VoxeLibre/mods/ENTITIES/mcl_mobs/spawning.lua

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--lua locals
local get_node = minetest.get_node
local get_item_group = minetest.get_item_group
local get_node_light = minetest.get_node_light
local find_nodes_in_area_under_air = minetest.find_nodes_in_area_under_air
local new_vector = vector.new
local math_random = math.random
local get_biome_name = minetest.get_biome_name
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local max = math.max
local get_objects_inside_radius = minetest.get_objects_inside_radius
local vector_distance = vector.distance
-- range for mob count
local aoc_range = 32
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--[[
THIS IS THE BIG LIST OF ALL BIOMES - used for programming/updating mobs
underground:
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"FlowerForest_underground",
"JungleEdge_underground",local spawning_position = spawning_position_list[math.random(1,#spawning_position_list)]
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"ColdTaiga_underground",
"IcePlains_underground",
"IcePlainsSpikes_underground",
"MegaTaiga_underground",
"Taiga_underground",
"ExtremeHills+_underground",
"JungleM_underground",
"ExtremeHillsM_underground",
"JungleEdgeM_underground",
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ocean:
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"RoofedForest_ocean",
"JungleEdgeM_ocean",
"BirchForestM_ocean",
"BirchForest_ocean",
"IcePlains_deep_ocean",
"Jungle_deep_ocean",
"Savanna_ocean",
"MesaPlateauF_ocean",
"ExtremeHillsM_deep_ocean",
"Savanna_deep_ocean",
"SunflowerPlains_ocean",
"Swampland_deep_ocean",
"Swampland_ocean",
"MegaSpruceTaiga_deep_ocean",
"ExtremeHillsM_ocean",
"JungleEdgeM_deep_ocean",
"SunflowerPlains_deep_ocean",
"BirchForest_deep_ocean",
"IcePlainsSpikes_ocean",
"Mesa_ocean",
"StoneBeach_ocean",
"Plains_deep_ocean",
"JungleEdge_deep_ocean",
"SavannaM_deep_ocean",
"Desert_deep_ocean",
"Mesa_deep_ocean",
"ColdTaiga_deep_ocean",
"Plains_ocean",
"MesaPlateauFM_ocean",
"Forest_deep_ocean",
"JungleM_deep_ocean",
"FlowerForest_deep_ocean",
"MushroomIsland_ocean",
"MegaTaiga_ocean",
"StoneBeach_deep_ocean",
"IcePlainsSpikes_deep_ocean",
"ColdTaiga_ocean",
"SavannaM_ocean",
"MesaPlateauF_deep_ocean",
"MesaBryce_deep_ocean",
"ExtremeHills+_deep_ocean",
"ExtremeHills_ocean",
"MushroomIsland_deep_ocean",
"Forest_ocean",
"MegaTaiga_deep_ocean",
"JungleEdge_ocean",
"MesaBryce_ocean",
"MegaSpruceTaiga_ocean",
"ExtremeHills+_ocean",
"Jungle_ocean",
"RoofedForest_deep_ocean",
"IcePlains_ocean",
"FlowerForest_ocean",
"ExtremeHills_deep_ocean",
"MesaPlateauFM_deep_ocean",
"Desert_ocean",
"Taiga_ocean",
"BirchForestM_deep_ocean",
"Taiga_deep_ocean",
"JungleM_ocean",
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water or beach?
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"MesaPlateauFM_sandlevel",
"MesaPlateauF_sandlevel",
"MesaBryce_sandlevel",
"Mesa_sandlevel",
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beach:
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"FlowerForest_beach",
"Forest_beach",
"StoneBeach",
"ColdTaiga_beach_water",
"Taiga_beach",
"Savanna_beach",
"Plains_beach",
"ExtremeHills_beach",
"ColdTaiga_beach",
"Swampland_shore",
"MushroomIslandShore",
"JungleM_shore",
"Jungle_shore",
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dimension biome:
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"Nether",
"End",
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Overworld regular:
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"Mesa",
"FlowerForest",
"Swampland",
"Taiga",
"ExtremeHills",
"Jungle",
"Savanna",
"BirchForest",
"MegaSpruceTaiga",
"MegaTaiga",
"ExtremeHills+",
"Forest",
"Plains",
"Desert",
"ColdTaiga",
"MushroomIsland",
"IcePlainsSpikes",
"SunflowerPlains",
"IcePlains",
"RoofedForest",
"ExtremeHills+_snowtop",
"MesaPlateauFM_grasstop",
"JungleEdgeM",
"ExtremeHillsM",
"JungleM",
"BirchForestM",
"MesaPlateauF",
"MesaPlateauFM",
"MesaPlateauF_grasstop",
"MesaBryce",
"JungleEdge",
"SavannaM",
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]]--
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local mobs_spawn = minetest.settings:get_bool("mobs_spawn", true) ~= false
-- count how many mobs of one type are inside an area
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local count_mobs = function(pos,mobtype)
print(mobtype)
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local num = 0
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local objs = get_objects_inside_radius(pos, aoc_range)
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for n = 1, #objs do
local obj = objs[n]:get_luaentity()
if obj and obj.name and obj._cmi_is_mob then
-- count hostile mobs only
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if mobtype == "hostile" then
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if obj.spawn_class == "hostile" then
num = num + 1
end
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-- count passive mobs only
else
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num = num + 1
end
end
end
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return num
end
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-- global functions
function mobs:spawn_abm_check(pos, node, name)
-- global function to add additional spawn checks
-- return true to stop spawning mob
end
--[[
Custom elements changed:
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name:
the mobs name
dimension:
"overworld"
"nether"
"end"
types of spawning:
"water"
"ground"
"lava"
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biomes: tells the spawner to allow certain mobs to spawn in certain biomes
{"this", "that", "grasslands", "whatever"}
what is aoc??? objects in area
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WARNING: BIOME INTEGRATION NEEDED -> How to get biome through lua??
]]--
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--this is where all of the spawning information is kept
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local spawn_dictionary = {}
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function mobs:spawn_specific(name, dimension, type_of_spawning, biomes, min_light, max_light, interval, chance, aoc, min_height, max_height, day_toggle, on_spawn)
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--print(dump(biomes))
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-- Do mobs spawn at all?
if not mobs_spawn then
return
end
-- chance/spawn number override in minetest.conf for registered mob
local numbers = minetest.settings:get(name)
if numbers then
numbers = numbers:split(",")
chance = tonumber(numbers[1]) or chance
aoc = tonumber(numbers[2]) or aoc
if chance == 0 then
minetest.log("warning", string.format("[mobs] %s has spawning disabled", name))
return
end
minetest.log("action",
string.format("[mobs] Chance setting for %s changed to %s (total: %s)", name, chance, aoc))
end
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--[[
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local spawn_action
spawn_action = function(pos, node, active_object_count, active_object_count_wider, name)
local orig_pos = table.copy(pos)
-- is mob actually registered?
if not mobs.spawning_mobs[name]
or not minetest.registered_entities[name] then
minetest.log("warning", "Mob spawn of "..name.." failed, unknown entity or mob is not registered for spawning!")
return
end
-- additional custom checks for spawning mob
if mobs:spawn_abm_check(pos, node, name) == true then
minetest.log("info", "Mob spawn of "..name.." at "..minetest.pos_to_string(pos).." failed, ABM check rejected!")
return
end
-- count nearby mobs in same spawn class
local entdef = minetest.registered_entities[name]
local spawn_class = entdef and entdef.spawn_class
if not spawn_class then
if entdef.type == "monster" then
spawn_class = "hostile"
else
spawn_class = "passive"
end
end
local in_class_cap = count_mobs(pos, "!"..spawn_class) < MOB_CAP[spawn_class]
-- do not spawn if too many of same mob in area
if active_object_count_wider >= max_per_block -- large-range mob cap
or (not in_class_cap) -- spawn class mob cap
or count_mobs(pos, name) >= aoc then -- per-mob mob cap
-- too many entities
minetest.log("info", "Mob spawn of "..name.." at "..minetest.pos_to_string(pos).." failed, too crowded!")
return
end
-- if toggle set to nil then ignore day/night check
if day_toggle ~= nil then
local tod = (minetest.get_timeofday() or 0) * 24000
if tod > 4500 and tod < 19500 then
-- daylight, but mob wants night
if day_toggle == false then
-- mob needs night
minetest.log("info", "Mob spawn of "..name.." at "..minetest.pos_to_string(pos).." failed, mob needs light!")
return
end
else
-- night time but mob wants day
if day_toggle == true then
-- mob needs day
minetest.log("info", "Mob spawn of "..name.." at "..minetest.pos_to_string(pos).." failed, mob needs daylight!")
return
end
end
end
-- spawn above node
pos.y = pos.y + 1
-- only spawn away from player
local objs = minetest.get_objects_inside_radius(pos, 24)
for n = 1, #objs do
if objs[n]:is_player() then
-- player too close
minetest.log("info", "Mob spawn of "..name.." at "..minetest.pos_to_string(pos).." failed, player too close!")
return
end
end
-- mobs cannot spawn in protected areas when enabled
if not spawn_protected
and minetest.is_protected(pos, "") then
minetest.log("info", "Mob spawn of "..name.." at "..minetest.pos_to_string(pos).." failed, position is protected!")
return
end
-- are we spawning within height limits?
if pos.y > max_height
or pos.y < min_height then
minetest.log("info", "Mob spawn of "..name.." at "..minetest.pos_to_string(pos).." failed, out of height limit!")
return
end
-- are light levels ok?
local light = minetest.get_node_light(pos)
if not light
or light > max_light
or light < min_light then
minetest.log("info", "Mob spawn of "..name.." at "..minetest.pos_to_string(pos).." failed, bad light!")
return
end
-- do we have enough space to spawn mob?
local ent = minetest.registered_entities[name]
local width_x = max(1, math.ceil(ent.collisionbox[4] - ent.collisionbox[1]))
local min_x, max_x
if width_x % 2 == 0 then
max_x = math.floor(width_x/2)
min_x = -(max_x-1)
else
max_x = math.floor(width_x/2)
min_x = -max_x
end
local width_z = max(1, math.ceil(ent.collisionbox[6] - ent.collisionbox[3]))
local min_z, max_z
if width_z % 2 == 0 then
max_z = math.floor(width_z/2)
min_z = -(max_z-1)
else
max_z = math.floor(width_z/2)
min_z = -max_z
end
local max_y = max(0, math.ceil(ent.collisionbox[5] - ent.collisionbox[2]) - 1)
for y = 0, max_y do
for x = min_x, max_x do
for z = min_z, max_z do
local pos2 = {x = pos.x+x, y = pos.y+y, z = pos.z+z}
if minetest.registered_nodes[node_ok(pos2).name].walkable == true then
-- inside block
minetest.log("info", "Mob spawn of "..name.." at "..minetest.pos_to_string(pos).." failed, too little space!")
if ent.spawn_small_alternative ~= nil and (not minetest.registered_nodes[node_ok(pos).name].walkable) then
minetest.log("info", "Trying to spawn smaller alternative mob: "..ent.spawn_small_alternative)
spawn_action(orig_pos, node, active_object_count, active_object_count_wider, ent.spawn_small_alternative)
end
return
end
end
end
end
-- tweak X/Y/Z spawn pos
if width_x % 2 == 0 then
pos.x = pos.x + 0.5
end
if width_z % 2 == 0 then
pos.z = pos.z + 0.5
end
pos.y = pos.y - 0.5
local mob = minetest.add_entity(pos, name)
minetest.log("action", "Mob spawned: "..name.." at "..minetest.pos_to_string(pos))
if on_spawn then
local ent = mob:get_luaentity()
on_spawn(ent, pos)
end
end
local function spawn_abm_action(pos, node, active_object_count, active_object_count_wider)
spawn_action(pos, node, active_object_count, active_object_count_wider, name)
end
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]]--
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local entdef = minetest.registered_entities[name]
local spawn_class
if entdef.type == "monster" then
spawn_class = "hostile"
else
spawn_class = "passive"
end
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--load information into the spawn dictionary
local key = #spawn_dictionary + 1
spawn_dictionary[key] = {}
spawn_dictionary[key]["name"] = name
spawn_dictionary[key]["dimension"] = dimension
spawn_dictionary[key]["type_of_spawning"] = type_of_spawning
spawn_dictionary[key]["biomes"] = biomes
spawn_dictionary[key]["min_light"] = min_light
spawn_dictionary[key]["max_light"] = max_light
spawn_dictionary[key]["interval"] = interval
spawn_dictionary[key]["chance"] = chance
spawn_dictionary[key]["aoc"] = aoc
spawn_dictionary[key]["min_height"] = min_height
spawn_dictionary[key]["max_height"] = max_height
spawn_dictionary[key]["day_toggle"] = day_toggle
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--spawn_dictionary[key]["on_spawn"] = spawn_abm_action
spawn_dictionary[key]["spawn_class"] = spawn_class
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--[[
minetest.register_abm({
label = name .. " spawning",
nodenames = nodes,
neighbors = neighbors,
interval = interval,
chance = floor(max(1, chance * mobs_spawn_chance)),
catch_up = false,
action = spawn_abm_action,
})
]]--
end
-- compatibility with older mob registration
-- we're going to forget about this for now -j4i
--[[
function mobs:register_spawn(name, nodes, max_light, min_light, chance, active_object_count, max_height, day_toggle)
mobs:spawn_specific(name, nodes, {"air"}, min_light, max_light, 30,
chance, active_object_count, -31000, max_height, day_toggle)
end
]]--
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--Don't disable this yet-j4i
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-- MarkBu's spawn function
function mobs:spawn(def)
--does nothing for now
--[[
local name = def.name
local nodes = def.nodes or {"group:soil", "group:stone"}
local neighbors = def.neighbors or {"air"}
local min_light = def.min_light or 0
local max_light = def.max_light or 15
local interval = def.interval or 30
local chance = def.chance or 5000
local active_object_count = def.active_object_count or 1
local min_height = def.min_height or -31000
local max_height = def.max_height or 31000
local day_toggle = def.day_toggle
local on_spawn = def.on_spawn
mobs:spawn_specific(name, nodes, neighbors, min_light, max_light, interval,
chance, active_object_count, min_height, max_height, day_toggle, on_spawn)
]]--
end
local axis
--inner and outer part of square donut radius
local inner = 1
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local outer = 65
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local int = {-1,1}
local position_calculation = function(pos)
pos = vector.floor(pos)
--this is used to determine the axis buffer from the player
axis = math.random(0,1)
--cast towards the direction
if axis == 0 then --x
pos.x = pos.x + math.random(inner,outer)*int[math.random(1,2)]
pos.z = pos.z + math.random(-outer,outer)
else --z
pos.z = pos.z + math.random(inner,outer)*int[math.random(1,2)]
pos.x = pos.x + math.random(-outer,outer)
end
return(pos)
end
--[[
local decypher_limits_dictionary = {
["overworld"] = {mcl_vars.mg_overworld_min,mcl_vars.mg_overworld_max},
["nether"] = {mcl_vars.mg_nether_min, mcl_vars.mg_nether_max},
["end"] = {mcl_vars.mg_end_min, mcl_vars.mg_end_max}
}
]]--
local function decypher_limits(posy)
--local min_max_table = decypher_limits_dictionary[dimension]
--return min_max_table[1],min_max_table[2]
posy = math.floor(posy)
return posy - 32, posy + 32
end
--a simple helper function for mob_spawn
local function biome_check(biome_list, biome_goal)
for _,data in ipairs(biome_list) do
if data == biome_goal then
return true
end
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end
return false
end
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--todo mob limiting
--MAIN LOOP
if mobs_spawn then
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local timer = 0
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minetest.register_globalstep(function(dtime)
timer = timer + dtime
if timer >= 8 then
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timer = 0
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for _,player in ipairs(minetest.get_connected_players()) do
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for i = 1,math.random(3,8) do
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local player_pos = player:get_pos()
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local _,dimension = mcl_worlds.y_to_layer(player_pos.y)
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if dimension == "void" or dimension == "default" then
goto continue -- ignore void and unloaded area
end
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local min,max = decypher_limits(player_pos.y)
local goal_pos = position_calculation(player_pos)
local spawning_position_list = find_nodes_in_area_under_air(new_vector(goal_pos.x,min,goal_pos.z), vector.new(goal_pos.x,max,goal_pos.z), {"group:solid", "group:water", "group:lava"})
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--couldn't find node
if #spawning_position_list <= 0 then
goto continue
end
local spawning_position = spawning_position_list[math_random(1,#spawning_position_list)]
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--Prevent strange behavior/too close to player
if not spawning_position or vector_distance(player_pos, spawning_position) < 15 then
goto continue
end
local gotten_node = get_node(spawning_position).name
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if not gotten_node or gotten_node == "air" then --skip air nodes
goto continue
end
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local gotten_biome = minetest.get_biome_data(spawning_position)
if not gotten_biome then
goto continue --skip if in unloaded area
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end
gotten_biome = get_biome_name(gotten_biome.biome) --makes it easier to work with
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--grab random mob
local mob_def = spawn_dictionary[math.random(1,#spawn_dictionary)]
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if not mob_def then
goto continue --skip if something ridiculous happens (nil mob def)
end
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--skip if not correct dimension
if mob_def.dimension ~= dimension then
goto continue
end
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--skip if not in correct biome
if not biome_check(mob_def.biomes, gotten_biome) then
goto continue
end
--add this so mobs don't spawn inside nodes
spawning_position.y = spawning_position.y + 1
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if spawning_position.y < mob_def.min_height or spawning_position.y > mob_def.max_height then
goto continue
end
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--only need to poll for node light if everything else worked
local gotten_light = get_node_light(spawning_position)
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--don't spawn if not in light limits
if gotten_light < mob_def.min_light or gotten_light > mob_def.max_light then
goto continue
end
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local is_water = get_item_group(gotten_node, "water") ~= 0
local is_lava = get_item_group(gotten_node, "lava") ~= 0
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if mob_def.type_of_spawning == "ground" and is_water then
goto continue
end
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if mob_def.type_of_spawning == "ground" and is_lava then
goto continue
end
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--finally do the heavy check (for now) of mobs in area
if count_mobs(spawning_position, mob_def.spawn_class) >= mob_def.aoc then
goto continue
end
--adjust the position for water and lava mobs
if mob_def.type_of_spawning == "water" or mob_def.type_of_spawning == "lava" then
spawning_position.y = spawning_position.y - 1
end
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--everything is correct, spawn mob
minetest.add_entity(spawning_position, mob_def.name)
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::continue:: --this is a safety catch
end
end
end
end)
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end