nam-dll

A DLL Plugin for SimCity 4 that improves interoperability with the Network Addon Mod.

Features

• draggable diagonal Streets
• disabling autoconnect for the Street and RHW tools (Streets placed by the zoning tool still connect automatically)
• Street tunnels
• additional network tool shortcuts

Street Tunnels

Enables functionality of Street tunnels. For this purpose, the DLL includes a modified tunnel and slope mod for the Street network. If you already use a slope mod, make sure the new file loads after.

Additional Network Tool Shortcuts

Adds keyboard shortcuts for the Monorail, One-Way Road, Dirt Road and Ground Highway network tools. This is something that Maxis left partially implemented, this DLL adds the missing features.

This DLL comes with a modified copy of the city KEYCFG file, TGI 0xA2E3D533, 0x6A231EAA, 0x6A9362EF, adding the following network tool shortcuts:

; Network tool keyboard shortcuts
Control Y               = 0x8BE098F4 "Monorail"
Control E               = 0x6BE098FA "Dirt Road"
Shift E                 = 0x4BE098F7 "One-way Road"
Alt E                   = 0x4BE098FD "Ground Highway"

You can customize the shortcuts to use different keys, see the documentation at the top of the KEYCFG file.

If you are using a mod that alters the city keyboard shortcuts such as CasperVG's AutoHistorical DLL mod, you will need to edit the KEYCFG file included in that mod.

System Requirements

• SimCity 4, version 1.1.641 (the digital release)
• Windows 10 or later, or Linux

The plugin may work on Windows 7 or later with the Microsoft Visual C++ 2022 x86 Redistribute installed, but I do not have the ability to test that.

Installation

1. Close SimCity 4.
2. Copy NAM.dll into the top-level directory of either Plugins folder.
3. Copy the supplemental files into your Plugins folder.
4. Start SimCity 4.

Troubleshooting

The plugin should write a NAM.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 GNU Lesser General Public License version 3.0. See LICENSE.txt for more information.

3rd party code

gzcom-dll MIT License. Windows Implementation Library MIT License SC4Fix MIT License

Source Code

Prerequisites

• Visual Studio 2022
• git submodule update --init

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.

Building the DLL on Linux

It is possible to compile the DLL on Linux using clang as a cross-compiler. Check the Makefile for details.