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