495 lines
14 KiB
Lua
495 lines
14 KiB
Lua
-- Global namespace for functions
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mcl_fire = {}
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local S = minetest.get_translator("mcl_fire")
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local N = function(s) return s end
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-- inverse pyramid pattern above lava source, floor 1 of 2:
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local lava_fire=
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{
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{ x =-1, y = 1, z =-1},
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{ x =-1, y = 1, z = 0},
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{ x =-1, y = 1, z = 1},
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{ x = 0, y = 1, z =-1},
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{ x = 0, y = 1, z = 0},
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{ x = 0, y = 1, z = 1},
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{ x = 1, y = 1, z =-1},
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{ x = 1, y = 1, z = 0},
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{ x = 1, y = 1, z = 1}
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}
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local alldirs=
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{
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{ x =-1, y = 0, z = 0},
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{ x = 1, y = 0, z = 0},
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{ x = 0, y =-1, z = 0},
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{ x = 0, y = 1, z = 0},
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{ x = 0, y = 0, z =-1},
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{ x = 0, y = 0, z = 1}
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}
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local spawn_smoke = function(pos)
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mcl_particles.add_node_particlespawner(pos, {
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amount = 0.1,
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time = 0,
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minpos = vector.add(pos, { x = -0.45, y = -0.45, z = -0.45 }),
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maxpos = vector.add(pos, { x = 0.45, y = 0.45, z = 0.45 }),
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minvel = { x = 0, y = 0.5, z = 0 },
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maxvel = { x = 0, y = 0.6, z = 0 },
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minexptime = 2.0,
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maxexptime = 2.0,
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minsize = 3.0,
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maxsize = 4.0,
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texture = "mcl_particles_smoke_anim.png^[colorize:#000000:127",
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animation = {
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type = "vertical_frames",
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aspect_w = 8,
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aspect_h = 8,
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length = 2.1,
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},
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}, "high")
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end
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--
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-- Items
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--
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-- Flame nodes
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-- Fire settings
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-- When enabled, fire destroys other blocks.
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local fire_enabled = minetest.settings:get_bool("enable_fire", true)
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-- Enable sound
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local flame_sound = minetest.settings:get_bool("flame_sound", true)
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-- Help texts
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local fire_help, eternal_fire_help
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if fire_enabled then
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fire_help = S("Fire is a damaging and destructive but short-lived kind of block. It will destroy and spread towards near flammable blocks, but fire will disappear when there is nothing to burn left. It will be extinguished by nearby water and rain. Fire can be destroyed safely by punching it, but it is hurtful if you stand directly in it. If a fire is started above netherrack or a magma block, it will immediately turn into an eternal fire.")
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else
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fire_help = S("Fire is a damaging but non-destructive short-lived kind of block. It will disappear when there is no flammable block around. Fire does not destroy blocks, at least not in this world. It will be extinguished by nearby water and rain. Fire can be destroyed safely by punching it, but it is hurtful if you stand directly in it. If a fire is started above netherrack or a magma block, it will immediately turn into an eternal fire.")
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end
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if fire_enabled then
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eternal_fire_help = S("Eternal fire is a damaging block that might create more fire. It will create fire around it when flammable blocks are nearby. Eternal fire can be extinguished by punches and nearby water blocks. Other than (normal) fire, eternal fire does not get extinguished on its own and also continues to burn under rain. Punching eternal fire is safe, but it hurts if you stand inside.")
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else
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eternal_fire_help = S("Eternal fire is a damaging block. Eternal fire can be extinguished by punches and nearby water blocks. Other than (normal) fire, eternal fire does not get extinguished on its own and also continues to burn under rain. Punching eternal fire is safe, but it hurts if you stand inside.")
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end
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local fire_death_messages = {
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N("@1 has been cooked crisp."),
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N("@1 felt the burn."),
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N("@1 died in the flames."),
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N("@1 died in a fire."),
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}
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local fire_timer = function(pos)
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minetest.get_node_timer(pos):start(math.random(3, 7))
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end
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local spawn_fire = function(pos, age)
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minetest.set_node(pos, {name="mcl_fire:fire", param2 = age})
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minetest.check_single_for_falling({x=pos.x, y=pos.y+1, z=pos.z})
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end
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minetest.register_node("mcl_fire:fire", {
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description = S("Fire"),
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_doc_items_longdesc = fire_help,
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drawtype = "firelike",
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tiles = {
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{
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name = "fire_basic_flame_animated.png",
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animation = {
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type = "vertical_frames",
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aspect_w = 16,
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aspect_h = 16,
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length = 1
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},
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},
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},
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inventory_image = "fire_basic_flame.png",
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paramtype = "light",
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light_source = minetest.LIGHT_MAX,
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walkable = false,
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buildable_to = true,
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sunlight_propagates = true,
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damage_per_second = 1,
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_mcl_node_death_message = fire_death_messages,
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groups = {fire = 1, dig_immediate = 3, not_in_creative_inventory = 1, dig_by_piston=1, destroys_items=1, set_on_fire=8},
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floodable = true,
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on_flood = function(pos, oldnode, newnode)
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if minetest.get_item_group(newnode.name, "water") ~= 0 then
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minetest.sound_play("fire_extinguish_flame", {pos = pos, gain = 0.25, max_hear_distance = 16}, true)
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end
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end,
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drop = "",
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sounds = {},
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-- Turn into eternal fire on special blocks, light Nether portal (if possible), start burning timer
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on_construct = function(pos)
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local bpos = {x=pos.x, y=pos.y-1, z=pos.z}
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local under = minetest.get_node(bpos).name
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local dim = mcl_worlds.pos_to_dimension(bpos)
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if under == "mcl_nether:magma" or under == "mcl_nether:netherrack" or (under == "mcl_core:bedrock" and dim == "end") then
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minetest.swap_node(pos, {name = "mcl_fire:eternal_fire"})
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end
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if minetest.get_modpath("mcl_portals") then
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mcl_portals.light_nether_portal(pos)
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end
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fire_timer(pos)
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spawn_smoke(pos)
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end,
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on_destruct = function(pos)
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mcl_particles.delete_node_particlespawners(pos)
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end,
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_mcl_blast_resistance = 0,
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})
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minetest.register_node("mcl_fire:eternal_fire", {
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description = S("Eternal Fire"),
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_doc_items_longdesc = eternal_fire_help,
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drawtype = "firelike",
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tiles = {
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{
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name = "fire_basic_flame_animated.png",
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animation = {
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type = "vertical_frames",
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aspect_w = 16,
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aspect_h = 16,
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length = 1
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},
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},
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},
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inventory_image = "fire_basic_flame.png",
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paramtype = "light",
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light_source = minetest.LIGHT_MAX,
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walkable = false,
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buildable_to = true,
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sunlight_propagates = true,
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damage_per_second = 1,
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_mcl_node_death_message = fire_death_messages,
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groups = {fire = 1, dig_immediate = 3, not_in_creative_inventory = 1, dig_by_piston = 1, destroys_items = 1, set_on_fire=8},
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floodable = true,
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on_flood = function(pos, oldnode, newnode)
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if minetest.get_item_group(newnode.name, "water") ~= 0 then
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minetest.sound_play("fire_extinguish_flame", {pos = pos, gain = 0.25, max_hear_distance = 16}, true)
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end
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end,
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on_construct = function(pos)
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if minetest.get_modpath("mcl_portals") then
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mcl_portals.light_nether_portal(pos)
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end
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spawn_smoke(pos)
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end,
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on_destruct = function(pos)
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mcl_particles.delete_node_particlespawners(pos)
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end,
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sounds = {},
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drop = "",
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_mcl_blast_resistance = 0,
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})
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--
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-- Sound
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--
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if flame_sound then
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local handles = {}
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local timer = 0
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-- Parameters
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local radius = 8 -- Flame node search radius around player
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local cycle = 3 -- Cycle time for sound updates
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-- Update sound for player
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function mcl_fire.update_player_sound(player)
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local player_name = player:get_player_name()
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-- Search for flame nodes in radius around player
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local ppos = player:get_pos()
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local areamin = vector.subtract(ppos, radius)
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local areamax = vector.add(ppos, radius)
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local fpos, num = minetest.find_nodes_in_area(
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areamin,
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areamax,
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{"mcl_fire:fire", "mcl_fire:eternal_fire"}
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)
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-- Total number of flames in radius
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local flames = (num["mcl_fire:fire"] or 0) +
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(num["mcl_fire:eternal_fire"] or 0)
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-- Stop previous sound
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if handles[player_name] then
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minetest.sound_fade(handles[player_name], -0.4, 0.0)
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handles[player_name] = nil
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end
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-- If flames
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if flames > 0 then
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-- Find centre of flame positions
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local fposmid = fpos[1]
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-- If more than 1 flame
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if #fpos > 1 then
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local fposmin = areamax
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local fposmax = areamin
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for i = 1, #fpos do
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local fposi = fpos[i]
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if fposi.x > fposmax.x then
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fposmax.x = fposi.x
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end
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if fposi.y > fposmax.y then
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fposmax.y = fposi.y
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end
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if fposi.z > fposmax.z then
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fposmax.z = fposi.z
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end
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if fposi.x < fposmin.x then
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fposmin.x = fposi.x
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end
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if fposi.y < fposmin.y then
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fposmin.y = fposi.y
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end
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if fposi.z < fposmin.z then
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fposmin.z = fposi.z
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end
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end
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fposmid = vector.divide(vector.add(fposmin, fposmax), 2)
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end
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-- Play sound
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local handle = minetest.sound_play(
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"fire_fire",
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{
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pos = fposmid,
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to_player = player_name,
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gain = math.min(0.06 * (1 + flames * 0.125), 0.18),
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max_hear_distance = 32,
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loop = true, -- In case of lag
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}
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)
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-- Store sound handle for this player
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if handle then
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handles[player_name] = handle
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end
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end
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end
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-- Cycle for updating players sounds
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minetest.register_globalstep(function(dtime)
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timer = timer + dtime
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if timer < cycle then
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return
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end
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timer = 0
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local players = minetest.get_connected_players()
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for n = 1, #players do
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mcl_fire.update_player_sound(players[n])
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end
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end)
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-- Stop sound and clear handle on player leave
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minetest.register_on_leaveplayer(function(player)
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local player_name = player:get_player_name()
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if handles[player_name] then
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minetest.sound_stop(handles[player_name])
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handles[player_name] = nil
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end
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end)
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end
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-- Set pointed_thing on (normal) fire.
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-- * pointed_thing: Pointed thing to ignite
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-- * player: Player who sets fire or nil if nobody
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-- * allow_on_fire: If false, can't ignite fire on fire (default: true)
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mcl_fire.set_fire = function(pointed_thing, player, allow_on_fire)
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local pname
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if player == nil then
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pname = ""
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else
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pname = player:get_player_name()
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end
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local n = minetest.get_node(pointed_thing.above)
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local nu = minetest.get_node(pointed_thing.under)
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if allow_on_fire == false and minetest.get_item_group(nu.name, "fire") ~= 0 then
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return
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end
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if minetest.is_protected(pointed_thing.above, pname) then
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minetest.record_protection_violation(pointed_thing.above, pname)
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return
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end
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if n.name == "air" then
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minetest.add_node(pointed_thing.above, {name="mcl_fire:fire"})
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end
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end
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--
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-- ABMs
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--
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-- Extinguish all flames quickly with water and such
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minetest.register_abm({
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label = "Extinguish fire",
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nodenames = {"mcl_fire:fire", "mcl_fire:eternal_fire"},
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neighbors = {"group:puts_out_fire"},
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interval = 3,
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chance = 1,
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catch_up = false,
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action = function(pos, node, active_object_count, active_object_count_wider)
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minetest.remove_node(pos)
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minetest.sound_play("fire_extinguish_flame",
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{pos = pos, max_hear_distance = 16, gain = 0.15}, true)
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end,
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})
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-- Enable the following ABMs according to 'enable fire' setting
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local function has_flammable(pos)
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local npos, node
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for n, v in ipairs(alldirs) do
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npos = vector.add(pos, v)
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node = minetest.get_node_or_nil(npos)
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if node and node.name and minetest.get_item_group(node.name, "flammable") ~= 0 then
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return npos
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end
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end
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return false
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end
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if not fire_enabled then
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-- Occasionally remove fire if fire disabled
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-- NOTE: Fire is normally extinguished in timer function
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minetest.register_abm({
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label = "Remove disabled fire",
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nodenames = {"mcl_fire:fire"},
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interval = 10,
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chance = 10,
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catch_up = false,
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action = minetest.remove_node,
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})
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else -- Fire enabled
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-- Set fire to air nodes
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minetest.register_abm({
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label = "Ignite fire by lava",
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nodenames = {"group:lava"},
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neighbors = {"air"},
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interval = 7,
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chance = 3,
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catch_up = false,
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action = function(pos)
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local i, dir, target, node, i2, f
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i = math.random(1,9)
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dir = lava_fire[i]
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target = {x=pos.x+dir.x, y=pos.y+dir.y, z=pos.z+dir.z}
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node = minetest.get_node(target)
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if not node or node.name ~= "air" then
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i = ((i + math.random(0,7)) % 9) + 1
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dir = lava_fire[i]
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target = {x=pos.x+dir.x, y=pos.y+dir.y, z=pos.z+dir.z}
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node = minetest.get_node(target)
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if not node or node.name ~= "air" then
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return
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end
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end
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i2 = math.random(1,15)
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if i2 < 10 then
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local dir2, target2, node2
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dir2 = lava_fire[i2]
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target2 = {x=target.x+dir2.x, y=target.y+dir2.y, z=target.z+dir2.z}
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node2 = minetest.get_node(target2)
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if node2 and node2.name == "air" then
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f = has_flammable(target2)
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if f then
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minetest.after(1, spawn_fire, {x=target2.x, y=target2.y, z=target2.z})
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minetest.add_particle({
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pos = vector.new({x=pos.x, y=pos.y+0.5, z=pos.z}),
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velocity={x=f.x-pos.x, y=math.max(f.y-pos.y,0.7), z=f.z-pos.z},
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expirationtime=1, size=1.5, collisiondetection=false,
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glow=minetest.LIGHT_MAX, texture="mcl_particles_flame.png"
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})
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return
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end
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end
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end
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f = has_flammable(target)
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if f then
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minetest.after(1, spawn_fire, {x=target.x, y=target.y, z=target.z})
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minetest.add_particle({
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pos = vector.new({x=pos.x, y=pos.y+0.5, z=pos.z}),
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velocity={x=f.x-pos.x, y=math.max(f.y-pos.y,0.25), z=f.z-pos.z},
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expirationtime=1, size=1, collisiondetection=false,
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glow=minetest.LIGHT_MAX, texture="mcl_particles_flame.png"
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})
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end
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end,
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})
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-- Ignite neighboring nodes, add basic flames
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minetest.register_abm({
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label = "Ignite flame",
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nodenames = {"group:flammable"},
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neighbors = {"mcl_fire:fire","mcl_fire:eternal_fire","mcl_core:lava_source","mcl_core:lava_flowing","mcl_nether:nether_lava_source","mcl_nether:nether_lava_flowing",},
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interval = 7,
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chance = 12,
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catch_up = false,
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action = function(pos)
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local p = minetest.find_node_near(pos, 1, {"air"})
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if p then
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minetest.set_node(p, {name = "mcl_fire:fire"})
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end
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end
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})
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-- Remove flammable nodes around basic flame
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minetest.register_abm({
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label = "Remove flammable nodes",
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nodenames = {"mc_fire:fire"},
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neighbors = "group:flammable",
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interval = 5,
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chance = 18,
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catch_up = false,
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action = function(pos)
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local p = minetest.find_node_near(pos, 1, {"group:flammable"})
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if not p then
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return
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end
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local flammable_node = minetest.get_node(p)
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local def = minetest.registered_nodes[flammable_node.name]
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if def.on_burn then
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def.on_burn(p)
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else
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minetest.remove_node(p)
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minetest.check_for_falling(p)
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end
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end
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|
})
|
|
end
|
|
|
|
minetest.register_lbm({
|
|
label = "Smoke particles from fire",
|
|
name = "mcl_fire:smoke",
|
|
nodenames = {"group:fire"},
|
|
run_at_every_load = true,
|
|
action = function(pos, node)
|
|
spawn_smoke(pos)
|
|
end,
|
|
})
|
|
|
|
minetest.register_alias("mcl_fire:basic_flame", "mcl_fire:fire")
|
|
minetest.register_alias("fire:basic_flame", "mcl_fire:fire")
|
|
minetest.register_alias("fire:permanent_flame", "mcl_fire:eternal_fire")
|
|
|
|
dofile(minetest.get_modpath(minetest.get_current_modname()).."/flint_and_steel.lua")
|
|
dofile(minetest.get_modpath(minetest.get_current_modname()).."/fire_charge.lua")
|