Code opaque block redstone power rule (part 1)

mods/ITEMS/REDSTONE/mesecons/internal.lua

@@ -37,7 +37,7 @@
 -- HIGH-LEVEL Internals
 -- mesecon.is_power_on(pos)				--> Returns true if pos emits power in any way
 -- mesecon.is_power_off(pos)				--> Returns true if pos does not emit power in any way
--- mesecon.is_powered(pos)				--> Returns true if pos is powered by a receptor or a conductor
+-- mesecon.is_powered(pos)				--> Returns true if pos is powered by a receptor, a conductor or an opaque block
 
 -- RULES ROTATION helpers
 -- mesecon.rotate_rules_right(rules)
@@ -78,6 +78,8 @@ function mesecon.get_any_outputrules(node)
 		return mesecon.conductor_get_rules(node)
 	elseif mesecon.is_receptor(node.name) then
 		return mesecon.receptor_get_rules(node)
+	elseif minetest.get_item_group(node.name, "opaque") == 1 then
+		return mesecon.rules.alldirs
 	end
 end
 
@@ -88,6 +90,8 @@ function mesecon.get_any_inputrules(node)
 		return mesecon.conductor_get_rules(node)
 	elseif mesecon.is_effector(node.name) then
 		return mesecon.effector_get_rules(node)
+	elseif minetest.get_item_group(node.name, "opaque") == 1 then
+		return mesecon.rules.alldirs
 	end
 end
 
@@ -512,37 +516,45 @@ function mesecon.rules_link_rule_all_inverted(input, rule)
 	return rules
 end
 
-function mesecon.is_powered(pos, rule)
+function mesecon.is_powered(pos, rule, depth, sourcepos)
+	if depth == nil then depth = 0 end
+	if depth > 1 then
+		return false
+	end
 	local node = mesecon.get_node_force(pos)
 	local rules = mesecon.get_any_inputrules(node)
-	if not rules then return false end
+	if not rules then
+		return false
+	end
 
 	-- List of nodes that send out power to pos
-	local sourcepos = {}
+	if sourcepos == nil then
+		sourcepos = {}
+	end
+
+	local function power_walk(pos, sourcepos, rulenames, rule, depth)
+		for _, rname in ipairs(rulenames) do
+			local np = vector.add(pos, rname)
+			local nn = mesecon.get_node_force(np)
+			if (mesecon.is_conductor_on (nn, mesecon.invertRule(rname))
+			or mesecon.is_receptor_on (nn.name)) then
+				table.insert(sourcepos, np)
+			elseif depth == 0 and minetest.get_item_group(nn.name, "opaque") == 1 then
+				local more_sourcepos = mesecon.is_powered(np, nil, depth + 1, sourcepos)
+				mesecon.mergetable(sourcepos, more_sourcepos)
+			end
+		end
+		return sourcepos
+	end
 
 	if not rule then
 		for _, rule in ipairs(mesecon.flattenrules(rules)) do
 			local rulenames = mesecon.rules_link_rule_all_inverted(pos, rule)
-			for _, rname in ipairs(rulenames) do
-				local np = vector.add(pos, rname)
-				local nn = mesecon.get_node_force(np)
-
-				if (mesecon.is_conductor_on(nn, mesecon.invertRule(rname))
-				or mesecon.is_receptor_on(nn.name)) then
-					table.insert(sourcepos, np)
-				end
-			end
+			sourcepos = power_walk(pos, sourcepos, rulenames, rule, depth)
 		end
 	else
 		local rulenames = mesecon.rules_link_rule_all_inverted(pos, rule)
-		for _, rname in ipairs(rulenames) do
-			local np = vector.add(pos, rname)
-			local nn = mesecon.get_node_force(np)
-			if (mesecon.is_conductor_on (nn, mesecon.invertRule(rname))
-			or mesecon.is_receptor_on (nn.name)) then
-				table.insert(sourcepos, np)
-			end
-		end
+		sourcepos = power_walk(pos, sourcepos, rulenames, rule, depth)
 	end
 
 	-- Return FALSE if not powered, return list of sources if is powered
@@ -550,4 +562,3 @@ function mesecon.is_powered(pos, rule)
 	else return sourcepos end
 end
 
-

mods/ITEMS/REDSTONE/mesecons/services.lua

@@ -50,6 +50,23 @@ mesecon.on_placenode = function(pos, node)
 			end
 		end
 	end
+
+	if minetest.get_item_group(node.name, "opaque") == 1 then
+		local neighbors = mesecon.mcl_get_neighbors(pos)
+		local is_powered = mesecon.is_powered(pos)
+		if is_powered then
+			for n=1, #neighbors do
+				local npos = neighbors[n].pos
+				local nnode = minetest.get_node(npos)
+				if mesecon.is_conductor_off(nnode) then
+					mesecon.receptor_on(npos, mesecon.conductor_get_rules(nnode))
+				elseif mesecon.is_effector_off(nnode.name) then
+					mesecon.changesignal(npos, nnode, neighbors[n].link, mesecon.state.on, 1)
+					mesecon.activate(npos, nnode, neighbors[n].link, 1)
+				end
+			end
+		end
+	end
 end
 
 mesecon.on_dignode = function(pos, node)
@@ -58,7 +75,21 @@ mesecon.on_dignode = function(pos, node)
 	elseif mesecon.is_receptor_on(node.name) then
 		mesecon.receptor_off(pos, mesecon.receptor_get_rules(node))
 	end
-
+	if minetest.get_item_group(node.name, "opaque") == 1 then
+		local sources = mesecon.is_powered(pos)
+		local neighbors = mesecon.mcl_get_neighbors(pos)
+		for n=1, #neighbors do
+			local npos = neighbors[n].pos
+			local nlink = neighbors[n].link
+			local nnode = minetest.get_node(npos)
+			if mesecon.is_conductor_on(nnode) and not mesecon.is_powered(npos) then
+				mesecon.receptor_off(npos, mesecon.conductor_get_rules(nnode))
+			elseif mesecon.is_effector_on(nnode.name) and not mesecon.is_powered(npos) then
+				mesecon.changesignal(npos, nnode, nlink, mesecon.state.off, 1)
+				mesecon.deactivate(npos, nnode, nlink, 1)
+			end
+		end
+	end
 	mesecon.execute_autoconnect_hooks_queue(pos, node)
 end
 

mods/ITEMS/REDSTONE/mesecons/util.lua

@@ -147,14 +147,7 @@ end
 -- (nodes which touch the sides of pos).
 -- NOT PART OF ORIGINAL MESECONS!
 function mesecon.mcl_get_neighbors(pos)
-	local r = {
-		{ x= 0, y= 0, z=-1 },
-		{ x= 0, y= 0, z= 1 },
-		{ x= 0, y=-1, z= 0 },
-		{ x= 0, y= 1, z= 0 },
-		{ x=-1, y= 0, z= 0 },
-		{ x= 1, y= 0, z= 0 },
-	}
+	local r = mesecon.rules.alldirs
 	local e = {}
 	for i=1, #r do
 		table.insert(e, { pos = vector.add(pos, r[i]), link = r[i] })