Objective

I want to create a splash screen when my game is loading. So when my game is loading another window will be created saying please wait until game is fully loaded. I tried threading in my tkinter file but it didn't worked.

Problem

It is not working because Tkinter doesn't allows ursina window to startup.

Code

Startup.py https://pastebin.com/pNsbzZ1X

'''
Copyright © 2022 <Luís Almeida>

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the “Software”), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
'''

from tkinter import *
import tkinter as tk

from threading import *
import time


class StartUp(Thread):
    def __init__(self):
        result = self.run()
        Thread(target=result).start()


    def run(self):
        print("Initializing Startup Popup")

        self.root = tk.Tk()

        self.dot = "."
        self.lastClickX = 0
        self.lastClickY = 0

        self.design()
        self.Refresher()

        self.root.mainloop()



    def design(self):
        # Root window
        self.root.title("Space Exploration")
        self.root.geometry('350x350')

        self.root.bind('<Button-1>', self.SaveLastClickPos)
        self.root.bind('<B1-Motion>', self.Dragging)

        self.root.wm_attributes('-type', 'splash')
        self.root.attributes('-alpha',0.8)

        # Labels
        global wait_text_update

        self.Title = tk.Label(self.root, text="\nSpace Exploration", font=("Arial", 25))
        self.Title.pack()

        self.wait_text = tk.Label(self.root, text="\nis loading", font=("Arial", 20))
        self.wait_text.pack()

        self.wait_text_update = tk.Label(self.root, text="\n\nPlease wait...", font=("Arial", 15))
        self.wait_text_update.pack()


        self.spacer = tk.Label(self.root, text="\n\n", font=("Arial", 15))
        self.spacer.pack()


        self.timer = tk.Label(self.root, text="\n\nPlease wait...", font=("Arial", 15))
        self.timer.pack()

    def Refresher(self):
        global timer

        if self.dot == ".":
            self.dot = ".."

        elif self.dot == "..":
            self.dot = "..."
            
        elif self.dot == "...":
            self.dot = "."

        print(self.dot)
    
        self.wait_text_update.configure(text="\n\nPlease wait "   self.dot)

        
        self.timer.configure(text=time.asctime())
        self.root.after(1000, self.Refresher) # every second...



    def SaveLastClickPos(self, event):
        self.lastClickX = event.x
        self.lastClickY = event.y


    def Dragging(self, event):
        x, y = event.x - self.lastClickX   self.root.winfo_x(), event.y - self.lastClickY   self.root.winfo_y()
        self.root.geometry(" %s %s" % (x , y))

if __name__ == "__main__":
    StartUp()

(Short Version of) Main.py https://pastebin.com/ppHPRHPy

'''
Copyright © 2022 <Luís Almeida>
 
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the “Software”), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
 
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
 
THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
'''
 
 
# ursina
from ursina import *
 
from threading import *
 
t1=Thread(target=StartUp())
t1.start()
 
try:
    # Start Game
    app = Ursina()
    ...
    app.run()
except:
    ReportError```

CodePudding user response：

So, I figure it out with the help of https://www.studytonight.com/python/python-thread-object What you needed to do was in StartUp():

class StartUp(threading.Thread):
    def __init__(self, i):
        threading.Thread.__init__(self)


    def run(self):
        print("Initializing Startup Popup")

        self.root = tk.Tk()

        self.dot = "."
        self.lastClickX = 0
        self.lastClickY = 0

        self.design()
        self.Refresher()

        self.root.mainloop()

put in main.py:

thread1 = StartUp(1)
thread1.start()

and change the way I imported it by import threading