GridPoint.entities (#114):
- Returns list of entities at this grid cell position
- Enables convenient cell-based entity queries without manual iteration
- Example: grid.at(5, 5).entities → [<Entity>, <Entity>]
GridPointState.point (#16):
- Returns GridPoint if entity has discovered this cell, None otherwise
- Respects entity's perspective: undiscovered cells return None
- Enables entity.at(x,y).point.walkable style access
- Live reference: changes to GridPoint are immediately visible
This provides a simpler solution for #16 without the complexity of
caching stale GridPoint copies. The visible/discovered flags indicate
whether the entity "should" trust the data; Python can implement
memory systems if needed.
closes#114, closes#16🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
