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 /* basic usage of boost::base_collection */ 10 11 #include <algorithm> 12 #include <boost/poly_collection/base_collection.hpp> 13 #include <random> 14 #include "rolegame.hpp" 15 main()16int main() 17 { 18 //[basic_base_1 19 //= #include <boost/poly_collection/base_collection.hpp> 20 //= ... 21 //= 22 boost::base_collection<sprite> c; 23 24 std::mt19937 gen{92748}; // some arbitrary random seed 25 std::discrete_distribution<> rnd{{1,1,1}}; 26 for(int i=0;i<8;++i){ // assign each type with 1/3 probability 27 switch(rnd(gen)){ 28 case 0: c.insert(warrior{i});break; 29 case 1: c.insert(juggernaut{i});break; 30 case 2: c.insert(goblin{i});break; 31 } 32 } 33 //] 34 35 auto render=[&](){ 36 //[basic_base_2 37 const char* comma=""; 38 for(const sprite& s:c){ 39 std::cout<<comma; 40 s.render(std::cout); 41 comma=","; 42 } 43 std::cout<<"\n"; 44 //] 45 }; 46 render(); 47 48 //[basic_base_3 49 c.insert(goblin{8}); 50 //] 51 render(); 52 53 //[basic_base_4 54 // find element with id==7 and remove it 55 auto it=std::find_if(c.begin(),c.end(),[](const sprite& s){return s.id==7;}); 56 c.erase(it); 57 //] 58 render(); 59 } 60