1. Overview of Pygame

Pygame is a cross-platform python module, which is converted to video game design (including images and sounds), and is built on the basis of SDL (Simple DirectMedia Layer), without the comfort of low-level languages (such as assembly). All game functions and concepts are reduced to the game logic itself, and all resource structures can be provided by a high-level language.

1. Install Pyganme

Pygame official website: http://www.pygame.org , you can find relevant documents on the official website.

Install:

pip install pygame

Installation check:

# _*_ coding:utf-8 _*_

import pygame
pygame.ver         # 查看pygame版本

As a result, the version displayed indicates that the installation was successful:

pygame 2.1.2 (SDL 2.0.18, Python 3.7.8)
Hello from the pygame community. https://www.pygame.org/contribute.html
>>>

2. Introduction to common modules of Pygame

Pygame common modules
module	illustrate
pygame.cdrom	access drive
pygame.cursors	load cursor
pygame.display	access display device
pygame.draw	Draw shapes, lines and points
pygame.event	manage events
pygame.font	use fonts
pygame.image	Load and store images
pygame.joystick	Use a tethered handle or something similar
pygame.key	read keyboard keys
pygame.mixer	sound
pygame.mouse	mouse
pygame.music	play audio
pygame.overlay	Access advanced video overlays
pygame.reet	Manage Rectangular Areas
pygame.sndarray	Operating sound data
pygame.sprite	Manipulate moving images
pygame.surface	Manage images and screens
pygame.surfarray	Manage bitmap data
pygame.time	Manage time and frame information
pygame.transform	Zoom and move images

2.1 Common methods of display module

Common methods of display module
method	illustrate	illustrate
pygame.display.init()	Initialize the display module
pygame.display.quit()	End display module
pygame.display.get_init()	Returns whether to initialize, initialization returns True
pygame.display.set_mode()	Initialization interface	set_mode(width,height) specifies the width and height of the interface
pygame.display.get_surface()	Get the current Surface object
pygame.display.flip()	Update the entire surface object to be displayed to the screen
pygame.display.update()	Update part of the content to display on the screen. If there is no parameter, it is to update the entire surface object

2.2 Common methods of pygame.event module

Common methods of event module
method	illustrate	Remark
pygame.event.get()	get event queue	QUIT: Close window event detected KEYDOWN: keyboard down event MOUSEBUTTONDOWN: mouse down event

2.3 Common methods of Surface objects

Common methods of Surface objects
method	illustrate	Remark
pygame.Surface.blit()	draw an image onto another image
pygame.Surface.convert()	Convert the pixel format of an image
pygame.Surface.convert_alpha()	Convert the pixel format of the image, including the alpha channel
pygame.Surface.fill()	Color Fill Surface
pygame.Surface.get_rect()	Get the rectangular area of Surface and return a Rect object

2. Problem summary

1. Form problem

1.1 After adding an infinite loop, the form does not respond.

Problem: In order to keep the form displayed, an infinite loop is added to the code segment to keep the code displayed, but the form is stuck after adding the infinite loop.

while True:
    clock.tick(60)
    pygame.display.flip()

Result: Even with a clock added, it still freezes

There is no specific solution after searching on the Internet. After adding event scanning later, it will not be stuck. The specific reason is not clear.

This is different from C# and the like, you need to add events to avoid error reporting.

while True:
    clock.tick(60)

    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            sys.exit()

    pygame.display.flip()

Python study notes-Pygame