void OnParticleTrigger()
    {
        // particles
        List <ParticleSystem.Particle> enter = new List <ParticleSystem.Particle>();

        // get
        int numEnter = ps.GetTriggerParticles(ParticleSystemTriggerEventType.Enter, enter);

        // iterate
        for (int i = 0; i < numEnter; i++)
        {
            ParticleSystem.Particle p = enter[i];
            // instantiate the Game Object
            GameObject obj = Instantiate(colliderToSpawn, p.position, Quaternion.identity);
            obj.SetActive(true);
            pStats.takePlayerDMG(fireDamage);
            enter[i] = p;
        }


        // set
        ps.SetTriggerParticles(ParticleSystemTriggerEventType.Enter, enter);
    }