RGBCube/serenity
1
Fork 0
mirror of https://github.com/RGBCube/serenity synced 2025-07-25 19:47:44 +00:00
Code Issues Activity Actions

Breakout: Improve collision response between ball and paddle

Browse source 
When the ball hits the side of the paddle, it would get stuck because
the paddle moves faster than the ball. This commit forces the post-
collision vertical velocity of the ball to be going up and makes sure
that new ball's y-position is higher than in the previous frame.
This commit is contained in:
Damien Firmenich 2021-09-10 16:59:33 +02:00 • committed by Andreas Kling
parent d0245b5e6b
commit 61f573fa67
1 changed files with 4 additions and 2 deletions
Download patch file Download diff file Expand all files Collapse all files

6
Userland/Games/Breakout/Game.cpp
View file

@ -266,8 +266,10 @@ void Game::tick()
update(enclosing_int_rect(new_ball.rect()));
if (new_ball.rect().intersects(m_paddle.rect)) {
new_ball.position.set_y(m_ball.y());
new_ball.velocity.set_y(new_ball.velocity.y() * -1);
if (m_ball.y() < new_ball.y()) {
new_ball.position.set_y(m_ball.y());
}
new_ball.velocity.set_y(fabs(new_ball.velocity.y()) * -1);
float distance_to_middle_of_paddle = new_ball.x() - m_paddle.rect.center().x();
float relative_impact_point = distance_to_middle_of_paddle / m_paddle.rect.width();