using System;

namespace Coding.Exercise
{
    abstract class AOESpell
    {
        public int Health { get; private set; }
        public void ApplyDamage(int damage)
        {
            Health -= GetDamage(Unit);
        }
        public abstract float GetDamage(Unit unit);
    }

    public class CustomSpell : AOESpell
    {
        public override void GetDamage(Unit unit)
        {
            Unit units = new unit[];
            foreach(Unit unit in units)
            {
                Health -= Health / 2;
            }
        }
    }

    public class Unit
    {
        int Health;
    }
}