NameError: name 'random' is not defined
이렇게 오류가 뜨는데 어떤것을 더 추가해야 할까요?
class Cell():
def __init__(self, x=None, y=None, v=5, sensing_dist=50):
if x is None and y is None:
r = random(0, 1)
if r < 0.25: # top
self.x = random(50, W - 50)
self.y = random(50, 100)
elif r < 0.5: # bottom
self.x = random(50, W - 50)
self.y = random(H - 100, H - 50)
elif r < 0.75: # right
self.x = random(W - 100, W - 50)
self.y = random(50, H - 50)
else: # left
self.x = random(50, 100)
self.y = random(50, H - 50)
else:
self.x = x
self.y = y
# gene
self.v = v
self.sensing_dist = sensing_dist
self.status = 'stopped' # (stopped, moving, staying)
self.staying_time = 0
self.n_foods = 0
def move_to(self, dst_x, dst_y):
dist = sqrt((dst_x - self.x) ** 2 + (dst_y - self.y) ** 2)
if dist < self.v:
self.x = dst_x
self.y = dst_y
else:
dist_x = (dst_x - self.x) * self.v
dist_y = (dst_y - self.y) * self.v
self.x += dist_x / dist
self.y += dist_y / dist
def move(self):
if self.status == 'moving':
dist = sqrt((self.dst_x - self.x) ** 2 + (self.dst_y - self.y) ** 2)
if dist < self.v:
self.x = self.dst_x
self.y = self.dst_y
self.status = 'stopped'
else:
dist_x = (self.dst_x - self.x) * self.v
dist_y = (self.dst_y - self.y) * self.v
self.x += dist_x / dist
self.y += dist_y / dist
def decide_status(self):
if self.status == 'stopped':
r = random(0, 1)
if r < 0.9:
self.status = 'moving'
self.dst_x = random(50, W - 50)
self.dst_y = random(50, H - 50)
else:
self.status = 'staying'
self.staying_time = millis() + int(random(500, 1500))
elif self.status == 'staying':
if millis() > self.staying_time:
self.status = 'stopped'
def check_collision(self):
for food in foods:
if food.status == 'eaten':
continue
dist = sqrt((food.x - self.x) ** 2 + (food.y - self.y) ** 2)
if dist <= self.sensing_dist:
self.status = 'moving'
self.dst_x = food.x
self.dst_y = food.y
if dist < 30:
food.status = 'eaten'
self.n_foods += 1
manager.alive_foods -= 1
break
def evolve(self):
if random(0, 1) < 0.5:
if random(0, 1) < 0.5:
self.v += 1
else:
self.sensing_dist += 10
else:
if random(0, 1) < 0.5:
self.v -= 1
else:
self.sensing_dist -= 10
def display(self):
stroke(255)
ellipseMode(CENTER)
noFill()
ellipse(self.x, self.y, self.sensing_dist * 2, self.sensing_dist * 2)
noStroke()
ellipseMode(CENTER)
fill(255, 255, 0)
ellipse(self.x, self.y, 50, 50)
fill(0)
textSize(20)
textAlign(CENTER)
text('%d' % (self.v), self.x, self.y)
class Food():
def __init__(self, x, y):
self.x = x
self.y = y
self.status = 'alive'
def display(self):
if self.status != 'eaten':
shapeMode(CENTER)
fill(0, 240, 100)
triangle(self.x, self.y - 10, self.x - 10, self.y + 10, self.x + 10, self.y + 10)
class Manager():
def __init__(self):
self.alive_cells = N_CELLS
self.alive_foods = N_FOODS
self.generation = 0
self.avg_speed = 5
self.avg_sensing_dist = 50
def reset(self):
global foods, cells, N_FOODS
self.generation += 1
N_FOODS -= 1
self.alive_foods = N_FOODS
foods = []
for i in range(N_FOODS):
foods.append(Food(x=random(200, W - 200), y=random(200, H - 200)))
if manager.generation > 1:
new_cells = []
for i, cell in enumerate(reversed(cells)):
if cell.n_foods == 0: # dead
del cells[self.alive_cells - i - 1]
continue
if cell.n_foods >= 2: # replicate
new_cells.append(Cell(
v=cell.v,
sensing_dist=cell.sensing_dist
))
if cell.n_foods >= 1:
cell.evolve()
cell.n_foods = 0
r = random(0, 1)
if r < 0.25:
cell.x = random(50, W - 50)
cell.y = random(50, 100)
elif r < 0.5:
cell.x = random(50, W - 50)
cell.y = random(H - 100, H - 50)
elif r < 0.75:
cell.x = random(W - 100, W - 50)
cell.y = random(50, H - 50)
else:
cell.x = random(50, 100)
cell.y = random(50, H - 50)
cells.extend(new_cells)
self.alive_cells = len(cells)
else:
for i in range(N_CELLS):
cells.append(Cell())
self.compute_avgs()
def compute_avgs(self):
sum_speed = 0
sum_sensing_dist = 0
for cell in cells:
sum_speed += cell.v
sum_sensing_dist += cell.sensing_dist
if len(cells):
self.avg_speed = float(sum_speed) / float(len(cells))
self.avg_sensing_dist = float(sum_sensing_dist) / float(len(cells))
# main
N_FOODS = 20
N_CELLS = 20
W, H = 1920, 1080
manager = Manager()
foods, cells = [], []
manager.reset()
def setup():
frameRate(60)
size(W, H)
def draw():
background(127)
fill(255)
textAlign(LEFT)
textSize(24)
text('Generation %d' % manager.generation, 20, 30)
text('Cells %d' % manager.alive_cells, 20, 60)
text('Avg. Speed %.2f' % manager.avg_speed, 20, 90)
text('Avg. Sensing Dist %.2f' % manager.avg_sensing_dist, 20, 120)
if manager.alive_foods == 0:
manager.reset()
for food in foods:
food.display()
for cell in cells:
cell.decide_status()
cell.move()
cell.check_collision()
cell.display()