void GameSession::commitSuicide() {
SoundPlayer::playSuicide();
while (_remainingTime > 0) {
_remainingTime -= 4;
_hud.drawTimerBar(_remainingTime);
Hardware::waitForVBlank();
}
decreaseLives();
if (_lives > 0) {
startLevel();
render();
} else {
_isRunning = false;
_isGameOver = true;
}
}
// This function does boundary checking on the ball, also determines where
// it hits the paddle, and changes the behavior of the ball depending.
void checkBallCollisions(int paddlePos)
{
// first check for any brick collisions
char detected = drawBricks(&ball);
// if no bricks hit, continue with normal collision detection
if(detected == 'n')
{
// right wall
if(ball.x >= SCREEN_WIDTH - BALL_RADIUS)
{
ball.x = SCREEN_WIDTH - (BALL_RADIUS + 1);
xdir = -xdir;
playTone(500, 50);
return;
}
// left wall
if(ball.x <= BALL_RADIUS)
{
ball.x = BALL_RADIUS + 1;
xdir = -xdir;
playTone(500, 50);
return;
}
// ceiling
if(ball.y >= SCREEN_HEIGHT - BALL_RADIUS)
{
ydir = -1.0;
playTone(500, 50);
return;
}
// middle of paddle
if(ball.y <= 19 && (ball.x <= paddlePos + (PADDLE_WIDTH / 2) + (BALL_RADIUS + 1) &&
ball.x >= paddlePos + (PADDLE_WIDTH / 2) - (BALL_RADIUS + 1)))
{
paddleHits++;
// increase ball speed slightly with every 6 paddle hits
if((paddleHits % 18 == 0) && (paddleHits <= 36))
speed += 1.0;
ball.y = 20;
ydir = 1.0;
playTone(500,50);
return;
}
// right side of paddle
else if(ball.y <= 19 && ((ball.x <= paddlePos + PADDLE_WIDTH) &&
(ball.x > paddlePos + (PADDLE_WIDTH / 2) + (BALL_RADIUS + 1))))
{
paddleHits++;
// increase ball speed slightly with every 6 paddle hits
if((paddleHits % 18 == 0) && (paddleHits <= 36))
speed += 1.0;
ball.y = 20;
ydir = 1.0;
xdir += 1.0;
playTone(500, 50);
return;
}
// left side of paddle
else if(ball.y <= 19 && ((ball.x >= paddlePos) &&
(ball.x < paddlePos + (PADDLE_WIDTH / 2) - (BALL_RADIUS + 1))))
{
paddleHits++;
// increase ball speed slightly with every 6 paddle hits
if((paddleHits % 18 == 0) && (paddleHits <= 36))
speed += 1.0;
ball.y = 20;
ydir = 1.0;
xdir -= 1.0;
playTone(500, 50);
return;
}
// ball hits floor, lives lost, score deducted
if(ball.y <= 10 && ((ball.x < paddlePos) || (ball.x > paddlePos + PADDLE_WIDTH)))
{
playTone(50,500);
tft.fillCircle(ball.y, ball.x, BALL_RADIUS, ST7735_BLACK);
drawPaddle();
initializeBall(getDifficulty());
decreaseLives();
displayStats();
delay(20);
}
}
// brick collision detected, adjust ball accordingly
else
{
// corner of brick hit
if(detected == 'c')
{
xdir = -xdir;
ydir = -ydir;
playTone(200,50);
return;
}
else
{
// left/right side of brick hit
if(detected == 'x')
{
xdir = -xdir;
playTone(200,50);
return;
}
// top/bottom of brick hit
else if(detected == 'y')
{
ydir = -ydir;
playTone(200,50);
return;
}
}
}
}
