Implements comprehensive entity interaction system:
- Entity class hierarchy inheriting from mcrfpy.Entity
- Non-blocking movement animations with destination tracking
- Bump interactions (combat when hitting enemies, pushing boulders)
- Step-on interactions (buttons that open doors)
- Basic enemy AI with line-of-sight pursuit
- Concurrent animation system (enemies move while player moves)
Also fixes C++ animation system to support Python subclasses:
- Changed PyAnimation::start() to use PyObject_IsInstance instead of strcmp
- Now properly supports inherited entity classes
- Animation system works with any subclass of Frame, Caption, Sprite, Grid, or Entity
This completes the core gameplay mechanics needed for roguelike development.
🤖 Generated with [Claude Code](https://claude.ai/code)
Co-Authored-By: Claude <noreply@anthropic.com>
