// Use this for initialization
void Start()
{
var allWaypoints = GameObject.FindGameObjectsWithTag("Waypoints");
var closestDist = Mathf.Infinity;
if (allWaypoints.Length == 0)
{
Debug.LogError("Couldn't find any waypoints!");
}
foreach (var waypoint in allWaypoints)
{
var distance = Vector2.Distance(this.transform.position, waypoint.transform.position);
if (distance < closestDist)
{
closestDist = distance;
_waypoint = waypoint;
}
_sdn = GameObject.FindObjectOfType <SDN> ();
if (_sdn == null)
{
throw new UnassignedReferenceException("Couldn't find the SDN object!");
}
}
// Add to vehicle list
_sdn.addToVehicleList(this);
Debug.Assert(_waypoint != null, "Unable to find any waypoints on initialize!");
status = Status.Go;
currSpeed = vehicle.Speed;
stoplight = null;
showSearchRadius = false;
radiusRenderer = GetComponent <CircleRenderer>();
radiusRenderer.enabled = true;
if (showSearchRadius)
{
radiusRenderer.lineWidth = 0.5f;
radiusRenderer.radius = searchRadius;
}
else
{
radiusRenderer.lineWidth = 0f;
}
radiusRenderer.DoRenderer();
}
// Update is called once per frame
void Update()
{
// Update radius
if (showSearchRadius)
{
radiusRenderer.lineWidth = 0.5f;
radiusRenderer.radius = searchRadius;
}
else
{
radiusRenderer.lineWidth = 0f;
}
radiusRenderer.DoRenderer();
if (targetWaypoint == null)
{
targetWaypoint = GetNextWaypoint(waypointIndex);
if (targetWaypoint == null)
{
Debug.Log("Hit the last waypoint. Despawning car.");
_sdn.removeFromVehicleList(this);
Destroy(gameObject);
return;
}
targetWaypoint.IsOccupied = true;
}
Vector2 dir = targetWaypoint.transform.position - this.transform.localPosition;
float distThisFrame;
if (status == Status.Go)
{
//if we're close to our max speed (or greater than it), just snap to it
if (currSpeed >= vehicle.Speed - 0.05f)
{
currSpeed = vehicle.Speed;
}
else
{
currSpeed += vehicle.Acceleration;
}
distThisFrame = currSpeed * Time.deltaTime;
if (dir.magnitude <= distThisFrame)
{
// waypoint HIT
var nextWaypoint = GetNextWaypoint(waypointIndex + 1);
//if we're at the last waypoint, or if there is a next waypoint and it's not occupied,
//then we want to start moving to the next waypoint. Otherwise just wait here.
if (nextWaypoint == null || nextWaypoint.IsOccupied == false)
{
//free up this waypoint for others to occupy
targetWaypoint.IsOccupied = false;
targetWaypoint = null;
waypointIndex++;
//Debug.Log("Hit the waypoint. Gotta get next one.");
}
else if (nextWaypoint.IsOccupied == true)
{
//just wait for it to be unoccupied
currSpeed = 0f;
//Debug.Log("Hit the waypoint, but next waypoint is occupied so we're waiting.");
}
updateStatus();
}
}
else if (dir.magnitude <= 0.1)
{
currSpeed = 0f;
}
else if (dir.magnitude > 1.7f)
{
//go full speed if we've got some ways before the stoplight
//if we're close to our max speed (or greater than it), just snap to it
if (currSpeed >= vehicle.Speed - 0.05f)
{
currSpeed = vehicle.Speed;
}
else
{
currSpeed += vehicle.Acceleration;
}
}
else if (status == Status.Slow)
{
if (currSpeed > 0.6f)
{
currSpeed *= 0.95f;
}
else
{
currSpeed = 0.6f;
}
}
else if (status == Status.Stop)
{
if (currSpeed > 0.6f)
{
currSpeed *= 0.98f;
}
else
{
currSpeed = 0.6f;
}
}
distThisFrame = currSpeed * Time.deltaTime;
transform.Translate(dir.normalized * distThisFrame, Space.World);
//turn if we need to turn
this.transform.rotation = Quaternion.LookRotation(dir, new Vector3(0, 0, -1).normalized);
this.transform.Rotate(new Vector3(-90, 0));
updateStatus();
}
