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advanced_npc/spawner.lua

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-- Advanced NPC spawner by Zorman2000
-- The advanced spawner will contain functionality to spawn NPC correctly on
-- mg_villages building. The spawn node will be the mg_villages:plotmarker.
-- This node will be replaced with one that will perform the following functions:
--
-- - Scan the current building, check if it is of type:
-- - House
-- - Farm
-- - Hut
-- - NOTE: All other types are unsupported as-of now
-- - If it's from any of the above types, the spawner will proceed to scan the
-- the building and find out:
-- - Number and positions of beds
-- - Number and positions of benches
-- - Number and positions of chests
-- - Position of furnaces
-- - Position of doors
-- - NOTE: Scanning will be implemented for first floors only in the first
-- version. It's expected to also include upper floors later.
-- - After that, it will store these information in the node's metadata.
-- - The spawner will analyze the information and will spawn (# of beds/2) or 1
-- NPC in that house. The NPCs will be spawned in intervals, for which the node
-- will create node timers for each NPC.
-- - When a NPC is spawned:
-- - The NPC will be given a schedule
-- - If in a farm, the NPC will have a "farmer schedule" with a 40% chance
-- - If in a house or hut, the NPC will have either a miner, woodcutter, cooker
-- or simple schedule with an equal chance each
-- - The NPC will be assigned a unique bed
-- - The NPC will know the location of one chest, one bench and one furnace
-- - A life timer for the NPC will be created (albeit a long one). Once the NPC's
-- timer is invoked, the NPC will be de-spawned (dies). The spawner should keep
-- track of these.
-- - If a NPC has died, the spawner will choose with 50% chance to spawn a new NPC.
--
-- This is the basic functionality expected for the spawner in version 1. Other things
-- such as scanning upper floors, spawning families of NPCs and creating relationships
-- among them, etc. will be for other versions.
-- Public API
npc.spawner = {}
-- Private API
local spawner = {}
-- This is the official list of support building types
-- from the mg_villages mod
npc.spawner.mg_villages_supported_building_types = {
"house",
"farm_full",
"farm_tiny",
"hut",
"lumberjack"
}
npc.spawner.replace_activated = true
npc.spawner.replacement_interval = 60
npc.spawner.spawn_delay = 10
npc.spawner.spawn_data = {
status = {
dead = 0,
alive = 1
},
age = {
adult = "adult",
child = "child"
}
}
local function get_basic_schedule()
return {
-- Create schedule entries
-- Morning actions: get out of bed, walk to outside of house
-- This will be executed around 8 AM MTG time
morning_actions = {
-- Get out of bed
[1] = {task = npc.actions.cmd.USE_BED, args = {
pos = npc.places.PLACE_TYPE.BED.PRIMARY,
action = npc.actions.const.beds.GET_UP
}
},
-- Walk outside
[2] = {task = npc.actions.cmd.WALK_TO_POS, args = {
end_pos = npc.places.PLACE_TYPE.OTHER.HOME_OUTSIDE,
walkable = {}
}
},
-- Allow mobs_redo wandering
[3] = {action = npc.actions.cmd.FREEZE, args = {freeze = false}}
},
-- Afternoon actions: go inside the house
-- This will be executed around 6 PM MTG time
afternoon_actions = {
-- Get inside home
[1] = {task = npc.actions.cmd.WALK_TO_POS, args = {
end_pos = npc.places.PLACE_TYPE.OTHER.HOME_INSIDE,
walkable = {}}
},
-- Allow mobs_redo wandering
[2] = {action = npc.actions.cmd.FREEZE, args = {freeze = false}}
},
-- Evening actions: walk to bed and use it.
-- This will be executed around 10 PM MTG time
evening_actions = {
[1] = {task = npc.actions.cmd.WALK_TO_POS, args = {
end_pos = {place_type=npc.places.PLACE_TYPE.BED.PRIMARY, use_access_node=true},
walkable = {}
}
},
-- Use bed
[2] = {task = npc.actions.cmd.USE_BED, args = {
pos = npc.places.PLACE_TYPE.BED.PRIMARY,
action = npc.actions.const.beds.LAY
}
},
-- Stay put on bed
[3] = {action = npc.actions.cmd.FREEZE, args = {freeze = true}}
}
}
end
---------------------------------------------------------------------------------------
-- Scanning functions
---------------------------------------------------------------------------------------
function spawner.filter_first_floor_nodes(nodes, ground_pos)
local result = {}
for _,node in pairs(nodes) do
if node.node_pos.y <= ground_pos.y + 2 then
table.insert(result, node)
end
end
return result
end
-- Creates an array of {pos=<node_pos>, owner=''} for managing
-- which NPC owns what
function spawner.get_nodes_by_type(start_pos, end_pos, type)
local result = {}
local nodes = npc.places.find_node_in_area(start_pos, end_pos, type)
--minetest.log("Found "..dump(#nodes).." nodes of type: "..dump(type))
for _,node_pos in pairs(nodes) do
local entry = {}
entry["node_pos"] = node_pos
entry["owner"] = ''
table.insert(result, entry)
end
return result
end
-- Scans an area for the supported nodes: beds, benches,
-- furnaces, storage (e.g. chests) and openable (e.g. doors).
-- Returns a table with these classifications
function spawner.scan_area(pos1, pos2)
local result = {
bed_type = {},
sittable_type = {},
furnace_type = {},
storage_type = {},
openable_type = {}
}
local start_pos, end_pos = vector.sort(pos1, pos2)
result.bed_type = spawner.get_nodes_by_type(start_pos, end_pos, npc.places.nodes.BED_TYPE)
result.sittable_type = spawner.get_nodes_by_type(start_pos, end_pos, npc.places.nodes.SITTABLE_TYPE)
result.furnace_type = spawner.get_nodes_by_type(start_pos, end_pos, npc.places.nodes.FURNACE_TYPE)
result.storage_type = spawner.get_nodes_by_type(start_pos, end_pos, npc.places.nodes.STORAGE_TYPE)
result.openable_type = spawner.get_nodes_by_type(start_pos, end_pos, npc.places.nodes.OPENABLE_TYPE)
--minetest.log("Found nodes inside area: "..dump(result))
return result
end
-- This function will assign places to every NPC that belongs to a specific
-- house/building. It will use the resources of the house and give them
-- until there's no more. Call this function after NPCs are initialized
-- The basic assumption:
-- - Use only items that are up to y+3 (first floor of building) for now
-- - Tell the NPC where the furnaces are
-- - Assign a unique bed to the NPC
-- - If there are as many chests as beds, assign one to a NPC
-- - Else, just let the NPC know one of the chests, but not to be owned
-- - If there are as many benches as beds, assign one to a NPC
-- - Else, just let the NPC know one of the benches, but not own them
-- - Let the NPC know all doors to the house. Identify the front one as the entrance
function spawner.assign_places(self, pos)
local meta = minetest.get_meta(pos)
local entrance = minetest.deserialize(meta:get_string("entrance"))
local node_data = minetest.deserialize(meta:get_string("node_data"))
-- Assign plotmarker
npc.places.add_public(self, npc.places.PLACE_TYPE.OTHER.HOME_PLOTMARKER,
npc.places.PLACE_TYPE.OTHER.HOME_PLOTMARKER, pos)
-- Assign entrance door and related locations
if entrance ~= nil and entrance.node_pos ~= nil then
npc.places.add_public(self, npc.places.PLACE_TYPE.OPENABLE.HOME_ENTRANCE_DOOR, npc.places.PLACE_TYPE.OPENABLE.HOME_ENTRANCE_DOOR, entrance.node_pos)
-- Find the position inside and outside the door
local entrance_inside = npc.places.find_node_behind_door(entrance.node_pos)
local entrance_outside = npc.places.find_node_in_front_of_door(entrance.node_pos)
-- Assign these places to NPC
npc.places.add_public(self, npc.places.PLACE_TYPE.OTHER.HOME_INSIDE, npc.places.PLACE_TYPE.OTHER.HOME_INSIDE, entrance_inside)
npc.places.add_public(self, npc.places.PLACE_TYPE.OTHER.HOME_OUTSIDE, npc.places.PLACE_TYPE.OTHER.HOME_OUTSIDE, entrance_outside)
end
-- Assign beds
if #node_data.bed_type > 0 then
-- Find unowned bed
for i = 1, #node_data.bed_type do
-- Check if bed has owner
--minetest.log("Node: "..dump(node_data.bed_type[i]))
if node_data.bed_type[i].owner == "" then
-- If bed has no owner, check if it is accessible
local empty_nodes = npc.places.find_node_orthogonally(
node_data.bed_type[i].node_pos, {"air"}, 0)
-- Check if bed is accessible
if #empty_nodes > 0 then
-- Set owner to this NPC
node_data.bed_type[i].owner = self.npc_id
-- Assign node to NPC
npc.places.add_owned(self, npc.places.PLACE_TYPE.BED.PRIMARY,
npc.places.PLACE_TYPE.BED.PRIMARY, node_data.bed_type[i].node_pos, empty_nodes[1].pos)
-- Store changes to node_data
meta:set_string("node_data", minetest.serialize(node_data))
npc.log("DEBUG", "Added bed at "..minetest.pos_to_string(node_data.bed_type[i].node_pos)
.." to NPC "..dump(self.npc_name))
break
end
end
end
end
--local plot_info = minetest.deserialize(meta:get_string("plot_info"))
--minetest.log("Plot info:"..dump(plot_info))
npc.log("DEBUG", "Places for NPC "..self.npc_name..": "..dump(self.places_map))
-- Make NPC go into their house
npc.add_task(self,
npc.actions.cmd.WALK_TO_POS,
{end_pos=npc.places.PLACE_TYPE.OTHER.HOME_INSIDE,
walkable={}})
npc.add_action(self, npc.actions.cmd.FREEZE, {freeze = false})
end
function spawner.assign_schedules(self, pos)
-- TODO: In the future, this needs to actually take into account
-- type of building and different schedules, e.g. farmers, traders, etc.
local basic_schedule = get_basic_schedule()
-- Add a simple schedule for testing
npc.create_schedule(self, npc.schedule_types.generic, 0)
-- Add schedule entry for morning actions
npc.add_schedule_entry(self, npc.schedule_types.generic, 0, 8, nil, basic_schedule.morning_actions)
-- Add schedule entry for afternoon actions
npc.add_schedule_entry(self, npc.schedule_types.generic, 0, 18, nil, basic_schedule.afternoon_actions)
-- Add schedule entry for evening actions
npc.add_schedule_entry(self, npc.schedule_types.generic, 0, 22, nil, basic_schedule.evening_actions)
end
-- This function is called when the node timer for spawning NPC
-- is expired
function npc.spawner.spawn_npc(pos)
-- Get timer
local timer = minetest.get_node_timer(pos)
-- Get metadata
local meta = minetest.get_meta(pos)
-- Get current NPC info
local npc_table = minetest.deserialize(meta:get_string("npcs"))
-- Get NPC stats
local npc_stats = minetest.deserialize(meta:get_string("npc_stats"))
-- Check amount of NPCs that should be spawned
local npc_count = meta:get_int("npc_count")
local spawned_npc_count = meta:get_int("spawned_npc_count")
npc.log("INFO", "Currently spawned "..dump(spawned_npc_count).." of "..dump(npc_count).." NPCs")
if spawned_npc_count < npc_count then
npc.log("INFO", "Spawning NPC at "..minetest.pos_to_string(pos))
-- Spawn a NPC
local ent = minetest.add_entity({x=pos.x, y=pos.y+1, z=pos.z}, "advanced_npc:npc")
if ent and ent:get_luaentity() then
ent:get_luaentity().initialized = false
-- Initialize NPC
-- Call with stats if there are NPCs
if #npc_table > 0 then
npc.initialize(ent, pos, false, npc_stats)
else
npc.initialize(ent, pos)
end
-- Assign nodes
spawner.assign_places(ent:get_luaentity(), pos)
-- Assign schedules
spawner.assign_schedules(ent:get_luaentity(), pos)
-- Increase NPC spawned count
spawned_npc_count = spawned_npc_count + 1
-- Store count into node
meta:set_int("spawned_npc_count", spawned_npc_count)
-- Store spawned NPC data and stats into node
local age = npc.age.adult
if ent:get_luaentity().child then
age = npc.age.child
end
-- TODO: Add more information here at some time...
local entry = {
status = npc.spawner.spawn_data.status.alive,
name = ent:get_luaentity().name,
id = ent:get_luaentity().npc_id,
sex = ent:get_luaentity().sex,
age = age,
born_day = minetest.get_day_count()
}
table.insert(npc_table, entry)
meta:set_string("npcs", minetest.serialize(npc_table))
-- Update and store stats
-- Increase total of NPCs for specific sex
npc_stats[ent:get_luaentity().sex].total =
npc_stats[ent:get_luaentity().sex].total + 1
-- Increase total number of NPCs by age
npc_stats[age.."_total"] = npc_stats[age.."_total"] + 1
-- Increase number of NPCs by age and sex
npc_stats[ent:get_luaentity().sex][age] =
npc_stats[ent:get_luaentity().sex][age] + 1
meta:set_string("npc_stats", minetest.serialize(npc_stats))
-- Temp
--meta:set_string("infotext", meta:get_string("infotext")..", "..spawned_npc_count)
npc.log("INFO", "Spawning successful!")
-- Check if there are more NPCs to spawn
if spawned_npc_count >= npc_count then
-- Stop timer
npc.log("INFO", "No more NPCs to spawn at this location")
timer:stop()
else
-- Start another timer to spawn more NPC
local new_delay = math.random(npc.spawner.spawn_delay)
npc.log("INFO", "Spawning one more NPC in "..dump(npc.spawner.spawn_delay).."s")
timer:start(new_delay)
end
return true
else
npc.log("ERROR", "Spawning failed!")
ent:remove()
return false
end
end
end
-- This function takes care of calculating how many NPCs will be spawn
function spawner.calculate_npc_spawning(pos)
-- Check node
local node = minetest.get_node(pos)
if node.name ~= "advanced_npc:plotmarker_auto_spawner" then
return
end
-- Check node metadata
local meta = minetest.get_meta(pos)
-- Get nodes for this building
local node_data = minetest.deserialize(meta:get_string("node_data"))
if node_data == nil then
npc.log("ERROR", "Mis-configured advanced_npc:plotmarker_auto_spawner at position: "..minetest.pos_to_string(pos))
return
end
-- Check number of beds
local beds_count = #node_data.bed_type--#spawner.filter_first_floor_nodes(node_data.bed_type, pos)
npc.log("DEBUG", "Found "..dump(beds_count).." beds in the building at "..minetest.pos_to_string(pos))
local npc_count = 0
-- If number of beds is zero or beds/2 is less than one, spawn
-- a single NPC.
if beds_count == 0 or (beds_count > 0 and beds_count / 2 < 1) then
-- Spawn a single NPC
npc_count = 1
else
-- Spawn (beds_count/2) NPCs
npc_count = ((beds_count / 2) - ((beds_count / 2) % 1))
end
npc.log("INFO", "Will spawn "..dump(npc_count).." NPCs at "..minetest.pos_to_string(pos))
-- Store amount of NPCs to spawn
meta:set_int("npc_count", npc_count)
-- Store amount of NPCs spawned
meta:set_int("spawned_npc_count", 0)
-- Start timer
local timer = minetest.get_node_timer(pos)
local delay = math.random(npc.spawner.spawn_delay)
timer:start(delay)
end
---------------------------------------------------------------------------------------
-- Support code for mg_villages mods
---------------------------------------------------------------------------------------
-- This function creates a table of the scannable nodes inside
-- a mg_villages building. It needs the plotmarker position for a start
-- point and the building_data to get the x, y and z-coordinate size
-- of the building schematic
function spawner.scan_mg_villages_building(pos, building_data)
--minetest.log("--------------------------------------------")
--minetest.log("Building data: "..dump(building_data))
--minetest.log("--------------------------------------------")
-- Get area of the building
local x_size = building_data.bsizex
local y_size = building_data.ysize
local z_size = building_data.bsizez
local brotate = building_data.brotate
local start_pos = {x=pos.x, y=pos.y, z=pos.z}
local x_sign, z_sign = 1, 1
-- Check plot direction
-- NOTE: Below values may be wrong, very wrong!
-- 0 - facing West, -X
-- 1 - facing North, +Z
-- 2 - facing East, +X
-- 3 - facing South -Z
if brotate == 0 then
x_sign, z_sign = 1, -1
elseif brotate == 1 then
x_sign, z_sign = -1, -1
local temp = z_size
z_size = x_size
x_size = temp
elseif brotate == 2 then
x_sign, z_sign = -1, 1
elseif brotate == 3 then
x_sign, z_sign = 1, 1
end
------------------------
-- For debug:
------------------------
-- Red is x marker
--minetest.set_node({x=pos.x + (x_sign * x_size),y=pos.y,z=pos.z}, {name = "wool:red"})
--minetest.get_meta({x=pos.x + (x_sign * x_size),y=pos.y,z=pos.z}):set_string("infotext", minetest.get_meta(pos):get_string("infotext")..", Axis: x, Sign: "..dump(x_sign))
-- Blue is z marker
--minetest.set_node({x=pos.x,y=pos.y,z=pos.z + (z_sign * z_size)}, {name = "wool:blue"})
--minetest.get_meta({x=pos.x,y=pos.y,z=pos.z + (z_sign * z_size)}):set_string("infotext", minetest.get_meta(pos):get_string("infotext")..", Axis: z, Sign: "..dump(z_sign))
npc.log("DEBUG", "Start pos: "..minetest.pos_to_string(start_pos))
npc.log("DEBUG", "Plot: "..dump(minetest.get_meta(start_pos):get_string("infotext")))
npc.log("DEBUG", "Brotate: "..dump(brotate))
npc.log("DEBUG", "X_sign: "..dump(x_sign))
npc.log("DEBUG", "X_adj: "..dump(x_sign*x_size))
npc.log("DEBUG", "Z_sign: "..dump(z_sign))
npc.log("DEBUG", "Z_adj: "..dump(z_sign*z_size))
local end_pos = {x=pos.x + (x_sign * x_size), y=pos.y + y_size, z=pos.z + (z_sign * z_size)}
-- For debug:
--minetest.set_node(start_pos, {name="default:mese_block"})
--minetest.set_node(end_pos, {name="default:mese_block"})
--minetest.get_meta(end_pos):set_string("infotext", minetest.get_meta(start_pos):get_string("infotext"))
npc.log("DEBUG", "Calculated end pos: "..minetest.pos_to_string(end_pos))
return spawner.scan_area(start_pos, end_pos)
end
-- This function replaces an existent mg_villages:plotmarker with
-- and advanced_npc:auto_spawner. The existing metadata will be kept,
-- to allow compatibility. A new formspec will appear on right-click,
-- however it will as well allow to buy or manage the plot.
-- Also, the building is scanned for NPC-usable nodes and the amount
-- of NPCs to spawn and the interval is calculated.
function spawner.replace_mg_villages_plotmarker(pos)
-- Check if it is already replaced
-- if minetest.get_node(pos).name == "advanced_npc:plotmarker_auto_spawner" then
-- return
-- end
-- Get the meta at the current position
local meta = minetest.get_meta(pos)
local village_id = meta:get_string("village_id")
local plot_nr = meta:get_int("plot_nr")
local infotext = meta:get_string("infotext")
-- Following line from mg_villages mod, protection.lua
local btype = mg_villages.all_villages[village_id].to_add_data.bpos[plot_nr].btype
local building_data = mg_villages.BUILDINGS[btype]
local building_type = building_data.typ
-- Check if the building is of the support types
for _,value in pairs(npc.spawner.mg_villages_supported_building_types) do
if building_type == value then
npc.log("INFO", "Replacing mg_villages:plotmarker at "..minetest.pos_to_string(pos))
-- Replace the plotmarker for auto-spawner
minetest.set_node(pos, {name="advanced_npc:plotmarker_auto_spawner"})
-- Store old plotmarker metadata again
meta:set_string("village_id", village_id)
meta:set_int("plot_nr", plot_nr)
meta:set_string("infotext", infotext)
-- Store building type in metadata
meta:set_string("building_type", building_type)
-- Store plot information
local plot_info = mg_villages.all_villages[village_id].to_add_data.bpos[plot_nr]
plot_info["ysize"] = building_data.ysize
-- minetest.log("Plot info at replacement time: "..dump(plot_info))
meta:set_string("plot_info", minetest.serialize(plot_info))
-- Scan building for nodes
local nodedata = spawner.scan_mg_villages_building(pos, plot_info)
-- Find building entrance
local doors = nodedata.openable_type
--minetest.log("Found "..dump(#doors).." openable nodes")
local entrance = npc.places.find_entrance_from_openable_nodes(doors, pos)
if entrance then
npc.log("INFO", "Found building entrance at: "..minetest.pos_to_string(entrance.node_pos))
else
npc.log("ERROR", "Unable to find building entrance!")
end
-- Store building entrance
meta:set_string("entrance", minetest.serialize(entrance))
-- Store nodedata into the spawner's metadata
meta:set_string("node_data", minetest.serialize(nodedata))
-- Initialize NPCs
local npcs = {}
meta:set_string("npcs", minetest.serialize(npcs))
-- Initialize NPC stats
local npc_stats = {
male = {
total = 0,
adult = 0,
child = 0
},
female = {
total = 0,
adult = 0,
child = 0
},
adult_total = 0,
child_total = 0
}
meta:set_string("npc_stats", minetest.serialize(npc_stats))
-- Set replaced
meta:set_string("replaced", "true")
-- Stop searching for building type
break
end
end
end
-- Only register the node, the ABM and the LBM if mg_villages mod
-- is present
if minetest.get_modpath("mg_villages") ~= nil then
-- Node registration
-- This node is currently a slightly modified mg_villages:plotmarker
-- TODO: Change formspec to a more detailed one.
minetest.register_node("advanced_npc:plotmarker_auto_spawner", {
description = "Automatic NPC Spawner",
drawtype = "nodebox",
tiles = {"default_stone.png"},
paramtype = "light",
paramtype2 = "facedir",
node_box = {
type = "fixed",
fixed = {
{-0.5+2/16, -0.5, -0.5+2/16, 0.5-2/16, -0.5+2/16, 0.5-2/16},
--{-0.5+0/16, -0.5, -0.5+0/16, 0.5-0/16, -0.5+0/16, 0.5-0/16},
}
},
walkable = false,
groups = {cracky=3,stone=2},
on_rightclick = function(pos, node, clicker, itemstack, pointed_thing)
-- NOTE: This is temporary code for testing...
local nodedata = minetest.deserialize(minetest.get_meta(pos):get_string("node_data"))
--minetest.log("Node data: "..dump(nodedata))
--minetest.log("Entrance: "..dump(minetest.deserialize(minetest.get_meta(pos):get_string("entrance"))))
--minetest.log("First-floor beds: "..dump(spawner.filter_first_floor_nodes(nodedata.bed_type, pos)))
--local entrance = npc.places.find_entrance_from_openable_nodes(nodedata.openable_type, pos)
--minetest.log("Found entrance: "..dump(entrance))
-- for i = 1, #nodedata.bed_type do
-- nodedata.bed_type[i].owner = ""
-- end
-- minetest.get_meta(pos):set_string("node_data", minetest.serialize(nodedata))
-- minetest.log("Cleared bed owners")
--minetest.log("NPC stats: "..dump(minetest.deserialize(minetest.get_meta(pos):get_string("npc_stats"))))
return mg_villages.plotmarker_formspec( pos, nil, {}, clicker )
end,
on_receive_fields = function(pos, formname, fields, sender)
return mg_villages.plotmarker_formspec( pos, formname, fields, sender );
end,
on_timer = function(pos, elapsed)
npc.spawner.spawn_npc(pos)
end,
-- protect against digging
can_dig = function(pos, player)
local meta = minetest.get_meta(pos);
if (meta and meta:get_string("village_id") ~= "" and meta:get_int("plot_nr") and meta:get_int("plot_nr") > 0 ) then
return false;
end
return true;
end
})
-- LBM Registration
-- Used to modify plotmarkers and replace them with advanced_npc:plotmarker_auto_spawner
-- minetest.register_lbm({
-- label = "Replace mg_villages:plotmarker with Advanced NPC auto spawners",
-- name = "advanced_npc:mg_villages_plotmarker_replacer",
-- nodenames = {"mg_villages:plotmarker"},
-- run_at_every_load = false,
-- action = function(pos, node)
-- -- Check if replacement is activated
-- if npc.spawner.replace_activated then
-- -- Replace mg_villages:plotmarker
-- spawner.replace_mg_villages_plotmarker(pos)
-- -- Set NPCs to spawn
-- spawner.calculate_npc_spawning(pos)
-- end
-- end
-- })
-- ABM Registration
minetest.register_abm({
label = "Replace mg_villages:plotmarker with Advanced NPC auto spawners",
nodenames = {"mg_villages:plotmarker"},
interval = npc.spawner.replacement_interval,
chance = 5,
catch_up = true,
action = function(pos, node, active_object_count, active_object_count_wider)
-- Check if replacement is needed
if minetest.get_meta(pos):get_string("replaced") == "true" then
return
end
-- Check if replacement is activated
if npc.spawner.replace_activated then
-- Replace mg_villages:plotmarker
spawner.replace_mg_villages_plotmarker(pos)
-- Set NPCs to spawn
spawner.calculate_npc_spawning(pos)
end
end
})
end
-- Chat commands to manage spawners
minetest.register_chatcommand("restore_plotmarkers", {
description = "Replaces all advanced_npc:plotmarker_auto_spawner with mg_villages:plotmarker in the specified radius.",
privs = {server=true},
func = function(name, param)
-- Check if radius is null
if param == nil then
minetest.chat_send_player(name, "Need to enter a radius as an integer number. Ex. /restore_plotmarkers 10 for a radius of 10")
end
-- Get player position
local pos = {}
for _,player in pairs(minetest.get_connected_players()) do
if player:get_player_name() == name then
pos = player:get_pos()
break
end
end
-- Search for nodes
local radius = tonumber(param)
local start_pos = {x=pos.x - radius, y=pos.y - radius, z=pos.z - radius}
local end_pos = {x=pos.x + radius, y=pos.y + radius, z=pos.z + radius}
local nodes = minetest.find_nodes_in_area_under_air(start_pos, end_pos,
{"advanced_npc:plotmarker_auto_spawner"})
-- Check if we have nodes to replace
minetest.chat_send_player(name, "Found "..dump(#nodes).." nodes to replace...")
if #nodes == 0 then
return
end
-- Replace all nodes
for i = 1, #nodes do
--minetest.log(dump(nodes[i]))
local meta = minetest.get_meta(nodes[i])
local village_id = meta:get_string("village_id")
local plot_nr = meta:get_int("plot_nr")
local infotext = meta:get_string("infotext")
-- Replace node
minetest.set_node(nodes[i], {name="mg_villages:plotmarker"})
-- Set metadata
meta = minetest.get_meta(nodes[i])
meta:set_string("village_id", village_id)
meta:set_int("plot_nr", plot_nr)
meta:set_string("infotext", infotext)
-- Clear NPC stats, NPC data and node data
meta:set_string("node_data", nil)
meta:set_string("npcs", nil)
meta:set_string("npc_stats", nil)
end
minetest.chat_send_player(name, "Finished replacement of "..dump(#nodes).." auto-spawners successfully")
end
})
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