Make monster spawners timer-based +balance

This commit is contained in:
Wuzzy 2017-05-25 05:37:13 +02:00
parent 559d60ffe9
commit a9b54a0980

@ -37,6 +37,8 @@ local function set_doll_properties(doll, mob)
doll:get_luaentity()._mob = mob
end
--[[ Public function: Setup the spawner at pos.
This function blindly assumes there's actually a spawner at pos.
If not, then the results are undefined.
@ -75,6 +77,121 @@ function mcl_monster_spawner.setup_spawner(pos, Mob, MinLight, MaxLight, MaxMobs
-- Create doll
local doll = minetest.add_entity({x=pos.x, y=pos.y-0.3, z=pos.z}, "mcl_monster_spawner:doll")
set_doll_properties(doll, Mob)
-- Start spawning very soon
local t = minetest.get_node_timer(pos)
t:start(2)
end
-- Spawn monsters around pos
-- NOTE: The node is timer-based, rather than ABM-based.
local spawn_monsters = function(pos, elapsed)
-- get meta
local meta = minetest.get_meta(pos)
local active = meta:get_int("active")
if active == 0 then
-- Spawner not active yet, do nothing
return
end
-- get settings
local mob = meta:get_string("Mob")
local mlig = meta:get_int("MinLight")
local xlig = meta:get_int("MaxLight")
local num = meta:get_int("MaxMobsInArea")
local pla = meta:get_int("PlayerDistance")
local yof = meta:get_int("YOffset")
-- if amount is 0 then do nothing
if num == 0 then
return
end
-- are we spawning a registered mob?
if not mobs.spawning_mobs[mob] then
minetest.log("error", "[mobs] Monster Spawner: Mob doesn't exist: "..mob)
return
end
-- check objects inside 8×8 area around spawner
local objs = minetest.get_objects_inside_radius(pos, 8)
local count = 0
local ent = nil
local timer = minetest.get_node_timer(pos)
-- spawn mob if player detected and in range
if pla > 0 then
local in_range = 0
local objs = minetest.get_objects_inside_radius(pos, pla)
for _,oir in pairs(objs) do
if oir:is_player() then
in_range = 1
break
end
end
-- player not found
if in_range == 0 then
-- Try again quickly
timer:start(2)
return
end
end
-- count mob objects of same type in area
for k, obj in ipairs(objs) do
ent = obj:get_luaentity()
if ent and ent.name and ent.name == mob then
count = count + 1
end
end
-- Are there too many of same type? then fail
if count >= num then
timer:start(math.random(5, 20))
return
end
-- find air blocks within 8×3×8 nodes of spawner
local air = minetest.find_nodes_in_area(
{x = pos.x - 4, y = pos.y - 1 + yof, z = pos.z - 4},
{x = pos.x + 4, y = pos.y + 1 + yof, z = pos.z + 4},
{"air"})
-- spawn up to 4 mobs in random air blocks
if air then
for a=1, 4 do
if #air <= 0 then
-- We're out of space! Stop spawning
break
end
local air_index = math.random(#air)
local pos2 = air[air_index]
local lig = minetest.get_node_light(pos2) or 0
pos2.y = pos2.y + 0.5
-- only if light levels are within range
if lig >= mlig and lig <= xlig then
minetest.add_entity(pos2, mob)
end
table.remove(air, air_index)
end
end
-- Spawn attempt done. Next spawn attempt much later
timer:start(math.random(10, 39.95))
end
minetest.register_node("mcl_monster_spawner:spawner", {
@ -112,6 +229,8 @@ minetest.register_node("mcl_monster_spawner:spawner", {
end
end,
on_timer = spawn_monsters,
on_receive_fields = function(pos, formname, fields, sender)
if not fields.text or fields.text == "" then
@ -200,118 +319,3 @@ minetest.register_entity("mcl_monster_spawner:doll", doll_def)
local max_per_block = tonumber(minetest.setting_get("max_objects_per_block") or 99)
-- spawner abm
minetest.register_abm({
label = "Monster Spawner spawning a monster",
nodenames = {"mcl_monster_spawner:spawner"},
interval = 10,
chance = 4,
catch_up = false,
action = function(pos, node, active_object_count, active_object_count_wider)
-- return if too many entities already
if active_object_count_wider >= max_per_block then
return
end
-- get meta and command
local meta = minetest.get_meta(pos)
local active = meta:get_int("active")
if active == 0 then
-- Spawner not active yet, do nothing
return
end
-- get settings
local mob = meta:get_string("Mob")
local mlig = meta:get_int("MinLight")
local xlig = meta:get_int("MaxLight")
local num = meta:get_int("MaxMobsInArea")
local pla = meta:get_int("PlayerDistance")
local yof = meta:get_int("YOffset")
-- if amount is 0 then do nothing
if num == 0 then
return
end
-- are we spawning a registered mob?
if not mobs.spawning_mobs[mob] then
minetest.log("error", "[mobs] Monster Spawner: Mob doesn't exist: "..mob)
return
end
-- check objects inside 8×8 area around spawner
local objs = minetest.get_objects_inside_radius(pos, 8)
local count = 0
local ent = nil
-- count mob objects of same type in area
for k, obj in ipairs(objs) do
ent = obj:get_luaentity()
if ent and ent.name and ent.name == mob then
count = count + 1
end
end
-- is there too many of same type?
if count >= num then
return
end
-- spawn mob if player detected and in range
if pla > 0 then
local in_range = 0
local objs = minetest.get_objects_inside_radius(pos, pla)
for _,oir in pairs(objs) do
if oir:is_player() then
in_range = 1
break
end
end
-- player not found
if in_range == 0 then
return
end
end
-- find air blocks within 8×3×8 nodes of spawner
local air = minetest.find_nodes_in_area(
{x = pos.x - 4, y = pos.y - 1 + yof, z = pos.z - 4},
{x = pos.x + 4, y = pos.y + 1 + yof, z = pos.z + 4},
{"air"})
-- spawn up to 4 mobs in random air blocks
if air then
for a=1, 4 do
if #air <= 0 then
-- We're out of space! Stop spawning
break
end
local air_index = math.random(#air)
local pos2 = air[air_index]
local lig = minetest.get_node_light(pos2) or 0
pos2.y = pos2.y + 0.5
-- only if light levels are within range
if lig >= mlig and lig <= xlig then
minetest.add_entity(pos2, mob)
end
table.remove(air, air_index)
end
end
end
})