Added basic game save.

game/actor.go

@@ -17,9 +17,9 @@ type Actor struct {
 	HP            int
 	MaxHP         int
 	Gold          int
-	Artifacts     StringSet
-	Cards         StringSet
-	StatusEffects StringSet
+	Artifacts     *StringSet
+	Cards         *StringSet
+	StatusEffects *StringSet
 }
 
 func (a Actor) IsNone() bool {

game/session.go

@@ -15,6 +15,7 @@ import (
 	"io"
 	"log"
 	"math/rand"
+	"os"
 	"sort"
 	"time"
 )
@@ -241,6 +242,18 @@ func (s *Session) GetGameState() GameState {
 func (s *Session) SetGameState(state GameState) {
 	s.state = state
 
+	// Save after each fight
+	if s.state == GameStateFight {
+		save, err := s.GobEncode()
+		if err != nil {
+			s.log.Println("Error saving file:", save)
+		} else {
+			if err := os.WriteFile("./session.save", save, 0666); err != nil {
+				s.log.Println("Error saving file:", save)
+			}
+		}
+	}
+
 	switch s.state {
 	case GameStateFight:
 		s.SetupFight()
@@ -254,6 +267,7 @@ func (s *Session) SetGameState(state GameState) {
 func (s *Session) SetEvent(id string) {
 	s.currentEvent = ""
 	if _, ok := s.resources.Events[id]; ok {
+		s.currentEvent = id
 		s.eventHistory = append(s.eventHistory, id)
 		_, _ = s.resources.Events[id].OnEnter.Call(CreateContext("type_id", id))
 	}

game/string_set.go

@@ -7,53 +7,63 @@ import (
 	"github.com/samber/lo"
 )
 
-type StringSet map[string]struct{}
-
-func NewStringSet() StringSet {
-	return StringSet{}
+// StringSet represents a string set that can be serialized by Gob.
+//
+// Note: As the GobDecode needs to overwrite its receiver we need to have the map
+// behind a struct pointer.
+type StringSet struct {
+	values map[string]struct{}
 }
 
-func (s StringSet) Has(val string) bool {
-	_, ok := s[val]
+func NewStringSet() *StringSet {
+	return &StringSet{
+		values: map[string]struct{}{},
+	}
+}
+
+func (s *StringSet) Has(val string) bool {
+	_, ok := s.values[val]
 	return ok
 }
 
-func (s StringSet) Add(val string) {
-	s[val] = struct{}{}
+func (s *StringSet) Add(val string) {
+	s.values[val] = struct{}{}
 }
 
-func (s StringSet) Remove(val string) {
-	delete(s, val)
+func (s *StringSet) Remove(val string) {
+	delete(s.values, val)
 }
 
-func (s StringSet) Append(vals ...string) {
+func (s *StringSet) Append(vals ...string) {
 	for _, val := range vals {
 		s.Add(val)
 	}
 }
 
-func (s StringSet) Clear() {
-	for key := range s {
-		delete(s, key)
+func (s *StringSet) Clear() {
+	for key := range s.values {
+		delete(s.values, key)
 	}
 }
 
-func (s StringSet) ToSlice() []string {
-	return lo.Keys(s)
+func (s *StringSet) ToSlice() []string {
+	return lo.Keys(s.values)
 }
 
-func (s StringSet) Clone() StringSet {
-	return util.CopyMap(s)
+func (s *StringSet) Clone() *StringSet {
+	return &StringSet{values: util.CopyMap(s.values)}
 }
 
-func (s StringSet) GobEncode() ([]byte, error) {
+func (s *StringSet) GobEncode() ([]byte, error) {
 	buf := &bytes.Buffer{}
 	enc := gob.NewEncoder(buf)
 	err := enc.Encode(s.ToSlice())
 	return buf.Bytes(), err
 }
 
-func (s StringSet) GobDecode(data []byte) error {
+func (s *StringSet) GobDecode(data []byte) error {
+	*s = StringSet{values: map[string]struct{}{}}
+
 	buf := bytes.NewBuffer(data)
 	dec := gob.NewDecoder(buf)
 

ui/mainmenu/mainmenu.go

@@ -53,6 +53,26 @@ func (m Model) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
 
 	switch m.choices.selected {
 	case ChoiceContinue:
+		if saved, err := os.ReadFile("./session.save"); err == nil {
+			f, err := os.OpenFile("./logs/S "+strings.ReplaceAll(time.Now().Format(time.DateTime), ":", "-")+".txt", os.O_WRONLY|os.O_CREATE|os.O_APPEND, 0644)
+			if err != nil {
+				panic(err)
+			}
+
+			session := game.NewSession(
+				game.WithLogging(log.New(f, "SESSION ", log.Ldate|log.Ltime|log.Lshortfile)),
+				lo.Ternary(os.Getenv("PG_DEBUG") == "1", game.WithDebugEnabled("127.0.0.1:8272"), nil),
+			)
+
+			err = session.GobDecode(saved)
+			if err != nil {
+				log.Println("Error loading save:", err)
+			} else {
+				m.choices = m.choices.Clear()
+				return gameview.New(m, m.zones, session), cmd
+			}
+		}
+
 	case ChoiceNewGame:
 		_ = os.Mkdir("./logs", 0777)
 		f, err := os.OpenFile("./logs/S "+strings.ReplaceAll(time.Now().Format(time.DateTime), ":", "-")+".txt", os.O_WRONLY|os.O_CREATE|os.O_APPEND, 0644)