void UpdateDestination(Vector3 destination)
{
Vector3 delta = MoveDestination - destination;
if (delta.Length() > 0.01f) // Only recalculate path when the target position is different
{
// Generate a new path using the navigation component
pathToDestination.Clear();
if (Navigation.TryFindPath(destination, pathToDestination))
{
// Skip the points that are too close to the enemy
WaypointIndex = 0;
while (!ReachedDestination && (CurrentWaypoint - Entity.Transform.WorldMatrix.TranslationVector).Length() < 0.25f)
{
WaypointIndex++;
}
// If this path still contains more points, set the enemy to running
if (!ReachedDestination)
{
IsRunning = true;
MoveDestination = destination;
}
}
else
{
// Could not find a path to the target location
pathToDestination.Clear();
HaltMovement();
}
}
}
private void UpdateDestination(Vector3 destination)
{
Vector3 delta = moveDestination - destination;
if (delta.Length() > 0.01f) // Only recalculate path when the target position is different
{
pathToDestination.Clear();
if (navigation.TryFindPath(destination, pathToDestination))
{
// Skip the points that are too close to the player
waypointIndex = 0;
while (!ReachedDestination && (CurrentWaypoint - Entity.Transform.WorldMatrix.TranslationVector).Length() < 0.25f)
{
waypointIndex++;
}
if (!ReachedDestination)
{
isRunning = true;
moveDestination = destination;
}
}
else
{
// Could not find a path to the target location
pathToDestination.Clear();
HaltMovement();
}
}
}
/// <summary>
/// Tries to move towards the target position using the attached NavigationComponent asynchronously
/// </summary>
/// <param name="targetPosition"></param>
/// <returns></returns>
protected IEnumerator <Vector3> Move(Vector3 targetPosition)
{
NavigationComponent navigationComponent = Entity.Get <NavigationComponent>();
List <Vector3> pathPoints = new List <Vector3>();
if (navigationComponent == null || navigationComponent.NavigationMesh == null)
{
pathPoints = new List <Vector3> {
Entity.Transform.WorldMatrix.TranslationVector, targetPosition
};
}
else
{
if (!navigationComponent.TryFindPath(targetPosition, pathPoints))
{
yield break;
}
}
Path navigationPath = new Path(pathPoints.ToArray());
Waypoint nextWaypoint = navigationPath.Waypoints[0];
while (nextWaypoint != null)
{
Vector3 targetSpeed = Vector3.Zero;
if (!Drone.Stunned)
{
// Move towards target when having a waypoint
Vector3 dir = nextWaypoint.Position - Entity.Transform.WorldMatrix.TranslationVector;
dir.Y = 0;
var dist = dir.Length();
if (dist < MoveThreshold)
{
nextWaypoint = nextWaypoint.Next;
continue;
}
dir.Normalize();
Drone.UpdateBodyRotation(dir);
targetSpeed = dir * Drone.MaximumSpeed;
float dt = (float)Game.UpdateTime.Elapsed.TotalSeconds;
var estimatedDist = targetSpeed.Length() * dt;
if (estimatedDist > dist)
{
targetSpeed = dir * (dist / dt);
}
}
Drone.SetMovement(targetSpeed);
yield return(nextWaypoint.Position);
}
// Stop when done moving
Drone.SetMovement(Vector3.Zero);
}