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godot/core/os/time.cpp

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Add Time singleton
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/*************************************************************************/
/* time.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/*************************************************************************/
Update copyright statements to 2022 Happy new year to the wonderful Godot community!
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/* Copyright (c) 2007-2022 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2022 Godot Engine contributors (cf. AUTHORS.md). */
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/* */
/* 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; \
}
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#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."); \
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ERR_FAIL_COND_V_MSG(month < 0, ret, "Invalid month value of: " + itos(month) + "."); \
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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) + "."); \
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ERR_FAIL_COND_V_MSG(hour < 0, ret, "Invalid hour value of: " + itos(hour) + "."); \
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ERR_FAIL_COND_V_MSG(minute > 59, ret, "Invalid minute value of: " + itos(minute) + "."); \
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ERR_FAIL_COND_V_MSG(minute < 0, ret, "Invalid minute value of: " + itos(minute) + "."); \
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ERR_FAIL_COND_V_MSG(second > 59, ret, "Invalid second value of: " + itos(second) + " (leap seconds are not supported)."); \
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ERR_FAIL_COND_V_MSG(second < 0, ret, "Invalid second value of: " + itos(second) + "."); \
ERR_FAIL_COND_V_MSG(day == 0, ret, "Invalid day value of: " + itos(day) + ", days are 1-indexed and cannot be 0."); \
ERR_FAIL_COND_V_MSG(day < 0, ret, "Invalid day value of: " + itos(day) + "."); \
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/* Do this check after month is tested as valid. */ \
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) + ".");
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#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); \
} \
}
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#define PARSE_ISO8601_STRING(ret) \
int64_t year = UNIX_EPOCH_YEAR_AD; \
Month month = MONTH_JANUARY; \
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int day = 1; \
int hour = 0; \
int minute = 0; \
int second = 0; \
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{ \
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]; \
} \
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}
#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; \
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Month month = Month((p_datetime.has(MONTH_KEY)) ? int(p_datetime[MONTH_KEY]) : 1); \
int day = p_datetime.has(DAY_KEY) ? int(p_datetime[DAY_KEY]) : 1; \
int hour = p_datetime.has(HOUR_KEY) ? int(p_datetime[HOUR_KEY]) : 0; \
int minute = p_datetime.has(MINUTE_KEY) ? int(p_datetime[MINUTE_KEY]) : 0; \
int second = p_datetime.has(SECOND_KEY) ? int(p_datetime[SECOND_KEY]) : 0;
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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);
}
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Dictionary Time::get_datetime_dict_from_datetime_string(String p_datetime, bool p_weekday) const {
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PARSE_ISO8601_STRING(Dictionary())
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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;
}
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String Time::get_datetime_string_from_datetime_dict(const Dictionary p_datetime, bool p_use_space) const {
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ERR_FAIL_COND_V_MSG(p_datetime.is_empty(), "", "Invalid datetime Dictionary: Dictionary is empty.");
EXTRACT_FROM_DICTIONARY
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VALIDATE_YMDHMS("")
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// 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;
}
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int64_t Time::get_unix_time_from_datetime_dict(const Dictionary p_datetime) const {
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ERR_FAIL_COND_V_MSG(p_datetime.is_empty(), 0, "Invalid datetime Dictionary: Dictionary is empty");
EXTRACT_FROM_DICTIONARY
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VALIDATE_YMDHMS(0)
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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 {
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PARSE_ISO8601_STRING(-1)
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VALIDATE_YMDHMS(0)
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YMD_TO_DAY_NUMBER
return day_number * SECONDS_PER_DAY + hour * 3600 + minute * 60 + second;
}
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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);
}
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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);
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ClassDB::bind_method(D_METHOD("get_datetime_dict_from_datetime_string", "datetime", "weekday"), &Time::get_datetime_dict_from_datetime_string);
ClassDB::bind_method(D_METHOD("get_datetime_string_from_datetime_dict", "datetime", "use_space"), &Time::get_datetime_string_from_datetime_dict);
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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);
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ClassDB::bind_method(D_METHOD("get_offset_string_from_offset_minutes", "offset_minutes"), &Time::get_offset_string_from_offset_minutes);
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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;
}