/// <summary>
/// Returns true if the provided CombatEntity has enough resources to use an Ability.
/// </summary>
/// <param name="attacker">The attacking CombatEntity.</param>
/// <param name="ability">The ability being used by the CombatEntity.</param>
/// <returns></returns>
private bool HasEnoughResources(CombatEntity attacker, Ability ability, out string failureReason)
{
failureReason = "";
int actionPointCost = ResourceCalculator.GetTotalActionPointCost(attacker, ability);
int manaCost = ResourceCalculator.GetTotalManaCost(attacker, ability);
int healthCost = ResourceCalculator.GetTotalHealthCost(attacker, ability);
if (attacker.Resources.CurrentActionPoints < actionPointCost)
{
failureReason = BattleErrorWriter.WriteInsufficientActionPoints(attacker, ability);
return(false);
}
if (attacker.Resources.CurrentMana < manaCost)
{
failureReason = BattleErrorWriter.WriteInsufficientMana(attacker, ability);
return(false);
}
if (attacker.Resources.CurrentHealth < healthCost)
{
failureReason = BattleErrorWriter.WriteInsufficientHealth(attacker, ability);
return(false);
}
return(true);
}
/// <summary>
/// Returns a string indicating that the entity cannot use an ability because it doesn't have enough
/// action points.
/// </summary>
/// <param name="entity">The CombatEntity of focus.</param>
/// <param name="ability">The ability being used.</param>
public static string WriteInsufficientActionPoints(CombatEntity entity, Ability ability)
{
int totalActionPointCost = ResourceCalculator.GetTotalActionPointCost(entity, ability);
return($"{entity.Name} does not have enough Action Points to use {ability.Name}. {ability.Name} " +
$"requires {totalActionPointCost} Action Points, {entity.Name} has {entity.Resources.CurrentActionPoints}.");
}
/// <summary>
/// Consumes the resources required to use the ability from the attacker.
/// </summary>
/// <param name="attacker">The CombatEntity using the ability.</param>
/// <param name="ability">The Ability to get consumed resource amounts from.</param>
private static void ConsumeResources(CombatEntity attacker, Ability ability)
{
int actionPointCost = ResourceCalculator.GetTotalActionPointCost(attacker, ability);
int manaCost = ResourceCalculator.GetTotalManaCost(attacker, ability);
int healthCost = ResourceCalculator.GetTotalHealthCost(attacker, ability);
attacker.Resources.CurrentActionPoints -= actionPointCost;
attacker.Resources.CurrentMana -= manaCost;
attacker.Resources.CurrentHealth -= healthCost;
}