write something there

mods/researcher/src/research_table.lua

@@ -0,0 +1,178 @@
+-- Function to get formspec string
+local function get_formspec(item)
+  -- Set item info string
+  local iteminfo = [[
+    box[1,2.75;6,0.001;#00000099]
+    hypertext[2.3,3.15;4,1.5;;<global halign=center>(place item above to set focus)]
+  ]]
+  if item then
+    local description = minetest.registered_items[item] and minetest.registered_items[item].description:split("\n")[1]
+    local groups = researcher.registered_items[item] and (function()
+      local str = ""
+      local grouplist = {}
+      for group,_ in pairs(researcher.registered_items[item].groups) do
+        table.insert(grouplist,group)
+      end
+      table.sort(grouplist)
+      return table.concat(grouplist,", ")
+    end)()
+    iteminfo = string.format([[
+      box[1,2.75;6,0.001;#00000099]
+      hypertext[2.3,3;4,0.5;;<global halign=center size=24><b>%s</b>]
+      hypertext[2.3,3.35;4,1.5;;<global halign=center size=18>%s]
+    ]],
+    description or "???",
+    groups or "(groups unknown)")
+  end
+
+  return string.format([[
+      size[8,9.1]
+      box[0,0;7.8,5;#00000040]
+
+      image[3.1,0.575;2,2;researcher_research_inventory_decor_%s.png]
+      list[context;focus;3.5,1;1,1;0]
+      listring[current_player;main]
+      listring[context;focus]
+
+      %s
+
+      image[0,5.2;1,1;researcher_gui_hb_bg.png]
+      image[1,5.2;1,1;researcher_gui_hb_bg.png]
+      image[2,5.2;1,1;researcher_gui_hb_bg.png]
+      image[3,5.2;1,1;researcher_gui_hb_bg.png]
+      image[4,5.2;1,1;researcher_gui_hb_bg.png]
+      image[5,5.2;1,1;researcher_gui_hb_bg.png]
+      image[6,5.2;1,1;researcher_gui_hb_bg.png]
+      image[7,5.2;1,1;researcher_gui_hb_bg.png]
+      list[current_player;main;0,5.2;8,1;]
+      list[current_player;main;0,6.35;8,3;8]
+    ]],
+    item and "active" or "inactive",
+    iteminfo)
+end
+
+-- Function for refreshing infotext when node meta inventory changes
+local function update_metadata(pos)
+  local meta = minetest.get_meta(pos)
+  local item = meta:get_inventory():get_stack("focus",1)
+  if item and not item:is_empty() then
+    local iname = item:get_name()
+    item = minetest.registered_items[iname]
+    description = ""
+    if item and item.description then
+      meta:set_string("infotext","Research Table: " .. item.description:split("\n")[1])
+    end
+    meta:set_string("formspec",get_formspec(iname))
+  else
+    meta:set_string("formspec",get_formspec(nil))
+    meta:set_string("infotext","Research Table")
+  end
+end
+
+-- Register research table node
+minetest.register_node("researcher:research_table",{
+  -- Node definition fields
+  description = "Research Table",
+  short_description = "Research Table",
+  drawtype = "mesh",
+  mesh = "research_table.obj",
+  tiles = {
+    { name = "researcher_research_table_frame.png" },
+    { name = "researcher_research_table_surface.png" },
+  },
+  paramtype2 = "4dir",
+  stack_max = 1,
+  sounds = (function()
+    if researcher.dependencies.default then
+      return default.node_sound_wood_defaults()
+    elseif researcher.dependencies.mcl_sounds then
+      return mcl_sounds.node_sound_wood_defaults()
+    else
+      return nil -- no specific sounds
+    end
+  end)(),
+
+  -- Set research table groups
+  groups = {
+    oddly_breakable_by_hand = 1,
+  },
+
+  -- Initialize research table data
+  on_construct = function(pos)
+    -- Set inventory size
+    local meta = minetest.get_meta(pos)
+    local inventory = meta:get_inventory()
+		inventory:set_size("focus", 1)
+
+    -- Set infotext
+    meta:set_string("infotext","Research Table")
+
+    -- Set meta formspec
+    meta:set_string("formspec",get_formspec(nil))
+  end,
+
+  -- Drop inventory contents when destroyed
+  on_destruct = function(pos)
+    local item = minetest.get_meta(pos):get_inventory():get_stack("focus",1)
+    if item and not item:is_empty() then
+      minetest.add_item(pos,item)
+    end
+  end,
+
+  -- Update infotext when inventory changes
+  on_metadata_inventory_move = update_metadata,
+  on_metadata_inventory_take = update_metadata,
+  on_metadata_inventory_put = update_metadata,
+})
+
+-- Register research table crafting recipe
+minetest.register_craft({
+  output = "researcher:research_table",
+  recipe = {
+    {"group:stone", "group:stone", "group:stone"},
+    {"group:wood",  "group:wood",  "group:wood"},
+    {"group:wood",  "",            "group:wood"},
+  },
+})
+
+-- Register ABM for activation particles
+minetest.register_abm({
+  label = "Researcher: Research Table Activation Particles",
+  nodenames = {"researcher:research_table"},
+  interval = 4,
+  chance = 1,
+  catch_up = false,
+  action = function(pos)
+    -- Do nothing if research table is empty
+    if minetest.get_meta(pos):get_inventory():get_stack("focus",1):is_empty() then
+      return
+    end
+
+    -- Show item particles to nearby players
+    local radius = researcher.settings.research_table_player_radius
+    for object in minetest.objects_in_area(pos:add(-2),pos:add(2)) do
+      if object:is_player() then
+        minetest.add_particlespawner({
+          playername = object:get_player_name(),
+          amount = 16,
+          time = 4,
+          pos = {
+            min = pos:add(vector.new(-0.6,0,-0.6)),
+            max = pos:add(vector.new(0.6,0,0.6)),
+          },
+          minsize = 1,
+          maxsize = 1.5,
+          minvel = { x = 0, y = 0.05, z = 0 },
+          maxvel = { x = 0, y = 0.1, z = 0 },
+          minacc = { x = 0, y = 0.1, z = 0 },
+          maxacc = { x = 0, y = 0.2, z = 0 },
+          minexptime = 4.5,
+          maxexptime = 3,
+          texture = "plus.png^[colorize:#ffff77^[opacity:180",
+          glow = 14,
+          collisiondetection = false,
+        })
+      end
+    end
+  end,
+})