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change.log

@@ -87,3 +87,14 @@ v0.1.14
 v0.1.15
 *	Fixed bug call to clear_map in fan on_blast.
 *	Added pistons.
+
+
+v0.1.16
+*	Fixed piston interaction with non-walkable nodes.
+
+
+v0.1.17
+*	Fixed unintended global variable in pistons.lua.
+
+v0.1.18
+*	Added mesecons through wire.

crafting.lua

@@ -49,7 +49,21 @@ minetest.register_craft( {
 		{ "default:iron_lump", "default:coalblock" },
 	},
 })
-end
+end -- minetest.global_exists ("fire")
+
+
+
+if utils.mesecon_supported then
+
+minetest.register_craft( {
+	output = "lwcomponents:through_wire_off 2",
+	recipe = {
+		{ "", "mesecons:wire_00000000_off" },
+		{ "mesecons:wire_00000000_off", "" },
+	},
+})
+
+end -- utils.mesecon_supported
 
 
 

docs/through_wire.txt

@@ -0,0 +1,7 @@
+Mesecons Through Wire
+---------------------
+* This block is only available if mesecons is loaded.
+
+Will transmit mesecons power when placed one to two blocks apart opposing
+each other, through solid blocks or open space. Can also be used as a mesecons
+crossover.

init.lua

@@ -1,4 +1,4 @@
-local version = "0.1.15"
+local version = "0.1.18"
 local mod_storage = minetest.get_mod_storage ()
 
 
@@ -35,6 +35,7 @@ loadfile (modpath.."/conduit.lua") (utils, mod_storage)
 loadfile (modpath.."/cannon.lua") (utils)
 loadfile (modpath.."/cannon_shell.lua") (utils)
 loadfile (modpath.."/pistons.lua") (utils)
+loadfile (modpath.."/through_wire.lua") (utils)
 loadfile (modpath.."/extras.lua") (utils)
 loadfile (modpath.."/digiswitch.lua") (utils)
 loadfile (modpath.."/movefloor.lua") (utils)

license.txt

@@ -13,6 +13,8 @@ without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
 See the GNU Lesser General Public License for more details:
 https://www.gnu.org/licenses/old-licenses/lgpl-2.1.html
 
+Mesecons through wire code was adapted from mesecons_receiver.
+
 
 
 lwsiren-buzz.ogg

pistons.lua

@@ -52,7 +52,7 @@ local function push_entities (pos, vec)
 		if tnode.name == "air" then
 			can_move = true
 		else
-			tdef = utils.find_item_def (tnode.name)
+			local tdef = utils.find_item_def (tnode.name)
 
 			can_move = tdef and not tdef.walkable
 		end
@@ -94,7 +94,9 @@ local function push_nodes (pos, extent)
 				return false
 			end
 
-			if tnode.name == "air" then
+			local tdef = utils.find_item_def (tnode.name)
+
+			if tnode.name == "air" or (tdef and not tdef.walkable) then
 				count = i - 1
 				break
 			end
@@ -150,8 +152,10 @@ local function pull_node (pos, extent)
 		local vec = direction_vector (node)
 		local cpos = vector.add (pos, vector.multiply (vec, extent))
 		local cnode = utils.get_far_node (cpos)
+		local cdef = cnode and utils.find_item_def (cnode.name)
+
+		if cnode and cnode.name ~= "air" and cdef and cdef.walkable then
 
-		if cnode and cnode ~= "air" then
 			local cmeta = minetest.get_meta (cpos)
 
 			if cmeta then
@@ -182,8 +186,11 @@ local function place_blank (pos, extent)
 		local vec = direction_vector (node)
 		local blank_pos = vector.add (pos, vector.multiply (vec, extent))
 		local blank_node = utils.get_far_node (blank_pos)
+		local blank_def = blank_node and utils.find_item_def (blank_node.name)
+
+		if blank_node and blank_node.name == "air" or
+			(blank_def and not blank_def.walkable) then
 
-		if blank_node and blank_node.name == "air" then
 			minetest.set_node (blank_pos,
 									 {
 										name = "lwcomponents:piston_blank_"..tostring (extent),
@@ -680,7 +687,7 @@ minetest.register_node("lwcomponents:piston_blank_2", {
 
 
 minetest.register_node("lwcomponents:piston", {
-	description = S("Piston"),
+	description = S("Double Piston"),
 	tiles = { "lwcomponents_piston_top.png", "lwcomponents_piston_bottom.png",
 				 "lwcomponents_piston_right.png", "lwcomponents_piston_left.png",
 				 "lwcomponents_piston_base.png", "lwcomponents_piston_pusher.png" },
@@ -710,7 +717,7 @@ minetest.register_node("lwcomponents:piston", {
 
 
 minetest.register_node("lwcomponents:piston_1", {
-	description = S("Piston"),
+	description = S("Double Piston"),
 	drawtype = "mesh",
 	mesh = "piston_normal_1.obj",
 	tiles = { "lwcomponents_piston.png" },
@@ -757,7 +764,7 @@ minetest.register_node("lwcomponents:piston_1", {
 
 
 minetest.register_node("lwcomponents:piston_2", {
-	description = S("Piston"),
+	description = S("Double Piston"),
 	drawtype = "mesh",
 	mesh = "piston_normal_2.obj",
 	tiles = { "lwcomponents_piston.png" },
@@ -804,7 +811,7 @@ minetest.register_node("lwcomponents:piston_2", {
 
 
 minetest.register_node("lwcomponents:piston_sticky", {
-	description = S("Sticky Piston"),
+	description = S("Double Sticky Piston"),
 	tiles = { "lwcomponents_piston_top.png", "lwcomponents_piston_bottom.png",
 				 "lwcomponents_piston_right.png", "lwcomponents_piston_left.png",
 				 "lwcomponents_piston_base.png", "lwcomponents_piston_pusher_sticky.png" },
@@ -834,7 +841,7 @@ minetest.register_node("lwcomponents:piston_sticky", {
 
 
 minetest.register_node("lwcomponents:piston_sticky_1", {
-	description = S("Sticky Piston"),
+	description = S("Double Sticky Piston"),
 	drawtype = "mesh",
 	mesh = "piston_sticky_1.obj",
 	tiles = { "lwcomponents_piston.png" },
@@ -881,7 +888,7 @@ minetest.register_node("lwcomponents:piston_sticky_1", {
 
 
 minetest.register_node("lwcomponents:piston_sticky_2", {
-	description = S("Sticky Piston"),
+	description = S("Double Sticky Piston"),
 	drawtype = "mesh",
 	mesh = "piston_sticky_2.obj",
 	tiles = { "lwcomponents_piston.png" },

readme.txt

@@ -13,7 +13,7 @@ CC BY-SA 3.0
 
 Version
 =======
-0.1.15
+0.1.18
 
 
 Minetest Version
@@ -66,6 +66,7 @@ Various components for mesecons and digilines.
 *	Double (optionally single) reach pistons and sticky pistons.
 *	Digiswitch, digilines controlled mesecons power.
 *	Movefloor, similar to vertical mesecons movestone.
+*	Mesecons Through Wire, transmits through 1 to 2 solid blocks.
 *	Solid color conductor blocks, same as Solid Color Block but also mesecons
 	and digilines conductor.
 

through_wire.lua

@@ -0,0 +1,80 @@
+local utils = ...
+local S = utils.S
+
+
+
+if utils.mesecon_supported then
+
+
+
+local through_wire_get_rules = function (node)
+	local rules = { {x = -1, y = 0, z = 0},
+						 {x =  2, y = 0, z = 0},
+						 {x =  3, y = 0, z = 0} }
+
+	if node.param2 == 2 then
+		rules = mesecon.rotate_rules_left(rules)
+	elseif node.param2 == 3 then
+		rules = mesecon.rotate_rules_right(mesecon.rotate_rules_right(rules))
+	elseif node.param2 == 0 then
+		rules = mesecon.rotate_rules_right(rules)
+	end
+
+	return rules
+end
+
+
+
+mesecon.register_node ("lwcomponents:through_wire", {
+	description = S("Mesecons Through Wire"),
+	drawtype = "nodebox",
+	paramtype = "light",
+	paramtype2 = "facedir",
+	is_ground_content = false,
+	sunlight_propagates = true,
+	walkable = false,
+	on_rotate = false,
+	selection_box = {
+		type = "fixed",
+		fixed = { -3/16, -8/16, -8/16, 3/16, 3/16, 8/16 }
+	},
+	node_box = {
+		type = "fixed",
+		fixed = {
+			{ -3/16, -3/16, 13/32        , 3/16,  3/16  , 8/16        }, -- the smaller bump
+			{ -1/32, -1/32, 1/2          , 1/32,  1/32  , 3/2         }, -- the wire through the block
+			{ -2/32, -1/2 , 0.5002-3/32  , 2/32,  0     , 0.5         }, -- the vertical wire bit
+			{ -2/32, -1/2 , -16/32+0.001 , 2/32,  -14/32,  7/16+0.002 }  -- the horizontal wire
+		}
+	},
+	drop = "lwcomponents:through_wire_off",
+	sounds = default.node_sound_defaults(),
+}, {
+	tiles = { "mesecons_wire_off.png" },
+	groups = { dig_immediate = 3 },
+	mesecons = {
+		conductor = {
+			state = mesecon.state.off,
+			rules = through_wire_get_rules,
+			onstate = "lwcomponents:through_wire_on"
+		}
+	}
+}, {
+	tiles = { "mesecons_wire_on.png" },
+	groups = { dig_immediate = 3, not_in_creative_inventory = 1 },
+	mesecons = {
+		conductor = {
+			state = mesecon.state.on,
+			rules = through_wire_get_rules,
+			offstate = "lwcomponents:through_wire_off"
+		}
+	}
+})
+
+
+
+end -- utils.mesecon_supported
+
+
+
+--