lesson 6

lesson_6/Blackjack.hpp

@@ -0,0 +1,121 @@
+#ifndef BLACKJACK_HPP_
+#define BLACKJACK_HPP_
+
+#include <iostream>
+#include <vector>
+
+using namespace std;
+
+class Card
+{
+public:
+	enum rank {ACE = 1, TWO, THREE, FOUR, FIVE, SIX, SEVEN, EIGHT, NINE, TEN, JACK, QUEEN, KING};
+	enum suit {CLUBS, DIAMONDS, HEARTS, SPADES};
+
+	Card(rank r = ACE, suit s, bool ifu = true):  m_Rank(r), m_Suit(s), m_IsFaceUp(ifu) { }
+
+	int GetValue() const
+	{
+		int value = 0;
+		if (m_IsFaceUp)
+		{
+			value = m_Rank;
+			if (value > 10)
+				value = 10;
+		}
+		return value;
+	}
+
+	void Flip()
+	{
+		m_IsFaceUp = !m_IsFaceUp;
+	}
+
+	friend std::ostream& operator<<(std::ostream& s, const Card& aCard);
+
+private:
+	rank m_Rank;
+	suit m_Suit;
+	bool m_IsFaceUp;
+};
+
+class Hand
+{
+public:
+    Hand()
+    {
+    	m_Cards.reserve(7);
+    }
+
+    virtual ~Hand()
+    {
+    	Clear();
+    }
+
+    void Add(Card* pCard)
+    {
+    	m_Cards.push_back(pCard);
+    }
+
+    void Clear()
+    {
+    	std::vector<Card*>::iterator iter = m_Cards.begin();
+		for (iter = m_Cards.begin(); iter != m_Cards.end(); ++iter)
+		{
+			delete *iter;
+			*iter = nullptr;
+		}
+
+		m_Cards.clear();
+    }
+
+    int GetTotal() const
+    {
+    	if (m_Cards.empty() || m_Cards[0]->GetValue() == 0)
+    		return 0;
+
+		int total = 0;
+		std::vector<Card*>::const_iterator iter;
+
+		for (iter = m_Cards.begin(); iter != m_Cards.end(); ++iter)
+			total += (*iter)->GetValue();
+
+		bool containsAce = false;
+		for (iter = m_Cards.begin(); iter != m_Cards.end(); ++iter)
+			if ((*iter)->GetValue() == Card::ACE)
+				containsAce = true;
+
+		if (containsAce && total <= 11) total += 10;
+
+		return total;
+    }
+
+protected:
+    std::vector<Card*> m_Cards;
+};
+
+class GenericPlayer : public Hand
+{
+private:
+    friend ostream& operator<<(ostream& os, const GenericPlayer& aGenericPlayer);
+protected:
+    string m_Name;
+public:
+    GenericPlayer(const string& name = "") : m_Name(name) { }
+
+    virtual ~GenericPlayer();
+
+    virtual bool IsHitting() const = 0;
+
+    bool IsBusted() const
+    {
+    	return (GetTotal() > 21);
+    }
+
+    void Bust() const
+    {
+    	cout << m_Name << " перебор.\n";
+    }
+};
+
+#endif

lesson_6/exercise_1.hpp

@@ -0,0 +1,35 @@
+#ifndef EXERCISE_1_HPP_
+#define EXERCISE_1_HPP_
+
+/*
+ * Едея заключается в том, чтобы проверять
+ * корректность ввода на наличие флага ошибок.
+ * Если good() == true - тогда чтение прошло без ошибок.
+ */
+
+#include <limits>
+
+void exercise_1()
+{
+	int num;
+
+	std::cout << "Введите целое число: ";
+
+	while (true)
+	{
+		std::cin >> num;
+
+		if (std::cin.good() && std::cin.peek() == '\n')
+		{
+			std::cin.ignore(std::numeric_limits<std::streamsize>::max(), '\n');
+			break;
+		}
+		std::cin.clear();
+		std::cout << "Введено некорректное число. Попробуйте ещё раз: ";
+		std::cin.ignore(std::numeric_limits<std::streamsize>::max(), '\n');
+	}
+
+	std::cout << "Введено целое число " << num << std::endl;
+}
+
+#endif

lesson_6/exercise_2.hpp

@@ -0,0 +1,32 @@
+#ifndef EXERCISE_2_HPP_
+#define EXERCISE_2_HPP_
+
+#include <ostream>
+
+//class endline
+//{
+//public:
+//	friend std::ostream& operator<<(std::ostream &out, const endline&);
+//};
+//
+//std::ostream& operator<<(std::ostream &out, const endline& e)
+//{
+//  out << "\n\n";
+//  out.flush();
+//
+//  return out;
+//}
+//
+//endline endll;
+
+template<typename _CharT, typename _Traits>
+inline std::basic_ostream<_CharT, _Traits>&
+endll(std::basic_ostream<_CharT, _Traits>& __os)
+{ return flush((__os.put(__os.widen('\n'))).put(__os.widen('\n'))); }
+
+void exercise_2()
+{
+	std::cout << "Hello" << endll << "world";
+}
+
+#endif

lesson_6/exercise_3.hpp

@@ -0,0 +1,37 @@
+#ifndef EXERCISE_3_HPP_
+#define EXERCISE_3_HPP_
+
+#include "Blackjack.hpp"
+
+class Player : public GenericPlayer
+{
+public:
+    Player(const string& name = "") : GenericPlayer(name) { }
+
+    virtual ~Player() { }
+
+    virtual bool IsHitting() const
+    {
+        cout << m_Name << ", do you want a hit? (Y/N): ";
+        char response;
+        cin >> response;
+        return (response == 'y' || response == 'Y');
+    }
+
+    void Win() const
+    {
+        cout << m_Name <<  " wins.\n";
+    }
+
+    void Lose() const
+    {
+        cout << m_Name <<  " loses.\n";
+    }
+
+    void Push() const
+    {
+        cout << m_Name <<  " pushes.\n";
+    }
+};
+
+#endif

lesson_6/exercise_4.hpp

@@ -0,0 +1,27 @@
+#ifndef EXERCISE_4_HPP_
+#define EXERCISE_4_HPP_
+
+#include "Blackjack.hpp"
+
+class House : public GenericPlayer
+{
+public:
+    House(const string& name = "House") : GenericPlayer(name) { }
+
+    virtual ~House() { }
+
+    virtual bool IsHitting() const
+    {
+        return (GetTotal() <= 16);
+    }
+
+    void FlipFirstCard()
+    {
+        if (!(m_Cards.empty()))
+            m_Cards[0]->Flip();
+        else
+    		cout << "Нет карты для переворота!\n";
+    }
+};
+
+#endif

lesson_6/exercise_5.hpp

@@ -0,0 +1,20 @@
+#ifndef EXERCISE_5_HPP_
+#define EXERCISE_5_HPP_
+
+#include "Blackjack.hpp"
+
+ostream& operator<<(ostream& os, const Card& aCard)
+{
+    const string RANKS[] = {"0", "A", "2", "3", "4", "5", "6", "7", "8", "9",
+                            "10", "J", "Q", "K"};
+    const string SUITS[] = {"c", "d", "h", "s"};
+
+    if (aCard.m_IsFaceUp)
+        os << RANKS[aCard.m_Rank] << SUITS[aCard.m_Suit];
+    else
+        os << "XX";
+
+    return os;
+}
+
+#endif

lesson_6/main.cpp

@@ -0,0 +1,13 @@
+#include <iostream>
+#include "exercise_1.hpp"
+#include "exercise_2.hpp"
+
+using namespace std;
+
+int main()
+{
+	exercise_1();
+	exercise_2();
+
+	return 0;
+}