Myujth

In the following code, I'm trying to learn how to get objects to interact with each other, because I feel that's a bit more important than what I have done now which is simply collect a bunch of variables assign to each object.

For fun, what I want these different objects to do is to kill each other. The person named Jack can kill. The other two can not. What I want Jack to do is strike the other two, making them lose 1, 5 or 10 HitPoints multiple times until they are dead, and then set their Alive to false.

I don't know how to even start this, but I think it would be a very fun and interesting exercise.

The most important thing about doing this is learning how one object can directly change something about a different object, just because it can, and that the objects it has then changed, will then suffer a consequence from this action.

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace OOP_Learning

 class Program
 
 static void Main(string args)
 
 Person p1; 
 p1 = new Person("Jack", 27, true, true, 10);

 Person p2;
 p2 = new Person("Vincent", 63, true, false, 10);

 Person p3;
 p3 = new Person("Tim", 13, true, false, 10);

 Console.ReadLine();
 

 
 public class Person
 
 public string Name get; set; 
 public int Age get; set; 
 public bool Alive get; set; 
 public bool AbilityToKill get; set; 
 public int HitPoints get; set; 
 public Person(string name, int age, bool alive, bool abilityToKill, int hitPoints)
 
 HitPoints = hitPoints;
 AbilityToKill = abilityToKill;
 Alive = alive;
 Name = name;
 Age = age;
 
 

You need 2 methods in the Person class.

1. Hit -> This method reduce the HitPoints on self object with each hit. When the HitPoints become Zero, status Alive is set to false.




2. Kill -> This will take person as a parameter and call Hit method on that person till that person is Alive.

Add following methods to Person class:

 public void Hit()
 
 if(Alive)
 
 if(HitPoints > 0)
 
 HitPoints -= 1;
 
 else
 
 Alive = false;
 
 
 

 public bool Kill(Person person)
 
 if(!AbilityToKill)
 
 Console.WriteLine("You don't have ability to kill! You cannont kill 0.", person.Name);
 return false;
 

 while(person.Alive)
 
 person.Hit();
 

 Console.WriteLine("0 is dead.", person.Name);

 return true;
 

Call Kill method in Main method.

 p2.Kill(p3);
 p1.Kill(p2);
 p1.Kill(p3);

Hope this helps!

Is this the kind of thing you mean?

public class Person

 public string Name get; private set; 
 public int Age get; private set; 
 public bool Alive get; private set; 
 public bool AbilityToKill get; private set; 
 public int HitPoints get; private set; 

 public void Hit(int points)
 
 this.HitPoints -= points;
 if (this.HitPoints <= 0)
 
 this.HitPoints = 0;
 this.Alive = false;
 
 

 public Person(string name, int age, bool alive, bool abilityToKill, int hitPoints)
 
 this.HitPoints = hitPoints;
 this.AbilityToKill = abilityToKill;
 this.Alive = alive;
 this.Name = name;
 this.Age = age;
 

Now with the check for AbilityToKill:

public class Person

 public string Name get; private set; 
 public int Age get; private set; 
 public bool Alive get; private set; 
 public bool AbilityToKill get; private set; 
 public int HitPoints get; private set; 

 public int Attack(Person victim, int points)
 
 var hp = victim.HitPoints;
 if (this.AbilityToKill)
 
 victim.HitPoints -= points;
 if (victim.HitPoints <= 0)
 
 victim.HitPoints = 0;
 victim.Alive = false;
 
 
 hp -= victim.HitPoints;
 return hp;
 

 public Person(string name, int age, bool alive, bool abilityToKill, int hitPoints)
 
 this.HitPoints = hitPoints;
 this.AbilityToKill = abilityToKill;
 this.Alive = alive;
 this.Name = name;
 this.Age = age;
 

This can be used like this:

var jack = new Person("Jack", 27, true, true, 10);
var vincent = new Person("Vincent", 63, true, false, 10);
var tim = new Person("Tim", 13, true, false, 10);

var damage_done = jack.Attack(vincent, 20);
Console.WriteLine(damage_done);

The Attack method returns the actual number of hits points reduced by the attack - the damage dealt.

And here's a more strongly-typed version. Using bool for properties isn't always the clearest way to code. Through in some enums and it's clearer.

public class Person

 public string Name get; private set; 
 public int Age get; private set; 
 public Alive Alive get; private set; 
 public AbilityToKill AbilityToKill get; private set; 
 public int HitPoints get; private set; 

 public int Attack(Person victim, int points)
 
 var hp = victim.HitPoints;
 if (this.AbilityToKill == AbilityToKill.Yes)
 
 victim.HitPoints -= points;
 if (victim.HitPoints <= 0)
 
 victim.HitPoints = 0;
 victim.Alive = Alive.No;
 
 
 hp -= victim.HitPoints;
 return hp;
 

 public Person(string name, int age, Alive alive, AbilityToKill abilityToKill, int hitPoints)
 
 this.HitPoints = hitPoints;
 this.AbilityToKill = abilityToKill;
 this.Alive = alive;
 this.Name = name;
 this.Age = age;
 


public enum Alive Yes, No 
public enum AbilityToKill Yes, No 

It's used like this:

var jack = new Person("Jack", 27, Alive.Yes, AbilityToKill.Yes, 10);
var vincent = new Person("Vincent", 63, Alive.Yes, AbilityToKill.No, 10);
var tim = new Person("Tim", 13, Alive.Yes, AbilityToKill.No, 10);

var damage_done = jack.Attack(vincent, 20);
Console.WriteLine(damage_done);