void waterFind( SceneObject *obj, void *key )
{
PROFILE_SCOPE( waterFind );
// This is called for each WaterObject the ShapeBase object is overlapping.
ContainerQueryInfo *info = static_cast<ContainerQueryInfo*>(key);
WaterObject *water = dynamic_cast<WaterObject*>(obj);
AssertFatal( water != NULL, "containerQuery - waterFind(), passed object was not of class WaterObject!");
// Get point at the bottom/center of the box.
Point3F testPnt = info->box.getCenter();
testPnt.z = info->box.minExtents.z;
F32 coverage = water->getWaterCoverage(info->box);
// Since a WaterObject can have global bounds we may get this call
// even though we have zero coverage. If so we want to early out and
// not save the water properties.
if ( coverage == 0.0f )
return;
// Add in flow force. Would be appropriate to try scaling it by coverage
// thought. Or perhaps have getFlow do that internally and take
// the box parameter.
info->appliedForce += water->getFlow( testPnt );
// Only save the following properties for the WaterObject with the
// greatest water coverage for this ShapeBase object.
if ( coverage < info->waterCoverage )
return;
info->waterCoverage = coverage;
info->liquidType = water->getLiquidType();
info->waterViscosity = water->getViscosity();
info->waterDensity = water->getDensity();
info->waterHeight = water->getSurfaceHeight( Point2F(testPnt.x,testPnt.y) );
info->waterObject = water;
}
//-----------------------------------------------------------------------------
//
// VActorPhysicsController::postTickUpdate( pDelta );
//
// ...
//
//-----------------------------------------------------------------------------
void VActorPhysicsController::postTickUpdate( const F32 &pDelta )
{
switch( mControlState )
{
case k_PathControlState :
{
AssertFatal( isPathing(), "VActorPhysicsController::postTickUpdate() - Invalid Path State." );
// Fetch Mount Transform.
MatrixF transform;
mMountedPath->getMountTransform( mObject->getMountNode(), getTransform(), &transform );
// Fetch Mount Position.
const Point3F &mountPosition = transform.getPosition();
// Update X & Y Position.
Point3F position = getPosition();
position.x = mountPosition.x;
position.y = mountPosition.y;
// In Water?
bool underWater = false;
if ( isInWater() )
{
// Fetch Body of Water.
WaterObject *waterBody = getWaterObject();
// Fetch Surface Position.
const F32 &waterSurfacePosition = waterBody->getSurfaceHeight( Point2F( position.x, position.y ) );
// Fetch Submersion Position.
const F32 sumbersionPosition = waterSurfacePosition - ( mObject->getWorldBox().len_z() * mObject->getDataBlock()->getSumbergeCoverage() );
// Choose a Z Value.
// Note: This is done so that the Actor will either path under the
// water, or it will swim along the water's surface.
position.z = getMin( mountPosition.z, sumbersionPosition );
// Under Water?
underWater = ( position.z < sumbersionPosition );
}
// Under Water?
if ( !underWater )
{
// Fetch Y Column.
VectorF forwardVector;
transform.getColumn( 1, &forwardVector );
// Determine Angle.
const F32 &angle = -mAtan2( -forwardVector.x, forwardVector.y );
// Reset Transform.
transform.set( EulerF( 0.f, 0.f, angle ) );
// In the air?
if ( !isOnGround() )
{
// Apply z-axis force.
position.z += ( getVelocity().z * pDelta );
}
}
// Update Transform.
transform.setPosition( position );
// Apply Update.
setTransform( transform );
} break;
default :
{
// Fetch Transform.
MatrixF transform = getTransform();
// Determine the Post-Tick Position.
Point3F postTickPosition = getPosition() + ( getVelocity() * pDelta );
// Set the Post Tick Position.
transform.setPosition( postTickPosition );
// Apply the Transform.
setTransform( transform );
} break;
}
// Push Delta.
mInterpController.pushDelta( getTransform() );
}