private void CreateMateriaOrdering()
{
if (!MateriaChoices.Any())
{
return;
}
// collect all equip slots and assign canonical order
var equipSlots =
GearChoices.SelectMany(e => e.EquipSlotCategory.PossibleSlots)
.DistinctBy(s => s.Name)
.OrderBy(s => s.Name)
.ToList();
for (var i = 0; i < equipSlots.Count; i++)
{
var s = equipSlots[i];
var grp = GearChoices.Where(e => e.EquipSlotCategory.PossibleSlots.Contains(s));
foreach (var e in grp)
{
MateriaChoices.ForEach(m => materia[s, e, m.Key].BranchingPriority = i);
}
}
}
private void CreateMateriaModel(EquipSlot s, Equipment e)
{
if (!MateriaChoices.Any())
{
return;
}
var gv = gear[s, e];
//TODO: you can probably optimize tons here
Model.AddConstraint(
Expression.Sum(MateriaChoices.Select(m => materia[s, e, m.Key])) <= e.TotalMateriaSlots() * gv,
$"restrict total materia amount to amount permitted for {e} in {s}");
if (e.IsAdvancedMeldingPermitted)
{
if (MateriaChoices.Any(m => MainStats.Contains(m.Key.BaseParam.Name)))
{
Model.AddConstraint(
Expression.Sum(
MateriaChoices.Where(m => MainStats.Contains(m.Key.BaseParam.Name))
.Select(m => materia[s, e, m.Key])) <= e.FreeMateriaSlots * gv,
$"restrict advanced melding for mainstat materia to amount of slots in {e} in {s}");
}
if (MateriaChoices.Any(m => !m.Value))
{
Model.AddConstraint(
Expression.Sum(
MateriaChoices.Where(m => !m.Value).Select(m => materia[s, e, m.Key])) <=
(e.FreeMateriaSlots + SolverConfig.OvermeldThreshold) * gv,
$"restrict regular materia amount to amount permitted for {e} in {s}");
}
}
// SIMPLIFICATION: ignoring whether materia fits; doesn't matter anyway
foreach (var matGrp in MateriaChoices.GroupBy(m => m.Key.BaseParam))
{
var bp = matGrp.Key;
var remCap = e.GetMateriaMeldCap(bp, true);
if (remCap == 0)
{
continue;
}
// we need to constrain against min(remaining cap, melded materia) to account for stat caps
var cv = cap[s, e, bp];
Model.AddConstraint(cv <= remCap * gv,
$"cap stats using {e}'s meld cap for {bp} in slot {s}");
var maxRegularMat = matGrp.MaxBy(f => f.Key.Value).Key;
var maxAdvancedMat = maxRegularMat;
if (e.IsAdvancedMeldingPermitted)
{
maxAdvancedMat = matGrp.Where(m => m.Value).MaxBy(f => f.Key.Value).Key;
}
// need hash-set here for uniqueness
Model.AddConstraint(
cv <=
Expression.Sum(
new HashSet <MateriaItem> {
maxRegularMat, maxAdvancedMat
}
.Select(m => m.Value * materia[s, e, m])),
$"cap stats using used {bp} for {e} in slot {s}");
StatExprs.AddExprToDict(bp, cv);
}
}