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在今天的数字时代,计算机游戏一直是人们娱乐和放松的一种重要方式。而作为程序员或编程爱好者,将自己的创意融入游戏开发中,不仅可以带来乐趣,还可以提高编程技能。本文将带您走进游戏开发的精彩世界,通过使用 Python 编程语言,快速创建一个简单的飞机大战小游戏,仅供娱乐。
敌机图片:
我方飞机:
子弹:
背景图:
- from PySide2 import QtCore, QtWidgets, QtGui
- from settings import Settings
- from map import Map
- from hero import Hero
- from enemy import Enemy
- from random import randint
-
- class MainScene(QtWidgets.QWidget):
- def __init__(self):
- super().__init__()
- self.settings = Settings()
- self.setWindowTitle(self.settings.game_title)
- self.setWindowIcon(QtGui.QIcon(self.settings.game_ico))
- self.setFixedSize(self.settings.game_width, self.settings.game_height)
-
- self.map = Map() # 构造一个地图对象
- self.hero = Hero() # 构造一个英雄对象
- # 初始化敌机
- self.enemys = []
- self.enemy_interval = 0
- for i in range(self.settings.enemy_num):
- self.enemys.append(Enemy())
-
- self.timer_main = QtCore.QTimer(self)
- self.timer_main.setInterval(20)
- self.timer_main.timeout.connect(self.run)
- self.timer_main.start()
-
- self.presskeys = []
- self.timer_key = QtCore.QTimer(self)
- self.timer_key.setInterval(50)
- self.timer_key.timeout.connect(self.handleKey)
-
-
- def enemyToScene(self):
- self.enemy_interval += 1
- if self.enemy_interval < 30:
- return
- self.enemy_interval = 0
-
- for i in range(self.settings.enemy_num):
- if self.enemys[i].free:
- self.enemys[i].free = False
- self.enemys[i].x = randint(0, self.settings.game_width-self.enemys[i].img.width())
- self.enemys[i].y = -self.enemys[i].img.height()
- break
-
- def collisionDetect(self):
- for i in range(self.settings.enemy_num):
- if self.enemys[i].free:
- continue
-
- for j in range(self.settings.bullet_num):
- if self.hero.bullets[j].free:
- continue
- if self.enemys[i].rect.intersects(self.hero.bullets[j].rect):
- self.enemys[i].free = True
- self.hero.bullets[j].free = True
-
-
- def handleKey(self):
- x = self.hero.x
- y = self.hero.y
- if self.presskeys.count(QtCore.Qt.Key_Left) > 0:
- x -= self.hero.speed
- if self.presskeys.count(QtCore.Qt.Key_Right) > 0:
- x += self.hero.speed
- if self.presskeys.count(QtCore.Qt.Key_Space) > 0:
- self.hero.shoot()
- if self.presskeys.count(QtCore.Qt.Key_Q) > 0:
- self.close()
-
- self.hero.move(x, y)
-
- def keyPressEvent(self, event):
- '''按键按下时,自动调用此函数'''
- self.presskeys.append(event.key())
- if not self.timer_key.isActive():
- self.timer_key.start()
-
- def keyReleaseEvent(self, event):
- '''松开按键时,自动调用'''
- if self.timer_key.isActive() and len(self.presskeys) == 0:
- self.timer_key.stop()
- self.handleKey()
-
- while event.key() in self.presskeys:
- self.presskeys.remove(event.key())
-
-
- def updatePosition(self):
- self.map.move()
- '''更新子弹的位置'''
- for i in range(self.settings.bullet_num):
- if not self.hero.bullets[i].free:
- self.hero.bullets[i].move()
- '''更新敌机位置'''
- for i in range(self.settings.enemy_num):
- if not self.enemys[i].free:
- self.enemys[i].move()
-
-
- def run(self):
- self.enemyToScene()
- self.updatePosition()
- self.update()
- self.collisionDetect()
-
-
- def paintEvent(self, event):
- painter = QtGui.QPainter(self)
- painter.drawPixmap(0, self.map.y1, self.map.img1)
- painter.drawPixmap(0, self.map.y2, self.map.img2)
- painter.drawPixmap(self.hero.x, self.hero.y, self.hero.img)
- '''绘制子弹'''
- for i in range(self.settings.bullet_num):
- if not self.hero.bullets[i].free:
- painter.drawPixmap(self.hero.bullets[i].x, self.hero.bullets[i].y, self.hero.bullets[i].img)
-
- '''绘制敌机'''
- for i in range(self.settings.enemy_num):
- if not self.enemys[i].free:
- painter.drawPixmap(self.enemys[i].x, self.enemys[i].y, self.enemys[i].img)
-
-
- if __name__ == "__main__":
- app = QtWidgets.QApplication([])
-
- w = MainScene()
- w.show()
-
- app.exec_()

app.ico图片为游戏运行界面左上角图标,随便用那张图片都行,例如直接使用我方飞机图片重命名即可
- class Settings:
- def __init__(self):
- self.game_title = "python飞机大战"
- self.game_ico = r"D:\images\app.ico"
- self.game_width = 512
- self.game_height = 700
-
- self.map_path = r"D:\images\img_bg_level_2.png"
- self.map_speed = 2
-
- self.hero_path = r"D:\images\hero2.png"
- self.hero_speed = 20
-
- self.bullet_path = r"D:\images\bullet_11.png"
- self.bullet_speed = 10
- self.bullet_num = 10
-
- self.enemy_path = r"D:\images\img-plane_5.png"
- self.enemy_speed = 3
- self.enemy_num = 10

- from PySide2 import QtGui
- from settings import Settings
-
- class Enemy:
- def __init__(self):
- self.settings = Settings()
- self.img = QtGui.QPixmap(self.settings.enemy_path)
- self.rect = self.img.rect()
- self.x = 0
- self.y = 0
- self.free = True
- self.speed = self.settings.enemy_speed
-
- def move(self):
- if self.free:
- return
- self.y += self.speed
- self.rect.moveTo(self.x, self.y)
- if self.y >= self.settings.game_height:
- self.free = True

- from PySide2 import QtGui
- from settings import Settings
- from bullet import Bullet
-
- class Hero:
- def __init__(self):
- self.settings = Settings()
- self.img = QtGui.QPixmap(self.settings.hero_path)
- self.x = self.settings.game_width*0.5 - self.img.width()*0.5
- self.y = self.settings.game_height - self.img.height()
- self.speed = self.settings.hero_speed
-
- # 创建一个弹夹,放入10颗子弹
- self.bullets = []
- for i in range(self.settings.bullet_num):
- self.bullets.append(Bullet())
-
- def move(self, x, y):
- '''飞机移动'''
- self.x = x
- self.y = y
-
- def shoot(self):
- '''飞机发射子弹,按空格键时,调用此函数'''
- for i in range(self.settings.bullet_num):
- if self.bullets[i].free:
- self.bullets[i].free = False
- self.bullets[i].x = self.x + self.img.width()*0.5 - self.bullets[i].img.width()*0.5
- self.bullets[i].y = self.y - 30
- break

- from PySide2 import QtGui
- from settings import Settings
-
-
- class Map:
- def __init__(self):
- self.settings = Settings()
- self.img1 = QtGui.QPixmap(self.settings.map_path)
- self.img2 = QtGui.QPixmap(self.settings.map_path)
-
- self.y1 = -self.settings.game_height
- self.y2 = 0
-
- def move(self):
- self.y1 += self.settings.map_speed
- if self.y1 >= 0:
- self.y1 = -self.settings.game_height
-
- self.y2 += self.settings.map_speed
- if self.y2 >= self.settings.game_height:
- self.y2 = 0

- from PySide2 import QtGui
- from settings import Settings
-
- class Bullet:
- def __init__(self):
- self.settings = Settings()
- self.img = QtGui.QPixmap(self.settings.bullet_path)
- self.rect = self.img.rect()
- self.speed = self.settings.bullet_speed
- self.x = 0
- self.y = 0
- self.free = True
-
- def move(self):
- if self.free:
- return
-
- self.y -= self.speed
- self.rect.moveTo(self.x, self.y)
- if self.y <= -self.rect.height():
- self.free = True

运行方式:运行main.py即可
如果直接用文章中的背景图保存到本地后运行代码,运行结果如下:
于是自己替换了背景图片,和样例中的背景图调整像素到了一样大小:512x768(游戏界面参数设定是512和700,背景图大小有差别不影响,自己觉得可以就行):
替换背景后运行结果如下:
运行结果视频展示(方向键左右移动,空格射击):
20221011_182548
需要安装Pyside2依赖库,直接pip install Pyside2即可,如果出现
qt.qpa.plugin: Could not load the Qt platform plugin "windows" in "" even though it was found.
This application failed to start because no Qt platform plugin could be initialized. Reinstalling the application may fix this problem.
Available platform plugins are: minimal, offscreen, windows.错误
参照以下方法解决
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