fix game

cmd/client/storage_wasm.go

@@ -6,6 +6,7 @@ package main
 import (
 	"crypto/rand"
 	"encoding/hex"
+	"fmt"
 	"log"
 	"syscall/js"
 )
@@ -73,3 +74,30 @@ func (g *Game) savePlayerName(name string) {
 		}
 	}
 }
+
+func (g *Game) loadHighscore() int {
+	const storageKey = "escape_from_teacher_highscore"
+	if jsGlobal := js.Global(); !jsGlobal.IsUndefined() {
+		localStorage := jsGlobal.Get("localStorage")
+		if !localStorage.IsUndefined() {
+			stored := localStorage.Call("getItem", storageKey)
+			if !stored.IsNull() && stored.String() != "" {
+				var score int
+				if _, err := fmt.Sscanf(stored.String(), "%d", &score); err == nil {
+					return score
+				}
+			}
+		}
+	}
+	return 0
+}
+
+func (g *Game) saveHighscore(score int) {
+	const storageKey = "escape_from_teacher_highscore"
+	if jsGlobal := js.Global(); !jsGlobal.IsUndefined() {
+		localStorage := jsGlobal.Get("localStorage")
+		if !localStorage.IsUndefined() {
+			localStorage.Call("setItem", storageKey, fmt.Sprintf("%d", score))
+		}
+	}
+}