[Star Project] small hat aircraft War (III)

Little hat airplane battle

Chapter vii. Strengthen collision judgment （Strengthen collision judgment）

One 、 The preset is the collision judgment of rectangle

Two 、 Change to circular collision judgment

import pygame
import random
import os

#  It will be updated in a second 60 The next picture 
FPS = 60
#  Width of window 
WIDTH = 500
#  Height of window 
HEIGHT = 600

#  Window background color 
BLACK =