private void Start()
{
sightState = GetComponent <SightState>();
meshRenderer = GetComponent <MeshRenderer>();
VisualizeState(false);
sightState.SightStateChanged += OnSightStateChanged;
}
private void Update()
{
rayDirections.Clear();
float startingAngle = -sightAngle / 2;
for (int i = 0; i <= sections; ++i)
{
rayDirections.Add(Quaternion.AngleAxis(startingAngle + i * rayAngle, transform.right) * transform.forward);
}
RaycastHit2D hit;
List <SightState> hitObjects = new List <SightState>();
vertices = new List <Vector3>()
{
transform.localPosition
};
foreach (Vector3 direction in rayDirections)
{
float distance = sightRange;
if (hit = Physics2D.Raycast(transform.position, direction, sightRange, 1 << 9))
{
distance = hit.distance;
}
vertices.Add(transform.InverseTransformPoint(transform.position + (direction * distance)));
//Debug.DrawRay(transform.position, direction * distance, Color.yellow, Time.deltaTime);
foreach (RaycastHit2D raycastHit in Physics2D.RaycastAll(transform.position, direction, distance))
{
SightState sightState = raycastHit.collider.gameObject.GetComponent <SightState>();
if (sightState != null)
{
sightState.SetSightState(true);
hitObjects.Add(sightState);
}
}
IEnumerable <SightState> lostSight = objectsInSight.Where(sightState => hitObjects.Contains(sightState) == false);
foreach (SightState sightState in lostSight)
{
sightState.SetSightState(false);
}
objectsInSight = hitObjects;
}
UpdateMesh();
}