Updated docs according godot v4

This reverts commit ed1903119a.

README.md

@@ -18,7 +18,7 @@ Example compilation `Windows` command: `scons p=windows tools=yes -j4`
 ```gdscript
 hook.GetTable()
 hook.Add(event: String, uid: String, function: Callable)
-hook.Call(event: String, args: Array, defer: bool = false)
+hook.Call(event: String, args: Array = [], defer: bool = false)
 hook.Remove(event: String, uid: String)
 ```
 
@@ -28,7 +28,7 @@ hook.Remove(event: String, uid: String)
 ```gdscript
 # autorun.gd
 
-var hook: Hook = Hook.new()
+@onready var hook: Hook = Hook.new()
 
 func printHookOutput1(a: String, b: String):
     print(a, " ", b)

hook.cpp

@@ -12,7 +12,7 @@ void Hook::Add(String event, String uid, Callable function) {
 	table[event] = tmp;
 }
 
-void Hook::Call(String event, Array args, bool defer = false) {
+void Hook::Call(String event, Array args = Array(), bool defer = false) {
 	const Variant **argptrs = nullptr;
 	if (args.size() > 0) {
 		argptrs = (const Variant **)alloca(sizeof(Variant *) * args.size());
@@ -21,22 +21,21 @@ void Hook::Call(String event, Array args, bool defer = false) {
 		}
 	}
 	
-	for (int i = 0; i < table.size(); i++) {
-		Dictionary tmp = table.get(event, Dictionary());
-		if (!tmp.is_empty()) {
-			Array keys = tmp.keys();
-			for (int key_i = 0; key_i < keys.size(); key_i++) {
-				Callable function = tmp[keys[key_i]];
-				if (!defer) {
-					Callable::CallError call_error;
-					function.callp(argptrs, args.size(), Variant(), call_error);
-				} else {
-					function.call_deferredp(argptrs, args.size());
-				}
+	Dictionary tmp = table.get(event, Dictionary());
+	if (!tmp.is_empty()) {
+		Array keys = tmp.keys();
+		for (int key_i = 0; key_i < keys.size(); key_i++) {
+			Callable function = tmp[keys[key_i]];
+			if (!defer) {
+				Callable::CallError call_error;
+				Variant r_return_variant = Variant();
+				function.callp(argptrs, args.size(), r_return_variant, call_error);
+			} else {
+				function.call_deferredp(argptrs, args.size());
 			}
-		} else {
-			ERR_PRINT("Hook event '" + event + "' cannot be found or empty.");
 		}
+	} else {
+		ERR_PRINT("Hook event '" + event + "' cannot be found or empty.");
 	}
 }
 
@@ -56,7 +55,7 @@ void Hook::Remove(String event, String uid) {
 void Hook::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("GetTable"), &Hook::GetTable);
 	ClassDB::bind_method(D_METHOD("Add", "event", "uid", "function"), &Hook::Add);
-	ClassDB::bind_method(D_METHOD("Call", "event", "args", "defer"), &Hook::Call, DEFVAL(false));
+	ClassDB::bind_method(D_METHOD("Call", "event", "args", "defer"), &Hook::Call, DEFVAL(Array()), DEFVAL(false));
 	ClassDB::bind_method(D_METHOD("Remove", "event", "uid"), &Hook::Remove);
 };