源码及注释：

import pygame

from sys import exit

from random import randint

import time

import os

# 定义窗口分辨率

SCREEN_WIDTH = 700

SCREEN_HEIGHT = 600

current_path = os.path.abspath(os.path.dirname(__file__))

root_path = current_path[:current_path.find("monkey-picking-peach\\") + len("monkey-picking-peach\\")] \

+ "resource\\images\\"

# 图片

BACKGROUND_IMAGE_PATH = root_path + "background.jpg"

MONKEY_IMAGE_PATH = root_path + "monkey.png"

APPLE_IMAGE_PATH = root_path + "apple.png"

JUMP_STATUS = False

OVER_FLAG = False

START_TIME = None

offset = {pygame.K_LEFT: 0, pygame.K_RIGHT: 0, pygame.K_UP: 0, pygame.K_DOWN: 0}

# 定义画面帧率

FRAME_RATE = 60

# 定义动画周期(帧数)

ANIMATE_CYCLE = 30

ticks = 0

clock = pygame.time.Clock()

# 猴子类

class Monkey(pygame.sprite.Sprite):

# 苹果的数量

apple_num = 0

def __init__(self, mon_surface, monkey_pos):

pygame.sprite.Sprite.__init__(self)

self.image = mon_surface

self.rect = self.image.get_rect()

self.rect.topleft = monkey_pos

self.speed = 5

# 控制猴子的移动

def move(self, _offset):

global JUMP_STATUS

x = self.rect.left + _offset[pygame.K_RIGHT] - _offset[pygame.K_LEFT]

y = self.rect.top + _offset[pygame.K_DOWN] - _offset[pygame.K_UP]

if y < 0:

self.rect.top = 0

JUMP_STATUS = True

elif y >= SCREEN_HEIGHT - self.rect.height:

self.rect.top = SCREEN_HEIGHT - self.rect.height

JUMP_STATUS = False

else:

self.rect.top = y

JUMP_STATUS = True

if x < 0:

self.rect.left = 0

elif x > SCREEN_WIDTH - self.rect.width:

self.rect.left = SCREEN_WIDTH - self.rect.width

else:

self.rect.left = x

# 接苹果

def picking_apple(self, app_group):

# 判断接到几个苹果

picked_apples = pygame.sprite.spritecollide(self, app_group, True)

# 添加分数

self.apple_num += len(picked_apples)

# 接到的苹果消失

for picked_apple in picked_apples:

picked_apple.kill()

# 苹果类

class Apple(pygame.sprite.Sprite):

def __init__(self, app_surface, apple_pos):

pygame.sprite.Sprite.__init__(self)

self.image = app_surface

self.rect = self.image.get_rect()

self.rect.topleft = apple_pos

self.speed = 1

def update(self):

global START_TIME

if START_TIME is None:

START_TIME = time.time()

self.rect.top += (self.speed * (1 + (time.time() - START_TIME) / 40))

if self.rect.top > SCREEN_HEIGHT:

# 苹果落地游戏结束

global OVER_FLAG

OVER_FLAG = True

self.kill()

# 初始化游戏

pygame.init()

screen = pygame.display.set_mode((SCREEN_WIDTH, SCREEN_HEIGHT))

pygame.display.set_caption("猴子接苹果")

# 载入图片

background_surface = pygame.image.load(BACKGROUND_IMAGE_PATH).convert()

monkey_surface = pygame.image.load(MONKEY_IMAGE_PATH).convert_alpha()

apple_surface = pygame.image.load(APPLE_IMAGE_PATH).convert_alpha()

# 创建猴子

monkey = Monkey(monkey_surface, (200, 500))

# 创建苹果组

apple_group = pygame.sprite.Group()

# 分数字体

score_font = pygame.font.SysFont("arial", 40)

# 主循环

while True:

if OVER_FLAG:

break

# 控制游戏最大帧率

clock.tick(FRAME_RATE)

# 绘制背景

screen.blit(background_surface, (0, 0))

if ticks >= ANIMATE_CYCLE:

ticks = 0

# 产生苹果

if ticks % 30 == 0:

apple = Apple(apple_surface,

[randint(0, SCREEN_WIDTH - apple_surface.get_width()), -apple_surface.get_height()])

apple_group.add(apple)

# 控制苹果

apple_group.update()

# 绘制苹果组

apple_group.draw(screen)

# 绘制猴子

screen.blit(monkey_surface, monkey.rect)

ticks += 1

# 接苹果

monkey.picking_apple(apple_group)

# 更新分数

score_surface = score_font.render(str(monkey.apple_num), True, (0, 0, 255))

screen.blit(score_surface, (620, 10))

# 更新屏幕

pygame.display.update()

for event in pygame.event.get():

if event.type == pygame.QUIT:

pygame.quit()

exit()

# 控制方向

if event.type == pygame.KEYDOWN:

if event.key in offset:

if event.key == pygame.K_UP:

offset[event.key] = 80

else:

offset[event.key] = monkey.speed

elif event.type == pygame.KEYUP:

if event.key in offset:

offset[event.key] = 0

# 移动猴子

if JUMP_STATUS:

offset[pygame.K_DOWN] = 5

offset[pygame.K_UP] = 0

monkey.move(offset)

# 游戏结束推出界面

score_surface = score_font.render(str(monkey.apple_num), True, (0, 0, 255))

over_surface = score_font.render(u"Game Over!", True, (0, 0, 255))

screen.blit(background_surface, (0, 0))

screen.blit(score_surface, (620, 10))

screen.blit(over_surface, (250, 270))

while True:

pygame.display.update()

for event in pygame.event.get():

if event.type == pygame.QUIT:

pygame.quit()

exit()

食用指南： 使用的图片

monkey.png：

background.jpg：

apple.png：

这是我的文件目录，学习者也可改为自己的:

更改的代码位置：

root_path = current_path[:current_path.find("monkey-picking-peach\\") + len("monkey-picking-peach\\")] \

+ "resource\\images\\"

游戏截图：

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