support multi-module (#4)

* add multimodule
* re-package modules

server/internal/model/game/production.go

@@ -0,0 +1,37 @@
+package game
+
+import (
+	"github.com/google/uuid"
+)
+
+type ProductionType string
+
+const (
+	ProductionNone     ProductionType = "-"
+	ProductionMaterial ProductionType = "MAT" // Сырьё
+	ProductionCapital  ProductionType = "CAP" // Промышленность
+
+	ResearchDrive   ProductionType = "DRIVE"
+	ResearchWeapons ProductionType = "WEAPONS"
+	ResearchShields ProductionType = "SHIELDS"
+	ResearchCargo   ProductionType = "CARGO"
+
+	ResearchScience ProductionType = "SCIENCE"
+	ProductionShip  ProductionType = "SHIP"
+)
+
+type Production struct {
+	Type      ProductionType `json:"type"`
+	SubjectID *uuid.UUID     `json:"subjectId,omitempty"`
+	Progress  *Float         `json:"progress,omitempty"`
+	ProdUsed  *Float         `json:"prodUsed,omitempty"`
+}
+
+func (p ProductionType) AsType(subject uuid.UUID) Production {
+	switch p {
+	case ResearchScience, ProductionShip:
+		return Production{Type: p, SubjectID: &subject}
+	default:
+		return Production{Type: p, SubjectID: nil}
+	}
+}