cmd/factorfactor: initial work

cmd/factorfactor/factor.go

@@ -0,0 +1,77 @@
+package main
+
+import (
+	"log/slog"
+
+	"git.sunturtle.xyz/zephyr/horse"
+	"git.sunturtle.xyz/zephyr/horse/umadump/ism"
+)
+
+// For each gain type from inspiration (stats, caps, aptitudes, skills):
+// find all activated sparks that can give that gain type.
+// Then, find all subsets of effect groups among those sparks
+// that have effects summing to those observed
+// (or more if the .end_info result is maxed),
+// with the restriction that one comes from each spark.
+// Deduplicate permutations.
+// Lastly, find the intersection of possible effects from sparks that appear
+// multiple times.
+//
+// To some extent, we rely on there being no sparks with the random stats effect type,
+// although we also don't know the distribution of stats from overcapped skill hints.
+
+type target struct {
+	spark  *horse.Spark
+	group  int
+	effect horse.SparkEffect
+}
+
+func skilltargets(sparks []horse.Spark) map[horse.SkillID]map[horse.SparkID][]target {
+	r := make(map[horse.SkillID]map[horse.SparkID][]target)
+	for i, sp := range sparks {
+		for j, g := range sp.Effects {
+			for _, e := range g {
+				if e.Target != horse.SparkSkillHint {
+					continue
+				}
+				if r[horse.SkillID(e.Value1)] == nil {
+					r[horse.SkillID(e.Value1)] = make(map[horse.SparkID][]target)
+				}
+				r[horse.SkillID(e.Value1)][sp.ID] = append(r[horse.SkillID(e.Value1)][sp.ID], target{&sparks[i], j, e})
+			}
+		}
+	}
+	return r
+}
+
+func resolveSkills(tab tables, career *ism.WorkIdleSingleMode)
+
+// skillsparks appends all activated sparks that can yield a given skill to r.
+// It assumes that no spark can give multiple skills.
+func skillsparks(tab tables, sparks []ism.Factor, id horse.SkillID, r []*horse.Spark) []*horse.Spark {
+	for _, f := range sparks {
+		sp := tab.sparks[f.FactorID]
+		if sp == nil {
+			// ATM we do generally exclude Carnival Bonus from spark info.
+			// Better to check.
+			slog.Warn("skipped spark", slog.Int("id", int(f.FactorID)))
+			continue
+		}
+		if sparkHasSkill(sp, id) {
+			r = append(r, sp)
+		}
+	}
+	return r
+}
+
+func sparkHasSkill(sp *horse.Spark, id horse.SkillID) bool {
+	for _, g := range sp.Effects {
+		for _, e := range g {
+			if e.Target != horse.SparkSkillHint {
+				continue
+			}
+			return id == horse.SkillID(e.Value1)
+		}
+	}
+	return false
+}