mods/utility/furnace.lua

   1 local furnace = {}
   2
   3 function furnace.get_furnace_active_formspec(fuel_percent, item_percent)
   4         return "size[9,8.75]"..
   5                 "background[-0.19,-0.25;9.41,9.49;gui_hb_bg.png]"..
   6                 "listcolors[#8b8a89;#c9c3c6;#3e3d3e;#000000;#FFFFFF]"..
   7                 "list[context;src;2.75,0.5;1,1;]"..
   8                 "list[context;fuel;2.75,2.5;1,1;]"..
   9                 "image[2.75,1.5;1,1;default_furnace_fire_bg.png^[lowpart:"..
  10                 (fuel_percent)..":default_furnace_fire_fg.png]"..
  11                 "image[3.75,1.5;1,1;gui_furnace_arrow_bg.png^[lowpart:"..
  12                 (item_percent)..":gui_furnace_arrow_fg.png^[transformR270]"..
  13                 "list[context;dst;4.75,0.96;2,2;]"..
  14                 "list[current_player;main;0,4.5;9,1;]".. --hotbar
  15                 "list[current_player;main;0,6;9,3;9]".. --inventory
  16
  17                 "listring[context;dst]"..
  18                 "listring[current_player;main]"..
  19                 "listring[context;src]"..
  20                 "listring[current_player;main]"..
  21                 "listring[context;fuel]"..
  22                 "listring[current_player;main]"
  23                 --furnace.get_hotbar_bg(0, 4.25)
  24 end
  25
  26 function furnace.get_furnace_inactive_formspec()
  27         return "size[9,8.75]"..
  28                 "background[-0.19,-0.25;9.41,9.49;gui_hb_bg.png]"..
  29                 "listcolors[#8b8a89;#c9c3c6;#3e3d3e;#000000;#FFFFFF]"..
  30                 "list[context;src;2.75,0.5;1,1;]"..
  31                 "list[context;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[context;dst;4.75,0.96;2,2;]"..
  35                 "list[current_player;main;0,4.5;9,1;]"..
  36                 "list[current_player;main;0,6;9,3;9]"..
  37                 "listring[context;dst]"..
  38                 "listring[current_player;main]"..
  39                 "listring[context;src]"..
  40                 "listring[current_player;main]"..
  41                 "listring[context;fuel]"..
  42                 "listring[current_player;main]"
  43                 --furnace.get_hotbar_bg(0, 4.25)
  44 end
  45
  46 --
  47 -- Node callback functions that are the same for active and inactive furnace
  48 --
  49
  50 --[[
  51 local function can_dig(pos, player)
  52         local meta = minetest.get_meta(pos);
  53         local inv = meta:get_inventory()
  54         return inv:is_empty("fuel") and inv:is_empty("dst") and inv:is_empty("src")
  55 end
  56 ]]--
  57
  58 local function allow_metadata_inventory_put(pos, listname, index, stack, player)
  59         if minetest.is_protected(pos, player:get_player_name()) then
  60                 return 0
  61         end
  62         local meta = minetest.get_meta(pos)
  63         local inv = meta:get_inventory()
  64         if listname == "fuel" then
  65                 if minetest.get_craft_result({method="fuel", width=1, items={stack}}).time ~= 0 then
  66                         --if inv:is_empty("src") then
  67                         --      meta:set_string("infotext", "Furnace is empty")
  68                         --end
  69                         return stack:get_count()
  70                 else
  71                         return 0
  72                 end
  73         elseif listname == "src" then
  74                 return stack:get_count()
  75         elseif listname == "dst" then
  76                 return 0
  77         end
  78 end
  79
  80 local function allow_metadata_inventory_move(pos, from_list, from_index, to_list, to_index, count, player)
  81         local meta = minetest.get_meta(pos)
  82         local inv = meta:get_inventory()
  83         local stack = inv:get_stack(from_list, from_index)
  84         return allow_metadata_inventory_put(pos, to_list, to_index, stack, player)
  85 end
  86
  87 local function allow_metadata_inventory_take(pos, listname, index, stack, player)
  88         if minetest.is_protected(pos, player:get_player_name()) then
  89                 return 0
  90         end
  91         return stack:get_count()
  92 end
  93
  94 local function swap_node(pos, name)
  95         local node = minetest.get_node(pos)
  96         if node.name == name then
  97                 return
  98         end
  99         node.name = name
 100         minetest.swap_node(pos, node)
 101 end
 102
 103 local function furnace_node_timer(pos, elapsed)
 104         --
 105         -- Initialize metadata
 106         --
 107         local meta = minetest.get_meta(pos)
 108         local fuel_time = meta:get_float("fuel_time") or 0
 109         local src_time = meta:get_float("src_time") or 0
 110         local fuel_totaltime = meta:get_float("fuel_totaltime") or 0
 111
 112         local inv = meta:get_inventory()
 113         local srclist, fuellist
 114         local dst_full = false
 115
 116         local cookable, cooked
 117         local fuel
 118
 119         local update = true
 120         while elapsed > 0 and update do
 121                 update = false
 122
 123                 srclist = inv:get_list("src")
 124                 fuellist = inv:get_list("fuel")
 125
 126                 --
 127                 -- Cooking
 128                 --
 129
 130                 -- Check if we have cookable content
 131                 local aftercooked
 132                 cooked, aftercooked = minetest.get_craft_result({method = "cooking", width = 1, items = srclist})
 133                 cookable = cooked.time ~= 0
 134
 135                 local el = math.min(elapsed, fuel_totaltime - fuel_time)
 136                 if cookable then -- fuel lasts long enough, adjust el to cooking duration
 137                         el = math.min(el, cooked.time - src_time)
 138                 end
 139
 140                 -- Check if we have enough fuel to burn
 141                 if fuel_time < fuel_totaltime then
 142                         -- The furnace is currently active and has enough fuel
 143                         fuel_time = fuel_time + el
 144                         -- If there is a cookable item then check if it is ready yet
 145                         if cookable then
 146                                 src_time = src_time + el
 147                                 if src_time >= cooked.time then
 148                                         -- Place result in dst list if possible
 149                                         if inv:room_for_item("dst", cooked.item) then
 150                                                 inv:add_item("dst", cooked.item)
 151                                                 inv:set_stack("src", 1, aftercooked.items[1])
 152                                                 src_time = src_time - cooked.time
 153                                                 update = true
 154                                                 local dir = vector.divide(minetest.facedir_to_dir(minetest.get_node(pos).param2),-1.95)
 155                                                 local newpos = vector.add(pos,dir)
 156                                                 minetest.throw_experience(newpos, 1)
 157                                         else
 158                                                 dst_full = true
 159                                         end
 160                                 else
 161                                         -- Item could not be cooked: probably missing fuel
 162                                         update = true
 163                                 end
 164                         end
 165                 else
 166                         -- Furnace ran out of fuel
 167                         if cookable then
 168                                 -- We need to get new fuel
 169                                 local afterfuel
 170                                 fuel, afterfuel = minetest.get_craft_result({method = "fuel", width = 1, items = fuellist})
 171
 172                                 if fuel.time == 0 then
 173                                         -- No valid fuel in fuel list
 174                                         fuel_totaltime = 0
 175                                         src_time = 0
 176                                 else
 177                                         -- Take fuel from fuel list
 178                                         inv:set_stack("fuel", 1, afterfuel.items[1])
 179                                         -- Put replacements in dst list or drop them on the furnace.
 180                                         local replacements = fuel.replacements
 181                                         if replacements[1] then
 182                                                 local leftover = inv:add_item("dst", replacements[1])
 183                                                 if not leftover:is_empty() then
 184                                                         local above = vector.new(pos.x, pos.y + 1, pos.z)
 185                                                         local drop_pos = minetest.find_node_near(above, 1, {"air"}) or above
 186                                                         minetest.item_drop(replacements[1], nil, drop_pos)
 187                                                 end
 188                                         end
 189                                         update = true
 190                                         fuel_totaltime = fuel.time + (fuel_totaltime - fuel_time)
 191                                 end
 192                         else
 193                                 -- We don't need to get new fuel since there is no cookable item
 194                                 fuel_totaltime = 0
 195                                 src_time = 0
 196                         end
 197                         fuel_time = 0
 198                 end
 199
 200                 elapsed = elapsed - el
 201         end
 202
 203         if fuel and fuel_totaltime > fuel.time then
 204                 fuel_totaltime = fuel.time
 205         end
 206         if srclist and srclist[1]:is_empty() then
 207                 src_time = 0
 208         end
 209
 210         --
 211         -- Update formspec, infotext and node
 212         --
 213         local formspec
 214         local item_state
 215         local item_percent = 0
 216         if cookable then
 217                 item_percent = math.floor(src_time / cooked.time * 100)
 218                 if dst_full then
 219                         item_state = ("100% (output full)")
 220                 else
 221                         item_state = (item_percent)
 222                 end
 223         else
 224                 if srclist and not srclist[1]:is_empty() then
 225                         item_state = ("Not cookable")
 226                 else
 227                         item_state = ("Empty")
 228                 end
 229         end
 230
 231         local fuel_state = ("Empty")
 232         local active = false
 233         local result = false
 234
 235         if fuel_totaltime ~= 0 then
 236                 active = true
 237                 local fuel_percent = 100 - math.floor(fuel_time / fuel_totaltime * 100)
 238                 fuel_state = (fuel_percent)
 239                 formspec = furnace.get_furnace_active_formspec(fuel_percent, item_percent)
 240                 swap_node(pos, "utility:furnace_active")
 241                 -- make sure timer restarts automatically
 242                 result = true
 243         else
 244                 if fuellist and not fuellist[1]:is_empty() then
 245                         fuel_state = (0)
 246                 end
 247                 formspec = furnace.get_furnace_inactive_formspec()
 248                 swap_node(pos, "utility:furnace")
 249                 -- stop timer on the inactive furnace
 250                 minetest.get_node_timer(pos):stop()
 251         end
 252
 253
 254         --[[
 255         local infotext
 256         if active then
 257                 infotext = ("Furnace active")
 258         else
 259                 infotext = ("Furnace inactive")
 260         end
 261         infotext = infotext .. "\n" .. "Item:"..item_state.. "Fuel:"..fuel_state
 262         ]]--
 263         --
 264         -- Set meta values
 265         --
 266         meta:set_float("fuel_totaltime", fuel_totaltime)
 267         meta:set_float("fuel_time", fuel_time)
 268         meta:set_float("src_time", src_time)
 269         meta:set_string("formspec", formspec)
 270         --meta:set_string("infotext", infotext)
 271
 272         return result
 273 end
 274 --throw all items in furnace out on destroy
 275 local function destroy_furnace(pos)
 276         local meta = minetest.get_meta(pos)
 277         local inv = meta:get_inventory()
 278         local lists = inv:get_lists()
 279         for listname,_ in pairs(lists) do
 280                 local size = inv:get_size(listname)
 281                 for i = 1,size do
 282                         local stack = inv:get_stack(listname, i)
 283                         minetest.add_item(pos, stack)
 284                 end
 285         end
 286 end
 287
 288 --
 289 -- Node definitions
 290 --
 291
 292 minetest.register_node("utility:furnace", {
 293         description = ("Furnace"),
 294         tiles = {
 295                 "furnace_top.png", "furnace_bottom.png",
 296                 "furnace_side.png", "furnace_side.png",
 297                 "furnace_side.png", "furnace_front.png"
 298         },
 299         paramtype2 = "facedir",
 300         groups = {stone=2},
 301         legacy_facedir_simple = true,
 302         is_ground_content = false,
 303         sounds = main.stoneSound(),
 304
 305         --can_dig = can_dig,
 306
 307         on_timer = furnace_node_timer,
 308
 309         on_construct = function(pos)
 310                 local meta = minetest.get_meta(pos)
 311                 local inv = meta:get_inventory()
 312                 inv:set_size('src', 1)
 313                 inv:set_size('fuel', 1)
 314                 inv:set_size('dst', 4)
 315                 furnace_node_timer(pos, 0)
 316         end,
 317
 318         on_metadata_inventory_move = function(pos)
 319                 local timer = minetest.get_node_timer(pos)
 320                 if timer:is_started() == false then
 321                         timer:start(1.0)
 322                 end
 323         end,
 324         on_metadata_inventory_put = function(pos)
 325                 -- start timer function, it will sort out whether furnace can burn or not.
 326                 local timer = minetest.get_node_timer(pos)
 327                 if timer:is_started() == false then
 328                         timer:start(1.0)
 329                 end
 330         end,
 331         --[[
 332         on_blast = function(pos)
 333                 local drops = {}
 334                 furnace.get_inventory_drops(pos, "src", drops)
 335                 furnace.get_inventory_drops(pos, "fuel", drops)
 336                 furnace.get_inventory_drops(pos, "dst", drops)
 337                 drops[#drops+1] = "utility:furnace"
 338                 minetest.remove_node(pos)
 339                 return drops
 340         end,
 341         ]]--
 342         on_destruct = function(pos)
 343                 destroy_furnace(pos)
 344         end,
 345         allow_metadata_inventory_put = allow_metadata_inventory_put,
 346         allow_metadata_inventory_move = allow_metadata_inventory_move,
 347         allow_metadata_inventory_take = allow_metadata_inventory_take,
 348         on_metadata_inventory_take = on_metadata_inventory_take,
 349 })
 350
 351 minetest.register_node("utility:furnace_active", {
 352         description = ("Furnace"),
 353         tiles = {
 354                 "furnace_top.png", "furnace_bottom.png",
 355                 "furnace_side.png", "furnace_side.png",
 356                 "furnace_side.png",
 357                 {
 358                         image = "furnace_front_active.png",
 359                         backface_culling = false,
 360                         animation = {
 361                                 type = "vertical_frames",
 362                                 aspect_w = 16,
 363                                 aspect_h = 16,
 364                                 length = 1.5
 365                         },
 366                 }
 367         },
 368         paramtype2 = "facedir",
 369         light_source = 8,
 370         drop = "utility:furnace",
 371         groups = {stone=2},
 372         legacy_facedir_simple = true,
 373         is_ground_content = false,
 374         sounds = main.stoneSound(),
 375         on_timer = furnace_node_timer,
 376
 377         --can_dig = can_dig,
 378
 379         allow_metadata_inventory_put = allow_metadata_inventory_put,
 380         allow_metadata_inventory_move = allow_metadata_inventory_move,
 381         allow_metadata_inventory_take = allow_metadata_inventory_take,
 382         on_metadata_inventory_take = on_metadata_inventory_take,
 383         on_destruct = function(pos)
 384                 destroy_furnace(pos)
 385         end,
 386 })
 387
 388 minetest.register_craft({
 389         output = "utility:furnace",
 390         recipe = {
 391                 {"main:cobble", "main:cobble", "main:cobble"},
 392                 {"main:cobble", "",            "main:cobble"},
 393                 {"main:cobble", "main:cobble", "main:cobble"},
 394         }
 395 })