我如何才能修复这个网格板，使其不重叠我的程序中的主要细节？

Question

这个程序将绘制一个网格板，其中包含主要的细节(圆圈)。

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问题

但董事会与主要细节重叠，使得主要细节不太可能在屏幕上显示(见下面的截图)。

Pygame码

import pygame
from random import randint

pygame.init()

gameDisplay = pygame.display.set_mode((915,915))

## 0 = nâu // 1 = xanh da trời // 2 = xanh lá // 3 = xanh đậm // 4 = tím // 5 = vàng // 6 = đỏ
colors = [(102,51,0),(0,255,255),(0,255,0),(0,51,204),(102,0,204),(255,255,0),(255,0,0)]
slots = []
x = 0
y = 0
click_pos = (0,0)
play = True
#Size of squares
size = 83
white = (255,255,255)
gray = (200,200,200)
deep_gray = (20,20,20)
green = (0,255,0)
black = (0,0,0)
boardLength = 9
i = 0
z = 0
clicked = False
selecting = False
ball_spawn = True
balls_x = []
balls_y = []
ball_amount = 0
ball_color = []
ball_drew = 0
get_ball_pos = True
click_once = 0
balls_per_generate = 3
balls_generated = 0
selected_ball_x = 0
selected_ball_y = 0
move = False
check_move = False

#bg color
gameDisplay.fill(deep_gray)                                           
while play == True:
    for events in pygame.event.get():
        if events.type == pygame.MOUSEBUTTONUP:
            click_pos = list(pygame.mouse.get_pos())
            clicked = True
        if events.type == pygame.QUIT:
            play = False
    # GRID
    i = 0       
    z = 0
    while boardLength > z:
        #border
        pygame.draw.rect(gameDisplay, black, [size-5,size-5,boardLength*size+5 ,boardLength*size+5])
        #grid squares
        for i in range(1,boardLength+1):
            for z in range(1,boardLength+1):
                pygame.draw.rect(gameDisplay, gray, [size*z,size*i,size-5,size-5])
    #get click pos on grid
    if clicked == True:
        click_once += 1
        if click_once == 1:
            x = round((click_pos[0]-size/2) / size)
            y = round((click_pos[1]-size/2) / size)
            if x > 0 and x < 10 and y > 0 and y < 10:
                grid_x = x*size
                grid_y = y*size
            clicked = False
            selecting = True
            get_ball_pos = True
            ball_spawn = True
            balls_per_generate += 0
    else:
        click_once = 0
    #selector
    if selecting:
        pygame.draw.rect(gameDisplay, green, (grid_x,grid_y,size-5,size-5), 5)
        #get selected ball
        if x in balls_x and y in balls_y:
            selected_ball_x = balls_x.index(x)
            selected_ball_y = balls_y.index(y)   
            check_move = not check_move
        elif check_move == True:
            move = True
            selecting = False
            check_move = False
            balls_x[selected_ball_x]
            balls_y[selected_ball_y]
    # BALLS
    while ball_spawn:    
        while get_ball_pos:
            ball_grid_x = randint(1,9)
            ball_grid_y = randint(1,9)
            if not (ball_grid_x, ball_grid_y) in zip(balls_x, balls_y):      
                if ball_amount < balls_per_generate:         
                    balls_x.append(ball_grid_x)
                    balls_y.append(ball_grid_y)
                    ball_color.append(colors[randint(0,6)])               
                    balls_generated += 1
                    ball_amount += 1
                if balls_generated >= balls_per_generate:
                    get_ball_pos = False
        while ball_drew < ball_amount:
            pygame.draw.circle(gameDisplay, ball_color[ball_drew], (balls_x[ball_drew]*size + size*0.5 - 2, balls_y[ball_drew]*size + size*0.5 - 2), 25)
            pygame.draw.circle(gameDisplay, black, (balls_x[ball_drew]*size + size*0.5 - 2, balls_y[ball_drew]*size + size*0.5 - 2), 25, 5)
            ball_drew += 1
            #check LOSE
            if ball_drew == 81:
                play = False
                ball_spawn = False                 
        ball_drew = 0
        ball_spawn = False  
    #debugger    
    print(balls_x)
    #final result
    pygame.display.update()
pygame.quit()
quit()

它绘制网格板，然后在网格板顶部绘制主要细节，然后更新显示，但网格板更有可能位于主要细节之上。我怎么才能解决这个问题？

Answer 1

您必须在每一帧中重新绘制整个场景(网格和所有对象)：

while play == True:
    
    # event loop
    for events in pygame.event.get():
        if events.type == pygame.MOUSEBUTTONUP:
            click_pos = list(pygame.mouse.get_pos())
            clicked = True
        if events.type == pygame.QUIT:
            play = False

    # clear dispaly
    gameDisplay.fill(0)
    
    # draw grid
    pygame.draw.rect(gameDisplay, black, [size-5,size-5,boardLength*size+5 ,boardLength*size+5])
    for i in range(1,boardLength+1):
        for z in range(1,boardLength+1):
            pygame.draw.rect(gameDisplay, gray, [size*z,size*i,size-5,size-5])

    # draw all the objects
    for x, y, c in zip(balls_x, balls_y, ball_color):
        pygame.draw.circle(gameDisplay, c, (x*size + size*0.5 - 2, y*size + size*0.5 - 2), 25)
        pygame.draw.circle(gameDisplay, black, (x*size + size*0.5 - 2, y*size + size*0.5 - 2), 25, 5)

    # [...]

典型的PyGame应用程序循环必须：

限制每秒的帧使用pygame.time.Clock.tick

• handle事件通过调用pygame.event.pump()或pygame.event.get().

• update (取决于输入事件和时间的对象的游戏状态和位置)来限制CPU的使用(分别frames)

• clear整个显示或绘制整个场景(blit all objects)

• update objects)

• update通过调用pygame.display.update()或pygame.display.flip()

)