feat: add json format

storage/model/cage.go

@@ -1,5 +1,5 @@
 package model
 
 type Cage struct {
-	Hamsters []*Hamster
+	Hamsters []*Hamster `json:"hamsters"`
 }

storage/model/game.go

@@ -1,8 +1,8 @@
 package model
 
 type Game struct {
-	ID            string
-	server        Server
-	Cages         []*Cage
-	SelledHamster []*Hamster
+	ID          string     `json:"game_id"`
+	Server      Server     `json:"server"`
+	Cages       []*Cage    `json:"cages"`
+	SoldHamster []*Hamster `json:"sold_hamsters"`
 }

storage/model/hamster.go

@@ -30,24 +30,24 @@ const (
 var GlobalHamsterNumber = 1
 
 type Hamster struct {
-	ID                string
-	Name              string
-	Number            int
-	Sexe              string
-	Age               int // in days
-	Father            *Hamster
-	Mother            *Hamster
-	HungerLevel       int8
-	ThirstLevel       int8
-	Weight            float64
-	Height            float64
-	Alive             bool
-	Selled            bool
-	Gestation         bool
-	GestationPeriod   int8
-	GestationCooldown int8
-	GestationFather   *Hamster
-	Child             []*Hamster
+	ID                string `json:"id"`
+	Name              string `json:"name"`
+	Number            int        `json:"number"`
+	Sexe              string     `json:"sexe"`
+	Age               int        `json:"age"`
+	Father            *Hamster   `json:"father"`
+	Mother            *Hamster   `json:"mother"`
+	HungerLevel       int8       `json:"hunger_level"`
+	ThirstLevel       int8       `json:"thirst_level"`
+	Weight            float64    `json:"weight"`
+	Height            float64    `json:"height"`
+	Alive             bool       `json:"alive"`
+	Sold              bool       `json:"sold"`
+	Gestation         bool       `json:"gestation"`
+	GestationPeriod   int8       `json:"gestation_period"`
+	GestationCooldown int8       `json:"gestation_cooldown"`
+	GestationFather   *Hamster   `json:"gestation_father"`
+	Child             []*Hamster `json:"childs"`
 }
 
 func (h *Hamster) Die() {
@@ -100,7 +100,7 @@ func (h *Hamster) Fuck(another *Hamster) (bool, error) {
 }
 
 func Born(father *Hamster, mother *Hamster) ([]*Hamster, error) {
-	if !mother.Alive || mother.Selled {
+	if !mother.Alive || mother.Sold {
 		return nil, errors.New("the mother is not here")
 	}
 	if mother.GestationPeriod != TotalGestationPeriod {
@@ -125,7 +125,7 @@ func Born(father *Hamster, mother *Hamster) ([]*Hamster, error) {
 			HungerLevel:       Full,
 			ThirstLevel:       Full,
 			Alive:             true,
-			Selled:            false,
+			Sold:              false,
 			Gestation:         false,
 			GestationPeriod:   0,
 			GestationCooldown: 30,