ex45 自己制作一个游戏

好难，于是我就基本照着ex43的作者写的游戏写了一遍，多加了tips模块和一个格斗系统的类。

目前存在的问题是

1、我希望能够随时调用help秘笈。但是没能够实现；

2、class FightSystem()实在是太乱了，我都受不了了，可是又暂时不想花时间去完善，毕竟这个界面已经快看吐了。

3、缺少好的注释

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下面学习一下ex45里边提到的一些编程风格，习惯方面的东西。

1、函数风格

• 函数命名的时候可以命名成一个动词
• 要让函数保持小巧精巧，看看你的FightIngSystem，成啥样了都。

2、类的风格

• 类的命名使用驼峰式大小写：FightIngSystem；函数命名添加下划线：fighting_system;
• __init__函数不应该做太多事，越简单越好；
• 用一致的方式处理函数参数。如果类需要处理users、dogs、和cats，就保持这个顺序，所有函数的顺序都保持(users, dogs, cats)
• 永远使用 class Name (object) 的方式定义类，否则会遇到大麻烦（虽然我并不知道还能用什么方式来定义类）

3、代码风格

• 为了方便阅读，要在自己的代码字符之间留下一些空白。方便大脑通过空白和垂直对齐的位置来扫描和区隔视觉元素。
• 一定要注意代码的易读性！如果一段代码你无法朗读出来，那么这个代码的可读性可能就有问题。
• 如果喜欢某个人的代码风格，可以试着去模仿，直到哪天找到自己的风格；
• 不要把风格太当回事儿，因为程序员工作的一部分就是和别人写的代码打交道。严以律己，宽以待人。

4、好的注释

• 写注释的时候写清楚“为什么要这样做”
• 注释要短小精悍，并且在代码更改后记得更新。
• That'it .

以下是代码。只能保证基本运行，很多方面还未完善。只是最近看这个实在看腻了，等后边有什么时间我再来修改一下。

#-*- coding: UTF-8 -*-
from random import randint
from sys import exit
import tips
import fighting_system 


class Scene(object):

    def enter(selt):
        print "It's just a base class for for different scenes, to make them easy to recognize."
        exit(1)

class Engine(object):#需要实例化并输入参数，启动对象是整个地图。#地图要有的功能：切换地图，打开地图
    def __init__(self,scene_map):
        self.scene_map = scene_map #这是要初始化的，规矩。
    def play(self):
        current_scene = self.scene_map.opening_scene()#对象是整个地图嘛，那么在通过实例化给scene_map之后，自然就是直接调用#那么自然最后就是返回到某个具体的scene了。
        #play的作用在于在map不断切换地图之后，需要再切换之后随即打开
        while True:
            print "\n------------"
            next_scene_name = current_scene.enter()
            current_scene = self.scene_map.next_scene(next_scene_name)
        
        #遗留问题：1、以第一个场景子类为例，为什么后边调用的是enter函数，而不是直接进入。另外，为什么if语句什么的是放在定义的函数外面。放在函数中会出现什么情况？
        
        
class FigthingSystem(Scene):

            
    def enter(self):
        hero_skill_dict = {"A":2,
                   "B":4,
                   "C":6,
                   "D":8
        }    
        Gothons_skill_dict = {"a":1,
                      "b":3,
                      "c":5,
                      "d":7
        }
        hero_skills_list = hero_skill_dict.keys()
        Gothon_skills_list = Gothons_skill_dict.keys()
        print "OK, now you can start fighting~~"
        hero_blood = 10
        Gothon_blood = 8
        while hero_blood > 0 and Gothon_blood > 0:
            print "Here are your skills:\n%s"%hero_skills_list
            print "Your blood:%s ; Gothon's blood :%s" %(hero_blood,Gothon_blood)
            hero_hit = raw_input(">")
            if hero_hit in hero_skills_list:
                Gothon_hit = Gothon_skills_list[randint(0,len(Gothon_skills_list)-1)]
                print "Gothon:%s" %Gothon_hit
                hero_value = hero_skill_dict[hero_hit]
                Gothon_value = Gothons_skill_dict[Gothon_hit]
                if hero_value > Gothon_value:
                    d = hero_value - Gothon_value
                    Gothon_blood = Gothon_blood - d
                
                elif hero_value < Gothon_value:
                    d = Gothon_value - hero_value
                    hero_blood = hero_blood -d
                print "Your blood:%s ; Gothon's blood :%s" %(hero_blood,Gothon_blood)
            else:
                print "Illeagle input, please try again."
    
        if hero_blood > 0 and Gothon_blood <=0:
            print "Hey,good job, you beats the Gothon,and you can go through the door now."
            return 'weapon_aromory'
        elif hero_blood <= 0 and Gothon_blood > 0:
            print "I'm sorry you are defeated,game over."
            print "GAME OVER!!!"*5
            return 'death'
        

        
                
        
#打出来的情况比较糟糕，后期调试主意完善        
class Death(Scene):

    greeting = [
        "You really suck at this,maybe you can restart again.",
        "You know what?You died hahahahaha,stand up and have a rest,if you wanna try it again,go ahead.",
        "Your mom is calling you for dinner, put down your keyboard,cause you've already died.",
        "Sing a song ,I'll let you back to the game.HAHAHA you know it's a joke,byebye."
    ]
    
    def enter(self):
        print Death.greeting[randint(0,len(self.greeting)-1)]
        exit(1)
    
class CentralCorridor(Scene):
#实现功能：1、介绍游戏背景；2、介绍本场景情况；3、进入格斗系统；4、能够调用秘笈
    def enter(self):
        print "The Gothons of planet #25 have invaded your ship and destored"
        print "your entire crew.You are the last surviving member and your last"#每行不超过79个字符，这是规定
        print "mission is to get the bomb from the weapons armory,put it in the"
        print "bridge,destory the ship befor you escape with a escape pod."
        print "OK,now start your journey,Bravo."
        raw_input("Enter any key to continue >")
        print "You are running down the centeral corridor to the weapons armory"
        print "a Gothon jumps out,red scary skin, the same heght as humanbeing"
        print "He's blocking the door to the weapons armory and about to pull"
        print "a weapon to blast you."
        nothing = raw_input(">")
        print "If you don't know how to do,enter 'help',and you will get some tips."#Q:如果想要实现任何时候输入help都能调用tips，该怎么做？
        ask = raw_input(">")
        if ask == "help":
            print tips.Centcoridor_tip()
        else:
            pass
        action = raw_input ("run or fight>")
    
        if action == "run":
            print "You are scared,so just turn around and run desprately."
            print "Oh the Gothon is gonna shoot you and 'BANG!', it missed the target."
            print "How lucky are you ,so you can keep running,and......"
            print "\n"
            print "OMG, there is no more road tu run into,and the Gothon holds his weapon again."
            print "Do you wanna ask for help,I'm sure you didn't forget how to do."
        #个人认为这段有点啰嗦
            ask = raw_input(">")
            if ask == "help":
                print tips.Centcoridor_tip()
            else:
                pass
        #这里可以提示需不需要看下秘笈，然后调用秘笈模块
            print "BANG!BANG,BANG,BANG!"
            return "death"
        elif action == "fight":
            return 'fighting_system'
            
            

class WeaponAromory(Scene):
    def enter(self): 
        print "You do a dive roll into the Weapon Aromory,crouch and scan the room."
        print "for more Gothons that might be hiding. It's dead quiet, to quiet."
        print "You stand up and run to the far side of the room and find the "
        print "neutron bomb in its container. There is a keypad lock on the box"
        print "and you need the code to get the bomb out.If you get the code"
        print "Wrong for 10 times then the lock closes forever and you can't"
        print "get the bomb.the code is 3 digit"
        print "and you still got a  chance to ask for help"
        help = raw_input("help or not>")
        if help == "yes":
            print tips.weaponaromory_tip()
        else:
            pass
        code = "%d%d%d" %(9,4,randint(1,9))
        guess = raw_input ("[keypad]>")
        guesses = 0
        
        while guess != code and guesses < 10:
            guesses += 1
            print "BZZZZEDDDD"
            guess = raw_input ("[keypad]")
            
        if guess == code:
            print "The container is open and the seal breaks.Let the gas out."
            print "You grab the neutron bomb and run as fast as you can to the"
            print "bridge where you must place it in the right spot."
            return 'the_bridge'
        else:
            print "The lock buzzes one last time and then you here a sickening."
            print "melting sound as the mechanism is fuesd together."
            print "You decide to sit there and finally the Gothon blow up the"
            print "ship from their ship and you die."
            return 'death'

class TheBridge(Scene):
    def enter(self):
        print "You burst onto the bridge with the bomb"
        print "and surprise 5 Gothons who are trying to "
        print "take control of the ship.They see your bomb and "
        print "don't want to set it off."
        
        action = raw_input(">")
        if action  == "throw the bomb":
            print "In a panic you throw the bomb at the group of Gothons"
            print "and make a leap to the door."
            print "But a Gothon shots you as you trun your back and"
            print "try to run away.You died, but the good thing is"
            print "the ship will be blasted by the bommb."
            return 'death'
        elif action == "slowly place the bomb":
            print "You point your blaster at your bomb and the Gothons"
            print "put their hands up and start to sewat."
            print "You jump back through the door punch the close"
            print "button.Now the bomb is placed and you run to the escape pod."
            return 'escape_pod'
        else:
            "illeagal inpout."
            return'the_bridge'
            
            
class EscapePod(Scene):
    def enter(self):
        print "Now as you've blow up the bridege,your mission in completed."
        print "You should take a escape pod to leave here.Now there parks 3 escape pod,"
        print "NO.1,NO.2 and NO.3. Two of them are broken and you need to "
        print "choose the good one.Come on, make the choice."
        right_pod = randint(1,3)
        choice = int(raw_input("escape_pod>"))
        if choice == right_pod:
            print "Congratulations!You win!"
        elif choice != right_pod:
            print "Well ,you chose a bad escape pod and you just sank with it."
            return 'death'
            
    

class Map:
    scenes = {
        'central_corridor': CentralCorridor(),
        'weapon_aromory': WeaponAromory(),
        'the_bridge': TheBridge(),
        'escape_pod': EscapePod(),
        'death': Death(),
        'fighting_system': FigthingSystem()
    }
    
    def __init__(self,start_scene):
        self.start_scene = start_scene
    
    def next_scene(self,scene_name):
        return Map.scenes.get(scene_name)
    
    def opening_scene(self):
        return self.next_scene(self.start_scene)
        
    
a_map = Map('central_corridor')
a_game = Engine(a_map)
a_game.play()

#-*- coding: UTF-8 -*-

def Centcoridor_tip():
    tip = open('tip_for_centeralcorridor.txt')
    for line in  tip.readlines():
        print line
    #遗留问题：为什么最后会打印一个“none"，如果想要去掉该怎么做？

    


def weaponaromory_tip():
    tip = open('tip_for_weaponaromory.txt')
    for line in tip.readlines():
        print line