Aaron Suen a1b2df3941 Begin standardization of unload bounds check
- New near_unloaded API that supports custom
  distance parameter, map bounds check, and
  some optimizations.
- Add area automatic unload check support to ABM
  API and add to applicable ABMs, replacing many
  old manual checks.

Note that the explicit unload check is only strictly
necessary when something will happen due to
a node NOT being present in the area, e.g. something
igniting due to absent coolant, or soaking quantity
being reset due to missing sources.  In simple cases
where the absence of a thing causes the ABM to do
nothing, then the standard check can work because
the default action is to do nothing anyway.
2021-12-18 11:28:14 -05:00

119 lines
2.9 KiB
Lua

-- LUALOCALS < ---------------------------------------------------------
local ipairs, math, minetest, nodecore, pairs, vector
= ipairs, math, minetest, nodecore, pairs, vector
local math_random
= math.random
-- LUALOCALS > ---------------------------------------------------------
local modname = minetest.get_current_modname()
local sparks_add, sparks_flush = nodecore.fairlimit(50)
nodecore.register_globalstep("fire sparks", function()
for _, pos in ipairs(sparks_flush()) do
minetest.after(math_random(), function()
minetest.add_particlespawner({
amount = math_random(1, 3),
time = 1,
minpos = vector.subtract(pos, 0.5),
maxpos = vector.add(pos, 0.5),
minvel = {x = -1, y = 2, z = -1},
maxvel = {x = 1, y = 2.5, z = 1},
minacc = {x = -0.1, y = 0, z = -0.1},
maxacc = {x = 0.1, y = 0, z = 0.1},
minxeptime = 1,
maxexptime = 3,
minsize = 0.1,
maxsize = 0.2,
collisiondetection = true,
collision_removal = true,
texture = "nc_fire_spark.png",
glow = math_random(5, 9)
})
end)
end
end)
do
local flamedirs = nodecore.dirs()
local embers = {}
minetest.after(0, function()
for k, v in pairs(minetest.registered_items) do
if v.groups.ember then
embers[k] = true
end
end
end)
minetest.register_abm({
label = "fire consume",
interval = 1,
chance = 1,
arealoaded = 1,
nodenames = {modname .. ":fire"},
action = function(pos)
sparks_add(pos)
local found = {}
for _, dp in ipairs(flamedirs) do
local npos = vector.add(pos, dp)
local node = minetest.get_node_or_nil(npos)
if (not node) or embers[node.name] then
found[#found + 1] = npos
end
end
if #found < 1 then
return minetest.remove_node(pos)
end
local picked = nodecore.pickrand(found)
return nodecore.fire_check_expend(picked)
end
})
end
minetest.register_abm({
label = "flammables ignite",
interval = 5,
chance = 1,
nodenames = {"group:flammable"},
neighbors = {"group:igniter"},
neighbors_invert = true,
arealoaded = 1,
action = function(pos)
nodecore.fire_check_ignite(pos)
end
})
minetest.register_abm({
label = "ember snuff/flames",
interval = 1,
chance = 1,
nodenames = {"group:ember"},
arealoaded = 1,
action = function(pos, node)
local snuff, vents = nodecore.fire_check_snuff(pos, node)
if snuff or not vents then return end
for i = 1, #vents do
if vents[i].q < 1 then
minetest.set_node(vents[i], {name = modname .. ":fire"})
end
end
end
})
nodecore.register_ambiance({
label = "flame ambiance",
nodenames = {"group:flame_ambiance"},
interval = 1,
chance = 1,
sound_name = "nc_fire_flamy",
sound_gain = 0.1
})
nodecore.register_item_ambiance({
label = "flame ambiance",
itemnames = {"group:flame_ambiance"},
interval = 1,
chance = 1,
sound_name = "nc_fire_flamy",
sound_gain = 0.1
})