Make monster spawners timer-based +balance
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Wuzzy
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559d60ffe9
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a9b54a0980
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@ -37,6 +37,8 @@ local function set_doll_properties(doll, mob)
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doll:get_luaentity()._mob = mob
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end
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--[[ Public function: Setup the spawner at pos.
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This function blindly assumes there's actually a spawner at pos.
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If not, then the results are undefined.
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@ -75,6 +77,121 @@ function mcl_monster_spawner.setup_spawner(pos, Mob, MinLight, MaxLight, MaxMobs
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-- Create doll
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local doll = minetest.add_entity({x=pos.x, y=pos.y-0.3, z=pos.z}, "mcl_monster_spawner:doll")
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set_doll_properties(doll, Mob)
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-- Start spawning very soon
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local t = minetest.get_node_timer(pos)
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t:start(2)
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end
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-- Spawn monsters around pos
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-- NOTE: The node is timer-based, rather than ABM-based.
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local spawn_monsters = function(pos, elapsed)
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-- get meta
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local meta = minetest.get_meta(pos)
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local active = meta:get_int("active")
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if active == 0 then
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-- Spawner not active yet, do nothing
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return
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end
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-- get settings
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local mob = meta:get_string("Mob")
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local mlig = meta:get_int("MinLight")
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local xlig = meta:get_int("MaxLight")
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local num = meta:get_int("MaxMobsInArea")
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local pla = meta:get_int("PlayerDistance")
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local yof = meta:get_int("YOffset")
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-- if amount is 0 then do nothing
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if num == 0 then
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return
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end
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-- are we spawning a registered mob?
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if not mobs.spawning_mobs[mob] then
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minetest.log("error", "[mobs] Monster Spawner: Mob doesn't exist: "..mob)
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return
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end
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-- check objects inside 8×8 area around spawner
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local objs = minetest.get_objects_inside_radius(pos, 8)
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local count = 0
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local ent = nil
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local timer = minetest.get_node_timer(pos)
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-- spawn mob if player detected and in range
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if pla > 0 then
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local in_range = 0
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local objs = minetest.get_objects_inside_radius(pos, pla)
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for _,oir in pairs(objs) do
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if oir:is_player() then
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in_range = 1
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break
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end
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end
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-- player not found
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if in_range == 0 then
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-- Try again quickly
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timer:start(2)
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return
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end
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end
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-- count mob objects of same type in area
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for k, obj in ipairs(objs) do
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ent = obj:get_luaentity()
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if ent and ent.name and ent.name == mob then
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count = count + 1
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end
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end
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-- Are there too many of same type? then fail
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if count >= num then
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timer:start(math.random(5, 20))
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return
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end
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-- find air blocks within 8×3×8 nodes of spawner
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local air = minetest.find_nodes_in_area(
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{x = pos.x - 4, y = pos.y - 1 + yof, z = pos.z - 4},
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{x = pos.x + 4, y = pos.y + 1 + yof, z = pos.z + 4},
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{"air"})
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-- spawn up to 4 mobs in random air blocks
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if air then
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for a=1, 4 do
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if #air <= 0 then
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-- We're out of space! Stop spawning
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break
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end
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local air_index = math.random(#air)
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local pos2 = air[air_index]
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local lig = minetest.get_node_light(pos2) or 0
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pos2.y = pos2.y + 0.5
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-- only if light levels are within range
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if lig >= mlig and lig <= xlig then
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minetest.add_entity(pos2, mob)
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end
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table.remove(air, air_index)
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end
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end
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-- Spawn attempt done. Next spawn attempt much later
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timer:start(math.random(10, 39.95))
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end
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minetest.register_node("mcl_monster_spawner:spawner", {
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@ -112,6 +229,8 @@ minetest.register_node("mcl_monster_spawner:spawner", {
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end
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end,
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on_timer = spawn_monsters,
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on_receive_fields = function(pos, formname, fields, sender)
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if not fields.text or fields.text == "" then
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@ -200,118 +319,3 @@ minetest.register_entity("mcl_monster_spawner:doll", doll_def)
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local max_per_block = tonumber(minetest.setting_get("max_objects_per_block") or 99)
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-- spawner abm
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minetest.register_abm({
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label = "Monster Spawner spawning a monster",
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nodenames = {"mcl_monster_spawner:spawner"},
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interval = 10,
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chance = 4,
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catch_up = false,
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action = function(pos, node, active_object_count, active_object_count_wider)
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-- return if too many entities already
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if active_object_count_wider >= max_per_block then
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return
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end
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-- get meta and command
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local meta = minetest.get_meta(pos)
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local active = meta:get_int("active")
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if active == 0 then
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-- Spawner not active yet, do nothing
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return
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end
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-- get settings
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local mob = meta:get_string("Mob")
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local mlig = meta:get_int("MinLight")
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local xlig = meta:get_int("MaxLight")
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local num = meta:get_int("MaxMobsInArea")
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local pla = meta:get_int("PlayerDistance")
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local yof = meta:get_int("YOffset")
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-- if amount is 0 then do nothing
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if num == 0 then
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return
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end
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-- are we spawning a registered mob?
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if not mobs.spawning_mobs[mob] then
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minetest.log("error", "[mobs] Monster Spawner: Mob doesn't exist: "..mob)
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return
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end
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-- check objects inside 8×8 area around spawner
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local objs = minetest.get_objects_inside_radius(pos, 8)
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local count = 0
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local ent = nil
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-- count mob objects of same type in area
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for k, obj in ipairs(objs) do
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ent = obj:get_luaentity()
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if ent and ent.name and ent.name == mob then
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count = count + 1
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end
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end
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-- is there too many of same type?
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if count >= num then
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return
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end
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-- spawn mob if player detected and in range
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if pla > 0 then
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local in_range = 0
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local objs = minetest.get_objects_inside_radius(pos, pla)
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for _,oir in pairs(objs) do
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if oir:is_player() then
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in_range = 1
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break
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end
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end
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-- player not found
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if in_range == 0 then
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return
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end
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end
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-- find air blocks within 8×3×8 nodes of spawner
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local air = minetest.find_nodes_in_area(
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{x = pos.x - 4, y = pos.y - 1 + yof, z = pos.z - 4},
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{x = pos.x + 4, y = pos.y + 1 + yof, z = pos.z + 4},
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{"air"})
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-- spawn up to 4 mobs in random air blocks
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if air then
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for a=1, 4 do
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if #air <= 0 then
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-- We're out of space! Stop spawning
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break
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end
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local air_index = math.random(#air)
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local pos2 = air[air_index]
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local lig = minetest.get_node_light(pos2) or 0
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pos2.y = pos2.y + 0.5
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-- only if light levels are within range
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if lig >= mlig and lig <= xlig then
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minetest.add_entity(pos2, mob)
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end
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table.remove(air, air_index)
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end
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end
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end
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})
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