python - Pygame - 黑屏显示
问题描述
我刚开始学习python。我正在制作太空侵略者游戏,我不知道为什么,但每次我运行代码时,显示器都是黑色的,直到我关闭它。我检查了代码,没有看到任何错误。也许这是一个简单而常见的问题,但我无法解决它:/ 请告诉我出了什么问题,我将非常感激。这是我的代码:
import math
import random
import pygame
# Intialaze the pygame
pygame.init()
# create the screen
screen = pygame.display.set_mode((600, 800))
# Title and Icon
pygame.display.set_caption("Space Invaders")
icon = pygame.image.load('battleship (1).png')
pygame.display.set_icon(icon)
score = 0
# Player
playerImg = pygame.image.load('battleship (2).png')
playerX = 275
playerY = 700
playerX_change = 0
# Enemy
enemyImg = []
enemyX = []
enemyY = []
enemyX_change = []
enemyY_change = []
num_of_enemies = 6
for i in range(num_of_enemies):
enemyImg.append(pygame.image.load('invader.png'))
enemyX.append(random.randint(1, 525))
enemyY.append(random.randint(50, 150))
enemyX_change.append(0.3)
enemyY_change.append(115)
# Bullet
bulletImg = pygame.image.load('bullet (3).png')
bulletX = 0
bulletY = 700
bulletY_change = 0.87
bullet_state = "ready"
def enemy(x, y, i):
screen.blit((enemyImg[i]), (int(x), int(y)))
def player(x, y):
screen.blit((playerImg), (int(x), int(y)))
def fire_bullet(x, y):
global bullet_state
bullet_state = "fire"
screen.blit((bulletImg), (int(x + 16.0), int(y - 18.5)))
def isCollision(enemyX, enemyY, bulletX, bulletY):
distance = math.sqrt((math.pow(enemyX - bulletX, 2)) + (math.pow(enemyY - bulletY, 2)))
if distance < 26.8:
return True
else:
return False
# game loop
running = True
while running:
# RGB - Red, Green, Blue
screen.fill((255, 255, 255))
for event in pygame.event.get():
if event.type == pygame.QUIT:
running = False
# Player Movement
if event.type == pygame.KEYDOWN:
if event.key == pygame.K_RIGHT:
playerX_change = 0.3
if event.key == pygame.K_LEFT:
playerX_change = -0.3
if event.key == pygame.K_SPACE:
if bullet_state == "ready":
BulletX = playerX
fire_bullet(playerX, bulletY)
if event.type == pygame.KEYUP:
if event.key == pygame.K_LEFT or event.key == pygame.K_RIGHT:
PlayerX_change = 0
# Player boundaries
playerX += playerX_change
if playerX <= 0:
playerX = 0
elif playerX >= 536:
playerX = 536
# Enemy Movement
for i in range(num_of_enemies):
enemyX[i] += enemyX_change[i]
if enemyX[i] <= 0:
enemyX_change[i] = 0.3
enemyY[i] += enemyY_change[i]
elif enemyX[i] >= 536:
enemyX_change[i] = -0.3
enemyY[i] += enemyY_change[i]
# Collision
collision = isCollision(enemyX[i], enemyY[i], bulletX, bulletY)
if collision:
bulletY = 700
bullet_state = "ready"
score += 1
print(score)
enemyX[i] = random.randint(1, 525)
enemyY[i] = random.randint(50, 150)
enemy(enemyX[i], enemyY[i], i)
# Bullet Movement
if bulletY <= 0:
bulletY = 700
bullet_state = "ready"
if bullet_state == "fire":
fire_bullet(bulletX, bulletY)
bulletY -= bulletY_change
player(playerX, playerY)
pygame.display.update()
解决方案
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