1 files changed, 70 insertions, 0 deletions
diff --git a/modules/navigation/nav_agent.cpp b/modules/navigation/nav_agent.cpp
new file mode 100644
index 0000000000..293544c0a5
--- /dev/null
+++ b/modules/navigation/nav_agent.cpp
@@ -0,0 +1,70 @@
+/**************************************************************************/
+/*  nav_agent.cpp                                                         */
+/**************************************************************************/
+/*                         This file is part of:                          */
+/*                             GODOT ENGINE                               */
+/*                        https://godotengine.org                         */
+/**************************************************************************/
+/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
+/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur.                  */
+/*                                                                        */
+/* Permission is hereby granted, free of charge, to any person obtaining  */
+/* a copy of this software and associated documentation files (the        */
+/* "Software"), to deal in the Software without restriction, including    */
+/* without limitation the rights to use, copy, modify, merge, publish,    */
+/* distribute, sublicense, and/or sell copies of the Software, and to     */
+/* permit persons to whom the Software is furnished to do so, subject to  */
+/* the following conditions:                                              */
+/*                                                                        */
+/* The above copyright notice and this permission notice shall be         */
+/* included in all copies or substantial portions of the Software.        */
+/*                                                                        */
+/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,        */
+/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF     */
+/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
+/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY   */
+/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,   */
+/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE      */
+/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                 */
+/**************************************************************************/
+
+#include "nav_agent.h"
+
+#include "nav_map.h"
+
+void NavAgent::set_map(NavMap *p_map) {
+	map = p_map;
+}
+
+bool NavAgent::is_map_changed() {
+	if (map) {
+		bool is_changed = map->get_map_update_id() != map_update_id;
+		map_update_id = map->get_map_update_id();
+		return is_changed;
+	} else {
+		return false;
+	}
+}
+
+void NavAgent::set_callback(Callable p_callback) {
+	callback = p_callback;
+}
+
+bool NavAgent::has_callback() const {
+	return callback.is_valid();
+}
+
+void NavAgent::dispatch_callback() {
+	if (!callback.is_valid()) {
+		return;
+	}
+
+	Vector3 new_velocity = Vector3(agent.newVelocity_.x(), agent.newVelocity_.y(), agent.newVelocity_.z());
+
+	// Invoke the callback with the new velocity.
+	Variant args[] = { new_velocity };
+	const Variant *args_p[] = { &args[0] };
+	Variant return_value;
+	Callable::CallError call_error;
+	callback.callp(args_p, 1, return_value, call_error);
+}