/* Better Simple Shop Coded by jay ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ A simple shop example using classes. This shop will sell you stuff (for freeeee!) BUY ALL THE THINGS! _____________________________________________ Give this a thumbs up if you like the code! USAGE RIGHTS: ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ if you wanna use this in your project, go for it*. A follow would be appreciated! have fun! *please dont just copy and post it here pretending you wrote it _____________________________________________ Note: there is probably a better way to do this! Instructions: ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ **** Compile for best results **** Enter a number to buy an item (1, 2, 3 etc) 1 = Ring 2 = Shirt 3 = Shoes 4 - etc 5 - etc 0 = Quit any input (like letters or symbols) is invalid and user will be prompted to try again. _____________________________________________ */ #include #include #include #include #include //#include #include //#include //#include // For _CrtSetReportMode #include class item { public: item(std::string itemName) : name(itemName) { } std::string getName() { return name; } private: std::string name; }; class shop { public: shop() { init(); } void init(); int itemCount() { return items.size(); } void buyItem(std::string itemName); void sellItem(int itemNumber); std::vector itemList(); private: std::vector items; }; void shop::init() { //default items buyItem("Ring"); buyItem("Shirt"); buyItem("Shoes"); } void shop::buyItem(std::string itemName) { item newItem(itemName); items.push_back(newItem); } void shop::sellItem(int itemNumber) { std::cout << "You brought: " << items[itemNumber - 1].getName() << std::endl << std::endl; items.erase(items.begin() + itemNumber - 1); } std::vector shop::itemList() { std::vector newList; std::vector::iterator iter; for (iter = items.begin(); iter != items.end(); iter++) { newList.push_back(iter->getName()); } return newList; } int getChoice(std::string titleTextToDisplay, std::vector choices) { int userInput; std::cout << titleTextToDisplay << std::endl; std::vector::const_iterator iter; int itemNumber = 1; int numberOfActions = choices.size(); std::ostringstream convert; std::string numberString; std::string message; for (iter = choices.begin(); iter != choices.end(); iter++) { std::cout << "[" << itemNumber << "]: " << (*iter) << std::endl; itemNumber++; } std::cout << std::endl; std::cout << "> "; try { userInput = -1; while(userInput != 0) { std::cin >> userInput; if (std::cin.fail() || std::cin.bad() || !std::cin) { throw 0; } if (userInput < 0 || userInput > numberOfActions) { std::cin.clear(); std::cin.ignore(10000, '\n'); std::cout << "That number was not on the list.\nPlease try again\n"; } else { return userInput; } } } catch (...) { convert << numberOfActions; numberString = convert.str(); message = "ERROR: Input must be an integer between 0 and " + numberString + ".\nQuiting!"; std::vector errorMessage(message.c_str(), message.c_str() + message.size() + 1); puts(reinterpret_cast(errorMessage.data())); return 0; } return 0; } int main() { shop jaysShop; jaysShop.buyItem("More Skills!"); jaysShop.buyItem("Dull Knife"); jaysShop.buyItem("A widget"); jaysShop.buyItem("A shield"); std::string message = "Welcome to Jays shop!\nWhat would you like to buy today?\n[Enter 0 to quit]\n"; bool quit = false; while (!quit) { int choice = getChoice(message, jaysShop.itemList()); if (choice == -1 || choice == 0) { // try again. quit = true; } if (choice != 0) { jaysShop.sellItem(choice); } } std::cout << "BYE!\n"; return 0; }