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  1. #include <iostream>
  2. #include <vector>
  3. #include <memory>
  4. using namespace std;
  5.  
  6.  
  7. class A {
  8. public: 
  9.     virtual void show() { cout<<"A"<<endl; } 
  10.     virtual void collide(shared_ptr<A> a) { cout<<"collide A with "; a->show();  } 
  11.  
  12.     virtual ~A() {}
  13. };
  14.  
  15. class B : public A {
  16. public:
  17. 	void show() override { cout<<"B"<<endl; } 
  18.     void collide(shared_ptr<A> a) override { cout<<"collide B with "; a->show();  } 
  19. };
  20.  
  21. class C : public A {
  22. public:
  23. 	void show() override { cout<<"C"<<endl; } 
  24.     void collide(shared_ptr<A> a) override { cout<<"collide C with "; a->show();  } 
  25. };
  26.  
  27. //bool C::CheckCollision(shared_ptr<B> box);
  28. //bool B::CheckCollision(shared_ptr<C> triangle);
  29.  
  30.  
  31.  
  32.  
  33. int main() {
  34. 	vector<shared_ptr<A>> objects; 
  35. 	objects.push_back (make_shared<A>()); 
  36. 	objects.push_back (make_shared<B>()); 
  37. 	objects.push_back (make_shared<C>()); 
  38.     for (int i = 0; i < objects.size(); i++)
  39.     {
  40.     	objects[i]->show(); 
  41.         for (int j=i; j < objects.size(); j++)
  42.         {
  43.         	objects[i]->collide(objects[j]);
  44.             //objects[i].CheckCollision(objects[j]);
  45.         }
  46.  
  47. }
  48. return 0;
  49. }
Success #stdin #stdout 0s 15240KB
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stdin
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Standard input is empty
stdout
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A
collide A with A
collide A with B
collide A with C
B
collide B with B
collide B with C
C
collide C with C
https://ideone.com/3UeMDZ
language:
C++14 (gcc 8.3)
created:
5 years ago
visibility:
public

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