-- ===================================================================

-- This parameter is a light level used in Outer Space realms. Due  to
-- an apparent bug in the MT mapgen API, this parameter should be less
-- than the maximum allowed level (15).

default.space_light_generic = 10

-- ===================================================================

local enable_ncvirus = ocutil.bool_default ("enable_ncvirus")
local node_name
local use_spacesuit

-- ===================================================================

minetest.register_craftitem ("default:spacesuit", {
    description     = "Spacesuit Being Worn"       ,
    inventory_image = "default_spacesuit_item.png" ,

    on_use = function (itemstack, user, pointed_thing)
        if  itemstack:take_item() ~= nil then
            itemstack:add_item ("default:spacesuit_off")
        end
        return itemstack
    end ,
})

-- ===================================================================

minetest.register_craftitem ("default:spacesuit_off", {
    description     = "Spacesuit Taken Off"        ,
    inventory_image = "default_spacesuit_off.png"  ,

    on_use = function (itemstack, user, pointed_thing)
        if  itemstack:take_item() ~= nil then
            itemstack:add_item ("default:spacesuit")
        end
        return itemstack
    end ,
})

-- ===================================================================

minetest.register_craftitem ("default:costume_dress_pink_01"       , {
    description     = "Costume Pink Dress Being Worn" ,
    inventory_image = "costume_dress_pink_01.png"     ,

    on_use = function (itemstack, user, pointed_thing)
        if  itemstack:take_item() ~= nil then
            itemstack:add_item ("default:costume_dress_pink_01_off"  )
        end
        return itemstack
    end ,
})

-- ===================================================================

minetest.register_craftitem ("default:costume_dress_pink_01_off"   , {
    description     = "Costume Pink Dress Not Worn"   ,
    inventory_image = "costume_dress_pink_01_off.png" ,

    on_use = function (itemstack, user, pointed_thing)
        if  itemstack:take_item() ~= nil then
            itemstack:add_item ("default:costume_dress_pink_01"      )
        end
        return itemstack
    end ,
})

-- ===================================================================

-- 210906 RJK: Added music suit.

minetest.register_craftitem ("default:musicbadge", {
    description     = "Music Badge Being Worn" ,
    inventory_image = "default_musicbadge.png" ,

    on_use = function (itemstack, user, pointed_thing)
        if  itemstack:take_item() ~= nil then
            itemstack:add_item ("default:musicbadge_off")
        end
        return itemstack
    end ,
})

-- ===================================================================

-- 210906 RJK: Added music suit.

minetest.register_craftitem ("default:musicbadge_off", {
    description     = "Music Badge Taken Off"      ,
    inventory_image = "default_musicbadge_off.png" ,

    on_use = function (itemstack, user, pointed_thing)
        if  itemstack:take_item() ~= nil then
            itemstack:add_item ("default:musicbadge")
        end
        return itemstack
    end ,
})

-- ===================================================================

minetest.register_craftitem ("default:ncmask", {
    description     = "Anti-Virus Mask Being Worn" ,
    inventory_image = "default_ncmask.png"         ,

    on_use = function (itemstack, user, pointed_thing)
        if  itemstack:take_item() ~= nil then
            itemstack:add_item ("default:ncmask_off")
        end
        return itemstack
    end ,
})

-- ===================================================================

minetest.register_craftitem ("default:ncmask_off", {
    description     = "Virus Mask Taken Off"    ,
    inventory_image = "default_ncmask_off.png"  ,

    on_use = function (itemstack, user, pointed_thing)
        if  itemstack:take_item() ~= nil then
            itemstack:add_item ("default:ncmask")
        end
        return itemstack
    end ,
})

-- ===================================================================

minetest.register_craftitem ("default:costume_cat_crookedstar"     , {
    description     = "Cat CrookedStar Costume Being Worn" ,
    inventory_image = "costume_cat_crookedstar.png"        ,

    on_use = function (itemstack, user, pointed_thing)
        if  itemstack:take_item() ~= nil then
            itemstack:add_item ("default:costume_cat_crookedstar_off" )
        end
        return itemstack
    end ,
})

-- ===================================================================

minetest.register_craftitem ("default:costume_cat_crookedstar_off" , {
    description     = "Costume Cat Crookedstar Not Worn" ,
    inventory_image = "costume_cat_crookedstar_off.png"  ,

    on_use = function (itemstack, user, pointed_thing)
        if  itemstack:take_item() ~= nil then
            itemstack:add_item ("default:costume_cat_crookedstar"    )
        end
        return itemstack
    end ,
})

-- ===================================================================

minetest.register_craftitem ("default:costume_cat_grey"        , {
    description     = "Grey Cat Costume Being Worn"  ,
    inventory_image = "costume_cat_grey.png"         ,

    on_use = function (itemstack, user, pointed_thing)
        if  itemstack:take_item() ~= nil then
            itemstack:add_item ("default:costume_cat_grey_off"   )
        end
        return itemstack
    end ,
})

-- ===================================================================

minetest.register_craftitem ("default:costume_cat_grey_off"    , {
    description     = "Grey Cat Costume Not Worn" ,
    inventory_image = "costume_cat_grey_off.png"  ,

    on_use = function (itemstack, user, pointed_thing)
        if  itemstack:take_item() ~= nil then
            itemstack:add_item ("default:costume_cat_grey"       )
        end
        return itemstack
    end ,
})

-- ===================================================================

minetest.register_craftitem ("default:costume_cat_onesie"          , {
    description     = "Cat Onesie Costume Being Worn" ,
    inventory_image = "costume_cat_onesie.png"        ,

    on_use = function (itemstack, user, pointed_thing)
        if  itemstack:take_item() ~= nil then
            itemstack:add_item ("default:costume_cat_onesie_off"     )
        end
        return itemstack
    end ,
})

-- ===================================================================

minetest.register_craftitem ("default:costume_cat_onesie_off"      , {
    description     = "Cat Onesie Costume Not Worn" ,
    inventory_image = "costume_cat_onesie_off.png"  ,

    on_use = function (itemstack, user, pointed_thing)
        if  itemstack:take_item() ~= nil then
            itemstack:add_item ("default:costume_cat_onesie"         )
        end
        return itemstack
    end ,
})

-- ===================================================================

minetest.register_craftitem ("default:costume_cat_oreo"            , {
    description     = "Cat Oreo Costume Being Worn" ,
    inventory_image = "costume_cat_oreo.png"        ,

    on_use = function (itemstack, user, pointed_thing)
        if  itemstack:take_item() ~= nil then
            itemstack:add_item ("default:costume_cat_oreo_off"       )
        end
        return itemstack
    end ,
})

-- ===================================================================

minetest.register_craftitem ("default:costume_cat_oreo_off"        , {
    description     = "Cat Oreo Costume Not Worn" ,
    inventory_image = "costume_cat_oreo_off.png"  ,

    on_use = function (itemstack, user, pointed_thing)
        if  itemstack:take_item() ~= nil then
            itemstack:add_item ("default:costume_cat_oreo"           )
        end
        return itemstack
    end ,
})

-- ===================================================================

minetest.register_craftitem ("default:costume_tiger"               , {
    description     = "Tiger Costume Being Worn" ,
    inventory_image = "costume_tiger.png"        ,

    on_use = function (itemstack, user, pointed_thing)
        if  itemstack:take_item() ~= nil then
            itemstack:add_item ("default:costume_tiger_off"          )
        end
        return itemstack
    end ,
})

-- ===================================================================

minetest.register_craftitem ("default:costume_tiger_off"           , {
    description     = "Tiger Costume Not Worn" ,
    inventory_image = "costume_tiger_off.png"  ,

    on_use = function (itemstack, user, pointed_thing)
        if  itemstack:take_item() ~= nil then
            itemstack:add_item ("default:costume_tiger"              )
        end
        return itemstack
    end ,
})

-- ===================================================================

minetest.register_craftitem ("default:costume_dress_wedding_01"    , {
    description     = "Wedding Dress Costume Being Worn" ,
    inventory_image = "costume_dress_wedding_01.png"     ,

    on_use = function (itemstack, user, pointed_thing)
        if  itemstack:take_item() ~= nil then
            itemstack:add_item ("default:costume_dress_wedding_01_off" )
        end
        return itemstack
    end ,
})

-- ===================================================================

minetest.register_craftitem ("default:costume_dress_wedding_01_off" , {
    description     = "Wedding Dress Costume Not Worn"   ,
    inventory_image = "costume_dress_wedding_01_off.png" ,

    on_use = function (itemstack, user, pointed_thing)
        if  itemstack:take_item() ~= nil then
            itemstack:add_item ("default:costume_dress_wedding_01"   )
        end
        return itemstack
    end ,
})

-- ===================================================================

minetest.register_craftitem ("default:costume_wolf_onesie_01"    , {
    description     = "Wolf Onesie Costume #1 Being Worn" ,
    inventory_image = "costume_wolf_onesie_01.png"        ,

    on_use = function (itemstack, user, pointed_thing)
        if  itemstack:take_item() ~= nil then
            itemstack:add_item ("default:costume_wolf_onesie_01_off" )
        end
        return itemstack
    end ,
})

-- ===================================================================

minetest.register_craftitem ("default:costume_wolf_onesie_01_off" , {
    description     = "Wolf Onesie Costume #1 Not Worn"   ,
    inventory_image = "costume_wolf_onesie_01_off.png"    ,

    on_use = function (itemstack, user, pointed_thing)
        if  itemstack:take_item() ~= nil then
            itemstack:add_item ("default:costume_wolf_onesie_01"   )
        end
        return itemstack
    end ,
})

-- ===================================================================

-- Armor base-names (i.e., names without "default:") listed in the or-
-- der of what goes on first.

-- 210906 RJK: Dropped  "default" version of  crystal armor  and added
-- music suit.

local canon_armor = {
    "ncmask"             ,
    "musicbadge"         ,
    "spacesuit"          ,

    "costume_cat_crookedstar"  ,
    "costume_cat_grey"         ,
    "costume_cat_onesie"       ,
    "costume_cat_oreo"         ,
    "costume_dress_pink_01"    ,
    "costume_dress_wedding_01" ,
    "costume_tiger"            ,
    "costume_wolf_onesie_01"   ,
}

-- ===================================================================

-- "showing" may be:
-- (a) nil
-- (b) a scalar armor base-name from "canon_armor"
-- (c) a list of such base-names

-- ===================================================================

local showing_str = function (showing)
    if type (showing) ~= "table" then return showing end
    local str = ""
    for _, one_item in ipairs (showing) do
        str = str .. one_item .. ","
    end
    return str
end

-- ===================================================================

-- A  tick-cycle length of greater than one doesn't  work well in this
-- context.

local tick       = 0
local tick_cycle = 1

-- ===================================================================

default.update_player_skins = function (pllist)

-- ===================================================================

    local change_skin
    local overlay_name

    if ocutil.mod_exists ("coderskins" ) then
          change_skin  = coderskins.change_skin
          overlay_name = coderskins.overlay_name
    end
    if ocutil.mod_exists ("miniskins"  ) then
          change_skin  = miniskins.change_skin
          overlay_name = miniskins.overlay_name
    end
    if    change_skin == nil then return end

-- ===================================================================

    if  use_spacesuit == nil then
        use_spacesuit =  minetest.setting_get ("spacesuit")

        if ocutil.str_false (use_spacesuit) then
            use_spacesuit =  false
        end
        if  use_spacesuit == nil            then
            use_spacesuit =  true
        end
    end
    if not use_spacesuit then return end

-- ===================================================================

    local spccall =  true
    if    pllist  == nil then
          pllist  =  minetest.get_connected_players()
          spccall =  false
    end

-- ===================================================================

    for _, player in ipairs (pllist) do
        local plname = player:get_player_name()

-- Check to  see if the current player does or doesn't have active ar-
-- mor in inventory.

        local has_armor = {}
        local one_item

        for _, one_item in ipairs (canon_armor) do
            if  player:get_inventory():contains_item ("main",
                "default:" .. one_item) then
                table.insert (has_armor, one_item)
            end
        end

        if  rawget (_G, "armor") and armor.cat ~= nil then
            local alist3d =  armor.cat [plname]
            if    alist3d ~= nil then
                table.insert (has_armor, alist3d)
            end
        end

        local ktable  = ocutil.vtable_to_ktable (has_armor)
        local showing = overlay_name [plname]
        if coderskins.force_update then showing = "" end

        if  showing_str (showing   ) ~=
            showing_str (has_armor ) then
            change_skin (plname, has_armor)
        end

        if  spccall == false and
            math.random() < (0.1 * tick_cycle) then
            if ktable ["spacesuit"] then
                if  player:get_breath() < 11 then
                    player:set_breath (11)
                end
            end
        end

-- ===================================================================

        local pos
                                -- Kludge to force bubbles update
        if  spccall == false and
            math.random() > (1.00 - (tick_cycle / 100)) then
            if pos == nil then pos = player:getpos() end
        end

-- ===================================================================

        if  spccall == false and
            enable_ncvirus   and
            not ktable ["ncmask"] and
            not ktable ["spacesuit"] and
            math.random() > (1.00 - (tick_cycle / 25)) then

            if pos == nil then pos = player:getpos() end
            local tnob = minetest.get_objects_inside_radius (pos, 6)

            for _, obj in ipairs (tnob) do
                if  obj:is_player() and
                    obj:get_player_name() ~= plname then
                    local hp = player:get_hp() - 1
                    minetest.chat_send_player (plname,
"NC Virus damage! You're not social distancing or wearing a mask!")
                    player:set_hp (hp)
                end
            end
        end
    end
end

-- ===================================================================

minetest.register_globalstep (function (dtime)
    tick = tick + 1
    if tick < tick_cycle then return end
    tick = 0
    default.update_player_skins()
end)

-- ===================================================================

-- 210701 RJK: For MT 5+,  vacuum may require revert of  the following
-- trollstream commit in order to work correctly:
--
-- Hash:    3253b6bd2238eaa8f773f7881f8e47200dc5f42a
-- From:    Lars Hofhansl <larsh@apache.org>
-- Date:    Sun, 16 Oct 2016 21:27:21 -0700
-- Subject: Don't use  day light sky unless  noclip and  free_move are
--          enabled

-- If the commit can't be reverted, world admins will need  to set the
-- boolean option "disable_vacuum" to true in "world.conf".

local disable_vacuum = false

if minetest.setting_getbool ("disable_vacuum") then
    disable_vacuum = true
end

-- ===================================================================

node_name = "default:vacuum"
--
if not disable_vacuum then
minetest.register_node (node_name, {
    description         = "Vacuum"                    ,
    drawtype            = "airlike"                   ,
    paramtype           = "light"                     ,
    sunlight_propagates = true                        ,
    light_source        = 0                           ,
    tiles               = { "transparent.png"  }      ,
    post_effect_color   = { a=1, r=0, g=0, b=0 }      ,

    buildable_to        = true                        ,
    diggable            = false                       ,
    is_ground_content   = false                       ,
    pointable           = false                       ,
    walkable            = false                       ,

    drowning            = 1                           ,

    groups = {
        vacuum=1 ,
        not_in_creative_inventory=1
    } ,
})
end

-- ===================================================================

local fairlight = ocutil.numsetzero ("fairlight")

minetest.register_node ("default:fair", {
    description         = "Fair Air"                  ,
    drawtype            = "airlike"                   ,
    paramtype           = "light"                     ,
    sunlight_propagates = true                        ,
    light_source        = fairlight                   ,
    tiles               = { "transparent.png"  }      ,
    post_effect_color   = { a=1, r=0, g=0, b=0 }      ,

    buildable_to        = true                        ,
    diggable            = false                       ,
    is_ground_content   = false                       ,
    pointable           = false                       ,
    walkable            = false                       ,

    drowning            = 0                           ,
})

-- ===================================================================

local c_air =  minetest.get_content_id ("air")
if    c_air == nil then ocutil.panic ("air undefined") end

if  disable_vacuum then
    default.c_vacuum = c_air
    default.convert_force ("default:vacuum", "air")
else
    default.c_vacuum = minetest.get_content_id ("default:vacuum")
end

-- ===================================================================
-- End of file.