add func

packages/core/util.mjs

@@ -434,6 +434,25 @@ function getUnixTimeSeconds() {
   return Date.now() * 0.001;
 }
 
+let keyState;
+
+export function getCurrentKeyboardState() {
+  if (keyState == null) {
+    keyState = {};
+    // Listen for the keydown event to mark the key as pressed
+    window.addEventListener('keydown', (event) => {
+      keyState[event.key] = true; // Mark the key as pressed
+    });
+
+    // Listen for the keyup event to mark the key as released
+    window.addEventListener('keyup', (event) => {
+      keyState[event.key] = false; // Mark the key as released
+    });
+  }
+
+  return { ...keyState }; // Return a shallow copy of the key state object
+}
+
 // Floating point versions, see Fraction for rational versions
 // // greatest common divisor
 // export const gcd = function (x, y, ...z) {