func (p *Plan) FindParent(materials material.MaterialSlice) string {
seed := time.Now().UnixNano()
fmt.Println("Seed:", seed)
rand.Seed(seed) // FIXME use own PRNG instance
ingredients := make([]Ingredient, 0)
for use, amount := range p.Requirements {
possibleMaterials := materials.FindByUse(use)
remainingAmount := amount
for remainingAmount > 0 {
randomAmount := rand.Int63n(int64(remainingAmount)) + 1
randomIndex := rand.Int63n(int64(len(possibleMaterials)))
randomGrade := rand.Int63n(5)
mat := possibleMaterials[randomIndex]
ingredient := Ingredient{mat, use, material.GradeIndexToGrade(randomGrade), uint8(randomAmount)}
ingredients = append(ingredients, ingredient)
remainingAmount -= uint8(randomAmount)
}
}
recipe := &Recipe{p, ingredients}
genes := recipe.genome(materials)
fmt.Println("Genome:", genes)
return genes
}
func (i Ingredient) genome(materials material.MaterialSlice) string {
materialIndex := materials.Index(i.Material)
gradeS := fmt.Sprintf("%d", i.Grade.Index())
amountS := fmt.Sprintf("%d", i.Quantity)
numLength := strconv.FormatInt(int64(len(strconv.FormatInt(int64(len(materials)), 10))), 10)
materialIndexS := fmt.Sprintf("%0"+numLength+"d", materialIndex)
useIndex := 0
for k, use := range i.Material.Uses {
if use == i.Use {
useIndex = k
break
}
}
useIndexS := fmt.Sprintf("%02d", useIndex)
return materialIndexS + gradeS + amountS + useIndexS
}
