public void Acquire()
{
Debug.Assert(status == ESkillStatus.Learnable);
status = ESkillStatus.Acquired;
// All contradictory skills are now unlearnable
foreach (SkillNode n in antireqs)
{
n.PropagateUnlearnable();
}
// All dependents are one skill closer to being learnable
foreach (SkillNode n in dependents)
{
if (n.status == ESkillStatus.Unlearnable)
{
continue;
}
n.remainingPrereqs--;
// When all prereqs are met the skill is learnable
if (n.remainingPrereqs == 0)
{
GuiOutput.Log(String.Format("{0} is learnable now!", n.type));
n.status = ESkillStatus.Learnable;
}
}
}
private int remainingPrereqs; // Count of unlearnt
public SkillNode(EAbility skillType)
{
type = skillType;
status = ESkillStatus.Learnable;
prereqs = new List <SkillNode>();
antireqs = new List <SkillNode>();
dependents = new List <SkillNode>();
remainingPrereqs = 0;
}
private void PropagateUnlearnable()
{
Debug.Assert(status != ESkillStatus.Acquired);
if (status == ESkillStatus.Unlearnable)
{
return;
}
status = ESkillStatus.Unlearnable;
GuiOutput.Log(String.Format("{0} is unlearnable now!", type));
// All skills that depend on this skill are now unlearnable
foreach (SkillNode n in dependents)
{
n.PropagateUnlearnable();
}
}
public void AddPrereq(SkillNode prereq)
{
prereqs.Add(prereq);
remainingPrereqs++;
status = ESkillStatus.MissingPrereq;
}
