Help Counting Fluid & Android Export

[Tuna.Y]

Works for me. Make sure you're indexing the correct collider map in the for loop, ie ObiCollider2D instead of ObiCollider. I'm pasting the 2D version just in case:

Code:

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using Obi;

[RequireComponent(typeof(ObiSolver))]
public class CollisionCounter : MonoBehaviour {

   ObiSolver solver;
   public int counter = 0;
   public Collider2D targetCollider = null;
   
   Obi.ObiSolver.ObiCollisionEventArgs frame;
   HashSet<int> particles = new HashSet<int>();

   void Awake(){
       solver = GetComponent<Obi.ObiSolver>();
   }

   void OnEnable () {
       solver.OnCollision += Solver_OnCollision;
   }

   void OnDisable(){
       solver.OnCollision -= Solver_OnCollision;
   }
   
   void Solver_OnCollision (object sender, Obi.ObiSolver.ObiCollisionEventArgs e)
   {
       HashSet<int> currentParticles = new HashSet<int>();
       
       for(int i = 0;  i < e.contacts.Count; ++i)
       {
           if (e.contacts.Data[i].distance < 0.001f)
           {

               Component collider;
               if (ObiCollider2D.idToCollider.TryGetValue(e.contacts.Data[i].other,out collider)){

                   if (collider == targetCollider)
                       currentParticles.Add(e.contacts.Data[i].particle);

               }
           }
       }

       particles.ExceptWith(currentParticles);
       counter += particles.Count;
        particles = currentParticles;Debug.Log(counter);
   }

}

Ahhh! I was not using Obi Collider at all as a component... I just added the Obi Collider 2D and it works. Thank you very much Jose!