使用 pygame 模块,我在屏幕上绘制了一个黑色矩形。当我将鼠标悬停在矩形上时,我编写了一个代码,通过在矩形周围绘制另一个(绿色)矩形(宽度 = 4)来“突出显示”矩形。它可以工作,但前提是鼠标在它上面移动。如果它静止在黑色矩形的表面上,则不会出现绿色矩形。这是我的代码:
import random, pygame, sys
from pygame.locals import *
pygame.init()
done = False
clock = pygame.time.Clock()
white = (255,255,255) # COLLORS
black = (0,0,0)
red = (255,0,0)
green = (0,100,0)
display_width = 800 # SCREEN DIMMENSION
display_height = 600
game_display = pygame.display.set_mode((display_width,display_height)) # SCREEN
def draw_rect(x,y):
rect = pygame.Rect(x, y, 40, 40)
pygame.draw.rect(game_display, black, rect)
if rect.collidepoint(mousex,mousey):
box_hightlight(x,y)
def box_hightlight(x,y):
pygame.draw.rect(game_display,green,(x-5,y-5,50,50),4)
while done != True:
x = (display_width - 40) / 2
y = (display_height - 40) / 2
mousex = 0 # used to store x coordinate of mouse event
mousey = 0 # used to store y coordinate of mouse event
for event in pygame.event.get(): # PRESSED KEYS EFFECTS
if event.type == pygame.QUIT:
done = True
elif event.type == MOUSEMOTION :
mousex, mousey = event.pos
elif event.type == MOUSEBUTTONUP:
mousex, mousey = event.pos
mouseClicked = True
game_display.fill(white)
draw_rect(x,y)
pygame.display.update()
clock.tick(60)
我错过了什么?