public class Weapon : ScriptableObject
{
}

public interface IDamageType
{
 void DamageNPC(NPC enemyToDamage, Weapon weapon, Player player);
 void DamagePlayer(Player playerToDamage, Weapon weapon, NPC npc);
}

public class SwordDamage : IDamageType
{
}

public class BowDamage : IDamageType
{
}