K2-D2 [Redux Snapshot 26w33a and Newer]

K2-D2 (Redux port)

An astromech-style autopilot suite for Kerbal Space Program 2, ported to the Redux modding framework from Christophe Floutier's original K2-D2 (built for SpaceWarp1).

K2-D2 gives you one panel (Alt-O or the AppBar icon) with a set of autopilots:

Node - executes the next maneuver node, with auto-circularize at Ap/Pe and one-click buttons to create a node at the next apoapsis or periapsis
Lift - automated ascent guidance with a configurable altitude/heading profile, an optional roll program, and automatic circularization at the end of the climb
Landing - automated descent, braking, and touchdown, with an optional Precision Landing mode (currently bodies with no atmosphere only) that targets a specific site via Redux's waypoint system
Docking - automated final approach and docking
Attitude - point-and-hold attitude control (a simple plane autopilot)

Status

This is a from-scratch port of the original code onto Redux's APIs, not a compatibility shim - it required chasing down and fixing a number of real differences between the old SpaceWarp1/UitkForKsp2 environment and Redux (custom UI controls, orbit representation, and more). The full blow-by-blow of everything found and fixed is in NOTICE.md, kept as a development log for anyone porting a similar mod and hitting the same walls.

Confirmed working (tested in-game):

Full UI - all tabs, styling, custom controls
Node autopilot
Lift/ascent autopilot - flies the configured profile to orbit, including an optional roll program, then creates and flies its own circularization node
Landing autopilot - descent, braking, and touchdown, including collision detection and precision landing on bodies with no atmosphere
Docking autopilot - final approach and main-thrust kill-speed/brake
Attitude hold
Auto-staging, with a player-facing on/off toggle in the window's title bar

Known limitations:

Precision Landing on atmospheric bodies is still a work in progress and isn't exposed in the UI yet - only bodies with no atmosphere have a player-facing Precision Landing option for now.

Installation

Install Redux for Kerbal Space Program 2.
Make sure you're on KSP2 beta snapshot 26w33a or newer (Redux Launcher: Settings [gear icon to the right of the "Mods" tab] > Release Channel > Beta, then update to the latest beta).
Download the latest K2-D2 release and drop the contents into your KSP2 mods folder (merge folders if prompted).

Credits

Christophe Floutier - original K2-D2 mod for SpaceWarp1
IanMealworm - Redux port
Mole - original Circularize work
schlosrat - original testing and code help, especially node creation
Opus - named the mod
cheese3660 - SpaceWarp and AutoBurn, which the original mod was built on
Halbann - LazyOrbit, which the original mod's first steps were based on
KSP2Community - the Redux modding framework and the Redux.Template project scaffold this port is built on

Changelog

See CHANGELOG.md for release notes. License

CC BY-SA 4.0 - see LICENSE.md. Same license as the original K2-D2, inherited as required by its ShareAlike terms.