Total rewrite again. All pipes are now nice and round-looking, and they auto-connect! Also added temporary nodes for pump

and valve (each with an on/off setting - punch to change).  No crafting recipes yet and the pipes still don't do anything
useful yet.  Soon.

1 files changed, 437 insertions, 311 deletions

diff --git a/init.lua b/init.lua
index 1c8c147..713b5da 100644
--- a/init.lua
+++ b/init.lua
@@ -6,361 +6,487 @@
 -- License: WTFPL
 --
 
-local DEBUG = 0
+-- uncomment the following dofile line to enable the old pipe nodes.
+-- dofile(minetest.get_modpath("pipeworks").."/oldpipes.lua")
 
--- Local Functions
+-- tables
 
-local dbg = function(s)
-	if DEBUG == 1 then
-		print('[PIPEWORKS] ' .. s)
-	end
-end
+minetest.register_alias("pipeworks:pipe", "pipeworks:pipe_000000_empty")
+
+local leftstub = {
+	{ -32/64, -2/64, -6/64,   1/64, 2/64, 6/64 },	-- pipe segment against -X face
+	{ -32/64, -4/64, -5/64,   1/64, 4/64, 5/64 },
+	{ -32/64, -5/64, -4/64,   1/64, 5/64, 4/64 },
+	{ -32/64, -6/64, -2/64,   1/64, 6/64, 2/64 },
+
+	{ -32/64, -3/64, -8/64, -30/64, 3/64, 8/64 },	-- (the flange for it)
+	{ -32/64, -5/64, -7/64, -30/64, 5/64, 7/64 },
+	{ -32/64, -6/64, -6/64, -30/64, 6/64, 6/64 },
+	{ -32/64, -7/64, -5/64, -30/64, 7/64, 5/64 },
+	{ -32/64, -8/64, -3/64, -30/64, 8/64, 3/64 }
+}
+
+local rightstub = {
+	{ -1/64, -2/64, -6/64,  32/64, 2/64, 6/64 },	-- pipe segment against +X face
+	{ -1/64, -4/64, -5/64,  32/64, 4/64, 5/64 },
+	{ -1/64, -5/64, -4/64,  32/64, 5/64, 4/64 },
+	{ -1/64, -6/64, -2/64,  32/64, 6/64, 2/64 },
+
+	{ 30/64, -3/64, -8/64, 32/64, 3/64, 8/64 },	-- (the flange for it)
+	{ 30/64, -5/64, -7/64, 32/64, 5/64, 7/64 },
+	{ 30/64, -6/64, -6/64, 32/64, 6/64, 6/64 },
+	{ 30/64, -7/64, -5/64, 32/64, 7/64, 5/64 },
+	{ 30/64, -8/64, -3/64, 32/64, 8/64, 3/64 }
+}
+
+local bottomstub = {
+	{ -2/64, -32/64, -6/64,   2/64, 1/64, 6/64 },	-- pipe segment against -Y face
+	{ -4/64, -32/64, -5/64,   4/64, 1/64, 5/64 },
+	{ -5/64, -32/64, -4/64,   5/64, 1/64, 4/64 },
+	{ -6/64, -32/64, -2/64,   6/64, 1/64, 2/64 },
+
+	{ -3/64, -32/64, -8/64, 3/64, -30/64, 8/64 },	-- (the flange for it)
+	{ -5/64, -32/64, -7/64, 5/64, -30/64, 7/64 },
+	{ -6/64, -32/64, -6/64, 6/64, -30/64, 6/64 },
+	{ -7/64, -32/64, -5/64, 7/64, -30/64, 5/64 },
+	{ -8/64, -32/64, -3/64, 8/64, -30/64, 3/64 }
+}
+
+
+local topstub = {
+	{ -2/64, -1/64, -6/64,   2/64, 32/64, 6/64 },	-- pipe segment against +Y face
+	{ -4/64, -1/64, -5/64,   4/64, 32/64, 5/64 },
+	{ -5/64, -1/64, -4/64,   5/64, 32/64, 4/64 },
+	{ -6/64, -1/64, -2/64,   6/64, 32/64, 2/64 },
+
+	{ -3/64, 30/64, -8/64, 3/64, 32/64, 8/64 },	-- (the flange for it)
+	{ -5/64, 30/64, -7/64, 5/64, 32/64, 7/64 },
+	{ -6/64, 30/64, -6/64, 6/64, 32/64, 6/64 },
+	{ -7/64, 30/64, -5/64, 7/64, 32/64, 5/64 },
+	{ -8/64, 30/64, -3/64, 8/64, 32/64, 3/64 }
+}
+
+local frontstub = {
+	{ -6/64, -2/64, -32/64,   6/64, 2/64, 1/64 },	-- pipe segment against -Z face
+	{ -5/64, -4/64, -32/64,   5/64, 4/64, 1/64 },
+	{ -4/64, -5/64, -32/64,   4/64, 5/64, 1/64 },
+	{ -2/64, -6/64, -32/64,   2/64, 6/64, 1/64 },
+
+	{ -8/64, -3/64, -32/64, 8/64, 3/64, -30/64 },	-- (the flange for it)
+	{ -7/64, -5/64, -32/64, 7/64, 5/64, -30/64 },
+	{ -6/64, -6/64, -32/64, 6/64, 6/64, -30/64 },
+	{ -5/64, -7/64, -32/64, 5/64, 7/64, -30/64 },
+	{ -3/64, -8/64, -32/64, 3/64, 8/64, -30/64 }
+}
+
+local backstub = {
+	{ -6/64, -2/64, -1/64,   6/64, 2/64, 32/64 },	-- pipe segment against -Z face
+	{ -5/64, -4/64, -1/64,   5/64, 4/64, 32/64 },
+	{ -4/64, -5/64, -1/64,   4/64, 5/64, 32/64 },
+	{ -2/64, -6/64, -1/64,   2/64, 6/64, 32/64 },
+
+	{ -8/64, -3/64, 30/64, 8/64, 3/64, 32/64 },	-- (the flange for it)
+	{ -7/64, -5/64, 30/64, 7/64, 5/64, 32/64 },
+	{ -6/64, -6/64, 30/64, 6/64, 6/64, 32/64 },
+	{ -5/64, -7/64, 30/64, 5/64, 7/64, 32/64 },
+	{ -3/64, -8/64, 30/64, 3/64, 8/64, 32/64 }
+} 
+
+local selectboxes = {
+	{ -32/64,  -8/64,  -8/64,  8/64,  8/64,  8/64 },
+	{ -8/64 ,  -8/64,  -8/64, 32/64,  8/64,  8/64 },
+	{ -8/64 , -32/64,  -8/64,  8/64,  8/64,  8/64 },
+	{ -8/64 ,  -8/64,  -8/64,  8/64, 32/64,  8/64 },
+	{ -8/64 ,  -8/64, -32/64,  8/64,  8/64,  8/64 },
+	{ -8/64 ,  -8/64,  -8/64,  8/64,  8/64, 32/64 }
+}
 
-local nodenames = {
-	"vertical",
-	"horizontal",
-	"junction_xy",
-	"junction_xz",
-	"bend_xy_down",
-	"bend_xy_up",
-	"bend_xz",
-	"crossing_xz",
-	"crossing_xy",
-	"crossing_xyz",
-	"pipe",
-	"cap_neg_x",
-	"cap_pos_x",
-	"cap_neg_y",
-	"cap_pos_y",
-	"cap_neg_z",
-	"cap_pos_z"
+bendsphere = {	
+	{ -4/64, -4/64, -4/64, 4/64, 4/64, 4/64 },
+	{ -5/64, -3/64, -3/64, 5/64, 3/64, 3/64 },
+	{ -3/64, -5/64, -3/64, 3/64, 5/64, 3/64 },
+	{ -3/64, -3/64, -5/64, 3/64, 3/64, 5/64 }
 }
 
-local descriptions = {
-	"vertical",
-	"horizontal",
-	"junction between X and Y axes",
-	"junction between X and Z axes",
-	"downward bend between X and Y axes",
-	"upward bend between X and Y axes",
-	"bend between X/Z axes",
-	"4-way crossing between X and Z axes",
-	"4-way crossing between X/Z and Y axes",
-	"6-way crossing",
-	"basic segment",
-	"capped, negative X half only",
-	"capped, positive X half only",
-	"capped, negative Y half only",
-	"capped, positive Y half only",
-	"capped, negative Z half only",
-	"capped, positive Z half only"
+pumpbody = {
+	{ -6/16, -8/16, -6/16, 6/16, 8/16, 6/16 }
 }
 
-local nodeimages = {
-	{"pipeworks_pipe_end.png",
-	 "pipeworks_pipe_end.png",
-	 "pipeworks_plain.png",
-	 "pipeworks_plain.png",
-	 "pipeworks_windowed_XXXXX.png",
-	 "pipeworks_windowed_XXXXX.png"},
-
-	{"pipeworks_windowed_XXXXX.png",
-	 "pipeworks_windowed_XXXXX.png",
-	 "pipeworks_pipe_end.png",
-	 "pipeworks_pipe_end.png",
-	 "pipeworks_plain.png",
-	 "pipeworks_plain.png"},
-
-	{"pipeworks_pipe_end.png",
-	 "pipeworks_pipe_end.png",
-	 "pipeworks_pipe_end.png",
-	 "pipeworks_plain.png",
-	 "pipeworks_windowed_XXXXX.png",
-	 "pipeworks_windowed_XXXXX.png"},
-
-	{"pipeworks_windowed_XXXXX.png",
-	 "pipeworks_windowed_XXXXX.png",
-	 "pipeworks_pipe_end.png",
-	 "pipeworks_pipe_end.png",
-	 "pipeworks_pipe_end.png",
-	 "pipeworks_plain.png"},
-
-	{"pipeworks_plain.png",
-	 "pipeworks_pipe_end.png",
-	 "pipeworks_pipe_end.png",
-	 "pipeworks_plain.png",
-	 "pipeworks_windowed_XXXXX.png",
-	 "pipeworks_windowed_XXXXX.png"},
-
-	{"pipeworks_pipe_end.png",
-	 "pipeworks_plain.png",
-	 "pipeworks_pipe_end.png",
-	 "pipeworks_plain.png",
-	 "pipeworks_windowed_XXXXX.png",
-	 "pipeworks_windowed_XXXXX.png"},
-
-	{"pipeworks_windowed_XXXXX.png",
-	 "pipeworks_windowed_XXXXX.png",
-	 "pipeworks_pipe_end.png",
-	 "pipeworks_plain.png",
-	 "pipeworks_pipe_end.png",
-	 "pipeworks_plain.png"},
-
-	{"pipeworks_windowed_XXXXX.png",
-	 "pipeworks_windowed_XXXXX.png",
-	 "pipeworks_pipe_end.png",
-	 "pipeworks_pipe_end.png",
-	 "pipeworks_pipe_end.png",
-	 "pipeworks_pipe_end.png"},
-
-	{"pipeworks_pipe_end.png",
-	 "pipeworks_pipe_end.png",
-	 "pipeworks_pipe_end.png",
-	 "pipeworks_pipe_end.png",
-	 "pipeworks_windowed_XXXXX.png",
-	 "pipeworks_windowed_XXXXX.png"},
-
-	{"pipeworks_pipe_end.png",
-	 "pipeworks_pipe_end.png",
-	 "pipeworks_pipe_end.png",
-	 "pipeworks_pipe_end.png",
-	 "pipeworks_pipe_end.png",
-	 "pipeworks_pipe_end.png"},
-
--- horizontal short segment
-
-	{"pipeworks_windowed_XXXXX.png",
-	 "pipeworks_windowed_XXXXX.png",
-	 "pipeworks_pipe_end.png",
-	 "pipeworks_pipe_end.png",
-	 "pipeworks_plain.png",
-	 "pipeworks_plain.png"},
-
--- capped 
-
-	{"pipeworks_windowed_XXXXX.png",
-	 "pipeworks_windowed_XXXXX.png",
-	 "pipeworks_windowed_XXXXX.png",
-	 "pipeworks_pipe_end.png",
-	 "pipeworks_windowed_XXXXX.png",
-	 "pipeworks_windowed_XXXXX.png"},
-
-	{"pipeworks_windowed_XXXXX.png",
-	 "pipeworks_windowed_XXXXX.png",
-	 "pipeworks_pipe_end.png",
-	 "pipeworks_windowed_XXXXX.png",
-	 "pipeworks_windowed_XXXXX.png",
-	 "pipeworks_windowed_XXXXX.png"},
-
-	{"pipeworks_windowed_XXXXX.png",
-	 "pipeworks_pipe_end.png",
-	 "pipeworks_windowed_XXXXX.png",
-	 "pipeworks_windowed_XXXXX.png",
-	 "pipeworks_windowed_XXXXX.png",
-	 "pipeworks_windowed_XXXXX.png"},
-
-	{"pipeworks_pipe_end.png",
-	 "pipeworks_windowed_XXXXX.png",
-	 "pipeworks_windowed_XXXXX.png",
-	 "pipeworks_windowed_XXXXX.png",
-	 "pipeworks_windowed_XXXXX.png",
-	 "pipeworks_windowed_XXXXX.png"},
-
-	{"pipeworks_windowed_XXXXX.png",
-	 "pipeworks_windowed_XXXXX.png",
-	 "pipeworks_windowed_XXXXX.png",
-	 "pipeworks_windowed_XXXXX.png",
-	 "pipeworks_windowed_XXXXX.png",
-	 "pipeworks_pipe_end.png"},
-
-	{"pipeworks_windowed_XXXXX.png",
-	 "pipeworks_windowed_XXXXX.png",
-	 "pipeworks_windowed_XXXXX.png",
-	 "pipeworks_windowed_XXXXX.png",
-	 "pipeworks_pipe_end.png",
-	 "pipeworks_windowed_XXXXX.png"},
+valvebody = {
+	{ -4/16, -4/16, -4/16, 4/16, 4/16, 4/16 }
 }
 
-local selectionboxes = {
-	{ -0.15, -0.5, -0.15, 0.15,  0.5, 0.15 },
-	{ -0.5, -0.15, -0.15, 0.5, 0.15, 0.15 },
-	{ -0.15, -0.5, -0.15, 0.5, 0.5, 0.15 },
-	{ -0.5, -0.15, -0.15, 0.5, 0.15, 0.5 },
-	{ -0.15, -0.5, -0.15, 0.5, 0.15, 0.15 },
-	{ -0.15, -0.15, -0.15, 0.5, 0.5, 0.15 },
-	{ -0.15, -0.15, -0.15, 0.5, 0.15, 0.5 },
-	{ -0.5, -0.15, -0.5, 0.5, 0.15, 0.5 },
-	{ -0.5, -0.5, -0.15, 0.5, 0.5, 0.15 },
-	{ -0.5, -0.5, -0.5, 0.5, 0.5, 0.5 },
-	{ -0.3, -0.15, -0.15, 0.3, 0.15, 0.15 },
-	{ -0.5, -0.15, -0.15, 0, 0.15, 0.15 },
-	{ 0, -0.15, -0.15, 0.5, 0.15, 0.15 },
-	{ -0.15, -0.5, -0.15, 0.15, 0, 0.15 },
-	{ -0.15, 0, -0.15, 0.15, 0.5, 0.15 },
-	{ -0.15, -0.15, -0.5, 0.15, 0.15, 0 },
-	{ -0.15, -0.15, 0, 0.15, 0.15, 0.5 },
+valvehandle_on = {
+	{ -5/16, 4/16, -1/16, 0, 5/16, 1/16 }
 }
 
-local nodeboxes = {
-	{{ -0.15, -0.5 , -0.15, 0.15, -0.45, 0.15 },	-- vertical
-	 { -0.1 , -0.45, -0.1 , 0.1 ,  0.45, 0.1  },
-	 { -0.15,  0.45, -0.15, 0.15,  0.5 , 0.15 }},
-
-	{{ -0.5 , -0.15, -0.15, -0.45, 0.15, 0.15 },	-- horizontal
-	 { -0.45, -0.1 , -0.1 ,  0.45, 0.1 , 0.1  },
-	 {  0.45, -0.15, -0.15,  0.5 , 0.15, 0.15 }},
-
-	{{ -0.15, -0.5 , -0.15,  0.15, -0.45, 0.15 },	-- vertical with X/Z junction
-	 { -0.1 , -0.45, -0.1 ,  0.1 ,  0.45, 0.1  },
-	 { -0.15,  0.45, -0.15,  0.15,  0.5 , 0.15 },	
-	 {  0.1 , -0.1 , -0.1 ,  0.45,  0.1 , 0.1  },
-	 {  0.45, -0.15, -0.15,  0.5 ,  0.15, 0.15 }},
-
-	{{ -0.15, -0.15,  0.45,  0.15, 0.15, 0.5  },	-- horizontal with X/Z junction
-	 { -0.1 , -0.1 ,  0.1 ,  0.1 , 0.1 , 0.45 },
-	 { -0.5 , -0.15, -0.15, -0.45, 0.15, 0.15 },
-	 { -0.45, -0.1 , -0.1 ,  0.45, 0.1 , 0.1  },
-	 {  0.45, -0.15, -0.15,  0.5 , 0.15, 0.15 }},
-
-	{{ -0.15, -0.5 , -0.15,  0.15, -0.45, 0.15 },	-- bend down from X/Z to Y axis
-	 { -0.1 , -0.45, -0.1 ,  0.1 ,  0.1 , 0.1  },
-	 { -0.1 , -0.1 , -0.1 ,  0.45,  0.1 , 0.1  },
-	 {  0.45, -0.15, -0.15,  0.5 ,  0.15, 0.15 }},
-
-	{{ -0.15, 0.45 , -0.15, 0.15,  0.5, 0.15 },	-- bend up from X/Z to Y axis
-	 { -0.1 , -0.1 , -0.1 , 0.1 , 0.45, 0.1  },
-	 { -0.1 , -0.1 , -0.1 , 0.45, 0.1 , 0.1  },
-	 {  0.45, -0.15, -0.15, 0.5 , 0.15, 0.15 }},
-
-	{{ -0.15, -0.15,  0.45,  0.15, 0.15, 0.5  },	-- bend between X and Z axes
-	 { -0.1 , -0.1 ,  0.1 ,  0.1 , 0.1 , 0.45 },
-	 { -0.1 , -0.1 , -0.1 ,  0.45, 0.1 , 0.1  },
-	 {  0.45, -0.15, -0.15,  0.5 , 0.15, 0.15 }},
-
-	{{ -0.5 , -0.15, -0.15, -0.45, 0.15, 0.15 },	-- 4-way crossing between X and Z axes
-	 { -0.45, -0.1 , -0.1 ,  0.45, 0.1 , 0.1  },
-	 {  0.45, -0.15, -0.15,  0.5 , 0.15, 0.15 },
-	 { -0.15, -0.15, -0.5 ,  0.15, 0.15, -0.45 },
-	 { -0.1 , -0.1 , -0.45,  0.1 , 0.1 ,  0.45 },
-	 { -0.15, -0.15,  0.45,  0.15, 0.15,  0.5  }},
-
-	{{ -0.15, -0.5 , -0.15, 0.15, -0.45, 0.15 },	-- 4-way crossing between X/Z and Y axes
-	 { -0.1 , -0.45, -0.1 , 0.1 ,  0.45, 0.1  },
-	 { -0.15,  0.45, -0.15, 0.15,  0.5 , 0.15 },
-	 { -0.5 , -0.15, -0.15, -0.45, 0.15, 0.15 },
-	 { -0.45, -0.1 , -0.1 ,  0.45, 0.1 , 0.1  },
-	 {  0.45, -0.15, -0.15,  0.5 , 0.15, 0.15 }},
-
-	{{ -0.5 , -0.15, -0.15, -0.45, 0.15, 0.15 },	-- 6-way crossing (all 3 axes)
-	 { -0.45, -0.1 , -0.1 ,  0.45, 0.1 , 0.1  },
-	 {  0.45, -0.15, -0.15,  0.5 , 0.15, 0.15 },
-	 { -0.15, -0.15, -0.5 ,  0.15, 0.15, -0.45 },
-	 { -0.1 , -0.1 , -0.45,  0.1 , 0.1 ,  0.45 },
-	 { -0.15, -0.15,  0.45,  0.15, 0.15,  0.5  },
-	 { -0.15, -0.5 , -0.15, 0.15, -0.45, 0.15 },
-	 { -0.1 , -0.45, -0.1 , 0.1 ,  0.45, 0.1  },
-	 { -0.15,  0.45, -0.15, 0.15,  0.5 , 0.15 }},
-
-	{{ -0.3 , -0.15, -0.15, -0.25, 0.15, 0.15 },	-- main center segment
-	 { -0.25, -0.1 , -0.1 ,  0.25, 0.1 , 0.1  },
-	 {  0.25, -0.15, -0.15,  0.3 , 0.15, 0.15 }},
-
-	{{ -0.5,  -0.15, -0.15, -0.45, 0.15, 0.15 },	-- anchored at -X
-	 { -0.45, -0.1,  -0.1,  -0.2,  0.1,  0.1  },
-	 { -0.2,  -0.15, -0.15, -0.15, 0.15, 0.15 },
-	 { -0.15, -0.12, -0.12, -0.1,  0.12, 0.12 },
-	 { -0.1,  -0.08, -0.08, -0.05, 0.08, 0.08 },
-	 { -0.05, -0.04, -0.04,  0,    0.04, 0.04 }},
-
-	{{  0.45, -0.15, -0.15, 0.5,  0.15, 0.15 },	-- anchored at +X
-	 {  0.2,  -0.1,  -0.1,  0.45, 0.1,  0.1  },
-	 {  0.15, -0.15, -0.15, 0.2,  0.15, 0.15 },
-	 {  0.1,  -0.12, -0.12, 0.15, 0.12, 0.12 },
-	 {  0.05, -0.08, -0.08, 0.1,  0.08, 0.08 },
-	 {  0,    -0.04, -0.04, 0.05, 0.04, 0.04 }},
-
-	{{ -0.15,  -0.5, -0.15,  0.15, -0.45, 0.15 },	-- anchored at -Y
-	 { -0.1,  -0.45, -0.1,   0.1,  -0.2,  0.1  },
-	 { -0.15,  -0.2, -0.15,  0.15, -0.15, 0.15 },
-	 { -0.12, -0.15, -0.12,  0.12, -0.1,  0.12 },
-	 { -0.08, -0.1,  -0.08,  0.08, -0.05, 0.08 },
-	 { -0.04, -0.05, -0.04,  0.04,  0,    0.04 }},
-
-	{{ -0.15,  0.45, -0.15, 0.15, 0.5,  0.15 },	-- anchored at +Y
-	 { -0.1,   0.2,  -0.1,  0.1,  0.45, 0.1  },
-	 { -0.15,  0.15, -0.15, 0.15, 0.2,  0.15 },
-	 { -0.12,  0.1,  -0.12, 0.12, 0.15, 0.12 },
-	 { -0.08,  0.05, -0.08, 0.08, 0.1,  0.08 } ,
-	 { -0.04,  0,    -0.04, 0.04, 0.05, 0.04 }},
-
-	{{ -0.15, -0.15, -0.5,  0.15, 0.15, -0.45 },	-- anchored at -Z
-	 { -0.1,  -0.1,  -0.45, 0.1,  0.1,  -0.2  },
-	 { -0.15, -0.15, -0.2,  0.15, 0.15, -0.15 },
-	 { -0.12, -0.12, -0.15, 0.12, 0.12, -0.1  },
-	 { -0.08, -0.08, -0.1,  0.08, 0.08, -0.05 },
-	 { -0.04, -0.04, -0.05, 0.04, 0.04,  0    }},
-
-	{{ -0.15, -0.15,  0.45, 0.15, 0.15, 0.5  },	-- anchored at +Z
-	 { -0.1,  -0.1,   0.2,  0.1,  0.1,  0.45 },
-	 { -0.15, -0.15,  0.15, 0.15, 0.15, 0.2  },
-	 { -0.12, -0.12,  0.1,  0.12, 0.12, 0.15 },
-	 { -0.08, -0.08,  0.05, 0.08, 0.08, 0.1  },
-	 { -0.04, -0.04,  0,    0.04, 0.04, 0.05 }},
+valvehandle_off = {
+	{ -1/16, 4/16, -5/16, 1/16, 5/16, 0 }
 }
 
-function fix_image_names(node, replacement)
+
+-- Local Functions
+
+local dbg = function(s)
+	if DEBUG == 1 then
+		print('[PIPEWORKS] ' .. s)
+	end
+end
+
+function fix_newpipe_names(table, replacement)
 	outtable={}
-	for i in ipairs(nodeimages[node]) do
-		outtable[i]=string.gsub(nodeimages[node][i], "_XXXXX", replacement)
+	for i in ipairs(table) do
+		outtable[i]=string.gsub(table[i], "_XXXXX", replacement)
 	end
 
 	return outtable
 end
 
--- Now define the actual nodes
+local function addbox(t, b)
+	for i in ipairs(b)
+		do table.insert(t, b[i])
+	end
+end
+
+local function autoroute(pos, state)
+
+	local nctr = minetest.env:get_node(pos)
+	if (string.find(nctr.name, "pipeworks:pipe_") == nil) then return end
+
+	local pxm=0
+	local pxp=0
+	local pym=0
+	local pyp=0
+	local pzm=0
+	local pzp=0
+
+	local nxm = minetest.env:get_node({ x=pos.x-1, y=pos.y  , z=pos.z   })
+	local nxp = minetest.env:get_node({ x=pos.x+1, y=pos.y  , z=pos.z   })
+	local nym = minetest.env:get_node({ x=pos.x  , y=pos.y-1, z=pos.z   })
+	local nyp = minetest.env:get_node({ x=pos.x  , y=pos.y+1, z=pos.z   })
+	local nzm = minetest.env:get_node({ x=pos.x  , y=pos.y  , z=pos.z-1 })
+	local nzp = minetest.env:get_node({ x=pos.x  , y=pos.y  , z=pos.z+1 })
+
+	if (string.find(nxm.name, "pipeworks:pipe_") ~= nil) then pxm=1 end
+	if (string.find(nxp.name, "pipeworks:pipe_") ~= nil) then pxp=1 end
+	if (string.find(nym.name, "pipeworks:pipe_") ~= nil) then pym=1 end
+	if (string.find(nyp.name, "pipeworks:pipe_") ~= nil) then pyp=1 end
+	if (string.find(nzm.name, "pipeworks:pipe_") ~= nil) then pzm=1 end
+	if (string.find(nzp.name, "pipeworks:pipe_") ~= nil) then pzp=1 end
+
+	local nsurround = pxm..pxp..pym..pyp..pzm..pzp
+	
+	if nsurround == "000000" then nsurround = "110000" end
+
+	minetest.env:add_node(pos, { name = "pipeworks:pipe_"..nsurround..state })
+end
+
+-- now define the nodes!
+
+for xm = 0, 1 do
+for xp = 0, 1 do
+for ym = 0, 1 do
+for yp = 0, 1 do
+for zm = 0, 1 do
+for zp = 0, 1 do
+	outboxes = {}
+	outsel = {}
+	outimgs = {}
+	if yp==1 then
+		addbox(outboxes, topstub)
+		table.insert(outsel, selectboxes[4])
+		table.insert(outimgs, "pipeworks_pipe_end.png")
+	else
+		table.insert(outimgs, "pipeworks_plain.png")
+	end
+	if ym==1 then
+		addbox(outboxes, bottomstub)
+		table.insert(outsel, selectboxes[3])
+		table.insert(outimgs, "pipeworks_pipe_end.png")
+	else
+		table.insert(outimgs, "pipeworks_plain.png")
+	end
+	if xp==1 then
+		addbox(outboxes, rightstub)
+		table.insert(outsel, selectboxes[2])
+		table.insert(outimgs, "pipeworks_pipe_end.png")
+	else
+		table.insert(outimgs, "pipeworks_plain.png")
+	end
+	if xm==1 then
+		addbox(outboxes, leftstub)
+		table.insert(outsel, selectboxes[1])
+		table.insert(outimgs, "pipeworks_pipe_end.png")
+	else
+		table.insert(outimgs, "pipeworks_plain.png")
+	end
+	if zp==1 then
+		addbox(outboxes, backstub)
+		table.insert(outsel, selectboxes[6])
+		table.insert(outimgs, "pipeworks_pipe_end.png")
+	else
+		table.insert(outimgs, "pipeworks_plain.png")
+	end
+	if zm==1 then
+		addbox(outboxes, frontstub)
+		table.insert(outsel, selectboxes[5])
+		table.insert(outimgs, "pipeworks_pipe_end.png")
+	else
+		table.insert(outimgs, "pipeworks_plain.png")
+	end
+
+	jx = xp+xm
+	jy = yp+ym
+	jz = zp+zm
+
+	if (jx==1 and jy==1 and jz~=1) or (jx==1 and jy~=1 and jz==1) or (jx~= 1 and jy==1 and jz==1) then
+		addbox(outboxes, bendsphere)
+	end
+
+	if (jx==2 and jy~=2 and jz~=2) then
+		table.remove(outimgs, 5)
+		table.remove(outimgs, 5)
+		table.insert(outimgs, 5, "pipeworks_windowed_XXXXX.png")
+		table.insert(outimgs, 5, "pipeworks_windowed_XXXXX.png")
+	end
+
+	if (jx~=2 and jy~=2 and jz==2) or (jx~=2 and jy==2 and jz~=2) then
+		table.remove(outimgs, 3)
+		table.remove(outimgs, 3)
+		table.insert(outimgs, 3, "pipeworks_windowed_XXXXX.png")
+		table.insert(outimgs, 3, "pipeworks_windowed_XXXXX.png")
+	end
+
+	pname = xm..xp..ym..yp..zm..zp
 
-for node in ipairs(nodenames) do
-	minetest.register_node("pipeworks:"..nodenames[node], {
-		description = "Empty Pipe ("..descriptions[node]..")",
+	minetest.register_node("pipeworks:pipe_"..pname.."_empty", {
+		description = "Pipe segment (empty, "..pname..").",
 		drawtype = "nodebox",
-		tiles = fix_image_names(node, "_empty"),
+		tiles = fix_newpipe_names(outimgs, "_empty"),
 		paramtype = "light",
-		paramtype2 = "facedir",
 		selection_box = {
-              		type = "fixed",
-			fixed = selectionboxes[node],
+	             	type = "fixed",
+			fixed = outsel
 		},
 		node_box = {
 			type = "fixed",
-			fixed = nodeboxes[node]
+			fixed = outboxes
 		},
 		groups = {snappy=3, pipe=1},
 		sounds = default.node_sound_wood_defaults(),
 		walkable = true,
 		stack_max = 99,
-		drop = "pipeworks:pipe"
+		drop = "pipeworks:pipe_110000_empty",
+		after_place_node = function(pos)
+			autoroute({ x=pos.x-1, y=pos.y  , z=pos.z   }, "_empty")
+			autoroute({ x=pos.x+1, y=pos.y  , z=pos.z   }, "_empty")
+			autoroute({ x=pos.x  , y=pos.y-1, z=pos.z   }, "_empty")
+			autoroute({ x=pos.x  , y=pos.y+1, z=pos.z   }, "_empty")
+			autoroute({ x=pos.x  , y=pos.y  , z=pos.z-1 }, "_empty")
+			autoroute({ x=pos.x  , y=pos.y  , z=pos.z+1 }, "_empty")
+			autoroute(pos, "_empty")
+		end,
+		after_dig_node = function(pos)
+			autoroute({ x=pos.x-1, y=pos.y  , z=pos.z   }, "_empty")
+			autoroute({ x=pos.x+1, y=pos.y  , z=pos.z   }, "_empty")
+			autoroute({ x=pos.x  , y=pos.y-1, z=pos.z   }, "_empty")
+			autoroute({ x=pos.x  , y=pos.y+1, z=pos.z   }, "_empty")
+			autoroute({ x=pos.x  , y=pos.y  , z=pos.z-1 }, "_empty")
+			autoroute({ x=pos.x  , y=pos.y  , z=pos.z+1 }, "_empty")
+		end
 	})
 
-	minetest.register_node("pipeworks:"..nodenames[node].."_loaded", {
-		description = "Loaded Pipe ("..descriptions[node]..")",
+	minetest.register_node("pipeworks:pipe_"..pname.."_loaded", {
+		description = "Pipe segment (loaded, "..pname..").",
 		drawtype = "nodebox",
-		tiles = fix_image_names(node, "_loaded"),
+		tiles = fix_newpipe_names(outimgs, "_loaded"),
 		paramtype = "light",
-		paramtype2 = "facedir",
 		selection_box = {
-              		type = "fixed",
-			fixed = selectionboxes[node],
-		},	
+	             	type = "fixed",
+			fixed = outsel
+		},
 		node_box = {
 			type = "fixed",
-			fixed = nodeboxes[node]
+			fixed = outboxes
 		},
 		groups = {snappy=3, pipe=1},
 		sounds = default.node_sound_wood_defaults(),
 		walkable = true,
 		stack_max = 99,
-		drop = "pipeworks:pipe"
+		drop = "pipeworks:pipe_110000_loaded",
+		after_place_node = function(pos)
+			autoroute({ x=pos.x-1, y=pos.y  , z=pos.z   }, "_loaded")
+			autoroute({ x=pos.x+1, y=pos.y  , z=pos.z   }, "_loaded")
+			autoroute({ x=pos.x  , y=pos.y-1, z=pos.z   }, "_loaded")
+			autoroute({ x=pos.x  , y=pos.y+1, z=pos.z   }, "_loaded")
+			autoroute({ x=pos.x  , y=pos.y  , z=pos.z-1 }, "_loaded")
+			autoroute({ x=pos.x  , y=pos.y  , z=pos.z+1 }, "_loaded")
+			autoroute(pos, "_loaded")
+		end,
+		after_dig_node = function(pos)
+			autoroute({ x=pos.x-1, y=pos.y  , z=pos.z   }, "_loaded")
+			autoroute({ x=pos.x+1, y=pos.y  , z=pos.z   }, "_loaded")
+			autoroute({ x=pos.x  , y=pos.y-1, z=pos.z   }, "_loaded")
+			autoroute({ x=pos.x  , y=pos.y+1, z=pos.z   }, "_loaded")
+			autoroute({ x=pos.x  , y=pos.y  , z=pos.z-1 }, "_loaded")
+			autoroute({ x=pos.x  , y=pos.y  , z=pos.z+1 }, "_loaded")
+		end
 	})
 end
+end
+end
+end
+end
+end
+
+-- the pump module
+
+pumpboxes = {}
+addbox(pumpboxes, leftstub)
+addbox(pumpboxes, pumpbody)
+addbox(pumpboxes, rightstub)
+
+minetest.register_node("pipeworks:pump_on", {
+	description = "Pump Module (on)",
+	drawtype = "nodebox",
+	tiles = {
+		"pipeworks_pump_sides.png",
+		"pipeworks_pump_sides.png",
+		"pipeworks_pump_ends.png",
+		"pipeworks_pump_ends.png",
+		"pipeworks_pump_on.png",
+		"pipeworks_pump_on.png"
+	},
+	paramtype = "light",
+	selection_box = {
+             	type = "fixed",
+		fixed = { -0.5, -0.5, -0.5, 0.5, 0.5, 0.5 }
+	},
+	node_box = {
+		type = "fixed",
+		fixed = pumpboxes
+	},
+	groups = {snappy=3, pipe=1},
+	sounds = default.node_sound_wood_defaults(),
+	walkable = true,
+	stack_max = 99,
+})
+
+minetest.register_node("pipeworks:pump_off", {
+	description = "Pump Module (off)",
+	drawtype = "nodebox",
+	tiles = {
+		"pipeworks_pump_sides.png",
+		"pipeworks_pump_sides.png",
+		"pipeworks_pump_ends.png",
+		"pipeworks_pump_ends.png",
+		"pipeworks_pump_off.png",
+		"pipeworks_pump_off.png"
+	},
+	paramtype = "light",
+	selection_box = {
+             	type = "fixed",
+		fixed = { -0.5, -0.5, -0.5, 0.5, 0.5, 0.5 }
+	},
+	node_box = {
+		type = "fixed",
+		fixed = pumpboxes
+	},
+	groups = {snappy=3, pipe=1},
+	sounds = default.node_sound_wood_defaults(),
+	walkable = true,
+	stack_max = 99,
+})
+
+-- valve module
+
+valveboxes = {}
+addbox(valveboxes, leftstub)
+addbox(valveboxes, valvebody)
+addbox(valveboxes, valvehandle_off)
+addbox(valveboxes, rightstub)
+
+minetest.register_node("pipeworks:valve_off", {
+	description = "Valve (off)",
+	drawtype = "nodebox",
+	tiles = {
+		"pipeworks_valvebody_top_off.png",
+		"pipeworks_valvebody_bottom.png",
+		"pipeworks_valvebody_ends.png",
+		"pipeworks_valvebody_ends.png",
+		"pipeworks_valvebody_sides.png",
+		"pipeworks_valvebody_sides.png",
+	},
+	paramtype = "light",
+	selection_box = {
+             	type = "fixed",
+		fixed = { -5/16, -4/16, -5/16, 6/16, 8/16, 6/16 }
+	},
+	node_box = {
+		type = "fixed",
+		fixed = valveboxes
+	},
+	groups = {snappy=3, pipe=1},
+	sounds = default.node_sound_wood_defaults(),
+	walkable = true,
+	stack_max = 99,
+})
+
+valveboxes = {}
+addbox(valveboxes, leftstub)
+addbox(valveboxes, valvebody)
+addbox(valveboxes, valvehandle_on)
+addbox(valveboxes, rightstub)
+
+minetest.register_node("pipeworks:valve_on", {
+	description = "Valve (on)",
+	drawtype = "nodebox",
+	tiles = {
+		"pipeworks_valvebody_top_on.png",
+		"pipeworks_valvebody_bottom.png",
+		"pipeworks_valvebody_ends.png",
+		"pipeworks_valvebody_ends.png",
+		"pipeworks_valvebody_sides.png",
+		"pipeworks_valvebody_sides.png",
+	},
+	paramtype = "light",
+	selection_box = {
+             	type = "fixed",
+		fixed = { -5/16, -4/16, -5/16, 6/16, 8/16, 6/16 }
+	},
+	node_box = {
+		type = "fixed",
+		fixed = valveboxes
+	},
+	groups = {snappy=3, pipe=1},
+	sounds = default.node_sound_wood_defaults(),
+	walkable = true,
+	stack_max = 99,
+})
+
+minetest.register_on_punchnode(function (pos, node)
+	if node.name=="pipeworks:valve_on" then 
+		minetest.env:add_node(pos, { name = "pipeworks:valve_off" })
+	end
+end)
+
+minetest.register_on_punchnode(function (pos, node)
+	if node.name=="pipeworks:valve_off" then 
+		minetest.env:add_node(pos, { name = "pipeworks:valve_on" })
+	end
+end)
+
+
+minetest.register_on_punchnode(function (pos, node)
+	if node.name=="pipeworks:pump_on" then 
+		minetest.env:add_node(pos, { name = "pipeworks:pump_off" })
+	end
+end)
+
+minetest.register_on_punchnode(function (pos, node)
+	if node.name=="pipeworks:pump_off" then 
+		minetest.env:add_node(pos, { name = "pipeworks:pump_on" })
+	end
+end)
 
 print("Pipeworks loaded!")