jewel workbench added and should work

mods/jewels/init.lua

@@ -15,6 +15,7 @@ function jewels.register_jewel(toolname, new_toolname, def)
    -- registers a new tool with different stats
 
    local data = {
+      name = new_toolname, -- the new name of the tool
       overlay = def.overlay or "jewels_jeweled_handle.png", -- overlay image
       stats = {
 	 digspeed = def.stats.digspeed, -- negative digs faster
@@ -26,9 +27,12 @@ function jewels.register_jewel(toolname, new_toolname, def)
       }
    }
 
-   jewels.registered_jewels[toolname] = data
+   if not jewels.registered_jewels[toolname] then
+      jewels.registered_jewels[toolname] = {}
+   end
+   table.insert(jewels.registered_jewels[toolname], data)
 
-   local tooldef = minetest.registered_tools[toolname]
+   local tooldef = minetest.deserialize(minetest.serialize(minetest.registered_tools[toolname]))
 
    local new_tool_invimage = ""
    if tooldef.inventory_image then
@@ -40,7 +44,7 @@ function jewels.register_jewel(toolname, new_toolname, def)
       new_tool_wieldimage = tooldef.wield_image .. "^" .. data.overlay
    end
 
-   local new_tooldef = tooldef   
+   local new_tooldef = tooldef
    local desc = new_tooldef.description or ""
 
    desc = "Jeweled " .. desc
@@ -95,6 +99,24 @@ function jewels.register_jewel(toolname, new_toolname, def)
    minetest.register_tool(new_toolname, new_tooldef)
 end
 
+function jewels.can_jewel(toolname)
+   for name, _ in pairs(jewels.registered_jewels) do
+      if name == toolname then
+	 return true
+      end
+   end
+
+   return false
+end
+
+function jewels.get_jeweled(toolname)
+   for name, jables in pairs(jewels.registered_jewels) do
+      if name == toolname then
+	 return util.choice_element(jables)
+      end
+   end
+end
+
 minetest.register_craftitem(
    "jewels:jewel",
    {
@@ -124,8 +146,37 @@ minetest.register_node(
       can_dig = function(pos, player)
 		   local meta = minetest.get_meta(pos)
 		   local inv = meta:get_inventory()
+
 		   return inv:is_empty("main")
 		end,
+      on_punch = function(pos, node, player, pointed_thing)
+		    local itemstack = player:get_wielded_item()
+		    
+		    if itemstack:get_name() == "jewels:jewel" then
+		       local meta = minetest.get_meta(pos)
+		       local inv = meta:get_inventory()
+
+		       local itemname = inv:get_stack("main", 1):get_name()
+
+		       if jewels.can_jewel(itemname) then
+			  inv:set_stack("main", 1, ItemStack(jewels.get_jeweled(itemname)))
+
+			  itemstack:take_item()
+		       end		       
+		    end
+
+		    player:set_wielded_item(itemstack)
+		end,
+   })
+
+minetest.register_craft(
+   {
+      output = "jewels:bench",
+      recipe = {
+	 {"group:planks", "jewels:jewel", "group:planks"},
+	 {"default:ingot_carbonsteel", "group:planks", "default:ingot_carbonsteel"},
+	 {"group:planks", "group:planks", "group:planks"}
+      }
    })
 
 local form_bench = default.ui.get_page("core_2part")
@@ -133,7 +184,8 @@ form_bench = form_bench .. "list[current_name;main;2.25,1.75;1,1;]"
 form_bench = form_bench .. "listring[current_name;main]"
 form_bench = form_bench .. default.ui.get_itemslot_bg(2.25, 1.75, 1, 1)
 
-form_bench = form_bench .. "label[3.25,2;Place unjeweled tool here, then rightclick on bench]"
+form_bench = form_bench .. "label[3.25,1.75;1. Place unjeweled tool here]"
+form_bench = form_bench .. "label[3.25,2.25;2. Hold a jewel and punch the bench]"
 
 form_bench = form_bench .. "list[current_player;main;0.25,4.75;8,4;]"
 form_bench = form_bench .. "listring[current_player;main]"

mods/util/init.lua

@@ -141,7 +141,11 @@ function util.choice(tab, pr)
 
    if #choices <= 0 then return end
 
-   return choices[pr:next(1, #choices)]
+   if pr then
+      return choices[pr:next(1, #choices)]
+   else
+      return choices[math.random(1, #choices)]
+   end
 end
 
 function util.choice_element(tab, pr)
@@ -155,6 +159,10 @@ function util.choice_element(tab, pr)
 
    if #choices <= 0 then return end
 
-   return choices[pr:next(1, #choices)]
+   if pr then
+      return choices[pr:next(1, #choices)]
+   else
+      return choices[math.random(1, #choices)]
+   end
 end