Merge pull request #20 from Uberi/master

Add inventory images to speed up load times.

devices.lua

@@ -329,9 +329,11 @@ for fill = 0, 10 do
 	if fill == 0 then 
 		filldesc="empty"
 		sgroups = {snappy=3, pipe=1, tankfill=fill+1}
+		image = nil
 	else
 		filldesc=fill.."0% full"
 		sgroups = {snappy=3, pipe=1, tankfill=fill+1, not_in_creative_inventory=1}
+		image = "pipeworks_storage_tank_fittings.png"
 	end
 
 	minetest.register_node("pipeworks:expansion_tank_"..fill, {
@@ -344,6 +346,7 @@ for fill = 0, 10 do
 			"pipeworks_storage_tank_back.png",
 			pipeworks_liquid_texture.."^pipeworks_storage_tank_front_"..fill..".png"
 		},
+		inventory_image = image,
 		paramtype = "light",
 		paramtype2 = "facedir",
 		groups = {snappy=3, pipe=1, tankfill=fill+1, not_in_creative_inventory=1},
@@ -374,6 +377,7 @@ for fill = 0, 10 do
 			"pipeworks_storage_tank_back.png",
 			pipeworks_liquid_texture.."^pipeworks_storage_tank_front_"..fill..".png"
 		},
+		inventory_image = image,
 		paramtype = "light",
 		paramtype2 = "facedir",
 		groups = sgroups,

init.lua

@@ -248,15 +248,18 @@ for zp = 0, 1 do
 	if pname ~= "110000" then
 		pgroups = {snappy=3, pipe=1, not_in_creative_inventory=1}
 		pipedesc = "Pipe segment (empty, "..pname..")... You hacker, you."
+		image = "pipeworks_plain.png"
 	else
 		pgroups = {snappy=3, pipe=1}
 		pipedesc = "Pipe segment"
+		image = nil
 	end
 
 	minetest.register_node("pipeworks:pipe_"..pname.."_empty", {
 		description = pipedesc,
 		drawtype = "nodebox",
 		tiles = pipes_fix_image_names(outimgs, "_empty"),
+		inventory_image = image,
 		paramtype = "light",
 		selection_box = {
 	             	type = "fixed",
@@ -287,6 +290,7 @@ for zp = 0, 1 do
 		description = "Pipe segment (loaded, "..pname..")... You hacker, you.",
 		drawtype = "nodebox",
 		tiles = pipes_fix_image_names(outimgs, "_loaded"),
+		inventory_image = image,
 		paramtype = "light",
 		selection_box = {
 	             	type = "fixed",

oldpipes.lua

@@ -311,14 +311,17 @@ for node in ipairs(nodenames) do
 
 	if node ~= 2 then
 		pgroups = {snappy=3, pipe=1, not_in_creative_inventory=1}
+		image = "pipeworks_plain.png"
 	else
 		pgroups = {snappy=3, pipe=1}
+		image = nil
 	end
 
 	minetest.register_node("pipeworks:"..nodenames[node], {
 		description = "Empty Pipe ("..descriptions[node]..")",
 		drawtype = "nodebox",
 		tiles = fix_image_names(node, "_empty"),
+		inventory_image = image,
 		paramtype = "light",
 		paramtype2 = "facedir",
 		selection_box = {
@@ -340,6 +343,7 @@ for node in ipairs(nodenames) do
 		description = "Loaded Pipe ("..descriptions[node]..")",
 		drawtype = "nodebox",
 		tiles = fix_image_names(node, "_loaded"),
+		inventory_image = image,
 		paramtype = "light",
 		paramtype2 = "facedir",
 		selection_box = {

tubes.lua

@@ -157,7 +157,7 @@ for zp = 0, 1 do
 	if tname ~= "000000" then
 		tgroups = {snappy=3, tube=1, not_in_creative_inventory=1}
 		tubedesc = desc.." ("..tname..")... You hacker, you."
-		iimg=nil
+		iimg=plain_textures[1]
 		wscale = {x=1,y=1,z=1}
 	else
 		tgroups = {snappy=3, tube=1}