Particle System Follow Raycast

I have a cube with a raycast that reflects off other objects. I also have a particle system shooting a beam attached to the same cube. How can I apply the same physics to particles?

Code (CSharp):

1. private void Reflect(Vector3 position, Vector3 direction, int reflectionsRemaining)
2.     {
3.         if (reflectionsRemaining == 0)
4.         {
5.             return;
6.         }
7.  
8.         Vector3 startingPosition = position;
9.  
10.         Ray ray = new Ray(position, direction);
11.         RaycastHit hit;
12.         if (Physics.Raycast(ray, out hit, maxStepDistance))
13.         {
14.             direction = Vector3.Reflect(direction, hit.normal);
15.             position = hit.point;
16.         }
17.         else
18.         {
19.             position += direction * maxStepDistance;
20.         }
21.  
22.         Gizmos.color = Color.yellow;
23.         Gizmos.DrawLine(startingPosition, position);
24.  
25.         Reflect(position, direction, reflectionsRemaining - 1);
26.     }

 

Ok, so I was able to figure out how to render a line following the Raycast and I'll deal with particles later. I also went away from using a recursive function and stuck everything in a For Loop. My only issue now is when I set the positions of the line with the vector array, it wipes out the initial starting positition. How can I store this starting point for the line?

Code (CSharp):

1. private void Reflect(Vector3 position, Vector3 direction, int reflectionsRemaining)
2.     {
3.         Vector3 startingPosition = position;
4.         Vector3[] points = new Vector3[maxReflectionCount];
5.  
6.         line.SetPosition(0, startingPosition);
7.  
8.         for (int i = 0; i < maxReflectionCount; i++)
9.         {
10.             Ray ray = new Ray(position, direction);
11.             RaycastHit hit;
12.  
13.             if (Physics.Raycast(ray, out hit, maxStepDistance))
14.             {
15.                 direction = Vector3.Reflect(direction, hit.normal);
16.                 position = hit.point;
17.             }
18.             else
19.             {
20.                 position += direction * maxStepDistance;
21.             }
22.  
23.             points[i] = position;
24.         }
25.  
26.         line.SetPositions(points);
27.  
28.     }

 

You could make 'points' one larger, make the 0th entry the starting point, and then start your for loop at i=1 instead and end at maxReflectionCount + 1.

 

That worked! Thank you.