python-pyqt5实现贪吃蛇游戏

前言-小游戏Demo

开发环境：win10
开发工具：pycharm + pyqt5

我这里就直接上代码了。。还有很多地方可以改进！欢迎大家多多指点

from pygame.locals import *
from random import randint
import pygame
import time

class Apple:
    x = 0
    y = 0
    step = 44

    def __init__(self, x, y):
        self.x = x * self.step
        self.y = y * self.step

    def draw(self, surface, image):
        surface.blit(image, (self.x, self.y))


class Player:
    x = [0]
    y = [0]
    step = 44
    direction = 0
    length = 3

    updateCountMax = 2
    updateCount = 0

    def __init__(self, length):
        self.length = length
        for i in range(0, 2000):
            self.x.append(-100)
            self.y.append(-100)

        # 初始化位置
        self.x[1] = 1 * 44
        self.x[2] = 2 * 44

    def update(self):

        self.updateCount = self.updateCount + 1
        if self.updateCount > self.updateCountMax:

            # 更新以前的位置
            for i in range(self.length - 1, 0, -1):
                self.x[i] = self.x[i - 1]
                self.y[i] = self.y[i - 1]

            #更新蛇头的位置
            if self.direction == 0:
                self.x[0] = self.x[0] + self.step
            if self.direction == 1:
                self.x[0] = self.x[0] - self.step
            if self.direction == 2:
                self.y[0] = self.y[0] - self.step
            if self.direction == 3:
                self.y[0] = self.y[0] + self.step

            self.updateCount = 0

    def moveRight(self):
        self.direction = 0

    def moveLeft(self):
        self.direction = 1

    def moveUp(self):
        self.direction = 2

    def moveDown(self):
        self.direction = 3

    def draw(self, surface, image):
        for i in range(0, self.length):
            surface.blit(image, (self.x[i], self.y[i]))

# 碰撞检测(使用同样的isCollision方法来判断蛇是否与自身发生碰撞)
class Game:
    def isCollision(self, x1, y1, x2, y2, bsize):
        if x1 >= x2 and x1 <= x2 + bsize:
            if y1 >= y2 and y1 <= y2 + bsize:
                return True
        return False
        
class App:
    windowWidth = 800
    windowHeight = 600
    player = 0
    apple = 0

    def __init__(self):
        self._running = True
        self._display_surf = None
        self._image_surf = None
        self._apple_surf = None
        self.game = Game()
        self.player = Player(3)
        self.apple = Apple(5, 5)

    def on_init(self):
        pygame.init()
        self._display_surf = pygame.display.set_mode((self.windowWidth, self.windowHeight), pygame.HWSURFACE)

        pygame.display.set_caption('Pygame pythonspot.com example')
        self._running = True
		# 加载图片
        self._image_surf = pygame.image.load("block.png").convert()
        self._apple_surf = pygame.image.load("block.png").convert()

    def on_event(self, event):
        if event.type == QUIT:
            self._running = False

    def on_loop(self):
        self.player.update()

        for i in range(0, self.player.length):
            if self.game.isCollision(self.apple.x, self.apple.y, self.player.x[i], self.player.y[i], 44):
                self.apple.x = randint(2, 9) * 44
                self.apple.y = randint(2, 9) * 44
                self.player.length = self.player.length + 1

        # 蛇与自身碰撞
        for i in range(2, self.player.length):
            if self.game.isCollision(self.player.x[0], self.player.y[0], self.player.x[i], self.player.y[i], 40):
                print("You lose! Collision: ")
                print("x[0] (" + str(self.player.x[0]) + "," + str(self.player.y[0]) + ")")
                print("x[" + str(i) + "] (" + str(self.player.x[i]) + "," + str(self.player.y[i]) + ")")
                exit(0)

        pass

    def on_render(self):
        self._display_surf.fill((0, 0, 0))
        self.player.draw(self._display_surf, self._image_surf)
        self.apple.draw(self._display_surf, self._apple_surf)
        pygame.display.flip()

    def on_cleanup(self):
        pygame.quit()

    def on_execute(self):
        if self.on_init() == False:
            self._running = False

        while (self._running):
            pygame.event.pump()
            keys = pygame.key.get_pressed()

            if (keys[K_RIGHT]):
                self.player.moveRight()

            if (keys[K_LEFT]):
                self.player.moveLeft()

            if (keys[K_UP]):
                self.player.moveUp()

            if (keys[K_DOWN]):
                self.player.moveDown()

            if (keys[K_ESCAPE]):
                self._running = False

            self.on_loop()
            self.on_render()

            time.sleep(50.0 / 1000.0);
        self.on_cleanup()

if __name__ == "__main__":
    theApp = App()
    theApp.on_execute()

运行效果：

虽然还有些BUG，但是还是可以过吧手瘾玩一把。。哈哈