// =======================================
void CollectEyesSensorData()
{
// Calculate the eyes ray direction
Vector3 front = this.transform.forward;
float baseAngle = Mathf.Atan2(front.z, front.x);
int index = 0;
// Calculate the base angle and the offset for the three eyes
int sideEyeCount = Mathf.FloorToInt(this.eyeCount / 2f);
float fovPercent = this.fov / sideEyeCount;
for (int i = -sideEyeCount; i <= sideEyeCount; i++)
{
float angle = baseAngle + (fovPercent * i);
Vector3 lookDir = new Vector3(Mathf.Cos(angle), 0, Mathf.Sin(angle));
this.eyes[index] = lookDir;
index++;
}
// Detect what each eye 'sees' and put the data in the sensor
// If nothing is seen, just put 0
Vector3 position = this.transform.position;
foreach (var lookDir in this.eyes)
{
RaycastHit hit;
// Three front eyes
if (Physics.Raycast(position + (lookDir * 0.5f), lookDir, out hit, this.viewDistance))
{
GameObject go = hit.collider.gameObject;
Player sh = go.GetComponent <Player>();
if (sh != null)
{
Debug.DrawLine(position, position + (lookDir * this.viewDistance), Color.green, 0.5f);
this.status = FoeStatus.ATTACK;
this.lastPlayerPosition = sh.transform.position;
this.searchingTime = this.maxSearchingTime;
}
else
{
Debug.DrawLine(position, position + (lookDir * this.viewDistance), Color.white, 0.5f);
}
}
else
{
Debug.DrawLine(position, position + (lookDir * this.viewDistance), Color.black, 0.5f);
}
}
}
// Start is called before the first frame update
void Start()
{
this.agent = GetComponent <NavMeshAgent>();
this.status = FoeStatus.SEARCH;
this.eyes = new Vector3[this.eyeCount];
}
// Update is called once per frame
void Update()
{
this.time += Time.deltaTime;
if (this.searchingTime > 0)
{
this.searchingTime -= Time.deltaTime;
}
if (this.time >= this.timeOut)
{
this.time = 0;
this.CollectEyesSensorData();
switch (this.status)
{
case FoeStatus.SEARCH:
float angle = Random.Range(0f, 360f);
this.transform.rotation = Quaternion.Euler(0, angle, 0);
float distance = Random.Range(1f, 3f);
Vector3 targetPosition = this.transform.position + this.transform.forward * distance;
this.agent.SetDestination(targetPosition);
break;
case FoeStatus.ATTACK:
this.agent.SetDestination(this.lastPlayerPosition);
float distanceToTarget = Vector3.Distance(this.lastPlayerPosition, this.transform.position);
if (distanceToTarget < 0.1f)
{
if (this.searchingTime <= 0)
{
this.status = FoeStatus.SEARCH;
}
}
break;
}
}
}