VoxeLibre/mods/MAPGEN/vl_structures/spawning.lua
2024-09-20 17:19:19 +02:00

50 lines
2.1 KiB
Lua

-- todo: move this mostly to the mcl_mobs module?
local mob_cap_player = tonumber(minetest.settings:get("mcl_mob_cap_player")) or 75
local mob_cap_animal = tonumber(minetest.settings:get("mcl_mob_cap_animal")) or 10
local mg_name = minetest.get_mapgen_setting("mg_name")
local vector_offset = vector.offset
local structure_spawns = {}
--- Structure spawns via ABM
-- @param def table: containing
-- @param name string: Name
-- @param y_min number: minimum height
-- @param y_max number: maximum height
-- @param spawnon table: Node types to spawn on, can also use group:names
-- @param biomes table: Biomes to spawn in
-- @param chance number: Spawn chance, default 5, will trigger 1/chance per-node per-interval
-- @param interval number: Spawn check interval in seconds, default 60.0
-- @param limit number: Local mob cap, default 7
function vl_structures.register_structure_spawn(def)
minetest.register_abm({
label = "Spawn "..def.name,
nodenames = def.spawnon,
min_y = def.y_min or -31000,
max_y = def.y_max or 31000,
interval = def.interval or 60,
chance = def.chance or 5,
action = function(pos, node, active_object_count, active_object_count_wider)
-- FIXME: review this logic, legacy code
local limit = def.limit or 7
if active_object_count_wider > limit + mob_cap_animal then return end
if active_object_count_wider > mob_cap_player then return end
local p = vector_offset(pos, 0, 1, 0)
local pname = minetest.get_node(p).name
if def.type_of_spawning == "water" then
if pname ~= "mcl_core:water_source" and pname ~= "mclx_core:river_water_source" then return end
else
if pname ~= "air" then return end -- FIXME: allow everything non-walkable, non-water, non-lava?
end
if minetest.get_meta(pos):get_string("spawnblock") == "" then return end
if mg_name ~= "v6" and mg_name ~= "singlenode" and def.biomes then
if table.indexof(def.biomes, minetest.get_biome_name(minetest.get_biome_data(p).biome)) == -1 then
return
end
end
local mobdef = minetest.registered_entities[def.name]
if mobdef.can_spawn and not mobdef.can_spawn(p) then return end
minetest.add_entity(p, def.name)
end,
})
end