feat: polish game HUD scoring and results

tools/unity-mcp-server/index.mjs

@@ -4,7 +4,8 @@ import { McpServer } from "@modelcontextprotocol/sdk/server/mcp.js";
 import { StdioServerTransport } from "@modelcontextprotocol/sdk/server/stdio.js";
 import { z } from "zod";
 
-const UNITY_BRIDGE_URL = (process.env.UNITY_BRIDGE_URL || "http://127.0.0.1:19744").replace(/\/$/, "");
+const EXPLICIT_UNITY_BRIDGE_URL = process.env.UNITY_BRIDGE_URL;
+let unityBridgeUrl = (EXPLICIT_UNITY_BRIDGE_URL || "http://127.0.0.1:19744").replace(/\/$/, "");
 
 const server = new McpServer({
   name: "vrbeats-unity",
@@ -24,13 +25,7 @@ function textResult(value) {
 }
 
 async function callUnity(path, options = {}) {
-  const response = await fetch(`${UNITY_BRIDGE_URL}${path}`, {
-    method: options.method || "GET",
-    headers: {
-      "Content-Type": "application/json",
-    },
-    body: options.body === undefined ? undefined : JSON.stringify(options.body),
-  });
+  const response = await fetchUnity(path, options);
 
   const rawText = await response.text();
   let parsed;
@@ -49,6 +44,40 @@ async function callUnity(path, options = {}) {
   return parsed;
 }
 
+async function fetchUnity(path, options = {}) {
+  const urls = [unityBridgeUrl];
+
+  if (!EXPLICIT_UNITY_BRIDGE_URL) {
+    for (let port = 19744; port <= 19748; port += 1) {
+      const url = `http://127.0.0.1:${port}`;
+      if (!urls.includes(url)) {
+        urls.push(url);
+      }
+    }
+  }
+
+  let lastError;
+
+  for (const url of urls) {
+    try {
+      const response = await fetch(`${url}${path}`, {
+        method: options.method || "GET",
+        headers: {
+          "Content-Type": "application/json",
+        },
+        body: options.body === undefined ? undefined : JSON.stringify(options.body),
+      });
+
+      unityBridgeUrl = url;
+      return response;
+    } catch (error) {
+      lastError = error;
+    }
+  }
+
+  throw lastError;
+}
+
 function queryString(params) {
   const query = new URLSearchParams();