mods/mob/spawning.lua

   1 --this is where mob spawning is defined
   2
   3 --spawn mob in a square doughnut shaped radius
   4 local timer = 6
   5 --the amount of mobs that the game will try to spawn
   6 local spawn_goal = 30
   7 --inner and outer part of square donut radius
   8 local inner = 24
   9 local outer = 80
  10 --the height in which the game will search the x and z chosen (NUMBER up, NUMBER down)
  11 local find_node_height = 32
  12
  13 --for debug testing to isolate mobs
  14 local spawn = true
  15
  16 local spawn_table = {"pig","chicken","sheep"}
  17 local snow_spawn_table = {"snowman","snoider","sneeper",}
  18 local dark_spawn_table = {"creeper","creeper","creeper","spider","spider","spider","big_slime","medium_slime","small_slime"}
  19 local nether_spawn_table = {"nitro_creeper"}
  20 local aether_spawn_table = {"phyg"}
  21
  22 local function spawn_mobs()
  23         --print("---------------------------------------------")
  24         if spawn and global_mob_amount < mob_limit then
  25                 --check through players
  26                 for _,player in ipairs(minetest.get_connected_players()) do
  27                         local int = {-1,1}
  28                         local pos = vector.floor(vector.add(player:get_pos(),0.5))
  29
  30                         local x,z
  31
  32                         --this is used to determine the axis buffer from the player
  33                         local axis = math.random(0,1)
  34
  35                         --cast towards the direction
  36                         if axis == 0 then --x
  37                                 x = pos.x + math.random(inner,outer)*int[math.random(1,2)]
  38                                 z = pos.z + math.random(-outer,outer)
  39                         else --z
  40                                 z = pos.z + math.random(inner,outer)*int[math.random(1,2)]
  41                                 x = pos.x + math.random(-outer,outer)
  42                         end
  43
  44                         local spawner = {}
  45                         if pos.y >= 21000 then
  46                                 spawner = minetest.find_nodes_in_area_under_air(vector.new(x,pos.y-find_node_height,z), vector.new(x,pos.y+find_node_height,z), {"aether:grass"})
  47                         elseif pos.y <= -10033 and pos.y >= -20112 then
  48                                 spawner = minetest.find_nodes_in_area_under_air(vector.new(x,pos.y-find_node_height,z), vector.new(x,pos.y+find_node_height,z), {"nether:netherrack"})
  49                         else
  50                                 spawner = minetest.find_nodes_in_area_under_air(vector.new(x,pos.y-find_node_height,z), vector.new(x,pos.y+find_node_height,z), {"main:grass","main:sand","main:water"})
  51                         end
  52
  53                         --print(dump(spawner))
  54                         if table.getn(spawner) > 0 then
  55                                 local mob_pos = spawner[1]
  56                                 mob_pos.y = mob_pos.y + 1
  57                                 --aether spawning
  58                                 if mob_pos.y >= 21000 then
  59                                         local mob_spawning = aether_spawn_table[math.random(1,table.getn(aether_spawn_table))]
  60                                         --print("Aether Spawning "..mob_spawning.." at: "..minetest.pos_to_string(mob_pos))
  61                                         minetest.add_entity(mob_pos,"mob:"..mob_spawning)
  62                                 elseif mob_pos.y <= -10033 and mob_pos.y >= -20112 then
  63                                         local mob_spawning = nether_spawn_table[math.random(1,table.getn(nether_spawn_table))]
  64                                         --print("Nether Spawning "..mob_spawning.." at: "..minetest.pos_to_string(mob_pos))
  65                                         minetest.add_entity(mob_pos,"mob:"..mob_spawning)
  66                                 else
  67                                         local light_level = minetest.get_node_light(spawner[1])
  68                                         if weather_type == 1 then
  69                                                 local mob_spawning = snow_spawn_table[math.random(1,table.getn(snow_spawn_table))]
  70                                                 --print("Snow Spawning "..mob_spawning.." at: "..minetest.pos_to_string(mob_pos))
  71                                                 minetest.add_entity(mob_pos,"mob:"..mob_spawning)
  72                                         elseif light_level < 10 then
  73                                                 local mob_spawning = dark_spawn_table[math.random(1,table.getn(dark_spawn_table))]
  74                                                 --print("Dark Spawning "..mob_spawning.." at: "..minetest.pos_to_string(mob_pos))
  75                                                 minetest.add_entity(mob_pos,"mob:"..mob_spawning)
  76                                         else
  77                                                 local mob_spawning = spawn_table[math.random(1,table.getn(spawn_table))]
  78                                                 --print("Light Spawning "..mob_spawning.." at: "..minetest.pos_to_string(mob_pos))
  79                                                 minetest.add_entity(mob_pos,"mob:"..mob_spawning)
  80                                         end
  81                                 end
  82                         end
  83                 end
  84         end
  85         minetest.after(global_mob_amount/spawn_goal, function()
  86                 spawn_mobs()
  87         end)
  88 end
  89 minetest.register_on_mods_loaded(function()
  90         minetest.after(0,function()
  91                 spawn_mobs()
  92         end)
  93 end)