collide-cache-h, collide-h, projectile-h, background-h, subdivide-h, hfrag-h, shrubbery-h, tfrag-h, tie-h
- `pov-camera-h` - `sync-info-h` - `trajectory-h` - `collide-target-h` (`control-info` just padded out for now) - `water-info-h` - `process-drawable-h` - `process-focusable` - `focus` - `effect-control-h` - `process-taskable-h` - `generic-obs-h` - `target-h`