76 lines
2.0 KiB
Lua
76 lines
2.0 KiB
Lua
-- LUALOCALS < ---------------------------------------------------------
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local math, minetest, nodecore, pairs, vector
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= math, minetest, nodecore, pairs, vector
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local math_exp, math_random, math_sin, math_sqrt
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= math.exp, math.random, math.sin, math.sqrt
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-- LUALOCALS > ---------------------------------------------------------
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local function windiness(y)
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if y < 0 then return 0 end
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if y > 512 then y = 512 end
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return math_sqrt(y) * (1 + 0.5 * math_sin(minetest.get_gametime() / 5))
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end
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nodecore.register_ambiance({
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label = "Tree Leaves Ambiance",
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nodenames = {"nc_tree:leaves"},
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neigbors = {"air"},
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interval = 1,
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chance = 100,
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sound_name = "nc_envsound_tree",
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check = function(pos)
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pos.y = pos.y + 1
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if pos.y <= 0 then return end
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return minetest.get_node(pos).name == "air"
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and minetest.get_node_light(pos, 0.5) == 15
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and { gain = windiness(pos.y) / 20 }
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end
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})
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local function check(pos, done)
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local sp = {
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x = pos.x + math_random() * 64 - 32,
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y = pos.y + math_random() * 64 - 32,
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z = pos.z + math_random() * 64 - 32,
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}
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local dist = vector.distance(sp, pos)
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if dist > 32 or dist < 4 then return end
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for p in pairs(done) do
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if vector.distance(sp, p) < 32 then return end
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end
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if minetest.get_node(sp).name ~= "air" then return end
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local light = minetest.get_node_light(sp, 0.5)
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if light == 15 then
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if sp.y <= 0 then return end
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minetest.sound_play("nc_envsound_air", {
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pos = sp,
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gain = windiness(sp.y) / 100
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})
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elseif light < 4 then
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minetest.sound_play("nc_envsound_drip", {
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pos = sp,
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pitchvary = 0.4,
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gain = math_exp(math_random()) / 5
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})
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end
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done[pos] = true
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end
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local oldpos = {}
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local function run()
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minetest.after(math_random(), run)
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local done = {}
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for _, pl in pairs(minetest.get_connected_players()) do
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local pname = pl:get_player_name()
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local pos = pl:get_pos()
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local op = oldpos[pname] or pos
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oldpos[pname] = pos
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pos = vector.add(pos, vector.multiply(vector.subtract(pos, op), 3))
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check(pos, done)
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end
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end
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run()
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