X-Git-Url: https://git.mxchange.org/?a=blobdiff_plain;f=src%2FMain%2Fviewmgr.cxx;h=eba47d0c974de2a7635e3cabaa1cd83deae449cd;hb=f6e80608797fa9ab9d44444eb7b031e412b83067;hp=e9170f0fac47153bdc5a3a71d0a5c173f50dfba8;hpb=cf6022e43937bc19dc97885fb8248e67e69b6ad8;p=flightgear.git

diff --git a/src/Main/viewmgr.cxx b/src/Main/viewmgr.cxx
index e9170f0fa..eba47d0c9 100644
--- a/src/Main/viewmgr.cxx
+++ b/src/Main/viewmgr.cxx
@@ -1,6 +1,7 @@
 // viewmgr.cxx -- class for managing all the views in the flightgear world.
 //
 // Written by Curtis Olson, started October 2000.
+//   partially rewritten by Jim Wilson March 2002
 //
 // Copyright (C) 2000  Curtis L. Olson  - curt@flightgear.org
 //
@@ -20,15 +21,459 @@
 //
 // $Id$
 
+#include <string.h>		// strcmp
+
+#include <plib/sg.h>
 
 #include "viewmgr.hxx"
+#include "fg_props.hxx"
 
 
 // Constructor
-FGViewMgr::FGViewMgr( void ) {
+FGViewMgr::FGViewMgr( void ) :
+  axis_long(0),
+  axis_lat(0),
+  current(0)
+{
 }
 
 
 // Destructor
 FGViewMgr::~FGViewMgr( void ) {
 }
+
+void
+FGViewMgr::init ()
+{
+  char stridx [ 20 ];
+  string viewpath, nodepath, strdata;
+  bool from_model = false;
+  bool at_model = false;
+  int from_model_index = 0;
+  int at_model_index = 0;
+  double x_offset_m, y_offset_m, z_offset_m;
+  double near_m;
+
+  for (int i = 0; i < fgGetInt("/sim/number-views"); i++) {
+    viewpath = "/sim/view";
+    sprintf(stridx, "[%d]", i);
+    viewpath += stridx;
+
+    // find out what type of view this is...
+    nodepath = viewpath;
+    nodepath += "/type";
+    strdata = fgGetString(nodepath.c_str());
+
+    // FIXME:
+    // this is assumed to be an aircraft model...we will need to read
+    // model-from-type as well.
+    // find out if this is a model we are looking from...
+    nodepath = viewpath;
+    nodepath += "/config/from-model";
+    from_model = fgGetBool(nodepath.c_str());
+
+    // get model index (which model)
+    if (from_model) {
+      nodepath = viewpath;
+      nodepath += "/config/from-model-idx";
+      from_model_index = fgGetInt(nodepath.c_str());     
+    }
+
+    if ( strcmp("lookat",strdata.c_str()) == 0 ) {
+      // find out if this is a model we are looking at...
+      nodepath = viewpath;
+      nodepath += "/config/at-model";
+      at_model = fgGetBool(nodepath.c_str());
+
+      // get model index (which model)
+      if (at_model) {
+        nodepath = viewpath;
+        nodepath += "/config/at-model-idx";
+        at_model_index = fgGetInt(nodepath.c_str());     
+      }
+    }
+
+    nodepath = viewpath;
+    nodepath += "/config/x-offset-m";
+    x_offset_m = fgGetDouble(nodepath.c_str());
+    nodepath = viewpath;
+    nodepath += "/config/y-offset-m";
+    y_offset_m = fgGetDouble(nodepath.c_str());
+    nodepath = viewpath;
+    nodepath += "/config/z-offset-m";
+    z_offset_m = fgGetDouble(nodepath.c_str());
+
+    nodepath = viewpath;
+    nodepath += "/config/ground-level-nearplane-m";
+    near_m = fgGetDouble(nodepath.c_str());
+
+    // supporting two types now "lookat" = 1 and "lookfrom" = 0
+    if ( strcmp("lookat",strdata.c_str()) == 0 )
+      add_view(new FGViewer ( FG_LOOKAT, from_model, from_model_index,
+                              at_model, at_model_index, x_offset_m, y_offset_m,
+                              z_offset_m, near_m ));
+    else
+      add_view(new FGViewer ( FG_LOOKFROM, from_model, from_model_index, false,
+                              0, x_offset_m, y_offset_m, z_offset_m, near_m ));
+
+  }
+
+  copyToCurrent();
+  
+}
+
+typedef double (FGViewMgr::*double_getter)() const;
+
+void
+FGViewMgr::bind ()
+{
+  // these are bound to the current view properties
+  fgTie("/sim/current-view/heading-offset-deg", this,
+	&FGViewMgr::getViewOffset_deg, &FGViewMgr::setViewOffset_deg);
+  fgSetArchivable("/sim/current-view/heading-offset-deg");
+  fgTie("/sim/current-view/goal-heading-offset-deg", this,
+	&FGViewMgr::getGoalViewOffset_deg, &FGViewMgr::setGoalViewOffset_deg);
+  fgSetArchivable("/sim/current-view/goal-heading-offset-deg");
+  fgTie("/sim/current-view/pitch-offset-deg", this,
+	&FGViewMgr::getViewTilt_deg, &FGViewMgr::setViewTilt_deg);
+  fgSetArchivable("/sim/current-view/pitch-offset-deg");
+  fgTie("/sim/current-view/goal-pitch-offset-deg", this,
+	&FGViewMgr::getGoalViewTilt_deg, &FGViewMgr::setGoalViewTilt_deg);
+  fgSetArchivable("/sim/current-view/goal-pitch-offset-deg");
+
+  fgTie("/sim/current-view/axes/long", this,
+	(double_getter)0, &FGViewMgr::setViewAxisLong);
+  fgTie("/sim/current-view/axes/lat", this,
+	(double_getter)0, &FGViewMgr::setViewAxisLat);
+
+  fgTie("/sim/current-view/field-of-view", this,
+	&FGViewMgr::getFOV_deg, &FGViewMgr::setFOV_deg);
+  fgSetArchivable("/sim/current-view/field-of-view");
+
+  fgTie("/sim/current-view/ground-level-nearplane-m", this,
+	&FGViewMgr::getNear_m, &FGViewMgr::setNear_m);
+  fgSetArchivable("/sim/current-view/ground-level-nearplane-m");
+
+}
+
+void
+FGViewMgr::unbind ()
+{
+  // FIXME:
+  // need to redo these bindings to the new locations (move to viewer?)
+  fgUntie("/sim/current-view/heading-offset-deg");
+  fgUntie("/sim/current-view/goal-heading-offset-deg");
+  fgUntie("/sim/current-view/pitch-offset-deg");
+  fgUntie("/sim/current-view/goal-pitch-offset-deg");
+  fgUntie("/sim/field-of-view");
+  fgUntie("/sim/current-view/axes/long");
+  fgUntie("/sim/current-view/axes/lat");
+}
+
+void
+FGViewMgr::update (double dt)
+{
+  char stridx [20];
+  string viewpath, nodepath;
+  double lon_deg, lat_deg, alt_ft, roll_deg, pitch_deg, heading_deg;
+
+  FGViewer * view = get_current_view();
+  if (view == 0)
+    return;
+
+  // 
+  int i = current;
+  viewpath = "/sim/view";
+  sprintf(stridx, "[%d]", i);
+  viewpath += stridx;
+
+
+  FGViewer *loop_view = (FGViewer *)get_view( i );
+
+		// Set up view location and orientation
+
+  nodepath = viewpath;
+  nodepath += "/config/from-model";
+  if (!fgGetBool(nodepath.c_str())) {
+    nodepath = viewpath;
+    nodepath += "/config/eye-lon-deg-path";
+    lon_deg = fgGetDouble(fgGetString(nodepath.c_str()));
+    nodepath = viewpath;
+    nodepath += "/config/eye-lat-deg-path";
+    lat_deg = fgGetDouble(fgGetString(nodepath.c_str()));
+    nodepath = viewpath;
+    nodepath += "/config/eye-alt-ft-path";
+    alt_ft = fgGetDouble(fgGetString(nodepath.c_str()));
+    nodepath = viewpath;
+    nodepath += "/config/eye-roll-deg-path";
+    roll_deg = fgGetDouble(fgGetString(nodepath.c_str()));
+    nodepath = viewpath;
+    nodepath += "/config/eye-pitch-deg-path";
+    pitch_deg = fgGetDouble(fgGetString(nodepath.c_str()));
+    nodepath = viewpath;
+    nodepath += "/config/eye-heading-deg-path";
+    heading_deg = fgGetDouble(fgGetString(nodepath.c_str()));
+    loop_view->setPosition(lon_deg, lat_deg, alt_ft);
+    loop_view->setOrientation(roll_deg, pitch_deg, heading_deg);
+  } else {
+    // force recalc in viewer
+    loop_view->set_dirty();
+  }
+
+  // if lookat (type 1) then get target data...
+  if (loop_view->getType() == FG_LOOKAT) {
+    nodepath = viewpath;
+    nodepath += "/config/from-model";
+    if (!fgGetBool(nodepath.c_str())) {
+      nodepath = viewpath;
+      nodepath += "/config/target-lon-deg-path";
+      lon_deg = fgGetDouble(fgGetString(nodepath.c_str()));
+      nodepath = viewpath;
+      nodepath += "/config/target-lat-deg-path";
+      lat_deg = fgGetDouble(fgGetString(nodepath.c_str()));
+      nodepath = viewpath;
+      nodepath += "/config/target-alt-ft-path";
+      alt_ft = fgGetDouble(fgGetString(nodepath.c_str()));
+      nodepath = viewpath;
+      nodepath += "/config/target-roll-deg-path";
+      roll_deg = fgGetDouble(fgGetString(nodepath.c_str()));
+      nodepath = viewpath;
+      nodepath += "/config/target-pitch-deg-path";
+      pitch_deg = fgGetDouble(fgGetString(nodepath.c_str()));
+      nodepath = viewpath;
+      nodepath += "/config/target-heading-deg-path";
+      heading_deg = fgGetDouble(fgGetString(nodepath.c_str()));
+     
+      loop_view ->setTargetPosition(lon_deg, lat_deg, alt_ft);
+      loop_view->setTargetOrientation(roll_deg, pitch_deg, heading_deg);
+    } else {
+      loop_view->set_dirty();
+    }
+  }
+  setPilotXOffset_m(fgGetDouble("/sim/current-view/x-offset-m"));
+  setPilotYOffset_m(fgGetDouble("/sim/current-view/y-offset-m"));
+  setPilotZOffset_m(fgGetDouble("/sim/current-view/z-offset-m"));
+
+  			        // Update the current view
+  do_axes();
+  view->update(dt);
+}
+
+void
+FGViewMgr::copyToCurrent()
+{
+    fgSetDouble("/sim/current-view/x-offset-m", getPilotXOffset_m());
+    fgSetDouble("/sim/current-view/y-offset-m", getPilotYOffset_m());
+    fgSetDouble("/sim/current-view/z-offset-m", getPilotZOffset_m());
+}
+
+
+double
+FGViewMgr::getViewOffset_deg () const
+{
+  const FGViewer * view = get_current_view();
+  return (view == 0 ? 0 : view->getHeadingOffset_deg());
+}
+
+void
+FGViewMgr::setViewOffset_deg (double offset)
+{
+  FGViewer * view = get_current_view();
+  if (view != 0) {
+    view->setGoalHeadingOffset_deg(offset);
+    view->setHeadingOffset_deg(offset);
+  }
+}
+
+double
+FGViewMgr::getGoalViewOffset_deg () const
+{
+  const FGViewer * view = get_current_view();
+  return (view == 0 ? 0 : view->getGoalHeadingOffset_deg());
+}
+
+void
+FGViewMgr::setGoalViewOffset_deg (double offset)
+{
+  FGViewer * view = get_current_view();
+  if (view != 0)
+    view->setGoalHeadingOffset_deg(offset);
+}
+
+double
+FGViewMgr::getViewTilt_deg () const
+{
+  const FGViewer * view = get_current_view();
+  return (view == 0 ? 0 : view->getPitchOffset_deg());
+}
+
+void
+FGViewMgr::setViewTilt_deg (double tilt)
+{
+  FGViewer * view = get_current_view();
+  if (view != 0) {
+    view->setGoalPitchOffset_deg(tilt);
+    view->setPitchOffset_deg(tilt);
+  }
+}
+
+double
+FGViewMgr::getGoalViewTilt_deg () const
+{
+  const FGViewer * view = get_current_view();
+  return (view == 0 ? 0 : view->getGoalPitchOffset_deg());
+}
+
+void
+FGViewMgr::setGoalViewTilt_deg (double tilt)
+{
+  FGViewer * view = get_current_view();
+  if (view != 0)
+    view->setGoalPitchOffset_deg(tilt);
+}
+
+double
+FGViewMgr::getPilotXOffset_m () const
+{
+  const FGViewer * view = get_current_view();
+  if (view != 0) {
+    return ((FGViewer *)view)->getXOffset_m();
+  } else {
+    return 0;
+  }
+}
+
+void
+FGViewMgr::setPilotXOffset_m (double x)
+{
+  FGViewer * view = get_current_view();
+  if (view != 0) {
+    view->setXOffset_m(x);
+  }
+}
+
+double
+FGViewMgr::getPilotYOffset_m () const
+{
+  const FGViewer * view = get_current_view();
+  if (view != 0) {
+    return ((FGViewer *)view)->getYOffset_m();
+  } else {
+    return 0;
+  }
+}
+
+void
+FGViewMgr::setPilotYOffset_m (double y)
+{
+  FGViewer * view = get_current_view();
+  if (view != 0) {
+    view->setYOffset_m(y);
+  }
+}
+
+double
+FGViewMgr::getPilotZOffset_m () const
+{
+  const FGViewer * view = get_current_view();
+  if (view != 0) {
+    return ((FGViewer *)view)->getZOffset_m();
+  } else {
+    return 0;
+  }
+}
+
+void
+FGViewMgr::setPilotZOffset_m (double z)
+{
+  FGViewer * view = get_current_view();
+  if (view != 0) {
+    view->setZOffset_m(z);
+  }
+}
+
+double
+FGViewMgr::getFOV_deg () const
+{
+  const FGViewer * view = get_current_view();
+  return (view == 0 ? 0 : view->get_fov());
+}
+
+void
+FGViewMgr::setFOV_deg (double fov)
+{
+  FGViewer * view = get_current_view();
+  if (view != 0)
+    view->set_fov(fov);
+}
+
+double
+FGViewMgr::getNear_m () const
+{
+  const FGViewer * view = get_current_view();
+  return (view == 0 ? 0.5f : view->getNear_m());
+}
+
+void
+FGViewMgr::setNear_m (double near_m)
+{
+  FGViewer * view = get_current_view();
+  if (view != 0)
+    view->setNear_m(near_m);
+}
+
+void
+FGViewMgr::setViewAxisLong (double axis)
+{
+  axis_long = axis;
+}
+
+void
+FGViewMgr::setViewAxisLat (double axis)
+{
+  axis_lat = axis;
+}
+
+void
+FGViewMgr::do_axes ()
+{
+				// Take no action when hat is centered
+  if ( ( axis_long <  0.01 ) &&
+       ( axis_long > -0.01 ) &&
+       ( axis_lat  <  0.01 ) &&
+       ( axis_lat  > -0.01 )
+     )
+    return;
+
+  double viewDir = 999;
+
+  /* Do all the quick and easy cases */
+  if (axis_long < 0) {		// Longitudinal axis forward
+    if (axis_lat == axis_long)
+      viewDir = 45;
+    else if (axis_lat == - axis_long)
+      viewDir = 315;
+    else if (axis_lat == 0)
+      viewDir = 0;
+  } else if (axis_long > 0) {	// Longitudinal axis backward
+    if (axis_lat == - axis_long)
+      viewDir = 135;
+    else if (axis_lat == axis_long)
+      viewDir = 225;
+    else if (axis_lat == 0)
+      viewDir = 180;
+  } else if (axis_long == 0) {	// Longitudinal axis neutral
+    if (axis_lat < 0)
+      viewDir = 90;
+    else if (axis_lat > 0)
+      viewDir = 270;
+    else return; /* And assertion failure maybe? */
+  }
+
+				// Do all the difficult cases
+  if ( viewDir > 900 )
+    viewDir = SGD_RADIANS_TO_DEGREES * atan2 ( -axis_lat, -axis_long );
+  if ( viewDir < -1 ) viewDir += 360;
+
+  get_current_view()->setGoalHeadingOffset_deg(viewDir);
+}