Mercurial > py-sdl2
changeset 157:3beff16eecd2
- fixed issue #43: improve the code reference for the improved bouncing section
| author | Marcus von Appen <marcus@sysfault.org> |
|---|---|
| date | Mon, 17 Feb 2014 08:10:50 +0100 |
| parents | 4c39eaa64df7 |
| children | e68f5ca12c69 |
| files | doc/tutorial/pong.rst |
| diffstat | 1 files changed, 12 insertions(+), 6 deletions(-) [+] |
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--- a/doc/tutorial/pong.rst Mon Feb 17 08:06:23 2014 +0100 +++ b/doc/tutorial/pong.rst Mon Feb 17 08:10:50 2014 +0100 @@ -445,13 +445,19 @@ This means that we just need to invert the vertical velocity, once the ball hits the top or bottom. :: - if self.ball.sprite.y <= self.miny or \ - self.ball.sprite.y + self.ball.sprite.size[1] >= self.maxy: - self.ball.velocity.vy = - self.ball.velocity.vy + class CollisionSystem(sdl2ext.Applicator): + [...] + + def process(self, world, componentsets): + [...] - if self.ball.sprite.x <= self.minx or \ - self.ball.sprite.x + self.ball.sprite.size[0] >= self.maxx: - self.ball.velocity.vx = - self.ball.velocity.vx + if self.ball.sprite.y <= self.miny or \ + self.ball.sprite.y + self.ball.sprite.size[1] >= self.maxy: + self.ball.velocity.vy = - self.ball.velocity.vy + + if self.ball.sprite.x <= self.minx or \ + self.ball.sprite.x + self.ball.sprite.size[0] >= self.maxx: + self.ball.velocity.vx = - self.ball.velocity.vx Creating an enemy -----------------