environment_effects.lua

   1 local minetest,math = minetest,math
   2
   3 local old_node
   4 local in_water = false
   5 local old_in_water = false
   6 --this is to check if the player is exploring a cave
   7 --if exploring cave not near an open shaft then play a scary noise
   8 --every 5-7 minutes
   9 local scary_sound_player_timer = math.random(-120,0)
  10
  11
  12 --this is used for the water trickling effect
  13 local water_trickling_timer = 0
  14 local water_sound_handle = nil
  15
  16 local function splash_effect()
  17         if minetest.localplayer then
  18                 local vel = minetest.localplayer:get_velocity().y
  19                 local pos = minetest.localplayer:get_pos()
  20                 local node = minetest.get_node_or_nil(pos)
  21
  22                 if node then
  23                         local name = node.name
  24                         if name == "main:water" or name == "main:waterflow" then
  25                                 in_water = true
  26                                 if in_water == true and old_in_water == false and vel < 0 then
  27                                         minetest.sound_play("splash", {gain = 0.4, pitch = math.random(80,100)/100, gain = 0.05})
  28                                 end
  29                         else
  30                                 in_water = false
  31                         end
  32                 end
  33
  34                 old_node = node
  35                 old_in_water = in_water
  36         end
  37         minetest.after(0.01, function()
  38                 splash_effect()
  39         end)
  40 end
  41 splash_effect()
  42
  43
  44
  45 ---------------------------------------------
  46
  47
  48 local function scary_sound_timer()
  49         --print(scary_sound_player_timer)
  50         --try to play every 5-7 minutes
  51         if minetest.localplayer then
  52                 local pos = minetest.localplayer:get_pos()
  53                 pos.y = pos.y + 1.625
  54                 local light = minetest.get_node_light(pos)
  55                 if pos.y < 0 and light <= 13 then
  56                         minetest.sound_play("scary_noise",{gain=0.4,pitch=math.random(70,100)/100})
  57                 end
  58         end
  59         minetest.after(300+math.random(0,120), function()
  60                 scary_sound_timer()
  61         end)
  62 end
  63
  64 minetest.after(300+math.random(0,120), function()
  65         scary_sound_timer()
  66 end)
  67
  68
  69 ------------------------------------------------------
  70
  71 local function water_trickle()
  72         if minetest.localplayer then
  73                 local pos = minetest.localplayer:get_pos()
  74                 local is_water_near = minetest.find_node_near(pos, 3, {"main:waterflow"})
  75                 if is_water_near and not water_sound_handle then
  76                         water_sound_handle = minetest.sound_play("stream", {loop=true,gain=0})
  77                         minetest.sound_fade(water_sound_handle, 0.25, 0.1)
  78                 elseif not is_water_near and water_sound_handle then
  79                         minetest.sound_fade(water_sound_handle, -0.25, 0)
  80                         water_sound_handle = nil
  81                 end
  82         end
  83         minetest.after(0.1, function()
  84                 water_trickle()
  85         end)
  86 end
  87
  88 water_trickle()