Python Pygame:我如何让自己的形象下降?
我试图让物体像在地球上一样下落。我已经把它们放到了我想要的地方,但我似乎无法让它们动起来 这就是我想坠落的物体Python Pygame:我如何让自己的形象下降?,python,animation,pygame,gravity,Python,Animation,Pygame,Gravity,我试图让物体像在地球上一样下落。我已经把它们放到了我想要的地方,但我似乎无法让它们动起来 这就是我想坠落的物体 import pygame class circle(): def __init__(self, screen): planet_color = (255,0,0) planet_radius = 20 self.screen = screen ev = pygame.event.get()
import pygame
class circle():
def __init__(self, screen):
planet_color = (255,0,0)
planet_radius = 20
self.screen = screen
ev = pygame.event.get()
self.image = pygame.image.load('../images/jupiter.bmp')
self.image = pygame.transform.scale(self.image, (80, 80))
def blitme(self):
self.x = pygame.mouse.get_pos()
self.rect = self.image.get_rect()
self.rect.center = self.x
self.screen.blit(self.image, self.rect)
这就是运行它的代码。当鼠标被点击时,点击鼠标的地方就会出现一张木星的小照片。我怎样才能让这张照片掉下来
import pygame
import gravfunc as gf
from gravfunc import circle
import sys
def run_game():
screen_height = 670
screen_width = 1270
pygame.init()
screen = pygame.display.set_mode((screen_width, screen_height))
screen.fill((10,10,30))
running = True
circ = circle(screen)
while running:
for event in pygame.event.get():
if event.type == pygame.QUIT:
sys.exit()
elif event.type == pygame.KEYDOWN:
if event.key == pygame.K_q:
sys.exit()
elif event.type == pygame.MOUSEBUTTONDOWN:
circ.blitme()
pygame.display.flip()
run_game()
为你的类指定一个
self.speed_y
属性,并在每一帧中添加GRAVITY
,以加速对象。我还添加了一个self.pos_y
属性,因为pygame.Rect
s不能将浮点数作为坐标。所以
self.pos\u y
)self.pos_y
分配给self.rect.y
pygame.sprite.sprite
)。然后,您可以将所有圆添加到pygame.sprite.Group
中,并通过调用sprite\u Group.update()
和sprite\u grop.draw(屏幕)
来更新和绘制它们
这是一个例子。
import pygame
GRAVITY = .2 # Pretty low gravity.
class Circle(pygame.sprite.Sprite):
def __init__(self, pos, screen):
super().__init__()
self.screen = screen
self.image = pygame.Surface((80, 80), pygame.SRCALPHA)
pygame.draw.circle(self.image, (30, 90, 150), (40, 40), 40)
self.rect = self.image.get_rect(center=pos)
self.pos_y = pos[1]
self.speed_y = 0
def update(self):
self.speed_y += GRAVITY
self.pos_y += self.speed_y
self.rect.y = self.pos_y
if self.pos_y > self.screen.get_height():
self.kill() # Remove off-screen circles.
def run_game():
pygame.init()
screen = pygame.display.set_mode((1270, 670))
clock = pygame.time.Clock()
running = True
circles = pygame.sprite.Group(Circle((600, 0), screen))
while running:
for event in pygame.event.get():
if event.type == pygame.QUIT:
return
elif event.type == pygame.MOUSEBUTTONDOWN:
circles.add(Circle(event.pos, screen))
circles.update()
screen.fill((10, 10, 30))
circles.draw(screen)
pygame.display.flip()
clock.tick(60)
run_game()
pygame.quit()