#pragma strict

public var colorToChange : Color;

private var _particleSystem : ParticleSystem;
private var _particles : ParticleSystem.Particle[];

public function Start() : void
{
    //_particleSystem = gameObject.GetComponent(ParticleSystem);
    _particles = new ParticleSystem.Particle[1000];
}

public function LateUpdate() : void
{
    var count : int = particleSystem.GetParticles(_particles);

    print("---");
    print(_particles);
    print(count);
    print(particleSystem.particleCount);

    for (var i = 0; i < count; i++)
    {
        var hit : RaycastHit;
        if (Physics.Raycast (_particles[i].position, Vector3.forward, hit))
        {
            print("particle hit");
            _particles[i].color = colorToChange;
        }
    }
    particleSystem.SetParticles(_particles,count);
}