Independent / public Windows utility

CCD2 OpenTrack Companion

Head tracking that stops the instant the game context is no longer safe.

01 / Purpose

Purpose and scope.

A safety-gated bridge between OpenTrack head tracking and City Car Driving 2.0. It receives processed head-pose data over local UDP and converts it into mouse-look controls only while the intended game state remains valid.

Translate OpenTrack rotational pose into City Car Driving 2.0 camera movement.

Hold the configured in-game binding only during a deliberately armed driving session.

Stop output immediately when focus, cursor state or tracking freshness becomes unsafe.

Provide repeatable setup, centring controls, deadzones and useful diagnostics.

02 / Interactive demo

CCD2 Companion: when movement becomes input.

Start driving mode and move the simulated pose. Try the Center View sequence, tune sensitivity and deadzones, then close a safety gate and resume.

About this demoAn interactive local preview using fictional data, embedded in this portfolio. A local adaptation of the desktop status and settings panels, with separate simulation controls for pose, timing and input conditions. No webcam, tracking service, game or system input is used. Changes reset when you reload.

CCD2 Companion · functional desktop-panel simulation

CCD2 OpenTrack Companion

Safe mouse-look control for City Car Driving 2.0

DRIVING MODE: OFF — SAFE
CCD2 WINDOW: Foreground
OPENTRACK: UDP data received
CCD2 CURSOR: Hidden

YAW

15°

PITCH

6°

Game bindings

Rotate holdCenter view

Representative binding choices. Selecting one changes the simulated input trace.

Center View range

Center View is pressed when both axes enter this range.

↔ Left / right (degrees)↕ Up / down (degrees)

Use this range as a movement deadzone

How the range works

Entering both ranges triggers one Center press. Leaving either range and returning rearms it. The optional deadzone suppresses each axis independently, with a continuous response at the boundary.

Advanced settings · sensitivity

Yaw pixels / degreePitch pixels / degree

Higher values produce more relative movement. Changes take effect only after saving.

Settings saved in this demo session only.

Demo controls · outside the desktop app

Supply processed tracking samples

Start driving mode, move the pose, then enter a menu or return to the center range.

Illustrated pose · no camera access

Yaw: 15°Pitch: 6°

CCD2 is foregroundTracking sample is freshGame cursor is hidden

Blocked0 ms simulated

LAST MOVEMENTΔx 0 · Δy 0

CENTER PRESSES0

Driving mode is off. Start it before moving the simulated pose.

Center transaction: Idle
Total relative movement: x 0 / y 0
Saved sensitivity: 8 yaw / 8 pitch

Time advances only through these controls. Center sequence: release Rotate → wait 20 ms → hold Center 35 ms → wait 20 ms → fresh baseline.

Input trace (0 recent samples)

No samples yet.

Uses the desktop tool’s sensitivity, sign, jump rejection, continuous deadzones and centering sequence. Time and input are simulated. No OS input, webcam, UDP, game, saved files, OpenTrack setup or experimental cursor guard is operated.

03 / Decisions

Engineering decisions.

Own the output

The companion—not OpenTrack—controls synthetic input so game focus and safety state can participate in every movement decision.

Loopback only

Tracking traffic never needs to leave the machine, which keeps the communication boundary narrow.

Fail closed

Focus loss, a visible cursor or stale data releases held input immediately instead of guessing.

No injection or capture

The design avoids game-memory access, process injection, screen capture and fragile UI automation.

04 / Architecture

How it works.

Track

OpenTrack maps and filters camera input, then sends fixed-size pose packets over loopback UDP.

Gate

A 10 ms state loop checks arming, exact game focus, hidden cursor state and fresh valid tracking.

Convert

Pose deltas become relative mouse movement with centring and deadzone state kept non-blocking.

Recover

A durable marker records held input so the next launch can release exactly the binding left behind.

05 / Technology

The working parts.

C#Windows Forms.NET FrameworkWin32Loopback UDPINI configurationTimer-driven state machinesGitHub Releases

06 / Project status & roadmap

Current state and next steps.

Current

Version 1.2.0 is a stable public GitHub release.
Regression tests and hands-on testing in the game passed for normal movement and the safety stops.
Developed with AI assistance, which the project discloses.

Planned

Test the experimental cursor guard on more display and scaling setups.
Separate positive and negative centring and deadzone ranges.
Manage a portable OpenTrack installation, once the safeguards for it are designed and tested.
New features go to a separate alpha version; 1.2.0 stays unchanged.