# restart game
screen.onkey(restart_game, 'space')
game_is_on = True
while game_is_on:
screen.update()
time.sleep(0.1)
snake.move()
# Detect the collision
if snake.head.distance(food) < 15:
food.refresh()
scoreboard.increase_score()
snake.extend()
food.color_generator()
# Detect collision on the wall.
if snake.head.xcor() > 290 or snake.head.xcor() < -290 or snake.head.ycor(
) > 260 or snake.head.ycor() < -290:
scoreboard.chance_left -= 1
scoreboard.reset()
snake.reset()
# Detect collision on with the tail.
for segment in snake.segment[1:]:
if snake.head.distance(segment) < 10:
scoreboard.chance_left -= 1
scoreboard.reset()
snake.reset()
