Point Spawning Script Help

Unity Engine
1

Hello!

I am fairly new to programming and was looking for some help with my spawning script. Right now this script spawns my “points” in a random range in the designated area, which is exactly what I want it to do. My problem comes when the point spawns in of the GameObjects on the level. I understand the logic of what I want to happen but all my attempts have failed.

What I want is some form of “point spawn check” that checks a spot, if it’s touching an object with a tag or layer “obstacle,” do not spawn and pick a new spot. I have an empty game object that moves around the scene and determines where the point will spawn. My “Generator” script is attached to this object.

I want to use the “Physics.OverlapSphere” and attach a physics sphere on the game object with the Generator script, set the obstacles in the level to a specific layer and have it check for this layer before spawning.

When you look at the script you can see I sorta tried to figure it out the the “groundCheck and whatIsGround” stuff but I couldn’t get it to work.

Ill post my script below if you need more info or scripts please tell me, any help would be greatly appreciated!

public class Generator : MonoBehaviour
{
   
    public Transform pointDrop;
    public int numToSpawn;
    public Vector3 position;
   
    public bool pointSpawned = false;
   
    public float pointTime = 5.0f;
   
     bool goodSpot = false;
     bool badSpot = false;
   
    public bool waiting = false;
   
     bool grounded = false;
    public Transform groundCheck;
    float groundRadius = 5f;
    public LayerMask whatIsGround;
   
   
   
    void SpawnPoint()
    {
        pointSpawned = true;
        Instantiate(pointDrop, position, pointDrop.transform.rotation);
    }
   
   
    public void Hit()
    {
        StartCoroutine(Wait(2f));
        waiting = true;
    }
   
    public void Miss()
    {
        pointSpawned = false;
    }
   
   
    IEnumerator Wait(float waitTime)
    {
        yield return new WaitForSeconds(waitTime);
       
        //Debug.Log("Wait is finished");
        waiting = false;
        pointSpawned = false;
       
        StopCoroutine(Wait(waitTime));
    }
   
   
    void FixedUpdate()
    {
        groundCheck = transform.Find("GroundCheck");
        grounded = Physics2D.OverlapCircle(groundCheck.position,groundRadius,whatIsGround);
       
    }
   
    void Update()
    {
        int spawned = 0;
       
       
        if(pointSpawned == false)
        {
            if(grounded)
            {
                goodSpot = true;
                badSpot = false;
            }
        }
           
        if(!grounded)
        {
            badSpot = true;
            goodSpot = false;
            //pointSpawned = false;
        }
       
       
        if(pointSpawned == false)
        {
            position = new Vector3(Random.Range(-7.25f, 8.9f), -.3f, Random.Range(5.66f, -3.1f));
           
            transform.position = position;
           
           
                if(!gameObject.CompareTag("obstacle"))
                {
                    spawned++;
                    SpawnPoint();
                   
                }
               
                //if(badSpot == true)
                //{
                //    ResetTimer();
                //    pointSpawned = false;
                //}
        }
       
   
       
        /*
        //Good code
        pointTime -= Time.deltaTime;
       
        if(pointTime <= 0.0f)
        {
            pointSpawned = false;
            ResetTimer();
        }
        */
    }
   
   
    void ResetTimer()
    {
        pointTime = 5.0f;
    }
}
2

2d or 3d game?

3

its a 3D game

4

you could use

on line 91 with position of the point and a layermask of obstacles?

doesn’t need anything added to the gameobject, just needs to be given a float for the radius

5

After playing around with it I got it to work thanks to you! If anyone is wondering how I did I threw the code provided above into a FixedUpdate added a LayerMask and put the script on my spawning object. Then I assigned the layers of what I didnt want it to spawn on. If it spawns on that layer I sent a message to my “Generator” script (seen above) to tell it to spawn a new point. This is what it looks like:

public float sphereRadius;
public LayerMask whatIsObstacle;


void FixedUpdate()
    {
       
        if(Physics.CheckSphere(transform.position, sphereRadius,whatIsObstacle))
        {
            Debug.Log("SPHERE COLLIDED!");
            _Generator.ResetPoint();
            Destroy(this.gameObject);
        }
       
    }