python - 如何用键盘旋转图像?
问题描述
img1 = pygame.image.load(r"C:\Users\ga-sa\Downloads\As.png")
img2 = pygame.image.load(r"C:\Users\ga-sa\Downloads\AssetsXOR.png")
img3 = pygame.image.load(r"C:\Users\ga-sa\Downloads\AssetsNOT.png")
img4 = pygame.image.load(r"C:\Users\ga-sa\Downloads\AssetsAND.png")
background = pygame.image.load(r'C:\Users\ga-sa\Downloads\honeycomb.png')
images = [img1, img2, img3, 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, 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.blit(background,(0,0))
for i in range(len(images)):
screen.blit(images[i], img_rects[i])
pygame.display.flip()
pygame.time.delay(30)
pygame.display.fli()
pygame.display.update()
mainClock.tick(60)
我只是想旋转这个图像键盘,但不知道我该怎么做有人可以帮助我,完整的代码在这里 https://pastebin.com/Rb7jh2GH
解决方案
添加一个angle
变量。用于pygame.key.get_pressed()
获取键的状态(请参阅按住键时如何进行精灵移动)。根据按下的键更改angle
依赖项:
keys = pygame.key.get_pressed()
if keys[pygame.K_RIGHT]:
angle -= 1
if keys[pygame.K_LEFT]:
angle += 1
用于pygame.transform.rotate
旋转图像。请参阅如何使用 PyGame 围绕其中心旋转图像?:
for i in range(len(images)):
rotated_image = pygame.transform.rotate(images[i], angle)
rotated_rect = rotated_image.get_rect(center = img_rects[i].center)
screen.blit(rotated_image, rotated_rect)
如果您只想旋转current_image
,则需要角度列表
current_image = -1
img_rects = [images[i].get_rect(topleft=(20 + 40 * i, 20)) for i in range(len(images))]
img_angles = [0 for _ 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, 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]
keys = pygame.key.get_pressed()
if 0 <= current_image < len(img_angles):
if keys[pygame.K_RIGHT]:
img_angles[current_image] -= 1
if keys[pygame.K_LEFT]:
img_angles[current_image] += 1
screen.blit(background,(0,0))
for i in range(len(images)):
rotated_image = pygame.transform.rotate(images[i], img_angles[i])
rotated_rect = rotated_image.get_rect(center = img_rects[i].center)
screen.blit(rotated_image, rotated_rect)
pygame.display.flip()
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