| Class | Description | |
|---|---|---|
| Constraint | The base class upon which all constraints are created. | |
| FisixContainer | A class for creating primitives which serve as the bounds for other objects. | |
| Magnet | A magnet for attracting and repelling objects. | |
| Particle | The parent class for all dynamic objects. | |
| Surface | A static surface (doesn't move) |