我想知道如何编写代码来检测鼠标点击精灵的操作。例如:
if #Function that checks for mouse clicked on Sprite:
print ("You have opened a chest!")
if #Function that checks for mouse clicked on Sprite:
print ("You have opened a chest!")
while ... # your main loop
# get all events
ev = pygame.event.get()
# proceed events
for event in ev:
# handle MOUSEBUTTONUP
if event.type == pygame.MOUSEBUTTONUP:
pos = pygame.mouse.get_pos()
# get a list of all sprites that are under the mouse cursor
clicked_sprites = [s for s in sprites if s.rect.collidepoint(pos)]
# do something with the clicked sprites...
if pygame.mouse.get_pressed()[0] and mysprite.rect.collidepoint(pygame.mouse.get_pos()):
print ("You have opened a chest!")
handled = False
while ... // your loop
if pygame.mouse.get_pressed()[0] and mysprite.rect.collidepoint(pygame.mouse.get_pos()) and not handled:
print ("You have opened a chest!")
handled = pygame.mouse.get_pressed()[0]
Sprite
并添加一个名为 is_clicked
的方法,如下所示:class MySprite(Sprite):
...
def is_clicked(self):
return pygame.mouse.get_pressed()[0] and self.rect.collidepoint(pygame.mouse.get_pos())
MOUSEBUTTONDOWN
事件在单击鼠标按钮时发生,MOUSEBUTTONUP
事件在释放鼠标按钮时发生。pygame.event.Event()
对象具有两个属性,提供关于鼠标事件的信息。 pos
是一个存储被单击位置的元组。 button
存储被单击的按钮。每个鼠标按钮都与一个值相关联。例如,左鼠标按钮、中间鼠标按钮、右鼠标按钮、鼠标滚轮向上和向下的属性值分别为1、2、3、4、5。当多个键被按下时,会发生多个鼠标按钮事件。更多解释可以在模块pygame.event
的文档中找到。pygame.sprite.Sprite
对象的rect
属性和collidepoint
方法来查看是否单击了Sprite。
将事件列表传递给pygame.sprite.Group
的update
方法,以便您可以在Sprite类中处理事件。class SpriteObject(pygame.sprite.Sprite):
# [...]
def update(self, event_list):
for event in event_list:
if event.type == pygame.MOUSEBUTTONDOWN:
if self.rect.collidepoint(event.pos):
# [...]
my_sprite = SpriteObject()
group = pygame.sprite.Group(my_sprite)
# [...]
run = True
while run:
event_list = pygame.event.get()
for event in event_list:
if event.type == pygame.QUIT:
run = False
group.update(event_list)
# [...]
最简单的例子: repl.it/@Rabbid76/PyGame-MouseClick
import pygame
class SpriteObject(pygame.sprite.Sprite):
def __init__(self, x, y, color):
super().__init__()
self.original_image = pygame.Surface((50, 50), pygame.SRCALPHA)
pygame.draw.circle(self.original_image, color, (25, 25), 25)
self.click_image = pygame.Surface((50, 50), pygame.SRCALPHA)
pygame.draw.circle(self.click_image, color, (25, 25), 25)
pygame.draw.circle(self.click_image, (255, 255, 255), (25, 25), 25, 4)
self.image = self.original_image
self.rect = self.image.get_rect(center = (x, y))
self.clicked = False
def update(self, event_list):
for event in event_list:
if event.type == pygame.MOUSEBUTTONDOWN:
if self.rect.collidepoint(event.pos):
self.clicked = not self.clicked
self.image = self.click_image if self.clicked else self.original_image
pygame.init()
window = pygame.display.set_mode((300, 300))
clock = pygame.time.Clock()
sprite_object = SpriteObject(*window.get_rect().center, (128, 128, 0))
group = pygame.sprite.Group([
SpriteObject(window.get_width() // 3, window.get_height() // 3, (128, 0, 0)),
SpriteObject(window.get_width() * 2 // 3, window.get_height() // 3, (0, 128, 0)),
SpriteObject(window.get_width() // 3, window.get_height() * 2 // 3, (0, 0, 128)),
SpriteObject(window.get_width() * 2// 3, window.get_height() * 2 // 3, (128, 128, 0)),
])
run = True
while run:
clock.tick(60)
event_list = pygame.event.get()
for event in event_list:
if event.type == pygame.QUIT:
run = False
group.update(event_list)
window.fill(0)
group.draw(window)
pygame.display.flip()
pygame.quit()
exit()
进一步了解:在Pygame中使用同一个精灵类创建具有不同update()的多个精灵
pygame.mouse.get_pos()
确定。返回值是一个元组,表示鼠标光标的x和y坐标。pygame.mouse.get_pressed()
返回一个布尔值列表,表示所有鼠标按钮的状态(True
或False
)。只要按下按钮,按钮的状态就是True
。当多个按钮被按下时,列表中的多个项是True
。列表中的第1、2和3个元素分别表示左、中和右鼠标按钮。pygame.sprite.Sprite
对象的Update
方法中检测和评估鼠标状态:class SpriteObject(pygame.sprite.Sprite):
# [...]
def update(self, event_list):
mouse_pos = pygame.mouse.get_pos()
mouse_buttons = pygame.mouse.get_pressed()
if self.rect.collidepoint(mouse_pos) and any(mouse_buttons):
# [...]
my_sprite = SpriteObject()
group = pygame.sprite.Group(my_sprite)
# [...]
run = True
while run:
for event in pygame.event.get():
if event.type == pygame.QUIT:
run = False
group.update(event_list)
# [...]
最简示例: repl.it/@Rabbid76/PyGame-MouseHover
import pygame
class SpriteObject(pygame.sprite.Sprite):
def __init__(self, x, y, color):
super().__init__()
self.original_image = pygame.Surface((50, 50), pygame.SRCALPHA)
pygame.draw.circle(self.original_image, color, (25, 25), 25)
self.hover_image = pygame.Surface((50, 50), pygame.SRCALPHA)
pygame.draw.circle(self.hover_image, color, (25, 25), 25)
pygame.draw.circle(self.hover_image, (255, 255, 255), (25, 25), 25, 4)
self.image = self.original_image
self.rect = self.image.get_rect(center = (x, y))
self.hover = False
def update(self):
mouse_pos = pygame.mouse.get_pos()
mouse_buttons = pygame.mouse.get_pressed()
#self.hover = self.rect.collidepoint(mouse_pos)
self.hover = self.rect.collidepoint(mouse_pos) and any(mouse_buttons)
self.image = self.hover_image if self.hover else self.original_image
pygame.init()
window = pygame.display.set_mode((300, 300))
clock = pygame.time.Clock()
sprite_object = SpriteObject(*window.get_rect().center, (128, 128, 0))
group = pygame.sprite.Group([
SpriteObject(window.get_width() // 3, window.get_height() // 3, (128, 0, 0)),
SpriteObject(window.get_width() * 2 // 3, window.get_height() // 3, (0, 128, 0)),
SpriteObject(window.get_width() // 3, window.get_height() * 2 // 3, (0, 0, 128)),
SpriteObject(window.get_width() * 2// 3, window.get_height() * 2 // 3, (128, 128, 0)),
])
run = True
while run:
clock.tick(60)
for event in pygame.event.get():
if event.type == pygame.QUIT:
run = False
group.update()
window.fill(0)
group.draw(window)
pygame.display.flip()
pygame.quit()
exit()
你可以使用pygame.mouse.get_pressed
方法,与pygame.mouse.get_pos
方法一起协作使用(如果需要)。
记得通过主事件循环使用鼠标单击事件。事件循环更好的原因是“短点击”。您可能在普通计算机上注意不到这一点,但是使用触摸板进行轻敲点击的计算机存在过于短的点击时间。使用鼠标事件将防止出现此类问题。
编辑:
要执行像素完美的碰撞,请使用精灵文档中找到的pygame.sprite.collide_rect()
方法。
我也在寻找同样的答案,经过反复琢磨,我得出了以下答案:
# Python 3.4.3 with Pygame
from sys import exit
import pygame
pygame.init()
WIDTH = HEIGHT = 300
window = pygame.display.set_mode((WIDTH, HEIGHT))
pygame.display.set_caption('Crash!')
# Draw Once
rectangle = pygame.draw.rect(window, (255, 0, 0), (100, 100, 100, 100))
pygame.display.update()
# Main Loop
while True:
# Mouse position and button clicking
pos = pygame.mouse.get_pos()
pressed1 = pygame.mouse.get_pressed()[0]
# Check if rectangle collided with pos and if the left mouse button was pressed
if rectangle.collidepoint(pos) and pressed1:
print("You have opened a chest!")
# Quit pygame
for event in pygame.event.get():
if event.type == pygame.QUIT:
pygame.quit()
exit()
event.pos
下获得。 - Nicu Surduevent.pos
获取鼠标位置,而不是mouse.get_pos
。一些操作系统允许鼠标在实际点击和事件被应用程序处理之间稍微移动。此外,单元测试中的点击可能不是来自鼠标。 - Героям слава