Method _updateContainerForces

Engine/source/T3D/physics/physicsShape.cpp:1000–1049

}

void PhysicsShape::_updateContainerForces()
{
   PROFILE_SCOPE( PhysicsShape_updateContainerForces );

   // If we're not simulating don't update forces.
   if ( !mWorld->isEnabled() )
      return;

   ContainerQueryInfo info;
   info.box = getWorldBox();
   info.mass = getDataBlock()->mass;

   // Find and retreive physics info from intersecting WaterObject(s)
   getContainer()->findObjects( getWorldBox(), WaterObjectType|PhysicalZoneObjectType, findRouter, &info );

   // Calculate buoyancy and drag
   F32 angDrag = getDataBlock()->angularDamping;
   F32 linDrag = getDataBlock()->linearDamping;
   F32 buoyancy = 0.0f;
   Point3F cmass = mPhysicsRep->getCMassPosition();

   F32 density = getDataBlock()->buoyancyDensity;
   if ( density > 0.0f )
   {
      if ( info.waterCoverage > 0.0f )
      {
         F32 waterDragScale = info.waterViscosity * getDataBlock()->waterDampingScale;
         F32 powCoverage = mPow( info.waterCoverage, 0.25f );

         angDrag = mLerp( angDrag, angDrag * waterDragScale, powCoverage );
         linDrag = mLerp( linDrag, linDrag * waterDragScale, powCoverage );
      }

      buoyancy = ( info.waterDensity / density ) * mPow( info.waterCoverage, 2.0f );
      
      // A little hackery to prevent oscillation
      // Based on this blog post:
      // (http://reinot.blogspot.com/2005/11/oh-yes-they-float-georgie-they-all.html)
      // JCF: disabled!
      Point3F buoyancyForce = buoyancy * -mWorld->getGravity() * TickSec * getDataBlock()->mass;
      mPhysicsRep->applyImpulse( cmass, buoyancyForce );      
   }

   // Update the dampening as the container might have changed.
   mPhysicsRep->setDamping( linDrag, angDrag );
   
   // Apply physical zone forces.
   if ( !info.appliedForce.isZero() )
      mPhysicsRep->applyImpulse( cmass, info.appliedForce );
}

void PhysicsShape::prepRenderImage( SceneRenderState *state )
{