我正试图从kivy文档中修改乒乓球游戏。
我做了一个"；游戏结束"；宣布获胜者后应用程序进入的屏幕，在那里我想要一个显示获胜者分数的标签，使用下面使用的方法，我在标签中获得完全不同的输出，
有人能解释一下我该如何做到这一点吗？非常感谢。
相关代码位于两者的底部，我只是将整个代码包括在内，以防问题发生在其他地方
import kivy
from kivy.app import App
from kivy.uix.widget import Widget
from kivy.lang.builder import Builder
from kivy.uix.screenmanager import Screen, ScreenManager
from kivy.properties import NumericProperty, ReferenceListProperty, ObjectProperty
from kivy.vector import Vector
from kivy.uix.floatlayout import FloatLayout
from kivy.uix import label
from kivy.uix.gridlayout import GridLayout
from kivy.uix.button import Button
from kivy.clock import Clock
from kivy.config import Config
from kivy.uix.boxlayout import BoxLayout
from kivy.uix.label import Label
class WindowManager(ScreenManager):
def On_Win(self):
p1 =self.Game.player_1.score
class MenuWindow(Screen):
pass
class PongBall(Widget):
velocity_y= NumericProperty(0)
velocity_x= NumericProperty(0)
velocity=ReferenceListProperty(velocity_x,velocity_y)
def move(self):
self.pos = Vector(self.velocity) +self.pos
class PongPad(Widget):
score=NumericProperty(0)
def Check_bounce(self,ball):
if self.collide_widget(ball) :
vx,vy= ball.velocity
bounced= Vector(-1* vx, vy )
speedup= abs(((ball.velocity_x *0.1) -(ball.center_y - self.center_y)) *0.002)
vel = bounced * (speedup +1.1)
offset=(((ball.center_y - self.center_y)/2) - (ball.velocity_x /2)) *0.1
if (ball.center_y - self.center_y) > 0:
ball.velocity=vel.x,vel.y
ball.velocity_y= 2
else:
ball.velocity= vel.x,vel.y
ball.velocity_y= -2
class Game(Screen):
ball = ObjectProperty(None)
player_1 = ObjectProperty(None)
player_2 = ObjectProperty(None)
win1=NumericProperty(0)
win2=NumericProperty(0)
def on_enter(self, *args):
self.serve_ball()
Clock.schedule_interval(self.update, 1.0/60.0)
def Winner(self):
Winner=""
if self.player_1.score==2:
if self.manager.current != "WinGame":
self.manager.current = "WinGame"
Winner = "P1 with",str(self.player_1.score)
if self.player_2.score == 2:
if self.manager.current !="WinGame":
self.manager.current = "WinGame"
Winner = "P2 with",str(self.player_2.score)
def TEST(self):#TESTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTT
Winner=""
if self.player_1.score>=2:
Winner = "P1 with",str(self.player_1.score)
print("1")
print(Winner)
return Winner
def serve_ball(self,vel=(4,0)):
print("234Served")
self.ball.velocity= vel
self.ball.center = self.center
self.player_1.center_y=self.center_y
self.player_2.center_y=self.center_y
def Check_Top_Bottom(self):
#Check bottom collion
if self.ball.y <0:
self.ball.velocity_y= abs(self.ball.velocity_y)
#Check top colision
if self.ball.y+50> self.height:
self.ball.velocity_y = -abs(self.ball.velocity_y)
def Check_if_score(self):#Score
if self.ball.x >self.width:
self.player_1.score +=1
self.win1 +=1
self.serve_ball()
if self.ball.x+50 <0:
self.player_2.score += 1
self.win2 +=1
self.serve_ball()
def update(self,dt):
self.ball.move()
self.Check_Top_Bottom()
self.Check_if_score()
self.player_1.Check_bounce(self.ball)
self.player_2.Check_bounce(self.ball)
self.Winner()
#print("from Update: ",self.Get_Score())
def on_touch_move(self,touch):
if touch.x > self.width/2:
self.player_2.center_y = touch.y
else:
self.player_1.center_y= touch.y
class WinGameScreen(Screen):
def Get_Win(self):
screen_manager = self.manager
game = screen_manager.get_screen('Game')
a= game.TEST()
return a
kv= Builder.load_file("myMenu.kv")
class myMenuApp(App):
def build(self):
return kv
if __name__ == "__main__":
myMenuApp().run()
这是kv文件：
WindowManager:
MenuWindow:
Game:
WinGameScreen:
<MenuWindow>:
name: "Menu"
FloatLayout:
Button:
size_hint: 0.2,0.05
pos_hint: {"x":0.39,"y":0.75}
text:"Play"
on_release:
app.root.current= "Game"
root.manager.transition.direction= "left"
Button:
size_hint: 0.2,0.05
pos_hint: {"x":0.39,"y":0.7}
text:"Settings"
Button:
size_hint: 0.2,0.05
pos_hint: {"x":0.39,"y":0.65}
text:"High Score"
Button:
size_hint: 0.2,0.05
pos_hint: {"x":0.39,"y":0.6}
text:"Quit"
<PongBall>
size_hint: None, None
size: 50,50
canvas:
Ellipse:
pos:self.pos
size:self.size
<PongPad>
size_hint: None, None
size:25,150
canvas:
Rectangle:
pos:self.pos
size:self.size
<Game>:
name:"Game"
ball: Pong_ball
player_1: Player1
player_2: Player2
canvas:
Rectangle:
pos:self.center_x -5,0
size: 15,root.height
PongPad:
id: Player2
pos:root.width-25,root.center_y-75
PongPad:
id: Player1
pos:0,root.center_y-75
PongBall:
id: Pong_ball
center: self.parent.center
FloatLayout:
Label:
text:str(root.player_1.score)
top:root.top -1
x:root.width -100
Label:
text:"Player 2:"
top: root.top-1
x:root.width - 135
Label:
text: str(root.player_2.score)
top: root.top -1
x: root.x+25
Label
text: "Player 1:"
top:root.top-1
x:root.x -10
<WinGameScreen>:
name:"WinGame"
Label:
id: Final_score
text: str(root.Get_Win)
y:0.2
在kv中，行：
text: str(root.Get_Win)
当加载kv时，将Label的文本设置为Get_Win()方法的字符串版本。它没有运行Get_Win()方法。你可以删除那一行。
由于游戏结束后您切换到WinGameScreen，因此您可以为WinGameScreen定义一个on_enter()方法，该方法将在输入Screen时运行：
class WinGameScreen(Screen):
def on_enter(self, *args):
screen_manager = self.manager
game = screen_manager.get_screen('Game')
a= game.TEST()
self.ids.Final_score.text = str(a)