text: /*************************************************************************/
  /*  navigation_server.cpp                                                */
  /*************************************************************************/
  /*                       This file is part of:                           */
  /*                           GODOT ENGINE                                */
  /*                      https://godotengine.org                          */
  /*************************************************************************/
  /* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur.                 */
  /* Copyright (c) 2014-2020 Godot Engine contributors (cf. AUTHORS.md).   */
  /*                                                                       */
  /* 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,   */
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  /* permit persons to whom the Software is furnished to do so, subject to */
  /* the following conditions:                                             */
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  /* The above copyright notice and this permission notice shall be        */
  /* included in all copies or substantial portions of the Software.       */
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  /* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
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  /*************************************************************************/
  
  /**
  	@author AndreaCatania
  */
  
  #include "navigation_server.h"
  
  NavigationServer *NavigationServer::singleton = NULL;
  
  void NavigationServer::_bind_methods() {
  
  	ClassDB::bind_method(D_METHOD("map_create"), &NavigationServer::map_create);
  	ClassDB::bind_method(D_METHOD("map_set_active", "map", "active"), &NavigationServer::map_set_active);
  	ClassDB::bind_method(D_METHOD("map_is_active", "nap"), &NavigationServer::map_is_active);
  	ClassDB::bind_method(D_METHOD("map_set_up", "map", "up"), &NavigationServer::map_set_up);
  	ClassDB::bind_method(D_METHOD("map_get_up", "map"), &NavigationServer::map_get_up);
  	ClassDB::bind_method(D_METHOD("map_set_cell_size", "map", "cell_size"), &NavigationServer::map_set_cell_size);
  	ClassDB::bind_method(D_METHOD("map_get_cell_size", "map"), &NavigationServer::map_get_cell_size);
  	ClassDB::bind_method(D_METHOD("map_set_edge_connection_margin", "map", "margin"), &NavigationServer::map_set_edge_connection_margin);
  	ClassDB::bind_method(D_METHOD("map_get_edge_connection_margin", "map"), &NavigationServer::map_get_edge_connection_margin);
  	ClassDB::bind_method(D_METHOD("map_get_path", "map", "origin", "destination", "optimize"), &NavigationServer::map_get_path);
  
  	ClassDB::bind_method(D_METHOD("region_create"), &NavigationServer::region_create);
  	ClassDB::bind_method(D_METHOD("region_set_map", "region", "map"), &NavigationServer::region_set_map);
  	ClassDB::bind_method(D_METHOD("region_set_transform", "region", "transform"), &NavigationServer::region_set_transform);
  	ClassDB::bind_method(D_METHOD("region_set_navmesh", "region", "nav_mesh"), &NavigationServer::region_set_navmesh);
  	ClassDB::bind_method(D_METHOD("region_bake_navmesh", "mesh", "node"), &NavigationServer::region_bake_navmesh);
  
  	ClassDB::bind_method(D_METHOD("agent_create"), &NavigationServer::agent_create);
  	ClassDB::bind_method(D_METHOD("agent_set_map", "agent", "map"), &NavigationServer::agent_set_map);
  	ClassDB::bind_method(D_METHOD("agent_set_neighbor_dist", "agent", "dist"), &NavigationServer::agent_set_neighbor_dist);
  	ClassDB::bind_method(D_METHOD("agent_set_max_neighbors", "agent", "count"), &NavigationServer::agent_set_max_neighbors);
  	ClassDB::bind_method(D_METHOD("agent_set_time_horizon", "agent", "time"), &NavigationServer::agent_set_time_horizon);
  	ClassDB::bind_method(D_METHOD("agent_set_radius", "agent", "radius"), &NavigationServer::agent_set_radius);
  	ClassDB::bind_method(D_METHOD("agent_set_max_speed", "agent", "max_speed"), &NavigationServer::agent_set_max_speed);
  	ClassDB::bind_method(D_METHOD("agent_set_velocity", "agent", "velocity"), &NavigationServer::agent_set_velocity);
  	ClassDB::bind_method(D_METHOD("agent_set_target_velocity", "agent", "target_velocity"), &NavigationServer::agent_set_target_velocity);
  	ClassDB::bind_method(D_METHOD("agent_set_position", "agent", "position"), &NavigationServer::agent_set_position);
  	ClassDB::bind_method(D_METHOD("agent_is_map_changed", "agent"), &NavigationServer::agent_is_map_changed);
  	ClassDB::bind_method(D_METHOD("agent_set_callback", "agent", "receiver", "method", "userdata"), &NavigationServer::agent_set_callback, DEFVAL(Variant()));
  
  	ClassDB::bind_method(D_METHOD("free", "object"), &NavigationServer::free);
  
  	ClassDB::bind_method(D_METHOD("set_active", "active"), &NavigationServer::set_active);
  	ClassDB::bind_method(D_METHOD("step", "delta_time"), &NavigationServer::step);
  }
  
  const NavigationServer *NavigationServer::get_singleton() {
  	return singleton;
  }
  
  NavigationServer *NavigationServer::get_singleton_mut() {
  	return singleton;
  }
  
  NavigationServer::NavigationServer() {
  	ERR_FAIL_COND(singleton != NULL);
  	singleton = this;
  }
  
  NavigationServer::~NavigationServer() {
  	singleton = NULL;
  }
  
  NavigationServerCallback NavigationServerManager::create_callback = NULL;
  
  void NavigationServerManager::set_default_server(NavigationServerCallback p_callback) {
  	create_callback = p_callback;
  }
  
  NavigationServer *NavigationServerManager::new_default_server() {
  	ERR_FAIL_COND_V(create_callback == NULL, NULL);
  	return create_callback();
  }
  