Problem Load and Save State

marcogavazzeni · Jul 16, 2010

Hi guys
I have a problem with saving the state of the scenario.
I have a door that I would like to open and close, and save the state in the scenario, but every time I start the scenario the door is always closed.
What's wrong?

Code:

// --------------------------------------------------------------
// Read status from scenario file
// --------------------------------------------------------------
void ShuttlePB::clbkLoadStateEx (FILEHANDLE scn, void *vs)
{
 char *line;
 
 while (oapiReadScenario_nextline (scn, line)) {
        if (!strnicmp (line, "HATCH1", 4)) {
   sscanf (line+4, "%d%lf", &hatch1_status, &hatch1_proc);
  } 
 else {
            ParseScenarioLineEx (line, vs);
   // unrecognised option - pass to Orbiter's generic parser
 }
}
}
// --------------------------------------------------------------
// Write status to scenario file
// --------------------------------------------------------------
void ShuttlePB::clbkSaveState (FILEHANDLE scn)
{
 char cbuf[256];
 // Write default vessel parameters
 VESSEL2::clbkSaveState (scn);
 
 if (hatch1_status) {
  sprintf (cbuf, "%d %0.4f", hatch1_status, hatch1_proc);
  oapiWriteScenario_string (scn, "HATCH1", cbuf);
    }  
}
// --------------------------------------------------------------
// Respond to playback event
// --------------------------------------------------------------
bool ShuttlePB::clbkPlaybackEvent (double simt, double event_t, const char *event_type, const char *event)
{
 if (!stricmp (event_type, "HATCH1")) {
  ActivateHatch1 (!stricmp (event, "OPEN") ? DOOR_CLOSING : DOOR_OPENING);
  return true;
  }
 return false;
}
void ShuttlePB::clbkSetStateEx(const void *status)
{
 DefSetStateEx(status);
}
 void ShuttlePB::clbkPostCreation()
{
  //Set animation states
 
  SetAnimation (anim_hatch1, hatch1_proc);
   
}

I thank all those who can help :tiphat:

dbeachy1 · Jul 17, 2010

The problem is that clbkLoadStateEx is parsing the line incorrectly.

The fix is shown below in red:

Code:

// --------------------------------------------------------------
// Read status from scenario file
// --------------------------------------------------------------
void ShuttlePB::clbkLoadStateEx (FILEHANDLE scn, void *vs)
{
    char *line;

    while (oapiReadScenario_nextline (scn, line)) {
        if (!strnicmp (line, "HATCH1", [COLOR="Red"]6[/COLOR])) {  [COLOR="red"]// use correct length there, although parsing still succeeded just on "HATC" before[/COLOR]
            [COLOR="red"]// must use 'line+6' here to skip over the "HATCH1" and parse the numbers that come after it[/COLOR]
            sscanf (line+[COLOR="red"]6[/COLOR], "%d%lf", &hatch1_status, &hatch1_proc);
        } 
        else {
            ParseScenarioLineEx (line, vs);
            // unrecognised option - pass to Orbiter's generic parser
        }
    }
}

Previously it was trying to parse the int and float at index 4, so it always tried to parse "H1" as the numbers (which would fail), and so hatch1_status and hatch1_proc would remain unchanged by the scenario load.

marcogavazzeni · Jul 17, 2010

Thank you very much
Now saves correctly
Adding more moving parts but are still at the starting point.
What I wrong?:idk:

Code:

#define STRICT
#define ORBITER_MODULE
#include "orbitersdk.h"
#include "ssi.h"
#include <math.h>
#include <stdio.h>
#include <iostream>
#include <stdlib.h>
#include <fstream.h>
 
// ==============================================================
// Some vessel parameters
// ==============================================================
const double PB_FUELMASS = 750.0;
const double PB_ISP = 5e4;
const double PB_MAXMAINTH = 3e4;
const double PB_MAXHOVERTH = 1.5e4;
const double PB_MAXRCSTH = 2e2;
//const VECTOR3 PB_DOCK_POS   = {0,1.3,-1};      // docking port location [m]
//const VECTOR3 PB_DOCK_DIR   = {0,1,0};         // docking port approach direction
//const VECTOR3 PB_DOCK_ROT   = {0,0,-1};        // docking port alignment direction
 
// ==============================================================
// Shuttle-PB class interface
// ==============================================================
 
 ShuttlePB::ShuttlePB (OBJHANDLE hObj, int fmodel)
: VESSEL2 (hObj, flightmodel)
{
 hatch1_status       = DOOR_CLOSED;
 hatch1_proc         = 0.0; 
 hatch2_status       = DOOR_CLOSED;
 hatch2_proc         = 0.0;
 DefineAnimations ();
 f151   = oapiLoadMeshGlobal ("supportovitale");
 f152   = oapiLoadMeshGlobal ("RoomSV");
 
 int i;
};
//Destructor
ShuttlePB::~ShuttlePB ()
{
 
}
// ==============================================================
// Overloaded callback functions
// ==============================================================
// --------------------------------------------------------------
// Set the capabilities of the vessel class
// --------------------------------------------------------------
void ShuttlePB::clbkSaveState (FILEHANDLE scn)
{
 char cbuf[256];
 int i;
 // Write default vessel parameters
 VESSEL2::clbkSaveState (scn);
 
 if (hatch1_status) {
  sprintf (cbuf, "%d %0.4f", hatch1_status, hatch1_proc);
  oapiWriteScenario_string (scn, "HATCH1", cbuf);
    }  
    if (hatch2_status) { 
  sprintf (cbuf, "%d %0.4f", hatch2_status, hatch2_proc);
  oapiWriteScenario_string (scn, "HATCH2", cbuf);
 } 
}
void ShuttlePB::clbkLoadStateEx (FILEHANDLE scn, void *vs)
{
 char *line;
 
 while (oapiReadScenario_nextline (scn, line)) {
        if (!strnicmp (line, "HATCH1", 6)) {
   sscanf (line+4, "%d%lf", &hatch1_status, &hatch1_proc);
  } else if (!strnicmp (line, "HATCH2", 6)) {
   sscanf (line+5, "%d%lf", &hatch2_status, &hatch2_proc);
  } 
 else {
            ParseScenarioLineEx (line, vs);
   // unrecognised option - pass to Orbiter's generic parser
 }
}
}
void ShuttlePB::clbkPostCreation()
{
 
 
  SetAnimation (anim_hatch1, hatch1_proc);
 
  SetAnimation (anim_hatch2, hatch2_proc);
 
} 
void ShuttlePB::clbkSetClassCaps (FILEHANDLE cfg)
{
 THRUSTER_HANDLE th_main, th_hover, th_rcs[14], th_group[4];
 // physical specs
 SetSize (8);
 SetEmptyMass (21460);
 SetCW (0.3, 0.3, 0.6, 0.9);
// SetWingAspect (0.7);
// SetWingEffectiveness (2.5);
 SetCrossSections (_V(10.5,15.0,5.8));
 SetRotDrag (_V(0.6,0.6,0.35));
 SetPMI (_V(2.28,2.31,0.79));
// SetTrimScale (0.05);
 SetCameraOffset (_V(0,0.350,6.05));
// SetLiftCoeffFunc (LiftCoeff);
// SetTouchdownPoints (_V(0,-1.5,2), _V(-1,-1.5,-1.5), _V(1,-1.5,-1.5));
    Dock0 = CreateDock(_V(5.0,0.0,0.0), _V(0,0,-1), _V(0,1,0));
    Dock1 = CreateDock(_V(0.0,0.434,-6.83), _V(0,0,-1), _V(0,-1,0));
    Dock2 = CreateDock(_V(0.0,0.434,6.83), _V(0,0,1), _V(0,-1,0));
 // propellant resources
 
 // visual specs
 AddMesh (f151);
// SetMeshVisibilityMode( AddMesh (f151,&offset), MESHVIS_EXTERNAL |MESHVIS_VC);
 SetMeshVisibilityMode( AddMesh (f152,&offsetvc), MESHVIS_VC );
 
 
}
void ShuttlePB::clbkPostStep (double simt, double SimDT, double mjd)
{
 // animate hatch1
 if (hatch1_status >= DOOR_CLOSING) {
  double da = oapiGetSimStep() * HATCH1_OPERATING_SPEED;
  if (hatch1_status == DOOR_CLOSING) {
   if (hatch1_proc > 0.0)
    hatch1_proc = max (0.0, hatch1_proc-da);
   else {
    hatch1_status = DOOR_CLOSED;
    }
  } else  { // door opening
   if (hatch1_proc < 1.0)
    hatch1_proc = min (1.0, hatch1_proc+da);
   else {
    hatch1_status = DOOR_OPEN;
   }
  }
  SetAnimation (anim_hatch1, hatch1_proc);
 }
 // animate hatch2
 if (hatch2_status >= DOOR_CLOSING) {
  double da = oapiGetSimStep() * HATCH2_OPERATING_SPEED;
  if (hatch2_status == DOOR_CLOSING) {
   if (hatch2_proc > 0.0)
    hatch2_proc = max (0.0, hatch2_proc-da);
   else {
    hatch2_status = DOOR_CLOSED;
    }
  } else  { // door opening
   if (hatch2_proc < 1.0)
    hatch2_proc = min (1.0, hatch2_proc+da);
   else {
    hatch2_status = DOOR_OPEN;
   }
  }
  SetAnimation (anim_hatch2, hatch2_proc);
 }
}
 
//==========================================================================================
void ShuttlePB::DefineAnimations ()
{
   static UINT hatch1[1] = {4};                //  rot.point      rot.axis        angle
   static MGROUP_ROTATE htch1 (0,hatch1, 1, _V(0.0,0.98,5.33), _V(1,0,0), (float)(105*RAD));
 
   anim_hatch1 = CreateAnimation (0.0);
   AddAnimationComponent  (anim_hatch1, 0, 1,&htch1);
 
   static UINT hatch2[1] = {5};
   static MGROUP_ROTATE htch2 (0,hatch2,1, _V(0.0,1.2,-6.1), _V(1,0,0), (float)(-105*RAD));
 
   anim_hatch2 = CreateAnimation (0.0);
   AddAnimationComponent  (anim_hatch2, 0, 1,&htch2);
  } 
 //=========================================================================================== 
 void ShuttlePB::ActivateHatch1 (DoorStatus action)
{
 hatch1_status = action;
}
void ShuttlePB::RevertHatch1 ()
{
 ActivateHatch1 (hatch1_status == DOOR_CLOSED || hatch1_status == DOOR_CLOSING ?
               DOOR_OPENING : DOOR_CLOSING);
}
//===========================================================================================
void ShuttlePB::ActivateHatch2 (DoorStatus action)
{
 hatch2_status = action;
}
void ShuttlePB::RevertHatch2 ()
{
 ActivateHatch2 (hatch2_status == DOOR_CLOSED || hatch2_status == DOOR_CLOSING ?
               DOOR_OPENING : DOOR_CLOSING);
}
//==========================================================================================
    int ShuttlePB::clbkConsumeBufferedKey(DWORD key, bool down, char *kstate)
{
 
 if (!down) return 0;
 switch (key) {
 
  case OAPI_KEY_K:  // operate hatch1
    RevertHatch1();
  return 1;
 
  case OAPI_KEY_G:  // operate hatch1
    RevertHatch2();
  return 1; 
 
  }
return 0;
  }
 
bool ShuttlePB::clbkLoadVC (int id)
{
 SetCameraOffset (_V(0,0.350,6.05));
 SetCameraDefaultDirection (_V(0,0,1));
    SetCameraRotationRange (RAD*90, RAD*90, RAD*90, RAD*90);
    static VCMFDSPEC mfds_left = {1, 2};
    static VCMFDSPEC mfds_right = {1, 1};
    oapiVCRegisterMFD (MFD_LEFT, &mfds_left);
    oapiVCRegisterMFD (MFD_RIGHT, &mfds_right);
 static VCHUDSPEC hud_pilot  = {1, 0,{0,0.350,6.50},0.5};
 oapiVCRegisterHUD (&hud_pilot);
 return true;
}
// ==============================================================
// API callback interface
// ==============================================================
// --------------------------------------------------------------
// Vessel initialisation
// --------------------------------------------------------------
DLLCLBK VESSEL *ovcInit (OBJHANDLE hvessel, int flightmodel)
{
 return new ShuttlePB (hvessel, flightmodel);
}
// --------------------------------------------------------------
// Vessel cleanup
// --------------------------------------------------------------
DLLCLBK void ovcExit (VESSEL *vessel)
{
 if (vessel) delete (ShuttlePB*)vessel;

Lucy · Jul 17, 2010

I think it's the same issue again.

Code:

while (oapiReadScenario_nextline (scn, line)) {
        if (!strnicmp (line, "HATCH1", 6)) {
   sscanf (line+[color="red"]4[/color], "%d%lf", &hatch1_status, &hatch1_proc);
  } else if (!strnicmp (line, "HATCH2", 6)) {
   sscanf (line+[color="red"]5[/color], "%d%lf", &hatch2_status, &hatch2_proc);
  }

Both of these red numbers should indicate the end of your "line" string, which is 6 characters long, so they should be "6", not 4 and 5.

marcogavazzeni · Jul 17, 2010

Thanks!
Now everything works properly as it should :tiphat:

Orbiter 2024 has been released!

Problem Load and Save State

marcogavazzeni

Addon Developer

dbeachy1

O-F Administrator

marcogavazzeni

Addon Developer

Lucy

in the sky, with diamonds.

marcogavazzeni

Addon Developer

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