Allow speciying custom top and overhang nodes

Can be true, false, or a table with two entries (topnode, overhang).

If false, the main pole extends all the way up to the specified height,
and the light is simply placed next to it.

if true, the main pole extends all the way up, and then steps right by
1m, with the light hanging from it.  This is the default.

if a table, the main pole stops 1m short of the top, and the two
specified nodes are placed above it, with the overhang to the right, and
the light hanging under it.

also fixed the custom base node not getting _digilines extension when
called-for

functions.lua

@@ -38,9 +38,10 @@ function streetlights.check_and_place(itemstack, placer, pointed_thing, def)
 	local light               = def.light
 	local param2              = def.param2
 	local height              = def.height or 5
-	local has_top             = (def.has_top ~= false)
 	local needs_digiline_wire = def.needs_digiline_wire
 	local distributor_node    = def.distributor_node
+	local poletop             = (def.topnodes and (type(def.topnodes) == "table") and def.topnodes.poletop)  or pole
+	local overhang            = (def.topnodes and (type(def.topnodes) == "table") and def.topnodes.overhang) or pole
 
 	local controls = placer:get_player_control()
 	if not placer then return end
@@ -85,7 +86,7 @@ function streetlights.check_and_place(itemstack, placer, pointed_thing, def)
 	def3 = minetest.registered_items[node3.name]
 	if minetest.is_protected(pos3, player_name) or not (def3 and def3.buildable_to) then return end
 
-	if has_top then
+	if def.topnodes ~= false then
 		pos4 = { x = pos1.x+fdir_to_right[fdir+1][1], y = pos1.y+height-1, z = pos1.z+fdir_to_right[fdir+1][2] }
 		node4 = minetest.get_node(pos4)
 		def4 = minetest.registered_items[node4.name]
@@ -146,20 +147,27 @@ function streetlights.check_and_place(itemstack, placer, pointed_thing, def)
 	end
 
 	local pole2 = pole
+
 	if needs_digiline_wire then
+		base = base.."_digilines"
 		pole2 = pole.."_digilines"
+		poletop = poletop.."_digilines"
+		overhang = overhang.."_digilines"
 	end
 
 	local pos2b = {x=pos1.x, y = pos1.y+1, z=pos1.z}
 	minetest.set_node(pos2b, {name = base })
 
-	for i = 2, height do
+	for i = 2, height-1 do
 		pos2 = {x=pos1.x, y = pos1.y+i, z=pos1.z}
 		minetest.set_node(pos2, {name = pole2 })
 	end
 
-	if has_top then
+	local pos2t = {x=pos1.x, y = pos1.y+height, z=pos1.z}
-		minetest.set_node(pos3, { name = pole2 })
+	minetest.set_node(pos2t, {name = poletop })
+
+	if def.topnodes ~= false then
+		minetest.set_node(pos3, { name = overhang })
 		minetest.set_node(pos4, { name = light, param2 = param2 })
 	else
 		minetest.set_node(pos3, { name = light, param2 = param2 })

simple.lua

@@ -30,7 +30,7 @@ end
 local digiline_wire_node = "digilines:wire_std_00000000"
 
 local poles_tab = {
---    material name,  mod name,           node name,                        optional base, optional height, has top section
+--    material name,  mod name,           node name,                        optional base, optional height, top section
 	{ "wood",         "default",          "default:fence_wood" },
 	{ "junglewood",   "default",          "default:fence_junglewood" },
 	{ "brass",        "homedecor_fences", "homedecor:fence_brass"},
@@ -51,7 +51,7 @@ for _, pole in ipairs(poles_tab) do
 	local matnode  = pole[3]
 	local basenode = pole[4]
 	local height   = pole[5]
-	local has_top  = pole[6]
+	local topnodes = pole[6]
 
 	if minetest.get_modpath(matmod) then
 
@@ -122,7 +122,7 @@ for _, pole in ipairs(poles_tab) do
 							pole=matnode,
 							light=lightnode,
 							param2=lightparam2,
-							has_top = has_top,
+							topnodes = topnodes,
 							height = height
 						})
 					end
@@ -157,7 +157,7 @@ for _, pole in ipairs(poles_tab) do
 								pole=matnode,
 								light=lightnode,
 								param2=lightparam2,
-								has_top = has_top,
+								topnodes = topnodes,
 								height = height,
 								needs_digiline_wire=true
 							})
@@ -215,7 +215,7 @@ for _, pole in ipairs(poles_tab) do
 									pole=matnode,
 									light=lightnode,
 									param2=lightparam2,
-									has_top = has_top,
+									topnodes = topnodes,
 									height = height,
 									needs_digiline_wire=true,
 									distributor_node=distributor