[英]How do I get pygame collisions to work
我正在制作一只飛揚的小鳥副本,但無法獲得碰撞機制。 目前,我正在嘗試使用.coliderect()
但我不確定100%如何使用。 這是兩個類。 我希望程序做些什么,或者當鳥和管道發生碰撞時只執行print('x')
,但是當它們此時發生碰撞時,該程序不執行任何操作或不輸出任何東西。
import pygame
vec = pygame.math.Vector2
BLACK = (0,0,0)
WIDTH = 500
HEIGHT = 400
pygame.init()
window = pygame.display.set_mode((WIDTH, HEIGHT))
pygame.display.set_caption('Flappy Bird')
clock = pygame.time.Clock()
class Bird():
def __init__(self):
self.skin = pygame.image.load('bird2.png')
self.rect = self.skin.get_rect()
self.rect.center = (WIDTH / 2, HEIGHT / 2)
self.vx = 0
self.vy = 0
self.pos = vec(WIDTH / 2, HEIGHT / 2)
self.vel = vec(0, 0)
self.acc = vec(0, 0)
def update(self):
for event in pygame.event.get():
if event.type == pygame.QUIT:
pygame.quit()
quit()
window.fill(BLACK)
self.acc = vec(0, 0.7) #having 0.5 adds gravity
self.vy = 0
keys = pygame.key.get_pressed()
if keys[pygame.K_SPACE]:
self.vel.y = -7
if keys[pygame.K_LEFT]:
self.acc.x = -0.5 #change to y to add vertical motion
if keys[pygame.K_RIGHT]:
self.acc.x = 0.5 #change to y to add vertical motion
#applys friction
self.acc.x += self.vel.x * -0.08 #FRICTION
#motion equations
self.vel += self.acc
self.pos += self.vel + 0.5 * self.acc
self.rect.center = self.pos
window.blit(self.skin, self.pos)
class Pipe():
def __init__(self,x,y):
self.image = pygame.Surface((50,60))
self.image.fill(RED)
self.rect = self.image.get_rect()
self.pos = vec(x,y)
def blit_pipe(self):
window.blit(self.image, self.pos)
def border_check():
if (flappy.pos.y)+32 > HEIGHT: #this is the very top of the flappy
print("You are under\n")
pygame.quit()
quit()
if flappy.pos.y < 0:
print("You are over\n") #this is the very top of the flappy
pygame.quit()
quit()
pipey = Pipe(300,200)
pipey.blit_pipe()
pipey2 = Pipe(100,200)
pipey2.blit_pipe()
flappy = Bird()
window.blit(flappy.skin, flappy.pos)
while True:
border_check()
flappy.update()
pipey.blit_pipe()
pipey2.blit_pipe()
if flappy.rect.colliderect(pipey.rect):
print('x')
clock.tick(30)
pygame.display.update()
您永遠不會設置Pipe
實例的rect
的位置,因此它們仍位於默認坐標(0, 0)
。 有多種設置坐標的方法,例如,您可以將坐標作為topleft
參數傳遞給get_rect
。
self.rect = self.image.get_rect(topleft=(x, y))
如果碰撞檢測出了問題,請打印區域以查看實際位置。
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