--lua locals local math, vector, minetest, mcl_mobs = math, vector, minetest, mcl_mobs local mob_class = mcl_mobs.mob_class local modern_lighting = minetest.settings:get_bool("mcl_mobs_modern_lighting", true) local nether_threshold = tonumber(minetest.settings:get("mcl_mobs_nether_threshold")) or 11 local end_threshold = tonumber(minetest.settings:get("mcl_mobs_end_threshold")) or 0 local overworld_threshold = tonumber(minetest.settings:get("mcl_mobs_overworld_threshold")) or 0 local overworld_sky_threshold = tonumber(minetest.settings:get("mcl_mobs_overworld_sky_threshold")) or 7 local overworld_passive_threshold = tonumber(minetest.settings:get("mcl_mobs_overworld_passive_threshold")) or 7 local get_node = minetest.get_node local get_node_light = minetest.get_node_light local find_nodes_in_area_under_air = minetest.find_nodes_in_area_under_air local mt_get_biome_name = minetest.get_biome_name local get_objects_inside_radius = minetest.get_objects_inside_radius local get_connected_players = minetest.get_connected_players local registered_nodes = minetest.registered_nodes local math_min = math.min local math_max = math.max local math_random = math.random local math_floor = math.floor local math_ceil = math.ceil local math_cos = math.cos local math_sin = math.sin local math_sqrt = math.sqrt local math_abs = math.abs local vector_distance = vector.distance local vector_new = vector.new local vector_floor = vector.floor local table_copy = table.copy local table_remove = table.remove local pairs = pairs local logging = minetest.settings:get_bool("mcl_logging_mobs_spawn", false) local function mcl_log(message, property) if property then message = message .. ": " .. dump(property) end mcl_util.mcl_log(message, "[Mobs spawn]", true) end if not logging then mcl_log = function() end end local dbg_spawn_attempts = 0 local dbg_spawn_succ = 0 local remove_far = true local WAIT_FOR_SPAWN_ATTEMPT = 10 local FIND_SPAWN_POS_RETRIES = 16 local FIND_SPAWN_POS_RETRIES_SUCCESS_RESPIN = 8 local MOB_SPAWN_ZONE_INNER = 24 local MOB_SPAWN_ZONE_INNER_SQ = MOB_SPAWN_ZONE_INNER^2 -- squared local MOB_SPAWN_ZONE_MIDDLE = 32 local MOB_SPAWN_ZONE_OUTER = 128 local MOB_SPAWN_ZONE_OUTER_SQ = MOB_SPAWN_ZONE_OUTER^2 -- squared -- range for mob count local MOB_CAP_INNER_RADIUS = 32 local aoc_range = 136 local MISSING_CAP_DEFAULT = 15 local MOBS_CAP_CLOSE = 10 local SPAWN_MAPGEN_LIMIT = mcl_vars.mapgen_limit - 150 local mob_cap = { hostile = tonumber(minetest.settings:get("mcl_mob_cap_monster")) or 70, passive = tonumber(minetest.settings:get("mcl_mob_cap_animal")) or 10, ambient = tonumber(minetest.settings:get("mcl_mob_cap_ambient")) or 15, water = tonumber(minetest.settings:get("mcl_mob_cap_water")) or 8, water_ambient = tonumber(minetest.settings:get("mcl_mob_cap_water_ambient")) or 20, water_underground = tonumber(minetest.settings:get("mcl_mob_cap_water_underground")) or 5, axolotl = tonumber(minetest.settings:get("mcl_mob_cap_axolotl")) or 2, -- TODO should be 5 when lush caves added player = tonumber(minetest.settings:get("mcl_mob_cap_player")) or 75, global_hostile = tonumber(minetest.settings:get("mcl_mob_cap_hostile")) or 300, global_non_hostile = tonumber(minetest.settings:get("mcl_mob_cap_non_hostile")) or 300, total = tonumber(minetest.settings:get("mcl_mob_cap_total")) or 500, } local peaceful_percentage_spawned = tonumber(minetest.settings:get("mcl_mob_peaceful_percentage_spawned")) or 30 local peaceful_group_percentage_spawned = tonumber(minetest.settings:get("mcl_mob_peaceful_group_percentage_spawned")) or 15 local hostile_group_percentage_spawned = tonumber(minetest.settings:get("mcl_mob_hostile_group_percentage_spawned")) or 20 mcl_log("Mob cap hostile: " .. mob_cap.hostile) mcl_log("Mob cap water: " .. mob_cap.water) mcl_log("Mob cap passive: " .. mob_cap.passive) mcl_log("Percentage of peacefuls spawned: " .. peaceful_percentage_spawned) mcl_log("Percentage of peaceful spawns are group: " .. peaceful_group_percentage_spawned) mcl_log("Percentage of hostile spawns are group: " .. hostile_group_percentage_spawned) --do mobs spawn? local mobs_spawn = minetest.settings:get_bool("mobs_spawn", true) ~= false local spawn_protected = minetest.settings:get_bool("mobs_spawn_protected") ~= false -- count how many mobs are in an area local function count_mobs(pos,r,mob_type) local num = 0 for _,l in pairs(minetest.luaentities) do if l and l.is_mob and (mob_type == nil or l.type == mob_type) then local p = l.object:get_pos() if p and vector_distance(p,pos) < r then num = num + 1 end end end return num end local function count_mobs_total(mob_type) local num = 0 for _,l in pairs(minetest.luaentities) do if l.is_mob then if mob_type == nil or l.type == mob_type then num = num + 1 end end end return num end local function count_mobs_add_entry (mobs_list, mob_cat) mobs_list[mob_cat] = (mobs_list[mob_cat] or 0) + 1 end --categorise_by can be name or type or spawn_class local function count_mobs_all(categorise_by, pos) local mobs_found_wide = {} local mobs_found_close = {} local num = 0 for _,entity in pairs(minetest.luaentities) do if entity and entity.is_mob then local add_entry = false --local mob_type = entity.type -- animal / monster / npc local mob_cat = entity[categorise_by] if pos then local mob_pos = entity.object:get_pos() if mob_pos then local distance = vector.distance(pos, mob_pos) --mcl_log("distance: ".. distance) if distance <= MOB_SPAWN_ZONE_MIDDLE then --mcl_log("distance is close") count_mobs_add_entry (mobs_found_close, mob_cat) count_mobs_add_entry (mobs_found_wide, mob_cat) add_entry = true elseif distance <= MOB_SPAWN_ZONE_OUTER then --mcl_log("distance is wide") count_mobs_add_entry (mobs_found_wide, mob_cat) add_entry = true else --mcl_log("mob_pos: " .. minetest.pos_to_string(mob_pos)) end end else count_mobs_add_entry (mobs_found_wide, mob_cat) add_entry = true end if add_entry then num = num + 1 end end end --mcl_log("num: ".. num) return mobs_found_close, mobs_found_wide, num end local function count_mobs_total_cap(mob_type) local total = 0 local num = 0 local hostile = 0 local non_hostile = 0 for _,l in pairs(minetest.luaentities) do if l.is_mob then total = total + 1 local nametagged = l.nametag and l.nametag ~= "" if ( mob_type == nil or l.type == mob_type ) and not nametagged then if l.spawn_class == "hostile" then hostile = hostile + 1 else non_hostile = non_hostile + 1 end num = num + 1 else mcl_log("l.name", l.name) mcl_log("l.nametag", l.nametag) end end end mcl_log("Total mobs", total) mcl_log("hostile", hostile) mcl_log("non_hostile", non_hostile) return num, non_hostile, hostile end local function output_mob_stats(mob_counts, total_mobs, chat_display) if (total_mobs) then local total_output = "Total mobs found: " .. total_mobs if chat_display then minetest.log(total_output) else minetest.log("action", total_output) end end local detailed = "" if mob_counts then for k, v1 in pairs(mob_counts) do detailed = detailed .. tostring(k) .. ": " .. tostring(v1) .. "; " end end if detailed and detailed ~= "" then if chat_display then minetest.log(detailed) else minetest.log("action", detailed) end end end -- global functions function mcl_mobs:spawn_abm_check(pos, node, name) -- global function to add additional spawn checks -- return true to stop spawning mob end --[[ Custom elements changed: name: the mobs name dimension: "overworld" "nether" "end" types of spawning: "water" "ground" "lava" biomes: tells the spawner to allow certain mobs to spawn in certain biomes {"this", "that", "grasslands", "whatever"} what is aoc??? objects in area WARNING: BIOME INTEGRATION NEEDED -> How to get biome through lua?? ]]-- --this is where all of the spawning information is kept local spawn_dictionary = {} --this is where all of the spawning information is kept for mobs that don't naturally spawn local non_spawn_dictionary = {} function mcl_mobs:spawn_setup(def) if not mobs_spawn then return end if not def then minetest.log("warning", "Empty mob spawn setup definition") return end local name = def.name if not name then minetest.log("warning", "Missing mob name") return end local dimension = def.dimension or "overworld" local type_of_spawning = def.type_of_spawning or "ground" local biomes = def.biomes or nil local min_light = def.min_light or 0 local max_light = def.max_light or (minetest.LIGHT_MAX + 1) local chance = def.chance or 1000 local aoc = def.aoc or aoc_range local min_height = def.min_height or mcl_mapgen.overworld.min local max_height = def.max_height or mcl_mapgen.overworld.max local day_toggle = def.day_toggle local on_spawn = def.on_spawn local check_position = def.check_position -- 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("[mcl_mobs] %s has spawning disabled", name)) return end minetest.log("action", string.format("[mcl_mobs] Chance setting for %s changed to %s (total: %s)", name, chance, aoc)) end if chance < 1 then chance = 1 minetest.log("warning", "Chance shouldn't be less than 1 (mob name: " .. name ..")") end spawn_dictionary[#spawn_dictionary + 1] = { name = name, dimension = dimension, type_of_spawning = type_of_spawning, biomes = biomes, min_light = min_light, max_light = max_light, chance = chance, aoc = aoc, min_height = min_height, max_height = max_height, day_toggle = day_toggle, check_position = check_position, on_spawn = on_spawn, } end function mcl_mobs:mob_light_lvl(mob_name, dimension) local spawn_dictionary_consolidated = {} if non_spawn_dictionary[mob_name] then local mob_dimension = non_spawn_dictionary[mob_name][dimension] if mob_dimension then --minetest.log("Found in non spawn dictionary for dimension") return mob_dimension.min_light, mob_dimension.max_light else --minetest.log("Found in non spawn dictionary but not for dimension") local overworld_non_spawn_def = non_spawn_dictionary[mob_name]["overworld"] if overworld_non_spawn_def then return overworld_non_spawn_def.min_light, overworld_non_spawn_def.max_light end end else --minetest.log("must be in spawning dictionary") for i,v in pairs(spawn_dictionary) do local current_mob_name = spawn_dictionary[i].name local current_mob_dim = spawn_dictionary[i].dimension if mob_name == current_mob_name then if not spawn_dictionary_consolidated[current_mob_name] then spawn_dictionary_consolidated[current_mob_name] = {} end spawn_dictionary_consolidated[current_mob_name][current_mob_dim] = { ["min_light"] = spawn_dictionary[i].min_light, ["max_light"] = spawn_dictionary[i].max_light } end end if spawn_dictionary_consolidated[mob_name] then --minetest.log("is in consolidated") local mob_dimension = spawn_dictionary_consolidated[mob_name][dimension] if mob_dimension then --minetest.log("found for dimension") return mob_dimension.min_light, mob_dimension.max_light else --minetest.log("not found for dimension, use overworld def") local mob_dimension_default = spawn_dictionary_consolidated[mob_name]["overworld"] if mob_dimension_default then return mob_dimension_default.min_light, mob_dimension_default.max_light end end else --minetest.log("not in consolidated") end end minetest.log("action", "There are no light levels for mob (" .. tostring(mob_name) .. ") in dimension (" .. tostring(dimension) .. "). Return defaults") return 0, minetest.LIGHT_MAX+1 end function mcl_mobs:non_spawn_specific(mob_name,dimension,min_light,max_light) table.insert(non_spawn_dictionary, mob_name) non_spawn_dictionary[mob_name] = { [dimension] = { min_light = min_light , max_light = max_light } } end function mcl_mobs:spawn_specific(name, dimension, type_of_spawning, biomes, min_light, max_light, interval, chance, aoc, min_height, max_height, day_toggle, on_spawn, check_position) -- Do mobs spawn at all? if not mobs_spawn then return end assert(min_height) assert(max_height) -- 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("[mcl_mobs] %s has spawning disabled", name)) return end minetest.log("action", string.format("[mcl_mobs] Chance setting for %s changed to %s (total: %s)", name, chance, aoc)) end --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]["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 spawn_dictionary[key]["check_position"] = check_position end local function get_next_mob_spawn_pos(pos) -- Select a distance such that distances closer to the player are selected much more often than -- those further away from the player. This does produce a concentration at INNER (24 blocks) local distance = math_random()^2 * (MOB_SPAWN_ZONE_OUTER - MOB_SPAWN_ZONE_INNER) + MOB_SPAWN_ZONE_INNER --print("Using spawn distance of "..tostring(distance).." fx="..tostring(fx)..",x="..tostring(x)) -- Choose a random direction. Rejection sampling is simple and fast (1-2 tries usually) local xoff, yoff, zoff, dd repeat xoff, yoff, zoff = math_random() * 2 - 1, math_random() * 2 - 1, math_random() * 2 - 1 dd = xoff*xoff + yoff*yoff + zoff*zoff until (dd <= 1 and dd >= 1e-6) -- outside of uniform ball, retry dd = distance / math_sqrt(dd) -- distance scaling factor xoff, yoff, zoff = xoff * dd, yoff * dd, zoff * dd local goal_pos = vector.offset(pos, xoff, yoff, zoff) if not (math_abs(goal_pos.x) <= SPAWN_MAPGEN_LIMIT and math_abs(goal_pos.y) <= SPAWN_MAPGEN_LIMIT and math_abs(goal_pos.z) <= SPAWN_MAPGEN_LIMIT) then mcl_log("Pos outside mapgen limits: " .. minetest.pos_to_string(goal_pos)) return nil end -- Calculate upper/lower y limits local d2 = xoff*xoff + zoff*zoff -- squared distance in x,z plane only local y1 = math_sqrt(MOB_SPAWN_ZONE_OUTER_SQ - d2) -- absolue value of distance to outer sphere local y_min, y_max if d2 >= MOB_SPAWN_ZONE_INNER_SQ then -- Outer region, y range has both ends on the outer sphere y_min = pos.y - y1 y_max = pos.y + y1 else -- Inner region, y range spans between inner and outer spheres local y2 = math_sqrt(MOB_SPAWN_ZONE_INNER_SQ - d2) if goal_pos.y > pos.y then -- Upper hemisphere y_min = pos.y + y2 y_max = pos.y + y1 else -- Lower hemisphere y_min = pos.y - y1 y_max = pos.y - y2 end end -- Limit total range of check to 32 nodes (maximum of 3 map blocks) y_min = math_max(math_floor(y_min), goal_pos.y - 16) y_max = math_min(math_ceil(y_max), goal_pos.y + 16) -- Ask engine for valid spawn locations local spawning_position_list = find_nodes_in_area_under_air( {x = goal_pos.x, y = y_min, z = goal_pos.z}, {x = goal_pos.x, y = y_max, z = goal_pos.z}, {"group:solid", "group:water", "group:lava"} ) or {} -- Select only the locations at a valid distance local valid_positions = {} for _,check_pos in ipairs(spawning_position_list) do local dist = vector.distance(pos, check_pos) if dist >= MOB_SPAWN_ZONE_INNER and dist <= MOB_SPAWN_ZONE_OUTER then valid_positions[#valid_positions + 1] = check_pos end end spawning_position_list = valid_positions -- No valid locations, failed to find a position if #spawning_position_list == 0 then mcl_log("Spawning position isn't good. Do not spawn: " .. minetest.pos_to_string(goal_pos)) return nil end -- Pick a random valid location mcl_log("Spawning positions available: " .. minetest.pos_to_string(goal_pos)) return spawning_position_list[math_random(1, #spawning_position_list)] end --a simple helper function for mob_spawn local function biome_check(biome_list, biome_goal) if not biome_goal then return false end for _, data in pairs(biome_list) do if data == biome_goal then return true end end return false end local function is_farm_animal(n) return n == "mobs_mc:pig" or n == "mobs_mc:cow" or n == "mobs_mc:sheep" or n == "mobs_mc:chicken" or n == "mobs_mc:horse" or n == "mobs_mc:donkey" end local function get_water_spawn(p) local nn = minetest.find_nodes_in_area(vector.offset(p,-2,-1,-2),vector.offset(p,2,-15,2),{"group:water"}) if nn and #nn > 0 then return nn[math.random(#nn)] end end local function has_room(self, pos) local cb = self.spawnbox or self.collisionbox local nodes = {} if self.fly_in then local t = type(self.fly_in) if t == "table" then nodes = table.copy(self.fly_in) elseif t == "string" then table.insert(nodes,self.fly_in) end end table.insert(nodes,"air") -- Calculate area to check for room local cb_height = cb[5] - cb[2] local p1 = vector.new( math.round(pos.x + cb[1]), math.floor(pos.y), math.round(pos.z + cb[3])) local p2 = vector.new( math.round(pos.x + cb[4]), math.ceil(p1.y + cb_height) - 1, math.round(pos.z + cb[6])) -- Check if the entire spawn volume is free local dx = p2.x - p1.x + 1 local dy = p2.y - p1.y + 1 local dz = p2.z - p1.z + 1 local found_nodes = minetest.find_nodes_in_area(p1,p2,nodes) or 0 local n = #found_nodes if n == dx * dy * dz then return true end -- If we don't have an implementation of get_node_boxes, we can't check for sub-node space if not minetest.get_node_boxes then return false end -- Check if it's possible for a sub-node space check to succeed local needed_in_bottom_section = dx * ( dy - 1) * dz if n < needed_in_bottom_section then return false end -- Make sure the entire volume except for the top level is free before checking the top layer if dy > 1 then -- Remove nodes in the top layer from the count for i = 1,#found_nodes do if found_nodes[i].y == p2.y then n = n - 1 end end -- If the entire volume except the top layer isn't air (or nodes) then we can't spawn this mob here if n < needed_in_bottom_section then return false end end -- Check the top layer to see if we have enough space to spawn in local top_layer_height = 1 local processed = {} for x = p1.x,p2.x do for z = p1.z,p2.z do local test_pos = vector.new(x,p2.y,z) local node = minetest.get_node(test_pos) or { name = "ignore" } local cache_name = string.format("%s-%d", node.name, node.param2) if not processed[cache_name] then -- Calculate node bounding box and select the lowest y value local boxes = minetest.get_node_boxes("collision_box", test_pos, node) for i = 1,#boxes do local box = boxes[i] local y_test = box[2] + 0.5 if y_test < top_layer_height then top_layer_height = y_test end local y_test = box[5] + 0.5 if y_test < top_layer_height then top_layer_height = y_test end end end end end if top_layer_height + dy - 1 >= cb_height then return true end -- We don't have room return false end mcl_mobs.custom_biomecheck = nil function mcl_mobs.register_custom_biomecheck(custom_biomecheck) mcl_mobs.custom_biomecheck = custom_biomecheck end local function get_biome_name(pos) if mcl_mobs.custom_biomecheck then return mcl_mobs.custom_biomecheck(pos) end local gotten_biome = minetest.get_biome_data(pos) return gotten_biome and mt_get_biome_name(gotten_biome.biome) end local function spawn_check(pos, spawn_def) if not spawn_def or not pos then return end dbg_spawn_attempts = dbg_spawn_attempts + 1 local dimension = mcl_worlds.pos_to_dimension(pos) if spawn_def.dimension ~= dimension then return end -- wrong dimension -- find ground node below spawn position local node_name = get_node(pos).name local node_def = registered_nodes[node_name] if node_def and not node_def.groups.solid then -- try node one below instead pos.y = pos.y - 1 node_name = get_node(pos).name node_def = registered_nodes[node_name] end if not node_def or not node_def.groups then return end -- do not spawn on bedrock if node_name == "mcl_core:bedrock" then return end pos.y = pos.y + 1 -- check spawn height if pos.y < spawn_def.min_height or pos.y > spawn_def.max_height then return end mcl_log("spawn_check#1 position checks passed") -- do not spawn ground mobs on leaves if spawn_def.type_of_spawning == "ground" and (not node_def.groups.solid or node_def.groups.leaves) then return end -- water mobs only on water if spawn_def.type_of_spawning == "water" and not node_def.groups.water then return end -- lava mobs only on lava if spawn_def.type_of_spawning == "lava" and not node_def.groups.lava then return end -- farm animals on grass only if is_farm_animal(spawn_def.name) and not node_def.groups.grass_block then return end ---- More expensive calls: -- check the biome if spawn_def.biomes and not biome_check(spawn_def.biomes, get_biome_name(pos)) then return end -- check if there is enough room local mob_def = minetest.registered_entities[spawn_def.name] if not has_room(mob_def,pos) then return end -- additional checks (slime etc.) if spawn_def.check_position and not spawn_def.check_position(pos) then return end if spawn_protected and minetest.is_protected(pos, "") then return end mcl_log("spawn_check#2 advanced checks passed") -- check light thresholds local gotten_light = get_node_light(pos) -- old lighting if not modern_lighting then return gotten_light >= spawn_def.min_light and gotten_light <= spawn_def.max_light end local sky_light = minetest.get_natural_light(pos) local art_light = minetest.get_artificial_light(get_node(pos).param1) if mob_def.spawn_check then return mob_def.spawn_check(pos, gotten_light, art_light, sky_light) end if mob_def.type == "monster" then if dimension == "nether" then if art_light <= nether_threshold then return true end elseif dimension == "end" then if art_light <= end_threshold then return true end elseif dimension == "overworld" then if art_light <= overworld_threshold and sky_light <= overworld_sky_threshold then return true end end return false end -- passive threshold is apparently the same in all dimensions ... return gotten_light > overworld_passive_threshold end function mcl_mobs.spawn(pos,id) if not pos or not id then return false end local def = minetest.registered_entities[id] or minetest.registered_entities["mobs_mc:"..id] or minetest.registered_entities["extra_mobs:"..id] if not def or not def.is_mob or (def.can_spawn and not def.can_spawn(pos)) then return false end if not has_room(def, pos) then return false end local ent = minetest.add_entity(pos, def.name) -- initialize head bone if def.head_swivel and def.head_bone_position then if ent and ent.get_bone_override then -- minetest >= 5.9 ent:set_bone_override(def.head_swivel, { position = { vec = def.head_bone_position, absolute = true }, rotation = { vec = vector.zero(), absolute = true } }) else -- minetest < 5.9 self.object:set_bone_position(def.head_swivel, def.head_bone_position, vector.zero) end end return ent end local function spawn_group(p,mob,spawn_on,amount_to_spawn) local nn= minetest.find_nodes_in_area_under_air(vector.offset(p,-5,-3,-5),vector.offset(p,5,3,5),spawn_on) local o table.shuffle(nn) if not nn or #nn < 1 then nn = {} table.insert(nn,p) end for i = 1, amount_to_spawn do local sp = vector.offset(nn[math.random(#nn)],0,1,0) if spawn_check(nn[math.random(#nn)],mob) then if mob.type_of_spawning == "water" then sp = get_water_spawn(sp) end o = mcl_mobs.spawn(sp,mob.name) if o then dbg_spawn_succ = dbg_spawn_succ + 1 end end end return o end mcl_mobs.spawn_group = spawn_group local S = minetest.get_translator("mcl_mobs") minetest.register_chatcommand("spawn_mob",{ privs = { debug = true }, description=S("spawn_mob is a chatcommand that allows you to type in the name of a mob without 'typing mobs_mc:' all the time like so; 'spawn_mob spider'. however, there is more you can do with this special command, currently you can edit any number, boolean, and string variable you choose with this format: spawn_mob 'any_mob:var:'. any_mob being your mob of choice, mobs_variable being the variable, and variable value being the value of the chosen variable. and example of this format: \n spawn_mob skeleton:var:\n this would spawn a skeleton that wouldn't attack you. REMEMBER-THIS> when changing a number value always prefix it with 'NUM', example: \n spawn_mob skeleton:var:\n this setting the skelly's jump height to 10. if you want to make multiple changes to a mob, you can, example: \n spawn_mob skeleton:var::var::var::var:\n etc."), func = function(n,param) local pos = minetest.get_player_by_name(n):get_pos() local modifiers = {} for capture in string.gmatch(param, "%:(.-)%:") do table.insert(modifiers, ":"..capture) end local mod1 = string.find(param, ":") local mobname = param if mod1 then mobname = string.sub(param, 1, mod1-1) end local mob = mcl_mobs.spawn(pos,mobname) if mob then for c=1, #modifiers do modifs = modifiers[c] local mod1 = string.find(modifs, ":") local mod_start = string.find(modifs, "<") local mod_vals = string.find(modifs, "=") local mod_end = string.find(modifs, ">") local mob_entity = mob:get_luaentity() if string.sub(modifs, mod1+1, mod1+3) == "var" then if mod1 and mod_start and mod_vals and mod_end then local variable = string.sub(modifs, mod_start+1, mod_vals-1) local value = string.sub(modifs, mod_vals+1, mod_end-1) number_tag = string.find(value, "NUM") if number_tag then value = tonumber(string.sub(value, 4, -1)) end if value == "true" then value = true elseif value == "false" then value = false end if not mob_entity[variable] then minetest.log("warning", n.." mob variable "..variable.." previously unset") end mob_entity[variable] = value else minetest.log("warning", n.." couldn't modify "..mobname.." at "..minetest.pos_to_string(pos).. ", missing paramaters") end else minetest.log("warning", n.." couldn't modify "..mobname.." at "..minetest.pos_to_string(pos).. ", missing modification type") end end minetest.log("action", n.." spawned "..mobname.." at "..minetest.pos_to_string(pos)) return true, mobname.." spawned at "..minetest.pos_to_string(pos) else return false, "Couldn't spawn "..mobname end end }) if mobs_spawn then -- Get pos to spawn, x and z are randomised, y is range local function mob_cap_space (pos, mob_type, mob_counts_close, mob_counts_wide, cap_space_hostile, cap_space_non_hostile) -- Some mob examples --type = "monster", spawn_class = "hostile", --type = "animal", spawn_class = "passive", --local cod = { type = "animal", spawn_class = "water", local type_cap = mob_cap[mob_type] or MISSING_CAP_DEFAULT local close_zone_cap = MOBS_CAP_CLOSE local mob_total_wide = mob_counts_wide[mob_type] if not mob_total_wide then --mcl_log("none of type found. set as 0") mob_total_wide = 0 end local cap_space_wide = math_max(type_cap - mob_total_wide, 0) mcl_log("mob_type", mob_type) mcl_log("cap_space_wide", cap_space_wide) local cap_space_available = 0 if mob_type == "hostile" then mcl_log("cap_space_global", cap_space_hostile) cap_space_available = math_min(cap_space_hostile, cap_space_wide) else mcl_log("cap_space_global", cap_space_non_hostile) cap_space_available = math_min(cap_space_non_hostile, cap_space_wide) end local mob_total_close = mob_counts_close[mob_type] if not mob_total_close then --mcl_log("none of type found. set as 0") mob_total_close = 0 end local cap_space_close = math_max(close_zone_cap - mob_total_close, 0) cap_space_available = math_min(cap_space_available, cap_space_close) mcl_log("cap_space_close", cap_space_close) mcl_log("cap_space_available", cap_space_available) if false and mob_type == "water" then mcl_log("mob_type: " .. mob_type .. " and pos: " .. minetest.pos_to_string(pos)) mcl_log("wide: " .. mob_total_wide .. "/" .. type_cap) mcl_log("cap_space_wide: " .. cap_space_wide) mcl_log("close: " .. mob_total_close .. "/" .. close_zone_cap) mcl_log("cap_space_close: " .. cap_space_close) end return cap_space_available end local function find_spawning_position(pos, max_times) local spawning_position local max_loops = max_times or 1 --mcl_log("mapgen_limit: " .. SPAWN_MAPGEN_LIMIT) while max_loops > 0 do local spawning_position = get_next_mob_spawn_pos(pos) if spawning_position then return spawning_position end max_loops = max_loops - 1 end return nil end local cumulative_chance = nil local mob_library_worker_table = nil local function initialize_spawn_data() if not mob_library_worker_table then mob_library_worker_table = table_copy(spawn_dictionary) end if not cumulative_chance then cumulative_chance = 0 for k, v in pairs(mob_library_worker_table) do cumulative_chance = cumulative_chance + v.chance end end end local function spawn_a_mob(pos, cap_space_hostile, cap_space_non_hostile) local spawning_position = find_spawning_position(pos, FIND_SPAWN_POS_RETRIES) if not spawning_position then minetest.log("action", "[Mobs spawn] Cannot find a valid spawn position after retries: " .. FIND_SPAWN_POS_RETRIES) return end local mob_counts_close, mob_counts_wide, total_mobs = count_mobs_all("spawn_class", spawning_position) --output_mob_stats(mob_counts_close, total_mobs) --output_mob_stats(mob_counts_wide) --grab mob that fits into the spawning location --use random weighted choice with replacement to grab a mob, don't exclude any possibilities --shuffle table once every loop to provide equal inclusion probability to all mobs --repeat grabbing a mob to maintain existing spawn rates local spawn_loop_counter = #mob_library_worker_table while spawn_loop_counter > 0 do table.shuffle(mob_library_worker_table) local mob_chance_offset = math_random(1, cumulative_chance) local mob_index = 1 local mob_chance = mob_library_worker_table[mob_index].chance local step_chance = mob_chance while step_chance < mob_chance_offset do mob_index = mob_index + 1 if mob_index <= #mob_library_worker_table then mob_chance = mob_library_worker_table[mob_index].chance step_chance = step_chance + mob_chance else break end end --minetest.log(mob_def.name.." "..step_chance.. " "..mob_chance) local mob_def = mob_library_worker_table[mob_index] if mob_def and mob_def.name and minetest.registered_entities[mob_def.name] then local mob_def_ent = minetest.registered_entities[mob_def.name] local mob_spawn_class = mob_def_ent.spawn_class local cap_space_available = mob_cap_space (spawning_position, mob_spawn_class, mob_counts_close, mob_counts_wide, cap_space_hostile, cap_space_non_hostile) if cap_space_available > 0 then --mcl_log("Cap space available") -- Spawn caps for animals and water creatures fill up rapidly. Need to throttle this somewhat -- for performance and for early game challenge. We don't want to reduce hostiles though. local spawn_hostile = (mob_spawn_class == "hostile") local spawn_passive = (mob_spawn_class ~= "hostile") and math.random(100) < peaceful_percentage_spawned --mcl_log("Spawn_passive: " .. tostring(spawn_passive)) --mcl_log("Spawn_hostile: " .. tostring(spawn_hostile)) if (spawn_hostile or spawn_passive) and spawn_check(spawning_position,mob_def) then if mob_def.type_of_spawning == "water" then spawning_position = get_water_spawn(spawning_position) if not spawning_position then minetest.log("warning","[mcl_mobs] no water spawn for mob "..mob_def.name.." found at "..minetest.pos_to_string(vector.round(pos))) return end end if mob_def_ent.can_spawn and not mob_def_ent.can_spawn(spawning_position) then minetest.log("warning","[mcl_mobs] mob "..mob_def.name.." refused to spawn at "..minetest.pos_to_string(vector.round(spawning_position))) return end --everything is correct, spawn mob local spawn_in_group = mob_def_ent.spawn_in_group or 4 local spawn_group_hostile = (mob_spawn_class == "hostile") and (math.random(100) < hostile_group_percentage_spawned) local spawn_group_passive = (mob_spawn_class ~= "hostile") and (math.random(100) < peaceful_group_percentage_spawned) mcl_log("spawn_group_hostile: " .. tostring(spawn_group_hostile)) mcl_log("spawn_group_passive: " .. tostring(spawn_group_passive)) local spawned if spawn_in_group and (spawn_group_hostile or spawn_group_passive) then local group_min = mob_def_ent.spawn_in_group_min or 1 if not group_min then group_min = 1 end local amount_to_spawn = math.random(group_min, spawn_in_group) mcl_log("Spawning quantity: " .. amount_to_spawn) amount_to_spawn = math_min(amount_to_spawn, cap_space_available) mcl_log("throttled spawning quantity: " .. amount_to_spawn) if logging then minetest.log("action", "[mcl_mobs] A group of " ..amount_to_spawn .. " " .. mob_def.name .. " mob spawns on " ..minetest.get_node(vector.offset(spawning_position,0,-1,0)).name .." at " .. minetest.pos_to_string(spawning_position, 1)) end spawned = spawn_group(spawning_position,mob_def,{minetest.get_node(vector.offset(spawning_position,0,-1,0)).name}, amount_to_spawn) else if logging then minetest.log("action", "[mcl_mobs] Mob " .. mob_def.name .. " spawns on " ..minetest.get_node(vector.offset(spawning_position,0,-1,0)).name .." at ".. minetest.pos_to_string(spawning_position, 1)) end spawned = mcl_mobs.spawn(spawning_position, mob_def.name) end if spawned then --mcl_log("We have spawned") mob_counts_close, mob_counts_wide, total_mobs = count_mobs_all("spawn_class", pos) local new_spawning_position = find_spawning_position(pos, FIND_SPAWN_POS_RETRIES_SUCCESS_RESPIN) if new_spawning_position then mcl_log("Setting new spawning position") spawning_position = new_spawning_position else mcl_log("Cannot set new spawning position") end end else --mcl_log("Spawn check failed") end else --mcl_log("Cap space full") end end spawn_loop_counter = spawn_loop_counter - 1 end end --MAIN LOOP local timer = 0 minetest.register_globalstep(function(dtime) timer = timer + dtime if timer < WAIT_FOR_SPAWN_ATTEMPT then return end initialize_spawn_data() timer = 0 local players = get_connected_players() local total_mobs, total_non_hostile, total_hostile = count_mobs_total_cap() local cap_space_hostile = math_max(mob_cap.global_hostile - total_hostile, 0) local cap_space_non_hostile = math_max(mob_cap.global_non_hostile - total_non_hostile, 0) mcl_log("global cap_space_hostile", cap_space_hostile) mcl_log("global cap_space_non_hostile", cap_space_non_hostile) if total_mobs > mob_cap.total or total_mobs > #players * mob_cap.player then minetest.log("action","[mcl_mobs] global mob cap reached. no cycle spawning.") return end --mob cap per player for _, player in pairs(players) do local pos = player:get_pos() local dimension = mcl_worlds.pos_to_dimension(pos) -- ignore void and unloaded area if dimension ~= "void" and dimension ~= "default" then spawn_a_mob(pos, cap_space_hostile, cap_space_non_hostile) end end end) end local function despawn_allowed(self) local nametag = self.nametag and self.nametag ~= "" local not_busy = self.state ~= "attack" and self.following == nil if self.can_despawn == true then if not nametag and not_busy and not self.tamed == true and not self.persistent == true then return true end end return false end function mob_class:despawn_allowed() despawn_allowed(self) end assert(despawn_allowed({can_despawn=false}) == false, "despawn_allowed - can_despawn false failed") assert(despawn_allowed({can_despawn=true}) == true, "despawn_allowed - can_despawn true failed") assert(despawn_allowed({can_despawn=true, nametag=""}) == true, "despawn_allowed - blank nametag failed") assert(despawn_allowed({can_despawn=true, nametag=nil}) == true, "despawn_allowed - nil nametag failed") assert(despawn_allowed({can_despawn=true, nametag="bob"}) == false, "despawn_allowed - nametag failed") assert(despawn_allowed({can_despawn=true, state="attack"}) == false, "despawn_allowed - attack state failed") assert(despawn_allowed({can_despawn=true, following="blah"}) == false, "despawn_allowed - following state failed") assert(despawn_allowed({can_despawn=true, tamed=false}) == true, "despawn_allowed - not tamed") assert(despawn_allowed({can_despawn=true, tamed=true}) == false, "despawn_allowed - tamed") assert(despawn_allowed({can_despawn=true, persistent=true}) == false, "despawn_allowed - persistent") assert(despawn_allowed({can_despawn=true, persistent=false}) == true, "despawn_allowed - not persistent") function mob_class:check_despawn(pos, dtime) self.lifetimer = self.lifetimer - dtime -- Despawning: when lifetimer expires, remove mob if remove_far and despawn_allowed(self) then if self.despawn_immediately or self.lifetimer <= 0 then if logging then minetest.log("action", "[mcl_mobs] Mob "..self.name.." despawns at "..minetest.pos_to_string(pos, 1) .. " lifetimer ran out") end mcl_burning.extinguish(self.object) self.object:remove() return true elseif self.lifetimer <= 10 then if math.random(10) < 4 then self.despawn_immediately = true else self.lifetimer = 20 end end end end minetest.register_chatcommand("mobstats",{ privs = { debug = true }, func = function(n,param) local pos = minetest.get_player_by_name(n):get_pos() minetest.chat_send_player(n,"mobs: within 32 radius of player/total loaded :"..count_mobs(pos,MOB_CAP_INNER_RADIUS) .. "/" .. count_mobs_total()) minetest.chat_send_player(n,"spawning attempts since server start:" .. dbg_spawn_succ .. "/" .. dbg_spawn_attempts) local mob_counts_close, mob_counts_wide, total_mobs = count_mobs_all("name") -- Can use "type" output_mob_stats(mob_counts_wide, total_mobs, true) end })