feat(golden): add the possibility of a golden hamster

storage/model/hamster.go

@@ -45,6 +45,7 @@ type Hamster struct {
 	Height            float64    `json:"height"`
 	Alive             bool       `json:"alive"`
 	Sold              bool       `json:"sold"`
+	Golden            bool       `json:"golden"`
 	Gestation         bool       `json:"gestation"`
 	GestationPeriod   int8       `json:"gestation_period"`
 	GestationCooldown int8       `json:"gestation_cooldown"`
@@ -63,7 +64,12 @@ func (h *Hamster) DeterminatePrice() int {
 	if h.Age >= 600 {
 		return 0
 	}
+
 	var price = 50
+
+	if h.Golden {
+		price += 100
+	}
 	if h.Age >= 60 && h.Age <= 300 {
 		var diffAge, quotient int
 		diffAge = 300 - h.Age
@@ -195,6 +201,7 @@ func Born(father *Hamster, mother *Hamster) ([]*Hamster, error) {
 			ThirstLevel:       Full,
 			Alive:             true,
 			Sold:              false,
+			Golden:            false,
 			Gestation:         false,
 			GestationPeriod:   0,
 			GestationCooldown: 30,
@@ -203,6 +210,12 @@ func Born(father *Hamster, mother *Hamster) ([]*Hamster, error) {
 	mother.Child = append(mother.Child, child...)
 	father.Child = append(father.Child, child...)
 
+	var goldenRoll = randNumber(1, 4096)
+	if goldenRoll == 42 {
+		var goldenChild = randNumber(0, numberOfChild-1)
+		child[goldenChild].Golden = true
+	}
+
 	if mother.Age >= 500 {
 		var dieRoll = randNumber(0, 100)
 		if (mother.Age < 525 && dieRoll <= 5) ||