Editing Vessel module sequence diagram

==Vessel creation==
[[Image:VesselCreation.png|thumb|right|200px|UML sequence of a vessel creation]]

When [[Orbiter]] discovers a new [[vessel]] in a [[scenario file]], a fixed sequence of events take place:

* Orbiter seeks the [[configuration file]] in the folder "config" or alternativly "config/Vessel" and parses it. If it has a "module" attribute, Orbiter loads the DLL (unless it was already loaded)
* If the DLL gets loaded the first time, Orbiter calls [[DLLInit]]. 
* After that, Orbiter calls the callback function [[ovcInit]], requesting the DLL to create a new [[VESSEL2]] object
* When the VESSEL2 derived object was created and returned to Orbiter, Orbiter calls [[VESSEL2::clbkSetClassCaps]] together with a file handle to the current configuration file. (Note: its possible to have multiple configuration files point at the same DLL)
* When the vessel was initially created, Orbiter gives the current section of the scenario file to the vessel by calling the callback [[VESSEL2::clbkLoadStateEx]].
* After the scenario block was parsed and the initial vessel state set, Orbiter calls [[VESSEL2::clbkSetStateEx]].
* Now, the vessel is almost ready to be used. Before the simulation starts, Orbiter calls [[VESSEL2::clbkPostCreation]] to let the vessel set the animations and initialize other data which depends on the beginning simulation state.

[[Category: VESSEL]]