创建对pygame的图书馆并且我的全局变量无法工作

Question

我试图制作一个简单的库来简化某些pygame函数和其他东西。当我尝试使用设置RGB变量的函数时，它说它没有定义

错误：

Traceback (most recent call last):
  File "C:\Users\matthew.shapiro\Desktop\Files_for_code_S2\librarytest.py", line 7, in <module>
    fill(BLACK)
NameError: name 'BLACK' is not defined

#library
import pygame
import math
def autoscreen(a,b):
    global size
    global screen
    size = (500,500)
    screen = pygame.display.set_mode(size)
def basicRGB():
    global BLACK
    BLACK = (   0,   0,   0)
    global WHITE
    WHITE = ( 255, 255, 255)
    global GREEN
    GREEN = (   0, 255,   0)
    global RED
    RED = ( 255,   0,   0)
    global BLUE
    BLUE = (   0,   0, 255)
def setPI():
    global PI
    PI = 3.141592653
def flip():
    pygame.display.flip()
def fps(c):
    global clock
    clock = pygame.time.Clock()
    clock.tick(c)
def fill(e):
    screen.fill(e)


#librarytest
import pygame
from easypygame import*
autoscreen(500,500)
fps(60)
flip()
basicRGB()
fill(BLACK)

Answer 1

如果这是在类中，而不是全局，请使用self.BLACK。如果不是，请使用字典，例如：

def basicRGB():
    dictionary={}
    dictionary.update({'BLACK':(   0,   0,   0)})
    return dictionary

def fill(dictionary, e):
    screen.fill(dictionary[e])

例如，转到this repl.it program that I made using this.