Fix another crash.

mods/artifact_base/init.lua

@@ -60,7 +60,7 @@ function artifact.play_sound(def)
     --def.gain = nil
     if def.pos then
         for _, m in pairs(artifact.players) do
-            local dist = m.pos:distance(def.pos)
+            local dist = vector.distance(m.pos, def.pos)
             if dist <= (def.range or 32) and m.name ~= def.exclude_player and not (def.to_player and m.name ~= def.to_player) then
                 def.to_player = m.name
                 def.gain = (def.gain or 1) *(1 -math.sqrt(dist /(def.range or 32)))

mods/artifact_player/init.lua

@@ -10,7 +10,8 @@ Player = setmetatable({
         local m = setmetatable({
             object = p,
             pitch = 0,
-            yaw = 0
+            yaw = 0,
+            pos = p:get_pos()
         }, {__index = Player})
         
         m.name = p:get_player_name()

mods/artifact_story/init.lua

@@ -64,6 +64,9 @@ minetest.register_entity(":artifact:vix_scene", {
     end,
     on_deactivate = function(e)
         vix_scene = nil
+        if e.particles then
+            minetest.delete_particlespawner(e.particles)
+        end
     end,
     on_step = function(e)
         if e._can_check then
@@ -110,7 +113,7 @@ local function pre_vix_on_whacked(type, target)
                 minetest.after(1, function()
                     artifact.push_chat_message("Hehe.", "Key", "artifact_key_splash_low.png")
                 end)
-            elseif num == 5 then -- All generators are down.
+            elseif num >= 5 then -- All generators are down.
                 vix_scene._can_check = nil
                 -- Wait just a bit, so the player can look up.
                 minetest.after(0.5, function()
@@ -263,7 +266,7 @@ artifact.register_node("stasis_beacon", {
     paramtype = "light"
 })
 
--- The 'cutscene' playerd after the player frees Vix.
+-- The 'cutscene' played after the player frees Vix.
 function ns.play_vix_scene()
     -- Kaboom.
     minetest.add_particle {