trying to get the ball to move along the y coordinate, it wont work, more explanation at bottom
from livewires import games, color
games.init(screen_width = 640, screen_height = 480, fps = 50)
points = games.Text(value = 0, size = 25, color = color.green,
bottom = games.screen.height - 5, left = 10)
games.screen.add(points)
class Paddle(games.Sprite):
image = games.load_image("paddle.bmp")
def __init__(self):
super(Paddle, self).__init__(image = Paddle.image, y = games.mouse.y, right = games.screen.width)
def update(self):
""" Move to mouse x position. """
self.y = games.mouse.y
if self.top < 0:
self.top = 0
if self.bottom > games.screen.height:
self.bottom = games.screen.height
self.check_bounce()
def check_bounce(self):
for bouncingBall in self.overlapping_sprites:
bouncingBall.handle_bounce()
class BouncingBall(games.Sprite):
image = games.load_image("ball.bmp")
def __init__(self, x, y, dx, dy):
super(BouncingBall, self).__init__(image = BouncingBall.image, x = x, y = y, dx = dx, dy = dy)
def update(self):
""" Check if bottom edge has reached screen bottom. """
if self.top > 0 or self.bottom < games.screen.height:
self.dy = -self.dy
if self.left < 0:
self.dx = -self.dx
if self.right > games.screen.width:
self.end_game()
def handle_bounce(self):
global points
points.value += 10
points.left = 10
self.dx = -self.dx
def end_game(self):
end_message = games.Message(value = "GAME OVER",
size = 90,
color = color.red,
x = games.screen.width/2,
y = games.screen.height/2,
lifetime = 10 * games.screen.fps,
after_death = games.screen.quit)
games.screen.add(end_message)
def main():
background_image = games.load_image("background.png", transparent = False)
games.screen.background = background_image
the_paddle = Paddle()
games.screen.add(the_paddle)
games.mouse.is_visible = False
new_ball = BouncingBall(x = games.screen.width/2, y = games.screen.height/2, dx = 2, dy = 2) #<-believe it is right here im messing up
games.screen.add(new_ball)
games.screen.mainloop()
main()
I am having a horrible time at getting my ball to correctly follow the y coordinate, I believe I am doing it wrong when i create instance new_ball, (main function) but i have no idea lol, anyone see what im doing wrong?
Make sure that this line
if self.top > 0 or self.bottom < games.screen.height:
self.dy = -self.dy
Isn't constantly evaluating to True. If so, your y-velocity will constantly toggle and the ball will never appear to change y coordinate.