ShadowNinja
2013-10-30 be2f30a1a2f5b6c2aae7fd4cf8231aec2da0844d
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technic.extractor_recipes ={}
 
local S = technic.getter
 
technic.register_extractor_recipe = function(src, src_count, dst, dst_count)
    technic.extractor_recipes[src] = {src_count = src_count, dst_name = dst, dst_count = dst_count}
    if unified_inventory then
        unified_inventory.register_craft({
            type = "extracting",
            output = dst.." "..dst_count,
            items = {src.." "..src_count},
            width = 0,
        })
    end
end
 
-- Receive an ItemStack of result by an ItemStack input
technic.get_extractor_recipe = function(item)
    if technic.extractor_recipes[item.name] and
       item.count >= technic.extractor_recipes[item.name].src_count then
        return technic.extractor_recipes[item.name]
    else
        return nil
    end
end
 
 
 
technic.register_extractor_recipe("technic:coal_dust",        1,          "dye:black",      2)
technic.register_extractor_recipe("default:cactus",           1,          "dye:green",      2)
technic.register_extractor_recipe("default:dry_shrub",        1,          "dye:brown",      2)
technic.register_extractor_recipe("flowers:geranium",         1,          "dye:blue",       2)
technic.register_extractor_recipe("flowers:dandelion_white",  1,          "dye:white",      2)
technic.register_extractor_recipe("flowers:dandelion_yellow", 1,          "dye:yellow",     2)
technic.register_extractor_recipe("flowers:tulip",            1,          "dye:orange",     2)
technic.register_extractor_recipe("flowers:rose",             1,          "dye:red",        2)
technic.register_extractor_recipe("flowers:viola",            1,          "dye:violet",     2)
technic.register_extractor_recipe("technic:raw_latex",        1,          "technic:rubber", 3)
technic.register_extractor_recipe("moretrees:rubber_tree_trunk_empty", 1, "technic:rubber", 1)
technic.register_extractor_recipe("moretrees:rubber_tree_trunk",       1, "technic:rubber", 1)
technic.register_extractor_recipe("technic:uranium",          5,          "technic:enriched_uranium", 1)
 
minetest.register_alias("extractor", "technic:extractor")
minetest.register_craft({
    output = 'technic:extractor',
    recipe = {
        {'technic:treetap', 'technic:motor',     'technic:treetap'},
        {'technic:treetap', 'technic:lv_cable0', 'technic:treetap'},
        {'',                '',                  ''},
    }
})
 
local extractor_formspec =
   "invsize[8,9;]"..
   "label[0,0;"..S("Extractor").."]"..
   "list[current_name;src;3,1;1,1;]"..
   "list[current_name;dst;5,1;2,2;]"..
   "list[current_player;main;0,5;8,4;]"
 
minetest.register_node("technic:extractor", {
    description = S("Extractor"),
    tiles = {"technic_lv_grinder_top.png",  "technic_lv_grinder_bottom.png", "technic_lv_grinder_side.png",
             "technic_lv_grinder_side.png", "technic_lv_grinder_side.png",   "technic_lv_grinder_front.png"},
    paramtype2 = "facedir",
    groups = {cracky=2},
    legacy_facedir_simple = true,
    sounds = default.node_sound_wood_defaults(),
    on_construct = function(pos)
        local meta = minetest.get_meta(pos)
        meta:set_string("infotext", S("Extractor"))
        meta:set_string("formspec", extractor_formspec)
        local inv = meta:get_inventory()
        inv:set_size("src", 1)
        inv:set_size("dst", 4)
    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") then
            minetest.chat_send_player(player:get_player_name(),
                S("Machine cannot be removed because it is not empty"))
            return false
        else
            return true
        end
    end,
})
 
minetest.register_node("technic:extractor_active", {
    description = S("Extractor"),
    tiles = {"technic_lv_grinder_top.png",  "technic_lv_grinder_bottom.png",
             "technic_lv_grinder_side.png", "technic_lv_grinder_side.png",
             "technic_lv_grinder_side.png", "technic_lv_grinder_front_active.png"},
    paramtype2 = "facedir",
    groups = {cracky=2, not_in_creative_inventory=1},
    legacy_facedir_simple = true,
    sounds = default.node_sound_wood_defaults(),
    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") then
            minetest.chat_send_player(player:get_player_name(),
                S("Machine cannot be removed because it is not empty"))
            return false
        else
            return true
        end
    end,
})
 
minetest.register_abm({
    nodenames = {"technic:extractor", "technic:extractor_active"},
    interval = 1,
    chance   = 1,
    action = function(pos, node, active_object_count, active_object_count_wider)
        -- The machine will automatically shut down if disconnected from power in some fashion.
        local meta     = minetest.get_meta(pos)
        local inv      = meta:get_inventory()
        local srcstack = inv:get_stack("src", 1)
        local eu_input = meta:get_int("LV_EU_input")
 
        -- Machine information
        local machine_name = S("Extractor")
        local machine_node = "technic:extractor"
        local demand       = 300
 
        -- Setup meta data if it does not exist.
        if not eu_input then
            meta:set_int("LV_EU_demand", demand)
            meta:set_int("LV_EU_input", 0)
            return
        end
 
        -- Power off automatically if no longer connected to a switching station
        technic.switching_station_timeout_count(pos, "LV")
 
        if srcstack then
            src_item = srcstack:to_table()
        end
        if src_item then
            recipe = technic.get_extractor_recipe(src_item)
        end
        if recipe then
            result = {name=recipe.dst_name, count=recipe.dst_count}
        end 
        if inv:is_empty("src") or (not recipe) or (not result) or
           (not inv:room_for_item("dst", result)) then
            hacky_swap_node(pos, machine_node)
            meta:set_string("infotext", S("%s Idle"):format(machine_name))
            meta:set_int("LV_EU_demand", 0)
            return
        end
 
        if eu_input < demand then
            -- unpowered - go idle
            hacky_swap_node(pos, machine_node)
            meta:set_string("infotext", S("%s Unpowered"):format(machine_name))
        elseif eu_input >= demand then
            -- Powered
            hacky_swap_node(pos, machine_node.."_active")
            meta:set_string("infotext", S("%s Active"):format(machine_name))
 
            meta:set_int("src_time", meta:get_int("src_time") + 1)
            if meta:get_int("src_time") >= 4 then -- 4 ticks per output
                meta:set_int("src_time", 0)
                srcstack:take_item(recipe.src_count)
                inv:set_stack("src", 1, srcstack)
                inv:add_item("dst", result)
            end
        end
        meta:set_int("LV_EU_demand", demand)
    end
})
 
technic.register_machine("LV", "technic:extractor",        technic.receiver)
technic.register_machine("LV", "technic:extractor_active", technic.receiver)