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Improved bouncing balls demo 

Keep the bouncing balls in the court and gives balls a speed in proportion to their size. Created from code in #63

Co-authored-by: Mark Emery <mark@markemerylimited.co.uk>
This commit is contained in:
Phil Howard 2021-02-23 12:43:02 +00:00
parent 890524ae9e
commit e17aa01f5d
1 changed files with 18 additions and 11 deletions
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29
micropython/examples/pico_display/demo.py
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@ -22,32 +22,39 @@ class Ball:
# initialise shapes
balls = []
for i in range(0, 100):
r = random.randint(0, 10) + 3
balls.append(
Ball(
random.randint(0, width),
random.randint(0, height),
random.randint(0, 10) + 3,
random.randint(0, 255) / 128,
random.randint(0, 255) / 128,
random.randint(r, r + (width - 2 * r)),
random.randint(r, r + (height - 2 * r)),
r,
(14 - r) / 2,
(14 - r) / 2,
display.create_pen(random.randint(0, 255), random.randint(0, 255), random.randint(0, 255)),
)
)
while True:
display.set_pen(120, 40, 60)
display.set_pen(40, 40, 40)
display.clear()
for ball in balls:
for ball in balls:
ball.x += ball.dx
ball.y += ball.dy
if ball.x < 0 or ball.x > width:
xmax = width - ball.r
xmin = ball.r
ymax = height - ball.r
ymin = ball.r
if ball.x < xmin or ball.x > xmax:
ball.dx *= -1
if ball.y < 0 or ball.y > height:
if ball.y < ymin or ball.y > ymax:
ball.dy *= -1
display.set_pen(ball.pen)
display.circle(int(ball.x), int(ball.y), int(ball.r))
display.update()
time.sleep(0.01)
time.sleep(0.01)