因此，我的蛇会连续移动，但是如果我按> 键，它会返回时，然后向后滞后。这是一个视频：https：//youtu.be/kcesu5bgis8
我的猜测是更快地更新密钥输入，但是当我这样做时，所有内容都会更快地更新，因此蛇会更快。
。代码（按文本形式要求）：
import pyglet
import random
pyglet.resource.path = ["resources"]
pyglet.resource.reindex()
# sets the resource path
class Snake_Window(pyglet.window.Window):
a = 0
dtx = 160
dty = 200
# sets the basic direction and snake body x and y
def __init__(self):
super(Snake_Window, self).__init__(width=1280, height=720)
# sets resolution and inherits
self.key_handler = pyglet.window.key.KeyStateHandler()
self.push_handlers(self.key_handler)
# sets keys
self.set_caption("Wild Snake")
# gives it a name
self.background_image = pyglet.resource.image("background.png")
self.food_image = pyglet.resource.image("food.png")
self.snake_head_image = pyglet.resource.image("snake_head.png")
self.snake_body_image = pyglet.resource.image("snake_body.png")
# makes images usable
self.center_image(self.food_image)
self.center_image(self.snake_head_image)
self.center_image(self.snake_body_image)
# centers the images using center_image
self.snake_head = pyglet.sprite.Sprite(img=self.snake_head_image, x=200, y=200)
self.snake_head.scale = 0.1
self.snake_head.rotation = 270
# sets snake_head as a image on screen
self.snake_body = pyglet.sprite.Sprite(img=self.snake_body_image, x=self.dtx, y=self.dty)
self.snake_body.scale = 0.1
self.snake_body.rotation = 90
# sets snake_body as a image on screen
self.background = pyglet.sprite.Sprite(img=self.background_image, x=0, y=0)
# sets background as a image on screen
self.food = []
# sets food
pyglet.clock.schedule_interval(self.game_tick, 0.1)
def center_image(self, image):
# sets the center of the image to the actual center
image.anchor_x = image.width / 2
image.anchor_y = image.height / 2
def update_snake_head(self):
# makes the snake head go and sets the x and y for the body
if self.a == 0:
self.snake_head.x += 40
self.dtx = self.snake_head.x - 40
self.dty = self.snake_head.y
elif self.a == 1:
self.snake_head.x -= 40
self.dtx = self.snake_head.x + 40
self.dty = self.snake_head.y
elif self.a == 2:
self.snake_head.y += 40
self.dty = self.snake_head.y - 40
self.dtx = self.snake_head.x
elif self.a == 3:
self.snake_head.y -= 40
self.dty = self.snake_head.y + 40
self.dtx = self.snake_head.x
def update_snake_body(self, dtx, dty):
# makes the snakes body go
self.snake_body.x = dtx
self.snake_body.y = dty
def game_tick(self, dt):
# updates snakes head, snakes body, key presses and sets the background
self.update_snake_head()
self.update_snake_body(self.dtx, self.dty)
self.draw_elements()
self.key_press()
print(dt)
def draw_elements(self):
# draws everything in window
self.clear()
self.background.draw()
self.snake_head.draw()
self.snake_body.draw()
def key_press(self):
# sets direction of snake upon key press and rotates his head accordingly
if self.key_handler[pyglet.window.key.RIGHT]:
if self.a == 1:
pass
else:
self.a = 0
self.snake_head.rotation = 270
elif self.key_handler[pyglet.window.key.LEFT]:
if self.a == 0:
pass
else:
self.a = 1
self.snake_head.rotation = 90
elif self.key_handler[pyglet.window.key.UP]:
if self.a == 3:
pass
else:
self.a = 2
self.snake_head.rotation = 180
elif self.key_handler[pyglet.window.key.DOWN]:
if self.a == 2:
pass
else:
self.a = 3
self.snake_head.rotation = 0
game_window = Snake_Window()
pyglet.app.run()
将我的所有评论转换为答案。它不会完全解决您的问题。但是由于缺乏时间，我将留下一些有用的东西几乎可以解决它。
这些原因是一对。其中之一是您使用调度程序渲染内容，而不是使用内置的on_draw事件。不能肯定地说，但是一个很好的猜测是，在您在绘图和侧链渲染功能中进行绘图和东西时，图形缓冲区会在on_draw中自动更新/翻转。因此，将所有渲染内容移入on_draw是有道理的。
另一个问题是，您没有在实际按键按下触发，但是您需要将键按在进入的调度程序中的每个刻度上计时 - 您也将其粘在渲染函数中。从本质上讲，您在一个函数的一个集群***中进行eventhandling 渲染 更新 io。相反，您应该依靠on_key_press进行键盘事件。
最后，您在整个地方进行数学操作 - 当您进行实际渲染时，其中任何一个都可能完成。这就是为什么您可能会获得鬼影或奇怪的人工制品（有些事情还没有完全完成更新位置等）。
，但这几乎是一个工作的示例，这些示例是为了更接近您想要的步骤而采取的几个步骤。如果没有其他人（包括您）几天没有解决此问题，我将继续重写大部分代码，并指向您的一些好方向（其中之一）。
import pyglet
import random
pyglet.resource.path = ["resources"]
pyglet.resource.reindex()
# sets the resource path
class Snake_Window(pyglet.window.Window):
a = 0
dtx = 160
dty = 200
# sets the basic direction and snake body x and y
def __init__(self):
super(Snake_Window, self).__init__(width=1280, height=720)
# sets resolution and inherits
self.key_handler = pyglet.window.key.KeyStateHandler()
self.push_handlers(self.key_handler)
# sets keys
self.set_caption("Wild Snake")
# gives it a name
self.background_image = pyglet.resource.image("background.png")
self.food_image = pyglet.resource.image("food.png")
self.snake_head_image = pyglet.resource.image("snake_head.png")
self.snake_body_image = pyglet.resource.image("snake_body.png")
# makes images usable
self.center_image(self.food_image)
self.center_image(self.snake_head_image)
self.center_image(self.snake_body_image)
# centers the images using center_image
self.snake_head = pyglet.sprite.Sprite(img=self.snake_head_image, x=200, y=200)
self.snake_head.rotation = 270
# sets snake_head as a image on screen
self.snake_body = pyglet.sprite.Sprite(img=self.snake_body_image, x=self.dtx, y=self.dty)
self.snake_body.scale = 0.1
self.snake_body.rotation = 90
# sets snake_body as a image on screen
self.background = pyglet.sprite.Sprite(img=self.background_image, x=0, y=0)
# sets background as a image on screen
self.food = []
# sets food
pyglet.clock.schedule_interval(self.game_tick, 0.1)
def on_draw(self):
self.draw_elements()
def center_image(self, image):
# sets the center of the image to the actual center
image.anchor_x = image.width / 2
image.anchor_y = image.height / 2
def update_snake_head(self):
# makes the snake head go and sets the x and y for the body
if self.a == 0:
self.snake_head.x += 40
self.dtx = self.snake_head.x - 40
self.dty = self.snake_head.y
elif self.a == 1:
self.snake_head.x -= 40
self.dtx = self.snake_head.x + 40
self.dty = self.snake_head.y
elif self.a == 2:
self.snake_head.y += 40
self.dty = self.snake_head.y - 40
self.dtx = self.snake_head.x
elif self.a == 3:
self.snake_head.y -= 40
self.dty = self.snake_head.y + 40
self.dtx = self.snake_head.x
def update_snake_body(self, dtx, dty):
# makes the snakes body go
self.snake_body.x = dtx
self.snake_body.y = dty
def game_tick(self, dt):
# updates snakes head, snakes body, key presses and sets the background
self.update_snake_head()
self.update_snake_body(self.dtx, self.dty)
def draw_elements(self):
# draws everything in window
self.clear()
self.background.draw()
print('Head:', self.snake_head.x, self.snake_head.y, {0:'Right', 1:'Left', 2: 'Up', 3:'Down'}[self.a])
self.snake_head.draw()
self.snake_body.draw()
self.flip()
def on_key_press(self, symbol, modifier):
# sets direction of snake upon key press and rotates his head accordingly
if symbol == pyglet.window.key.ESCAPE:
pyglet.app.exit()
if symbol == pyglet.window.key.SPACE:
print('Here')
if symbol == pyglet.window.key.RIGHT:
if self.a == 1:
pass
else:
self.a = 0
self.snake_head.rotation = 270
elif symbol == pyglet.window.key.LEFT:
if self.a == 0:
pass
else:
self.a = 1
self.snake_head.rotation = 90
elif symbol == pyglet.window.key.UP:
if self.a == 3:
pass
else:
self.a = 2
self.snake_head.rotation = 180
elif symbol == pyglet.window.key.DOWN:
if self.a == 2:
pass
else:
self.a = 3
self.snake_head.rotation = 0
game_window = Snake_Window()
pyglet.app.run()
我不仅要留下这个工程代码，而且给您一个很好的建议。
停止提出这么多问题，然后开始学习调试的方法，为什么事情会以它们的方式发生。您现在正在黑暗中拍摄，提出问题，希望有人能为您解决问题，以便您专注于有趣的东西 - 这是游戏开发本身。
但是，您将在以后的生活中大量使用 - 找到调试，探测，理解并指出为何会按照您想要的方式发生或没有发生的方法。
在这里和那里放一些print("moo")，打印一些值，在整个地方添加日志记录/调试，直到变得更加明智。它并不总是有效的，但是它以您的代码使我达到了这一点。