2020-12-24 17:48:40 +01:00
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mcl_burning = {}
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local S = minetest.get_translator("mcl_burning")
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function mcl_burning.play_sound(obj, soundname)
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minetest.sound_play(soundname, {
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object = obj,
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gain = 0.18,
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max_hear_distance = 32,
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})
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end
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function mcl_burning.get_collisionbox(obj)
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local box = obj:get_properties().collisionbox
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return vector.new(box[1], box[2], box[3]), vector.new(box[4], box[5], box[6])
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end
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function mcl_burning.is_touching_nodes(obj, nodes)
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local pos = obj:get_pos()
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local box = obj:get_properties().collisionbox
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local minp, maxp = mcl_burning.get_collisionbox(obj)
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local nodes = minetest.find_nodes_in_area(vector.add(pos, minp), vector.add(pos, maxp), nodes)
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return #nodes > 0
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end
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function mcl_burning.create_particlespawner(obj, burn_time, old_burn_time, old_spawner)
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local new_spawner
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if old_spawner == 0 then
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old_spawner = nil
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end
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local delete_old_spawner = false
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if burn_time and (not old_spawner or burn_time >= old_burn_time) then
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delete_old_spawner = true
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local minp, maxp = mcl_burning.get_collisionbox(obj)
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new_spawner = minetest.add_particlespawner({
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amount = 1000 * burn_time,
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time = burn_time,
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minpos = minp,
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maxpos = maxp,
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minvel = {x = -0.5, y = 1, z = -0.5},
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maxvel = {x = 0.5, y = 2, z = -0.5},
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minacc = {x = -0.1, y = 8, z = -0.1},
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maxacc = {x = 0.1, y = 10, z = 0.1},
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minexptime = 0.2,
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maxexptime = 0.3,
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minsize = 1,
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maxsize = 2,
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collisiondetection = true,
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texture = "fire_basic_flame.png",
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attached = obj,
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})
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elseif not burn_time and old_spawner then
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delete_old_spawner = true
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end
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if delete_old_spawner and old_spawner then
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minetest.delete_particlespawner(old_spawner)
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old_spawner = nil
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end
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return new_spawner or old_spawner
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end
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function mcl_burning.analyse(obj, meta, is_player)
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if meta then
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return meta, is_player
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end
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is_player = obj:is_player()
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if is_player then
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meta = obj:get_meta()
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else
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meta = obj:get_luaentity()
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end
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return meta, is_player
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end
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function mcl_burning.set_burning(obj, burn_time, old_burn_time, meta, is_player)
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meta, is_player = mcl_burning.analyse(obj, meta, is_player)
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old_burn_time = old_burn_time or mcl_burning.get_burning(obj, meta, is_player)
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if burn_time <= 0 then
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burn_time = nil
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end
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if is_player then
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if burn_time then
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meta:set_float("mcl_burning:burn_time", burn_time)
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elseif old_burn_time > 0 then
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meta:set_string("mcl_burning:burn_time", "")
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mcl_burning.play_sound(obj, "fire_extinguish_flame")
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end
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local fire_spawner = mcl_burning.create_particlespawner(obj, burn_time, old_burn_time, meta:get_int("mcl_burning:fire_spawner"))
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if fire_spawner then
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meta:set_int("mcl_burning:fire_spawner", fire_spawner)
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else
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meta:set_string("mcl_burning:fire_spawner", "")
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end
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elseif not meta._fire_resistant then
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meta._burn_time = burn_time
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meta._fire_spawner = mcl_burning.create_particlespawner(obj, burn_time, old_burn_time, meta._fire_spawner)
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if not burn_time and old_burn_time > 0 then
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mcl_burning.play_sound(obj, "fire_extinguish_flame")
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end
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end
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end
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function mcl_burning.get_burning(obj, meta, is_player)
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meta, is_player = mcl_burning.analyse(obj, meta, is_player)
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if is_player then
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return meta:get_float("mcl_burning:burn_time")
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else
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return meta._burn_time or 0
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end
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end
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function mcl_burning.damage(obj, meta, is_player)
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local hp
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if is_player then
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hp = obj:get_hp()
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else
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hp = meta.health or 0
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end
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if hp <= 0 then
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return
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end
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meta, is_player = mcl_burning.analyse(obj, meta, is_player)
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local do_damage = true
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if is_player then
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2020-12-24 17:55:33 +01:00
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if mcl_potions.player_has_effect(obj, "fire_proof") then
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2020-12-24 17:48:40 +01:00
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do_damage = false
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else
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local name = obj:get_player_name()
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armor.last_damage_types[name] = "fire"
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mcl_death_messages.player_damage(obj, S("@1 burned to a crisp.", name))
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end
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end
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if do_damage then
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if is_player then
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obj:set_hp(hp - 1)
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else
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meta.health = hp - 1
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end
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end
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end
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local etime = 0
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function mcl_burning.step(obj, dtime)
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local burn_time, old_burn_time, meta, is_player
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meta, is_player = mcl_burning.analyse(obj)
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old_burn_time = mcl_burning.get_burning(obj, meta, is_player)
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burn_time = old_burn_time - dtime
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if burn_time < 5 and mcl_burning.is_touching_nodes(obj, {"mcl_fire:fire", "mcl_fire:eternal_fire", "mcl_core:lava_source", "mcl_core:lava_flowing"}) then
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burn_time = 5
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end
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if burn_time > 0 or old_burn_time > 0 then
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if mcl_weather.get_weather() == "rain" and mcl_weather.is_outdoor(obj:get_pos()) or mcl_burning.is_touching_nodes(obj, {"mcl_core:water_source", "mcl_core:water_flowing"}) then
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burn_time = math.min(burn_time, 0.25)
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end
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mcl_burning.set_burning(obj, burn_time, old_burn_time, meta, is_player)
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end
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if burn_time > 0 then
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if math.random() < dtime then
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mcl_burning.play_sound(obj, "fire_fire")
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end
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if etime > 1 then
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mcl_burning.damage(obj, meta, is_player)
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end
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end
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end
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minetest.register_globalstep(function(dtime)
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if etime > 1 then
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etime = 0
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end
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etime = etime + dtime
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for _, player in ipairs(minetest.get_connected_players()) do
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mcl_burning.step(player, dtime)
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end
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end)
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minetest.register_on_respawnplayer(function(player)
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mcl_burning.set_burning(player, 0)
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end)
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minetest.register_chatcommand("burn", {
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func = function(name, param)
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local player = minetest.get_player_by_name(name)
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local burn_time = tonumber(param) or 5
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if player then
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mcl_burning.set_burning(player, burn_time)
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end
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end
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})
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