public void onActivation(Location location, SpoutPlayer player) {
    // Setting player health
    if (player.getHealth() == 20) return;
    if (player.getHealth() >= 15) player.setHealth(20);
    else player.setHealth(player.getHealth() + 5);

    // Playing red drip particles on player location
    Location loc = player.getLocation();
    Particle healParticle = new Particle(ParticleType.DRIPWATER, loc, new Vector(0.5D, 3.0D, 0.5D));
    healParticle.setParticleBlue(0.0F).setParticleGreen(0.0F).setParticleRed(1.0F);
    healParticle.setMaxAge(40).setAmount(15).setGravity(1.1F);
    healParticle.spawn();
  }