godot/core/os/main_loop.cpp

/*************************************************************************/
/*  main_loop.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,   */
/* 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 "main_loop.h"

#include "core/script_language.h"

void MainLoop::_bind_methods() {
	ClassDB::bind_method(D_METHOD("init"), &MainLoop::init);
	ClassDB::bind_method(D_METHOD("iteration", "delta"), &MainLoop::iteration);
	ClassDB::bind_method(D_METHOD("idle", "delta"), &MainLoop::idle);
	ClassDB::bind_method(D_METHOD("finish"), &MainLoop::finish);

	BIND_VMETHOD(MethodInfo("_initialize"));
	BIND_VMETHOD(MethodInfo(Variant::BOOL, "_iteration", PropertyInfo(Variant::FLOAT, "delta")));
	BIND_VMETHOD(MethodInfo(Variant::BOOL, "_idle", PropertyInfo(Variant::FLOAT, "delta")));
	BIND_VMETHOD(MethodInfo("_finalize"));

	BIND_CONSTANT(NOTIFICATION_OS_MEMORY_WARNING);
	BIND_CONSTANT(NOTIFICATION_TRANSLATION_CHANGED);
	BIND_CONSTANT(NOTIFICATION_WM_ABOUT);
	BIND_CONSTANT(NOTIFICATION_CRASH);
	BIND_CONSTANT(NOTIFICATION_OS_IME_UPDATE);
	BIND_CONSTANT(NOTIFICATION_APPLICATION_RESUMED);
	BIND_CONSTANT(NOTIFICATION_APPLICATION_PAUSED);
	BIND_CONSTANT(NOTIFICATION_APPLICATION_FOCUS_IN);
	BIND_CONSTANT(NOTIFICATION_APPLICATION_FOCUS_OUT);

	ADD_SIGNAL(MethodInfo("on_request_permissions_result", PropertyInfo(Variant::STRING, "permission"), PropertyInfo(Variant::BOOL, "granted")));
};

void MainLoop::set_init_script(const Ref<Script> &p_init_script) {
	init_script = p_init_script;
}

void MainLoop::init() {
	if (init_script.is_valid()) {
		set_script(init_script);
	}

	if (get_script_instance()) {
		get_script_instance()->call("_initialize");
	}
}

bool MainLoop::iteration(float p_time) {
	if (get_script_instance()) {
		return get_script_instance()->call("_iteration", p_time);
	}

	return false;
}

bool MainLoop::idle(float p_time) {
	if (get_script_instance()) {
		return get_script_instance()->call("_idle", p_time);
	}

	return false;
}

void MainLoop::finish() {
	if (get_script_instance()) {
		get_script_instance()->call("_finalize");
		set_script(Variant()); //clear script
	}
}