Grand Strategy Map GDextension

GS Map is a Godot 4.4 GDExtension that provides editor tools for interacting with Europa Universalis provinces and country data as well as a shader pipeline that renders a map with smooth borders.

Features

• Smooth borders using HQX shader
• Compute abstraction for generating color_map, lookup_color and political_mask
• Export/import functionality based on Europa Universalis 4 format
• Custom Inspector window for editing country data

Minimal Demo Example using Gdscript

In the main.tscn scene you can understand how to use the custom nodes:

Controls

Arrow keys to move the camera Middle mouse to zoom in or out Ctrl + Click will select a country Click will change ownership between the province clicked and the selected country if there is one

References

The intel paper describing the shader techniques. I found the HQX shader to godot in this repo.