Bad Duck3: DuckyScript 3.0 Interpreter

[dutchpatriot]

Summary

Bad Duck3 - The first DuckyScript 3.0 implementation for Flipper Zero with USB and BLE HID support.

Features

DuckyScript 3.0 Language

• LOOP / END_LOOP - Execute blocks N times
• WHILE / END_WHILE - Conditional loops
• VAR - Variable declaration and assignment
• IF / ELSE / END_IF - Conditional execution
• BREAK / CONTINUE - Loop control
• Expression evaluation with arithmetic and comparison operators
• Built-in variables ($_RANDOM, $_LINE)

Transport Support

• USB HID - Configurable VID/PID, manufacturer, product name
• BLE HID - Configurable device name, MAC address, pairing mode

Backward Compatibility

• All DuckyScript 1.0 commands remain fully supported
• Existing scripts work without modification

Example

Before (DS 1.0):

ENTER
DELAY 500
ENTER
DELAY 500
... (repeat 98 more times)

After (DS 3.0):

LOOP 100
    ENTER
    DELAY 500
END_LOOP

Testing

• USB HID tested
• BLE HID tested
• Nested loops (8 levels)
• Variable operations
• Conditional execution
• Backward compatibility with DS1.0

Credits

• Author: @dutchpatriot
• AI-assisted development with Claude Code (design decisions, testing, debugging done by human)
• DuckyScript 3.0 spec by Hak5