[C#] Script problem

Hi,
I work on a personal project and i'm facing to some dificulty.
I've, in this game, some AI who look for enemy. They got a FOV made with Raycast. The player MeshRenderer was desactivate since they aren't in the AI FOV. For this, I use that script in this order :

Code (csharp):

1. using UnityEngine;
2. using System.Collections;
3.  
4. public class Control : MonoBehaviour {
5.    
6.    void Update () {
7.      foreach (GameObject b in GameObject.FindGameObjectsWithTag ("Runner")) {
8.        b.GetComponent<SeePlayer>().isSee = false;
9.      }
10.    }
11. }

Code (csharp):

1. using UnityEngine;
2. using System.Collections;
3. using System.Collections.Generic;
4.  
5. public class IA : MonoBehaviour
6. {  
7.    public float angle = 75f; // Angle d'ouverture, degré
8.    public float distance = 10f;
9.    public int precision = 20; // Nombre de rayons lancé dans l'angle ci dessus
10.    public Material material; // Mat appliqué au mesh de vue
11.    public bool debug = false; // Dessine les rayons dans la scene view
12.    public float freq = 0.05F; // Fréquence de calcul. > 0.05F ça devient moche
13.    public LayerMask mask; // Layers qui vont bloquer la vue
14.    
15.    Vector3[] directions; // va contenir les rayons, déterminés par precision, distance et angle
16.    Mesh sightMesh; // Le mesh dont les vertex seront modifiés selons les obstacles
17.    Transform m_Transform;
18.    
19.    int nbPoints;
20.    int nbTriangle;
21.    int nbFace;
22.    int nbIndice;
23.    int row;
24.    Vector3[] points;
25.    int[] indices;
26.  
27.    public float speed = 0.1f;
28.    public List<Vector3> destination = new List<Vector3>(){new Vector3(3,0.73f,10)};
29.    int i = 0;
30.    GameObject target = null;
31.    bool getTarget = false;
32.    NavMeshAgent agent;
33.    
34.    // Use this for initialization
35.    void Start ()
36.    {
37.      destination.Add (this.transform.position);
38.      agent = this.gameObject.GetComponent<NavMeshAgent> ();
39.      // Initialisation du cone
40.      GameObject sightObject = new GameObject( "ConeSight" );
41.      sightMesh = new Mesh();
42.      (sightObject.AddComponent( typeof( MeshFilter )) as MeshFilter).mesh = sightMesh;
43.      (sightObject.AddComponent( typeof( MeshRenderer )) as MeshRenderer).material = material;
44.      m_Transform = transform; // histoire de limiter les getcomponent dans la boucle
45.      
46.      // Préparation des rayons
47.      precision = precision > 1 ? precision : 2;
48.      directions = new Vector3[precision];
49.      float angle_start = -angle*0.5F;
50.      float angle_step = angle / (precision-1);
51.      for( int i = 0; i < precision; i++ )
52.      {
53.        Matrix4x4 mat = Matrix4x4.TRS( Vector3.zero, Quaternion.Euler(0,angle_start + i*angle_step,0), Vector3.one );
54.        directions[i] = mat * Vector3.forward;
55.      }
56.      
57.      // préparations des outils de manipulation du mesh
58.      nbPoints =  precision*2;
59.      nbTriangle = nbPoints - 2;
60.      nbFace = nbTriangle / 2;
61.      nbIndice =  nbTriangle * 3;
62.      row = nbFace+1;
63.      
64.      points = new Vector3[nbPoints];
65.      indices = new int[ nbIndice ];
66.      
67.      for( int i = 0; i < nbFace; i++ )
68.      {
69.        indices[i*6+0] = i+0;
70.        indices[i*6+1] = i+1;
71.        indices[i*6+2] = i+row;
72.        indices[i*6+3] = i+1;
73.        indices[i*6+4] = i+row+1;
74.        indices[i*6+5] = i+row;
75.      }
76.      
77.      sightMesh.vertices = new Vector3[nbPoints];
78.      sightMesh.uv = new Vector2[nbPoints];
79.      sightMesh.triangles = indices;  
80.      
81.      StartCoroutine( "Scan" );
82.    }
83.    
84.    // Appelle la modification du mesh tous les freq secondes
85.    IEnumerator Scan()
86.    {
87.      while (true) {
88.        UpdateSightMesh ();
89.        yield return new WaitForSeconds (freq);
90.      }
91.  
92.    }
93.  
94.    void Update(){
95.      this.gameObject.GetComponent<Rigidbody> ().velocity = new Vector3 (speed, speed, speed);
96.      if (getTarget) {
97.        agent.SetDestination(target.transform.position);
98.      } else {
99.        if (Vector3.Distance(this.gameObject.transform.position, destination[i]) < 0.5f){
100.          i = (i+1)% destination.Count;
101.        }else{
102.          agent.SetDestination(destination[i]);
103.        }
104.      }
105.    }
106.  
107.    // Fonction qui modifie le mesh
108.    private void UpdateSightMesh()
109.    {  
110.      GameObject bestTarget = null;
111.      float bestRange = 0;
112.      // Lance les rayons pour placer les vertices le plus loin possible
113.      for (int i = 0; i < precision; i++) {
114.        Vector3 dir = m_Transform.TransformDirection (directions [i]); // repere objet
115.        RaycastHit hit;
116.        float dist = distance;
117.        if (Physics.Raycast (m_Transform.position, dir, out hit, distance, mask)) { // Si on touche, on rétrécit le rayon
118.          dist = hit.distance;
119.          if (hit.transform.CompareTag ("Runner")){
120.            if (hit.distance > bestRange)
121.              bestTarget = hit.transform.gameObject;
122.            hit.transform.gameObject.GetComponent<SeePlayer>().isSee = true;
123.            Debug.Log("42");
124.          }
125.        }
126.        if (debug)
127.          Debug.DrawRay (m_Transform.position, dir * dist);
128.      
129.        // Positionnement du vertex
130.        points [i] = m_Transform.position + dir * dist;
131.        points [i + precision] = m_Transform.position;
132.  
133.        if (bestTarget != null) {
134.          getTarget = true;
135.          target = bestTarget;
136.        } else {
137.          getTarget = false;
138.          target = null;
139.        }
140.      }
141.      // On réaffecte les vertices
142.      sightMesh.vertices = points;  
143.      sightMesh.RecalculateNormals (); // normales doivent être calculé pour tout changement
144.      // du tableau vertices, même si on travaille sur un plan
145.    }
146.  
147.    void OnTriggerEnter(Collider other){
148.      if (other.CompareTag("Runner")){
149.        Destroy (other.gameObject);
150.      }
151.    }
152.    
153. }

Code (csharp):

1. using UnityEngine;
2. using System.Collections;
3.  
4. public class SeePlayer : MonoBehaviour {
5.  
6.    public bool isSee = false;
7.    public MeshRenderer mesh;
8.  
9.    void Update () {
10.   mesh.enabled = isSee;
11.    }
12. }

There script was respictively attach to an object, the IA and the ennemie.
But, when an ennemy was in the AI FOV, the mesh doesn't activate. I've try to disable the first script, and then when a ennemy enter into the FOV, the become visible and doesn't desactivate, what's normaly suppose to do.
If you can help me...

Thank to suport my bad english, sorry i'm french!

 

In your control script, to each frame, find each object tagged runner then get its component, seems such a waste of memory. You should learn to pool and cache.

I am not sure why your FOV is not working as you would like. However, for an FOV, I would just use a trigger. On enter of required object, I would perform required task.

Your approach seems very bloated.

 

Thanks for you're quick answer.
I'm a beginner, i will try to optimize this.

And I've choose this approach because, with this, I got a graphical aspect of the FOV.