从 Pygame 中的同一个 Sprite class 拖动多个具有不同 "update ()" 方法的 Sprite
Drag multiple sprites with different "update ()" methods from the same Sprite class in Pygame
我正在尝试制作多个精灵，它们都来自同一个 pygame 精灵 class。
class animatedSprites(pygame.sprite.Sprite):
def __init__(self, spriteName):
pygame.sprite.Sprite.__init__(self)
self.image = pygame.Surface((width,height))
self.images = []
self.images.append(spriteName[0])
self.rect = self.image.get_rect() #sets sprites size and pos
self.rect.center = (POSITIONx1[4], POSITIONy1[4])
self.animation_frames = 12
self.current_frame = 0
self.previous_positiony = self.rect.y
self.previous_positionx = self.rect.x
def update(self):
global MOUSEPRESSED
if (MOUSEPRESSED == 1):
self.rect = self.image.get_rect()
self.rect.y = POSITIONy1[get_square_under_mousey()] - 25
self.rect.x = POSITIONx1[get_square_under_mousex()] - 25
if (MOUSEPRESSED == 2):
if collide(plant, bought2):
self.rect.y = self.previous_positiony
self.rect.x = self.previous_positionx
else:
self.rect = self.image.get_rect()
self.rect.y = POSITIONy1[get_square_under_mousey()] + 35#pulled x and y pos from func
self.rect.x = POSITIONx1[get_square_under_mousex()] - 25
self.previous_positiony = self.rect.y
self.previous_positionx = self.rect.x
MOUSEPRESSED = 0
我使用这个 class 在屏幕上创建一个精灵，然后使用 def update() 来控制精灵。精灵的控制方式是，当用户点击精灵时，他们可以用鼠标拖动它，并将它移动到屏幕上任何他们喜欢的地方。问题是，如果我使用此 class 创建第二个精灵并在屏幕上同时显示两个精灵，当用户“拿起”一个精灵时，它们都会移动到鼠标位置。我只想根据点击的是哪一个移动。
我假设他们都在移动到相同的位置，因为他们都使用相同的 def update() 来决定他们的移动，所以我的问题是，pygame 或 python 让被点击的人移动而不是同时移动，而不创建第二个
class animatedSprites(pygame.sprite.Sprite): 成功。我想同时在屏幕上显示多个精灵，但不想制作数十个单独的 classes 和 update() defs 来分别控制每个精灵。
抱歉，如果这没有意义，我是 python 和 pygame 的初学者。
对于精灵管理，一个Sprite Group会帮助你。
所以在设置过程中，执行如下操作：
all_sprites = pygame.sprite.Group()
# create five initial sprites
for number in range(5):
new_sprite = animatedSprites(f"Sprite {number}")
all_sprites.add(new_sprite)
然后在您的事件处理过程中：
for event in pygame.event.get():
if event.type == pygame.QUIT:
# set termination condition here
…
elif event.type == pygame.MOUSEBUTTONDOWN:
# use the click position in the name
new_sprite = animatedSprites(f"Sprite X: {event.pos[0]} Y: {event.pos[1]}")
all_sprites.add(new_sprite)
处理事件后：
# update game state
all_sprites.update()
# draw background
…
# draw sprites
all_sprites.draw()
# update display
pygame.display.update()
我建议创建一个可以拖动 pygame.Rect 对象的 class DragOperator:
class DragOperator:
def __init__(self, sprite):
self.sprite = sprite
self.dragging = False
self.rel_pos = (0, 0)
def update(self, event_list):
for event in event_list:
if event.type == pygame.MOUSEBUTTONDOWN:
self.dragging = self.sprite.rect.collidepoint(event.pos)
self.rel_pos = event.pos[0] - self.sprite.rect.x, event.pos[1] - self.sprite.rect.y
if event.type == pygame.MOUSEBUTTONUP:
self.dragging = False
if event.type == pygame.MOUSEMOTION and self.dragging:
self.sprite.rect.topleft = event.pos[0] - self.rel_pos[0], event.pos[1] - self.rel_pos[1]
矩形的拖动是在update方法中实现的。在 pygame.sprite.Sprite 对象中使用此 class。将事件列表传递给 Sprite 的 update 方法并将其委托给拖动运算符：
class animatedSprites(pygame.sprite.Sprite):
def __init__(self, spriteName):
# [...]
self.drag = DragOperator(self)
def update(self, event_list):
self.drag.update(event_list)
将事件列表从主应用程序循环传递到 pygame.sprite.Group:
all_sprites = pygame.sprite.Group()
all_sprites.add(animatedSprites("my_sprite"))
run = True
while run:
event_list = pygame.event.get()
for event in event_list:
if event.type == pygame.QUIT:
run = False
all_sprites.update(event_list)
# [...]
最小示例： repl.it/@Rabbid76/PyGame-MouseDrag
import pygame
class DragOperator:
def __init__(self, sprite):
self.sprite = sprite
self.dragging = False
self.rel_pos = (0, 0)
def update(self, event_list):
for event in event_list:
if event.type == pygame.MOUSEBUTTONDOWN:
self.dragging = self.sprite.rect.collidepoint(event.pos)
self.rel_pos = event.pos[0] - self.sprite.rect.x, event.pos[1] - self.sprite.rect.y
if event.type == pygame.MOUSEBUTTONUP:
self.dragging = False
if event.type == pygame.MOUSEMOTION and self.dragging:
self.sprite.rect.topleft = event.pos[0] - self.rel_pos[0], event.pos[1] - self.rel_pos[1]
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.drag_image = pygame.Surface((50, 50), pygame.SRCALPHA)
pygame.draw.circle(self.drag_image, color, (25, 25), 25)
pygame.draw.circle(self.drag_image, (255, 255, 255), (25, 25), 25, 4)
self.image = self.original_image
self.rect = self.image.get_rect(center = (x, y))
self.drag = DragOperator(self)
def update(self, event_list):
self.drag.update(event_list)
self.image = self.drag_image if self.drag.dragging else self.original_image
pygame.init()
window = pygame.display.set_mode((300, 300))
clock = pygame.time.Clock()
sprite_object = SpriteObject(*window.get_rect().center, (255, 255, 0))
group = pygame.sprite.Group([
SpriteObject(window.get_width() // 3, window.get_height() // 3, (255, 0, 0)),
SpriteObject(window.get_width() * 2 // 3, window.get_height() // 3, (0, 255, 0)),
SpriteObject(window.get_width() // 3, window.get_height() * 2 // 3, (0, 0, 255)),
SpriteObject(window.get_width() * 2// 3, window.get_height() * 2 // 3, (255, 255, 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()
我正在尝试制作多个精灵，它们都来自同一个 pygame 精灵 class。
class animatedSprites(pygame.sprite.Sprite):
def __init__(self, spriteName):
pygame.sprite.Sprite.__init__(self)
self.image = pygame.Surface((width,height))
self.images = []
self.images.append(spriteName[0])
self.rect = self.image.get_rect() #sets sprites size and pos
self.rect.center = (POSITIONx1[4], POSITIONy1[4])
self.animation_frames = 12
self.current_frame = 0
self.previous_positiony = self.rect.y
self.previous_positionx = self.rect.x
def update(self):
global MOUSEPRESSED
if (MOUSEPRESSED == 1):
self.rect = self.image.get_rect()
self.rect.y = POSITIONy1[get_square_under_mousey()] - 25
self.rect.x = POSITIONx1[get_square_under_mousex()] - 25
if (MOUSEPRESSED == 2):
if collide(plant, bought2):
self.rect.y = self.previous_positiony
self.rect.x = self.previous_positionx
else:
self.rect = self.image.get_rect()
self.rect.y = POSITIONy1[get_square_under_mousey()] + 35#pulled x and y pos from func
self.rect.x = POSITIONx1[get_square_under_mousex()] - 25
self.previous_positiony = self.rect.y
self.previous_positionx = self.rect.x
MOUSEPRESSED = 0
我使用这个 class 在屏幕上创建一个精灵，然后使用 def update() 来控制精灵。精灵的控制方式是，当用户点击精灵时，他们可以用鼠标拖动它，并将它移动到屏幕上任何他们喜欢的地方。问题是，如果我使用此 class 创建第二个精灵并在屏幕上同时显示两个精灵，当用户“拿起”一个精灵时，它们都会移动到鼠标位置。我只想根据点击的是哪一个移动。
我假设他们都在移动到相同的位置，因为他们都使用相同的 def update() 来决定他们的移动，所以我的问题是，pygame 或 python 让被点击的人移动而不是同时移动，而不创建第二个
class animatedSprites(pygame.sprite.Sprite): 成功。我想同时在屏幕上显示多个精灵，但不想制作数十个单独的 classes 和 update() defs 来分别控制每个精灵。
抱歉，如果这没有意义，我是 python 和 pygame 的初学者。
对于精灵管理，一个Sprite Group会帮助你。
所以在设置过程中，执行如下操作：
all_sprites = pygame.sprite.Group()
# create five initial sprites
for number in range(5):
new_sprite = animatedSprites(f"Sprite {number}")
all_sprites.add(new_sprite)
然后在您的事件处理过程中：
for event in pygame.event.get():
if event.type == pygame.QUIT:
# set termination condition here
…
elif event.type == pygame.MOUSEBUTTONDOWN:
# use the click position in the name
new_sprite = animatedSprites(f"Sprite X: {event.pos[0]} Y: {event.pos[1]}")
all_sprites.add(new_sprite)
处理事件后：
# update game state
all_sprites.update()
# draw background
…
# draw sprites
all_sprites.draw()
# update display
pygame.display.update()
我建议创建一个可以拖动 pygame.Rect 对象的 class DragOperator:
class DragOperator:
def __init__(self, sprite):
self.sprite = sprite
self.dragging = False
self.rel_pos = (0, 0)
def update(self, event_list):
for event in event_list:
if event.type == pygame.MOUSEBUTTONDOWN:
self.dragging = self.sprite.rect.collidepoint(event.pos)
self.rel_pos = event.pos[0] - self.sprite.rect.x, event.pos[1] - self.sprite.rect.y
if event.type == pygame.MOUSEBUTTONUP:
self.dragging = False
if event.type == pygame.MOUSEMOTION and self.dragging:
self.sprite.rect.topleft = event.pos[0] - self.rel_pos[0], event.pos[1] - self.rel_pos[1]
矩形的拖动是在update方法中实现的。在 pygame.sprite.Sprite 对象中使用此 class。将事件列表传递给 Sprite 的 update 方法并将其委托给拖动运算符：
class animatedSprites(pygame.sprite.Sprite):
def __init__(self, spriteName):
# [...]
self.drag = DragOperator(self)
def update(self, event_list):
self.drag.update(event_list)
将事件列表从主应用程序循环传递到 pygame.sprite.Group:
all_sprites = pygame.sprite.Group()
all_sprites.add(animatedSprites("my_sprite"))
run = True
while run:
event_list = pygame.event.get()
for event in event_list:
if event.type == pygame.QUIT:
run = False
all_sprites.update(event_list)
# [...]
最小示例：
import pygame
class DragOperator:
def __init__(self, sprite):
self.sprite = sprite
self.dragging = False
self.rel_pos = (0, 0)
def update(self, event_list):
for event in event_list:
if event.type == pygame.MOUSEBUTTONDOWN:
self.dragging = self.sprite.rect.collidepoint(event.pos)
self.rel_pos = event.pos[0] - self.sprite.rect.x, event.pos[1] - self.sprite.rect.y
if event.type == pygame.MOUSEBUTTONUP:
self.dragging = False
if event.type == pygame.MOUSEMOTION and self.dragging:
self.sprite.rect.topleft = event.pos[0] - self.rel_pos[0], event.pos[1] - self.rel_pos[1]
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.drag_image = pygame.Surface((50, 50), pygame.SRCALPHA)
pygame.draw.circle(self.drag_image, color, (25, 25), 25)
pygame.draw.circle(self.drag_image, (255, 255, 255), (25, 25), 25, 4)
self.image = self.original_image
self.rect = self.image.get_rect(center = (x, y))
self.drag = DragOperator(self)
def update(self, event_list):
self.drag.update(event_list)
self.image = self.drag_image if self.drag.dragging else self.original_image
pygame.init()
window = pygame.display.set_mode((300, 300))
clock = pygame.time.Clock()
sprite_object = SpriteObject(*window.get_rect().center, (255, 255, 0))
group = pygame.sprite.Group([
SpriteObject(window.get_width() // 3, window.get_height() // 3, (255, 0, 0)),
SpriteObject(window.get_width() * 2 // 3, window.get_height() // 3, (0, 255, 0)),
SpriteObject(window.get_width() // 3, window.get_height() * 2 // 3, (0, 0, 255)),
SpriteObject(window.get_width() * 2// 3, window.get_height() * 2 // 3, (255, 255, 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()