def walk(self): """Randomly move up, down, left, right or stay in one place.""" # NOTE: pyprocessing perlin noise functionality appears to be glitchy # (it freezes at exactly 0 for a series of steps) self.location[0] = p.map(p.noise(self.noff[0]), -1, 1, 0, width) self.location[1] = p.map(p.noise(self.noff[1]), -1, 1, 0, height) self.noff += 0.01
def __init__(self, x, y):
self.x = x
self.y = y
self.n = random.randint(3, 30)
self.radius = random.randint(10, 100)
self.size = random.randint(3, 15)
self.colour = random.choice(COLOURS)
self.angle = random.random() * 2 * math.pi
self.speed = p.map(self.radius, 10, 100, 0.03, 0.01)
# randomise direction of rotation
if random.random() > 0.5:
self.speed *= -1
