sprite_period = 0.2
sprite_steps = sprite_period / period
step = 0
sprites = cycle([LEDSprite("ball%d.txt" % i) for i in range(4)])
sprite = sprites.next()
while True:
# Draw the ball
led.erase()
led.sprite(sprite, (int(x), int(y)))
led.show()
# Change to next sprite, once every sprite_steps
step += 1
if step % sprite_steps == 0:
sprite = sprites.next()
# Gravity
xangle, yangle, zangle = accel.get_angle()
xdist += xangle / 90
ydist += yangle / 90
# Move the point to a new position. If it hits a wall, reverse the
# direction of the ball.
x, y = (x + xdist, y + ydist)
if x >= (led.width() - (sprite.width() - 1)) or x < 0:
xdist = -xdist * 0.99
if y >= (led.height() - (sprite.height() - 1)) or y < 0:
ydist = -ydist * 0.99
time.sleep(period)
sprite_steps = sprite_period/period
step = 0
sprites = cycle([LEDSprite("ball%d.txt" % i) for i in range(4)])
sprite = sprites.next()
while True:
# Draw the ball
led.erase()
led.sprite(sprite, (int(x), int(y)))
led.show()
# Change to next sprite, once every sprite_steps
step += 1
if step % sprite_steps == 0:
sprite = sprites.next()
# Gravity
xangle, yangle, zangle = accel.get_angle()
xdist += xangle/90
ydist += yangle/90
# Move the point to a new position. If it hits a wall, reverse the
# direction of the ball.
x, y = (x+xdist, y+ydist)
if x >= (led.width() - (sprite.width() - 1)) or x < 0:
xdist = - xdist * 0.99
if y >= (led.height() - (sprite.height() - 1)) or y < 0:
ydist = - ydist * 0.99
time.sleep(period)
led.point(int(self.x), int(self.y))
def move(self, angle=None):
# Gravity
if angle:
xangle, yangle, zangle = angle
self.xdist += self.xangle/90
self.ydist += self.yangle/90
# Move the point to a new position. If it hits a wall, reverse the
# direction of the ball.
self.x, self.y = (self.x+self.xdist, self.y+self.ydist)
if self.x >= led.width() or self.x < 0:
self.xdist = - self.xdist
if self.y >= led.height() or self.y < 0:
self.ydist = - self.ydist
ball = Ball()
while True:
# Draw the ball
led.erase()
ball.draw()
led.show()
# Move it (in the presense of gravity)
ball.move(accel.get_angle())
time.sleep(period)
def draw(self):
led.point(int(self.x), int(self.y))
def move(self, angle=None):
# Gravity
if angle:
xangle, yangle, zangle = angle
self.xdist += self.xangle / 90
self.ydist += self.yangle / 90
# Move the point to a new position. If it hits a wall, reverse the
# direction of the ball.
self.x, self.y = (self.x + self.xdist, self.y + self.ydist)
if self.x >= led.width() or self.x < 0:
self.xdist = -self.xdist
if self.y >= led.height() or self.y < 0:
self.ydist = -self.ydist
ball = Ball()
while True:
# Draw the ball
led.erase()
ball.draw()
led.show()
# Move it (in the presense of gravity)
ball.move(accel.get_angle())
time.sleep(period)
