refactor

js/patch_helpers.js

@@ -0,0 +1,16 @@
+"use strict";
+
+(function (global) {
+  const applied = new Set();
+  function patchPrototype(key, owner, patchFn) {
+    if (!key || !owner?.prototype || typeof patchFn !== "function") return false;
+    const fullKey = `${owner.name || "Owner"}:${key}`;
+    if (applied.has(fullKey) || owner.prototype[`__${key}Patched`]) return false;
+    patchFn(owner.prototype);
+    applied.add(fullKey);
+    owner.prototype[`__${key}Patched`] = true;
+    return true;
+  }
+  function patchWorld(key, patchFn) { return patchPrototype(key, global.World, patchFn); }
+  global.TarinaiPatcher = { patchPrototype, patchWorld, applied };
+})(typeof window !== "undefined" ? window : globalThis);