/// <summary>
/// Attack another character. Hits if our role is greater than the
/// opponent's armor class.
/// </summary>
/// <param name='opponent'>Whom we are attacking.</param>
/// <param name='roll'>An int from 1-20.</param>
public AttackResult Attack(Character opponent, int roll)
{
if(opponent == null) {
throw new ArgumentException("opponent cannot be null");
}
Helpers.ValidateD20Value("roll", roll);
var attackerStrengthModifier = this.modifierTable[this.Attacker.Strength - 1];
var modifiedRoll = roll + attackerStrengthModifier;
var modifiedArmorClass = opponent.ArmorClass + this.modifierTable[opponent.Dexterity - 1];
var result = AttackResult.Miss;
var damage = 0;
if(roll == 20) {
result = AttackResult.CriticalHit;
damage = 2 + (2 * attackerStrengthModifier);
}
else if(modifiedRoll >= modifiedArmorClass) {
result = AttackResult.Hit;
damage = 1 + attackerStrengthModifier;
}
if((result == AttackResult.Hit || result == AttackResult.CriticalHit) && damage < 1) {
damage = 1;
}
opponent.HitPoints -= damage;
return result;
}
/// <summary>
/// Initializes a new instance of the <see cref="EverCraft.CombatCalculator"/> class.
/// </summary>
/// <param name='attacker'>
/// The attacking character.
/// </param>
public CombatCalculator(Character attacker)
{
this.Attacker = attacker;
}
