Fire: Slow down fire spread and reduce lua load
Increase chance value of ABMs Disable ignition from a distance Only detect neighbouring extinguishing nodes Fix code style issues and add comments
This commit is contained in:
paramat
parent
3740efb393
commit
2392842948
@ -1,17 +1,23 @@
|
||||
-- minetest/fire/init.lua
|
||||
|
||||
-- Global namespace for functions
|
||||
|
||||
fire = {}
|
||||
|
||||
|
||||
-- Register flame node
|
||||
|
||||
minetest.register_node("fire:basic_flame", {
|
||||
description = "Fire",
|
||||
drawtype = "firelike",
|
||||
tiles = {{
|
||||
name="fire_basic_flame_animated.png",
|
||||
animation={type="vertical_frames", aspect_w=16, aspect_h=16, length=1},
|
||||
name = "fire_basic_flame_animated.png",
|
||||
animation = {type = "vertical_frames",
|
||||
aspect_w = 16, aspect_h = 16, length = 1},
|
||||
}},
|
||||
inventory_image = "fire_basic_flame.png",
|
||||
light_source = 14,
|
||||
groups = {igniter=2,dig_immediate=3},
|
||||
groups = {igniter = 2, dig_immediate = 3},
|
||||
drop = '',
|
||||
walkable = false,
|
||||
buildable_to = true,
|
||||
@ -29,44 +35,55 @@ minetest.register_node("fire:basic_flame", {
|
||||
on_blast = function() end,
|
||||
})
|
||||
|
||||
fire.D = 6
|
||||
|
||||
-- Fire sounds table
|
||||
-- key: position hash of low corner of area
|
||||
-- value: {handle=sound handle, name=sound name}
|
||||
fire.sounds = {}
|
||||
|
||||
|
||||
-- Get sound area of position
|
||||
|
||||
-- size of sound areas
|
||||
fire.D = 6
|
||||
|
||||
function fire.get_area_p0p1(pos)
|
||||
local p0 = {
|
||||
x=math.floor(pos.x/fire.D)*fire.D,
|
||||
y=math.floor(pos.y/fire.D)*fire.D,
|
||||
z=math.floor(pos.z/fire.D)*fire.D,
|
||||
x = math.floor(pos.x / fire.D) * fire.D,
|
||||
y = math.floor(pos.y / fire.D) * fire.D,
|
||||
z = math.floor(pos.z / fire.D) * fire.D,
|
||||
}
|
||||
local p1 = {
|
||||
x=p0.x+fire.D-1,
|
||||
y=p0.y+fire.D-1,
|
||||
z=p0.z+fire.D-1
|
||||
x = p0.x + fire.D - 1,
|
||||
y = p0.y + fire.D - 1,
|
||||
z = p0.z + fire.D - 1
|
||||
}
|
||||
return p0, p1
|
||||
end
|
||||
|
||||
|
||||
-- Update fire sounds in sound area of position
|
||||
|
||||
function fire.update_sounds_around(pos)
|
||||
local p0, p1 = fire.get_area_p0p1(pos)
|
||||
local cp = {x=(p0.x+p1.x)/2, y=(p0.y+p1.y)/2, z=(p0.z+p1.z)/2}
|
||||
local cp = {x = (p0.x + p1.x) / 2, y = (p0.y + p1.y) / 2, z = (p0.z + p1.z) / 2}
|
||||
local flames_p = minetest.find_nodes_in_area(p0, p1, {"fire:basic_flame"})
|
||||
--print("number of flames at "..minetest.pos_to_string(p0).."/"
|
||||
-- ..minetest.pos_to_string(p1)..": "..#flames_p)
|
||||
local should_have_sound = (#flames_p > 0)
|
||||
local wanted_sound = nil
|
||||
if #flames_p >= 9 then
|
||||
wanted_sound = {name="fire_large", gain=1.5}
|
||||
wanted_sound = {name = "fire_large", gain = 1.5}
|
||||
elseif #flames_p > 0 then
|
||||
wanted_sound = {name="fire_small", gain=1.5}
|
||||
wanted_sound = {name = "fire_small", gain = 1.5}
|
||||
end
|
||||
local p0_hash = minetest.hash_node_position(p0)
|
||||
local sound = fire.sounds[p0_hash]
|
||||
if not sound then
|
||||
if should_have_sound then
|
||||
fire.sounds[p0_hash] = {
|
||||
handle = minetest.sound_play(wanted_sound, {pos=cp, max_hear_distance = 16, loop=true}),
|
||||
handle = minetest.sound_play(wanted_sound,
|
||||
{pos = cp, max_hear_distance = 16, loop = true}),
|
||||
name = wanted_sound.name,
|
||||
}
|
||||
end
|
||||
@ -77,40 +94,53 @@ function fire.update_sounds_around(pos)
|
||||
elseif sound.name ~= wanted_sound.name then
|
||||
minetest.sound_stop(sound.handle)
|
||||
fire.sounds[p0_hash] = {
|
||||
handle = minetest.sound_play(wanted_sound, {pos=cp, max_hear_distance = 16, loop=true}),
|
||||
handle = minetest.sound_play(wanted_sound,
|
||||
{pos = cp, max_hear_distance = 16, loop = true}),
|
||||
name = wanted_sound.name,
|
||||
}
|
||||
end
|
||||
end
|
||||
end
|
||||
|
||||
|
||||
-- Update fire sounds on flame node construct or destruct
|
||||
|
||||
function fire.on_flame_add_at(pos)
|
||||
fire.update_sounds_around(pos)
|
||||
end
|
||||
|
||||
|
||||
function fire.on_flame_remove_at(pos)
|
||||
fire.update_sounds_around(pos)
|
||||
end
|
||||
|
||||
|
||||
-- Return positions for flames around a burning node
|
||||
|
||||
function fire.find_pos_for_flame_around(pos)
|
||||
return minetest.find_node_near(pos, 1, {"air"})
|
||||
end
|
||||
|
||||
|
||||
-- Detect nearby extinguishing nodes
|
||||
|
||||
function fire.flame_should_extinguish(pos)
|
||||
if minetest.setting_getbool("disable_fire") then return true end
|
||||
--return minetest.find_node_near(pos, 1, {"group:puts_out_fire"})
|
||||
local p0 = {x=pos.x-2, y=pos.y, z=pos.z-2}
|
||||
local p1 = {x=pos.x+2, y=pos.y, z=pos.z+2}
|
||||
local p0 = {x = pos.x - 1, y = pos.y, z = pos.z - 1}
|
||||
local p1 = {x = pos.x + 1, y = pos.y + 1, z = pos.z + 1}
|
||||
local ps = minetest.find_nodes_in_area(p0, p1, {"group:puts_out_fire"})
|
||||
return (#ps ~= 0)
|
||||
end
|
||||
|
||||
|
||||
-- Ignite neighboring nodes
|
||||
|
||||
minetest.register_abm({
|
||||
nodenames = {"group:flammable"},
|
||||
neighbors = {"group:igniter"},
|
||||
interval = 5,
|
||||
chance = 2,
|
||||
interval = 7,
|
||||
chance = 32,
|
||||
action = function(p0, node, _, _)
|
||||
-- If there is water or stuff like that around flame, don't ignite
|
||||
if fire.flame_should_extinguish(p0) then
|
||||
@ -118,12 +148,17 @@ minetest.register_abm({
|
||||
end
|
||||
local p = fire.find_pos_for_flame_around(p0)
|
||||
if p then
|
||||
minetest.set_node(p, {name="fire:basic_flame"})
|
||||
minetest.set_node(p, {name = "fire:basic_flame"})
|
||||
end
|
||||
end,
|
||||
})
|
||||
|
||||
|
||||
-- Rarely ignite things from far
|
||||
|
||||
--[[ Currently disabled to reduce the chance of uncontrollable spreading
|
||||
fires that disrupt servers. Also for less lua processing load.
|
||||
|
||||
minetest.register_abm({
|
||||
nodenames = {"group:igniter"},
|
||||
neighbors = {"air"},
|
||||
@ -143,17 +178,20 @@ minetest.register_abm({
|
||||
end
|
||||
local p2 = fire.find_pos_for_flame_around(p)
|
||||
if p2 then
|
||||
minetest.set_node(p2, {name="fire:basic_flame"})
|
||||
minetest.set_node(p2, {name = "fire:basic_flame"})
|
||||
end
|
||||
end
|
||||
end,
|
||||
})
|
||||
--]]
|
||||
|
||||
|
||||
-- Remove flammable nodes and flame
|
||||
|
||||
minetest.register_abm({
|
||||
nodenames = {"fire:basic_flame"},
|
||||
interval = 3,
|
||||
chance = 2,
|
||||
interval = 5,
|
||||
chance = 16,
|
||||
action = function(p0, node, _, _)
|
||||
-- If there is water or stuff like that around flame, remove flame
|
||||
if fire.flame_should_extinguish(p0) then
|
||||
@ -161,7 +199,7 @@ minetest.register_abm({
|
||||
return
|
||||
end
|
||||
-- Make the following things rarer
|
||||
if math.random(1,3) == 1 then
|
||||
if math.random(1, 3) == 1 then
|
||||
return
|
||||
end
|
||||
-- If there are no flammable nodes around flame, remove flame
|
||||
@ -169,7 +207,7 @@ minetest.register_abm({
|
||||
minetest.remove_node(p0)
|
||||
return
|
||||
end
|
||||
if math.random(1,4) == 1 then
|
||||
if math.random(1, 4) == 1 then
|
||||
-- remove a flammable node around flame
|
||||
local p = minetest.find_node_near(p0, 1, {"group:flammable"})
|
||||
if p then
|
||||
|
||||
Loading…
Reference in New Issue
Block a user