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  1. #include <iostream>
  2. #include <vector>
  3. #include <memory>
  4.  
  5. using namespace std;
  6.  
  7. class Entity {
  8. public:
  9.  
  10.     int index;
  11.     Entity() {};
  12.     virtual ~Entity() {};
  13.     virtual void hit() = 0;
  14. };
  15. class Mesh : public Entity {
  16.  
  17. public:
  18.     //int index;     // No don't redefine:  here you'd have two different indexes 
  19.     Mesh(int x) {this->index=x;};
  20.     void hit() override {}   // extraa safety: use override instead of virtual to be sure to override
  21. };
  22.  
  23. int main() {
  24.     vector<unique_ptr<Entity>> objects;
  25.     objects.push_back(unique_ptr<Entity>(new Mesh(35)));
  26.     objects.push_back(unique_ptr<Entity>(new Mesh(10)));
  27.  
  28.     for ( int i = 0 ; i < objects.size() ; i++ )
  29.         cout << objects[i]->index << endl;
  30.  
  31.     return 0;
  32. }
Success #stdin #stdout 0.01s 5444KB
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Standard input is empty
stdout
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35
10
https://ideone.com/GbHPRL
language:
C++14 (gcc 8.3)
created:
3 years ago
visibility:
secret

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