Added helper to get delta time to the node tree.

core/nodes/node_tree.cpp

@@ -39,6 +39,10 @@ void NodeTree::_send_update() {
 	}
 }
 
+float NodeTree::get_update_delta_time() {
+	return 0;
+}
+
 NodeTree::NodeTree() :
 		Object() {
 

core/nodes/node_tree.h

@@ -17,6 +17,8 @@ public:
 
 	void request_write_lock();
 
+	virtual float get_update_delta_time();
+
 	NodeTree();
 	~NodeTree();
 

web/http/web_server.cpp

@@ -25,6 +25,9 @@ void WebServer::handle_request(Request *request) {
 	_rw_lock.read_unlock();
 }
 
+float WebServer::get_update_delta_time() {
+	return _update_interval;
+}
 
 WebServer::WebServer() : NodeTree() {
 	_web_root = nullptr;

web/http/web_server.h

@@ -16,6 +16,8 @@ public:
 
 	void handle_request(Request *request);
 
+	float get_update_delta_time();
+
 	WebServer();
 	virtual ~WebServer();