Programming Question please help with docking functions

[Mr Martian]

hey guys, i am working on the ISV Pegasus V2.0, and i am having a bit of trouble with the lander separation. i want Pegasus to spawn a lander, which i have managed to do, but i want the spawned vessel to be docked to Pegasus as soon as it is spawned. so far i have this:

void Pegasus::OrpheusSep (void)
{
	if (OrpheusState == ATTACHED1) // Sanity check, is there a Lander to jettison?
	{
		VESSELSTATUS vs;
		char name[256];
		VECTOR3 sofs = ORPHEUS_POS;	// Seperation offset			
		VECTOR3	sdir = { 0, 0, 1};		// Seperation direction
		double	svel = 0.03;				// Separation velocity

				// Get vessel status structure
		VECTOR3 rofs;
		GetStatus (vs);
		Local2Rel (sofs, vs.rpos);	
		HorizonRot (sdir, rofs);
		vs.rvel += rofs*svel;
		
				// Create descent stage as seperate vessel
		strcpy (name, GetName()); 
		strcat (name, "-Orpheus");
		oapiCreateVessel (name, "ISV_PEGASUS/LANDERS/Orpheus", vs);	// create descent stage vessel
		DelMesh (Mesh_Orpheus);

		PlayVesselWave(PEGD,SEPERATION,NOLOOP,900,11025);

		Dock (dock_1, 0, 1, 0);

			//Dock (OBJHANDLE target, UINT n, UINT tgtn, UINT mode)
		OrpheusState = DETACHED1;							// Set vessel status to ascent
	}
}

as you can see i have used:

Dock (OBJHANDLE target, UINT n, UINT tgtn, UINT mode)

but i am not quite sure what i am doing wrong, because orbiter crashes whenever i spawn the lander. any help would be much appreciated

 

[Hlynkacg]

Is this the code for the lander or the mother ship?

 

[Mr Martian]

Is this the code for the lander or the mother ship?

this code is for the mother ship. the section: void Pegasus::OrpheusSep (void) has the same function as the StageSeparation function in your lunar lander tutorial.

 

[Zatnikitelman]

Do you know exactly which line Orbiter crashes on?

 

[Mr Martian]

Do you know exactly which line Orbiter crashes on?

no, thats the problem, it doesn't crash with an error, it just says: Orbiter is not responding, and closes.

 

[Zatnikitelman]

If you can step through it with the debugger, that's the best way of finding on which line it crashes. If you're not sure how to do this, you could also stick oapiWriteLog("") at a few places to narrow down where it crashes. Basically if you have a unique string (between the quotes), just look for the last string in Orbiter.log and you know it's between the location of that oapiWriteLog() and the next one.

Something like this:

if (OrpheusState == ATTACHED1) // Sanity check, is there a Lander to jettison?
	{
		VESSELSTATUS vs;
		char name[256];
		VECTOR3 sofs = ORPHEUS_POS;	// Seperation offset			
		VECTOR3	sdir = { 0, 0, 1};		// Seperation direction
		double	svel = 0.03;				// Separation velocity

                [COLOR="Red"]oapiWriteLog("After sep");[/COLOR]
				// Get vessel status structure
		VECTOR3 rofs;
		GetStatus (vs);
		Local2Rel (sofs, vs.rpos);	
		HorizonRot (sdir, rofs);
		vs.rvel += rofs*svel;
		
				// Create descent stage as seperate vessel
		strcpy (name, GetName()); 
		strcat (name, "-Orpheus");
		oapiCreateVessel (name, "ISV_PEGASUS/LANDERS/Orpheus", vs);	// create descent stage vessel
		DelMesh (Mesh_Orpheus);
                [COLOR="Red"]oapiWriteLog("After create");[/COLOR]

		PlayVesselWave(PEGD,SEPERATION,NOLOOP,900,11025);

		Dock (dock_1, 0, 1, 0);

			//Dock (OBJHANDLE target, UINT n, UINT tgtn, UINT mode)
		OrpheusState = DETACHED1;							// Set vessel status to ascent
                [COLOR="Red"]oapiWriteLog("After dock");[/COLOR]
	}