local function do_particles(pos)
  local vel = 0.5

  core.add_particlespawner({
    amount = math.random(5, 10),
    time = 0.8,
    exptime = 0.3,
    vertical = true,
    glow = core.LIGHT_MAX,

    -- collisiondetection = true,
    -- texture = "pyutest-snowball-particle.png",
    pos = pos,
    node = {name = "pyutest_blocks:snow"},
    -- minvel = vector.new(-vel, -vel, -vel),
    -- maxvel = vector.new(vel, vel, vel),
  })
end

PyuTest.make_projectile("pyutest_projectiles:snowball", {
  visual = "sprite",
  visual_size = {x = 1, y = 1},
  textures = {
    "pyutest-snowball.png",
  }
}, {
  _slowdown = false,
}, {
  on_hit_node = function (self, pos, node)
    do_particles(pos + vector.new(0, 1, 0))
  end,
  on_hit_object = function (self, object)
    do_particles(self.object:get_pos())
    PyuTest.deal_damage(object, 1, PyuTest.DAMAGE_TYPES.shot("Snowball"))
  end
})