// TODO: Add functionality for Spacebar to start/pause game.
void BreakoutCanvas::keyPressEvent(QKeyEvent* event){
if(event->key() == Qt::Key_Left) {
paddleLeft = true;
}
if(event->key() == Qt::Key_Right) {
paddleRight = true;
}
if(event->key() == Qt::Key_Space) {
if (state == PLAYING) {
timer->stop();
state = PAUSED;
needsButtonChange("Resume");
} else if (state == PAUSED) {
timer->start();
state = PLAYING;
needsButtonChange("Pause");
} else if (state == AFTER_PLAY) {
reset();
needsButtonChange("Start");
} else if (state == BEFORE_PLAY) {
timer->start();
state = PLAYING;
needsButtonChange("Pause");
}
}
if(event->key() == Qt::Key_Q) {
exit(0);
}
}
void BreakoutCanvas::buttonPress() {
switch(state) {
case BEFORE_PLAY:
timer->start();
needsButtonChange("Pause");
// needsStatusChange(TOTAL_BRICKS);
state = PLAYING;
break;
case PLAYING:
timer->stop();
needsButtonChange("Resume");
// needsStatusChange(remainingBricks);
state = PAUSED;
break;
case PAUSED:
timer->start();
needsButtonChange("Pause");
// needsStatusChange(remainingBricks);
state = PLAYING;
break;
case AFTER_PLAY:
reset();
needsButtonChange("Start");
// needsStatusChange(remainingBricks);
state = BEFORE_PLAY;
break;
}
setFocus(Qt::OtherFocusReason); // make sure that the canvas gets keystrokes
}
void BreakoutCanvas::buttonPress()
{
switch(state)
{
case BEFORE_PLAY:
timer->start();
needsButtonChange("Pause");
state = PLAYING;
break;
case PLAYING:
timer->stop();
needsButtonChange("Resume");
state = PAUSED;
break;
case PAUSED:
timer->start();
needsButtonChange("Pause");
state = PLAYING;
break;
case LOSS:
reset();
needsButtonChange("Start");
state = BEFORE_PLAY;
break;
case WIN:
reset();
needsButtonChange("Start");
state = BEFORE_PLAY;
break;
}
setFocus(Qt::OtherFocusReason); // make sure that the canvas gets keystrokes
}
void BreakoutCanvas::timerTicked()
{
// this will get called every 50 milliseconds
// first, move the ball:
if(goingRight)
{
ball.rx()++;
}
else
{
ball.rx()--;
}
if(goingDown)
{
ball.ry()++;
}
else
{
ball.ry()--;
}
// should the ball bounce?
if(ball.x() + BALL_RADIUS >= WIDTH)
{
goingRight = false;
}
if(ball.x() - BALL_RADIUS <= 0)
{
goingRight = true;
}
if(ball.y() - BALL_RADIUS <= 0)
{
goingDown = true;
}
// ball bounces off and breaking blocks
for(int i = 0; i < 10; i++)
{
if(ball.y() - BALL_RADIUS <= PADDLE_HEIGHT &&
ball.x() >= blocks[i] &&
ball.x() <= blocks [i] + BLOCK_WIDTH &&
destroyed[i] == false)
{
goingDown = true;
destroyed[i] = true;
}
}
// but the player's paddle might not be -- check
if(ball.y() + BALL_RADIUS >= HEIGHT - PADDLE_HEIGHT &&
ball.x() >= playerX &&
ball.x() <= playerX + PADDLE_WIDTH)
{
goingDown = false;
}
// move the computer's paddle:
/*
compX = ball.x() - PADDLE_WIDTH / 2;
if(compX <= 0)
{
compX = 0;
}
if(compX + PADDLE_WIDTH >= WIDTH)
{
compX = WIDTH - PADDLE_WIDTH;
}*/
// move the player's paddle:
if(paddleLeft)
{
playerX--;
}
if(paddleRight)
{
playerX++;
}
if(playerX <= 0)
{
playerX = 0;
}
if(playerX + PADDLE_WIDTH >= WIDTH)
{
playerX = WIDTH - PADDLE_WIDTH;
}
// did the player lose?
if(ball.y() >= HEIGHT)
{
timer->stop();
state = LOSS;
needsButtonChange("Restart");
}
// did the player win?
bool win = true;
for( int i = 0; i < 10; i++)
{
if(destroyed[i] == false)
win = false;
}
if( win == true)
{
timer->stop();
state = WIN;
needsButtonChange("Restart");
}
update(); // force a redraw
}
// TODO: Add functionality for removing bricks when ball bounces.
// TODO: Change end game check to include win for all bricks gone.
void BreakoutCanvas::timerTicked() {
// this will get called every 50 milliseconds
// first, move the ball:
if(goingRight) {
ball.rx()++;
} else {
ball.rx()--;
}
if(goingDown) {
ball.ry()++;
} else {
ball.ry()--;
}
// should the ball bounce?
if(ball.x() + BALL_RADIUS >= WIDTH) {
goingRight = false;
}
if(ball.x() - BALL_RADIUS <= 0) {
goingRight = true;
}
// the computer paddle is always in the right spot
if(ball.y() - BALL_RADIUS <= PADDLE_HEIGHT) {
goingDown = true;
}
// but the player's paddle might not be -- check
if(ball.y() + BALL_RADIUS >= HEIGHT - PADDLE_HEIGHT &&
ball.x() >= playerX &&
ball.x() <= playerX + PADDLE_WIDTH) {
goingDown = false;
}
// move the computer's paddle:
compX = ball.x() - PADDLE_WIDTH / 2;
if(compX <= 0) {
compX = 0;
}
if(compX + PADDLE_WIDTH >= WIDTH) {
compX = WIDTH - PADDLE_WIDTH;
}
// move the player's paddle:
if(paddleLeft) {
playerX--;
}
if(paddleRight) {
playerX++;
}
if(playerX <= 0) {
playerX = 0;
}
if(playerX + PADDLE_WIDTH >= WIDTH) {
playerX = WIDTH - PADDLE_WIDTH;
}
// did the player lose?
if(ball.y() >= HEIGHT) {
timer->stop();
state = AFTER_PLAY;
needsButtonChange("Restart");
}
update(); // force a redraw
}
