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Assets/UnityTechnologies/EffectExamples/Shared/Scripts/ParticleCollision.cs

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+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+/// <summary>
+/// This script demonstrate how to use the particle system collision callback.
+/// The sample using it is the "Extinguish" prefab. It use a second, non displayed
+/// particle system to lighten the load of collision detection.
+/// </summary>
+public class ParticleCollision : MonoBehaviour
+{
+    private List<ParticleCollisionEvent> m_CollisionEvents = new List<ParticleCollisionEvent>();
+    private ParticleSystem m_ParticleSystem;
+
+
+    private void Start()
+    {
+        m_ParticleSystem = GetComponent<ParticleSystem>();
+    }
+
+
+    private void OnParticleCollision(GameObject other)
+    {
+        int numCollisionEvents = m_ParticleSystem.GetCollisionEvents(other, m_CollisionEvents);
+        for (int i = 0; i < numCollisionEvents; ++i)
+        {
+            var col = m_CollisionEvents[i].colliderComponent;
+
+            var fire = col.GetComponent<ExtinguishableFire>();
+            if (fire != null)
+                fire.Extinguish();
+        }
+    }
+}