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https://github.com/minetest-mods/mesecons.git
synced 2024-12-26 02:10:18 +01:00
Force-load areas with mesecon usage
This is a major speedup for large mesecon machines / structures. Force-loaded areas are stored in a file to be persistent over server reboots. By default, areas are unloaded after 10 minutes (600s) without usage, this can be customized with the mesecon.forceload_timeout setting. Please turn max_forceloaded_blocks up for better performance.
This commit is contained in:
Jeija
parent
f099b43e11
commit
cfd4f7c287
@ -94,25 +94,8 @@ end
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-- Store and read the ActionQueue to / from a file
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-- so that upcoming actions are remembered when the game
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-- is restarted
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local wpath = minetest.get_worldpath()
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local function file2table(filename)
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local f = io.open(filename, "r")
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if f==nil then return {} end
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local t = f:read("*all")
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f:close()
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if t=="" or t==nil then return {} end
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return minetest.deserialize(t)
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end
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local function table2file(filename, table)
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local f = io.open(filename, "w")
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f:write(minetest.serialize(table))
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f:close()
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end
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mesecon.queue.actions = file2table(wpath.."/mesecon_actionqueue")
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mesecon.queue.actions = mesecon.file2table("mesecon_actionqueue")
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minetest.register_on_shutdown(function()
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mesecon.queue.actions = table2file(wpath.."/mesecon_actionqueue", mesecon.queue.actions)
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mesecon.table2file("mesecon_actionqueue", mesecon.queue.actions)
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end)
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@ -77,6 +77,8 @@ function mesecon.get_conductor(nodename)
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end
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function mesecon.get_any_outputrules (node)
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if not node then return nil end
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if mesecon.is_conductor(node.name) then
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return mesecon.conductor_get_rules(node)
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elseif mesecon.is_receptor(node.name) then
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@ -85,6 +87,8 @@ function mesecon.get_any_outputrules (node)
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end
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function mesecon.get_any_inputrules (node)
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if not node then return nil end
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if mesecon.is_conductor(node.name) then
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return mesecon.conductor_get_rules(node)
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elseif mesecon.is_effector(node.name) then
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@ -182,7 +186,9 @@ end
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-- Activation:
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mesecon.queue:add_function("activate", function (pos, rulename)
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local node = minetest.get_node(pos)
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local node = mesecon.get_node_force(pos)
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if not node then return end
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local effector = mesecon.get_effector(node.name)
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if effector and effector.action_on then
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@ -203,7 +209,9 @@ end
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-- Deactivation
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mesecon.queue:add_function("deactivate", function (pos, rulename)
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local node = minetest.get_node(pos)
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local node = mesecon.get_node_force(pos)
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if not node then return end
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local effector = mesecon.get_effector(node.name)
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if effector and effector.action_off then
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@ -224,7 +232,9 @@ end
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-- Change
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mesecon.queue:add_function("change", function (pos, rulename, changetype)
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local node = minetest.get_node(pos)
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local node = mesecon.get_node_force(pos)
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if not node then return end
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local effector = mesecon.get_effector(node.name)
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if effector and effector.action_change then
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@ -249,6 +259,8 @@ end
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-- Conductors
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function mesecon.is_conductor_on(node, rulename)
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if not node then return false end
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local conductor = mesecon.get_conductor(node.name)
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if conductor then
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if conductor.state then
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@ -263,10 +275,13 @@ function mesecon.is_conductor_on(node, rulename)
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return mesecon.get_bit(binstate, bit)
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end
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end
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return false
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end
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function mesecon.is_conductor_off(node, rulename)
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if not node then return false end
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local conductor = mesecon.get_conductor(node.name)
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if conductor then
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if conductor.state then
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@ -281,6 +296,7 @@ function mesecon.is_conductor_off(node, rulename)
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return not mesecon.get_bit(binstate, bit)
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end
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end
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return false
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end
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@ -340,7 +356,7 @@ end
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-- some more general high-level stuff
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function mesecon.is_power_on(pos, rulename)
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local node = minetest.get_node(pos)
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local node = mesecon.get_node_force(pos)
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if mesecon.is_conductor_on(node, rulename) or mesecon.is_receptor_on(node.name) then
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return true
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end
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@ -348,7 +364,7 @@ function mesecon.is_power_on(pos, rulename)
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end
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function mesecon.is_power_off(pos, rulename)
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local node = minetest.get_node(pos)
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local node = mesecon.get_node_force(pos)
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if mesecon.is_conductor_off(node, rulename) or mesecon.is_receptor_off(node.name) then
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return true
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end
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@ -361,10 +377,11 @@ function mesecon.turnon(pos, link)
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local depth = 1
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while frontiers[depth] do
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local f = frontiers[depth]
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local node = minetest.get_node_or_nil(f.pos)
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local node = mesecon.get_node_force(f.pos)
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-- area not loaded, postpone action
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if not node then
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print("Mesecons: Postponing action!")
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mesecon.queue:add_action(f.pos, "turnon", {link}, nil, true)
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elseif mesecon.is_conductor_off(node, f.link) then
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local rules = mesecon.conductor_get_rules(node)
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@ -377,7 +394,7 @@ function mesecon.turnon(pos, link)
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local np = vector.add(f.pos, r)
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-- area not loaded, postpone action
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if not minetest.get_node_or_nil(np) then
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if not mesecon.get_node_force(np) then
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mesecon.queue:add_action(np, "turnon", {rulename},
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nil, true)
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else
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@ -407,7 +424,7 @@ function mesecon.turnoff(pos, link)
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local depth = 1
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while frontiers[depth] do
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local f = frontiers[depth]
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local node = minetest.get_node_or_nil(f.pos)
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local node = mesecon.get_node_force(f.pos)
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-- area not loaded, postpone action
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if not node then
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@ -423,7 +440,7 @@ function mesecon.turnoff(pos, link)
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local np = vector.add(f.pos, r)
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-- area not loaded, postpone action
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if not minetest.get_node_or_nil(np) then
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if not mesecon.get_node_force(np) then
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mesecon.queue:add_action(np, "turnoff", {rulename},
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nil, true)
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else
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@ -449,7 +466,8 @@ end)
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function mesecon.connected_to_receptor(pos, link)
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local node = minetest.get_node(pos)
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local node = mesecon.get_node_force(pos)
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if not node then return false end
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-- Check if conductors around are connected
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local rules = mesecon.get_any_inputrules(node)
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@ -476,7 +494,7 @@ function mesecon.find_receptor_on(pos, link)
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local depth = 1
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while frontiers[depth] do
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local f = frontiers[depth]
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local node = minetest.get_node_or_nil(f.pos)
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local node = mesecon.get_node_force(f.pos)
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if not node then return false end
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if mesecon.is_receptor_on(node.name) then return true end
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@ -503,8 +521,9 @@ function mesecon.find_receptor_on(pos, link)
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end
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function mesecon.rules_link(output, input, dug_outputrules) --output/input are positions (outputrules optional, used if node has been dug), second return value: the name of the affected input rule
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local outputnode = minetest.get_node(output)
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local inputnode = minetest.get_node(input)
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local outputnode = mesecon.get_node_force(output)
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local inputnode = mesecon.get_node_force(input)
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local outputrules = dug_outputrules or mesecon.get_any_outputrules (outputnode)
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local inputrules = mesecon.get_any_inputrules (inputnode)
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if not outputrules or not inputrules then
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@ -522,12 +541,13 @@ function mesecon.rules_link(output, input, dug_outputrules) --output/input are p
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end
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end
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end
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return false
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end
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function mesecon.rules_link_rule_all(output, rule)
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local input = vector.add(output, rule)
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local inputnode = minetest.get_node(input)
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local inputnode = mesecon.get_node_force(input)
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local inputrules = mesecon.get_any_inputrules (inputnode)
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if not inputrules then
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return {}
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@ -540,13 +560,14 @@ function mesecon.rules_link_rule_all(output, rule)
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table.insert(rules, inputrule)
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end
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end
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return rules
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end
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function mesecon.rules_link_rule_all_inverted(input, rule)
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--local irule = mesecon.invertRule(rule)
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local output = vector.add(input, rule)
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local outputnode = minetest.get_node(output)
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local outputnode = mesecon.get_node_force(output)
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local outputrules = mesecon.get_any_outputrules (outputnode)
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if not outputrules then
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return {}
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@ -566,7 +587,7 @@ function mesecon.rules_link_anydir(pos1, pos2)
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end
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function mesecon.is_powered(pos, rule)
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local node = minetest.get_node(pos)
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local node = mesecon.get_node_force(pos)
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local rules = mesecon.get_any_inputrules(node)
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if not rules then return false end
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@ -578,9 +599,10 @@ function mesecon.is_powered(pos, rule)
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local rulenames = mesecon.rules_link_rule_all_inverted(pos, rule)
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for _, rname in ipairs(rulenames) do
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local np = vector.add(pos, rname)
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local nn = minetest.get_node(np)
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if (mesecon.is_conductor_on (nn, mesecon.invertRule(rname))
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or mesecon.is_receptor_on (nn.name)) then
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local nn = mesecon.get_node_force(np)
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if (mesecon.is_conductor_on(nn, mesecon.invertRule(rname))
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or mesecon.is_receptor_on(nn.name)) then
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table.insert(sourcepos, np)
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end
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end
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@ -589,7 +611,7 @@ function mesecon.is_powered(pos, rule)
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local rulenames = mesecon.rules_link_rule_all_inverted(pos, rule)
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for _, rname in ipairs(rulenames) do
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local np = vector.add(pos, rname)
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local nn = minetest.get_node(np)
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local nn = mesecon.get_node_force(np)
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if (mesecon.is_conductor_on (nn, mesecon.invertRule(rname))
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or mesecon.is_receptor_on (nn.name)) then
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table.insert(sourcepos, np)
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@ -201,3 +201,75 @@ function mesecon.flipstate(pos, node)
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return newstate
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end
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-- File writing / reading utilities
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local wpath = minetest.get_worldpath()
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function mesecon.file2table(filename)
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local f = io.open(wpath..DIR_DELIM..filename, "r")
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if f == nil then return {} end
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local t = f:read("*all")
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f:close()
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if t == "" or t == nil then return {} end
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return minetest.deserialize(t)
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end
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function mesecon.table2file(filename, table)
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local f = io.open(wpath..DIR_DELIM..filename, "w")
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f:write(minetest.serialize(table))
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f:close()
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end
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-- Forceloading: Force server to load area if node is nil
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local BLOCKSIZE = 16
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-- convert node position --> block hash
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local function hash_blockpos(pos)
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return minetest.hash_node_position({
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x = math.floor(pos.x/BLOCKSIZE),
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y = math.floor(pos.y/BLOCKSIZE),
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z = math.floor(pos.z/BLOCKSIZE)
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})
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end
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-- convert block hash --> node position
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local function unhash_blockpos(hash)
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return vector.multiply(minetest.get_position_from_hash(hash), BLOCKSIZE)
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end
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mesecon.forceloaded_blocks = {}
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-- get node and force-load area
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function mesecon.get_node_force(pos)
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local hash = hash_blockpos(pos)
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if mesecon.forceloaded_blocks[hash] == nil then
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-- if no more forceload spaces are available, try again next time
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if minetest.forceload_block(pos) then
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mesecon.forceloaded_blocks[hash] = 0
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end
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else
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mesecon.forceloaded_blocks[hash] = 0
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end
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return minetest.get_node_or_nil(pos)
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end
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minetest.register_globalstep(function (dtime)
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for hash, time in pairs(mesecon.forceloaded_blocks) do
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-- unload forceloaded blocks after 10 minutes without usage
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if (time > mesecon.setting("forceload_timeout", 600)) then
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minetest.forceload_free_block(unhash_blockpos(hash))
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mesecon.forceloaded_blocks[hash] = nil
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else
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mesecon.forceloaded_blocks[hash] = time + dtime
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end
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end
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end)
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-- Store and read the forceloaded blocks to / from a file
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-- so that those blocks are remembered when the game
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-- is restarted
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mesecon.forceloaded_blocks = mesecon.file2table("mesecon_forceloaded")
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minetest.register_on_shutdown(function()
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mesecon.table2file("mesecon_forceloaded", mesecon.forceloaded_blocks)
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end)
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