3 -- Global namespace for functions
7 -- Load support for MT game translation.
8 local S = minetest.get_translator("fire")
11 -- 'Enable fire' setting
13 local fire_enabled = minetest.settings:get_bool("enable_fire")
14 if fire_enabled == nil then
15 -- enable_fire setting not specified, check for disable_fire
16 local fire_disabled = minetest.settings:get_bool("disable_fire")
17 if fire_disabled == nil then
18 -- Neither setting specified, check whether singleplayer
19 fire_enabled = minetest.is_singleplayer()
21 fire_enabled = not fire_disabled
29 -- Flood flame function
31 local function flood_flame(pos, oldnode, newnode)
32 -- Play flame extinguish sound if liquid is not an 'igniter'
33 local nodedef = minetest.registered_items[newnode.name]
34 if not (nodedef and nodedef.groups and
35 nodedef.groups.igniter and nodedef.groups.igniter > 0) then
36 minetest.sound_play("fire_extinguish_flame",
37 {pos = pos, max_hear_distance = 16, gain = 0.15}, true)
45 minetest.register_node("fire:basic_flame", {
46 drawtype = "firelike",
49 name = "fire_basic_flame_animated.png",
51 type = "vertical_frames",
58 inventory_image = "fire_basic_flame.png",
63 sunlight_propagates = true,
65 damage_per_second = 4,
66 groups = {igniter = 2, dig_immediate = 3, not_in_creative_inventory = 1},
69 on_timer = function(pos)
70 local f = minetest.find_node_near(pos, 1, {"group:flammable"})
71 if not fire_enabled or not f then
72 minetest.remove_node(pos)
79 on_construct = function(pos)
80 if not fire_enabled then
81 minetest.remove_node(pos)
83 minetest.get_node_timer(pos):start(math.random(30, 60))
87 on_flood = flood_flame,
90 minetest.register_node("fire:permanent_flame", {
91 description = S("Permanent Flame"),
92 drawtype = "firelike",
95 name = "fire_basic_flame_animated.png",
97 type = "vertical_frames",
104 inventory_image = "fire_basic_flame.png",
109 sunlight_propagates = true,
111 damage_per_second = 4,
112 groups = {igniter = 2, dig_immediate = 3},
115 on_flood = flood_flame,
121 minetest.register_tool("fire:flint_and_steel", {
122 description = S("Flint and Steel"),
123 inventory_image = "fire_flint_steel.png",
124 sound = {breaks = "default_tool_breaks"},
126 on_use = function(itemstack, user, pointed_thing)
127 local sound_pos = pointed_thing.above or user:get_pos()
129 "fire_flint_and_steel",
130 {pos = sound_pos, gain = 0.5, max_hear_distance = 8},
133 local player_name = user:get_player_name()
134 if pointed_thing.type == "node" then
135 local node_under = minetest.get_node(pointed_thing.under).name
136 local nodedef = minetest.registered_nodes[node_under]
140 if minetest.is_protected(pointed_thing.under, player_name) then
141 minetest.chat_send_player(player_name, "This area is protected")
144 if nodedef.on_ignite then
145 nodedef.on_ignite(pointed_thing.under, user)
146 elseif minetest.get_item_group(node_under, "flammable") >= 1
147 and minetest.get_node(pointed_thing.above).name == "air" then
148 minetest.set_node(pointed_thing.above, {name = "fire:basic_flame"})
151 if not (creative and creative.is_enabled_for
152 and creative.is_enabled_for(player_name)) then
154 local wdef = itemstack:get_definition()
155 itemstack:add_wear(1000)
157 if itemstack:get_count() == 0 and wdef.sound and wdef.sound.breaks then
158 minetest.sound_play(wdef.sound.breaks, {pos = sound_pos,
166 minetest.register_craft({
167 output = "fire:flint_and_steel",
169 {"default:flint", "default:steel_ingot"}
174 -- Override coalblock to enable permanent flame above
175 -- Coalblock is non-flammable to avoid unwanted basic_flame nodes
177 minetest.override_item("default:coalblock", {
178 after_destruct = function(pos, oldnode)
180 if minetest.get_node(pos).name == "fire:permanent_flame" then
181 minetest.remove_node(pos)
184 on_ignite = function(pos, igniter)
185 local flame_pos = {x = pos.x, y = pos.y + 1, z = pos.z}
186 if minetest.get_node(flame_pos).name == "air" then
187 minetest.set_node(flame_pos, {name = "fire:permanent_flame"})
197 local flame_sound = minetest.settings:get_bool("flame_sound")
198 if flame_sound == nil then
199 -- Enable if no setting present
210 local radius = 8 -- Flame node search radius around player
211 local cycle = 3 -- Cycle time for sound updates
213 -- Update sound for player
215 function fire.update_player_sound(player)
216 local player_name = player:get_player_name()
217 -- Search for flame nodes in radius around player
218 local ppos = player:get_pos()
219 local areamin = vector.subtract(ppos, radius)
220 local areamax = vector.add(ppos, radius)
221 local fpos, num = minetest.find_nodes_in_area(
224 {"fire:basic_flame", "fire:permanent_flame"}
226 -- Total number of flames in radius
227 local flames = (num["fire:basic_flame"] or 0) +
228 (num["fire:permanent_flame"] or 0)
229 -- Stop previous sound
230 if handles[player_name] then
231 minetest.sound_stop(handles[player_name])
232 handles[player_name] = nil
236 -- Find centre of flame positions
237 local fposmid = fpos[1]
238 -- If more than 1 flame
240 local fposmin = areamax
241 local fposmax = areamin
243 local fposi = fpos[i]
244 if fposi.x > fposmax.x then
247 if fposi.y > fposmax.y then
250 if fposi.z > fposmax.z then
253 if fposi.x < fposmin.x then
256 if fposi.y < fposmin.y then
259 if fposi.z < fposmin.z then
263 fposmid = vector.divide(vector.add(fposmin, fposmax), 2)
266 local handle = minetest.sound_play(
270 to_player = player_name,
271 gain = math.min(0.06 * (1 + flames * 0.125), 0.18),
272 max_hear_distance = 32,
273 loop = true, -- In case of lag
276 -- Store sound handle for this player
278 handles[player_name] = handle
283 -- Cycle for updating players sounds
285 minetest.register_globalstep(function(dtime)
286 timer = timer + dtime
287 if timer < cycle then
292 local players = minetest.get_connected_players()
293 for n = 1, #players do
294 fire.update_player_sound(players[n])
298 -- Stop sound and clear handle on player leave
300 minetest.register_on_leaveplayer(function(player)
301 local player_name = player:get_player_name()
302 if handles[player_name] then
303 minetest.sound_stop(handles[player_name])
304 handles[player_name] = nil
310 -- Deprecated function kept temporarily to avoid crashes if mod fire nodes call it
312 function fire.update_sounds_around(pos)
322 -- Ignite neighboring nodes, add basic flames
324 minetest.register_abm({
325 label = "Ignite flame",
326 nodenames = {"group:flammable"},
327 neighbors = {"group:igniter"},
331 action = function(pos)
332 local p = minetest.find_node_near(pos, 1, {"air"})
334 minetest.set_node(p, {name = "fire:basic_flame"})
339 -- Remove flammable nodes around basic flame
341 minetest.register_abm({
342 label = "Remove flammable nodes",
343 nodenames = {"fire:basic_flame"},
344 neighbors = "group:flammable",
348 action = function(pos)
349 local p = minetest.find_node_near(pos, 1, {"group:flammable"})
353 local flammable_node = minetest.get_node(p)
354 local def = minetest.registered_nodes[flammable_node.name]
358 minetest.remove_node(p)
359 minetest.check_for_falling(p)