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Vinnik67/hw-13.03.26.cpp

Created March 13, 2026 08:59
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hw-13.03.26.cpp
#include <iostream>
#include <string>
using namespace std;
// Абстрактные продукты
class Herbivore
{
protected:
int weight;
bool life;
public:
Herbivore(int w = 50) : weight(w), life(true) {}
virtual void EatGrass()
{
weight += 10;
cout << "Herbivore eats grass. Weight = " << weight << endl;
}
int GetWeight() const { return weight; }
bool IsAlive() const { return life; }
void Die() { life = false; }
virtual string Name() const = 0;
virtual ~Herbivore() {}
};
class Carnivore
{
protected:
int power;
public:
Carnivore(int p = 60) : power(p) {}
virtual void Eat(Herbivore* h)
{
if (!h->IsAlive())
{
cout << h->Name() << " is already dead." << endl;
return;
}
if (power > h->GetWeight())
{
power += 10;
h->Die();
cout << Name() << " eats " << h->Name()
<< ". Power = " << power << endl;
}
else
{
power -= 10;
cout << Name() << " fails to eat " << h->Name()
<< ". Power = " << power << endl;
}
}
int GetPower() const { return power; }
virtual string Name() const = 0;
virtual ~Carnivore() {}
};
// Конкретные продукты
// Африка
class Wildebeest : public Herbivore
{
public:
string Name() const override { return "Wildebeest"; }
};
class Lion : public Carnivore
{
public:
string Name() const override { return "Lion"; }
};
// Северная Америка
class Bison : public Herbivore
{
public:
string Name() const override { return "Bison"; }
};
class Wolf : public Carnivore
{
public:
string Name() const override { return "Wolf"; }
};
// Евразия
class Elk : public Herbivore
{
public:
string Name() const override { return "Elk"; }
};
class Tiger : public Carnivore
{
public:
string Name() const override { return "Tiger"; }
};
// Абстрактная фабрика
class Continent
{
public:
virtual Herbivore* CreateHerbivore() = 0;
virtual Carnivore* CreateCarnivore() = 0;
virtual ~Continent() {}
};
// Конкретные фабрики
class Africa : public Continent
{
public:
Herbivore* CreateHerbivore() override { return new Wildebeest(); }
Carnivore* CreateCarnivore() override { return new Lion(); }
};
class NorthAmerica : public Continent
{
public:
Herbivore* CreateHerbivore() override { return new Bison(); }
Carnivore* CreateCarnivore() override { return new Wolf(); }
};
class Eurasia : public Continent
{
public:
Herbivore* CreateHerbivore() override { return new Elk(); }
Carnivore* CreateCarnivore() override { return new Tiger(); }
};
// Клиент
class AnimalWorld
{
private:
Herbivore* herbivore;
Carnivore* carnivore;
public:
AnimalWorld(Continent* factory)
{
herbivore = factory->CreateHerbivore();
carnivore = factory->CreateCarnivore();
}
~AnimalWorld()
{
delete herbivore;
delete carnivore;
}
void MealsHerbivores()
{
cout << herbivore->Name() << " starts eating grass..." << endl;
herbivore->EatGrass();
}
void NutritionCarnivores()
{
cout << carnivore->Name() << " starts hunting..." << endl;
carnivore->Eat(herbivore);
}
};
// Тестирование
int main()
{
Continent* africa = new Africa();
Continent* na = new NorthAmerica();
Continent* eurasia = new Eurasia();
AnimalWorld world1(africa);
AnimalWorld world2(na);
AnimalWorld world3(eurasia);
cout << "\n--- Africa ---\n";
world1.MealsHerbivores();
world1.NutritionCarnivores();
cout << "\n--- North America ---\n";
world2.MealsHerbivores();
world2.NutritionCarnivores();
cout << "\n--- Eurasia ---\n";
world3.MealsHerbivores();
world3.NutritionCarnivores();
delete africa;
delete na;
delete eurasia;
return 0;
}
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