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 :
using UnityEngine;
using System.Collections;
public class Control : MonoBehaviour {
void Update () {
foreach (GameObject b in GameObject.FindGameObjectsWithTag ("Runner")) {
b.GetComponent<SeePlayer>().isSee = false;
}
}
}
using UnityEngine;
using System.Collections;
using System.Collections.Generic;
public class IA : MonoBehaviour
{
public float angle = 75f; // Angle d'ouverture, degré
public float distance = 10f;
public int precision = 20; // Nombre de rayons lancé dans l'angle ci dessus
public Material material; // Mat appliqué au mesh de vue
public bool debug = false; // Dessine les rayons dans la scene view
public float freq = 0.05F; // Fréquence de calcul. > 0.05F ça devient moche
public LayerMask mask; // Layers qui vont bloquer la vue
Vector3[] directions; // va contenir les rayons, déterminés par precision, distance et angle
Mesh sightMesh; // Le mesh dont les vertex seront modifiés selons les obstacles
Transform m_Transform;
int nbPoints;
int nbTriangle;
int nbFace;
int nbIndice;
int row;
Vector3[] points;
int[] indices;
public float speed = 0.1f;
public List<Vector3> destination = new List<Vector3>(){new Vector3(3,0.73f,10)};
int i = 0;
GameObject target = null;
bool getTarget = false;
NavMeshAgent agent;
// Use this for initialization
void Start ()
{
destination.Add (this.transform.position);
agent = this.gameObject.GetComponent<NavMeshAgent> ();
// Initialisation du cone
GameObject sightObject = new GameObject( "ConeSight" );
sightMesh = new Mesh();
(sightObject.AddComponent( typeof( MeshFilter )) as MeshFilter).mesh = sightMesh;
(sightObject.AddComponent( typeof( MeshRenderer )) as MeshRenderer).material = material;
m_Transform = transform; // histoire de limiter les getcomponent dans la boucle
// Préparation des rayons
precision = precision > 1 ? precision : 2;
directions = new Vector3[precision];
float angle_start = -angle*0.5F;
float angle_step = angle / (precision-1);
for( int i = 0; i < precision; i++ )
{
Matrix4x4 mat = Matrix4x4.TRS( Vector3.zero, Quaternion.Euler(0,angle_start + i*angle_step,0), Vector3.one );
directions[i] = mat * Vector3.forward;
}
// préparations des outils de manipulation du mesh
nbPoints = precision*2;
nbTriangle = nbPoints - 2;
nbFace = nbTriangle / 2;
nbIndice = nbTriangle * 3;
row = nbFace+1;
points = new Vector3[nbPoints];
indices = new int[ nbIndice ];
for( int i = 0; i < nbFace; i++ )
{
indices[i*6+0] = i+0;
indices[i*6+1] = i+1;
indices[i*6+2] = i+row;
indices[i*6+3] = i+1;
indices[i*6+4] = i+row+1;
indices[i*6+5] = i+row;
}
sightMesh.vertices = new Vector3[nbPoints];
sightMesh.uv = new Vector2[nbPoints];
sightMesh.triangles = indices;
StartCoroutine( "Scan" );
}
// Appelle la modification du mesh tous les freq secondes
IEnumerator Scan()
{
while (true) {
UpdateSightMesh ();
yield return new WaitForSeconds (freq);
}
}
void Update(){
this.gameObject.GetComponent<Rigidbody> ().velocity = new Vector3 (speed, speed, speed);
if (getTarget) {
agent.SetDestination(target.transform.position);
} else {
if (Vector3.Distance(this.gameObject.transform.position, destination[i]) < 0.5f){
i = (i+1)% destination.Count;
}else{
agent.SetDestination(destination[i]);
}
}
}
// Fonction qui modifie le mesh
private void UpdateSightMesh()
{
GameObject bestTarget = null;
float bestRange = 0;
// Lance les rayons pour placer les vertices le plus loin possible
for (int i = 0; i < precision; i++) {
Vector3 dir = m_Transform.TransformDirection (directions [i]); // repere objet
RaycastHit hit;
float dist = distance;
if (Physics.Raycast (m_Transform.position, dir, out hit, distance, mask)) { // Si on touche, on rétrécit le rayon
dist = hit.distance;
if (hit.transform.CompareTag ("Runner")){
if (hit.distance > bestRange)
bestTarget = hit.transform.gameObject;
hit.transform.gameObject.GetComponent<SeePlayer>().isSee = true;
Debug.Log("42");
}
}
if (debug)
Debug.DrawRay (m_Transform.position, dir * dist);
// Positionnement du vertex
points [i] = m_Transform.position + dir * dist;
points [i + precision] = m_Transform.position;
if (bestTarget != null) {
getTarget = true;
target = bestTarget;
} else {
getTarget = false;
target = null;
}
}
// On réaffecte les vertices
sightMesh.vertices = points;
sightMesh.RecalculateNormals (); // normales doivent être calculé pour tout changement
// du tableau vertices, même si on travaille sur un plan
}
void OnTriggerEnter(Collider other){
if (other.CompareTag("Runner")){
Destroy (other.gameObject);
}
}
}
using UnityEngine;
using System.Collections;
public class SeePlayer : MonoBehaviour {
public bool isSee = false;
public MeshRenderer mesh;
void Update () {
mesh.enabled = isSee;
}
}
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!