如何解决如何在PyGame中拖动2张以上的图像?
import pygame
from pygame.locals import *
pygame.display.init()
screen = pygame.display.set_mode((1143,677 ))
img = pygame.image.load(r"C:\Users\ga-sa\Downloads\As.png")
img1 = pygame.image.load(r"C:\Users\ga-sa\Downloads\03.png")
imgPos = img.get_rect(topleft = (20,20))
imgPos1 = img1.get_rect(topleft = (60,20))
current_image = None
LeftButton = 0
while 1:
for e in pygame.event.get():
if e.type == QUIT:
pygame.quit()
exit(0)
if e.type == pygame.MOUSEBUTTONDOWN:
if imgPos.collidepoint(e.pos):
current_image = 0
elif imgPos1.collidepoint(e.pos):
current_image = 1
else:
current_image = None
if e.type == MOUSEMOTION:
if e.buttons[LeftButton]:
rel = e.rel
if current_image == 0:
imgPos.x += rel[0]
imgPos.y += rel[1]
elif current_image == 1:
imgPos1.x += rel[0]
imgPos1.y += rel[1]
screen.fill(0)
screen.blit(img,imgPos)
screen.blit (img1,imgPos1)
pygame.display.flip()
pygame.time.delay(30)
所以这是我的代码,我想放4张图片,而不是只放两张图片,我想放更多图片,但是是布尔值,所以是0或1
解决方法
创建4张图片的列表:
images = [img1,img2,img3,img4]
创建图像矩形列表:
img_rects = [images[i].get_rect(topleft = (20+40*i,20)) for i in range(len(images))]
使用pygame.Rect.collidelist
查找被点击的图像:
if e.type == pygame.MOUSEBUTTONDOWN:
mouse_rect = pygame.Rect(e.pos,(1,1))
current_image = mouse_rect.collidelist(img_rects)
绘制current_image
:
if e.type == MOUSEMOTION:
if e.buttons[LeftButton]:
rel = e.rel
if 0 <= current_image < len(images):
img_rects[current_image].x += rel[0]
img_rects[current_image].y += rel[1]
循环绘制图像:
for i in range(len(images)):
screen.blit(imgages[i],img_rects[i])
最小示例:
import pygame
from pygame.locals import *
pygame.display.init()
screen = pygame.display.set_mode((1143,677))
img1 = pygame.image.load(r"C:\Users\ga-sa\Downloads\As.png")
img2 = pygame.image.load(r"C:\Users\ga-sa\Downloads\03.png")
img3 = pygame.image.load(r"C:\Users\ga-sa\Downloads\As.png")
img4 = pygame.image.load(r"C:\Users\ga-sa\Downloads\03.png")
images = [img1,img4]
current_image = -1
img_rects = [images[i].get_rect(topleft = (20+40*i,20)) for i in range(len(images))]
LeftButton = 0
while 1:
for e in pygame.event.get():
if e.type == QUIT:
pygame.quit()
exit(0)
if e.type == pygame.MOUSEBUTTONDOWN:
mouse_rect = pygame.Rect(e.pos,1))
current_image = mouse_rect.collidelist(img_rects)
if e.type == MOUSEMOTION:
if e.buttons[LeftButton]:
rel = e.rel
if 0 <= current_image < len(images):
img_rects[current_image].x += rel[0]
img_rects[current_image].y += rel[1]
screen.fill(0)
for i in range(len(images)):
screen.blit(images[i],img_rects[i])
pygame.display.flip()
pygame.time.delay(30)
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