shop.lua

   1 minetest.register_on_mods_loaded(function()
   2         for nodename, nodedef in pairs(minetest.registered_nodes) do
   3                 if nodename:find("mcl_signs:") then
   4                         minetest.override_item(nodename, {
   5                                 on_rightclick = function(pos, node, player, itemstack, pointed_thing)
   6                                         if pos.y < 5000 then return end
   7                                         local text = minetest.get_meta(pos):get_string("text") or ""
   8                                         local lines = text:split("\n")
   9                                         local action, amount, price = lines[1], lines[2], lines[3]
  10                                         print(action, amount, price)
  11                                         if not (action and amount and price) then return end
  12                                         price = string.gsub(price, "%$", "")
  13                                         price = tonumber(price)
  14                                         amount = string.gsub(amount, "x", "")
  15                                         amount = tonumber(amount)
  16                                         print(action, amount, price)
  17                                         if not (amount and price) then return end
  18                                         local func, frameoffset
  19                                         if action == "Buy" then
  20                                                 func, frameoffset = skycraft.buy, -1
  21                                         elseif action == "Sell" then
  22                                                 func, frameoffset = skycraft.sell, 1
  23                                         else
  24                                                 return
  25                                         end
  26                                         local framepos = vector.add(pos, {x = 0, y = frameoffset, z = 0})
  27                                         if minetest.get_node(framepos).name ~= "mcl_itemframes:item_frame" then return end
  28                                         local inv = minetest.get_meta(framepos):get_inventory()
  29                                         if inv:is_empty("main") then return end
  30                                         local itemstack = inv:get_stack("main", 1)
  31                                         func(player, itemstack:get_name() .. " " .. tostring(amount), price)
  32                                 end,
  33                         })
  34                 end
  35         end
  36 end)