add wallmounted light signal

advtrains/advtrains/signals.lua

@@ -1,5 +1,33 @@
 --advtrains by orwell96
 --signals.lua
+
+--this code /should/ work but does not.
+local mrules_wallsignal_l, mrules_wallsignal_r
+if mesecon then
+	mrules_wallsignal_l = function(node, isright)
+		local rules = mesecon.rules.buttonlike
+		if node.param2 == 1 then
+			rules=mesecon.rotate_rules_left(rules)
+		elseif node.param2 == 2 then
+			rules=mesecon.rotate_rules_right(mesecon.rotate_rules_right(rules))
+		elseif node.param2 == 3 then
+			rules=mesecon.rotate_rules_right(rules)
+		end
+		return rules
+	end
+	mrules_wallsignal_r = function(node)
+		local rules = mesecon.rules.buttonlike
+		if node.param2 == 3 then
+			rules=mesecon.rotate_rules_left(rules)
+		elseif node.param2 == 0 then
+			rules=mesecon.rotate_rules_right(mesecon.rotate_rules_right(rules))
+		elseif node.param2 == 1 then
+			rules=mesecon.rotate_rules_right(rules)
+		end
+		return rules
+	end
+end
+
 for r,f in pairs({on={as="off", ls="green", als="red"}, off={as="on", ls="red", als="green"}}) do
 
 	advtrains.trackplacer.register_tracktype("advtrains:retrosignal", "")
@@ -32,6 +60,7 @@ for r,f in pairs({on={as="off", ls="green", als="red"}, off={as="on", ls="red",
 				save_in_nodedb=1,
 			},
 			mesecons = {effector = {
+				rules=advtrains.meseconrules,
 				["action_"..f.as] = function (pos, node)
 					advtrains.ndb.swap_node(pos, {name = "advtrains:retrosignal_"..f.as..rotation, param2 = node.param2})
 				end
@@ -65,6 +94,7 @@ for r,f in pairs({on={as="off", ls="green", als="red"}, off={as="on", ls="red",
 			light_source = 1,
 			sunlight_propagates=true,
 			mesecons = {effector = {
+				rules=advtrains.meseconrules,
 				["action_"..f.as] = function (pos, node)
 					advtrains.ndb.swap_node(pos, {name = "advtrains:signal_"..f.as..rotation, param2 = node.param2})
 				end
@@ -83,4 +113,88 @@ for r,f in pairs({on={as="off", ls="green", als="red"}, off={as="on", ls="red",
 		})
 		advtrains.trackplacer.add_worked("advtrains:signal", r, rotation, nil)
 	end
+	
+	local crea=1
+	if r=="off" then crea=0 end
+	
+	--tunnel signals. no rotations.
+	minetest.register_node("advtrains:signal_wall_l_"..r, {
+		drawtype = "mesh",
+		paramtype="light",
+		paramtype2="facedir",
+		walkable = false,
+		selection_box = {
+			type = "fixed",
+			fixed = {-1/2, -1/2, -1/4, 0, 1/2, 1/4},
+		},
+		mesh = "advtrains_signal_wall_l.b3d",
+		tiles = {"advtrains_signal_wall_"..r..".png"},
+		drop="advtrains:signal_wall_l_off",
+		description=attrans("Wallmounted Signal, left"),
+		groups = {
+			choppy=3,
+			not_blocking_trains=1,
+			not_in_creative_inventory=crea,
+			save_in_nodedb=1,
+		},
+		light_source = 1,
+		sunlight_propagates=true,
+		mesecons = {effector = {
+			mrules_wallsignal_l,
+			["action_"..f.as] = function (pos, node)
+				advtrains.ndb.swap_node(pos, {name = "advtrains:signal_wall_l_"..f.as, param2 = node.param2})
+			end
+		}},
+		luaautomation = {
+			getstate = f.ls,
+			setstate = function(pos, node, newstate)
+				if newstate == f.als then
+					advtrains.ndb.swap_node(pos, {name = "advtrains:signal_wall_l_"..f.as, param2 = node.param2})
+				end
+			end,
+		},
+		on_rightclick=function(pos, node, clicker)
+			advtrains.ndb.swap_node(pos, {name = "advtrains:signal_wall_l_"..f.as, param2 = node.param2})
+		end,
+	})
+	minetest.register_node("advtrains:signal_wall_r_"..r, {
+		drawtype = "mesh",
+		paramtype="light",
+		paramtype2="facedir",
+		walkable = false,
+		selection_box = {
+			type = "fixed",
+			fixed = {0, -1/2, -1/4, 1/2, 1/2, 1/4},
+		},
+		mesh = "advtrains_signal_wall_r.b3d",
+		tiles = {"advtrains_signal_wall_"..r..".png"},
+		drop="advtrains:signal_wall_r_off",
+		description=attrans("Wallmounted Signal, right"),
+		groups = {
+			choppy=3,
+			not_blocking_trains=1,
+			not_in_creative_inventory=crea,
+			save_in_nodedb=1,
+		},
+		light_source = 1,
+		sunlight_propagates=true,
+		mesecons = {effector = {
+			rules = mrules_wallsignal_r,
+			["action_"..f.as] = function (pos, node)
+				advtrains.ndb.swap_node(pos, {name = "advtrains:signal_wall_r_"..f.as, param2 = node.param2})
+			end
+		}},
+		luaautomation = {
+			getstate = f.ls,
+			setstate = function(pos, node, newstate)
+				if newstate == f.als then
+					advtrains.ndb.swap_node(pos, {name = "advtrains:signal_wall_r_"..f.as, param2 = node.param2})
+				end
+			end,
+		},
+		on_rightclick=function(pos, node, clicker)
+			advtrains.ndb.swap_node(pos, {name = "advtrains:signal_wall_r_"..f.as, param2 = node.param2})
+		end,
+	})
+	
 end