/*************************************************************************/ /* time.cpp */ /*************************************************************************/ /* This file is part of: */ /* GODOT ENGINE */ /* https://godotengine.org */ /*************************************************************************/ /* Copyright (c) 2007-2022 Juan Linietsky, Ariel Manzur. */ /* Copyright (c) 2014-2022 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 "time.h" #include "core/os/os.h" #define UNIX_EPOCH_YEAR_AD 1970 // 1970 #define SECONDS_PER_DAY (24 * 60 * 60) // 86400 #define IS_LEAP_YEAR(year) (!((year) % 4) && (((year) % 100) || !((year) % 400))) #define YEAR_SIZE(year) (IS_LEAP_YEAR(year) ? 366 : 365) #define YEAR_KEY "year" #define MONTH_KEY "month" #define DAY_KEY "day" #define WEEKDAY_KEY "weekday" #define HOUR_KEY "hour" #define MINUTE_KEY "minute" #define SECOND_KEY "second" #define DST_KEY "dst" // Table of number of days in each month (for regular year and leap year). static const uint8_t MONTH_DAYS_TABLE[2][12] = { { 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 }, { 31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 } }; VARIANT_ENUM_CAST(Time::Month); VARIANT_ENUM_CAST(Time::Weekday); #define UNIX_TIME_TO_HMS \ uint8_t hour, minute, second; \ { \ /* The time of the day (in seconds since start of day). */ \ uint32_t day_clock = Math::posmod(p_unix_time_val, SECONDS_PER_DAY); \ /* On x86 these 4 lines can be optimized to only 2 divisions. */ \ second = day_clock % 60; \ day_clock /= 60; \ minute = day_clock % 60; \ hour = day_clock / 60; \ } #define UNIX_TIME_TO_YMD \ int64_t year; \ Month month; \ uint8_t day; \ /* The day number since Unix epoch (0-index). Days before 1970 are negative. */ \ int64_t day_number = Math::floor(p_unix_time_val / (double)SECONDS_PER_DAY); \ { \ int64_t day_number_copy = day_number; \ year = UNIX_EPOCH_YEAR_AD; \ uint8_t month_zero_index = 0; \ while (day_number_copy >= YEAR_SIZE(year)) { \ day_number_copy -= YEAR_SIZE(year); \ year++; \ } \ while (day_number_copy < 0) { \ year--; \ day_number_copy += YEAR_SIZE(year); \ } \ /* After the above, day_number now represents the day of the year (0-index). */ \ while (day_number_copy >= MONTH_DAYS_TABLE[IS_LEAP_YEAR(year)][month_zero_index]) { \ day_number_copy -= MONTH_DAYS_TABLE[IS_LEAP_YEAR(year)][month_zero_index]; \ month_zero_index++; \ } \ /* After the above, day_number now represents the day of the month (0-index). */ \ month = (Month)(month_zero_index + 1); \ day = day_number_copy + 1; \ } #define VALIDATE_YMDHMS(ret) \ ERR_FAIL_COND_V_MSG(month == 0, ret, "Invalid month value of: " + itos(month) + ", months are 1-indexed and cannot be 0. See the Time.Month enum for valid values."); \ ERR_FAIL_COND_V_MSG(month > 12, ret, "Invalid month value of: " + itos(month) + ". See the Time.Month enum for valid values."); \ ERR_FAIL_COND_V_MSG(hour > 23, ret, "Invalid hour value of: " + itos(hour) + "."); \ ERR_FAIL_COND_V_MSG(minute > 59, ret, "Invalid minute value of: " + itos(minute) + "."); \ ERR_FAIL_COND_V_MSG(second > 59, ret, "Invalid second value of: " + itos(second) + " (leap seconds are not supported)."); \ /* Do this check after month is tested as valid. */ \ ERR_FAIL_COND_V_MSG(day == 0, ret, "Invalid day value of: " + itos(month) + ", days are 1-indexed and cannot be 0."); \ uint8_t days_in_this_month = MONTH_DAYS_TABLE[IS_LEAP_YEAR(year)][month - 1]; \ ERR_FAIL_COND_V_MSG(day > days_in_this_month, ret, "Invalid day value of: " + itos(day) + " which is larger than the maximum for this month, " + itos(days_in_this_month) + "."); #define YMD_TO_DAY_NUMBER \ /* The day number since Unix epoch (0-index). Days before 1970 are negative. */ \ int64_t day_number = day - 1; \ /* Add the days in the months to day_number. */ \ for (int i = 0; i < month - 1; i++) { \ day_number += MONTH_DAYS_TABLE[IS_LEAP_YEAR(year)][i]; \ } \ /* Add the days in the years to day_number. */ \ if (year >= UNIX_EPOCH_YEAR_AD) { \ for (int64_t iyear = UNIX_EPOCH_YEAR_AD; iyear < year; iyear++) { \ day_number += YEAR_SIZE(iyear); \ } \ } else { \ for (int64_t iyear = UNIX_EPOCH_YEAR_AD - 1; iyear >= year; iyear--) { \ day_number -= YEAR_SIZE(iyear); \ } \ } #define PARSE_ISO8601_STRING(ret) \ int64_t year = UNIX_EPOCH_YEAR_AD; \ Month month = MONTH_JANUARY; \ uint8_t day = 1; \ uint8_t hour = 0; \ uint8_t minute = 0; \ uint8_t second = 0; \ { \ bool has_date = false, has_time = false; \ String date, time; \ if (p_datetime.find_char('T') > 0) { \ has_date = has_time = true; \ PackedStringArray array = p_datetime.split("T"); \ ERR_FAIL_COND_V_MSG(array.size() < 2, ret, "Invalid ISO 8601 date/time string."); \ date = array[0]; \ time = array[1]; \ } else if (p_datetime.find_char(' ') > 0) { \ has_date = has_time = true; \ PackedStringArray array = p_datetime.split(" "); \ ERR_FAIL_COND_V_MSG(array.size() < 2, ret, "Invalid ISO 8601 date/time string."); \ date = array[0]; \ time = array[1]; \ } else if (p_datetime.find_char('-', 1) > 0) { \ has_date = true; \ date = p_datetime; \ } else if (p_datetime.find_char(':') > 0) { \ has_time = true; \ time = p_datetime; \ } \ /* Set the variables from the contents of the string. */ \ if (has_date) { \ PackedInt32Array array = date.split_ints("-", false); \ ERR_FAIL_COND_V_MSG(array.size() < 3, ret, "Invalid ISO 8601 date string."); \ year = array[0]; \ month = (Month)array[1]; \ day = array[2]; \ /* Handle negative years. */ \ if (p_datetime.find_char('-') == 0) { \ year *= -1; \ } \ } \ if (has_time) { \ PackedInt32Array array = time.split_ints(":", false); \ ERR_FAIL_COND_V_MSG(array.size() < 3, ret, "Invalid ISO 8601 time string."); \ hour = array[0]; \ minute = array[1]; \ second = array[2]; \ } \ } #define EXTRACT_FROM_DICTIONARY \ /* Get all time values from the dictionary. If it doesn't exist, set the */ \ /* values to the default values for Unix epoch (1970-01-01 00:00:00). */ \ int64_t year = p_datetime.has(YEAR_KEY) ? int64_t(p_datetime[YEAR_KEY]) : UNIX_EPOCH_YEAR_AD; \ Month month = Month((p_datetime.has(MONTH_KEY)) ? uint8_t(p_datetime[MONTH_KEY]) : 1); \ uint8_t day = p_datetime.has(DAY_KEY) ? uint8_t(p_datetime[DAY_KEY]) : 1; \ uint8_t hour = p_datetime.has(HOUR_KEY) ? uint8_t(p_datetime[HOUR_KEY]) : 0; \ uint8_t minute = p_datetime.has(MINUTE_KEY) ? uint8_t(p_datetime[MINUTE_KEY]) : 0; \ uint8_t second = p_datetime.has(SECOND_KEY) ? uint8_t(p_datetime[SECOND_KEY]) : 0; Time *Time::singleton = nullptr; Time *Time::get_singleton() { if (!singleton) { memnew(Time); } return singleton; } Dictionary Time::get_datetime_dict_from_unix_time(int64_t p_unix_time_val) const { UNIX_TIME_TO_HMS UNIX_TIME_TO_YMD Dictionary datetime; datetime[YEAR_KEY] = year; datetime[MONTH_KEY] = (uint8_t)month; datetime[DAY_KEY] = day; // Unix epoch was a Thursday (day 0 aka 1970-01-01). datetime[WEEKDAY_KEY] = Math::posmod(day_number + WEEKDAY_THURSDAY, 7); datetime[HOUR_KEY] = hour; datetime[MINUTE_KEY] = minute; datetime[SECOND_KEY] = second; return datetime; } Dictionary Time::get_date_dict_from_unix_time(int64_t p_unix_time_val) const { UNIX_TIME_TO_YMD Dictionary datetime; datetime[YEAR_KEY] = year; datetime[MONTH_KEY] = (uint8_t)month; datetime[DAY_KEY] = day; // Unix epoch was a Thursday (day 0 aka 1970-01-01). datetime[WEEKDAY_KEY] = Math::posmod(day_number + WEEKDAY_THURSDAY, 7); return datetime; } Dictionary Time::get_time_dict_from_unix_time(int64_t p_unix_time_val) const { UNIX_TIME_TO_HMS Dictionary datetime; datetime[HOUR_KEY] = hour; datetime[MINUTE_KEY] = minute; datetime[SECOND_KEY] = second; return datetime; } String Time::get_datetime_string_from_unix_time(int64_t p_unix_time_val, bool p_use_space) const { UNIX_TIME_TO_HMS UNIX_TIME_TO_YMD // vformat only supports up to 6 arguments, so we need to split this up into 2 parts. String timestamp = vformat("%04d-%02d-%02d", year, (uint8_t)month, day); if (p_use_space) { timestamp = vformat("%s %02d:%02d:%02d", timestamp, hour, minute, second); } else { timestamp = vformat("%sT%02d:%02d:%02d", timestamp, hour, minute, second); } return timestamp; } String Time::get_date_string_from_unix_time(int64_t p_unix_time_val) const { UNIX_TIME_TO_YMD // Android is picky about the types passed to make Variant, so we need a cast. return vformat("%04d-%02d-%02d", year, (uint8_t)month, day); } String Time::get_time_string_from_unix_time(int64_t p_unix_time_val) const { UNIX_TIME_TO_HMS return vformat("%02d:%02d:%02d", hour, minute, second); } Dictionary Time::get_datetime_dict_from_string(String p_datetime, bool p_weekday) const { PARSE_ISO8601_STRING(Dictionary()) Dictionary dict; dict[YEAR_KEY] = year; dict[MONTH_KEY] = (uint8_t)month; dict[DAY_KEY] = day; if (p_weekday) { YMD_TO_DAY_NUMBER // Unix epoch was a Thursday (day 0 aka 1970-01-01). dict[WEEKDAY_KEY] = Math::posmod(day_number + WEEKDAY_THURSDAY, 7); } dict[HOUR_KEY] = hour; dict[MINUTE_KEY] = minute; dict[SECOND_KEY] = second; return dict; } String Time::get_datetime_string_from_dict(const Dictionary p_datetime, bool p_use_space) const { ERR_FAIL_COND_V_MSG(p_datetime.is_empty(), "", "Invalid datetime Dictionary: Dictionary is empty."); EXTRACT_FROM_DICTIONARY VALIDATE_YMDHMS("") // vformat only supports up to 6 arguments, so we need to split this up into 2 parts. String timestamp = vformat("%04d-%02d-%02d", year, (uint8_t)month, day); if (p_use_space) { timestamp = vformat("%s %02d:%02d:%02d", timestamp, hour, minute, second); } else { timestamp = vformat("%sT%02d:%02d:%02d", timestamp, hour, minute, second); } return timestamp; } int64_t Time::get_unix_time_from_datetime_dict(const Dictionary p_datetime) const { ERR_FAIL_COND_V_MSG(p_datetime.is_empty(), 0, "Invalid datetime Dictionary: Dictionary is empty"); EXTRACT_FROM_DICTIONARY VALIDATE_YMDHMS(0) YMD_TO_DAY_NUMBER return day_number * SECONDS_PER_DAY + hour * 3600 + minute * 60 + second; } int64_t Time::get_unix_time_from_datetime_string(String p_datetime) const { PARSE_ISO8601_STRING(-1) VALIDATE_YMDHMS(0) YMD_TO_DAY_NUMBER return day_number * SECONDS_PER_DAY + hour * 3600 + minute * 60 + second; } String Time::get_offset_string_from_offset_minutes(int64_t p_offset_minutes) const { String sign; if (p_offset_minutes < 0) { sign = "-"; p_offset_minutes = -p_offset_minutes; } else { sign = "+"; } // These two lines can be optimized to one instruction on x86 and others. // Note that % is acceptable here only because we ensure it's positive. int64_t offset_hours = p_offset_minutes / 60; int64_t offset_minutes = p_offset_minutes % 60; return vformat("%s%02d:%02d", sign, offset_hours, offset_minutes); } Dictionary Time::get_datetime_dict_from_system(bool p_utc) const { OS::Date date = OS::get_singleton()->get_date(p_utc); OS::Time time = OS::get_singleton()->get_time(p_utc); Dictionary datetime; datetime[YEAR_KEY] = date.year; datetime[MONTH_KEY] = (uint8_t)date.month; datetime[DAY_KEY] = date.day; datetime[WEEKDAY_KEY] = (uint8_t)date.weekday; datetime[DST_KEY] = date.dst; datetime[HOUR_KEY] = time.hour; datetime[MINUTE_KEY] = time.minute; datetime[SECOND_KEY] = time.second; return datetime; } Dictionary Time::get_date_dict_from_system(bool p_utc) const { OS::Date date = OS::get_singleton()->get_date(p_utc); Dictionary date_dictionary; date_dictionary[YEAR_KEY] = date.year; date_dictionary[MONTH_KEY] = (uint8_t)date.month; date_dictionary[DAY_KEY] = date.day; date_dictionary[WEEKDAY_KEY] = (uint8_t)date.weekday; date_dictionary[DST_KEY] = date.dst; return date_dictionary; } Dictionary Time::get_time_dict_from_system(bool p_utc) const { OS::Time time = OS::get_singleton()->get_time(p_utc); Dictionary time_dictionary; time_dictionary[HOUR_KEY] = time.hour; time_dictionary[MINUTE_KEY] = time.minute; time_dictionary[SECOND_KEY] = time.second; return time_dictionary; } String Time::get_datetime_string_from_system(bool p_utc, bool p_use_space) const { OS::Date date = OS::get_singleton()->get_date(p_utc); OS::Time time = OS::get_singleton()->get_time(p_utc); // vformat only supports up to 6 arguments, so we need to split this up into 2 parts. String timestamp = vformat("%04d-%02d-%02d", date.year, (uint8_t)date.month, date.day); if (p_use_space) { timestamp = vformat("%s %02d:%02d:%02d", timestamp, time.hour, time.minute, time.second); } else { timestamp = vformat("%sT%02d:%02d:%02d", timestamp, time.hour, time.minute, time.second); } return timestamp; } String Time::get_date_string_from_system(bool p_utc) const { OS::Date date = OS::get_singleton()->get_date(p_utc); // Android is picky about the types passed to make Variant, so we need a cast. return vformat("%04d-%02d-%02d", date.year, (uint8_t)date.month, date.day); } String Time::get_time_string_from_system(bool p_utc) const { OS::Time time = OS::get_singleton()->get_time(p_utc); return vformat("%02d:%02d:%02d", time.hour, time.minute, time.second); } Dictionary Time::get_time_zone_from_system() const { OS::TimeZoneInfo info = OS::get_singleton()->get_time_zone_info(); Dictionary timezone; timezone["bias"] = info.bias; timezone["name"] = info.name; return timezone; } double Time::get_unix_time_from_system() const { return OS::get_singleton()->get_unix_time(); } uint64_t Time::get_ticks_msec() const { return OS::get_singleton()->get_ticks_msec(); } uint64_t Time::get_ticks_usec() const { return OS::get_singleton()->get_ticks_usec(); } void Time::_bind_methods() { ClassDB::bind_method(D_METHOD("get_datetime_dict_from_unix_time", "unix_time_val"), &Time::get_datetime_dict_from_unix_time); ClassDB::bind_method(D_METHOD("get_date_dict_from_unix_time", "unix_time_val"), &Time::get_date_dict_from_unix_time); ClassDB::bind_method(D_METHOD("get_time_dict_from_unix_time", "unix_time_val"), &Time::get_time_dict_from_unix_time); ClassDB::bind_method(D_METHOD("get_datetime_string_from_unix_time", "unix_time_val", "use_space"), &Time::get_datetime_string_from_unix_time, DEFVAL(false)); ClassDB::bind_method(D_METHOD("get_date_string_from_unix_time", "unix_time_val"), &Time::get_date_string_from_unix_time); ClassDB::bind_method(D_METHOD("get_time_string_from_unix_time", "unix_time_val"), &Time::get_time_string_from_unix_time); ClassDB::bind_method(D_METHOD("get_datetime_dict_from_string", "datetime", "weekday"), &Time::get_datetime_dict_from_string); ClassDB::bind_method(D_METHOD("get_datetime_string_from_dict", "datetime", "use_space"), &Time::get_datetime_string_from_dict); ClassDB::bind_method(D_METHOD("get_unix_time_from_datetime_dict", "datetime"), &Time::get_unix_time_from_datetime_dict); ClassDB::bind_method(D_METHOD("get_unix_time_from_datetime_string", "datetime"), &Time::get_unix_time_from_datetime_string); ClassDB::bind_method(D_METHOD("get_offset_string_from_offset_minutes", "offset_minutes"), &Time::get_offset_string_from_offset_minutes); ClassDB::bind_method(D_METHOD("get_datetime_dict_from_system", "utc"), &Time::get_datetime_dict_from_system, DEFVAL(false)); ClassDB::bind_method(D_METHOD("get_date_dict_from_system", "utc"), &Time::get_date_dict_from_system, DEFVAL(false)); ClassDB::bind_method(D_METHOD("get_time_dict_from_system", "utc"), &Time::get_time_dict_from_system, DEFVAL(false)); ClassDB::bind_method(D_METHOD("get_datetime_string_from_system", "utc", "use_space"), &Time::get_datetime_string_from_system, DEFVAL(false), DEFVAL(false)); ClassDB::bind_method(D_METHOD("get_date_string_from_system", "utc"), &Time::get_date_string_from_system, DEFVAL(false)); ClassDB::bind_method(D_METHOD("get_time_string_from_system", "utc"), &Time::get_time_string_from_system, DEFVAL(false)); ClassDB::bind_method(D_METHOD("get_time_zone_from_system"), &Time::get_time_zone_from_system); ClassDB::bind_method(D_METHOD("get_unix_time_from_system"), &Time::get_unix_time_from_system); ClassDB::bind_method(D_METHOD("get_ticks_msec"), &Time::get_ticks_msec); ClassDB::bind_method(D_METHOD("get_ticks_usec"), &Time::get_ticks_usec); BIND_ENUM_CONSTANT(MONTH_JANUARY); BIND_ENUM_CONSTANT(MONTH_FEBRUARY); BIND_ENUM_CONSTANT(MONTH_MARCH); BIND_ENUM_CONSTANT(MONTH_APRIL); BIND_ENUM_CONSTANT(MONTH_MAY); BIND_ENUM_CONSTANT(MONTH_JUNE); BIND_ENUM_CONSTANT(MONTH_JULY); BIND_ENUM_CONSTANT(MONTH_AUGUST); BIND_ENUM_CONSTANT(MONTH_SEPTEMBER); BIND_ENUM_CONSTANT(MONTH_OCTOBER); BIND_ENUM_CONSTANT(MONTH_NOVEMBER); BIND_ENUM_CONSTANT(MONTH_DECEMBER); BIND_ENUM_CONSTANT(WEEKDAY_SUNDAY); BIND_ENUM_CONSTANT(WEEKDAY_MONDAY); BIND_ENUM_CONSTANT(WEEKDAY_TUESDAY); BIND_ENUM_CONSTANT(WEEKDAY_WEDNESDAY); BIND_ENUM_CONSTANT(WEEKDAY_THURSDAY); BIND_ENUM_CONSTANT(WEEKDAY_FRIDAY); BIND_ENUM_CONSTANT(WEEKDAY_SATURDAY); } Time::Time() { ERR_FAIL_COND_MSG(singleton, "Singleton for Time already exists."); singleton = this; } Time::~Time() { singleton = nullptr; }