vshylaja

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• Apr 5th, 2008

 

using System;
using System.Collections.Generic;

namespace PCD
{
    public class World
    {
        public static int temperature = 0; // celcius
        public static int windSpeed = 0; // miles per hour
    }

    public abstract class Bird
    {
        private string _TypeName = "Bird";

        private int _MovedDistance = 0; // feet  
   
        private int _HOP_DISTANCE = 0;
        private int _FLY_DISTANCE = 0;
        private int _MIN_TEMP = 0;
        private int _MAX_WIND_SPEED = 0;

        protected int HOP_DISTANCE
        {
            get { return _HOP_DISTANCE; }
            set { _HOP_DISTANCE = value; }
        }
        protected int FLY_DISTANCE
        {
            get { return _FLY_DISTANCE; }
            set { _FLY_DISTANCE = value; }
        }
        protected int MIN_TEMP
        {
            get { return _MIN_TEMP; }
            set { _MIN_TEMP = value; }
        }
        protected int MAX_WIND_SPEED
        {
            get { return _MAX_WIND_SPEED; }
            set { _MAX_WIND_SPEED = value; }
        }

        public string TypeName
        {
            get { return _TypeName; }
            set { _TypeName = value; }
        }

        public int MovedDistance
        {
            get
            {
                return _MovedDistance;
            }
        }

        virtual public void Hop()
        {
            if (World.temperature >= _MIN_TEMP)
                _MovedDistance += HOP_DISTANCE;
        }
        virtual public void Fly()
        {
            if (World.windSpeed <= _MAX_WIND_SPEED)
                _MovedDistance += FLY_DISTANCE;
        }
    }

    public class Penguin : Bird
    {
        public Penguin()
        {
            TypeName = "Penguin";
            HOP_DISTANCE = 2;
            FLY_DISTANCE = 0;
            MIN_TEMP = -60;
        }

        public override void Fly()
        {
            return;
        }
    }

    public class Hawk : Bird
    {
        public Hawk()
        {
            TypeName = "Hawk";
            HOP_DISTANCE = 0;
            FLY_DISTANCE = 100;

            MAX_WIND_SPEED = 40;
        }
    }

    public class Robin : Bird
    {
        public Robin()
        {
            TypeName = "Robin";

            HOP_DISTANCE = 1;
            FLY_DISTANCE = 20;

            MIN_TEMP = 0;
            MAX_WIND_SPEED = 20;
        }
    }

    public class Crow : Bird
    {
        public Crow()
        {
            TypeName = "Crow";

            HOP_DISTANCE = 1;
            FLY_DISTANCE = 30;

            MIN_TEMP = 0;
            MAX_WIND_SPEED = 25;
        }
    }

    public class MainClass
    {
        static void Main(string[] args)
        {
        // TODO: create the birds here

            Penguin peng = new Penguin();
            Hawk hawk = new Hawk();
            Robin robin = new Robin();
            Crow crow = new Crow();

            List<Bird> birds = new List<Bird>();

            birds.Add(peng);
            birds.Add(hawk);
            birds.Add(robin);
            birds.Add(crow);

            World.temperature = 20;
            World.windSpeed = 12;

            // TODO: have each bird fly & hop
            foreach (Bird bird in birds)
            {
                bird.Hop();
                bird.Fly();
            }

            // a storm arrives!
            World.temperature = -10;
            World.windSpeed = 30;

            // TODO: have each bird fly & hop
            foreach (Bird bird in birds)
            {
                bird.Hop();
                bird.Fly();
            }

            // TODO: print total distances
            foreach (Bird bird in birds)
            {
                Console.WriteLine("The {0} moved {1} ft.", bird.TypeName, bird.MovedDistance);
            }
        }
    }
}