How do I use a spherecast to spawn multiple target images at multiple objects? (script provided)

Question

Hi, how do I make my script spawn multiple target images at multiple objects?

For now the script only targets 1 object at a time, how do I make it so that it targets multiple objects at a time.

    private bool RADSYSB()
     {
 
         RaycastHit hit;
 
         Vector3 sy = ship.transform.position;
 
         if (Physics.SphereCast(sy, range, ship.transform.forward, out hit, 400))
         {
             target = hit.transform;
             distanceF = hit.distance;
             return true;
         }
 
         Debug.DrawRay(ship.transform.position, sy, Color.green);
 
         return false;
 
     }
 
     private void UpdateCrosshair()
     {
         if (crosshair)
         {
             if (target)
             {
                 if (crosshair.gameObject.activeSelf)
                 {
                     crosshair.position = ship_camera.WorldToScreenPoint(target.position);
                 }
             }
         }
     }

Any help is highly appreciated, thanks in advance

Answer 1

Best Answer

Answer by oscarAbraham · Dec 23, 2021 at 04:05 AM

Use SphereCastAll or, better yet, SphereCastNonAlloc, which avoids generating garbage. Here's some code to get you started:

 // We create an array to store the hits that are found.
 // Replace 100 with the maximum amount of objects you realistically expect to find.
 private RaycastHit[] hitResults = new RayCastHit[100]
 private int hitCount = 0;

 private void GetHits()
 {
     Vector3 sy = ship.transform.position;

     hitCount = Physics.SphereCastNonAlloc(sy, range, ship.transform.forward, hitResults, 400);
 }
 
 private void DoSomethingWithTheHitsResults()
 {
     for(int i = 0; i < hitCount; i++)
     {
          RaycastHit hit =  hitResults[i];
          // Do something with the hit here.
     }
 }

I think that should point you in the right direction, but let me know if you have questions.

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How do I use a spherecast to spawn multiple target images at multiple objects? (script provided)

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