text: /*************************************************************************/
  /*  engine.cpp                                                           */
  /*************************************************************************/
  /*                       This file is part of:                           */
  /*                           GODOT ENGINE                                */
  /*                      https://godotengine.org                          */
  /*************************************************************************/
  /* Copyright (c) 2007-2019 Juan Linietsky, Ariel Manzur.                 */
  /* Copyright (c) 2014-2019 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,   */
  /* 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 "engine.h"
  
  #include "core/authors.gen.h"
  #include "core/donors.gen.h"
  #include "core/license.gen.h"
  #include "core/version.h"
  #include "core/version_hash.gen.h"
  
  void Engine::set_iterations_per_second(int p_ips) {
  
  	ERR_FAIL_COND(p_ips <= 0);
  	ips = p_ips;
  }
  int Engine::get_iterations_per_second() const {
  
  	return ips;
  }
  
  void Engine::set_physics_jitter_fix(float p_threshold) {
  	if (p_threshold < 0)
  		p_threshold = 0;
  	physics_jitter_fix = p_threshold;
  }
  
  float Engine::get_physics_jitter_fix() const {
  	return physics_jitter_fix;
  }
  
  void Engine::set_target_fps(int p_fps) {
  	_target_fps = p_fps > 0 ? p_fps : 0;
  }
  
  float Engine::get_target_fps() const {
  	return _target_fps;
  }
  
  uint64_t Engine::get_frames_drawn() {
  
  	return frames_drawn;
  }
  
  void Engine::set_frame_delay(uint32_t p_msec) {
  
  	_frame_delay = p_msec;
  }
  
  uint32_t Engine::get_frame_delay() const {
  
  	return _frame_delay;
  }
  
  void Engine::set_time_scale(float p_scale) {
  
  	_time_scale = p_scale;
  }
  
  float Engine::get_time_scale() const {
  
  	return _time_scale;
  }
  
  Dictionary Engine::get_version_info() const {
  
  	Dictionary dict;
  	dict["major"] = VERSION_MAJOR;
  	dict["minor"] = VERSION_MINOR;
  #ifdef VERSION_PATCH
  	dict["patch"] = VERSION_PATCH;
  #else
  	dict["patch"] = 0;
  #endif
  	dict["hex"] = VERSION_HEX;
  	dict["status"] = VERSION_STATUS;
  	dict["build"] = VERSION_BUILD;
  	dict["year"] = VERSION_YEAR;
  
  	String hash = VERSION_HASH;
  	dict["hash"] = hash.length() == 0 ? String("unknown") : hash;
  
  	String stringver = String(dict["major"]) + "." + String(dict["minor"]);
  	if ((int)dict["patch"] != 0)
  		stringver += "." + String(dict["patch"]);
  	stringver += "-" + String(dict["status"]) + " (" + String(dict["build"]) + ")";
  	dict["string"] = stringver;
  
  	return dict;
  }
  
  static Array array_from_info(const char *const *info_list) {
  	Array arr;
  	for (int i = 0; info_list[i] != NULL; i++) {
  		arr.push_back(info_list[i]);
  	}
  	return arr;
  }
  
  static Array array_from_info_count(const char *const *info_list, int info_count) {
  	Array arr;
  	for (int i = 0; i < info_count; i++) {
  		arr.push_back(info_list[i]);
  	}
  	return arr;
  }
  
  Dictionary Engine::get_author_info() const {
  	Dictionary dict;
  
  	dict["lead_developers"] = array_from_info(AUTHORS_LEAD_DEVELOPERS);
  	dict["project_managers"] = array_from_info(AUTHORS_PROJECT_MANAGERS);
  	dict["founders"] = array_from_info(AUTHORS_FOUNDERS);
  	dict["developers"] = array_from_info(AUTHORS_DEVELOPERS);
  
  	return dict;
  }
  
  Array Engine::get_copyright_info() const {
  	Array components;
  	for (int component_index = 0; component_index < COPYRIGHT_INFO_COUNT; component_index++) {
  		const ComponentCopyright &cp_info = COPYRIGHT_INFO[component_index];
  		Dictionary component_dict;
  		component_dict["name"] = cp_info.name;
  		Array parts;
  		for (int i = 0; i < cp_info.part_count; i++) {
  			const ComponentCopyrightPart &cp_part = cp_info.parts[i];
  			Dictionary part_dict;
  			part_dict["files"] = array_from_info_count(cp_part.files, cp_part.file_count);
  			part_dict["copyright"] = array_from_info_count(cp_part.copyright_statements, cp_part.copyright_count);
  			part_dict["license"] = cp_part.license;
  			parts.push_back(part_dict);
  		}
  		component_dict["parts"] = parts;
  
  		components.push_back(component_dict);
  	}
  	return components;
  }
  
  Dictionary Engine::get_donor_info() const {
  	Dictionary donors;
  	donors["platinum_sponsors"] = array_from_info(DONORS_SPONSOR_PLAT);
  	donors["gold_sponsors"] = array_from_info(DONORS_SPONSOR_GOLD);
  	donors["mini_sponsors"] = array_from_info(DONORS_SPONSOR_MINI);
  	donors["gold_donors"] = array_from_info(DONORS_GOLD);
  	donors["silver_donors"] = array_from_info(DONORS_SILVER);
  	donors["bronze_donors"] = array_from_info(DONORS_BRONZE);
  	return donors;
  }
  
  Dictionary Engine::get_license_info() const {
  	Dictionary licenses;
  	for (int i = 0; i < LICENSE_COUNT; i++) {
  		licenses[LICENSE_NAMES[i]] = LICENSE_BODIES[i];
  	}
  	return licenses;
  }
  
  String Engine::get_license_text() const {
  	return String(GODOT_LICENSE_TEXT);
  }
  
  void Engine::add_singleton(const Singleton &p_singleton) {
  
  	singletons.push_back(p_singleton);
  	singleton_ptrs[p_singleton.name] = p_singleton.ptr;
  }
  
  Object *Engine::get_singleton_object(const String &p_name) const {
  
  	const Map<StringName, Object *>::Element *E = singleton_ptrs.find(p_name);
  	ERR_FAIL_COND_V_MSG(!E, NULL, "Failed to retrieve non-existent singleton '" + p_name + "'.");
  	return E->get();
  };
  
  bool Engine::has_singleton(const String &p_name) const {
  
  	return singleton_ptrs.has(p_name);
  };
  
  void Engine::get_singletons(List<Singleton> *p_singletons) {
  
  	for (List<Singleton>::Element *E = singletons.front(); E; E = E->next())
  		p_singletons->push_back(E->get());
  }
  
  Engine *Engine::singleton = NULL;
  
  Engine *Engine::get_singleton() {
  	return singleton;
  }
  
  Engine::Engine() {
  
  	singleton = this;
  	frames_drawn = 0;
  	ips = 60;
  	physics_jitter_fix = 0.5;
  	_physics_interpolation_fraction = 0.0f;
  	_frame_delay = 0;
  	_fps = 1;
  	_target_fps = 0;
  	_time_scale = 1.0;
  	_pixel_snap = false;
  	_physics_frames = 0;
  	_idle_frames = 0;
  	_in_physics = false;
  	_frame_ticks = 0;
  	_frame_step = 0;
  	editor_hint = false;
  }
  