蛇游戏的分数没有增加

Question

这个蛇游戏的代码。我想在这个游戏中添加系统分数。这样，每当蛇吃掉他的分数就会增加。但如果蛇没有得到食物，分数就不会增加。

如何显示当前分数？

这是："quot"一个简单的蛇游戏使用乌龟图形"quot"进口甲鱼导入数学导入随机

WIDTH = 500
HEIGHT = 500
FOOD_SIZE = 10
DELAY = 100  # milliseconds
offsets = {
"up": (0, 20),
"down": (0, -20),
"left": (-20, 0),
"right": (20, 0)
}

分数没有更新
def-addscore((：全球得分得分+=1

def reset():
global snake, snake_direction, food_pos, pen
snake = [[0, 0], [0, 20], [0, 40], [0, 60], [0, 80]]
snake_direction = "up"
food_pos = get_random_food_pos()
food.goto(food_pos)
#screen.update() Only needed if we are fussed about drawing food before next call to `draw_snake()`.
move_snake()

def move_snake():
global snake_direction
#  Next position for head of snake.
new_head = snake[-1].copy()
new_head[0] = snake[-1][0] + offsets[snake_direction][0]
new_head[1] = snake[-1][1] + offsets[snake_direction][1]
# Check self-collision
if new_head in snake[:-1]:  # Or collision with walls?
reset()
else:
# No self-collision so we can continue moving the snake.
snake.append(new_head)
# Check food collision
if not food_collision():
snake.pop(0)  # Keep the snake the same length unless fed.

结束

#  Allow screen wrapping
if snake[-1][0] > WIDTH / 2:
snake[-1][0] -= WIDTH
elif snake[-1][0] < - WIDTH / 2:
snake[-1][0] += WIDTH
elif snake[-1][1] > HEIGHT / 2:
snake[-1][1] -= HEIGHT
elif snake[-1][1] < -HEIGHT / 2:
snake[-1][1] += HEIGHT
# Clear previous snake stamps
pen.clearstamps()
# Draw snake
for segment in snake:
pen.goto(segment[0], segment[1])
pen.stamp()
# Refresh screen
screen.update()
# Rinse and repeat
turtle.ontimer(move_snake, DELAY)

def food_collision():
global food_pos
if get_distance(snake[-1], food_pos) < 20:
food_pos = get_random_food_pos()
food.goto(food_pos)
return True
return False
def get_random_food_pos():
x = random.randint(- WIDTH / 2 + FOOD_SIZE, WIDTH / 2 - FOOD_SIZE)
y = random.randint(- HEIGHT / 2 + FOOD_SIZE, HEIGHT / 2 - FOOD_SIZE)
return (x, y)
def get_distance(pos1, pos2):
x1, y1 = pos1
x2, y2 = pos2
distance = ((y2 - y1) * 2 + (x2 - x1) * 2) ** 0.5
return distance
def go_up():
global snake_direction
if snake_direction != "down":
snake_direction = "up"
def go_right():
global snake_direction
if snake_direction != "left":
snake_direction = "right"
def go_down():
global snake_direction
if snake_direction != "up":
snake_direction = "down"
def go_left():
global snake_direction
if snake_direction != "right":
snake_direction = "left"
# Screen
screen = turtle.Screen()
screen.setup(WIDTH, HEIGHT)
screen.title("Snake")
screen.bgcolor("green")
screen.setup(500, 500)
screen.tracer(0)
# Pen
pen = turtle.Turtle("square")
pen.penup()
pen.hideturtle()
pen.goto(0, 250)
pen.write("Score : 0  High Score : 0", align="center", font=("candara", 24, "bold"))

# Food
food = turtle.Turtle()
food.shape("circle")
food.color("red")
food.shapesize(FOOD_SIZE / 20)  # Default size of turtle "square" shape is 20.
food.penup()
# Event handlers
screen.listen()
screen.onkey(go_up, "Up")
screen.onkey(go_right, "Right")
screen.onkey(go_down, "Down")
screen.onkey(go_left, "Left")
# Let's go
reset()
turtle.done()

Answer 1

它已经定义，但您必须调用addscore()函数。更换

if not food_collision():
snake.pop(0)

带有

if food_collision():
addscore()
else:
snake.pop(0)

Answer 2

您可以将此代码添加到游戏中。它会写一个分数：

score = 0
#Creating Score Writer
turtle.hideturtle()
turtle.penup()
turtle.color("white")
turtle.goto(-300,300)
turtle.write(f"Score = {score}", font=("Arial",16,"normal"))

您也不需要screen.setup((。您可以更改分数变量。每次你想要文本更新你写

turtle.clear()
turtle.write(f"Score = {score}", font=("Arial",16,"normal"))