mods/mob/spawning.lua

   1 --this is where mob spawning is defined
   2
   3 --spawn mob in a square doughnut shaped radius
   4 local chance = 2
   5 local tick = 0.2
   6 local timer = 0
   7 --inner and outer part of square donut radius
   8 local inner = 24
   9 local outer = 128
  10
  11 --for debug testing to isolate mobs
  12 local spawn = true
  13
  14 local spawn_table = {"pig"}
  15 local dark_spawn_table = {"slime","creepig"}
  16 local aether_spawn_table = {"flying_pig"}
  17
  18 minetest.register_globalstep(function(dtime)
  19         if spawn then
  20         timer = timer + dtime
  21         if timer >= tick and math.random(1,chance) == chance then
  22                 --print("ticking")
  23                 timer = 0
  24                 --check through players
  25                 for _,player in ipairs(minetest.get_connected_players()) do
  26                         --don't spawn near dead players
  27                         if player:get_hp() > 0 then
  28
  29                                 --local mob_number = math.random(0,2)
  30
  31                                 local int = {-1,1}
  32                                 local pos = vector.floor(vector.add(player:getpos(),0.5))
  33
  34                                 local x,z
  35
  36                                 --this is used to determine the axis buffer from the player
  37                                 local axis = math.random(0,1)
  38
  39                                 --cast towards the direction
  40                                 if axis == 0 then --x
  41                                         x = pos.x + math.random(inner,outer)*int[math.random(1,2)]
  42                                         z = pos.z + math.random(-outer,outer)
  43                                 else --z
  44                                         z = pos.z + math.random(inner,outer)*int[math.random(1,2)]
  45                                         x = pos.x + math.random(-outer,outer)
  46                                 end
  47
  48                                 local spawner
  49                                 if pos.y >= 21000 then
  50                                         spawner = minetest.find_nodes_in_area_under_air(vector.new(x,pos.y-32,z), vector.new(x,pos.y+32,z), {"aether:grass"})
  51                                 else
  52                                         spawner = minetest.find_nodes_in_area_under_air(vector.new(x,pos.y-32,z), vector.new(x,pos.y+32,z), {"main:grass","main:sand","main:water"})
  53                                 end
  54
  55                                 --print(dump(spawner))
  56                                 if table.getn(spawner) > 0 then
  57                                         local mob_pos = spawner[1]
  58                                         --aether spawning
  59                                         if mob_pos.y >= 21000 then
  60                                                 mob_pos.y = mob_pos.y + 1
  61                                                 local mob_spawning = aether_spawn_table[math.random(1,table.getn(spawn_table))]
  62                                                 print("Aether Spawning "..mob_spawning.." at: "..minetest.pos_to_string(mob_pos))
  63                                                 minetest.add_entity(mob_pos,"mob:"..mob_spawning)
  64
  65                                         else
  66                         local light_level = minetest.get_node_light(spawner[1])
  67                         if light_level < 10 then
  68                             mob_pos.y = mob_pos.y + 1
  69                             local mob_spawning = dark_spawn_table[math.random(1,table.getn(dark_spawn_table))]
  70                             print("Dark Spawning "..mob_spawning.." at: "..minetest.pos_to_string(mob_pos))
  71                             minetest.add_entity(mob_pos,"mob:"..mob_spawning)
  72                         else
  73                             mob_pos.y = mob_pos.y + 1
  74                             local mob_spawning = spawn_table[math.random(1,table.getn(spawn_table))]
  75                             print("Light Spawning "..mob_spawning.." at: "..minetest.pos_to_string(mob_pos))
  76                             minetest.add_entity(mob_pos,"mob:"..mob_spawning)
  77                         end
  78                                         end
  79                                 end
  80                         end
  81                 end
  82         elseif timer > tick then
  83                 timer = 0
  84         end
  85         end
  86 end)