Hyper-optimize mob spawning
jordan4ibanez
parent
ecebe0253c
commit
7c1adeab45
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@ -9,6 +9,8 @@ local get_biome_name = minetest.get_biome_name
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local max = math.max
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local get_objects_inside_radius = minetest.get_objects_inside_radius
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local vector_distance = vector.distance
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local table_copy = table.copy
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local math_random = math.random
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-- range for mob count
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local aoc_range = 32
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@ -155,27 +157,15 @@ Overworld regular:
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local mobs_spawn = minetest.settings:get_bool("mobs_spawn", true) ~= false
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mobs_spawn = false
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-- count how many mobs of one type are inside an area
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local count_mobs = function(pos,mobtype)
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-- count how many mobs are in an area
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local count_mobs = function(pos)
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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
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local obj = objs[n]:get_luaentity()
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if obj and obj.name and obj._cmi_is_mob then
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-- count hostile mobs only
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if mobtype == "hostile" then
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if obj.spawn_class == "hostile" then
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num = num + 1
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end
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-- count passive mobs only
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else
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num = num + 1
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end
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for _,object in pairs(get_objects_inside_radius(pos, aoc_range)) do
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if object and object:get_luaentity() and object.name and object._cmi_is_mob then
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num = num + 1
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end
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end
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return num
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end
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@ -485,8 +475,8 @@ end
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local axis
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--inner and outer part of square donut radius
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local inner = 1
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local outer = 65
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local inner = 15
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local outer = 64
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local int = {-1,1}
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local position_calculation = function(pos)
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@ -540,108 +530,161 @@ if mobs_spawn then
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local timer = 0
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minetest.register_globalstep(function(dtime)
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timer = timer + dtime
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if timer >= 8 then
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if timer >= 10 then
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timer = 0
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for _,player in pairs(minetest.get_connected_players()) do
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for i = 1,math_random(3,8) do
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repeat -- after this line each "break" means "continue"
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local player_pos = player:get_pos()
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-- after this line each "break" means "continue"
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local do_mob_spawning = true
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repeat
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--don't need to get these variables more than once
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--they happen in a single server step
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local _,dimension = mcl_worlds.y_to_layer(player_pos.y)
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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
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break -- ignore void and unloaded area
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end
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if dimension == "void" or dimension == "default" then
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break -- ignore void and unloaded area
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end
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local min,max = decypher_limits(player_pos.y)
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local min,max = decypher_limits(player_pos.y)
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local goal_pos = position_calculation(player_pos)
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for i = 1,math_random(1,4) do
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-- after this line each "break" means "continue"
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local do_mob_algorithm = true
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repeat
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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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local goal_pos = position_calculation(player_pos)
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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
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if #spawning_position_list <= 0 then
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break
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end
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local spawning_position = spawning_position_list[math_random(1,#spawning_position_list)]
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--Prevent strange behavior --- this is commented out: /too close to player --fixed with inner circle
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if not spawning_position then -- or vector_distance(player_pos, spawning_position) < 15
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break
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end
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--hard code mob limit in area to 10 for now
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if count_mobs(spawning_position) >= 10 then
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break
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end
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local gotten_node = get_node(spawning_position).name
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if not gotten_node or gotten_node == "air" then --skip air nodes
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break
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end
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local gotten_biome = minetest.get_biome_data(spawning_position)
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if not gotten_biome then
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break --skip if in unloaded area
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end
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gotten_biome = get_biome_name(gotten_biome.biome) --makes it easier to work with
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--add this so mobs don't spawn inside nodes
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spawning_position.y = spawning_position.y + 1
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--only need to poll for node light if everything else worked
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local gotten_light = get_node_light(spawning_position)
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local is_water = get_item_group(gotten_node, "water") ~= 0
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local is_lava = get_item_group(gotten_node, "lava") ~= 0
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local mob_def = nil
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--create a disconnected clone of the spawn dictionary
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--prevents memory leak
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local mob_library_worker_table = table_copy(spawn_dictionary)
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--grab mob that fits into the spawning location
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--randomly grab a mob, don't exclude any possibilities
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local repeat_mob_search = true
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repeat
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local skip = false
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--use this for removing table elements of mobs that do not match
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local temp_index = math_random(1,#mob_library_worker_table)
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local temp_def = mob_library_worker_table[temp_index]
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--skip if something ridiculous happens (nil mob def)
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--something truly horrible has happened if skip gets
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--activated at this point
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if not temp_def then
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skip = true
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end
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if not skip and (spawning_position.y < temp_def.min_height or spawning_position.y > temp_def.max_height) then
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skip = true
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end
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--skip if not correct dimension
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if not skip and (temp_def.dimension ~= dimension) then
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skip = true
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end
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--skip if not in correct biome
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if not skip and (not biome_check(temp_def.biomes, gotten_biome)) then
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skip = true
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end
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--don't spawn if not in light limits
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if not skip and (gotten_light < temp_def.min_light or gotten_light > temp_def.max_light) then
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skip = true
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end
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--skip if not in correct spawning type
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if not skip and (temp_def.type_of_spawning == "ground" and is_water) then
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skip = true
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end
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if not skip and (temp_def.type_of_spawning == "ground" and is_lava) then
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skip = true
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end
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--found a mob, exit out of loop
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if not skip then
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--print("found mob:"..temp_def.name)
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mob_def = table_copy(temp_def)
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break
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else
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--print("deleting temp index")
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table.remove(mob_library_worker_table, temp_index)
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end
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until repeat_mob_search == false --this is needed to sort through mobs randomly
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--catch if went through all mobs and something went horribly wrong
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--could not find a valid mob to spawn that fits the environment
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if not mob_def then
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break
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end
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--adjust the position for water and lava mobs
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if mob_def.type_of_spawning == "water" or mob_def.type_of_spawning == "lava" then
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spawning_position.y = spawning_position.y - 1
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end
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--print("spawning: " .. mob_def.name)
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--everything is correct, spawn mob
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minetest.add_entity(spawning_position, mob_def.name)
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--couldn't find node
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if #spawning_position_list <= 0 then
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break
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end
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until do_mob_algorithm == false --this is a safety catch
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end
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local spawning_position = spawning_position_list[math_random(1,#spawning_position_list)]
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--Prevent strange behavior/too close to player
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if not spawning_position or vector_distance(player_pos, spawning_position) < 15 then
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break
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end
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local gotten_node = get_node(spawning_position).name
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if not gotten_node or gotten_node == "air" then --skip air nodes
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break
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end
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local gotten_biome = minetest.get_biome_data(spawning_position)
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if not gotten_biome then
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break --skip if in unloaded area
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end
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gotten_biome = get_biome_name(gotten_biome.biome) --makes it easier to work with
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--grab random mob
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local mob_def = spawn_dictionary[math.random(1,#spawn_dictionary)]
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if not mob_def then
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break --skip if something ridiculous happens (nil mob def)
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end
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--skip if not correct dimension
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if mob_def.dimension ~= dimension then
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break
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end
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--skip if not in correct biome
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if not biome_check(mob_def.biomes, gotten_biome) then
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break
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end
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--add this so mobs don't spawn inside nodes
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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
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break
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end
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--only need to poll for node light if everything else worked
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local gotten_light = get_node_light(spawning_position)
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--don't spawn if not in light limits
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if gotten_light < mob_def.min_light or gotten_light > mob_def.max_light then
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break
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end
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local is_water = get_item_group(gotten_node, "water") ~= 0
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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
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break
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end
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if mob_def.type_of_spawning == "ground" and is_lava then
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break
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end
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--finally do the heavy check (for now) of mobs in area
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if count_mobs(spawning_position, mob_def.spawn_class) >= mob_def.aoc then
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break
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end
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--adjust the position for water and lava mobs
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if mob_def.type_of_spawning == "water" or mob_def.type_of_spawning == "lava" then
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spawning_position.y = spawning_position.y - 1
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end
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--everything is correct, spawn mob
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minetest.add_entity(spawning_position, mob_def.name)
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until true --this is a safety catch
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end
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break
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until do_mob_spawning == false --this is a performance catch
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end
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end
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end)
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