void SphericalCamera::MoveFocusUp(double amount)
{
double focusPos[3];
GetFocusPosition(focusPos);
focusPos[0] += amount * yAxis[0];
focusPos[1] += amount * yAxis[1];
focusPos[2] += amount * yAxis[2];
SetFocusPosition(focusPos);
}
void CharacterCamera::SetCharacter(Character* pCharacter)
{
mCharacter = pCharacter;
Vector3f anchorPos = GetAnchorPosition();
mCurrentAnchorPos = anchorPos;
mPreviousAnchorPos = anchorPos;
mPosition = anchorPos;
LookAt( GetFocusPosition() );
}
//////////////////////////////////////////////////////////////////////////
/// Adjust camera height.
///
/// @param height - The new height.
//////////////////////////////////////////////////////////////////////////
void Camera::AdjustCameraHeight(VCNFloat height)
{
const Vector3& camPos = GetViewerPosition();
const Vector3& camTarget = GetFocusPosition();
const float oldViewerHeight = camPos.y;
SetViewerPosition(Vector3(camPos.x, height, camPos.z));
const float adjustHeight = height - oldViewerHeight;
SetFocusPosition(Vector3(camTarget.x, camTarget.y + adjustHeight, camTarget.z));
}
void CharacterCamera::Update(Double pElapsedTime)
{
// Follow the object if any.
if(mCharacter)
{
mPreviousAnchorPos = mCurrentAnchorPos;
mCurrentAnchorPos = GetAnchorPosition();
mPosition = SpringDamp(mPosition, mCurrentAnchorPos, mPreviousAnchorPos,
pElapsedTime, mSpringForce, 0.25f, 1.0f);
LookAt( GetFocusPosition() );
}
}
Vector3f CharacterCamera::GetAnchorPosition() const
{
return GetFocusPosition() - mCharacter->GetViewDirection() * mFollowDistance;
}