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class within a class accessing accessing other class within the parent class

rmxhaha (247)
I have some code
I want to keep my class from doing too many task
I decide to make multiple class with specific task

Just imagine I have this kind of situation
I want to do

 
 
Rooms[0].people[0].buydrink();


but the class doesn't know which vendingMachine is it
how can I make it possible that every person in people array in
for example room[0] know which vendingMachine is in the room ?

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class Room {
	
	class VendingMachine {
		
	} VendingMachine;
	
	class person {
	public:
		void buydrink(){
			/* How can I access vending machine ? */
		}
		
	};
	
	vector<person> people;
};

vector<Room> Rooms;


if I use static it will be like this 

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class Room {
	
	class VendingMachine {
		
	} VendingMachine;
	
	class person {
		static VendingMachine * VM;
	public:
		person( VendingMachine * _VM ){
			VM = _VM;
		}
		
		void buydrink(){
			*VM /*access to VendingMachine*/
		}
		
	};
	
	vector<person> people;
};

vector<Room> Rooms;


but if this is the case. It will only work if there is only 1 Room existed...
So is there any kind of special static ?
or I have to have a pointer for every "person" ?
or are there any better solution ?


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