public override (GainType, float) ApplyRedirection()
{
Debug.Log("SteerToTargetRedirector");
// define some variables for redirection
realUser = realSpace.GetComponentInChildren <Transform2D>();
userPosition = realUser.Position;
userDirection = realUser.Forward;
// pick a target to where user steer
PickSteeringTarget();
Vector2 userToTarget = targetPosition - userPosition;
float angleToTarget = Vector2.Angle(userDirection, userToTarget);
float distanceToTarget = userToTarget.magnitude;
// control applied gains according to user and target
float directionToTarget = Mathf.Sign(Vector2.SignedAngle(userDirection, userToTarget)); // if target is to the left of the user, directionToTarget > 0
float directionRotation = Mathf.Sign(virtualUser.DeltaRotation); // If user is rotating to the left, directionRotation > 0
if (directionToTarget > 0) // If the target is to the left of the user,
{
curvatureGain = HODGSON_MIN_CURVATURE_GAIN;
}
else
{
curvatureGain = HODGSON_MAX_CURVATURE_GAIN;
}
if (directionToTarget * directionRotation < 0) // if user rotates away from the target (if their direction are opposite),
{
rotationGain = MIN_ROTATION_GAIN;
}
else
{
rotationGain = MAX_ROTATION_GAIN;
}
// select the largest magnitude
float rotationMagnitude = 0, curvatureMagnitude = 0;
if (Mathf.Abs(virtualUser.DeltaRotation) >= ROTATION_THRESHOLD)
{
rotationMagnitude = rotationGain * virtualUser.DeltaRotation;
}
if (virtualUser.DeltaPosition.magnitude > MOVEMENT_THRESHOLD)
{
curvatureMagnitude = Mathf.Rad2Deg * curvatureGain * virtualUser.DeltaPosition.magnitude;
}
float selectedMagnitude = Mathf.Max(Mathf.Abs(rotationMagnitude), Mathf.Abs(curvatureMagnitude)); // selectedMagnitude is ABS(절대값)
bool isCurvatureSelected = Mathf.Abs(curvatureMagnitude) > Mathf.Abs(rotationMagnitude);
// dampening
//if (angleToTarget <= ANGLE_THRESHOLD_FOR_DAMPENING)
// selectedMagnitude *= Mathf.Sin(Mathf.Deg2Rad * 90 * angleToTarget / ANGLE_THRESHOLD_FOR_DAMPENING);
// if (distanceToTarget <= DISTANCE_THRESHOLD_FOR_DAMPENING)
// {
// selectedMagnitude *= distanceToTarget / DISTANCE_THRESHOLD_FOR_DAMPENING;
// }
//smoothing
float finalRotation = (1.0f - SMOOTHING_FACTOR) * previousMagnitude + SMOOTHING_FACTOR * selectedMagnitude;
previousMagnitude = finalRotation;
// apply final redirection
if (!isCurvatureSelected)
{
float direction = directionRotation;
return(GainType.Rotation, finalRotation *direction);
}
else
{
float direction = -Mathf.Sign(curvatureGain);
return(GainType.Curvature, finalRotation *direction);
}
}
