cmd: join ship groups

pkg/game/cmd_group.go

@@ -0,0 +1,19 @@
+package game
+
+import "github.com/iliadenisov/galaxy/pkg/model/game"
+
+func JoinEqualGroups(configure func(*Param), race string) (err error) {
+	control(configure, func(c *ctrl) {
+		c.execute(func(r Repo, g game.Game) {
+			err = joinEqualGroups(r, g, race)
+		})
+	})
+	return
+}
+
+func joinEqualGroups(r Repo, g game.Game, race string) error {
+	if err := g.JoinEqualGroups(race); err != nil {
+		return err
+	}
+	return r.SaveState(g)
+}