ceph/src/boost/libs/poly_collection/example/rolegame.hpp

   1 /* Copyright 2016-2017 Joaquin M Lopez Munoz.
   2  * Distributed under the Boost Software License, Version 1.0.
   3  * (See accompanying file LICENSE_1_0.txt or copy at
   4  * http://www.boost.org/LICENSE_1_0.txt)
   5  *
   6  * See http://www.boost.org/libs/poly_collection for library home page.
   7  */
   8
   9 #ifndef BOOST_POLY_COLLECTION_EXAMPLE_ROLEGAME_HPP
  10 #define BOOST_POLY_COLLECTION_EXAMPLE_ROLEGAME_HPP
  11
  12 #if defined(_MSC_VER)
  13 #pragma once
  14 #endif
  15
  16 /* entities of a purported role game used in the examples */
  17
  18 #include <iostream>
  19 #include <string>
  20 #include <utility>
  21
  22 //[rolegame_1
  23 struct sprite
  24 {
  25   sprite(int id):id{id}{}
  26   virtual ~sprite()=default;
  27   virtual void render(std::ostream& os)const=0;
  28
  29   int id;
  30 };
  31 //]
  32
  33 //[rolegame_2
  34 struct warrior:sprite
  35 {
  36   using sprite::sprite;
  37   warrior(std::string rank,int id):sprite{id},rank{std::move(rank)}{}
  38
  39   void render(std::ostream& os)const override{os<<rank<<" "<<id;}
  40
  41   std::string rank="warrior";
  42 };
  43
  44 struct juggernaut:warrior
  45 {
  46   juggernaut(int id):warrior{"juggernaut",id}{}
  47 };
  48
  49 struct goblin:sprite
  50 {
  51   using sprite::sprite;
  52   void render(std::ostream& os)const override{os<<"goblin "<<id;}
  53 };
  54 //]
  55
  56 //[rolegame_3
  57 struct window
  58 {
  59   window(std::string caption):caption{std::move(caption)}{}
  60
  61   void display(std::ostream& os)const{os<<"["<<caption<<"]";}
  62
  63   std::string caption;
  64 };
  65 //]
  66
  67 //[rolegame_4
  68 struct elf:sprite
  69 {
  70   using sprite::sprite;
  71   elf(const elf&)=delete; // not copyable
  72   elf(elf&&)=default;     // but moveable
  73   void render(std::ostream& os)const override{os<<"elf "<<id;}
  74 };
  75 //]
  76
  77
  78 #endif