当我运行我的代码时，礼物会很好但一次只会掉落4块煤。我该怎么做才能让更多的煤炭掉下来？煤炭和礼物都以同样的方式设置，所以我很困惑为什么只有4块煤落下。煤炭和礼物都不应该以同样的方式下降吗？
import pygame, sys, time, random
from pygame.locals import *
# Set up pygame.
pygame.init()
mainClock = pygame.time.Clock()
# Set up the window.
WINDOWWIDTH = 800
WINDOWHEIGHT = 700
windowSurface = pygame.display.set_mode((WINDOWWIDTH, WINDOWHEIGHT), 0, 32)
pygame.display.set_caption('Present catch')
myfont = pygame.font.SysFont("monospace", 40)
# Set up the colors.
WHITE = (255, 255, 255)
# Set up the player.
player = pygame.Rect(400, 600, 100, 100)
playerImage = pygame.image.load('player.png')
playerStretchedImage = pygame.transform.scale(playerImage, (100, 100))
# Set up the present
present = pygame.Rect(300, -20, 40, 40)
presentImage = pygame.image.load('present.png')
presentStretchedImage = pygame.transform.scale(presentImage, (40, 40))
# Set up the coal
coal = pygame.Rect(300, -20, 40, 40)
coalImage = pygame.image.load('coal.png')
coalStrechedImage = pygame.transform.scale(coalImage, (40, 40))
maxPresent = 100
highScore = maxPresent
presents = []
for i in range(maxPresent):
x = random.randrange(0, 800)
y = random.randrange(-700, 100)
presents.append(pygame.Rect(x, y, 20, 20))
coals = []
for z in range(120):
x = random.randrange(0, 800)
y = random.randrange(-300, -40)
coals.append(pygame.Rect(x, y, 20, 20))
score = 0
finalScore = 0
# Set up keyboard variables.
moveLeft = False
moveRight = False
moveUp = False
moveDown = False
MOVESPEED = 6
# Set up the music.
pickUpSound = pygame.mixer.Sound('pickup.wav')
pickCoal = pygame.mixer.Sound('drop.wav')
pygame.mixer.music.load('music.mid')
pygame.mixer.music.set_volume(.3)
pygame.mixer.music.play(-1, 0.0)
musicPlaying = True
# Run the game loop.
while True:
# Check for the QUIT event.
for event in pygame.event.get():
if event.type == QUIT:
pygame.quit()
sys.exit()
if event.type == KEYDOWN:
# Change the keyboard variables.
if event.key == K_LEFT or event.key == K_a:
moveRight = False
moveLeft = True
if event.key == K_RIGHT or event.key == K_d:
moveLeft = False
moveRight = True
if event.type == KEYUP:
if event.key == K_ESCAPE:
pygame.quit()
sys.exit()
if event.key == K_LEFT or event.key == K_a:
moveLeft = False
if event.key == K_RIGHT or event.key == K_d:
moveRight = False
if event.key == K_x:
player.top = random.randint(0, WINDOWHEIGHT - player.height)
player.left = random.randint(0, WINDOWWIDTH - player.width)
if event.key == K_m:
if musicPlaying:
pygame.mixer.music.stop()
else:
pygame.mixer.music.play(-1, 0.0)
musicPlaying = not musicPlaying
# Draw the background onto the surface.
background = pygame.image.load('background.jpg').convert()
background = pygame.transform.scale(background, (1280, 720))
rect = background.get_rect()
windowSurface.blit(background, rect)
# Move the player.
if moveLeft and player.left > 0:
player.left -= MOVESPEED
if moveRight and player.right < WINDOWWIDTH:
player.right += MOVESPEED
# Process each present in the list
for i in range(len(presents)):
# Draw the present
windowSurface.blit(presentStretchedImage, present)
# Make present fall.
presents[i][1] += 2
# If the present leaves screen
if presents [i][1] > 700:
# Reset it just above the top
y = random.randrange(-500, -10)
presents[i][1] = y
# Give it a new x position
x = random.randrange(0, 800)
presents[i][0] = x
# Process each coal in the list
for z in range(len(coal)):
# Draw the coal
windowSurface.blit(coalStrechedImage, coal)
# Make coal fall.
coals[z][1] += 3
# If the coal leaves screen
if coals [z][1] > 700:
# Reset it just above the top
p = random.randrange(-500, -10)
coals[z][1] = p
# Give it a new x position
t = random.randrange(0, 800)
coals[z][0] = t
# Check number of presnts on screen.
# Draw the player onto the surface.
windowSurface.blit(playerStretchedImage, player)
# Check whether the player has intersected with any presents.
for present in presents[:]:
if player.colliderect(present):
presents.remove(present)
maxPresent -= 1
score += 1
finalScore = score
if musicPlaying:
pickUpSound.play()
# Check whether the player has intersected with any coal.
for coal in coals[:]:
if player.colliderect(coal):
coals.remove(coal)
score -= 2
if musicPlaying:
pickCoal.play()
# Draw text.
scoretext = myfont.render("Score {0}".format(score), 1, (255,0,0))
windowSurface.blit(scoretext, (600, 0))
# Game Over.
if maxPresent == 0:
gameover = myfont.render('GAME OVER YOUR SCORE WAS {0}'.format(finalScore), 1, (255,0,0))
best = myfont.render('BEST POSSIBLE SCORE = {} '.format(highScore), 1, (255,0,0))
windowSurface.blit(gameover, (100, 350))
windowSurface.blit(best, (150, 400))
pygame.display.update()
# Draw the presents.
for present in presents:
windowSurface.blit(presentStretchedImage, present)
# Draw the coal
for coal in coals:
windowSurface.blit(coalStrechedImage, coal)
# Draw the window onto the screen.
pygame.display.update()
mainClock.tick(40 )