d-stephane
2019-08-26 768fbecc641325eedcca6f1abcf5d1aec4a7e4f1
technic/machines/register/grinder.lua
@@ -1,184 +1,9 @@
local S = technic.getter
function technic.register_grinder(data)
   local tier = data.tier
   local ltier = string.lower(tier)
   local tube = {
      insert_object = function(pos, node, stack, direction)
         local meta = minetest.get_meta(pos)
         local inv = meta:get_inventory()
         return inv:add_item("src", stack)
      end,
      can_insert = function(pos, node, stack, direction)
         local meta = minetest.get_meta(pos)
         local inv = meta:get_inventory()
         return inv:room_for_item("src", stack)
      end,
      connect_sides = {left=1, right=1, back=1, top=1, bottom=1},
   }
   local formspec =
      "invsize[8,10;]"..
      "list[current_name;src;3,1;1,1;]"..
      "list[current_name;dst;5,1;2,2;]"..
      "list[current_player;main;0,6;8,4;]"..
      "label[0,0;"..tier.." Grinder]"
   if data.upgrade then
      formspec = formspec..
         "list[current_name;upgrade1;1,4;1,1;]"..
         "list[current_name;upgrade2;2,4;1,1;]"..
         "label[1,5;Upgrade Slots]"
   end
   data.formspec = formspec
   minetest.register_node("technic:"..ltier.."_grinder", {
      description = tier.." Grinder",
      tiles = {"technic_"..ltier.."_grinder_top.png",  "technic_"..ltier.."_grinder_bottom.png",
          "technic_"..ltier.."_grinder_side.png", "technic_"..ltier.."_grinder_side.png",
          "technic_"..ltier.."_grinder_side.png", "technic_"..ltier.."_grinder_front.png"},
      paramtype2 = "facedir",
      groups = {cracky=2, tubedevice=1, tubedevice_receiver=1},
      technic = data,
      tube = tube,
      legacy_facedir_simple = true,
      sounds = default.node_sound_wood_defaults(),
      on_construct = function(pos)
         local node = minetest.get_node(pos)
         local meta = minetest.get_meta(pos)
         local data = minetest.registered_nodes[node.name].technic
         meta:set_string("infotext", data.tier.." Grinder")
         meta:set_int("tube_time",  0)
         meta:set_string("formspec", data.formspec)
         local inv = meta:get_inventory()
         inv:set_size("src", 1)
         inv:set_size("dst", 4)
         inv:set_size("upgrade1", 1)
         inv:set_size("upgrade2", 1)
      end,
      can_dig = function(pos,player)
         local meta = minetest.get_meta(pos);
         local inv = meta:get_inventory()
         if not inv:is_empty("src") or not inv:is_empty("dst") or
            not inv:is_empty("upgrade1") or not inv:is_empty("upgrade2") then
            minetest.chat_send_player(player:get_player_name(),
                  "Machine cannot be removed because it is not empty");
            return false
         else
            return true
         end
      end,
   })
   minetest.register_node("technic:"..ltier.."_grinder_active",{
      description = tier.." Grinder",
      tiles = {"technic_"..ltier.."_grinder_top.png",  "technic_"..ltier.."_grinder_bottom.png",
          "technic_"..ltier.."_grinder_side.png", "technic_"..ltier.."_grinder_side.png",
          "technic_"..ltier.."_grinder_side.png", "technic_"..ltier.."_grinder_front_active.png"},
      paramtype2 = "facedir",
      groups = {cracky=2, tubedevice=1, tubedevice_receiver=1, not_in_creative_inventory=1},
      legacy_facedir_simple = true,
      sounds = default.node_sound_wood_defaults(),
      technic = data,
      tube = tube,
      can_dig = function(pos,player)
         local meta = minetest.get_meta(pos)
         local inv = meta:get_inventory()
         if not inv:is_empty("src") or not inv:is_empty("dst") or
            not inv:is_empty("upgrade1") or not inv:is_empty("upgrade2") then
            minetest.chat_send_player(player:get_player_name(),
                  "Machine cannot be removed because it is not empty");
            return false
         else
            return true
         end
      end,
      -- These three makes sure upgrades are not moved in or out while the grinder is active.
      allow_metadata_inventory_put = function(pos, listname, index, stack, player)
         if listname == "src" or listname == "dst" then
            return stack:get_stack_max()
         else
            return 0 -- Disallow the move
         end
      end,
      allow_metadata_inventory_take = function(pos, listname, index, stack, player)
         if listname == "src" or listname == "dst" then
            return stack:get_stack_max()
         else
            return 0 -- Disallow the move
         end
      end,
      allow_metadata_inventory_move = function(pos, from_list, to_list, to_list, to_index, count, player)
         return 0
      end,
   })
   minetest.register_abm({
      nodenames = {"technic:"..ltier.."_grinder","technic:"..ltier.."_grinder_active"},
      interval = 1,
      chance   = 1,
      action = function(pos, node, active_object_count, active_object_count_wider)
         local data         = minetest.registered_nodes[node.name].technic
         local meta         = minetest.get_meta(pos)
         local inv    = meta:get_inventory()
         local eu_input     = meta:get_int(data.tier.."_EU_input")
         local machine_name   = data.tier.." Grinder"
         local machine_node   = "technic:"..string.lower(data.tier).."_grinder"
         local machine_demand = data.demand
         -- Setup meta data if it does not exist.
         if not eu_input then
            meta:set_int(data.tier.."_EU_demand", machine_demand[1])
            meta:set_int(data.tier.."_EU_input", 0)
            return
         end
         -- Power off automatically if no longer connected to a switching station
         technic.switching_station_timeout_count(pos, data.tier)
         local EU_upgrade, tube_upgrade = 0, 0
         if data.upgrade then
            EU_upgrade, tube_upgrade = technic.handle_machine_upgrades(meta)
         end
         if data.tube then
            technic.handle_machine_pipeworks(pos, tube_upgrade)
         end
         local result = technic.get_grinder_recipe(inv:get_stack("src", 1))
         if not result then
            hacky_swap_node(pos, machine_node)
            meta:set_string("infotext", machine_name.." Idle")
            meta:set_int(data.tier.."_EU_demand", 0)
            return
         end
         if eu_input < machine_demand[EU_upgrade+1] then
            -- Unpowered - go idle
            hacky_swap_node(pos, machine_node)
            meta:set_string("infotext", machine_name.." Unpowered")
         elseif eu_input >= machine_demand[EU_upgrade+1] then
            -- Powered
            hacky_swap_node(pos, machine_node.."_active")
            meta:set_string("infotext", machine_name.." Active")
            meta:set_int("src_time", meta:get_int("src_time") + 1)
            if meta:get_int("src_time") >= result.time / data.speed then
               meta:set_int("src_time", 0)
               local result_stack = ItemStack(result.output)
               if inv:room_for_item("dst", result_stack) then
                  srcstack = inv:get_stack("src", 1)
                  srcstack:take_item()
                  inv:set_stack("src", 1, srcstack)
                  inv:add_item("dst", result_stack)
               end
            end
         end
         meta:set_int(data.tier.."_EU_demand", machine_demand[EU_upgrade+1])
      end
   })
   technic.register_machine(tier, "technic:"..ltier.."_grinder",        technic.receiver)
   technic.register_machine(tier, "technic:"..ltier.."_grinder_active", technic.receiver)
end -- End registration
   data.typename = "grinding"
   data.machine_name = "grinder"
   data.machine_desc = S("%s Grinder")
   technic.register_base_machine(data)
end