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 --
  94 -- Node definitions
  95 --
  96
  97 minetest.register_node("default:furnace", {
  98         description = "Furnace",
  99         tiles = {
 100                 "default_furnace_top.png", "default_furnace_bottom.png",
 101                 "default_furnace_side.png", "default_furnace_side.png",
 102                 "default_furnace_side.png", "default_furnace_front.png"
 103         },
 104         paramtype2 = "facedir",
 105         groups = {cracky=2},
 106         legacy_facedir_simple = true,
 107         is_ground_content = false,
 108         sounds = default.node_sound_stone_defaults(),
 109
 110         can_dig = can_dig,
 111
 112         allow_metadata_inventory_put = allow_metadata_inventory_put,
 113         allow_metadata_inventory_move = allow_metadata_inventory_move,
 114         allow_metadata_inventory_take = allow_metadata_inventory_take,
 115 })
 116
 117 minetest.register_node("default:furnace_active", {
 118         description = "Furnace",
 119         tiles = {
 120                 "default_furnace_top.png", "default_furnace_bottom.png",
 121                 "default_furnace_side.png", "default_furnace_side.png",
 122                 "default_furnace_side.png",
 123                 {
 124                         image = "default_furnace_front_active.png",
 125                         backface_culling = false,
 126                         animation = {
 127                                 type = "vertical_frames",
 128                                 aspect_w = 16,
 129                                 aspect_h = 16,
 130                                 length = 1.5
 131                         },
 132                 }
 133         },
 134         paramtype2 = "facedir",
 135         light_source = 8,
 136         drop = "default:furnace",
 137         groups = {cracky=2, not_in_creative_inventory=1},
 138         legacy_facedir_simple = true,
 139         is_ground_content = false,
 140         sounds = default.node_sound_stone_defaults(),
 141
 142         can_dig = can_dig,
 143
 144         allow_metadata_inventory_put = allow_metadata_inventory_put,
 145         allow_metadata_inventory_move = allow_metadata_inventory_move,
 146         allow_metadata_inventory_take = allow_metadata_inventory_take,
 147 })
 148
 149 --
 150 -- ABM
 151 --
 152
 153 local function swap_node(pos, name)
 154         local node = minetest.get_node(pos)
 155         if node.name == name then
 156                 return
 157         end
 158         node.name = name
 159         minetest.swap_node(pos, node)
 160 end
 161
 162 minetest.register_abm({
 163         nodenames = {"default:furnace", "default:furnace_active"},
 164         interval = 1.0,
 165         chance = 1,
 166         action = function(pos, node, active_object_count, active_object_count_wider)
 167                 --
 168                 -- Inizialize metadata
 169                 --
 170                 local meta = minetest.get_meta(pos)
 171                 local fuel_time = meta:get_float("fuel_time") or 0
 172                 local src_time = meta:get_float("src_time") or 0
 173                 local fuel_totaltime = meta:get_float("fuel_totaltime") or 0
 174
 175                 --
 176                 -- Inizialize inventory
 177                 --
 178                 local inv = meta:get_inventory()
 179                 for listname, size in pairs({
 180                                 src = 1,
 181                                 fuel = 1,
 182                                 dst = 4,
 183                 }) do
 184                         if inv:get_size(listname) ~= size then
 185                                 inv:set_size(listname, size)
 186                         end
 187                 end
 188                 local srclist = inv:get_list("src")
 189                 local fuellist = inv:get_list("fuel")
 190                 local dstlist = inv:get_list("dst")
 191
 192                 --
 193                 -- Cooking
 194                 --
 195
 196                 -- Check if we have cookable content
 197                 local cooked, aftercooked = minetest.get_craft_result({method = "cooking", width = 1, items = srclist})
 198                 local cookable = true
 199
 200                 if cooked.time == 0 then
 201                         cookable = false
 202                 end
 203
 204                 -- Check if we have enough fuel to burn
 205                 if fuel_time < fuel_totaltime then
 206                         -- The furnace is currently active and has enough fuel
 207                         fuel_time = fuel_time + 1
 208
 209                         -- If there is a cookable item then check if it is ready yet
 210                         if cookable then
 211                                 src_time = src_time + 1
 212                                 if src_time >= cooked.time then
 213                                         -- Place result in dst list if possible
 214                                         if inv:room_for_item("dst", cooked.item) then
 215                                                 inv:add_item("dst", cooked.item)
 216                                                 inv:set_stack("src", 1, aftercooked.items[1])
 217                                                 src_time = 0
 218                                         end
 219                                 end
 220                         end
 221                 else
 222                         -- Furnace ran out of fuel
 223                         if cookable then
 224                                 -- We need to get new fuel
 225                                 local fuel, afterfuel = minetest.get_craft_result({method = "fuel", width = 1, items = fuellist})
 226
 227                                 if fuel.time == 0 then
 228                                         -- No valid fuel in fuel list
 229                                         fuel_totaltime = 0
 230                                         fuel_time = 0
 231                                         src_time = 0
 232                                 else
 233                                         -- Take fuel from fuel list
 234                                         inv:set_stack("fuel", 1, afterfuel.items[1])
 235
 236                                         fuel_totaltime = fuel.time
 237                                         fuel_time = 0
 238
 239                                 end
 240                         else
 241                                 -- We don't need to get new fuel since there is no cookable item
 242                                 fuel_totaltime = 0
 243                                 fuel_time = 0
 244                                 src_time = 0
 245                         end
 246                 end
 247
 248                 --
 249                 -- Update formspec, infotext and node
 250                 --
 251                 local formspec = inactive_formspec
 252                 local item_state = ""
 253                 local item_percent = 0
 254                 if cookable then
 255                         item_percent =  math.floor(src_time / cooked.time * 100)
 256                         item_state = item_percent .. "%"
 257                 else
 258                         if srclist[1]:is_empty() then
 259                                 item_state = "Empty"
 260                         else
 261                                 item_state = "Not cookable"
 262                         end
 263                 end
 264
 265                 local fuel_state = "Empty"
 266                 local active = "inactive "
 267                 if fuel_time <= fuel_totaltime and fuel_totaltime ~= 0 then
 268                         active = "active "
 269                         local fuel_percent = math.floor(fuel_time / fuel_totaltime * 100)
 270                         fuel_state = fuel_percent .. "%"
 271                         formspec = active_formspec(fuel_percent, item_percent)
 272                         swap_node(pos, "default:furnace_active")
 273                 else
 274                         if not fuellist[1]:is_empty() then
 275                                 fuel_state = "0%"
 276                         end
 277                         swap_node(pos, "default:furnace")
 278                 end
 279
 280                 local infotext =  "Furnace " .. active .. "(Item: " .. item_state .. "; Fuel: " .. fuel_state .. ")"
 281
 282                 --
 283                 -- Set meta values
 284                 --
 285                 meta:set_float("fuel_totaltime", fuel_totaltime)
 286                 meta:set_float("fuel_time", fuel_time)
 287                 meta:set_float("src_time", src_time)
 288                 meta:set_string("formspec", formspec)
 289                 meta:set_string("infotext", infotext)
 290         end,
 291 })