345 lines
8.6 KiB
Lua
345 lines
8.6 KiB
Lua
-- minetest/fire/init.lua
|
|
|
|
-- Global namespace for functions
|
|
|
|
fire = {}
|
|
|
|
|
|
-- Register flame nodes
|
|
|
|
minetest.register_node("fire:basic_flame", {
|
|
drawtype = "firelike",
|
|
tiles = {
|
|
{
|
|
name = "fire_basic_flame_animated.png",
|
|
animation = {
|
|
type = "vertical_frames",
|
|
aspect_w = 16,
|
|
aspect_h = 16,
|
|
length = 1
|
|
},
|
|
},
|
|
},
|
|
inventory_image = "fire_basic_flame.png",
|
|
paramtype = "light",
|
|
light_source = 14,
|
|
walkable = false,
|
|
buildable_to = true,
|
|
sunlight_propagates = true,
|
|
damage_per_second = 4,
|
|
groups = {igniter = 2, dig_immediate = 3, not_in_creative_inventory = 1},
|
|
on_timer = function(pos)
|
|
local f = minetest.find_node_near(pos, 1, {"group:flammable"})
|
|
if not f then
|
|
minetest.remove_node(pos)
|
|
return
|
|
end
|
|
-- restart timer
|
|
return true
|
|
end,
|
|
drop = "",
|
|
|
|
on_construct = function(pos)
|
|
minetest.get_node_timer(pos):start(math.random(30, 60))
|
|
minetest.after(0, fire.update_sounds_around, pos)
|
|
end,
|
|
|
|
on_destruct = function(pos)
|
|
minetest.after(0, fire.update_sounds_around, pos)
|
|
end,
|
|
|
|
on_blast = function()
|
|
end, -- unaffected by explosions
|
|
})
|
|
|
|
minetest.register_node("fire:permanent_flame", {
|
|
description = "Permanent Flame",
|
|
drawtype = "firelike",
|
|
tiles = {
|
|
{
|
|
name = "fire_basic_flame_animated.png",
|
|
animation = {
|
|
type = "vertical_frames",
|
|
aspect_w = 16,
|
|
aspect_h = 16,
|
|
length = 1
|
|
},
|
|
},
|
|
},
|
|
inventory_image = "fire_basic_flame.png",
|
|
paramtype = "light",
|
|
light_source = 14,
|
|
walkable = false,
|
|
buildable_to = true,
|
|
sunlight_propagates = true,
|
|
damage_per_second = 4,
|
|
groups = {igniter = 2, dig_immediate = 3},
|
|
drop = "",
|
|
|
|
on_blast = function()
|
|
end,
|
|
})
|
|
|
|
|
|
-- Flint and steel
|
|
|
|
minetest.register_tool("fire:flint_and_steel", {
|
|
description = "Flint and Steel",
|
|
inventory_image = "fire_flint_steel.png",
|
|
on_use = function(itemstack, user, pointed_thing)
|
|
local pt = pointed_thing
|
|
minetest.sound_play(
|
|
"fire_flint_and_steel",
|
|
{pos = pt.above, gain = 0.6, max_hear_distance = 8}
|
|
)
|
|
itemstack:add_wear(1000)
|
|
if pt.type == "node" then
|
|
local node_under = minetest.get_node(pt.under).name
|
|
local is_coalblock = node_under == "default:coalblock"
|
|
local is_tnt = node_under == "tnt:tnt"
|
|
local is_gunpowder = node_under == "tnt:gunpowder"
|
|
if minetest.get_item_group(node_under, "flammable") >= 1 or
|
|
is_coalblock or is_tnt or is_gunpowder then
|
|
local flame_pos = pt.above
|
|
if is_coalblock then
|
|
flame_pos = {x = pt.under.x, y = pt.under.y + 1, z = pt.under.z}
|
|
elseif is_tnt or is_gunpowder then
|
|
flame_pos = pt.under
|
|
end
|
|
if minetest.get_node(flame_pos).name == "air" or
|
|
is_tnt or is_gunpowder then
|
|
local player_name = user:get_player_name()
|
|
if not minetest.is_protected(flame_pos, player_name) then
|
|
if is_coalblock then
|
|
minetest.set_node(flame_pos,
|
|
{name = "fire:permanent_flame"})
|
|
elseif is_tnt then
|
|
minetest.set_node(flame_pos,
|
|
{name = "tnt:tnt_burning"})
|
|
elseif is_gunpowder then
|
|
minetest.set_node(flame_pos,
|
|
{name = "tnt:gunpowder_burning"})
|
|
else
|
|
minetest.set_node(flame_pos,
|
|
{name = "fire:basic_flame"})
|
|
end
|
|
else
|
|
minetest.chat_send_player(player_name, "This area is protected")
|
|
end
|
|
end
|
|
end
|
|
end
|
|
if not minetest.setting_getbool("creative_mode") then
|
|
return itemstack
|
|
end
|
|
end
|
|
})
|
|
|
|
minetest.register_craft({
|
|
output = "fire:flint_and_steel",
|
|
recipe = {
|
|
{"default:flint", "default:steel_ingot"}
|
|
}
|
|
})
|
|
|
|
|
|
-- Override coalblock to enable permanent flame above
|
|
-- Coalblock is non-flammable to avoid unwanted basic_flame nodes
|
|
|
|
minetest.override_item("default:coalblock", {
|
|
after_destruct = function(pos, oldnode)
|
|
pos.y = pos.y + 1
|
|
if minetest.get_node(pos).name == "fire:permanent_flame" then
|
|
minetest.remove_node(pos)
|
|
end
|
|
end,
|
|
})
|
|
|
|
|
|
-- Get sound area of position
|
|
|
|
fire.D = 6 -- size of sound areas
|
|
|
|
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,
|
|
}
|
|
local p1 = {
|
|
x = p0.x + fire.D - 1,
|
|
y = p0.y + fire.D - 1,
|
|
z = p0.z + fire.D - 1
|
|
}
|
|
return p0, p1
|
|
end
|
|
|
|
|
|
-- Fire sounds table
|
|
-- key: position hash of low corner of area
|
|
-- value: {handle=sound handle, name=sound name}
|
|
fire.sounds = {}
|
|
|
|
|
|
-- 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 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 = 0.7}
|
|
elseif #flames_p > 0 then
|
|
wanted_sound = {name = "fire_small", gain = 0.9}
|
|
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}),
|
|
name = wanted_sound.name,
|
|
}
|
|
end
|
|
else
|
|
if not wanted_sound then
|
|
minetest.sound_stop(sound.handle)
|
|
fire.sounds[p0_hash] = nil
|
|
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}),
|
|
name = wanted_sound.name,
|
|
}
|
|
end
|
|
end
|
|
end
|
|
|
|
|
|
-- Extinguish all flames quickly with water, snow, ice
|
|
|
|
minetest.register_abm({
|
|
label = "Extinguish flame",
|
|
nodenames = {"fire:basic_flame", "fire:permanent_flame"},
|
|
neighbors = {"group:puts_out_fire"},
|
|
interval = 3,
|
|
chance = 1,
|
|
catch_up = false,
|
|
action = function(pos, node, active_object_count, active_object_count_wider)
|
|
minetest.remove_node(pos)
|
|
minetest.sound_play("fire_extinguish_flame",
|
|
{pos = pos, max_hear_distance = 16, gain = 0.25})
|
|
end,
|
|
})
|
|
|
|
|
|
-- Enable the following ABMs according to 'enable fire' setting
|
|
|
|
local fire_enabled = minetest.setting_getbool("enable_fire")
|
|
if fire_enabled == nil then
|
|
-- New setting not specified, check for old setting.
|
|
-- If old setting is also not specified, 'not nil' is true.
|
|
fire_enabled = not minetest.setting_getbool("disable_fire")
|
|
end
|
|
|
|
if not fire_enabled then
|
|
|
|
-- Remove basic flames only
|
|
|
|
minetest.register_abm({
|
|
label = "Remove disabled fire",
|
|
nodenames = {"fire:basic_flame"},
|
|
interval = 7,
|
|
chance = 1,
|
|
catch_up = false,
|
|
action = minetest.remove_node,
|
|
})
|
|
|
|
else -- Fire enabled
|
|
|
|
-- Ignite neighboring nodes, add basic flames
|
|
|
|
minetest.register_abm({
|
|
label = "Ignite flame",
|
|
nodenames = {"group:flammable"},
|
|
neighbors = {"group:igniter"},
|
|
interval = 7,
|
|
chance = 12,
|
|
catch_up = false,
|
|
action = function(pos, node, active_object_count, active_object_count_wider)
|
|
-- If there is water or stuff like that around node, don't ignite
|
|
if minetest.find_node_near(pos, 1, {"group:puts_out_fire"}) then
|
|
return
|
|
end
|
|
local p = minetest.find_node_near(pos, 1, {"air"})
|
|
if p then
|
|
minetest.set_node(p, {name = "fire:basic_flame"})
|
|
end
|
|
end,
|
|
})
|
|
|
|
-- Remove flammable nodes
|
|
|
|
minetest.register_abm({
|
|
label = "Remove flammable nodes",
|
|
nodenames = {"fire:basic_flame"},
|
|
neighbors = "group:flammable",
|
|
interval = 5,
|
|
chance = 18,
|
|
catch_up = false,
|
|
action = function(pos, node, active_object_count, active_object_count_wider)
|
|
local p = minetest.find_node_near(pos, 1, {"group:flammable"})
|
|
if p then
|
|
-- remove flammable nodes around flame
|
|
local flammable_node = minetest.get_node(p)
|
|
local def = minetest.registered_nodes[flammable_node.name]
|
|
if def.on_burn then
|
|
def.on_burn(p)
|
|
else
|
|
minetest.remove_node(p)
|
|
nodeupdate(p)
|
|
end
|
|
end
|
|
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"},
|
|
interval = 5,
|
|
chance = 10,
|
|
action = function(pos, node, active_object_count, active_object_count_wider)
|
|
local reg = minetest.registered_nodes[node.name]
|
|
if not reg or not reg.groups.igniter or reg.groups.igniter < 2 then
|
|
return
|
|
end
|
|
local d = reg.groups.igniter
|
|
local p = minetest.find_node_near(pos, d, {"group:flammable"})
|
|
if p then
|
|
-- If there is water or stuff like that around flame, don't ignite
|
|
if fire.flame_should_extinguish(p) then
|
|
return
|
|
end
|
|
local p2 = fire.find_pos_for_flame_around(p)
|
|
if p2 then
|
|
minetest.set_node(p2, {name = "fire:basic_flame"})
|
|
end
|
|
end
|
|
end,
|
|
})
|
|
--]]
|