code/modules/surgery/surgery_helpers.dm 
| /proc/get_pain_modifier | returns modfier to make surgery harder if patient is conscious and feels pain |
|---|---|
| /proc/on_operable_surface | check if mob is lying down on something we can operate on. |
| /proc/get_location_accessible | This proc is made to check if we can interact or use (directly or in the other way) the specific bodypart Not to check if one clothing blocks access to the other clothing for that we have flags_inv var |