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October 26, 2023 14:19
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Subtract time from ETS2/ATS save
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| def subtract_time(threshold_mins: int, next: int, offset: int = 0) -> None: | |
| ''' | |
| Subtracts time in a Euro Truck Simulator 2 (and possibly American Truck Simulator) save file. | |
| I wrote this because TruckersMP, before 2021-08-10 (https://forum.truckersmp.com/?/topic/105649--/), | |
| save time was synced with server time, bloating it by years (about 25 in my case). | |
| Save must be first not on Steam Cloud and be decrypted, see: | |
| https://forum.truckersmp.com/index.php?/topic/44399-save-editing-tutorial-in-depth-video/ | |
| Function assumes it's run in the directory with game.sii and info.sii. The time is stored in multiple places, I used | |
| this function looking at delivery_log_entry blocks. Quick walkthrough for the relevant parts of the block: | |
| param[0] is when the entry was finished | |
| param[1] is where the delivery was started | |
| param[2] is where the delivery was finished | |
| param[15] is when an off-line delivery was started, same as param[0] otherwise | |
| param[18] is the type of the event. Old entries don't have it at all, but if it exists: | |
| - compn is a standard off-line delivery with your truck, it's the only one with the start time | |
| - on_compn is a World of Trucks delivery | |
| - freerm is the EXP points given by riding in free roam | |
| param[0] and param[15] are given in minutes since day 1 at midnight and one day is 1,440 minutes. If there's a hole | |
| of thousands or even millions of minutes between the param[0] in one entry and param[15] in the next one, it's | |
| likely TruckersMP's fault. | |
| Since some of the timestamps are in days, this function subtracts only days (or multiples of 1,440 minutes) | |
| from timestamps after given time. Some entries in my save were going back in time before launching this function, | |
| it still works fine. | |
| New save is written as save_new.sii and info_new.sii | |
| Tested on 1.48.5 on Windows. | |
| :param int threshold_mins: from what timestamp onwards to subtract time, rounded up to the next midnight, I used | |
| the last params[0] | |
| :param int next: first timestamp in save after threshold_mins, I used the next params[15] | |
| :param offset: by how many more days more to subtract the timestamps, use for fine tuning | |
| :type offset: int or None | |
| ''' | |
| interesting_mins = ('params[0]', 'params[15]', 'game_time', 'last_visit', 'expiration_time', 'time', 'expiration') | |
| interesting_days = ('timestamp_day', 'economy_day') | |
| threshold_days = threshold_mins // 1440 + 1 | |
| threshold_mins = threshold_days * 1440 | |
| how_many_days = next // 1440 - threshold_days + offset | |
| how_many_mins = how_many_days * 1440 | |
| o = open('game_new.sii', 'w') | |
| with open('game.sii', 'r') as i: | |
| for line in i: | |
| temp = line.split(':') | |
| if temp[0][1:] in interesting_mins + interesting_days: | |
| try: | |
| data = int(temp[1].split()[0]) | |
| except ValueError: # it can be nil | |
| o.write(line) | |
| continue | |
| if temp[0][1:] in interesting_mins: | |
| if data >= threshold_mins: | |
| data -= how_many_mins | |
| line = temp[0] + ': ' + str(data) + '\n' | |
| elif data >= threshold_days: | |
| data -= how_many_days | |
| line = temp[0] + ': ' + str(data) + '\n' | |
| o.write(line) | |
| o.close() | |
| o = open('info_new.sii', 'w') | |
| with open('info.sii', 'r') as i: | |
| for line in i: | |
| if line.startswith(' time: '): | |
| o.write(' time: ' + str(int(line.split(':')[1]) - how_many_mins) + '\n') | |
| else: | |
| o.write(line) | |
| o.close() |
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