[英]Collision Detection Issue in pygame
我有一款游戲,用戶可以使用箭頭鍵移動玩家(“ mrhinckleberg”)。 還有兩個“敵人”會自動上下反彈。
現在如何檢測玩家與敵人之間的碰撞?
這是我到目前為止的代碼:
import pygame
import time
pygame.init()
window = pygame.display.set_mode((800,800))
pygame.display.set_caption("Yues")
theboard = pygame.image.load('theboard.png')
enemy = pygame.image.load('mrenemy.png')
mrhinckleberg = pygame.image.load('MrHinckleBerg.png')
mrhincklebergdead = pygame.image.load('MrHinckleBergdead.png')
deathscreen = pygame.image.load('deathscreen.png')
black = (0,0,0)
clock1 = pygame.time.Clock()
def quitt():
pygame.quit()
quit()
playerx = 750
playery = 450
enemydirection = 'down'
enemyx = 500
enemyy = 50
enemyspeed = 100
enemydirection2 = 'up'
enemyx2 = 350
enemyy2 = 750
enemyspeed2 = 50
enemydirection3 = 'down'
enemyx3 = 200
enemyy3 = 50
enemyspeed3 = 150
while True:
window.blit(theboard, (0,0))
if enemydirection == 'down':
enemyy += enemyspeed
if enemyy >= 790:
enemydirection = 'up'
elif enemydirection == 'up':
enemyy -= enemyspeed
if enemyy <= 10:
enemydirection = 'down'
if enemydirection2 == 'up':
enemyy2 -= enemyspeed2
if enemyy2 <= 10:
enemydirection2 = 'down'
elif enemydirection2 == 'down':
enemyy2 += enemyspeed2
if enemyy2 >= 790:
enemydirection2 = 'up'
for event in pygame.event.get():
if event.type == pygame.QUIT:
quitt()
if event.type == pygame.KEYDOWN:
if event.key == pygame.K_RIGHT:
playerx += 12
elif event.key == pygame.K_LEFT:
playerx -= 12
elif event.key == pygame.K_UP:
playery -= 12
elif event.key == pygame.K_DOWN:
playery += 12
if playerx == enemyx and playery == enemyy:
print("hai")
window.blit(theboard, (0,0))
window.blit(mrhinckleberg, (playerx,playery))
window.blit(enemy, (enemyx,enemyy))
window.blit(enemy, (enemyx2,enemyy2))
window.blit(enemy, (enemyx3,enemyy3))
pygame.display.update()
在我的觀點中,問題是您檢查例如變量playerx
是否等於 enemyx
,但這永遠不會成立,因為您僅以特定的間隔(增加或減去12)更改了enemyx
變量。
為避免這種情況,您可以檢查playerx
/ playery
和enemyx
/ enemyy
是否在**一定范圍內**:
if (playerx <= enemyx <= playerx + playerWidth) and \
(playery <= enemyy <= playery + playerHeight):
print("hai")
請注意,在Python中,比較可以被鏈接。 這意味着5 < x <= 10
等於5 < x and x <= 10
。 有關更多信息,請參見內置類型->比較 。
更新的代碼:
import pygame
import time
pygame.init()
window = pygame.display.set_mode((800,800))
pygame.display.set_caption("Yues")
theboard = pygame.image.load('theboard.png')
enemy = pygame.image.load('mrenemy.png')
mrhinckleberg = pygame.image.load('MrHinckleBerg.png')
mrhincklebergdead = pygame.image.load('MrHinckleBergdead.png')
deathscreen = pygame.image.load('deathscreen.png')
playerWidth = mrhinckleberg.get_rect().width
playerHeight = mrhinckleberg.get_rect().height
black = (0,0,0)
clock1 = pygame.time.Clock()
def quitt():
pygame.quit()
quit()
playerx = 750
playery = 450
enemydirection = 'down'
enemyx = 500
enemyy = 50
enemyspeed = 3
enemydirection2 = 'up'
enemyx2 = 350
enemyy2 = 750
enemyspeed2 = 2
enemydirection3 = 'down'
enemyx3 = 200
enemyy3 = 50
enemyspeed3 = 1
while True:
for event in pygame.event.get():
if event.type == pygame.QUIT:
quitt()
if event.type == pygame.KEYDOWN:
if event.key == pygame.K_RIGHT:
playerx += 12
elif event.key == pygame.K_LEFT:
playerx -= 12
elif event.key == pygame.K_UP:
playery -= 12
elif event.key == pygame.K_DOWN:
playery += 12
if enemydirection == 'down':
enemyy += enemyspeed
if enemyy >= 790:
enemydirection = 'up'
elif enemydirection == 'up':
enemyy -= enemyspeed
if enemyy <= 10:
enemydirection = 'down'
if enemydirection2 == 'up':
enemyy2 -= enemyspeed2
if enemyy2 <= 10:
enemydirection2 = 'down'
elif enemydirection2 == 'down':
enemyy2 += enemyspeed2
if enemyy2 >= 790:
enemydirection2 = 'up'
if (playerx <= enemyx <= playerx + playerWidth) and (playery <= enemyy <= playery + playerHeight):
print("hai")
window.blit(theboard, (0,0))
window.blit(mrhinckleberg, (playerx,playery))
window.blit(enemy, (enemyx,enemyy))
window.blit(enemy, (enemyx2,enemyy2))
window.blit(enemy, (enemyx3,enemyy3))
pygame.display.update()
我希望這有幫助 :)
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