Amatory1107@ukr.net

HomeWork5/Igor_Vyhovanets_Five_hometaskcpp 2 копія.cpp

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+#include <functional>
+#include <iostream>
+#include <random>
+#include <string>
+
+// prototypes - for better code flow in the first part
+std::string *generate_deck();
+void show_deck();
+
+/*************************** Generate 52 Cards Deck - Not related to stack data structure **********************/
+
+const size_t DECK_SIZE = 52;
+const std::string *DECK = generate_deck();
+
+// generate 52 cards deck on a heap
+std::string *generate_deck() {
+  // Card values: 2 -> Ace
+  const size_t VALUE_COUNT{13};
+  std::string values[VALUE_COUNT]{"2", "3",  "4", "5", "6", "7", "8", "9", "10", "J", "Q", "K", "A"};
+  // Card symbols: Spade, Heart, Diamond, Club
+  const size_t SYMBOL_COUNT{4};
+  std::string symbols[SYMBOL_COUNT]{"\u2660", "\u2665", "\u2666", "\u2663"};
+  // Allocate memory for 52 card deck
+  std::string *deck = new std::string[DECK_SIZE];
+  // Fill deck
+  for (size_t i{0}; i < SYMBOL_COUNT; ++i) {
+    for (size_t j{0}; j < VALUE_COUNT; ++j) {
+      deck[i * VALUE_COUNT + j] = values[j] + symbols[i];
+    }
+  }
+  return deck;
+}
+
+// display the generated deck - for optional use / testing
+void show_deck() {
+  std::cout << "----------------------------------------------------\n";
+  std::cout << "\t\t\tDECK\n";
+  for (size_t i{0}; i < DECK_SIZE; ++i) {
+    if (i % 13 == 0) {
+      std::cout << "\n";
+    }
+    std::cout << DECK[i] << "  ";
+  }
+  std::cout << std::endl;
+}
+
+// returns a random card from deck
+std::string get_random_card() {
+  std::random_device seed;
+  std::default_random_engine rng(seed());
+  std::uniform_int_distribution<int> distr(0, DECK_SIZE);
+  return DECK[distr(rng)]; // !!!BUG!!! causes BAD ALLOC sometimes. Couldn't find problem.
+}
+
+/******************************************* CARD STACK DATA STRUCTURE *****************************************/
+
+// INTERNAL DATA
+
+const size_t STACK_SIZE{10};
+size_t top_index{0};
+std::string Cards[STACK_SIZE]{};
+
+// FUNCTIONS FOR EXTERNAL USE
+
+inline bool is_empty() { return (top_index == 0 && Cards[0] == "" ? true : false); }
+
+inline bool is_full() { return (top_index == STACK_SIZE ? true : false); }
+
+inline std::string &top() { return (top_index == 0 ? Cards[top_index] : Cards[top_index - 1]); }
+
+void push() {
+  if (is_full()) {
+    std::cout << "Can't push. Stack full\n";
+    return;
+  }
+  Cards[top_index++] = get_random_card();
+}
+
+void pop() {
+  if (is_empty()) {
+    std::cout << "Can't pop. Bottom of stack\n";
+    return;
+  }
+  if (top_index-- == 1) {
+    Cards[0] = "";
+    return;
+  }
+}
+
+void print_stack() {
+  if (is_empty()) {
+    std::cout << "No cards in the stack\n";
+    return;
+  }
+  std::cout << "Cards:\n";
+  for (size_t i{0}; i < top_index; ++i) {
+    std::cout << i + 1 << " : " << Cards[i] << std::endl;
+  }
+}
+
+/***************************************************** MAIN ****************************************************/
+
+void update_top() {
+  if (is_empty()) {
+    std::cout << "Nothing to update\n";
+    return;
+  }
+  std::string &current_top = top();
+  current_top = get_random_card();
+}
+
+void clear_stack() {
+  while (!is_empty()) {
+    pop();
+  }
+  std::cout << "Stack has been flushed\n";
+}
+
+void fill_stack() {
+  if (is_full()) {
+    std::cout << "Stack already full\n";
+    return;
+  }
+  while (!is_full()) {
+    push();
+  }
+  std::cout << "Stack has been filled\n";
+}
+
+enum Options {
+  QUIT,
+  POP,
+  PUSH,
+  SHOW_TOP,
+  PRINT_STACK,
+  UPDATE_TOP,
+  CLEAR_STACK,
+  FILL_STACK,
+  END
+};
+
+std::function<void()> user_commands[END]{
+    pop,
+    push,
+    []() { std::cout << top() << std::endl; },
+    print_stack,
+    update_top,
+    clear_stack,
+    fill_stack,
+    []() { std::cout << "Unknown command. Try again\n"; }};
+
+void menu_text() {
+  std::cout << "---------------------------------------------\n";
+  std::cout << "\t\tCARD STACK\n";
+  std::cout << POP << " - Pop\n";
+  std::cout << PUSH << " - Push\n";
+  std::cout << SHOW_TOP << " - Show top card\n";
+  std::cout << PRINT_STACK << " - Print the stack\n";
+  std::cout << UPDATE_TOP << " - Update top with new card\n";
+  std::cout << CLEAR_STACK << " - Clear the stack\n";
+  std::cout << FILL_STACK << " - Fill the stack (SOMETIMES ERROR. LINE:58)\n";
+  std::cout << QUIT << " - Quit\n";
+  std::cout << "Enter selection: ";
+}
+
+int main() {
+  while (true) {
+    menu_text();
+    int user_selection;
+    std::cin >> user_selection;
+    if (user_selection == QUIT) {
+      return 0;
+    }
+    if (user_selection > END) {
+      user_selection = END;
+    }
+    user_commands[user_selection - 1]();
+  }
+}