1 files changed, 48 insertions, 0 deletions
diff --git a/go/webtools/main.go b/go/webtools/main.go
new file mode 100644
index 00000000..c468f4dd
--- /dev/null
+++ b/go/webtools/main.go
@@ -0,0 +1,48 @@
+package main
+
+import (
+	"math/rand"
+	"syscall/js"
+	"time"
+
+	"muhq.space/muhqs-game/go/game"
+)
+
+var r *rand.Rand
+
+func jSRandomTileFromMap() js.Func {
+	jsonFunc := js.FuncOf(func(this js.Value, args []js.Value) any {
+		if len(args) != 2 {
+			return "Invalid number of arguments passed"
+		}
+
+		mapData := args[0].String()
+
+		symbols := make([]string, 0, args[1].Length())
+		for i := 0; i < args[1].Length(); i++ {
+			symbol := args[1].Index(i).String()
+			symbols = append(symbols, symbol)
+		}
+
+		position, err := randomTileFromMap(mapData, symbols)
+		if err != nil {
+			return err.Error()
+		}
+		return map[string]interface{}{"y": position.Y + 1, "x": position.X + 1}
+	})
+	return jsonFunc
+}
+
+func randomTileFromMap(mapData string, symbols []string) (game.Position, error) {
+	m, err := game.ParseMap([]byte(mapData))
+	if err != nil {
+		return game.INVALID_POSITION(), err
+	}
+	return m.RandomTileFromSymbols(r, symbols)
+}
+
+func main() {
+	r = rand.New(rand.NewSource(time.Now().UnixNano()))
+	js.Global().Set("randomTileFromSymbol", jSRandomTileFromMap())
+	<-make(chan bool)
+}