/** Called during either Update or FixedUpdate depending on if rigidbodies are used for movement or not */
protected override void MovementUpdateInternal (float deltaTime, out Vector3 nextPosition, out Quaternion nextRotation) {
// a = v/t, should probably expose as a variable
float acceleration = maxSpeed / 0.4f;
if (updatePosition) {
// Get our current position. We read from transform.position as few times as possible as it is relatively slow
// (at least compared to a local variable)
simulatedPosition = tr.position;
}
if (updateRotation) simulatedRotation = tr.rotation;
var currentPosition = simulatedPosition;
// Update which point we are moving towards
interpolator.MoveToCircleIntersection2D(currentPosition, pickNextWaypointDist, movementPlane);
var dir = movementPlane.ToPlane(steeringTarget - currentPosition);
// Calculate the distance to the end of the path
float distanceToEnd = dir.magnitude + Mathf.Max(0, interpolator.remainingDistance);
// Check if we have reached the target
var prevTargetReached = reachedEndOfPath;
reachedEndOfPath = distanceToEnd <= endReachedDistance && interpolator.valid;
if (!prevTargetReached && reachedEndOfPath) OnTargetReached();
float slowdown;
// Check if we have a valid path to follow and some other script has not stopped the character
if (interpolator.valid && !isStopped) {
// How fast to move depending on the distance to the destination.
// Move slower as the character gets closer to the destination.
// This is always a value between 0 and 1.
slowdown = distanceToEnd < slowdownDistance ? Mathf.Sqrt(distanceToEnd / slowdownDistance) : 1;
if (reachedEndOfPath && whenCloseToDestination == CloseToDestinationMode.Stop) {
// Slow down as quickly as possible
velocity2D -= Vector2.ClampMagnitude(velocity2D, acceleration * deltaTime);
} else {
velocity2D += MovementUtilities.CalculateAccelerationToReachPoint(dir, dir.normalized*maxSpeed, velocity2D, acceleration, maxSpeed) * deltaTime;
}
} else {
slowdown = 1;
// Slow down as quickly as possible
velocity2D -= Vector2.ClampMagnitude(velocity2D, acceleration * deltaTime);
}
velocity2D = MovementUtilities.ClampVelocity(velocity2D, maxSpeed, slowdown, slowWhenNotFacingTarget, movementPlane.ToPlane(rotationIn2D ? tr.up : tr.forward));
ApplyGravity(deltaTime);
if (rvoController != null && rvoController.enabled) {
// Send a message to the RVOController that we want to move
// with this velocity. In the next simulation step, this
// velocity will be processed and it will be fed back to the
// rvo controller and finally it will be used by this script
// when calling the CalculateMovementDelta method below
// Make sure that we don't move further than to the end point
// of the path. If the RVO simulation FPS is low and we did
// not do this, the agent might overshoot the target a lot.
var rvoTarget = currentPosition + movementPlane.ToWorld(Vector2.ClampMagnitude(velocity2D, distanceToEnd), 0f);
rvoController.SetTarget(rvoTarget, velocity2D.magnitude, maxSpeed);
}
// Set how much the agent wants to move during this frame
var delta2D = lastDeltaPosition = CalculateDeltaToMoveThisFrame(movementPlane.ToPlane(currentPosition), distanceToEnd, deltaTime);
nextPosition = currentPosition + movementPlane.ToWorld(delta2D, verticalVelocity * lastDeltaTime);
CalculateNextRotation(slowdown, out nextRotation);
}
