screen.onkey(snake.left, "Left")
screen.onkey(snake.right, "Right")
game_is_on = True
while game_is_on:
screen.update()
time.sleep(.050)
snake.move()
if snake.head.distance(food) < 15:
food.new_location()
score.increase_score()
snake.extend()
if snake.head.xcor() > 280 or \
snake.head.xcor() < -280 or \
snake.head.ycor() > 280 or \
snake.head.ycor() < -280:
game_is_on = False
for segment in snake.segments[1:]:
if snake.head.distance(segment) < 10:
game_is_on = False
score.clear()
food.clear()
snake.clear_snake()
score.game_over()
screen.exitonclick()
def main():
# TODO 1: Configure screen
screen = Screen()
screen.setup(width=SCREEN_WIDTH, height=SCREEN_HEIGHT)
screen.bgcolor(SCREEN_BACKGROUND_COLOR)
screen.tracer(0)
# Add borders
border = Border()
border.createBorder()
# TODO 2: Configure initial snake
snake = Snake()
food = Food()
scoreboard = Scoreboard()
# TODO 3: Move the snake
screen.listen()
screen.onkey(snake.up, "Up")
screen.onkey(snake.down, "Down")
screen.onkey(snake.left, "Left")
screen.onkey(snake.right, "Right")
#global paused
#def unpause():
# global paused
# paused = not paused
#screen.onkey(unpause, "p")
game_is_on = True
while game_is_on:
#while paused:
# sleep(0.2)
screen.update()
sleep(SLEEP_TIME)
snake.move()
# TODO 4: Detect collision with food
snake_food_collision_distance = (
food.width() + snake.head.width()) / 2 - COLLISION_ERROR
if snake.head.distance(food) < snake_food_collision_distance:
scoreboard.score += 1
snake.add_segment()
food.refresh()
for segment in snake.tail:
while segment.position() == food.position():
food.clear()
food.refresh()
scoreboard.refresh()
# TODO 5: Detect collision with walls
pass_x_wall = (
snake.head.xcor() < -SCREEN_WIDTH / 2 + snake.head.width()
or snake.head.xcor() > SCREEN_WIDTH / 2 - snake.head.width())
pass_y_wall = (
snake.head.ycor() < -SCREEN_HEIGHT / 2 + snake.head.width()
or snake.head.ycor() > SCREEN_HEIGHT / 2 - snake.head.width())
wall_collision = pass_x_wall or pass_y_wall
if wall_collision:
scoreboard.resetHighestScore()
snake.resetSnake()
# TODO 6: Detect collision with tail
tail_head_collision_distance = snake.head.width() - COLLISION_ERROR
for segment in snake.tail[1:]:
if segment.distance(snake.head) < tail_head_collision_distance:
scoreboard.resetHighestScore()
snake.resetSnake()
screen.exitonclick()
