(Graphics g) {
super.paintComponent(g);
Graphics2D g2 = (Graphics2D) g;
// paint ball, paddle, and brick configuration
g2.drawImage(background.getImage(), 0, 0, null);
bconfig.paint(g2);
paddle.paint(g2);
ball.paint(g2);
g2.setColor(Color.WHITE);
g2.setFont(new Font("Serif", Font.PLAIN, 20));
g2.drawString("Score: " + score, 15, 20);
if (ball.getY() > 500) {
g2.setColor(Color.WHITE);
g2.setFont(new Font("Serif", Font.PLAIN, 30));
g2.drawString("Game Over!", 200, 300);
g2.drawString("Your final score was " + score, 150, 330);
timer.stop();
}
}
/**
* Determines if the given ball has collided with the paddle and returns true if it has and false
* if it has not. If the ball has collided with the paddle the balls movement vectors are modified
* so the ball will bounce back at the proper angle.
*
* @param ball is the ball to examine to see if it has collided with the paddle
* @return Returns true if ball collides with paddle and if so updates vectors
*/
public boolean collision(Ball ball) {
// Temp variables for paddle corner coordinates;
int pX1 = this.x;
int pX2 = pX1 + this.width - 1;
int pY1 = this.y;
int pY2 = pY1 + this.height - 1;
// Temp variables for ball coordinates, movement vectors, and radius
int bX = ball.getX();
int bY = ball.getY();
int vX = ball.getXVector();
int vY = ball.getYVector();
int bRad = ball.getRadius();
// Testing for collisions with the paddle edges and the Ball
if (bX < pX1 && bY >= pY1 && bY <= pY2 && vX > 0) // left edge
{
if (bX + bRad > pX1) // will collide with edge
{
ball.setX(pX1 - bRad);
ball.setXVector(-Math.abs(vX)); // Change x direction
return true;
}
} else if (bX > pX2 && bY >= pY1 && bY <= pY2 && vX < 0) // right edge
{
if (bX - bRad < pX2) // will collide with edge
{
ball.setX(pX2 + bRad);
ball.setXVector(Math.abs(vX)); // Change x direction
return true;
}
} else if (bY < pY1 && bX >= pX1 && bX <= pX2 && vY > 0) // top edge
{
if (bY + bRad > pY1) // will collide with edge
{
ball.setY(pY1 - bRad);
ball.setYVector(-Math.abs(vY)); // Change y direction
return true;
}
} else if (bY > pY2 && bX >= pX1 && bX <= pX2 && vY < 0) // bottom edge
{
if (bY - bRad < pY2) // will collide with edge
{
ball.setY(pY2 + bRad);
ball.setYVector(Math.abs(vY)); // Change y direction
return true;
}
} else // Otherwise test to see if the ball hits a corner of the paddle
{
if (ball.distance(pX1, pY1) <= bRad
&& ball.distance(pX1, pY1) <= ball.distance(pX2, pY1)) { // top-left corner collision
if (Math.abs(pX1 - bX) >= Math.abs(pY1 - bY)) if (vX > 0) ball.setXVector(-vX);
if (Math.abs(pX1 - bX) <= Math.abs(pY1 - bY)) if (vY > 0) ball.setYVector(-vY);
return true;
} else if (ball.distance(pX2, pY1) <= bRad) { // top-right corner collision
if (Math.abs(pX2 - bX) >= Math.abs(pY1 - bY)) if (vX < 0) ball.setXVector(-vX);
if (Math.abs(pX2 - bX) <= Math.abs(pY1 - bY)) if (vY > 0) ball.setYVector(-vY);
return true;
} else if (ball.distance(pX2, pY2) <= bRad
&& ball.distance(pX2, pY2) <= ball.distance(pX1, pY2)) { // bottom-right corner collision
if (Math.abs(pX2 - bX) >= Math.abs(pY2 - bY)) if (vX < 0) ball.setXVector(-vX);
if (Math.abs(pX2 - bX) <= Math.abs(pY2 - bY)) if (vY < 0) ball.setYVector(-vY);
return true;
} else if (ball.distance(pX1, pY2) <= bRad) { // bottom-left corner collision
if (Math.abs(pX1 - bX) >= Math.abs(pY2 - bY)) if (vX > 0) ball.setXVector(-vX);
if (Math.abs(pX1 - bX) <= Math.abs(pY2 - bY)) if (vY < 0) ball.setYVector(-vY);
return true;
}
}
return false;
}
