sc4-city-date-sync

A DLL Plugin for SimCity 4 that synchronizes the city dates in a region.

The plugin stores the current in-game date when saving an established city, and then applies it to the next established city if that city's in-game date is less then the stored value. The city date is applied by automatically executing the SimDate cheat when loading the city. The city date synchronization only occurs between cities located in the same region.

Download

The plugin can be downloaded from the Releases tab: https://github.com/0xC0000054/sc4-city-date-sync/releases

Disclaimer:

I have not experienced any issues with using the SimDate command in this way, but it may have side effects that I missed.

System Requirements

Windows 10 or later

Installation

Close SimCity 4.
Copy SC4CityDateSync.dll and SC4CityDateSync.ini into the Plugins folder in the SimCity 4 installation directory.
Start SimCity 4.

Troubleshooting

The plugin should write a SC4CityDateSync.log file in the same folder as the plugin.
The log contains status information for the most recent run of the plugin.

License

This project is licensed under the terms of the MIT License.
See LICENSE.txt for more information.

3rd party code

gzcom-dll Located in the vendor folder, MIT License.
Windows Implementation Library MIT License

Source Code

Prerequisites

Visual Studio 2022

Building the plugin

Open the solution in the src folder
Update the post build events to copy the build output to you SimCity 4 application plugins folder.
Build the solution

Debugging the plugin

Visual Studio can be configured to launch SimCity 4 on the Debugging page of the project properties. I configured the debugger to launch the game in a window with the following command line:
-intro:off -CPUcount:1 -w -CustomResolution:enabled -r1920x1080x32

You may need to adjust the resolution for your screen.