Fix #155 (option 2 used). Remove non-ActionQueue system. Enable overheat for more than 20 actions per second on lua- / microcontrollers and gates.

Fix a bug where a burnt luacontroller didn't have the correct pin-states as the burnt controller does not register any changes from outside.

mesecons/actionqueue.lua

@@ -19,12 +19,6 @@ function mesecon.queue:add_action(pos, func, params, time, overwritecheck, prior
 				owcheck=(overwritecheck and mesecon:tablecopy(overwritecheck)) or nil,
 				priority=priority}
 
-	-- if not using the queue, (MESECONS_GLOBALSTEP off), just execute the function an we're done
-	if not MESECONS_GLOBALSTEP and action.time == 0 then
-		mesecon.queue:execute(action)
-		return
-	end
-
 	local toremove = nil
 	-- Otherwise, add the action to the queue
 	if overwritecheck then -- check if old action has to be overwritten / removed:

mesecons/init.lua

@@ -79,7 +79,6 @@ mesecon.queue:add_function("receptor_on", function (pos, rules)
 	rules = rules or mesecon.rules.default
 
 	-- if area (any of the rule targets) is not loaded, keep trying and call this again later
-	if MESECONS_GLOBALSTEP then -- trying to enable resuming with globalstep disabled would cause an endless loop
 	for _, rule in ipairs(mesecon:flattenrules(rules)) do
 		local np = mesecon:addPosRule(pos, rule)
 		-- if area is not loaded, keep trying
@@ -88,7 +87,6 @@ mesecon.queue:add_function("receptor_on", function (pos, rules)
 			return
 		end
 	end
-	end
 
 	-- execute action
 	for _, rule in ipairs(mesecon:flattenrules(rules)) do
@@ -108,7 +106,6 @@ mesecon.queue:add_function("receptor_off", function (pos, rules)
 	rules = rules or mesecon.rules.default
 
 	-- if area (any of the rule targets) is not loaded, keep trying and call this again later
-	if MESECONS_GLOBALSTEP then
 	for _, rule in ipairs(mesecon:flattenrules(rules)) do
 		local np = mesecon:addPosRule(pos, rule)
 		if minetest.get_node_or_nil(np) == nil then
@@ -116,7 +113,6 @@ mesecon.queue:add_function("receptor_off", function (pos, rules)
 			return
 		end
 	end
-	end
 
 	for _, rule in ipairs(mesecon:flattenrules(rules)) do
 		local np = mesecon:addPosRule(pos, rule)

mesecons/internal.lua

@@ -412,9 +412,7 @@ function mesecon:turnon(pos, rulename, recdepth)
 end
 
 mesecon.queue:add_function("turnon", function (pos, rulename, recdepth)
-	if (MESECONS_GLOBALSTEP) then -- do not resume if we don't use globalstep - that would cause an endless loop
 	mesecon:turnon(pos, rulename, recdepth)
-	end
 end)
 
 function mesecon:turnoff(pos, rulename, recdepth)
@@ -455,9 +453,7 @@ function mesecon:turnoff(pos, rulename, recdepth)
 end
 
 mesecon.queue:add_function("turnoff", function (pos, rulename, recdepth)
-	if (MESECONS_GLOBALSTEP) then -- do not resume if we don't use globalstep - that would cause an endless loop
 	mesecon:turnoff(pos, rulename, recdepth)
-	end
 end)
 
 

mesecons/services.lua

@@ -1,3 +1,5 @@
+-- Dig and place services
+
 mesecon.on_placenode = function (pos, node)
 	-- Receptors: Send on signal when active
 	if mesecon:is_receptor_on(node.name) then
@@ -37,15 +39,38 @@ mesecon.on_dignode = function (pos, node)
 	end
 end
 
-minetest.register_abm({
-	nodenames = {"group:overheat"},
-	interval = 1.0,
-	chance = 1,
-	action = function(pos, node, active_object_count, active_object_count_wider)
-		local meta = minetest.get_meta(pos)
-		meta:set_int("heat",0)
-	end,
-})
-
 minetest.register_on_placenode(mesecon.on_placenode)
 minetest.register_on_dignode(mesecon.on_dignode)
+
+-- Overheating service for fast circuits
+
+-- returns true if heat is too high
+mesecon.do_overheat = function(pos)
+	local meta = minetest.get_meta(pos)
+	local heat = meta:get_int("heat") or 0
+
+	heat = heat + 1
+	meta:set_int("heat", heat)
+
+	if heat < OVERHEAT_MAX then
+		mesecon.queue:add_action(pos, "cooldown", {}, 1, nil, 0)
+	else
+		return true
+	end
+
+	return false
+end
+
+
+mesecon.queue:add_function("cooldown", function (pos)
+	if minetest.get_item_group(minetest.get_node(pos).name, "overheat") == 0 then
+		return -- node has been moved, this one does not use overheating - ignore
+	end
+
+	local meta = minetest.get_meta(pos)
+	local heat = meta:get_int("heat")
+
+	if (heat > 0) then
+		meta:set_int("heat", heat - 1)
+	end
+end)

mesecons/settings.lua

@@ -5,7 +5,8 @@ PRESSURE_PLATE_INTERVAL = 0.1
 OBJECT_DETECTOR_RADIUS = 6
 PISTON_MAXIMUM_PUSH = 15
 MOVESTONE_MAXIMUM_PUSH = 100
-MESECONS_GLOBALSTEP = true	-- true = receptors/effectors won't be updated
-				-- until next globalstep, decreases server load
 MESECONS_RESUMETIME = 4		-- time to wait when starting the server before
 				-- processing the ActionQueue, don't set this too low
+OVERHEAT_MAX = 20		-- maximum heat of any component that directly sends an output
+				-- signal when the input changes (e.g. luacontroller, gates)
+				-- Unit: actions per second, checks are every 1 second

mesecons_gates/init.lua

@@ -47,9 +47,7 @@ function set_gate(pos, on)
 	gate = get_gate(pos)
 	local meta = minetest.get_meta(pos)
 	if on ~= gate_state(pos) then
-		yc_heat(meta)
+		if mesecon.do_overheat(pos) then
-		--minetest.after(0.5, yc_cool, meta)
-		if yc_overheat(meta) then
 			pop_gate(pos)
 		else
 			local node = minetest.get_node(pos)
@@ -78,7 +76,9 @@ end
 function pop_gate(pos)
 	gate = get_gate(pos)
 	minetest.remove_node(pos)
-	minetest.after(0.2, yc_overheat_off, pos)
+	minetest.after(0.2, function (pos)
+		mesecon:receptor_off(pos, mesecon.rules.flat)
+	end , pos) -- wait for pending parsings
 	minetest.add_item(pos, "mesecons_gates:"..gate.."_off")
 end
 
@@ -153,7 +153,6 @@ for _, gate in ipairs(gates) do
 			walkable = true,
 			on_construct = function(pos)
 				local meta = minetest.get_meta(pos)
-				meta:set_int("heat", 0)
 				update_gate(pos)
 			end,
 			groups = groups,
@@ -221,4 +220,3 @@ minetest.register_craft({
 		{'mesecons:mesecon', '', ''},
 	},
 })
-

mesecons_luacontroller/init.lua

@@ -122,30 +122,6 @@ end
 -- Overheat stuff --
 --------------------
 
-local heat = function (meta) -- warm up
-	h = meta:get_int("heat")
-	if h ~= nil then
-		meta:set_int("heat", h + 1)
-	end
-end
-
---local cool = function (meta) -- cool down after a while
---	h = meta:get_int("heat")
---	if h ~= nil then
---		meta:set_int("heat", h - 1)
---	end
---end
-
-local overheat = function (meta) -- determine if too hot
-	h = meta:get_int("heat")
-	if h == nil then return true end -- if nil then overheat
-	if h > 40 then 
-		return true
-	else 
-		return false 
-	end
-end
-
 local overheat_off = function(pos)
 	mesecon:receptor_off(pos, mesecon.rules.flat)
 end
@@ -232,6 +208,8 @@ local create_environment = function(pos, mem, event)
 			mem = mem,
 			tostring = tostring,
 			tonumber = tonumber,
+			heat = minetest.get_meta(pos):get_int("heat"),
+			heat_max = OVERHEAT_MAX,
 			string = {
 				byte = string.byte,
 				char = string.char,
@@ -299,11 +277,8 @@ local create_sandbox = function (code, env)
 	return f
 end
 
-local do_overheat = function (pos, meta)
+local lc_overheat = function (pos, meta)
-	-- Overheat protection
+	if mesecon.do_overheat(pos) then -- if too hot
-	heat(meta)
-	--minetest.after(0.5, cool, meta)
-	if overheat(meta) then
 		local node = minetest.get_node(pos)
 		minetest.swap_node(pos, {name = BASENAME.."_burnt", param2 = node.param2})
 		minetest.after(0.2, overheat_off, pos) -- wait for pending operations
@@ -332,7 +307,7 @@ end
 
 lc_update = function (pos, event)
 	local meta = minetest.get_meta(pos)
-	if do_overheat(pos, meta) then return end
+	if lc_overheat(pos) then return end
 
 	-- load code & mem from memory
 	local mem  = load_memory(meta)
@@ -520,7 +495,21 @@ end
 end
 end
 
---overheated luacontroller
+------------------------------
+-- overheated luacontroller --
+------------------------------
+
+local mesecons_burnt = {
+	effector =
+	{
+		rules = mesecon.rules.flat,
+		action_change = function (pos, _, rulename, newstate)
+			-- only update portstates when changes are triggered
+			lc_update_real_portstates(pos, rulename, newstate)
+		end
+	}
+}
+
 minetest.register_node(BASENAME .. "_burnt", {
 	drawtype = "nodebox",
 	tiles = {
@@ -553,6 +542,7 @@ minetest.register_node(BASENAME .. "_burnt", {
 	end,
 	sounds = default.node_sound_stone_defaults(),
 	virtual_portstates = {a = false, b = false, c = false, d = false},
+	mesecons = mesecons_burnt,
 })
 
 ------------------------

mesecons_microcontroller/init.lua

@@ -93,7 +93,6 @@ minetest.register_node(nodename, {
 			"button[7.5,0.2;1.5,3;brsflop;RS-Flop]"..
 			"button_exit[3.5,1;2,3;program;Program]")
 		meta:set_string("infotext", "Unprogrammed Microcontroller")
-		meta:set_int("heat", 0)
 		local r = ""
 		for i=1, EEPROM_SIZE+1 do r=r.."0" end --Generate a string with EEPROM_SIZE*"0"
 		meta:set_string("eeprom", r)
@@ -156,7 +155,6 @@ minetest.register_craft({
 function yc_reset(pos)
 	yc_action(pos, {a=false, b=false, c=false, d=false})
 	local meta = minetest.get_meta(pos)
-	meta:set_int("heat", 0)
 	meta:set_int("afterid", 0)
 	local r = ""
 	for i=1, EEPROM_SIZE+1 do r=r.."0" end --Generate a string with EEPROM_SIZE*"0"
@@ -165,11 +163,12 @@ end
 
 function update_yc(pos)
 	local meta = minetest.get_meta(pos)
-	yc_heat(meta)
+
-	--minetest.after(0.5, yc_cool, meta)
+	if (mesecon.do_overheat(pos)) then
-	if (yc_overheat(meta)) then
 		minetest.remove_node(pos)
-		minetest.after(0.2, yc_overheat_off, pos) --wait for pending parsings
+		minetest.after(0.2, function (pos)
+			mesecon:receptor_off(pos, mesecon.rules.flat)
+		end , pos) -- wait for pending parsings
 		minetest.add_item(pos, "mesecons_microcontroller:microcontroller0000")
 	end
 
@@ -698,34 +697,3 @@ function yc_merge_portstates(Lreal, Lvirtual)
 	if Lvirtual.d or Lreal.d then L.d = true end
 	return L
 end
-
---"Overheat" protection
-function yc_heat(meta)
-	h = meta:get_int("heat")
-	if h ~= nil then
-		meta:set_int("heat", h + 1)
-	end
-end
-
---function yc_cool(meta)
---	h = meta:get_int("heat")
---	if h ~= nil then
---		meta:set_int("heat", h - 1)
---	end
---end
-
-function yc_overheat(meta)
-	if MESECONS_GLOBALSTEP then return false end
-	h = meta:get_int("heat")
-	if h == nil then return true end -- if nil the overheat
-	if h>60 then 
-		return true
-	else 
-		return false 
-	end
-end
-
-function yc_overheat_off(pos)
-	rules = mesecon:get_rules("mesecons_microcontroller:microcontroller1111")
-	mesecon:receptor_off(pos, rules)
-end