First commit, as of 0.9

build_arrow.lua

@@ -0,0 +1,92 @@
+minetest.register_craftitem("throwing:arrow_build", {
+	description = "Build Arrow",
+	inventory_image = "throwing_arrow_build.png",
+})
+
+minetest.register_node("throwing:arrow_build_box", {
+	drawtype = "nodebox",
+	node_box = {
+		type = "fixed",
+		fixed = {
+			-- Shaft
+			{-6.5/17, -1.5/17, -1.5/17, 6.5/17, 1.5/17, 1.5/17},
+			--Spitze
+			{-4.5/17, 2.5/17, 2.5/17, -3.5/17, -2.5/17, -2.5/17},
+			{-8.5/17, 0.5/17, 0.5/17, -6.5/17, -0.5/17, -0.5/17},
+			--Federn
+			{6.5/17, 1.5/17, 1.5/17, 7.5/17, 2.5/17, 2.5/17},
+			{7.5/17, -2.5/17, 2.5/17, 6.5/17, -1.5/17, 1.5/17},
+			{7.5/17, 2.5/17, -2.5/17, 6.5/17, 1.5/17, -1.5/17},
+			{6.5/17, -1.5/17, -1.5/17, 7.5/17, -2.5/17, -2.5/17},
+			
+			{7.5/17, 2.5/17, 2.5/17, 8.5/17, 3.5/17, 3.5/17},
+			{8.5/17, -3.5/17, 3.5/17, 7.5/17, -2.5/17, 2.5/17},
+			{8.5/17, 3.5/17, -3.5/17, 7.5/17, 2.5/17, -2.5/17},
+			{7.5/17, -2.5/17, -2.5/17, 8.5/17, -3.5/17, -3.5/17},
+		}
+	},
+	tiles = {"throwing_arrow_build.png", "throwing_arrow_build.png", "throwing_arrow_build_back.png", "throwing_arrow_build_front.png", "throwing_arrow_build_2.png", "throwing_arrow_build.png"},
+	groups = {not_in_creative_inventory=1},
+})
+
+local THROWING_ARROW_ENTITY={
+	physical = false,
+	timer=0,
+	visual = "wielditem",
+	visual_size = {x=0.1, y=0.1},
+	textures = {"throwing:arrow_build_box"},
+	lastpos={},
+	collisionbox = {0,0,0,0,0,0},
+	node = "",
+}
+
+THROWING_ARROW_ENTITY.on_step = function(self, dtime)
+	self.timer=self.timer+dtime
+	local pos = self.object:getpos()
+	local node = minetest.get_node(pos)
+
+	if self.timer>0.2 then
+		local objs = minetest.env:get_objects_inside_radius({x=pos.x,y=pos.y,z=pos.z}, 1)
+		for k, obj in pairs(objs) do
+			if obj:get_luaentity() ~= nil then
+				if obj:get_luaentity().name ~= "throwing:arrow_build_entity" and obj:get_luaentity().name ~= "__builtin:item" then
+					self.object:remove()
+					if not minetest.setting_getbool("creative_mode") then
+						self.inventory:remove_item("main", {name=self.stack:get_name()})
+					end
+					if self.stack:get_definition().type == "node" and self.stack:get_name() ~= "default:torch" then
+						minetest.place_node(self.lastpos, {name=self.stack:get_name()})
+					else
+						minetest.add_item(self.lastpos, {name=self.stack:get_name()})
+					end
+					minetest.add_item(self.lastpos, 'throwing:arrow_build')
+				end
+			end
+		end
+	end
+
+	if self.lastpos.x~=nil then
+		if node.name ~= "air" then
+			self.object:remove()
+			if not minetest.setting_getbool("creative_mode") then
+					self.inventory:remove_item("main", {name=self.stack:get_name()})
+			end
+			if self.stack:get_definition().type == "node" and self.stack:get_name() ~= "default:torch" then
+				minetest.place_node(self.lastpos, {name=self.stack:get_name()})
+			else
+				minetest.add_item(self.lastpos, {name=self.stack:get_name()})
+			end
+			minetest.add_item(self.lastpos, 'throwing:arrow_build')
+		end
+	end
+	self.lastpos={x=pos.x, y=pos.y, z=pos.z}
+end
+
+minetest.register_entity("throwing:arrow_build_entity", THROWING_ARROW_ENTITY)
+
+minetest.register_craft({
+	output = 'throwing:arrow_build',
+	recipe = {
+		{'default:stick', 'default:stick', 'default:shovel_steel'},
+	}
+})