我还是初学者，我正在尝试更频繁地使用课程。我刚遇到一个问题，我一直试图弄清楚几个小时。当敌人攻击我的星球时，我的星球的价值应该随着舰队的价值而降低。如果我的星球的值低于0，我的星球应该成为敌人的星球。但是，当敌人的舰队与我的星球发生碰撞时，我的星球的价值会上升而且所有者变量保持不变。我相信我的错误是在我的舰队Class的更新功能中的某个地方。我试图从代码输出很多打印语句，所以我可以看到每个循环的每个变量的状态。结果，玩家的星球并没有改变所有者，但我确实看到了这个星球的价值下降。如果你们有任何建议可以帮助我解决其他问题，我将非常感谢你的帮助。哦，我的颜色是硬编码的我知道，这是暂时的。
import sys
import math
import pygame
screen_size = (640, 480)
fps = 60
class Planet(pygame.sprite.Sprite):
''''''
def __init__(self, x, y, value, owner = 'free', color = (0, 0, 255)):
pygame.sprite.Sprite.__init__(self)
self.image = pygame.Surface((32, 32))
self.image.fill(color)
self.rect = self.image.get_rect()
self.rect.x = x
self.rect.y = y
self.value = value
self.owner = owner
self.color = color
self.grow = False
self.selected = False
self.text = str(self.value)
def update(self):
if self.grow == True:
self.value += 1
self.grow = False
self.text = str(self.value)
if self.owner == 'player':
color = (0, 255, 0)
elif self.owner == 'free':
color = (0, 0, 255)
elif self.owner == 'enemy':
color = (255, 0, 0)
if self.selected:
color = (255, 0, 255)
self.image.fill(color)
def drawValue(self):
textToScreen(screen, self.text, self.rect.centerx, self.rect.centery)
class Fleet(pygame.sprite.Sprite):
def __init__(self, x, y, value, owner, home, target):
pygame.sprite.Sprite.__init__(self)
self.image = pygame.Surface((16, 16))
self.image.fill((255, 0, 0))
self.rect = self.image.get_rect()
self.rect.x = x
self.rect.y = y
self.value = value
self.owner = owner
self.text = str(self.value)
self.home = home
self.target = target
self.speed = 2
def update(self):
self.text = str(self.value)
for planet in playerplanets: #fleet collision with
if planet.rect.collidepoint(self.rect.x, self.rect.y):
if self.home != planet.rect:
if self.owner == 'player':
planet.value += self.value
elif self.owner == 'enemy':
planet.value -= self.value
if planet.value <= 0:
playerplanets.remove(planet)
planet.owner = 'enemy'
enemyplanets.add(planet)
#planet.value = planet.value - (planet.value * 2)
self.kill()
for planet in freeplanets:
if planet.rect.collidepoint(self.rect.x, self.rect.y):
planet.value -= self.value
if planet.value <= 0:
planet.value = planet.value - (planet.value * 2)
freeplanets.remove(planet)
if self.owner == 'player':
planet.owner = 'player'
playerplanets.add(planet)
elif self.owner == 'enemy':
planet.owner = 'enemy'
enemyplanets.add(planet)
self.kill()
for planet in enemyplanets:
if planet.rect.collidepoint(self.rect.x, self.rect.y):
if self.home != planet.rect:
planet.value -= self.value
if planet.value <= 0:
planet.value = planet.value - (planet.value * 2)
enemyplanets.remove(planet)
planet.owner = 'player'
playerplanets.add(planet)
dx, dy = self.rect.centerx - self.target[0], self.rect.centery - self.target[1]
dist = math.hypot(dx, dy)
if dist == 0:
dist = 1
else:
dx, dy = dx / dist, dy / dist
self.rect.centerx -= dx * self.speed
self.rect.centery -= dy * self.speed
def drawValue(self):
textToScreen(screen, self.text, self.rect.centerx, self.rect.centery)
def main():
global screen, clock, timer, homeplanets, playerplanets, freeplanets, enemyplanets, allplanets, playerfleets, enemyfleets, allfleets
pygame.init()
screen = pygame.display.set_mode((screen_size), 0)
clock = pygame.time.Clock()
timer = 0
homeplanets = pygame.sprite.Group()
playerplanets = pygame.sprite.Group()
freeplanets = pygame.sprite.Group()
enemyplanets = pygame.sprite.Group()
allplanets = pygame.sprite.Group()
playerfleets = pygame.sprite.Group()
enemyfleets = pygame.sprite.Group()
allfleets = pygame.sprite.Group()
background = (200, 200, 200)
planet01 = Planet(50, 50, 100, 'player', (0, 255, 0))
planet02 = Planet(100, 200, 50, 'free', (0, 0, 255))
planet03 = Planet(300, 100, 200, 'enemy', (255, 0, 0))
homeplanets.add(planet01)
playerplanets.add(planet01)
allplanets.add(planet01)
freeplanets.add(planet02)
allplanets.add(planet02)
enemyplanets.add(planet03)
allplanets.add(planet03)
while True:
processTimer()
processInput()
processAI()
allplanets.update()
allfleets.update()
screen.fill(background)
allplanets.draw(screen)
allfleets.draw(screen)
for planet in allplanets:
planet.drawValue()
for fleet in allfleets:
fleet.drawValue()
pygame.display.flip()
clock.tick(fps)
#TEST
for planet in allplanets:
print planet.owner
def processTimer():
global timer
timer += 1
if timer == 100:
for planet in allplanets:
planet.grow = True
timer = 0
def processInput():
for event in pygame.event.get():
if event.type == pygame.QUIT:
pygame.quit()
sys.exit()
elif event.type == pygame.KEYDOWN:
if event.key == pygame.K_ESCAPE:
pygame.quit()
sys.exit()
elif event.type == pygame.MOUSEBUTTONDOWN:
mousex, mousey = pygame.mouse.get_pos()
if event.button == 1:
processLeftClicked(mousex, mousey)
elif event.button == 3:
processRightClicked(mousex, mousey)
def processAI():
for eplanet in enemyplanets:
if eplanet.value > 10:
for pplanet in playerplanets:
if eplanet.value / 2 > pplanet.value + 10:
target = pplanet.rect.center
x = eplanet.rect.x
y = eplanet.rect.y
value = eplanet.value / 2
home = eplanet.rect
eplanet.value = eplanet.value / 2
fleet = Fleet(x, y, value, 'enemy', home, target)
enemyfleets.add(fleet)
allfleets.add(fleet)
def processLeftClicked(mousex, mousey):
for planet in playerplanets:
if planet.rect.collidepoint((mousex, mousey)):
if planet.selected == True:
planet.selected = False
elif planet.selected == False:
planet.selected = True
def processRightClicked(mousex, mousey):
for planet_ in allplanets:
if planet_.rect.collidepoint((mousex, mousey)):
planet_.selected = False
target = planet_.rect.center
for planet in playerplanets:
if planet.selected == True:
if planet.value != 0:
x = planet.rect.x
y = planet.rect.y
value = planet.value / 2
home = planet.rect
if value == 0:
value = 1
planet.value = planet.value / 2
fleet = Fleet(x, y, value, 'player', home, target)
playerfleets.add(fleet)
allfleets.add(fleet)
def textToScreen(screen, text, x = 100, y = 100, text_size = 15, text_color = (0, 0, 0), font_type = 'freesans.ttf'):
try:
font = pygame.font.SysFont(font_type, text_size)
text = str(text)
text = font.render(text, True, text_color)
text_rect = text.get_rect()
text_rect.centerx = x
text_rect.centery = y
screen.blit(text, (text_rect))
except Exception as exception:
print('Font Error')
raise exception
if __name__ == '__main__':
main()
答案 0 :(得分：0)
问题是你要将它添加到敌人列表中，但是当你处理敌人的时候，它现在在那个列表中，所以它会再次被添加回到playerplanets。换句话说，它在一次更新中被处理两次。向地球添加某种旗帜，表明它已经被处理过了。