用pygame学习初级python（二） 15.5.11

　　闲得无聊，对第一版的东西做了一些修改，让它更像一个游戏，也具有一些可玩性。

项目的github地址： https://github.com/lfkdsk/BrainHole_pygame

1.人物类进行了一些修改，添加了怪物类的生成机制：

__author__ = 'Administrator'
import pygame

Window_width = 1365
Window_height = 768
screen = pygame.display.set_mode((Window_width, Window_height))
first_location = [screen.get_width() / 2, screen.get_height() / 2]
Player_image_up = ['resources/image/up-1.png', 'resources/image/up-2.png', 'resources/image/up-3.png',
                   'resources/image/up-4.png']
Player_image_down = ['resources/image/down-1.png', 'resources/image/down-2.png', 'resources/image/down-3.png',
                     'resources/image/down-4.png']
Player_image_left = ['resources/image/left-1.png', 'resources/image/left-2.png', 'resources/image/left-3.png',
                     'resources/image/left-4.png']
Player_image_right = ['resources/image/right-1.png', 'resources/image/right-2.png', 'resources/image/right-3.png',
                      'resources/image/right-4.png']
Enemy_image = ["resources/image/zm-1.png", "resources/image/zm-2.png"]
Bullets = []


class Enemy(pygame.sprite.Sprite):
    def __init__(self, init_pos):
        pygame.sprite.Sprite.__init__(self)
        self.image = pygame.image.load("resources/image/zm-2.png")
        self.rect = self.image.get_rect()
        self.rect.topleft = init_pos
        self.speed = 2
        self.down_index = 0
        self.walk = 0

    def move(self):
        topleft = self.rect.topleft
        if self.walk > 40:
            self.walk = 0
            self.image = pygame.image.load("resources/image/zm-2.png")
        if self.walk == 20:
            self.image = pygame.image.load("resources/image/zm-1.png")
        self.rect = self.image.get_rect()
        self.rect.topleft = topleft
        self.walk += 1
        self.rect.centerx -= self.speed


class Bullet(pygame.sprite.Sprite):
    def __init__(self, init_pos):
        pygame.sprite.Sprite.__init__(self)
        self.image = pygame.image.load('resources/image/bullet.png')
        self.rect = self.image.get_rect()
        self.rect.midtop = init_pos
        self.speed = 10
        self.walk = 0

    def move(self, button_flag):
        if button_flag == 1:
            self.rect.centerx -= self.speed
        elif button_flag == 0:
            self.rect.centerx += self.speed
        elif button_flag == 2:
            self.rect.centery += self.speed
        elif button_flag == 3:
            self.rect.centery -= self.speed
            # self.rect.centery += self.speed
            # screen.blit(self.image,self.rect)
            # pygame.display.update()


class Player(pygame.sprite.Sprite):
    def __init__(self):
        pygame.sprite.Sprite.__init__(self)
        self.image = pygame.image.load('resources/image/down-1.png')
        self.rect = self.image.get_rect()
        self.rect.center = first_location
        self.is_hit = False
        self.speed = 15
        self.down = 0
        self.left = 0
        self.right = 0
        self.up = 0
        # print self.rect.center

    def turn(self, distance):
        center = self.rect.center
        if distance == 2:
            if self.down > 3:
                self.down = 0
            self.image = pygame.image.load(Player_image_down[self.down])
            self.rect = self.image.get_rect()
            self.rect.center = center
            self.down += 1
            # screen.blit(player.image, player.rect)
        elif distance == 0:
            if self.left > 3:
                self.left = 0
            self.image = pygame.image.load(Player_image_left[self.left])
            self.rect = self.image.get_rect()
            self.rect.center = center
            self.left += 1
        elif distance == 3:
            if self.up > 3:
                self.up = 0
            self.image = pygame.image.load(Player_image_up[self.up])
            self.rect = self.image.get_rect()
            self.rect.center = center
            self.up += 1
        elif distance == 1:
            if self.right > 3:
                self.right = 0
            self.image = pygame.image.load(Player_image_right[self.right])
            self.rect = self.image.get_rect()
            self.rect.center = center
            self.right += 1

    def move(self, temper):
        temper = int(temper)
        if temper == 0:
            for temp in range(1, 10):
                self.rect.centerx -= 3
            print self.rect.centerx, self.rect.centery
        if temper == 1:
            self.rect.centerx += self.speed
            print self.rect.centery
        if temper == 2:
            self.rect.centery -= self.speed
            print self.rect.centerx, self.rect.centery
        if temper == 3:
            self.rect.centery += self.speed
        if 0 > self.rect.centerx or self.rect.centerx > screen.get_width():
            self.rect.centerx = -self.rect.centerx
        if 0 > self.rect.centery or self.rect.centery > screen.get_height():
            self.rect.centery = -self.rect.centery

    def shoot(self):
        bullet = Bullet(self.rect.midtop)
        Bullets.append(bullet)

__author__ = 'Administrator'
import pygame

Window_width = 1365
Window_height = 768
screen = pygame.display.set_mode((Window_width, Window_height))
first_location = [screen.get_width() / 2, screen.get_height() / 2]
Player_image_up = ['resources/image/up-1.png', 'resources/image/up-2.png', 'resources/image/up-3.png',
                   'resources/image/up-4.png']
Player_image_down = ['resources/image/down-1.png', 'resources/image/down-2.png', 'resources/image/down-3.png',
                     'resources/image/down-4.png']
Player_image_left = ['resources/image/left-1.png', 'resources/image/left-2.png', 'resources/image/left-3.png',
                     'resources/image/left-4.png']
Player_image_right = ['resources/image/right-1.png', 'resources/image/right-2.png', 'resources/image/right-3.png',
                      'resources/image/right-4.png']
Enemy_image = ["resources/image/zm-1.png", "resources/image/zm-2.png"]
Bullets = []

首先，初始化了屏幕的大小，并且设置了图片资源。

class Enemy(pygame.sprite.Sprite):
    def __init__(self, init_pos):
        pygame.sprite.Sprite.__init__(self)
        self.image = pygame.image.load("resources/image/zm-2.png")
        self.rect = self.image.get_rect()
        self.rect.topleft = init_pos
        self.speed = 2
        self.down_index = 0
        self.walk = 0

    def move(self):
        topleft = self.rect.topleft
        if self.walk > 40:
            self.walk = 0
            self.image = pygame.image.load("resources/image/zm-2.png")
        if self.walk == 20:
            self.image = pygame.image.load("resources/image/zm-1.png")
        self.rect = self.image.get_rect()
        self.rect.topleft = topleft
        self.walk += 1
        self.rect.centerx -= self.speed

怪物类设置了一个move函数，在初始化里设定了一个walk的值，能让在自增的过程中，不断的切换图片。

就是这样的两张图片。

class Bullet(pygame.sprite.Sprite):
    def __init__(self, init_pos):
        pygame.sprite.Sprite.__init__(self)
        self.image = pygame.image.load('resources/image/bullet.png')
        self.rect = self.image.get_rect()
        self.rect.midtop = init_pos
        self.speed = 10
        self.walk = 0

    def move(self, button_flag):
        if button_flag == 1:
            self.rect.centerx -= self.speed
        elif button_flag == 0:
            self.rect.centerx += self.speed
        elif button_flag == 2:
            self.rect.centery += self.speed
        elif button_flag == 3:
            self.rect.centery -= self.speed

子弹类添加了在不同移动方向上的不同移动方法，可以向左右两个方向发射。

（发射飞剑！）

class Player(pygame.sprite.Sprite):
    def __init__(self):
        pygame.sprite.Sprite.__init__(self)
        self.image = pygame.image.load('resources/image/down-1.png')
        self.rect = self.image.get_rect()
        self.rect.center = first_location
        self.is_hit = False
        self.speed = 15
        self.down = 0
        self.left = 0
        self.right = 0
        self.up = 0
        # print self.rect.center

    def turn(self, distance):
        center = self.rect.center
        if distance == 2:
            if self.down > 3:
                self.down = 0
            self.image = pygame.image.load(Player_image_down[self.down])
            self.rect = self.image.get_rect()
            self.rect.center = center
            self.down += 1
            # screen.blit(player.image, player.rect)
        elif distance == 0:
            if self.left > 3:
                self.left = 0
            self.image = pygame.image.load(Player_image_left[self.left])
            self.rect = self.image.get_rect()
            self.rect.center = center
            self.left += 1
        elif distance == 3:
            if self.up > 3:
                self.up = 0
            self.image = pygame.image.load(Player_image_up[self.up])
            self.rect = self.image.get_rect()
            self.rect.center = center
            self.up += 1
        elif distance == 1:
            if self.right > 3:
                self.right = 0
            self.image = pygame.image.load(Player_image_right[self.right])
            self.rect = self.image.get_rect()
            self.rect.center = center
            self.right += 1

    def move(self, temper):
        temper = int(temper)
        if temper == 0:
            for temp in range(1, 10):
                self.rect.centerx -= 3
            print self.rect.centerx, self.rect.centery
        if temper == 1:
            self.rect.centerx += self.speed
            print self.rect.centery
        if temper == 2:
            self.rect.centery -= self.speed
            print self.rect.centerx, self.rect.centery
        if temper == 3:
            self.rect.centery += self.speed
        if 0 > self.rect.centerx or self.rect.centerx > screen.get_width():
            self.rect.centerx = -self.rect.centerx
        if 0 > self.rect.centery or self.rect.centery > screen.get_height():
            self.rect.centery = -self.rect.centery

    def shoot(self):
        bullet = Bullet(self.rect.midtop)
        Bullets.append(bullet)

修改了turn函数让图片不断切换的，在字符数组里不断的进行切换图片，做出人物（李逍遥）走路的样子。

（利用图片的反复切换）

2.主函数体的修改：

import random

__author__ = 'Administrator'

from pygame.locals import *
from Class import *
from sys import exit


background_image_filename = 'resources/image/gamestart.png'
start_image = 'resources/image/bg2.png'
dead_image = 'resources/image/dead.png'

Score = 0
x = 0
y = 0
pygame.init()
pygame.mixer.init()
background = pygame.image.load(background_image_filename).convert()
pygame.key.set_repeat(100, 100)
clock = pygame.time.Clock()

pygame.mixer.music.load("resources/music/butterflylove.mp3")# 初始化背景音乐
pygame.mixer.music.set_volume(0.3)
pygame.mixer.music.play(-1)

button_music = pygame.mixer.Sound("resources/music/bullet.wav")# 初始化发射音乐
button_music.set_volume(10)
# music

def Waitkey():
    while True:
        for event in pygame.event.get():
            if event.type == QUIT:
                exit()
            if event.type == KEYDOWN:
                if event.key == K_ESCAPE:  # pressing escape quits
                    exit()
                if event.key == K_RETURN:
                    return
# font
flag = 0
button_flag = 0
enemies = []
enemies_down = []
enemy_frequency = 0
running = True
while running:
    clock.tick(60)　　　　# 强置设定为不超过60帧每秒
    if enemy_frequency % 50 == 0:
        enemy1_pos = [screen.get_width(), random.randint(0, screen.get_height())]# 在屏幕的右侧随机生成怪物
        enemy1 = Enemy(enemy1_pos)
        enemies.append(enemy1)　　　　　　　　　　　　　　　　
    enemy_frequency += 1
    if enemy_frequency >= 100:
        enemy_frequency = 0
    for event in pygame.event.get():
        if event.type == QUIT:
            exit()
        if event.type == KEYDOWN:
            if flag == 0:
                if event.key == pygame.K_1:
                    background = pygame.image.load(start_image).convert()
                    player = Player()
                    print screen.get_width()
                    print screen.get_height()
                    flag = 1
            elif event.key == pygame.K_4:
                exit()
            elif event.key == pygame.K_RIGHT:　　　　　　　　　　　　# 分别有不同的移动方向
                if flag == 1:
                    player.turn(1)
                    player.move(1)
                    button_flag = 0
                    # flag == 1
                    print "buttonflag" and button_flag
            elif event.key == pygame.K_LEFT:
                if flag == 1:
                    player.turn(0)
                    player.move(0)
                    button_flag = 1
                    print "buttonflag" and button_flag
            elif event.key == pygame.K_UP:
                if flag == 1:
                    player.turn(3)
                    player.move(2)
                    button_flag = 3
                    # flag == 1
            elif event.key == pygame.K_DOWN:
                if flag == 1:
                    player.turn(2)
                    player.move(3)
                    button_flag = 2
            elif event.key == pygame.K_x:
                if flag == 1:
                    player.shoot()
                    button_music.play()
                    print("shoot")
    screen.blit(background, (x, y))
    if flag == 1:
        score_font = pygame.font.Font(None, 50)　　　　　　　　　　　　　　　　　　# 初始化在左上角的score分数
        score_surf = score_font.render("Score: " + str(Score), 1, (0, 0, 0))
        screen.blit(score_surf, [10, 10])
        screen.blit(player.image, player.rect)
        for enemy in enemies:
            enemy.move()
            screen.blit(enemy.image, enemy.rect)
            if enemy.rect.left < 0:
                enemies.remove(enemy)
                break
            if pygame.sprite.collide_circle(enemy, player):
                enemies_down.append(enemy)
                enemies.remove(enemy)
                # player.is_hit = True
                Score -= 1　　　　　　　　　　　　　　　　　　　　　　# 每次人物和怪物碰撞的时候分数就会-1
                # Game_Over()
                break
        for bullet in Bullets:
            bullet.move(button_flag)
            screen.blit(bullet.image, bullet.rect)
            for enemy in enemies:
                if pygame.sprite.collide_circle(bullet, enemy):
                    enemies_down.append(enemy)
                    enemies.remove(enemy)
                    Bullets.remove(bullet)
                    Score += 1　　　　　　　　　　　　　　　　　　　　　　# 然后只要子弹和怪物碰撞子弹会消失然后怪物消失，分数+1
                    break
            if bullet is not None:
                if bullet.rect.bottom < 0 or bullet.rect.centerx > screen.get_width() or bullet.rect.centerx < 0:
                    Bullets.remove(bullet)
        if Score < -10:
            background_dead = pygame.image.load(dead_image).convert()　　　　# -10分以下就会播放失败图片然后退出
            screen.blit(background_dead, (x, y))
    pygame.display.update()
    if flag == 0:
        pygame.display.update()

（死亡的界面）

注释里写的很详细了哦，这次改完之后会出现可随按键移动的子弹类似飞剑的效果哦！

好了第二篇就是这样，喜欢就点赞吧，=-=！

项目的github地址： https://github.com/lfkdsk/BrainHole_pygame