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functions.lua

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+chisel_tree = {}
+
+--function to register nodes
+function chisel_tree.register_trunk(mod_name,trunk_names)
+    for _, name in ipairs(trunk_names) do
+        minetest.register_node(":"..mod_name..":stripped_" .. name, {
+	        description = "Stripped "..name,
+	        tiles = {
+		        "stripped_"..mod_name.."_"..name.."_top.png",
+		        "stripped_"..mod_name.."_"..name.."_top.png",
+		        "stripped_"..mod_name.."_"..name..".png"
+	        },
+	        groups = {tree = 1, choppy = 2, oddly_breakable_by_hand = 1, flammable = 2, not_in_creative_inventory = 1},
+	        sounds = default.node_sound_wood_defaults(),
+	        paramtype2 = "facedir",
+	        on_place = minetest.rotate_node,
+        })
+    end
+end
+
+function chisel_tree.trunk_names(trunk_list)
+    trunk_names = trunk_list
+end
+
+--function to override axes
+function chisel_tree.register_axes(mod_name,axe_types)
+    for _, axe_name in ipairs(axe_types) do
+        minetest.override_item(mod_name..":" .. axe_name, {
+            on_place = function(itemstack, user, pointed_thing)
+
+                if pointed_thing.type ~= "node" then
+                    return
+                end
+
+                local pos = pointed_thing.under
+                local pname = user:get_player_name()
+
+                if minetest.is_protected(pos, pname) then
+                    minetest.record_protection_violation(pos, pname)
+                    return
+                end
+
+                local node = minetest.get_node(pos).name
+
+                for _, n in ipairs(trunk_names) do
+
+                    local tree = mod_name..":"..n
+                    if tree==node then
+                        local old_node = minetest.get_node(pos)
+                        minetest.swap_node(pos, {name = mod_name..":".."stripped_"..n, param2 = old_node.param2})
+                        itemstack:add_wear(65535 / 299) -- 300 uses
+
+		        if not creative_mode then
+                            local inv = user:get_inventory()
+                            --check for room in inv, if not, drop item
+			    if inv:room_for_item("main", "default:tree_bark") then
+                                inv:add_item("main", {name="default:tree_bark"})
+			    else
+			        minetest.add_item(pos, "default:tree_bark")
+			    end
+                        end
+
+                        return itemstack
+                    end
+                end
+
+            end,
+        })
+    end
+end
+--register alias to support old tool
+minetest.register_alias("chisel_tree:chisel", "default:axe_steel")
+
+
+
+