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                 "listring[current_name;dst]"..
  22                 "listring[current_player;main]"..
  23                 "listring[current_name;src]"..
  24                 "listring[current_player;main]"..
  25                 "listring[current_name;fuel]"..
  26                 "listring[current_player;main]"..
  27                 default.get_hotbar_bg(0, 4.25)
  28         return formspec
  29 end
  30
  31 local inactive_formspec =
  32         "size[8,8.5]"..
  33         default.gui_bg..
  34         default.gui_bg_img..
  35         default.gui_slots..
  36         "list[current_name;src;2.75,0.5;1,1;]"..
  37         "list[current_name;fuel;2.75,2.5;1,1;]"..
  38         "image[2.75,1.5;1,1;default_furnace_fire_bg.png]"..
  39         "image[3.75,1.5;1,1;gui_furnace_arrow_bg.png^[transformR270]"..
  40         "list[current_name;dst;4.75,0.96;2,2;]"..
  41         "list[current_player;main;0,4.25;8,1;]"..
  42         "list[current_player;main;0,5.5;8,3;8]"..
  43         "listring[current_name;dst]"..
  44         "listring[current_player;main]"..
  45         "listring[current_name;src]"..
  46         "listring[current_player;main]"..
  47         "listring[current_name;fuel]"..
  48         "listring[current_player;main]"..
  49         default.get_hotbar_bg(0, 4.25)
  50
  51 --
  52 -- Node callback functions that are the same for active and inactive furnace
  53 --
  54
  55 local function can_dig(pos, player)
  56         local meta = minetest.get_meta(pos);
  57         local inv = meta:get_inventory()
  58         return inv:is_empty("fuel") and inv:is_empty("dst") and inv:is_empty("src")
  59 end
  60
  61 local function allow_metadata_inventory_put(pos, listname, index, stack, player)
  62         if minetest.is_protected(pos, player:get_player_name()) then
  63                 return 0
  64         end
  65         local meta = minetest.get_meta(pos)
  66         local inv = meta:get_inventory()
  67         if listname == "fuel" then
  68                 if minetest.get_craft_result({method="fuel", width=1, items={stack}}).time ~= 0 then
  69                         if inv:is_empty("src") then
  70                                 meta:set_string("infotext", "Furnace is empty")
  71                         end
  72                         return stack:get_count()
  73                 else
  74                         return 0
  75                 end
  76         elseif listname == "src" then
  77                 return stack:get_count()
  78         elseif listname == "dst" then
  79                 return 0
  80         end
  81 end
  82
  83 local function allow_metadata_inventory_move(pos, from_list, from_index, to_list, to_index, count, player)
  84         local meta = minetest.get_meta(pos)
  85         local inv = meta:get_inventory()
  86         local stack = inv:get_stack(from_list, from_index)
  87         return allow_metadata_inventory_put(pos, to_list, to_index, stack, player)
  88 end
  89
  90 local function allow_metadata_inventory_take(pos, listname, index, stack, player)
  91         if minetest.is_protected(pos, player:get_player_name()) then
  92                 return 0
  93         end
  94         return stack:get_count()
  95 end
  96
  97 local function swap_node(pos, name)
  98         local node = minetest.get_node(pos)
  99         if node.name == name then
 100                 return
 101         end
 102         node.name = name
 103         minetest.swap_node(pos, node)
 104 end
 105
 106 local function furnace_node_timer(pos, elapsed)
 107         --
 108         -- Inizialize metadata
 109         --
 110         local meta = minetest.get_meta(pos)
 111         local fuel_time = meta:get_float("fuel_time") or 0
 112         local src_time = meta:get_float("src_time") or 0
 113         local fuel_totaltime = meta:get_float("fuel_totaltime") or 0
 114
 115         local inv = meta:get_inventory()
 116         local srclist = inv:get_list("src")
 117         local fuellist = inv:get_list("fuel")
 118
 119         --
 120         -- Cooking
 121         --
 122
 123         -- Check if we have cookable content
 124         local cooked, aftercooked = minetest.get_craft_result({method = "cooking", width = 1, items = srclist})
 125         local cookable = true
 126
 127         if cooked.time == 0 then
 128                 cookable = false
 129         end
 130
 131         -- Check if we have enough fuel to burn
 132         if fuel_time < fuel_totaltime then
 133                 -- The furnace is currently active and has enough fuel
 134                 fuel_time = fuel_time + 1
 135
 136                 -- If there is a cookable item then check if it is ready yet
 137                 if cookable then
 138                         src_time = src_time + 1
 139                         if src_time >= cooked.time then
 140                                 -- Place result in dst list if possible
 141                                 if inv:room_for_item("dst", cooked.item) then
 142                                         inv:add_item("dst", cooked.item)
 143                                         inv:set_stack("src", 1, aftercooked.items[1])
 144                                         src_time = 0
 145                                 end
 146                         end
 147                 end
 148         else
 149                 -- Furnace ran out of fuel
 150                 if cookable then
 151                         -- We need to get new fuel
 152                         local fuel, afterfuel = minetest.get_craft_result({method = "fuel", width = 1, items = fuellist})
 153
 154                         if fuel.time == 0 then
 155                                 -- No valid fuel in fuel list
 156                                 fuel_totaltime = 0
 157                                 fuel_time = 0
 158                                 src_time = 0
 159                         else
 160                                 -- Take fuel from fuel list
 161                                 inv:set_stack("fuel", 1, afterfuel.items[1])
 162
 163                                 fuel_totaltime = fuel.time
 164                                 fuel_time = 0
 165                         end
 166                 else
 167                         -- We don't need to get new fuel since there is no cookable item
 168                         fuel_totaltime = 0
 169                         fuel_time = 0
 170                         src_time = 0
 171                 end
 172         end
 173
 174         --
 175         -- Update formspec, infotext and node
 176         --
 177         local formspec = inactive_formspec
 178         local item_state
 179         local item_percent = 0
 180         if cookable then
 181                 item_percent = math.floor(src_time / cooked.time * 100)
 182                 if item_percent > 100 then
 183                         item_state = "100% (output full)"
 184                 else
 185                         item_state = item_percent .. "%"
 186                 end
 187         else
 188                 if srclist[1]:is_empty() then
 189                         item_state = "Empty"
 190                 else
 191                         item_state = "Not cookable"
 192                 end
 193         end
 194
 195         local fuel_state = "Empty"
 196         local active = "inactive "
 197         local result = false
 198
 199         if fuel_time <= fuel_totaltime and fuel_totaltime ~= 0 then
 200                 active = "active "
 201                 local fuel_percent = math.floor(fuel_time / fuel_totaltime * 100)
 202                 fuel_state = fuel_percent .. "%"
 203                 formspec = active_formspec(fuel_percent, item_percent)
 204                 swap_node(pos, "default:furnace_active")
 205                 -- make sure timer restarts automatically
 206                 result = true
 207         else
 208                 if not fuellist[1]:is_empty() then
 209                         fuel_state = "0%"
 210                 end
 211                 swap_node(pos, "default:furnace")
 212                 -- stop timer on the inactive furnace
 213                 local timer = minetest.get_node_timer(pos)
 214                 timer:stop()
 215         end
 216
 217         local infotext = "Furnace " .. active .. "(Item: " .. item_state .. "; Fuel: " .. fuel_state .. ")"
 218
 219         --
 220         -- Set meta values
 221         --
 222         meta:set_float("fuel_totaltime", fuel_totaltime)
 223         meta:set_float("fuel_time", fuel_time)
 224         meta:set_float("src_time", src_time)
 225         meta:set_string("formspec", formspec)
 226         meta:set_string("infotext", infotext)
 227
 228         return result
 229 end
 230
 231 --
 232 -- Node definitions
 233 --
 234
 235 minetest.register_node("default:furnace", {
 236         description = "Furnace",
 237         tiles = {
 238                 "default_furnace_top.png", "default_furnace_bottom.png",
 239                 "default_furnace_side.png", "default_furnace_side.png",
 240                 "default_furnace_side.png", "default_furnace_front.png"
 241         },
 242         paramtype2 = "facedir",
 243         groups = {cracky=2},
 244         legacy_facedir_simple = true,
 245         is_ground_content = false,
 246         sounds = default.node_sound_stone_defaults(),
 247
 248         can_dig = can_dig,
 249
 250         on_timer = furnace_node_timer,
 251
 252         on_construct = function(pos)
 253                 local meta = minetest.get_meta(pos)
 254                 meta:set_string("formspec", inactive_formspec)
 255                 local inv = meta:get_inventory()
 256                 inv:set_size('src', 1)
 257                 inv:set_size('fuel', 1)
 258                 inv:set_size('dst', 4)
 259         end,
 260
 261         on_metadata_inventory_move = function(pos)
 262                 local timer = minetest.get_node_timer(pos)
 263                 timer:start(1.0)
 264         end,
 265         on_metadata_inventory_put = function(pos)
 266                 -- start timer function, it will sort out whether furnace can burn or not.
 267                 local timer = minetest.get_node_timer(pos)
 268                 timer:start(1.0)
 269         end,
 270         on_blast = function(pos)
 271                 local drops = {}
 272                 default.get_inventory_drops(pos, "src", drops)
 273                 default.get_inventory_drops(pos, "fuel", drops)
 274                 default.get_inventory_drops(pos, "dst", drops)
 275                 drops[#drops+1] = "default:furnace"
 276                 minetest.remove_node(pos)
 277                 return drops
 278         end,
 279
 280         allow_metadata_inventory_put = allow_metadata_inventory_put,
 281         allow_metadata_inventory_move = allow_metadata_inventory_move,
 282         allow_metadata_inventory_take = allow_metadata_inventory_take,
 283 })
 284
 285 minetest.register_node("default:furnace_active", {
 286         description = "Furnace",
 287         tiles = {
 288                 "default_furnace_top.png", "default_furnace_bottom.png",
 289                 "default_furnace_side.png", "default_furnace_side.png",
 290                 "default_furnace_side.png",
 291                 {
 292                         image = "default_furnace_front_active.png",
 293                         backface_culling = false,
 294                         animation = {
 295                                 type = "vertical_frames",
 296                                 aspect_w = 16,
 297                                 aspect_h = 16,
 298                                 length = 1.5
 299                         },
 300                 }
 301         },
 302         paramtype2 = "facedir",
 303         light_source = 8,
 304         drop = "default:furnace",
 305         groups = {cracky=2, not_in_creative_inventory=1},
 306         legacy_facedir_simple = true,
 307         is_ground_content = false,
 308         sounds = default.node_sound_stone_defaults(),
 309         on_timer = furnace_node_timer,
 310
 311         can_dig = can_dig,
 312
 313         allow_metadata_inventory_put = allow_metadata_inventory_put,
 314         allow_metadata_inventory_move = allow_metadata_inventory_move,
 315         allow_metadata_inventory_take = allow_metadata_inventory_take,
 316 })
 317