コード例 #1
0
        static void Main(string[] args)
        {
            //This program is a virtual pet program.  The user practices taking care of a virtual pet.
            //The program tracks the status of the pet and gives the user a score which represents their
            //skill at taking care of their pet.

            //Future improvements planned:  update user score in random events
            //                              prevent a random event from occuring twice
            //                              add more random events
            //                              allow a random event to terminate the program


            string input = "";                           // user input
            string userName;                             // user's name
            string petName;                              // pet's name

            string[] menu = new string[10];              // stores menu choices

            int    selectedOption = -1;                  // menu choice (parsed from input)
            int    counter        = 0;                   // counter
            int    randomNumber   = -1;                  // random number
            double score          = 0;                   // user's score
            double number;                               // dummy variable to hold temporary information
            double time, newTime, elapsedTime;           // time variables to determine elapsed time
            double rndTime, newRndTime;                  // elapsed time for random function


            bool quit;                                   // tests whether to quit the program

            VirtualPet myPet = new VirtualPet();         //instantiate a new Virtual Pet
            Random     rnd   = new Random();             // setup random number generator

            userName = Greet();                          // Greet the user and get their name
            petName  = GetPetName(userName);             // Select pet name
            if (petName != "")
            {
                myPet.Name = petName;                    // Set pet name based on user input (unless it is blank)
            }
            petName = myPet.Name;                        // set petName to myPet.Name which will be either default or user input


            //personalize menu choices with name of pet
            //this was setup this way in case I wanted to add more pet options in the future and vary the menu
            //for each different type of pet.  It is not necessary for the program as it is now.
            menu[1] = "  1. Feed " + myPet.Name + ".";
            menu[2] = "  2. Give " + myPet.Name + " water.";
            menu[3] = "  3. Take " + myPet.Name + " out to use the bathroom.";
            menu[4] = "  4. Take " + myPet.Name + "to the park to play.";
            menu[5] = "  5. " + myPet.Name + " isn't feeling well.  Take him to the vet.";
            menu[6] = "  6. Quit";


            time    = DateTime.Now.Hour * 3600 + DateTime.Now.Minute * 60 + DateTime.Now.Second; //get current time
            rndTime = time;
            do
            {
                counter++;
                if (counter > 4)                                   //automatic changes to pet attributes based on time don't start until the 5th loop
                                                                   //this gives the user a chance to get used to the program before it gets more difficult.
                {
                    score       = myPet.Warnings(userName, score); // print warnings if pet is in danger and adjust user score
                    newTime     = DateTime.Now.Hour * 3600 + DateTime.Now.Minute * 60 + DateTime.Now.Second;
                    elapsedTime = newTime - time;                  // calculate elapsed time since last menu entry
                    if (elapsedTime < 0)
                    {
                        elapsedTime = 0;
                    }
                    if (elapsedTime > 20)
                    {
                        elapsedTime = 20;                                      //caps the elapsed time so that changes are not too great
                    }
                    myPet.HungerChange(elapsedTime * 0.2);                     //increase hunger as time goes by
                    myPet.ThirstChange(elapsedTime * 0.2);                     //increase thirst as time goes by
                    myPet.WasteChange(elapsedTime * 0.2);                      //increase waste as time goes by
                    myPet.BoredomChange(elapsedTime * 0.2);                    //increase boredom as time goes by
                    time = newTime;
                }
                quit = myPet.Terminate;                                    // get current terminate status

                if (!quit)
                {
                    myPet.MyPetStatus(userName, score);                       // print pet's current status

                    //set random events
                    randomNumber = rnd.Next(1, 50);                                                                  // pick random number between 1 and 100
                    newRndTime   = DateTime.Now.Hour * 3600 + DateTime.Now.Minute * 60 + DateTime.Now.Second;
                    if ((newRndTime - rndTime) > 15)                                                                 // set minimum frequency of random events in seconds
                    {
                        rndTime = myPet.RandomEvent(randomNumber, newRndTime, userName, myPet.Name, score, rndTime); // get random event
                    }
                    Console.WriteLine();
                    Console.WriteLine("\r\n  Please select an option:\r\n");  // prompt user for menu choice
                    for (int i = 0; i < 7; i++)
                    {
                        Console.WriteLine(menu[i]);                               // print menu choices for user
                    }


                    input          = Console.ReadLine().Trim().ToLower();         // read user input
                    selectedOption = GetInput(input);                             // call method GetInput to validate user input
                }
                else
                {
                    selectedOption = 6;                                          // terminate program if terimate=true
                }


                switch (selectedOption)                                       // perform action based on user input
                {
                case 1:                                                       // feed the pet

                    myPet.HungerChange(-1);
                    Console.Clear();
                    Console.WriteLine("\r\n\t\tThank you for feeding {0}!", myPet.Name);
                    break;

                case 2:                                                       // give pet water

                    myPet.ThirstChange(-1);
                    Console.Clear();
                    Console.WriteLine("\r\n\t\tThank you for giving {0} water!", myPet.Name);
                    break;

                case 3:                                                       // bathroom break!

                    myPet.WasteChange(-0.7);
                    Console.Clear();
                    Console.WriteLine("\r\n\tThank you for letting {0} outside to go potty!", myPet.Name);
                    break;

                case 4:                                                      // play with pet

                    myPet.BoredomChange(-1);
                    myPet.HungerChange(0.2);
                    myPet.ThirstChange(0.4);
                    myPet.SickChange(-0.2);
                    myPet.WasteChange(-0.5);
                    Console.Clear();
                    Console.WriteLine("\r\n\t\t{0} had a wonderful time with you!", myPet.Name);
                    break;

                case 5:                                                     // take pet to vet

                    myPet.SickChange(-2);
                    Console.Clear();
                    number = myPet.Sick;
                    if (number < 5)
                    {
                        Console.WriteLine("\r\n\t{0} feels so much better now.  Thank you!", myPet.Name);
                    }
                    if (number < 8 && number >= 5)
                    {
                        Console.WriteLine("\r\n\t{0} feels much better, but you should propbably\r\n\tkeep a close eye on him.", petName);
                    }
                    if (number >= 8)
                    {
                        Console.WriteLine("\r\n\tThank you for taking {0} to the vet. He is still not feeling well\r\n\tand may need another visit.", petName);
                    }
                    break;

                case 6:                                                     // quit

                    Console.WriteLine("\r\n\tThank you for playing, {0}.  Your final score is:  {1}", userName, score);
                    Console.WriteLine("\r\n\r\n\r\n\r\nPress return to exit...");
                    Console.ReadLine();
                    break;

                default:

                    Console.WriteLine("*** Invalid option selected.\r\n\r\nPress any key to continue...");
                    Console.ReadKey();
                    break;
                }
            } while (selectedOption != 6);
        }