mods/default/furnace.lua

   1
   2 --
   3 -- Formspecs
   4 --
   5
   6 function default.get_furnace_active_formspec(fuel_percent, item_percent)
   7         return "size[8,8.5]"..
   8                 "list[context;src;2.75,0.5;1,1;]"..
   9                 "list[context;fuel;2.75,2.5;1,1;]"..
  10                 "image[2.75,1.5;1,1;default_furnace_fire_bg.png^[lowpart:"..
  11                 (100-fuel_percent)..":default_furnace_fire_fg.png]"..
  12                 "image[3.75,1.5;1,1;gui_furnace_arrow_bg.png^[lowpart:"..
  13                 (item_percent)..":gui_furnace_arrow_fg.png^[transformR270]"..
  14                 "list[context;dst;4.75,0.96;2,2;]"..
  15                 "list[current_player;main;0,4.25;8,1;]"..
  16                 "list[current_player;main;0,5.5;8,3;8]"..
  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                 default.get_hotbar_bg(0, 4.25)
  24 end
  25
  26 function default.get_furnace_inactive_formspec()
  27         return "size[8,8.5]"..
  28                 "list[context;src;2.75,0.5;1,1;]"..
  29                 "list[context;fuel;2.75,2.5;1,1;]"..
  30                 "image[2.75,1.5;1,1;default_furnace_fire_bg.png]"..
  31                 "image[3.75,1.5;1,1;gui_furnace_arrow_bg.png^[transformR270]"..
  32                 "list[context;dst;4.75,0.96;2,2;]"..
  33                 "list[current_player;main;0,4.25;8,1;]"..
  34                 "list[current_player;main;0,5.5;8,3;8]"..
  35                 "listring[context;dst]"..
  36                 "listring[current_player;main]"..
  37                 "listring[context;src]"..
  38                 "listring[current_player;main]"..
  39                 "listring[context;fuel]"..
  40                 "listring[current_player;main]"..
  41                 default.get_hotbar_bg(0, 4.25)
  42 end
  43
  44 --
  45 -- Node callback functions that are the same for active and inactive furnace
  46 --
  47
  48 local function can_dig(pos, player)
  49         local meta = minetest.get_meta(pos);
  50         local inv = meta:get_inventory()
  51         return inv:is_empty("fuel") and inv:is_empty("dst") and inv:is_empty("src")
  52 end
  53
  54 local function allow_metadata_inventory_put(pos, listname, index, stack, player)
  55         if minetest.is_protected(pos, player:get_player_name()) then
  56                 return 0
  57         end
  58         local meta = minetest.get_meta(pos)
  59         local inv = meta:get_inventory()
  60         if listname == "fuel" then
  61                 if minetest.get_craft_result({method="fuel", width=1, items={stack}}).time ~= 0 then
  62                         if inv:is_empty("src") then
  63                                 meta:set_string("infotext", "Furnace is empty")
  64                         end
  65                         return stack:get_count()
  66                 else
  67                         return 0
  68                 end
  69         elseif listname == "src" then
  70                 return stack:get_count()
  71         elseif listname == "dst" then
  72                 return 0
  73         end
  74 end
  75
  76 local function allow_metadata_inventory_move(pos, from_list, from_index, to_list, to_index, count, player)
  77         local meta = minetest.get_meta(pos)
  78         local inv = meta:get_inventory()
  79         local stack = inv:get_stack(from_list, from_index)
  80         return allow_metadata_inventory_put(pos, to_list, to_index, stack, player)
  81 end
  82
  83 local function allow_metadata_inventory_take(pos, listname, index, stack, player)
  84         if minetest.is_protected(pos, player:get_player_name()) then
  85                 return 0
  86         end
  87         return stack:get_count()
  88 end
  89
  90 local function swap_node(pos, name)
  91         local node = minetest.get_node(pos)
  92         if node.name == name then
  93                 return
  94         end
  95         node.name = name
  96         minetest.swap_node(pos, node)
  97 end
  98
  99 local function furnace_node_timer(pos, elapsed)
 100         --
 101         -- Inizialize metadata
 102         --
 103         local meta = minetest.get_meta(pos)
 104         local fuel_time = meta:get_float("fuel_time") or 0
 105         local src_time = meta:get_float("src_time") or 0
 106         local fuel_totaltime = meta:get_float("fuel_totaltime") or 0
 107
 108         local inv = meta:get_inventory()
 109         local srclist, fuellist
 110
 111         local cookable, cooked
 112         local fuel
 113
 114         local update = true
 115         while elapsed > 0 and update do
 116                 update = false
 117
 118                 srclist = inv:get_list("src")
 119                 fuellist = inv:get_list("fuel")
 120
 121                 --
 122                 -- Cooking
 123                 --
 124
 125                 -- Check if we have cookable content
 126                 local aftercooked
 127                 cooked, aftercooked = minetest.get_craft_result({method = "cooking", width = 1, items = srclist})
 128                 cookable = cooked.time ~= 0
 129
 130                 local el = math.min(elapsed, fuel_totaltime - fuel_time)
 131                 if cookable then -- fuel lasts long enough, adjust el to cooking duration
 132                         el = math.min(el, cooked.time - src_time)
 133                 end
 134
 135                 -- Check if we have enough fuel to burn
 136                 if fuel_time < fuel_totaltime then
 137                         -- The furnace is currently active and has enough fuel
 138                         fuel_time = fuel_time + el
 139                         -- If there is a cookable item then check if it is ready yet
 140                         if cookable then
 141                                 src_time = src_time + el
 142                                 if src_time >= cooked.time then
 143                                         -- Place result in dst list if possible
 144                                         if inv:room_for_item("dst", cooked.item) then
 145                                                 inv:add_item("dst", cooked.item)
 146                                                 inv:set_stack("src", 1, aftercooked.items[1])
 147                                                 src_time = src_time - cooked.time
 148                                                 update = true
 149                                         end
 150                                 else
 151                                         -- Item could not be cooked: probably missing fuel
 152                                         update = true
 153                                 end
 154                         end
 155                 else
 156                         -- Furnace ran out of fuel
 157                         if cookable then
 158                                 -- We need to get new fuel
 159                                 local afterfuel
 160                                 fuel, afterfuel = minetest.get_craft_result({method = "fuel", width = 1, items = fuellist})
 161
 162                                 if fuel.time == 0 then
 163                                         -- No valid fuel in fuel list
 164                                         fuel_totaltime = 0
 165                                         src_time = 0
 166                                 else
 167                                         -- Take fuel from fuel list
 168                                         inv:set_stack("fuel", 1, afterfuel.items[1])
 169                                         update = true
 170                                         fuel_totaltime = fuel.time + (fuel_totaltime - fuel_time)
 171                                 end
 172                         else
 173                                 -- We don't need to get new fuel since there is no cookable item
 174                                 fuel_totaltime = 0
 175                                 src_time = 0
 176                         end
 177                         fuel_time = 0
 178                 end
 179
 180                 elapsed = elapsed - el
 181         end
 182
 183         if fuel and fuel_totaltime > fuel.time then
 184                 fuel_totaltime = fuel.time
 185         end
 186         if srclist[1]:is_empty() then
 187                 src_time = 0
 188         end
 189
 190         --
 191         -- Update formspec, infotext and node
 192         --
 193         local formspec
 194         local item_state
 195         local item_percent = 0
 196         if cookable then
 197                 item_percent = math.floor(src_time / cooked.time * 100)
 198                 if item_percent > 100 then
 199                         item_state = "100% (output full)"
 200                 else
 201                         item_state = item_percent .. "%"
 202                 end
 203         else
 204                 if srclist[1]:is_empty() then
 205                         item_state = "Empty"
 206                 else
 207                         item_state = "Not cookable"
 208                 end
 209         end
 210
 211         local fuel_state = "Empty"
 212         local active = "inactive"
 213         local result = false
 214
 215         if fuel_totaltime ~= 0 then
 216                 active = "active"
 217                 local fuel_percent = math.floor(fuel_time / fuel_totaltime * 100)
 218                 fuel_state = fuel_percent .. "%"
 219                 formspec = default.get_furnace_active_formspec(fuel_percent, item_percent)
 220                 swap_node(pos, "default:furnace_active")
 221                 -- make sure timer restarts automatically
 222                 result = true
 223         else
 224                 if not fuellist[1]:is_empty() then
 225                         fuel_state = "0%"
 226                 end
 227                 formspec = default.get_furnace_inactive_formspec()
 228                 swap_node(pos, "default:furnace")
 229                 -- stop timer on the inactive furnace
 230                 minetest.get_node_timer(pos):stop()
 231         end
 232
 233         local infotext = "Furnace " .. active .. "\n(Item: " .. item_state ..
 234                 "; Fuel: " .. fuel_state .. ")"
 235
 236         --
 237         -- Set meta values
 238         --
 239         meta:set_float("fuel_totaltime", fuel_totaltime)
 240         meta:set_float("fuel_time", fuel_time)
 241         meta:set_float("src_time", src_time)
 242         meta:set_string("formspec", formspec)
 243         meta:set_string("infotext", infotext)
 244
 245         return result
 246 end
 247
 248 --
 249 -- Node definitions
 250 --
 251
 252 minetest.register_node("default:furnace", {
 253         description = "Furnace",
 254         tiles = {
 255                 "default_furnace_top.png", "default_furnace_bottom.png",
 256                 "default_furnace_side.png", "default_furnace_side.png",
 257                 "default_furnace_side.png", "default_furnace_front.png"
 258         },
 259         paramtype2 = "facedir",
 260         groups = {cracky=2},
 261         legacy_facedir_simple = true,
 262         is_ground_content = false,
 263         sounds = default.node_sound_stone_defaults(),
 264
 265         can_dig = can_dig,
 266
 267         on_timer = furnace_node_timer,
 268
 269         on_construct = function(pos)
 270                 local meta = minetest.get_meta(pos)
 271                 meta:set_string("formspec", default.get_furnace_inactive_formspec())
 272                 local inv = meta:get_inventory()
 273                 inv:set_size('src', 1)
 274                 inv:set_size('fuel', 1)
 275                 inv:set_size('dst', 4)
 276         end,
 277
 278         on_metadata_inventory_move = function(pos)
 279                 minetest.get_node_timer(pos):start(1.0)
 280         end,
 281         on_metadata_inventory_put = function(pos)
 282                 -- start timer function, it will sort out whether furnace can burn or not.
 283                 minetest.get_node_timer(pos):start(1.0)
 284         end,
 285         on_blast = function(pos)
 286                 local drops = {}
 287                 default.get_inventory_drops(pos, "src", drops)
 288                 default.get_inventory_drops(pos, "fuel", drops)
 289                 default.get_inventory_drops(pos, "dst", drops)
 290                 drops[#drops+1] = "default:furnace"
 291                 minetest.remove_node(pos)
 292                 return drops
 293         end,
 294
 295         allow_metadata_inventory_put = allow_metadata_inventory_put,
 296         allow_metadata_inventory_move = allow_metadata_inventory_move,
 297         allow_metadata_inventory_take = allow_metadata_inventory_take,
 298 })
 299
 300 minetest.register_node("default:furnace_active", {
 301         description = "Furnace",
 302         tiles = {
 303                 "default_furnace_top.png", "default_furnace_bottom.png",
 304                 "default_furnace_side.png", "default_furnace_side.png",
 305                 "default_furnace_side.png",
 306                 {
 307                         image = "default_furnace_front_active.png",
 308                         backface_culling = false,
 309                         animation = {
 310                                 type = "vertical_frames",
 311                                 aspect_w = 16,
 312                                 aspect_h = 16,
 313                                 length = 1.5
 314                         },
 315                 }
 316         },
 317         paramtype2 = "facedir",
 318         light_source = 8,
 319         drop = "default:furnace",
 320         groups = {cracky=2, not_in_creative_inventory=1},
 321         legacy_facedir_simple = true,
 322         is_ground_content = false,
 323         sounds = default.node_sound_stone_defaults(),
 324         on_timer = furnace_node_timer,
 325
 326         can_dig = can_dig,
 327
 328         allow_metadata_inventory_put = allow_metadata_inventory_put,
 329         allow_metadata_inventory_move = allow_metadata_inventory_move,
 330         allow_metadata_inventory_take = allow_metadata_inventory_take,
 331 })