1 files changed, 61 insertions, 0 deletions
diff --git a/go/game/action.go b/go/game/action.go
index 373c814f..1d34a843 100644
--- a/go/game/action.go
+++ b/go/game/action.go
@@ -1,8 +1,11 @@
 package game
 
 import (
+	"errors"
 	"fmt"
 	"log"
+	"regexp"
+	"strings"
 )
 
 type ActionSpeed int
@@ -713,3 +716,61 @@ func UseAttackAction(a Action) {
 		a.costFunc = genAttackActionCost(a.Source().(*Unit))
 	}
 }
+
+// Marshal an action to plain text.
+// The format of the action is `SOURCE ACTION CONTEXT`.
+// PassPriority: PLAYER pass
+// DraftPick: PLAYER pick CARD:PACK
+func MarshalAction(_a Action) []byte {
+	out := []byte{}
+	switch a := _a.(type) {
+	case *PassPriority:
+		out = fmt.Appendf(out, "%s\u00A0pass", a.player.Name)
+	case *DraftPick:
+		out = fmt.Appendf(out, "%s\u00A0pick\u00A0%s:%s", a.player.Name, a.pick.Path(), a.pack)
+	default:
+		log.Fatalf("MarshalAction(%s) not implemented\n", a)
+	}
+	return out
+}
+
+var (
+	InvalidActionFormat = errors.New("Invalid Action Format")
+)
+
+var ActionRegex = regexp.MustCompile(`^([^\xA0]*)\xA0([^\xA0]*)\xA0?(.*)?$`)
+
+func UnmarshalAction(s State, in []byte) (a Action, err error) {
+	m := ActionRegex.FindSubmatch(in)
+	if len(m) < 2 || len(m) > 4 {
+		log.Println(m)
+		return nil, InvalidActionFormat
+	}
+	_action := string(m[2])
+	if _action == "pick" {
+		p := s.PlayerByName(string(m[1]))
+		if p == nil {
+			err = errors.New("Unknown player")
+			return
+		}
+		_p := strings.Split(string(m[3]), ":")
+		pick, err := NewCardSafe(_p[0])
+		if err != nil {
+			return nil, err
+		}
+		pack := NewPileOfCards()
+		err = pack.FromString(_p[1])
+		if err != nil {
+			return nil, err
+		}
+		a = NewDraftPick(p, pack, pick)
+	} else if _action == "pass" {
+		p := s.PlayerByName(string(m[1]))
+		if p == nil {
+			err = errors.New("Unknown player")
+			return
+		}
+		a = NewPassPriority(p)
+	}
+	return
+}