//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
-// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
//
// $Id$
#include <simgear/constants.h>
#include <simgear/debug/logstream.hxx>
#include <simgear/math/sg_geodesy.hxx>
+#include <simgear/scene/material/mat.hxx>
+#include <simgear/scene/material/matlib.hxx>
#include <Main/globals.hxx>
#include <Scenery/scenery.hxx>
}
else {
-
// Initialize velocity field.
sgdSetVec3( gp.vel, 0.0, 0.0, 0.0 );
sgdSetVec3( gp.rot, 0.0, 0.0, 0.0 );
sgdSetVec3( gp.pivot, 0.0, 0.0, 0.0 );
- }
-
- // Get the texture name and decide what ground type we have.
- ssgState *st = l->getState();
- if (st != NULL && st->isAKindOf(ssgTypeSimpleState())) {
- ssgSimpleState *ss = (ssgSimpleState*)st;
- SGPath fullPath( ss->getTextureFilename() ? ss->getTextureFilename(): "" );
- string file = fullPath.file();
- SGPath dirPath(fullPath.dir());
- string category = dirPath.file();
-
- if (category == "Runway")
- gp.type = FGInterface::Solid;
- else {
- if (file == "asphault.rgb" || file == "airport.rgb")
- gp.type = FGInterface::Solid;
- else if (file == "water.rgb" || file == "water-lake.rgb")
- gp.type = FGInterface::Water;
- else if (file == "forest.rgb" || file == "cropwood.rgb")
- gp.type = FGInterface::Forest;
- }
+
+ // get some material information for use in the gear model
+ gp.material = globals->get_matlib()->findMaterial(l);
+ if (gp.material)
+ gp.type = gp.material->get_solid() ? FGInterface::Solid : FGInterface::Water;
}
return gp;
for (int i = 0; i < nt; ++i) {
Triangle t;
t.sphere.empty();
+ t.material = gp.material;
short v[3];
l->getTriangle(i, &v[0], &v[1], &v[2]);
for (int k = 0; k < 3; ++k) {
sgdCopyVec3(dst.rotation_pivot, src.rotation_pivot);
dst.type = src.type;
+ dst.material = src.material;
if (dt*sgdLengthSquaredVec3(src.velocity) != 0) {
sgdVec3 pivotoff, vel;
cache_ref_time = ref_time;
// Decide where we put the scenery center.
- Point3D old_cntr = globals->get_scenery()->get_center();
- Point3D cntr(pt[0], pt[1], pt[2]);
+ SGVec3d old_cntr = globals->get_scenery()->get_center();
+ SGVec3d cntr(pt[0], pt[1], pt[2]);
// Only move the cache center if it is unacceptable far away.
- if (40*40 < old_cntr.distance3Dsquared(cntr))
+ if (40*40 < distSqr(old_cntr, cntr))
globals->get_scenery()->set_center(cntr);
else
cntr = old_cntr;
bool
FGGroundCache::get_agl(double t, const double dpt[3], double max_altoff,
double contact[3], double normal[3], double vel[3],
- int *type, double *loadCapacity,
- double *frictionFactor, double *agl)
+ int *type, const SGMaterial** material, double *agl)
{
bool ret = false;
*type = FGInterface::Unknown;
// *agl = 0.0;
- *loadCapacity = DBL_MAX;
- *frictionFactor = 1.0;
+ if (material)
+ *material = 0;
sgdSetVec3( vel, 0.0, 0.0, 0.0 );
sgdSetVec3( contact, 0.0, 0.0, 0.0 );
sgdSetVec3( normal, 0.0, 0.0, 0.0 );
sgdAddVec3(vel, triangle.velocity);
// Save the ground type.
*type = triangle.type;
- // FIXME: figure out how to get that sign ...
-// *agl = sqrt(sqdist);
- *agl = sgdLengthVec3( dpt ) - sgdLengthVec3( contact );
-// *loadCapacity = DBL_MAX;
-// *frictionFactor = 1.0;
+ sgdVec3 dstToContact;
+ sgdSubVec3(dstToContact, contact, dpt);
+ *agl = sgdScalarProductVec3(dir, dstToContact);
+ if (material)
+ *material = triangle.material;
}
}
}
// The altitude is the distance of the requested point from the
// contact point.
- *agl = sgdLengthVec3( dpt ) - sgdLengthVec3( contact );
+ sgdVec3 dstToContact;
+ sgdSubVec3(dstToContact, contact, dpt);
+ *agl = sgdScalarProductVec3(dir, dstToContact);
*type = FGInterface::Unknown;
- *loadCapacity = DBL_MAX;
- *frictionFactor = 1.0;
return ret;
}