I think I'm going to change my mind about not having a GUI

README.md

@@ -105,6 +105,7 @@ You can find the old textures and sounds by going back to previous commits in Gi
     * The Constructor and Deconstructor are now deprecated. Element Exchange is no more.
     * Upgrades and Stars can no longer be used as fuel.
     * Dark and Red Matter Armor now uses ProjectE's textures
+    * Removed the ability to right click with stars to see the charge (made it more convenient to add the EMC Link)
 * Bugfixes:
     * Dark and Red Matter Armor display properly (and identically) in both games.
 

exchangeclone/emc_link.lua

@@ -3,7 +3,8 @@
 local function on_rightclick(pos, node, player, itemstack, pointed_thing)
     local meta = minetest.get_meta(pos)
     local inv = meta:get_inventory()
-    if player:get_player_control().sneak then
+    -- Would be sneak but that would require me to override the player's hand...
+    if player:get_player_control().aux1 then
         local contained = inv:get_stack("star", 1)
         if minetest.get_item_group(itemstack:get_name(), "klein_star") > 0 then
             inv:set_stack("star", 1, itemstack)
@@ -22,9 +23,61 @@ local function on_rightclick(pos, node, player, itemstack, pointed_thing)
     end
 end
 
+local function link_action(pos)
+    local using_star = true
+    local player
+    local meta = minetest.get_meta(pos)
+    local inv = meta:get_inventory()
+    if minetest.get_item_group(inv:get_stack("star", 1):get_name(), "klein_star") < 1 then
+        using_star = false
+        player = minetest.get_player_by_name(meta:get_string("exchangeclone_placer"))
+        if not (player and player ~= "") then return end
+    end
+    local target_item = meta:get_string("target_item")
+    if target_item and target_item ~= "" and minetest.registered_items[target_item] then
+        local input_stack = inv:get_stack("input", 1)
+        local output_stack = inv:get_stack("output", 1)
+        -- make sure the target matches the output (including enchantments)
+        if not inv:is_empty("output") then
+            if exchangeclone.handle_alias(target_item) ~= output_stack:get_name() then
+                return
+            end
+        end
+        local result = exchangeclone.handle_alias(target_item)
+        -- make sure star/player has enough EMC
+        local current_emc
+        if using_star then
+            current_emc = exchangeclone.get_star_emc(inv, "star", 1)
+        else
+            current_emc = exchangeclone.get_player_emc(player)
+        end
+        local emc_value = exchangeclone.get_item_emc(input_stack:get_name())
+        if emc_value and emc_value > 0 then
+            local max_amount = math.min(input_stack:get_stack_max(), math.floor(current_emc/emc_value))
+            local added_amount = max_amount - inv:add_item("output", ItemStack(result.." "..max_amount)):get_count()
+            local result_emc = math.min(current_emc, current_emc - (emc_value * added_amount)) -- not sure if "math.min()" is necessary
+            if using_star then
+                exchangeclone.set_star_emc(inv, "star", 1, result_emc)
+            else
+                exchangeclone.set_player_emc(player, result_emc)
+            end
+        end
+    end
+
+    local timer = minetest.get_node_timer(pos)
+    if not (target_item and target_item ~= "" and minetest.registered_items[target_item]) then
+        timer:stop()
+    else
+        if not timer:is_started() then
+            timer:start(1)
+        end
+    end
+end
+
 minetest.register_node("exchangeclone:emc_link", {
     description = "EMC Link\nAllows automation with personal EMC",
     tiles = {"exchangeclone_emc_link.png"},
+	groups = {pickaxey=4, material_stone=1, cracky = 2, building_block = 1, level = exchangeclone.mtg and 2 or 0},
     on_rightclick = on_rightclick,
     on_construct = function(pos)
         local meta = minetest.get_meta(pos)
@@ -34,13 +87,19 @@ minetest.register_node("exchangeclone:emc_link", {
         inv:set_size("output", 1)
         meta:set_string("infotext", "EMC Link")
     end,
+    can_dig = exchangeclone.can_dig,
+    after_dig_node = exchangeclone.drop_after_dig({"input", "star", "output"}),
+    on_blast = exchangeclone.on_blast({"input", "star", "output"}),
     after_place_node = function(pos, player, itemstack, pointed_thing)
         local player_name = player:get_player_name()
         local meta = minetest.get_meta(pos)
         meta:set_string("exchangeclone_placer", player_name)
-        meta:set_string("infotext", "EMC Link".."\n"..S("Owned by ")..player_name)
+        meta:set_string("infotext", "EMC Link".."\n".."Owned by "..player_name)
         if exchangeclone.pipeworks then
             pipeworks.after_place(pos, player, itemstack, pointed_thing)
         end
     end,
+	sounds = exchangeclone.sound_mod.node_sound_stone_defaults(),
+	_mcl_blast_resistance = 10,
+	_mcl_hardness = 8,
 })

exchangeclone/hopper_compat.lua

@@ -8,26 +8,25 @@ hopper:add_container({
 })
 
 hopper:add_container({
-	{"top", "group:container=3", "main"},
-	{"bottom", "group:container=3", "main"},
-	{"side", "group:container=3", "main"},
+	{"top", "exchangeclone:upgrader", "dst"},
+	{"side", "exchangeclone:upgrader", "fuel"},
+	{"bottom", "exchangeclone:upgrader", "src"},
 })
 
--- I assumed "top" meant when it's on top of a node, not when there's a node on top of it. Whoops.
 hopper:add_container({
-	{"top", "group:container=4", "dst"},
-	{"side", "group:container=4", "fuel"},
-	{"bottom", "group:container=4", "src"},
+	{"top", "group:exchangeclone_furnace", "dst"},
+	{"side", "group:exchangeclone_furnace", "fuel"},
+	{"bottom", "group:exchangeclone_furnace", "src"},
 })
 
--- Hoppers will only be able to insert into one side of a double chest, I think (unless you have 1 hopper per side)
 hopper:add_container({
-	{"top", "group:container=5", "main"},
-	{"bottom", "group:container=5", "main"},
-	{"side", "group:container=5", "main"},
+	{"top", "group:energy_collector", "main"},
+	{"bottom", "group:energy_collector", "main"},
+	{"side", "group:energy_collector", "main"},
 })
+
 hopper:add_container({
-	{"top", "group:container=6", "main"},
-	{"bottom", "group:container=6", "main"},
-	{"side", "group:container=6", "main"},
+	{"top", "exchangeclone:emc_link", "output"},
+	{"bottom", "exchangeclone:emc_link", "input"},
+	{"side", "exchangeclone:emc_link", "input"},
 })

exchangeclone/klein_stars.lua

@@ -1,16 +1,5 @@
 local S = minetest.get_translator()
 
-local function read_star_charge(itemstack, player, pointed_thing)
-    local click_test = exchangeclone.check_on_rightclick(itemstack, player, pointed_thing)
-    if click_test ~= false then
-        return click_test
-    end
-
-    local stored = exchangeclone.get_star_itemstack_emc(itemstack)
-    minetest.chat_send_player(player:get_player_name(), S("Current Charge: @1", exchangeclone.format_number(stored)))
-    return itemstack
-end
-
 local names = {
     "Klein Star Ein",
     "Klein Star Zwei",
@@ -35,8 +24,6 @@ for i, name in ipairs(names) do
         description = S(name).."\n"..S("Current Charge: @1/@2", 0, exchangeclone.format_number(capacity)),
         inventory_image = "exchangeclone_"..codified_name..".png",
         wield_image = "exchangeclone_"..codified_name..".png",
-        on_secondary_use = read_star_charge,
-        on_place = read_star_charge,
         groups = {klein_star = i, disable_repair = 1, fire_immune = 1},
         max_capacity = capacity,
         _mcl_generate_description = function(itemstack)