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