The pygame library pgu uses sample code

Directory Preface 1. What is pgu? 2. Use step 1. Install library 2. Make button pop-up window 3. Make event trigger pop-up window 4. Complete code summary of two modes

Preface

Now more and more people use pygame to make small games, but pygame has no pop-up mechanism
To solve this problem, we will use tkinter library or pgu library in two ways
pgu library is not very suitable for novice introduction of a manual, only download the file of a number of function examples and explanations, so this article mainly introduces pgu by the button and set events triggered by two ways
In addition, it also solves the problem of pop-up window under the window of pygame

1. What is pgu?

The full name of pgu is Phil 's pyGame Utilities, which is a group of modules and scripts of pygame, and gui integrates one small module

Download address

Download address

pgu Home Page

2. Use steps

1. Install the library

Open cmd under window10 and enter pip install pygame-pgu
You can also download the package directly with the above address

2. Make a button pop-up window

The code is as follows (example):
Introducing library

import pygame
import random
import pgu 
from pgu import gui,timer

First, use pygame to generate a 500*500 window. There are many pop-ups in the example of pgu, but there are few pop-ups in the window generated by pygame

pygame.init()
screencaption = pygame.display.set_caption('chess')
screen = pygame.display.set_mode((500, 500))

Construct a custom pop-up window (dialog) class

class TestDialog(gui.Dialog):
    def __init__(this):
        title = gui.Label("Some Dialog Box")                   # Pop-up title 
        label = gui.Label("Close this window to resume.")      # Pop-up contents 
        gui.Dialog.__init__(this, title, label)

Initialization, pgu had better generate a container to store the buttons needed to be placed, and finally remember init initialization

app = gui.App()                       # Initialization gui
c = gui.Container(align=-1,valign=-1) # Generate gui Container of 
abc = TestDialog()                    # Generate a pop-up window abc
btn = gui.Button("a")                 # Generate text as a Button of 
btn.connect(gui.CLICK, abc.open, None)# Bind the button to the pop-up of the pop-up window 
c.add(btn,0,0)                        # Place the button in the container (0,0) Position 
app.init(c)    

First use pygame to generate a 500*500 window, and then use the pop-up elements imported from pgu

pygame.init()
screencaption = pygame.display.set_caption('chess')
screen = pygame.display.set_mode((500, 500))

The main function is the pygame event loop retrieval mechanism, but it should be noted that the pygame event is transmitted to pgu using app. event function, otherwise the command of pgu cannot be executed

while True:
    for e in pygame.event.get():
        if e.type is pygame.QUIT: 
            pygame.quit()
        else:
            app.event(e)    # Will pygame The event is passed to the pgu , very important 
    screen.fill((0,0,0))    # Generate 1 Screens 
    app.paint()             # Will pgu Draw the contents of the container 
    pygame.display.update()

3. Make an event trigger pop-up window

In addition to triggering events through buttons on the interface, we often need to trigger the pop-up window by using an event. Here, the variable a is set, and every time the button a is pressed, it will increase by 1 until a is greater than 5 to trigger the pop-up event of the pop-up window
Introducing library

a = 0

Bind the self-increasing function of a to the button

def add(self):
    global a
    a = a + 1
btn.connect(gui.CLICK, add, None)# Bind the button to the pop-up of the pop-up window 

Add the judgment state function, and pop-up window can be popped up when it is judged as True

 if a > 5:
        abc.open()
        a = 0

4. Complete code for both modes

Button triggers pop-up window

import pygame
import random
import pgu 
from pgu import gui,timer


class TestDialog(gui.Dialog):
    def __init__(this):
        title = gui.Label("Some Dialog Box")
        label = gui.Label("Close this window to resume.")
        gui.Dialog.__init__(this, title, label)


pygame.init()
screencaption = pygame.display.set_caption('chess')
screen = pygame.display.set_mode((500, 500))
app = gui.App()                       # Initialization gui
c = gui.Container(align=-1,valign=-1) # Generate gui Container of 
abc = TestDialog()                    # Generate a pop-up window abc
btn = gui.Button("a")                 # Generate text as a Button of 
btn.connect(gui.CLICK, abc.open, None)# Bind the button to the pop-up of the pop-up window 
c.add(btn,0,0)                       # Place the button in the container (0,0) Position 
app.init(c)                           

while True:
    for e in pygame.event.get():
        if e.type is pygame.QUIT: 
            pygame.quit()
        else:
            app.event(e)    # Will pygame The event is passed to the pgu , very important 
    screen.fill((0,0,0))    # Generate 1 Screens 
    app.paint()             # Will pgu The contents of the container are drawn 
    pygame.display.update()

Event trigger pop-up code

import pygame
import random
import pgu 
from pgu import gui,timer


class TestDialog(gui.Dialog):
    def __init__(this):
        title = gui.Label("Some Dialog Box")
        label = gui.Label("Close this window to resume.")
        gui.Dialog.__init__(this, title, label)


pygame.init()
screencaption = pygame.display.set_caption('chess')
screen = pygame.display.set_mode((500, 500))
global a 
a = 0
app = gui.App()                       # Initialization gui
c = gui.Container(align=-1,valign=-1) # Generate gui Container of 
abc = TestDialog()                    # Generate a pop-up window abc
btn = gui.Button("a")                 # Generate text as a Button of 
def add(self):
    global a
    a = a + 1
btn.connect(gui.CLICK, add, None)# Bind the button to the pop-up of the pop-up window 
c.add(btn,0,0)                       # Place the button in the container (0,0) Position 
app.init(c)                           

while True:
    for e in pygame.event.get():
        if e.type is pygame.QUIT: 
            pygame.quit()
        else:
            app.event(e)    # Will pygame The event is passed to the pgu , very important 
    screen.fill((0,0,0))    # Generate 1 Screens 
    app.paint()             # Will pgu The contents of the container are drawn 
    if a > 5:
        abc.open()
        a = 0
    pygame.display.update()

When I tried, I found:
1. If there is no function of screen. fill, the pop-up window will not be closed
2. The pgu event cannot be executed without app. event

Summarize

The content of pgu is less than that of tkinter, and it will be more stable than that of pygame, but the hard injury of pgu is that it can't display Chinese interface, so it is best to use tkinter for this requirement