public IEnumerable <T> Create(int level)
{
// use the actual total in case the data adds up to more than 100
float totalOdds = Math.Max(TotalOdds, Choices.Sum((choice) => choice.Odds));
float choiceValue = Rng.Float(TotalOdds);
IDrop <T> dropped = null;
// count through to find the chosen one
foreach (DropChoice choice in Choices)
{
choiceValue -= choice.Odds;
if (choiceValue <= 0)
{
dropped = choice.Drop;
break;
}
}
// drop it if we have one
if (dropped != null)
{
foreach (var item in dropped.Create(level))
{
yield return(item);
}
}
}
public override void AfterDamage(NotNull <Action> action, NotNull <Hit> hit)
{
// let the base handle elements
base.AfterDamage(action, hit);
//### bob: handle sustains and a chance to resist?
// handle the flags
TryDrain(action, hit.Value.Attack, Stats.Strength, "You feel weak.");
TryDrain(action, hit.Value.Attack, Stats.Agility, "You feel clumsy.");
TryDrain(action, hit.Value.Attack, Stats.Stamina, "You feel tired.");
TryDrain(action, hit.Value.Attack, Stats.Will, "Your conviction falters.");
TryDrain(action, hit.Value.Attack, Stats.Intellect, "You feel stupid.");
TryDrain(action, hit.Value.Attack, Stats.Charisma, "You feel ugly.");
// drain experience
if (hit.Value.Attack.Flags.Has("drain:experience"))
{
// chance to resist
if (Stats.Will.ResistDrain())
{
action.Value.Log(LogType.Resist, this, "{possessive} will sustain[s] {pronoun}.");
}
else
{
// lower by 1% - 5%
float percent = Rng.Float(0.01f, 0.05f);
action.Value.Log(LogType.BadState, this, "{subject} feel[s] {possessive} life draining away.");
LoseExperience(action.Value, Experience.Current * percent);
}
}
}
public IEnumerable <T> Create(int level)
{
foreach (DropChoice choice in Choices)
{
// see if this choice was dropped
if ((choice.Odds == 0) || (Rng.Float(TotalOdds) <= choice.Odds))
{
foreach (var item in choice.Drop.Create(level))
{
yield return(item);
}
}
}
}
private T Random(Func <RareObject, bool> predicate)
{
// collect all of the possible choices
float totalCommonness = 0;
List <RareObject> matches = new List <RareObject>();
foreach (RareObject obj in mObjects)
{
if (predicate(obj))
{
matches.Add(obj);
totalCommonness += obj.Commonness;
}
}
// bail if there are no possibilities
if (matches.Count == 0)
{
return(default(T));
}
// choose one randomly
float choice = Rng.Float(totalCommonness);
foreach (RareObject obj in matches)
{
if (choice <= obj.Commonness)
{
return(obj.Object);
}
choice -= obj.Commonness;
}
// should not get here
throw new Exception("Something is broke in the object selection algo.");
}
