koobas.hobune.stream
How to stop my ghost AI from teleporting inside a wall
Hello. This is my first time asking a question here, so I hope I'm doing this correctly.
I'm making some enemies for a game that my friends and I are working on and I wanted to make a ghost enemy.
How i want it to work:
A ghost activates when the player comes near it
The ghost takes the players current position, adds a pre-set offset (x,z only) that works as a radius for a circle formed around the player, and chooses a random point on that circles circumference.
The ghost teleports to three random locations, on every location it shoots projectiles for about 0.5-1 sec and then teleports to the next location. After teleporting three times, it waits for about 2-3sec before doing the three teleports again.
What i have so far
So far I can get it to a randomy teleport around the enemy, and delay the next teleportation.
My problem is
I want it to choose a random location, but I don't want the ghost to go inside a wall. I want it to detect if it will end up inside a wall and choose another random number to avoid this.
This is my thinking process:
if(ghost will end up in a wall){
choose another random point on the circumference;
}else if(ghost will NOT end up in a wall){
spawn ghost to that location;
delay for 2 sec;
}
How I tried to solve this, but failed and why
I have tried to solve this with two functions
1: a function that chooses a random number on a circumference, then makes that the location of the ghost.
function Teleporting()
{
while(true)
{
angle = Random.Range(0.0f,Mathf.PI*2);
V = Vector3(Mathf.Sin(angle),0,Mathf.Cos(angle));
V *= 15;
myTransform.position = target.position+V;
}
}
2: Detect if the ghost spawned inside a wall. If yes, choose another number. If no delay for 2 sec.
function OnTriggerEnter(hit:Collider)
{
if(hit.gameObject.CompareTag("test"))
{
//goes back to the while loop
}else{
yield WaitForSeconds(2);
}
}
3: It doesn't work because (I think it creates a infinite loop) the unity crashes.
What i want help with
I just want it to teleport around the player and not go in a wall. If you guys have some ideas how to fix my code or if you have a completely different idea how to do this I would greatly appreciate your help :)
Thank you.
Figured it on my own, though it took me some time haha.
///////////////////////////
// VARIABLES //
///////////////////////////
//*** Soul & Wisp ***
var soul : Transform; //This is used to check if the Wisp will teleport inside a wall
var wisp : Transform; //This is the Wisp enemy
//*** Target ***
var target : Transform; //This is the player
//*** Attributes ***
var angle : float; //This is used for storing the angle information
var v; //This is a vector which stores the converted angle
var nextMoveTime : float;
var inTheWall : boolean = false;
var test : int = 1;
///////////////////////////
// FUNCTIONS //
///////////////////////////
//*** Executed first and only once ***
function Awake(){
target = GameObject.FindWithTag("Player").transform; //All object with the tag "Player" are placed in this variable
}
//*** Executed every "tick"
function Update(){
if(Time.time >= nextMoveTime && inTheWall == false){ //If the soul is not in a wall, the wisp will follow
if(test >= 1){
Rest();
}else{
Teleportation();
}
}else if(inTheWall == true){
FindNewPosition();
}
}
//*** Teleportation ***
function Teleportation(){
nextMoveTime = Time.time + 1;
angle = Random.Range(0.0f,Mathf.PI*2); //A random angle is calculated
v = Vector3(Mathf.Sin(angle),0,Mathf.Cos(angle)); //The angle is converted into a Vector
v *= 15; //The vector is multiplied for a desired radius/Delay the function
soul.position = target.position + v; //The soul is placed on a random point on the circumference
test++;
Debug.Log(test);
Follow();
}
function FindNewPosition(){
angle = Random.Range(0.0f,Mathf.PI*2); //A random angle is calculated
v = Vector3(Mathf.Sin(angle),0,Mathf.Cos(angle)); //The angle is converted into a Vector
v *= 15; //The vector is multiplied for a desired radius/Delay the function
soul.position = target.position + v; //The soul is placed on a random point on the circumference
}
//*** OnTrigger Functions ***
function OnTriggerEnter(hit:Collider){
if(hit.gameObject.CompareTag("wall")){
inTheWall = true;
}
}
function OnTriggerStay(hit:Collider){
if(hit.gameObject.CompareTag("wall")){
inTheWall = true;
}
}
function OnTriggerExit(hit:Collider){
if(hit.gameObject.CompareTag("wall")){
inTheWall = false;
}
}
function Follow(){
yield WaitForSeconds(0.5);
if(inTheWall == false){
wisp.position = soul.position;
}
}
function Rest(){
yield WaitForSeconds(3);
test = 0;
}
