Add Component.useSignalValues

packages/react-godot-renderer/src/Component.ts

@@ -80,4 +80,33 @@ export const useSignal = <T extends Godot.Node<Godot.NodePathMap>, A extends use
     const callable = Godot.Callable.create(ref.current, f)
     signal.connect(callable)
     return () => { signal.disconnect(callable) }
-}, [ref.current])
+}, [ref.current, name])
+
+export declare namespace useSignalValues {
+    export type SignalNames<T extends Godot.Node<Godot.NodePathMap>> = useSignal.SignalNames<T>
+
+    export type SignalValues<T extends Godot.Node<Godot.NodePathMap>, N extends useSignal.SignalNames<T>> = (
+        T[N] extends Godot.Signal<infer F>
+            ? Parameters<F>
+            : never
+    )
+}
+
+export const useSignalValues = <T extends Godot.Node<Godot.NodePathMap>, A extends useSignal.SignalNames<T>>(
+    ref: React.RefObject<T | null>,
+    name: A,
+    initialValue:
+        | useSignalValues.SignalValues<NoInfer<T>, NoInfer<A>>
+        | (() => useSignalValues.SignalValues<NoInfer<T>, NoInfer<A>>),
+): useSignalValues.SignalValues<T, A> => {
+    const [values, setValues] = React.useState(initialValue)
+    React.useEffect(() => {
+        if (!ref.current) return
+        const signal = ref.current[name] as Godot.Signal
+        const callable = Godot.Callable.create(setValues)
+        signal.connect(callable)
+        return () => { signal.disconnect(callable) }
+    }, [ref.current, name])
+
+    return values
+}