我的老师检查了我的代码，我们不知道是什么给了我这个错误，我更新的最后一件事是＆＃39; fireShell＆＃39;定义。在我实现这个定义之前游戏正在运行，当你按空格键时游戏崩溃了。它是坦克游戏，随机蛇的东西来自我们制作的旧代码。
import pygame
import time
import random
pygame.init()
white = (255,255,255)
black = (0,0,0)
red = (255,0,0)
purple = (200,0,200)
green = (0,155,0)
yellow = (255,255,0)
pink = (255,153,204)
light_green = (0,255,0)
orange = (255,165,0)
clock = pygame.time.Clock()
display_width = 800
display_height = 600
gameDisplay = pygame.display.set_mode((display_width,display_height))
pygame.display.set_caption('Tanks')
#icon = pygame.image.load('snakeHead.png')
#pygame.display.set_icon(icon)
#img = pygame.image.load('snakeHead.png')
#appleimg = pygame.image.load('apple.png')
FPS = 10
tankWidth = 40
tankHeight = 20
turretWidth = 5
wheelWidth = 5
smallfont = pygame.font.SysFont("comicsansms", 25)
medfont = pygame.font.SysFont("comicsansms", 40)
largefont = pygame.font.SysFont("comicsansms", 70)
def tank(x,y,turPos):
x = int(x)
y = int(y)
possibleTurrets = [(x-27, y-2),
(x-26, y-5),
(x-25, y-8),
(x-23, y-12),
(x-20, y-14),
(x-18, y-15),
(x-15, y-17),
(x-13, y-19),
(x-11, y-21),
]
pygame.draw.circle(gameDisplay, black, (x,y),10)
pygame.draw.rect(gameDisplay, black, (x-tankHeight, y, tankWidth, tankHeight))
pygame.draw.line(gameDisplay, black, (x,y,), possibleTurrets[turPos], turretWidth)
pygame.draw.circle(gameDisplay, black, (x-15, y+20), wheelWidth)
pygame.draw.circle(gameDisplay, black, (x-10, y+20), wheelWidth)
pygame.draw.circle(gameDisplay, black, (x-5, y+20), wheelWidth)
pygame.draw.circle(gameDisplay, black, (x, y+20), wheelWidth)
pygame.draw.circle(gameDisplay, black, (x+5, y+20), wheelWidth)
pygame.draw.circle(gameDisplay, black, (x+10, y+20), wheelWidth)
pygame.draw.circle(gameDisplay, black, (x+15, y+20), wheelWidth)
def introbutton():
cur = pygame.mouse.get_pos()
if 150+100> cur[0] > 150 and 500+50 > cur[1] > 500:
pygame.draw.rect(gameDisplay,light_green,(150,500,100,50))
else:
pygame.draw.rect(gameDisplay,green,(150,500,100,50))
if 350+100> cur[0] > 350 and 500+50 > cur[1] > 500:
pygame.draw.rect(gameDisplay,pink,(350,500,100,50))
else:
pygame.draw.rect(gameDisplay,yellow,(350,500,100,50))
if 550+100> cur [0] > 550 and 500+50 > cur[1] > 500:
pygame.draw.rect(gameDisplay,orange,(550,500,100,50))
else:
pygame.draw.rect(gameDisplay,red,(550,500,100,50))
def text_to_button(msg, color, buttonx, buttony, buttonwidth, buttonheight, size = "small"):
textSurf, textRect = text_objects(msg,color,size)
textRect.center = ((buttonx+(buttonwidth/2)), buttony+(buttonheight/2))
gameDisplay.blit(textSurf, textRect)
def controls():
controls = True
while controls:
for event in pygame.event.get():
if event.type == pygame.QUIT:
pygame.quit()
quit()
gameDisplay.fill(white)
message_to_screen("Controls",
green,
-100,
"large")
message_to_screen("Fire: Spacebar",
black,
-30)
message_to_screen("Move Turret: W & S",
black,
10)
message_to_screen("Move Tank: A & D",
black,
50)
message_to_screen("Pause: P",
black,
90,)
introbutton()
button("play",
150,500,100,50,
green,
light_green,
action = "play")
button("menu",
350,500,100,50,
yellow,
pink,
action = "menu")
button("quit",
550,500,100,50,
red,
orange,
action = "quit")
pygame.display.update()
clock.tick(15)
def button(text, x, y, width, height, inactive_color, active_color, action = None):
cur = pygame.mouse.get_pos()
click = pygame.mouse.get_pressed()
if x + width > cur[0] > x and y + height > cur[1] > y:
pygame.draw.rect(gameDisplay, active_color, (x,y,width,height))
if click[0] == 1 and action != None:
if action == "quit":
pygame.quit()
quit()
if action == "play":
gameLoop()
if action == "controls":
controls()
if action == "menu":
game_intro()
else:
pygame.draw.rect(gameDisplay,inactive_color, (x,y,width,height))
text_to_button(text,black,x,y,width,height)
def pause():
paused = True
message_to_screen("Paused",
black,
-100,
"large")
message_to_screen("Press C to continue or Q to quit.",
black,
25)
pygame.display.update()
while paused:
for event in pygame.event.get():
if event.type == pygame.QUIT:
pygame.quit()
quit()
if event.type == pygame.KEYDOWN:
if event.key == pygame.K_c:
paused = False
elif event.key == pygame.K_q:
pygame.quit()
quit()
clock.tick(5)
def score(score):
text = smallfont.render("score: "+str(score), True, black)
gameDisplay.blit(text, [0,0])
def game_intro():
intro = True
while intro:
for event in pygame.event.get():
if event.type == pygame.QUIT:
pygame.quit()
quit()
if event.type == pygame.KEYDOWN:
if event.key == pygame.K_c:
intro = False
if event.key == pygame.K_q:
pygame.quit()
quit()
gameDisplay.fill(white)
message_to_screen("Welcome to Tanks",
green,
-100,
"large")
message_to_screen("The objective of the game is to shoot and destroy",
black,
-30)
message_to_screen("the enemy tank before they destroy you.",
black,
10)
message_to_screen("The more enemies you destroy the harder it gets.",
black,
50)
introbutton()
button("play",
150,500,100,50,
green,
light_green,
action = "play")
button("controls",
350,500,100,50,
yellow,
pink,
action = "controls")
button("quit",
550,500,100,50,
red,
orange,
action = "quit")
pygame.display.update()
clock.tick(15)
def text_objects(text, color, size):
if size == "small":
textSurface = smallfont.render(text, True, color)
elif size == "medium":
textSurface = medfont.render(text, True, color)
elif size == "large":
textSurface = largefont.render(text, True, color)
return textSurface, textSurface.get_rect()
def message_to_screen(msg, color, y_displace=0, size = "small"):
textSurf, textRect = text_objects(msg,color, size)
textRect.center = (display_width/2), (display_height/2)+y_displace
gameDisplay.blit(textSurf, textRect)
def barrier(xlocation,randomHeight, barrier_width):
#xlocation = (display_width/2) + random.randint(-0.2*display_width, 0.2*display_width)
#randomHeight = random.randrange(display_height*0.1,display_height*0.6)
pygame.draw.rect(gameDisplay, black, [xlocation, display_height-randomHeight, 50, randomHeight])
def fireShell(xy,tankx,tanky,turPos):
fire = True
startingShell = list(xy)
print("FIRE",xy)
while fire:
for event in pygame.event.get():
if event.type == pygame.QUIT:
pygame.quit()
quit()
print(startingShell[0],startingShell[1])
pygame.draw.circle(gameDisplay, red, (startingShell[0],startingShell[1]),5)
startingShell[0] -= (12 - turPos)*2
startingShell[1] += int((((startingShell[0]-xy[0])*0.015)**2) - (turPos+turPos/(12-turPos)))
if startingShell[1] > display_height:
fire = False
pygame.display.update()
clock.tick(60)
def gameLoop():
gameExit = False
gameOver = False
mainTankX = display_width * 0.9
mainTankY = display_height * 0.7
tankMove = 0
currentTurPos = 0
changeTur = 0
barrier_width = 50
xlocation = (display_width/2) + random.randint(-0.2*display_width, 0.2*display_width)
randomHeight = random.randrange(display_height*0.1,display_height*0.6)
while not gameExit:
gameDisplay.fill(white)
gun = tank(mainTankX,mainTankY,currentTurPos)
if gameOver == True:
message_to_screen("Game Over",
purple,
-50,
"large")
message_to_screen("Press C to play again or Q to quit",
black,
50,
"medium")
pygame.display.update()
while gameOver == True:
for event in pygame.event.get():
if event.type == pygame.QUIT:
gameExit = True
gameOver = False
if event.type == pygame.KEYDOWN:
if event.key == pygame.K_q:
gameExit = True
gameOver = False
if event.key == pygame.K_c:
gameLoop()
for event in pygame.event.get():
if event.type == pygame.QUIT:
gameExit = True
if event.type == pygame.KEYDOWN:
if event.key == pygame.K_LEFT:
tankMove = -5
elif event.key == pygame.K_RIGHT:
tankMove = 5
elif event.key == pygame.K_UP:
changeTur = 1
elif event.key == pygame.K_DOWN:
changeTur = -1
elif event.key == pygame.K_p:
pause()
elif event.key == pygame.K_SPACE:
fireShell(gun,mainTankX,mainTankY,currentTurPos)
elif event.type == pygame.KEYUP:
if event.key == pygame.K_LEFT or event.key == pygame.K_RIGHT:
tankMove = 0
elif event.key == pygame.K_UP or event.key == pygame.K_DOWN:
changeTur = 0
#gameDisplay.fill(white)
mainTankX += tankMove
currentTurPos += changeTur
if currentTurPos > 8:
currentTurPos = 8
elif currentTurPos < 0:
currentTurPos = 0
if mainTankX - (tankWidth/2) < xlocation+barrier_width:
mainTankX += 5
#tank(mainTankX,mainTankY,currentTurPos)
##for x in range(1):
barrier(xlocation, randomHeight, barrier_width)
#score(snakeLength-1)
pygame.display.update()
clock.tick(FPS)
pygame.quit()
quit()
game_intro()
gameLoop()
答案 0 :(得分：1)
我检查的第一个地方（有更多的印刷品，测试等）是
def fireShell(xy,tankx,tanky,turPos):
...
while fire:
for event in pygame.event.get():
if event.type == pygame.QUIT:
pygame.quit()
quit()
这是新功能中的唯一迭代。如果pygame.event.get()返回None，我就会发现此错误
In [235]: for i in None:print(i)
---------------------------------------------------------------------------
TypeError Traceback (most recent call last)
<ipython-input-235-5168590b751e> in <module>()
----> 1 for i in None:print(i)
TypeError: 'NoneType' object is not iterable