koobas.hobune.stream
AI sight script not detecting player
So here's the script I'm working with. I've compared it to numerous others and i can't figure out why it's not working in game. I get no errors but the raycasing seems to not be properly targeting the player. there is also a way point script attached to the enemy as well so i don't know if that is what is causing the issue.
here's the sight script enter code hereusing UnityEngine; using System.Collections;
public class SightAI : MonoBehaviour
{
public float fieldOfViewAngle = 110.0f; // Number of degrees, centred on forward, for the enemy see.
public bool playerInSight; // Whether or not the player is currently sighted.
public Vector3 personalLastSighting; // Last place this enemy spotted the player.
private NavMeshAgent nav; // Reference to the NavMeshAgent component.
private SphereCollider col; // Reference to the sphere collider trigger component.
private Animator anim; // Reference to the Animator.
private LastPlayerSighting lastPlayerSighting; // Reference to last global sighting of the player.
private GameObject player; // Reference to the player.
private Animator playerAnim; // Reference to the player's animator component.
private HashIDs hash; // Reference to the HashIDs.
private Vector3 previousSighting; // Where the player was sighted last frame.
void Awake ()
{
// Setting up the references.
nav = GetComponent<NavMeshAgent>();
col = GetComponent<SphereCollider>();
anim = GetComponent<Animator>();
lastPlayerSighting = GameObject.FindGameObjectWithTag(Tags.gameController).GetComponent<LastPlayerSighting>();
player = GameObject.FindGameObjectWithTag(Tags.player);
playerAnim = player.GetComponent<Animator>();
hash = GameObject.FindGameObjectWithTag(Tags.gameController).GetComponent<HashIDs>();
// Set the personal sighting and the previous sighting to the reset position.
personalLastSighting = lastPlayerSighting.resetPosition;
previousSighting = lastPlayerSighting.resetPosition;
}
void Update ()
{
// If the last global sighting of the player has changed...
if(lastPlayerSighting.position != previousSighting)
// ... then update the personal sighting to be the same as the global sighting.
personalLastSighting = lastPlayerSighting.position;
// Set the previous sighting to the be the sighting from this frame.
previousSighting = lastPlayerSighting.position;
/* // If the player is alive...
if(playerHealth.health > 0f)
// ... set the animator parameter to whether the player is in sight or not.
anim.SetBool(hash.playerInSightBool, playerInSight);
else
// ... set the animator parameter to false.
anim.SetBool(hash.playerInSightBool, false);
*/
}
void OnTriggerStay (Collider other)
{
// If the player has entered the trigger sphere...
if(other.gameObject == player)
{
playerInSight = true;
// Create a vector from the enemy to the player and store the angle between it and forward.
Vector3 direction = other.transform.position - transform.position;
float angle = Vector3.Angle(direction, transform.forward);
Debug.DrawRay(transform.position + transform.up / 2, direction, Color.green);
// If the angle between forward and where the player is, is less than half the angle of view...
if(angle < fieldOfViewAngle)
{
RaycastHit hit;
// ... and if a raycast towards the player hits something...
if(Physics.Raycast(transform.position + transform.up, direction.normalized, out hit, col.radius))
{
// ... and if the raycast hits the player...
if(hit.collider.gameObject == player)
{
// ... the player is in sight.
playerInSight = true;
// Set the last global sighting is the players current position.
lastPlayerSighting.position = player.transform.position;
}
}
}
}
// Store the name hashes of the current states.
int playerLayerZeroStateHash = playerAnim.GetCurrentAnimatorStateInfo(0).nameHash;
int playerLayerOneStateHash = playerAnim.GetCurrentAnimatorStateInfo(1).nameHash;
//If the player is running or is attracting attention...
if(playerLayerZeroStateHash == hash.locomotionState || playerLayerOneStateHash == hash.shoutState)
{
// ... and if the player is within hearing range...
if(CalculatePathLength(player.transform.position) <= col.radius)
{
// ... set the last personal sighting of the player to the player's current position.
personalLastSighting = player.transform.position;
}
}
}
void OnTriggerExit (Collider other)
{
// If the player leaves the trigger zone...
if(other.gameObject == player)
// ... the player is not in sight.
playerInSight = false;
}
float CalculatePathLength (Vector3 targetPosition)
{
// Create a path and set it based on a target position.
NavMeshPath path = new NavMeshPath();
if(nav.enabled)
nav.CalculatePath(targetPosition, path);
// Create an array of points which is the length of the number of corners in the path + 2.
Vector3 [] allWayPoints = new Vector3[path.corners.Length + 2];
// The first point is the enemy's position.
allWayPoints[0] = transform.position;
// The last point is the target position.
allWayPoints[allWayPoints.Length - 1] = targetPosition;
// The points inbetween are the corners of the path.
for(int i = 0; i < path.corners.Length; i++)
{
allWayPoints[i + 1] = path.corners[i];
}
// Create a float to store the path length that is by default 0.
float pathLength = 0f;
// Increment the path length by an amount equal to the distance between each waypoint and the next.
for(int i = 0; i < allWayPoints.Length - 1; i++)
{
pathLength += Vector3.Distance(allWayPoints[i], allWayPoints[i + 1]);
}
return pathLength;
}
}
here's the waypoint script
using UnityEngine;
using System.Collections;
public class MovementAI_Bob : MonoBehaviour
{
public float patrolSpeed = 2f; // The nav mesh agent's speed when patrolling.
public float chaseSpeed = 5f; // The nav mesh agent's speed when chasing.
public float chaseWaitTime = 5f; // The amount of time to wait when the last sighting is reached.
public float patrolWaitTime = 1f; // The amount of time to wait when the patrol way point is reached.
public Transform[] patrolWayPoints; // An array of transforms for the patrol route.
public float timer = 0f;
public float wayPointNum = 1f;
private SightAI enemySight; // Reference to the EnemySight script.
private NavMeshAgent nav; // Reference to the nav mesh agent.
private Transform player; // Reference to the player's transform.
private LastPlayerSighting lastPlayerSighting; // Reference to the last global sighting of the player.
private float chaseTimer; // A timer for the chaseWaitTime.
private float patrolTimer; // A timer for the patrolWaitTime.
private int wayPointIndex; // A counter for the way point array.
private int rotateTimer;
private void RotateCounterClockWise()
{
transform.Rotate (Vector3.down * Time.deltaTime * 30);
}
void Awake ()
{
// Setting up the references.
enemySight = GetComponent<SightAI>();
nav = GetComponent<NavMeshAgent>();
player = GameObject.FindGameObjectWithTag(Tags.player).transform;
lastPlayerSighting = GameObject.FindGameObjectWithTag(Tags.gameController).GetComponent<LastPlayerSighting>();
}
void Update ()
{
// If the player is in sight and is alive...
wayPointNum = wayPointIndex;
if (wayPointIndex == 0)
{
rotateTimer = 0;
timer = 0;
}
if (wayPointIndex == 2 || wayPointIndex == 16)
{
nav.Stop();
rotateTimer = 0;
rotateTimer++;
timer++;
if (timer <= 600)
RotateCounterClockWise();
else
{
Patrolling();
}
}
// If the player has been sighted and isn't dead...
if(enemySight.personalLastSighting != lastPlayerSighting.resetPosition)
// ... chase.
Chasing();
// Otherwise...
else
// ... patrol.
Patrolling();
}
// void Shooting ()
// {
// // Stop the enemy where it is.
// nav.Stop();
// }
void Chasing ()
{
// Create a vector from the enemy to the last sighting of the player.
Vector3 sightingDeltaPos = enemySight.personalLastSighting - transform.position;
// If the the last personal sighting of the player is not close...
if(sightingDeltaPos.sqrMagnitude > 4f)
// ... set the destination for the NavMeshAgent to the last personal sighting of the player.
nav.destination = enemySight.personalLastSighting;
// Set the appropriate speed for the NavMeshAgent.
nav.speed = chaseSpeed;
// If near the last personal sighting...
if(nav.remainingDistance < nav.stoppingDistance)
{
// ... increment the timer.
chaseTimer += Time.deltaTime;
// If the timer exceeds the wait time...
if(chaseTimer >= chaseWaitTime)
{
// ... reset last global sighting, the last personal sighting and the timer.
lastPlayerSighting.position = lastPlayerSighting.resetPosition;
enemySight.personalLastSighting = lastPlayerSighting.resetPosition;
chaseTimer = 0f;
}
}
else
// If not near the last sighting personal sighting of the player, reset the timer.
chaseTimer = 0f;
}
void Patrolling ()
{
// Set an appropriate speed for the NavMeshAgent.
nav.speed = patrolSpeed;
// If near the next waypoint or there is no destination...
if(nav.destination == lastPlayerSighting.resetPosition || nav.remainingDistance < nav.stoppingDistance)
{
// ... increment the timer.
patrolTimer += Time.deltaTime;
// If the timer exceeds the wait time...
if(patrolTimer >= patrolWaitTime)
{
// ... increment the wayPointIndex.
if(wayPointIndex == patrolWayPoints.Length - 1)
wayPointIndex = 0;
else
wayPointIndex++;
// Reset the timer.
patrolTimer = 0;
}
}
else
// If not near a destination, reset the timer.
patrolTimer = 0;
// Set the destination to the patrolWayPoint.
nav.destination = patrolWayPoints[wayPointIndex].position;
}
}
