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Improve overheating (#334)

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New overheating system that doesn’t use the meta.
This commit is contained in:
numberZero
2017-04-14 23:14:17 +04:00
committed by GitHub
parent 2554164674
commit 54b9eaffa2
4 changed files with 55 additions and 20 deletions
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67
mesecons/services.lua
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@ -66,30 +66,63 @@ minetest.register_on_placenode(mesecon.on_placenode)
minetest.register_on_dignode(mesecon.on_dignode)
-- Overheating service for fast circuits
local OVERHEAT_MAX = mesecon.setting("overheat_max", 20)
local COOLDOWN_TIME = mesecon.setting("cooldown_time", 2.0)
local COOLDOWN_STEP = mesecon.setting("cooldown_granularity", 0.5)
local COOLDOWN_MULTIPLIER = OVERHEAT_MAX / COOLDOWN_TIME
local cooldown_timer = 0.0
local object_heat = {}
-- 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 < mesecon.setting("overheat_max", 20) then
mesecon.queue:add_action(pos, "cooldown", {}, 1, nil, 0)
else
function mesecon.do_overheat(pos)
local id = minetest.hash_node_position(pos)
local heat = (object_heat[id] or 0) + 1
object_heat[id] = heat
if heat >= OVERHEAT_MAX then
minetest.log("action", "Node overheats at " .. minetest.pos_to_string(pos))
object_heat[id] = nil
return true
end
return false
end
function mesecon.do_cooldown(pos)
local id = minetest.hash_node_position(pos)
object_heat[id] = nil
end
mesecon.queue:add_function("cooldown", function (pos)
local meta = minetest.get_meta(pos)
local heat = meta:get_int("heat")
function mesecon.get_heat(pos)
local id = minetest.hash_node_position(pos)
return object_heat[id] or 0
end
if (heat > 0) then
meta:set_int("heat", heat - 1)
function mesecon.move_hot_nodes(moved_nodes)
local new_heat = {}
for _, n in ipairs(moved_nodes) do
local old_id = minetest.hash_node_position(n.oldpos)
local new_id = minetest.hash_node_position(n.pos)
new_heat[new_id] = object_heat[old_id]
object_heat[old_id] = nil
end
end)
for id, heat in pairs(new_heat) do
object_heat[id] = heat
end
end
local function global_cooldown(dtime)
cooldown_timer = cooldown_timer + dtime
if cooldown_timer < COOLDOWN_STEP then
return -- don't overload the CPU
end
local cooldown = COOLDOWN_MULTIPLIER * cooldown_timer
cooldown_timer = 0
for id, heat in pairs(object_heat) do
heat = heat - cooldown
if heat <= 0 then
object_heat[id] = nil -- free some RAM
else
object_heat[id] = heat
end
end
end
minetest.register_globalstep(global_cooldown)