mods/default/furnace.lua

   1
   2 --
   3 -- Formspecs
   4 --
   5
   6 local function active_formspec(fuel_percent, item_percent)
   7         local formspec =
   8                 "size[8,8.5]"..
   9                 default.gui_bg..
  10                 default.gui_bg_img..
  11                 default.gui_slots..
  12                 "list[current_name;src;2.75,0.5;1,1;]"..
  13                 "list[current_name;fuel;2.75,2.5;1,1;]"..
  14                 "image[2.75,1.5;1,1;default_furnace_fire_bg.png^[lowpart:"..
  15                 (100-fuel_percent)..":default_furnace_fire_fg.png]"..
  16                 "image[3.75,1.5;1,1;gui_furnace_arrow_bg.png^[lowpart:"..
  17                 (item_percent)..":gui_furnace_arrow_fg.png^[transformR270]"..
  18                 "list[current_name;dst;4.75,0.96;2,2;]"..
  19                 "list[current_player;main;0,4.25;8,1;]"..
  20                 "list[current_player;main;0,5.5;8,3;8]"..
  21                 default.get_hotbar_bg(0, 4.25)
  22         return formspec
  23 end
  24
  25 local inactive_formspec =
  26         "size[8,8.5]"..
  27         default.gui_bg..
  28         default.gui_bg_img..
  29         default.gui_slots..
  30         "list[current_name;src;2.75,0.5;1,1;]"..
  31         "list[current_name;fuel;2.75,2.5;1,1;]"..
  32         "image[2.75,1.5;1,1;default_furnace_fire_bg.png]"..
  33         "image[3.75,1.5;1,1;gui_furnace_arrow_bg.png^[transformR270]"..
  34         "list[current_name;dst;4.75,0.96;2,2;]"..
  35         "list[current_player;main;0,4.25;8,1;]"..
  36         "list[current_player;main;0,5.5;8,3;8]"..
  37         default.get_hotbar_bg(0, 4.25)
  38
  39 --
  40 -- Node callback functions that are the same for active and inactive furnace
  41 --
  42
  43 local function can_dig(pos, player)
  44         local meta = minetest.get_meta(pos);
  45         local inv = meta:get_inventory()
  46         return inv:is_empty("fuel") and inv:is_empty("dst") and inv:is_empty("src")
  47 end
  48
  49 local function allow_metadata_inventory_put(pos, listname, index, stack, player)
  50         if minetest.is_protected(pos, player:get_player_name()) then
  51                 return 0
  52         end
  53         local meta = minetest.get_meta(pos)
  54         local inv = meta:get_inventory()
  55         if listname == "fuel" then
  56                 if minetest.get_craft_result({method="fuel", width=1, items={stack}}).time ~= 0 then
  57                         if inv:is_empty("src") then
  58                                 meta:set_string("infotext", "Furnace is empty")
  59                         end
  60                         return stack:get_count()
  61                 else
  62                         return 0
  63                 end
  64         elseif listname == "src" then
  65                 return stack:get_count()
  66         elseif listname == "dst" then
  67                 return 0
  68         end
  69 end
  70
  71 local function allow_metadata_inventory_move(pos, from_list, from_index, to_list, to_index, count, player)
  72         local meta = minetest.get_meta(pos)
  73         local inv = meta:get_inventory()
  74         local stack = inv:get_stack(from_list, from_index)
  75         return allow_metadata_inventory_put(pos, to_list, to_index, stack, player)
  76 end
  77
  78 local function allow_metadata_inventory_take(pos, listname, index, stack, player)
  79         if minetest.is_protected(pos, player:get_player_name()) then
  80                 return 0
  81         end
  82         return stack:get_count()
  83 end
  84
  85 --
  86 -- Node definitions
  87 --
  88
  89 minetest.register_node("default:furnace", {
  90         description = "Furnace",
  91         tiles = {
  92                 "default_furnace_top.png", "default_furnace_bottom.png",
  93                 "default_furnace_side.png", "default_furnace_side.png",
  94                 "default_furnace_side.png", "default_furnace_front.png"
  95         },
  96         paramtype2 = "facedir",
  97         groups = {cracky=2},
  98         legacy_facedir_simple = true,
  99         is_ground_content = false,
 100         sounds = default.node_sound_stone_defaults(),
 101
 102         can_dig = can_dig,
 103
 104         allow_metadata_inventory_put = allow_metadata_inventory_put,
 105         allow_metadata_inventory_move = allow_metadata_inventory_move,
 106         allow_metadata_inventory_take = allow_metadata_inventory_take,
 107 })
 108
 109 minetest.register_node("default:furnace_active", {
 110         description = "Furnace",
 111         tiles = {
 112                 "default_furnace_top.png", "default_furnace_bottom.png",
 113                 "default_furnace_side.png", "default_furnace_side.png",
 114                 "default_furnace_side.png",
 115                 {
 116                         image = "default_furnace_front_active.png",
 117                         backface_culling = false,
 118                         animation = {
 119                                 type = "vertical_frames",
 120                                 aspect_w = 16,
 121                                 aspect_h = 16,
 122                                 length = 1.5
 123                         },
 124                 }
 125         },
 126         paramtype2 = "facedir",
 127         light_source = 8,
 128         drop = "default:furnace",
 129         groups = {cracky=2, not_in_creative_inventory=1},
 130         legacy_facedir_simple = true,
 131         is_ground_content = false,
 132         sounds = default.node_sound_stone_defaults(),
 133
 134         can_dig = can_dig,
 135
 136         aallow_metadata_inventory_put = allow_metadata_inventory_put,
 137         allow_metadata_inventory_move = allow_metadata_inventory_move,
 138         allow_metadata_inventory_take = allow_metadata_inventory_take,
 139 })
 140
 141 --
 142 -- ABM
 143 --
 144
 145 local function swap_node(pos, name)
 146         local node = minetest.get_node(pos)
 147         if node.name == name then
 148                 return
 149         end
 150         node.name = name
 151         minetest.swap_node(pos, node)
 152 end
 153
 154 minetest.register_abm({
 155         nodenames = {"default:furnace", "default:furnace_active"},
 156         interval = 1.0,
 157         chance = 1,
 158         action = function(pos, node, active_object_count, active_object_count_wider)
 159                 --
 160                 -- Inizialize metadata
 161                 --
 162                 local meta = minetest.get_meta(pos)
 163                 local fuel_time = meta:get_float("fuel_time") or 0
 164                 local src_time = meta:get_float("src_time") or 0
 165                 local fuel_totaltime = meta:get_float("fuel_totaltime") or 0
 166
 167                 --
 168                 -- Inizialize inventory
 169                 --
 170                 local inv = meta:get_inventory()
 171                 for listname, size in pairs({
 172                                 src = 1,
 173                                 fuel = 1,
 174                                 dst = 4,
 175                 }) do
 176                         if inv:get_size(listname) ~= size then
 177                                 inv:set_size(listname, size)
 178                         end
 179                 end
 180                 local srclist = inv:get_list("src")
 181                 local fuellist = inv:get_list("fuel")
 182                 local dstlist = inv:get_list("dst")
 183
 184                 --
 185                 -- Cooking
 186                 --
 187
 188                 -- Check if we have cookable content
 189                 local cooked, aftercooked = minetest.get_craft_result({method = "cooking", width = 1, items = srclist})
 190                 local cookable = true
 191
 192                 if cooked.time == 0 then
 193                         cookable = false
 194                 end
 195
 196                 -- Check if we have enough fuel to burn
 197                 if fuel_time < fuel_totaltime then
 198                         -- The furnace is currently active and has enough fuel
 199                         fuel_time = fuel_time + 1
 200
 201                         -- If there is a cookable item then check if it is ready yet
 202                         if cookable then
 203                                 src_time = src_time + 1
 204                                 if src_time >= cooked.time then
 205                                         -- Place result in dst list if possible
 206                                         if inv:room_for_item("dst", cooked.item) then
 207                                                 inv:add_item("dst", cooked.item)
 208                                                 inv:set_stack("src", 1, aftercooked.items[1])
 209                                                 src_time = 0
 210                                         end
 211                                 end
 212                         end
 213                 else
 214                         -- Furnace ran out of fuel
 215                         if cookable then
 216                                 -- We need to get new fuel
 217                                 local fuel, afterfuel = minetest.get_craft_result({method = "fuel", width = 1, items = fuellist})
 218
 219                                 if fuel.time == 0 then
 220                                         -- No valid fuel in fuel list
 221                                         fuel_totaltime = 0
 222                                         fuel_time = 0
 223                                         src_time = 0
 224                                 else
 225                                         -- Take fuel from fuel list
 226                                         inv:set_stack("fuel", 1, afterfuel.items[1])
 227
 228                                         fuel_totaltime = fuel.time
 229                                         fuel_time = 0
 230
 231                                 end
 232                         else
 233                                 -- We don't need to get new fuel since there is no cookable item
 234                                 fuel_totaltime = 0
 235                                 fuel_time = 0
 236                                 src_time = 0
 237                         end
 238                 end
 239
 240                 --
 241                 -- Update formspec, infotext and node
 242                 --
 243                 local formspec = inactive_formspec
 244                 local item_state = ""
 245                 local item_percent = 0
 246                 if cookable then
 247                         item_percent =  math.floor(src_time / cooked.time * 100)
 248                         item_state = item_percent .. "%"
 249                 else
 250                         if srclist[1]:is_empty() then
 251                                 item_state = "Empty"
 252                         else
 253                                 item_state = "Not cookable"
 254                         end
 255                 end
 256
 257                 local fuel_state = "Empty"
 258                 local active = "inactive "
 259                 if fuel_time <= fuel_totaltime and fuel_totaltime ~= 0 then
 260                         active = "active "
 261                         local fuel_percent = math.floor(fuel_time / fuel_totaltime * 100)
 262                         fuel_state = fuel_percent .. "%"
 263                         formspec = active_formspec(fuel_percent, item_percent)
 264                         swap_node(pos, "default:furnace_active")
 265                 else
 266                         if not fuellist[1]:is_empty() then
 267                                 fuel_state = "0%"
 268                         end
 269                         swap_node(pos, "default:furnace")
 270                 end
 271
 272                 local infotext =  "Furnace " .. active .. "(Item: " .. item_state .. "; Fuel: " .. fuel_state .. ")"
 273
 274                 --
 275                 -- Set meta values
 276                 --
 277                 meta:set_float("fuel_totaltime", fuel_totaltime)
 278                 meta:set_float("fuel_time", fuel_time)
 279                 meta:set_float("src_time", src_time)
 280                 meta:set_string("formspec", formspec)
 281                 meta:set_string("infotext", infotext)
 282         end,
 283 })