// inheritance1.cpp
// Developer: Diep Thi Hoang
// Note: Modified from Day 12 'Sams Teach Yourself C++ in 21 Days'
#include <iostream>
using namespace std;

enum BREED {YORKIE, CAIRN, DANDIE, SHETLAND, DOBERMAN, LAB};

// Lop Mammal mo phong dong vat co vu
class Mammal{
public:
    // ham kien tao, ham huy
    Mammal(): itsAge(2), itsWeight(6){}
    ~Mammal(){}

    // ham truy cap bien thanh vien
    int getAge()const { return itsAge; }
    void setAge(int age) { itsAge = age; }
    int getWeight() const { return itsWeight; }
    void setWeight(int weight) { itsWeight = weight; }
    
    // ham khac
    void speak()const { cout << "Mammal sound!\n"; }
    void sleep()const { cout << "shhh. I'm sleeping.\n"; }

protected:
    int itsAge;
    int itsWeight;
};

// Lop Dog mo phong cho
class Dog: public Mammal{
public:
    // ham kien tao, ham huy
    Dog(): itsBreed(YORKIE){}
    ~Dog(){}
    
    // ham truy cap bien thanh vien
    BREED getBreed() const { return itsBreed; }
    void setBreed(BREED breed) { itsBreed = breed; }

    // ham khac
    void speak()const { cout << "Ruff ruff woof woof!\n"; }
    void wagTail()const { cout << "Tail wagging...\n"; }
    void begForFood()const { cout << "Begging for food...\n"; }

private:
    BREED itsBreed;
};

// Lop Cat mo phong meo
class Cat: protected Mammal{
public:
    void speak()const { cout << "Meow meow meow!\n"; }
};

// Lop Horse mo phong ngua
class Horse: private Mammal{
public:
    void speak()const { cout << "Winnie!\n"; }
};

// Chuong trinh chinh
int main(){
    Dog laika;
    laika.speak();
    laika.wagTail();
    cout << "Laika is " << laika.getAge() << " years old\n";
    cin.get();
    return 0;
}