113 lines
2.4 KiB
Lua
113 lines
2.4 KiB
Lua
-- Parameters
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-- Node search radius around player
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local radius = 8
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local allsounds = {
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["env_sounds_water"] = {
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trigger = {"default:water_flowing", "default:river_water_flowing"},
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base_volume = 0.04,
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max_volume = 0.4,
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per_node = 0.004,
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},
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["env_sounds_lava"] = {
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trigger = {"default:lava_source", "default:lava_flowing"},
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base_volume = 0,
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max_volume = 0.6,
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per_node = {
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["default:lava_source"] = 0.008,
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["default:lava_flowing"] = 0.002,
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},
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},
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}
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if minetest.settings:get_bool("river_source_sounds") then
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table.insert(allsounds["env_sounds_water"].trigger,
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"default:river_water_source")
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end
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-- Cache the union of all trigger nodes
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local cache_triggers = {}
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for sound, def in pairs(allsounds) do
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for _, name in ipairs(def.trigger) do
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table.insert(cache_triggers, name)
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end
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end
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-- Update sound for player
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local function update_sound(player)
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local player_name = player:get_player_name()
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local ppos = player:get_pos()
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ppos = vector.add(ppos, player:get_properties().eye_height)
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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 pos = minetest.find_nodes_in_area(areamin, areamax, cache_triggers, true)
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if next(pos) == nil then -- If table empty
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return
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end
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for sound, def in pairs(allsounds) do
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-- Find average position
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local posav = {0, 0, 0}
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local count = 0
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for _, name in ipairs(def.trigger) do
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if pos[name] then
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for _, p in ipairs(pos[name]) do
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posav[1] = posav[1] + p.x
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posav[2] = posav[2] + p.y
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posav[3] = posav[3] + p.z
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end
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count = count + #pos[name]
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end
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end
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if count > 0 then
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posav = vector.new(posav[1] / count, posav[2] / count,
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posav[3] / count)
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-- Calculate gain
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local gain = def.base_volume
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if type(def.per_node) == 'table' then
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for name, multiplier in pairs(def.per_node) do
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if pos[name] then
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gain = gain + #pos[name] * multiplier
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end
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end
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else
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gain = gain + count * def.per_node
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end
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gain = math.min(gain, def.max_volume)
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minetest.sound_play(sound, {
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pos = posav,
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to_player = player_name,
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gain = gain,
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}, true)
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end
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end
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end
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-- Update sound when player joins
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minetest.register_on_joinplayer(function(player)
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update_sound(player)
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end)
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-- Cyclic sound update
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local function cyclic_update()
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for _, player in pairs(minetest.get_connected_players()) do
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update_sound(player)
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end
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minetest.after(3.5, cyclic_update)
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end
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minetest.after(0, cyclic_update)
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