tahamajs/CPS/Files/ComputerAssignments/CA2/code/pc/airmouse_go_new/control/mouse - Storage Bucket

11. Go Desktop Mouse & Keyboard Control Engine (control/mouse)

Architecture Overview

The control/mouse package translates incoming motion vectors and gesture packets into OS-level cursor movements, mouse clicks, scrolling, and hotkey executions.

---

Core Algorithms & Math Models

1. Power-Law Cursor Acceleration

Applies a non-linear velocity scaling curve to raw delta displacement ($\Delta X, \Delta Y$): $$v_{scaled}=\text{sign}(v)\cdot \mathrm{\mid }v{\mathrm{\mid }}^{\gamma }\cdot Sv\_\{scaled\}\; =\; \backslash text\{sign\}(v)\; \backslash cdot\; |v|^\backslash gamma\; \backslash cdot\; S$$ where $\gamma = 1.5$ (acceleration exponent) and $S$ is user sensitivity scaling.

2. Predictive Kalman Blending

• Uses a 2D Kalman filter to smooth jitter and predict cursor trajectory, reducing perceived lag during rapid hand movements.

3. OS Cursor Control

• Interacts with OS input sub-systems (macOS CGEvent, Linux XTest / uinput, Windows SendInput).
• Executes left, right, middle, and double clicks, vertical/horizontal scrolls, and drag operations.