koobas.hobune.stream
Enemy AI help
I have a script for Enemy AI that works good but there are parts that is missing. The script has "when player is in front of enemy run and attack" this is great. But I need the enemy to have a maximum range from where he can see me. As if I go in to his collider trigger he will follow me and if I run out he will stop and go back to his waypoints. There is something called follow nodes in the script but it does not work. Please if someone could help me with getting the enemy to have min/max range for follow/stop follow and waypoints It would be great.
//THE CHARACTER COLLISION LAYER FOR TARGETS
public Transform AICharacter;
public int CharacterCollisionLayer=15;
//ENABLES MELEE COMBAT
public bool EnableCombat=true;
//THE TARGET WHICH HE FOLLOWS AND ATTACKS
public Transform Target;
//THE VECTOR OF THE TARGET
private Vector3 CurrentTarget;
//TARGET VISIBIL BOOL
private bool TargetVisible;
private bool MoveToTarget;
//SPEED WHICH THE AI TURNS
public float turnspeed=5;
//SPEED WHICH AI RUNS
public float runspeed=4;
public int Damage=20;
public float AttackSpeed=1;
public float AttackRange=5;
//WHEN THE DAMAGE HAS BEEN DEALT
private bool damdealt;
//ANIMATIONS
public AnimationClip RunAnimation;
public AnimationClip IdleAnimation;
public AnimationClip AttackAnimation;
public AnimationClip DeathAnimation;
private bool stop;
private bool Swing;
public bool IsDead;
private bool DeadPlayed;
private float Atimer;
private bool startfollow;
//PATHFINDING STUFF
public bool EnableFollowNodePathFinding;
public bool DebugShowPath;
public float DistanceNodeChange=1.5f;
public List<Vector3> Follownodes;
private int curf;
// Use this for initialization
void Start () {
if(AICharacter){}
else AICharacter=transform;
}
// Update is called once per frame
void Update () {
if(IsDead){
if(DeathAnimation){
if(DeadPlayed){}
else AICharacter.animation.CrossFade( DeathAnimation.name, 0.1f);
DeadPlayed=true;
}
}
else{
//COMBAT BEHAVE
if(Target){
float Tdist=Vector3.Distance(Target.position, transform.position);
if(Tdist<=AttackRange){
if(TargetVisible)stop=true;
}
else stop=false;
//RAYCAST VISION SYSTEM
RaycastHit hit = new RaycastHit();
LayerMask lay=CharacterCollisionLayer;
Vector3 pdir = (Target.transform.position - transform.position).normalized;
float playerdirection = Vector3.Dot(pdir, transform.forward);
if(Physics.Linecast(transform.position, Target.position, out hit, lay)){
TargetVisible=false;
}
else{
if(playerdirection > 0){
startfollow=true;
TargetVisible=true;
}
//TargetVisible=false;
}
}
//IF THE TARGET IS VISIBLE
if(TargetVisible){
CurrentTarget=Target.position;
MoveToTarget=true;
}
//MOVES/RUNS TO TARGET
if(MoveToTarget){
if(stop){}
else{
transform.position += transform.forward * +runspeed * Time.deltaTime;
}
if(RunAnimation){
if(stop){
//COMBAT!
if(EnableCombat){
Health hp=(Health)Target.transform.GetComponent("Health");
if(hp.CurHealth>0){
Atimer+=Time.deltaTime;
AICharacter.animation[AttackAnimation.name].speed = AICharacter.animation[AttackAnimation.name].length / AttackSpeed;
AICharacter.animation.CrossFade( AttackAnimation.name, 0.1f);
if(damdealt){}
else{
if(Atimer>=AttackSpeed*0.35&Atimer<=AttackSpeed*0.45){
//LETS DO SOME DAMAGE!
if(hp){
hp.CurHealth=hp.CurHealth-Damage;
damdealt=true;
}
}
}
if(Atimer>=AttackSpeed){
damdealt=false;
Atimer=0;
}
}
else AICharacter.animation.CrossFade( IdleAnimation.name, 0.12f);
}
else AICharacter.animation.CrossFade( IdleAnimation.name, 0.12f);
}
else{
Atimer=0;
AICharacter.animation.CrossFade( RunAnimation.name, 0.12f);
}
}
}
else{
if(IdleAnimation){
AICharacter.animation.CrossFade( IdleAnimation.name, 0.12f);
}
}
//FOLLOW PATHFINDING
if(TargetVisible){}
else{
if(EnableFollowNodePathFinding&startfollow){
if(Follownodes.Count<=0)Follownodes.Add(CurrentTarget);
RaycastHit hit = new RaycastHit();
LayerMask lay=CharacterCollisionLayer;
if(Physics.Linecast(Follownodes[Follownodes.Count-1], Target.position, out hit, lay)){
Follownodes.Add(Target.position);
}
float dist=Vector3.Distance(transform.position, Follownodes[0]);
if(dist<DistanceNodeChange){
Follownodes.Remove(Follownodes[0]);
}
}
}
}
if(TargetVisible&Follownodes.Count>0){
Follownodes.Clear();
}
if(DebugShowPath){
if(Follownodes.Count>0){
int listsize=Follownodes.Count;
Debug.DrawLine(Follownodes[0], transform.position, Color.green);
for (int i = 0; i < listsize; i++)
if(i<Follownodes.Count-1){
{
Debug.DrawLine(Follownodes[i], Follownodes[i+1], Color.green);
}
}
}
//POINT AT TARGET
if(MoveToTarget){
if(Follownodes.Count>0){
transform.rotation = Quaternion.Slerp(transform.rotation, Quaternion.LookRotation(Follownodes[0] - transform.position), turnspeed * Time.deltaTime);
}
else{
transform.rotation = Quaternion.Slerp(transform.rotation, Quaternion.LookRotation(CurrentTarget - transform.position), turnspeed * Time.deltaTime);
}
}
transform.eulerAngles = new Vector3(0,transform.eulerAngles.y,0);
}
}
}
On line 86 it checks if the target is visible and puts the object to follow it, you must add a new condition:
if (Vector3.Distance (transform.position, Target.position) <= 100f)
"Target Visible"; "Follow Target";
else
"Target is Not Visible", "Unfollow Target"; "Find nearest waypoint"
100f is the maximum distance you can see the target to hunt.
The part where he follows me works perfect. Thanks a lot. How do I do the stoping to follow and how do I add waypoints? If you do know please
Your code only has the function of searching a target, you must implement the function of waypoint, If you follow what I told you will get a satisfactory result.
After I answered you I was messing around with this part and made it work how I wanted it to. When I leave the area that the enemy can "see" me he starts walking in a circle but else a satisfied result there. I do not know how to script waypoints. I've been looking for a while but can't find a tutorial or unity answers that use C# in specific. Do you perhaps know any?
