mirror of
https://github.com/mt-mods/biome_lib.git
synced 2024-11-16 23:50:20 +01:00
865 lines
30 KiB
Lua
865 lines
30 KiB
Lua
-- Biome library mod by VanessaE
|
|
--
|
|
-- I got the temperature map idea from "hmmmm", values used for it came from
|
|
-- Splizard's snow mod.
|
|
--
|
|
|
|
biome_lib = {}
|
|
|
|
-- Boilerplate to support localized strings if intllib mod is installed.
|
|
local S
|
|
if minetest.global_exists("intllib") then
|
|
if intllib.make_gettext_pair then
|
|
S = intllib.make_gettext_pair()
|
|
else
|
|
S = intllib.Getter()
|
|
end
|
|
else
|
|
S = function(s) return s end
|
|
end
|
|
biome_lib.intllib = S
|
|
|
|
-- Various settings - most of these probably won't need to be changed
|
|
|
|
biome_lib.air = {name = "air"}
|
|
|
|
biome_lib.block_log = {}
|
|
biome_lib.block_recheck_list = {}
|
|
biome_lib.run_block_recheck_list = false
|
|
|
|
biome_lib.actionslist_aircheck = {}
|
|
biome_lib.actionslist_no_aircheck = {}
|
|
|
|
biome_lib.surfaceslist_aircheck = {}
|
|
biome_lib.surfaceslist_no_aircheck = {}
|
|
|
|
biome_lib.modpath = minetest.get_modpath("biome_lib")
|
|
|
|
local function tableize(s)
|
|
return string.split(string.trim(string.gsub(s, " ", "")))
|
|
end
|
|
|
|
local c1 = minetest.settings:get("biome_lib_default_grow_through_nodes")
|
|
biome_lib.default_grow_through_nodes = {["air"] = true}
|
|
if c1 then
|
|
for _, i in ipairs(tableize(c1)) do
|
|
biome_lib.default_grow_through_nodes[i] = true
|
|
end
|
|
else
|
|
biome_lib.default_grow_through_nodes["default:snow"] = true
|
|
end
|
|
|
|
local c2 = minetest.settings:get("biome_lib_default_water_nodes")
|
|
biome_lib.default_water_nodes = {}
|
|
if c2 then
|
|
for _, i in ipairs(tableize(c2)) do
|
|
biome_lib.default_water_nodes[i] = true
|
|
end
|
|
else
|
|
biome_lib.default_water_nodes["default:water_source"] = true
|
|
biome_lib.default_water_nodes["default:water_flowing"] = true
|
|
biome_lib.default_water_nodes["default:river_water_source"] = true
|
|
biome_lib.default_water_nodes["default:river_water_flowing"] = true
|
|
end
|
|
|
|
local c3 = minetest.settings:get("biome_lib_default_wet_surfaces")
|
|
local c4 = minetest.settings:get("biome_lib_default_ground_nodes")
|
|
local c5 = minetest.settings:get("biome_lib_default_grow_nodes")
|
|
|
|
biome_lib.default_wet_surfaces = c3 and tableize(c3) or {"default:dirt", "default:dirt_with_grass", "default:sand"}
|
|
biome_lib.default_ground_nodes = c4 and tableize(c4) or {"default:dirt_with_grass"}
|
|
biome_lib.default_grow_nodes = c5 and tableize(c5) or {"default:dirt_with_grass"}
|
|
|
|
biome_lib.debug_log_level = tonumber(minetest.settings:get("biome_lib_debug_log_level")) or 0
|
|
|
|
local rr = tonumber(minetest.settings:get("biome_lib_queue_ratio")) or -200
|
|
biome_lib.queue_ratio = 100 - rr
|
|
biome_lib.entries_per_step = math.max(-rr, 1)
|
|
|
|
-- the timer that manages the block timeout is in microseconds, but the timer
|
|
-- that manages the queue wakeup call has to be in seconds, and works best if
|
|
-- it takes a fraction of the block timeout interval.
|
|
|
|
local t = tonumber(minetest.settings:get("biome_lib_block_timeout")) or 300
|
|
|
|
biome_lib.block_timeout = t * 1000000
|
|
|
|
-- we don't want the wakeup function to trigger TOO often,
|
|
-- in case the user's block timeout setting is really low
|
|
biome_lib.block_queue_wakeup_time = math.min(t/2, math.max(20, t/10))
|
|
|
|
local time_speed = tonumber(minetest.settings:get("time_speed"))
|
|
|
|
biome_lib.plantlife_seed_diff = 329 -- needs to be global so other mods can see it
|
|
|
|
local perlin_octaves = 3
|
|
local perlin_persistence = 0.6
|
|
local perlin_scale = 100
|
|
|
|
local temperature_seeddiff = 112
|
|
local temperature_octaves = 3
|
|
local temperature_persistence = 0.5
|
|
local temperature_scale = 150
|
|
|
|
local humidity_seeddiff = 9130
|
|
local humidity_octaves = 3
|
|
local humidity_persistence = 0.5
|
|
local humidity_scale = 250
|
|
|
|
local time_scale = 1
|
|
|
|
if time_speed and time_speed > 0 then
|
|
time_scale = 72 / time_speed
|
|
end
|
|
|
|
--PerlinNoise(seed, octaves, persistence, scale)
|
|
|
|
biome_lib.perlin_temperature = PerlinNoise(temperature_seeddiff, temperature_octaves, temperature_persistence, temperature_scale)
|
|
biome_lib.perlin_humidity = PerlinNoise(humidity_seeddiff, humidity_octaves, humidity_persistence, humidity_scale)
|
|
|
|
-- Local functions
|
|
|
|
function biome_lib.dbg(msg, level)
|
|
local l = tonumber(level) or 0
|
|
if biome_lib.debug_log_level >= l then
|
|
print("[Biome Lib] "..msg)
|
|
minetest.log("verbose", "[Biome Lib] "..msg)
|
|
end
|
|
end
|
|
|
|
local function get_biome_data(pos, perlin_fertile)
|
|
local fertility = perlin_fertile:get_2d({x=pos.x, y=pos.z})
|
|
|
|
if type(minetest.get_biome_data) == "function" then
|
|
local data = minetest.get_biome_data(pos)
|
|
if data then
|
|
return fertility, data.heat / 100, data.humidity / 100
|
|
end
|
|
end
|
|
|
|
local temperature = biome_lib.perlin_temperature:get2d({x=pos.x, y=pos.z})
|
|
local humidity = biome_lib.perlin_humidity:get2d({x=pos.x+150, y=pos.z+50})
|
|
|
|
return fertility, temperature, humidity
|
|
end
|
|
|
|
function biome_lib:is_node_loaded(node_pos)
|
|
local n = minetest.get_node_or_nil(node_pos)
|
|
if (not n) or (n.name == "ignore") then
|
|
return false
|
|
end
|
|
return true
|
|
end
|
|
|
|
function biome_lib:set_defaults(biome)
|
|
biome.seed_diff = biome.seed_diff or 0
|
|
biome.min_elevation = biome.min_elevation or -31000
|
|
biome.max_elevation = biome.max_elevation or 31000
|
|
biome.temp_min = biome.temp_min or 1
|
|
biome.temp_max = biome.temp_max or -1
|
|
biome.humidity_min = biome.humidity_min or 1
|
|
biome.humidity_max = biome.humidity_max or -1
|
|
biome.plantlife_limit = biome.plantlife_limit or 0.1
|
|
biome.near_nodes_vertical = biome.near_nodes_vertical or 1
|
|
|
|
-- specific to on-generate
|
|
|
|
biome.neighbors = biome.neighbors or biome.surface
|
|
biome.near_nodes_size = biome.near_nodes_size or 0
|
|
biome.near_nodes_count = biome.near_nodes_count or 1
|
|
biome.rarity = biome.rarity or 50
|
|
biome.max_count = biome.max_count or 125
|
|
if biome.check_air ~= false then biome.check_air = true end
|
|
|
|
-- specific to abm spawner
|
|
biome.seed_diff = biome.seed_diff or 0
|
|
biome.light_min = biome.light_min or 0
|
|
biome.light_max = biome.light_max or 15
|
|
biome.depth_max = biome.depth_max or 1
|
|
biome.facedir = biome.facedir or 0
|
|
end
|
|
|
|
local function search_table(t, s)
|
|
for i = 1, #t do
|
|
if t[i] == s then return true end
|
|
end
|
|
return false
|
|
end
|
|
|
|
-- register the list of surfaces to spawn stuff on, filtering out all duplicates.
|
|
-- separate the items by air-checking or non-air-checking map eval methods
|
|
|
|
function biome_lib:register_generate_plant(biomedef, nodes_or_function_or_model)
|
|
|
|
-- if calling code passes an undefined node for a surface or
|
|
-- as a node to be spawned, don't register an action for it.
|
|
|
|
if type(nodes_or_function_or_model) == "string"
|
|
and string.find(nodes_or_function_or_model, ":")
|
|
and not minetest.registered_nodes[nodes_or_function_or_model] then
|
|
biome_lib.dbg("Warning: Ignored registration for undefined spawn node: "..dump(nodes_or_function_or_model), 2)
|
|
return
|
|
end
|
|
|
|
if type(nodes_or_function_or_model) == "string"
|
|
and not string.find(nodes_or_function_or_model, ":") then
|
|
biome_lib.dbg("Warning: Registered function call using deprecated string method: "..dump(nodes_or_function_or_model), 2)
|
|
end
|
|
|
|
if biomedef.check_air == false then
|
|
biome_lib.dbg("Register no-air-check mapgen hook: "..dump(nodes_or_function_or_model), 3)
|
|
biome_lib.actionslist_no_aircheck[#biome_lib.actionslist_no_aircheck + 1] = { biomedef, nodes_or_function_or_model }
|
|
local s = biomedef.surface
|
|
if type(s) == "string" then
|
|
if s and (string.find(s, "^group:") or minetest.registered_nodes[s]) then
|
|
if not search_table(biome_lib.surfaceslist_no_aircheck, s) then
|
|
biome_lib.surfaceslist_no_aircheck[#biome_lib.surfaceslist_no_aircheck + 1] = s
|
|
end
|
|
else
|
|
biome_lib.dbg("Warning: Ignored no-air-check registration for undefined surface node: "..dump(s), 2)
|
|
end
|
|
else
|
|
for i = 1, #biomedef.surface do
|
|
local s = biomedef.surface[i]
|
|
if s and (string.find(s, "^group:") or minetest.registered_nodes[s]) then
|
|
if not search_table(biome_lib.surfaceslist_no_aircheck, s) then
|
|
biome_lib.surfaceslist_no_aircheck[#biome_lib.surfaceslist_no_aircheck + 1] = s
|
|
end
|
|
else
|
|
biome_lib.dbg("Warning: Ignored no-air-check registration for undefined surface node: "..dump(s), 2)
|
|
end
|
|
end
|
|
end
|
|
else
|
|
biome_lib.dbg("Register with-air-checking mapgen hook: "..dump(nodes_or_function_or_model), 3)
|
|
biome_lib.actionslist_aircheck[#biome_lib.actionslist_aircheck + 1] = { biomedef, nodes_or_function_or_model }
|
|
local s = biomedef.surface
|
|
if type(s) == "string" then
|
|
if s and (string.find(s, "^group:") or minetest.registered_nodes[s]) then
|
|
if not search_table(biome_lib.surfaceslist_aircheck, s) then
|
|
biome_lib.surfaceslist_aircheck[#biome_lib.surfaceslist_aircheck + 1] = s
|
|
end
|
|
else
|
|
biome_lib.dbg("Warning: Ignored with-air-checking registration for undefined surface node: "..dump(s), 2)
|
|
end
|
|
else
|
|
for i = 1, #biomedef.surface do
|
|
local s = biomedef.surface[i]
|
|
if s and (string.find(s, "^group:") or minetest.registered_nodes[s]) then
|
|
if not search_table(biome_lib.surfaceslist_aircheck, s) then
|
|
biome_lib.surfaceslist_aircheck[#biome_lib.surfaceslist_aircheck + 1] = s
|
|
end
|
|
else
|
|
biome_lib.dbg("Warning: Ignored with-air-checking registration for undefined surface node: "..dump(s), 2)
|
|
end
|
|
end
|
|
end
|
|
end
|
|
end
|
|
|
|
-- Function to check whether a position matches the given biome definition
|
|
-- Returns true when the surface can be populated
|
|
|
|
local function populate_single_surface(biome, pos, perlin_fertile_area, checkair)
|
|
local p_top = { x = pos.x, y = pos.y + 1, z = pos.z }
|
|
|
|
if math.random(1, 100) <= biome.rarity then
|
|
return
|
|
end
|
|
|
|
local fertility, temperature, humidity = get_biome_data(pos, perlin_fertile_area)
|
|
|
|
local pos_biome_ok = pos.y >= biome.min_elevation and pos.y <= biome.max_elevation
|
|
and fertility > biome.plantlife_limit
|
|
and temperature <= biome.temp_min and temperature >= biome.temp_max
|
|
and humidity <= biome.humidity_min and humidity >= biome.humidity_max
|
|
|
|
if not pos_biome_ok then
|
|
return -- Y position mismatch, outside of biome
|
|
end
|
|
|
|
local biome_surfaces_string = dump(biome.surface)
|
|
local surface_ok = false
|
|
|
|
if not biome.depth then
|
|
local dest_node = minetest.get_node(pos)
|
|
if string.find(biome_surfaces_string, dest_node.name) then
|
|
surface_ok = true
|
|
else
|
|
if string.find(biome_surfaces_string, "group:") then
|
|
for j = 1, #biome.surface do
|
|
if string.find(biome.surface[j], "^group:")
|
|
and minetest.get_item_group(dest_node.name, biome.surface[j]) then
|
|
surface_ok = true
|
|
break
|
|
end
|
|
end
|
|
end
|
|
end
|
|
elseif not string.find(biome_surfaces_string,
|
|
minetest.get_node({ x = pos.x, y = pos.y-biome.depth-1, z = pos.z }).name) then
|
|
surface_ok = true
|
|
end
|
|
|
|
if not surface_ok then
|
|
return -- Surface does not match the given node group/name
|
|
end
|
|
|
|
if checkair and minetest.get_node(p_top).name ~= "air" then
|
|
return
|
|
end
|
|
|
|
if biome.below_nodes and
|
|
not string.find(dump(biome.below_nodes),
|
|
minetest.get_node({x=pos.x, y=pos.y-1, z=pos.z}).name
|
|
) then
|
|
return -- Node below does not match
|
|
end
|
|
|
|
if biome.ncount and
|
|
#minetest.find_nodes_in_area(
|
|
{x=pos.x-1, y=pos.y, z=pos.z-1},
|
|
{x=pos.x+1, y=pos.y, z=pos.z+1},
|
|
biome.neighbors
|
|
) <= biome.ncount then
|
|
return -- Not enough similar biome nodes around
|
|
end
|
|
|
|
if biome.near_nodes and
|
|
#minetest.find_nodes_in_area(
|
|
{x=pos.x-biome.near_nodes_size, y=pos.y-biome.near_nodes_vertical, z=pos.z-biome.near_nodes_size},
|
|
{x=pos.x+biome.near_nodes_size, y=pos.y+biome.near_nodes_vertical, z=pos.z+biome.near_nodes_size},
|
|
biome.near_nodes
|
|
) < biome.near_nodes_count then
|
|
return -- Long distance neighbours do not match
|
|
end
|
|
|
|
-- Position fits into given biome
|
|
return true
|
|
end
|
|
|
|
function biome_lib.populate_surfaces(biome, nodes_or_function_or_model, snodes, checkair)
|
|
local items_added = 0
|
|
|
|
biome_lib:set_defaults(biome)
|
|
|
|
-- filter stage 1 - find nodes from the supplied surfaces that are within the current biome.
|
|
|
|
local in_biome_nodes = {}
|
|
local perlin_fertile_area = minetest.get_perlin(biome.seed_diff, perlin_octaves, perlin_persistence, perlin_scale)
|
|
|
|
for i = 1, #snodes do
|
|
local pos = vector.new(snodes[i])
|
|
if populate_single_surface(biome, pos, perlin_fertile_area, checkair) then
|
|
in_biome_nodes[#in_biome_nodes + 1] = pos
|
|
end
|
|
end
|
|
|
|
-- filter stage 2 - find places within that biome area to place the plants.
|
|
|
|
local num_in_biome_nodes = #in_biome_nodes
|
|
|
|
if num_in_biome_nodes == 0 then
|
|
return 0
|
|
end
|
|
|
|
for i = 1, math.min(math.ceil(biome.max_count/25), num_in_biome_nodes) do
|
|
local tries = 0
|
|
local spawned = false
|
|
while tries < 2 and not spawned do
|
|
local pos = in_biome_nodes[math.random(1, num_in_biome_nodes)]
|
|
if biome.spawn_replace_node then
|
|
pos.y = pos.y-1
|
|
end
|
|
local p_top = { x = pos.x, y = pos.y + 1, z = pos.z }
|
|
|
|
if not (biome.avoid_nodes and biome.avoid_radius
|
|
and minetest.find_node_near(p_top, biome.avoid_radius
|
|
+ math.random(-1.5,2), biome.avoid_nodes)) then
|
|
if biome.delete_above then
|
|
minetest.swap_node(p_top, biome_lib.air)
|
|
minetest.swap_node({x=p_top.x, y=p_top.y+1, z=p_top.z}, biome_lib.air)
|
|
end
|
|
|
|
if biome.delete_above_surround then
|
|
minetest.swap_node({x=p_top.x-1, y=p_top.y, z=p_top.z}, biome_lib.air)
|
|
minetest.swap_node({x=p_top.x+1, y=p_top.y, z=p_top.z}, biome_lib.air)
|
|
minetest.swap_node({x=p_top.x, y=p_top.y, z=p_top.z-1}, biome_lib.air)
|
|
minetest.swap_node({x=p_top.x, y=p_top.y, z=p_top.z+1}, biome_lib.air)
|
|
|
|
minetest.swap_node({x=p_top.x-1, y=p_top.y+1, z=p_top.z}, biome_lib.air)
|
|
minetest.swap_node({x=p_top.x+1, y=p_top.y+1, z=p_top.z}, biome_lib.air)
|
|
minetest.swap_node({x=p_top.x, y=p_top.y+1, z=p_top.z-1}, biome_lib.air)
|
|
minetest.swap_node({x=p_top.x, y=p_top.y+1, z=p_top.z+1}, biome_lib.air)
|
|
end
|
|
|
|
if biome.spawn_replace_node then
|
|
minetest.swap_node(pos, biome_lib.air)
|
|
end
|
|
|
|
local objtype = type(nodes_or_function_or_model)
|
|
|
|
if objtype == "table" then
|
|
if nodes_or_function_or_model.axiom then
|
|
biome_lib:generate_tree(p_top, nodes_or_function_or_model)
|
|
biome_lib.dbg("An L-tree was spawned at "..minetest.pos_to_string(p_top), 4)
|
|
spawned = true
|
|
else
|
|
local fdir = nil
|
|
if biome.random_facedir then
|
|
fdir = math.random(biome.random_facedir[1], biome.random_facedir[2])
|
|
end
|
|
local n=nodes_or_function_or_model[math.random(#nodes_or_function_or_model)]
|
|
minetest.swap_node(p_top, { name = n, param2 = fdir })
|
|
biome_lib.dbg("Node \""..n.."\" was randomly picked from a list and placed at "..minetest.pos_to_string(p_top), 4)
|
|
spawned = true
|
|
end
|
|
elseif objtype == "string" and
|
|
minetest.registered_nodes[nodes_or_function_or_model] then
|
|
local fdir = nil
|
|
if biome.random_facedir then
|
|
fdir = math.random(biome.random_facedir[1], biome.random_facedir[2])
|
|
end
|
|
minetest.swap_node(p_top, { name = nodes_or_function_or_model, param2 = fdir })
|
|
biome_lib.dbg("Node \""..nodes_or_function_or_model.."\" was placed at "..minetest.pos_to_string(p_top), 4)
|
|
spawned = true
|
|
elseif objtype == "function" then
|
|
nodes_or_function_or_model(pos)
|
|
biome_lib.dbg("A function was run on surface node at "..minetest.pos_to_string(pos), 4)
|
|
spawned = true
|
|
elseif objtype == "string" and pcall(loadstring(("return %s(...)"):
|
|
format(nodes_or_function_or_model)),pos) then
|
|
spawned = true
|
|
biome_lib.dbg("An obsolete string-specified function was run on surface node at "..minetest.pos_to_string(p_top), 4)
|
|
else
|
|
biome_lib.dbg("Warning: Ignored invalid definition for object "..dump(nodes_or_function_or_model).." that was pointed at {"..dump(pos).."}", 2)
|
|
end
|
|
else
|
|
tries = tries + 1
|
|
end
|
|
end
|
|
if spawned then items_added = items_added + 1 end
|
|
end
|
|
return items_added
|
|
end
|
|
|
|
-- Primary log read-out/mapgen spawner
|
|
|
|
local function confirm_block_surroundings(p)
|
|
local n=minetest.get_node_or_nil(p)
|
|
if not n or n.name == "ignore" then return false end
|
|
|
|
for x = -32,32,64 do -- step of 64 causes it to only check the 8 corner blocks
|
|
for y = -32,32,64 do
|
|
for z = -32,32,64 do
|
|
local n=minetest.get_node_or_nil({x=p.x + x, y=p.y + y, z=p.z + z})
|
|
if not n or n.name == "ignore" then return false end
|
|
end
|
|
end
|
|
end
|
|
return true
|
|
end
|
|
|
|
function biome_lib.generate_block(shutting_down)
|
|
|
|
if shutting_down then
|
|
if #biome_lib.block_recheck_list > 0 then
|
|
for i = 1, #biome_lib.block_recheck_list do
|
|
biome_lib.block_log[#biome_lib.block_log + 1] = biome_lib.block_recheck_list[i]
|
|
end
|
|
biome_lib.block_recheck_list = {}
|
|
end
|
|
biome_lib.run_block_recheck_list = false
|
|
else
|
|
if biome_lib.run_block_recheck_list
|
|
and not biome_lib.block_recheck_list[1] then
|
|
biome_lib.run_block_recheck_list = false
|
|
end
|
|
end
|
|
|
|
local blocklog = biome_lib.run_block_recheck_list
|
|
and biome_lib.block_recheck_list
|
|
or biome_lib.block_log
|
|
|
|
if not blocklog[1] then return end
|
|
|
|
local minp = blocklog[1][1]
|
|
local maxp = blocklog[1][2]
|
|
local airflag = blocklog[1][3]
|
|
local pos_hash = minetest.hash_node_position(minp)
|
|
|
|
if not biome_lib.pos_hash then -- we need to read the maplock and get the surfaces list
|
|
local now = minetest.get_us_time()
|
|
biome_lib.pos_hash = {}
|
|
minetest.load_area(minp)
|
|
if not confirm_block_surroundings(minp)
|
|
and not shutting_down
|
|
and (blocklog[1][4] + biome_lib.block_timeout) > now then -- if any neighbors appear not to be loaded and the block hasn't expired yet, defer it
|
|
|
|
if biome_lib.run_block_recheck_list then
|
|
biome_lib.block_log[#biome_lib.block_log + 1] = table.copy(biome_lib.block_recheck_list[1])
|
|
table.remove(biome_lib.block_recheck_list, 1)
|
|
else
|
|
biome_lib.block_recheck_list[#biome_lib.block_recheck_list + 1] = table.copy(biome_lib.block_log[1])
|
|
table.remove(biome_lib.block_log, 1)
|
|
end
|
|
biome_lib.pos_hash = nil
|
|
biome_lib.dbg("Mapblock at "..minetest.pos_to_string(minp)..
|
|
" had a neighbor not fully emerged, skipped it for now.", 4)
|
|
return
|
|
else
|
|
biome_lib.pos_hash.surface_node_list = airflag
|
|
and minetest.find_nodes_in_area_under_air(minp, maxp, biome_lib.surfaceslist_aircheck)
|
|
or minetest.find_nodes_in_area(minp, maxp, biome_lib.surfaceslist_no_aircheck)
|
|
if #biome_lib.pos_hash.surface_node_list == 0 then
|
|
biome_lib.dbg("Mapblock at "..minetest.pos_to_string(minp).." dequeued: no detected surfaces.", 4)
|
|
table.remove(blocklog, 1)
|
|
biome_lib.pos_hash = nil
|
|
return
|
|
else
|
|
biome_lib.pos_hash.action_index = 1
|
|
biome_lib.dbg("Mapblock at "..minetest.pos_to_string(minp)..
|
|
" has "..#biome_lib.pos_hash.surface_node_list..
|
|
" surface nodes to work on (airflag="..dump(airflag)..")", 4)
|
|
end
|
|
end
|
|
elseif not (airflag and biome_lib.actionslist_aircheck[biome_lib.pos_hash.action_index])
|
|
and not (not airflag and biome_lib.actionslist_no_aircheck[biome_lib.pos_hash.action_index]) then
|
|
-- the block is finished, remove it
|
|
if #biome_lib.pos_hash.surface_node_list > 0 then
|
|
biome_lib.dbg("Deleted mapblock "..minetest.pos_to_string(minp).." from the block log", 4)
|
|
end
|
|
table.remove(blocklog, 1)
|
|
biome_lib.pos_hash = nil
|
|
else
|
|
-- below, [1] is biome, [2] is the thing to be added
|
|
local added = 0
|
|
if airflag then
|
|
if biome_lib.actionslist_aircheck[biome_lib.pos_hash.action_index] then
|
|
added = biome_lib.populate_surfaces(
|
|
biome_lib.actionslist_aircheck[biome_lib.pos_hash.action_index][1],
|
|
biome_lib.actionslist_aircheck[biome_lib.pos_hash.action_index][2],
|
|
biome_lib.pos_hash.surface_node_list, true)
|
|
biome_lib.pos_hash.action_index = biome_lib.pos_hash.action_index + 1
|
|
end
|
|
else
|
|
if biome_lib.actionslist_no_aircheck[biome_lib.pos_hash.action_index] then
|
|
added = biome_lib.populate_surfaces(
|
|
biome_lib.actionslist_no_aircheck[biome_lib.pos_hash.action_index][1],
|
|
biome_lib.actionslist_no_aircheck[biome_lib.pos_hash.action_index][2],
|
|
biome_lib.pos_hash.surface_node_list, false)
|
|
biome_lib.pos_hash.action_index = biome_lib.pos_hash.action_index + 1
|
|
end
|
|
end
|
|
if added > 0 then
|
|
biome_lib.dbg("biome_lib.populate_surfaces ran on mapblock at "..
|
|
minetest.pos_to_string(minp)..". Entry #"..
|
|
(biome_lib.pos_hash.action_index-1).." added "..added.." items.", 4)
|
|
end
|
|
end
|
|
end
|
|
|
|
-- "Play" them back, populating them with new stuff in the process
|
|
|
|
minetest.register_globalstep(function(dtime)
|
|
if not biome_lib.block_log[1] then return end -- the block log is empty
|
|
|
|
if math.random(100) > biome_lib.queue_ratio then return end
|
|
for s = 1, biome_lib.entries_per_step do
|
|
biome_lib.generate_block()
|
|
end
|
|
end)
|
|
|
|
-- Periodically wake-up the queue to give old blocks a chance to time-out
|
|
-- if the player isn't currently exploring (i.e. they're just playing in one area)
|
|
|
|
function biome_lib.wake_up_queue()
|
|
if #biome_lib.block_recheck_list > 1
|
|
and #biome_lib.block_log == 0 then
|
|
biome_lib.block_log[#biome_lib.block_log + 1] =
|
|
table.copy(biome_lib.block_recheck_list[#biome_lib.block_recheck_list])
|
|
biome_lib.block_recheck_list[#biome_lib.block_recheck_list] = nil
|
|
biome_lib.run_block_recheck_list = true
|
|
biome_lib.dbg("Woke-up the map queue to give old blocks a chance to time-out.", 3)
|
|
end
|
|
minetest.after(biome_lib.block_queue_wakeup_time, biome_lib.wake_up_queue)
|
|
end
|
|
|
|
biome_lib.wake_up_queue()
|
|
|
|
-- Play out the entire log all at once on shutdown
|
|
-- to prevent unpopulated map areas
|
|
|
|
local function format_time(t)
|
|
if t > 59999999 then
|
|
return os.date("!%M minutes and %S seconds", math.ceil(t/1000000))
|
|
else
|
|
return os.date("!%S seconds", math.ceil(t/1000000))
|
|
end
|
|
end
|
|
|
|
function biome_lib.check_remaining_time()
|
|
if minetest.get_us_time() > (biome_lib.shutdown_last_timestamp + 10000000) then -- report progress every 10s
|
|
biome_lib.shutdown_last_timestamp = minetest.get_us_time()
|
|
|
|
local entries_remaining = #biome_lib.block_log + #biome_lib.block_recheck_list
|
|
|
|
local total_purged = biome_lib.starting_count - entries_remaining
|
|
local elapsed_time = biome_lib.shutdown_last_timestamp - biome_lib.shutdown_start_time
|
|
biome_lib.dbg(string.format("%i entries, approximately %s remaining.",
|
|
entries_remaining, format_time(elapsed_time/total_purged * entries_remaining)))
|
|
end
|
|
end
|
|
|
|
minetest.register_on_shutdown(function()
|
|
biome_lib.shutdown_start_time = minetest.get_us_time()
|
|
biome_lib.shutdown_last_timestamp = minetest.get_us_time()+1
|
|
|
|
biome_lib.starting_count = #biome_lib.block_log + #biome_lib.block_recheck_list
|
|
|
|
if biome_lib.starting_count == 0 then
|
|
return
|
|
end
|
|
|
|
biome_lib.dbg("Stand by, purging the mapblock log "..
|
|
"(there are "..biome_lib.starting_count.." entries) ...", 0)
|
|
|
|
while #biome_lib.block_log > 0 do
|
|
biome_lib.generate_block(true)
|
|
biome_lib.check_remaining_time()
|
|
end
|
|
|
|
if #biome_lib.block_recheck_list > 0 then
|
|
biome_lib.block_log = table.copy(biome_lib.block_recheck_list)
|
|
biome_lib.block_recheck_list = nil
|
|
while #biome_lib.block_log > 0 do
|
|
biome_lib.generate_block(true)
|
|
biome_lib.check_remaining_time()
|
|
end
|
|
end
|
|
biome_lib.dbg("Log purge completed after "..
|
|
format_time(minetest.get_us_time() - biome_lib.shutdown_start_time)..".", 0)
|
|
end)
|
|
|
|
-- The spawning ABM
|
|
|
|
function biome_lib:spawn_on_surfaces(sd,sp,sr,sc,ss,sa)
|
|
|
|
local biome = {}
|
|
|
|
if type(sd) ~= "table" then
|
|
biome.spawn_delay = sd -- old api expects ABM interval param here.
|
|
biome.spawn_plants = {sp}
|
|
biome.avoid_radius = sr
|
|
biome.spawn_chance = sc
|
|
biome.spawn_surfaces = {ss}
|
|
biome.avoid_nodes = sa
|
|
else
|
|
biome = sd
|
|
end
|
|
|
|
if biome.spawn_delay*time_scale >= 1 then
|
|
biome.interval = biome.spawn_delay*time_scale
|
|
else
|
|
biome.interval = 1
|
|
end
|
|
|
|
biome_lib:set_defaults(biome)
|
|
biome.spawn_plants_count = #(biome.spawn_plants)
|
|
|
|
local n
|
|
if type(biome.spawn_plants) == "table" then
|
|
n = "random: "..biome.spawn_plants[1]..", ..."
|
|
else
|
|
n = biome.spawn_plants
|
|
end
|
|
biome.label = biome.label or "biome_lib spawn_on_surfaces(): "..n
|
|
|
|
minetest.register_abm({
|
|
nodenames = biome.spawn_surfaces,
|
|
interval = biome.interval,
|
|
chance = biome.spawn_chance,
|
|
neighbors = biome.neighbors,
|
|
label = biome.label,
|
|
action = function(pos, node, active_object_count, active_object_count_wider)
|
|
local p_top = { x = pos.x, y = pos.y + 1, z = pos.z }
|
|
local n_top = minetest.get_node(p_top)
|
|
local perlin_fertile_area = minetest.get_perlin(biome.seed_diff, perlin_octaves, perlin_persistence, perlin_scale)
|
|
|
|
local fertility, temperature, humidity = get_biome_data(pos, perlin_fertile_area)
|
|
|
|
local pos_biome_ok = pos.y >= biome.min_elevation and pos.y <= biome.max_elevation
|
|
and fertility > biome.plantlife_limit
|
|
and temperature <= biome.temp_min and temperature >= biome.temp_max
|
|
and humidity <= biome.humidity_min and humidity >= biome.humidity_max
|
|
and biome_lib:is_node_loaded(p_top)
|
|
|
|
if not pos_biome_ok then
|
|
return -- Outside of biome
|
|
end
|
|
|
|
local n_light = minetest.get_node_light(p_top, nil)
|
|
if n_light < biome.light_min or n_light > biome.light_max then
|
|
return -- Too dark or too bright
|
|
end
|
|
|
|
if biome.avoid_nodes and biome.avoid_radius and minetest.find_node_near(
|
|
p_top, biome.avoid_radius + math.random(-1.5,2), biome.avoid_nodes) then
|
|
return -- Nodes to avoid are nearby
|
|
end
|
|
|
|
if biome.neighbors and biome.ncount and
|
|
#minetest.find_nodes_in_area(
|
|
{x=pos.x-1, y=pos.y, z=pos.z-1},
|
|
{x=pos.x+1, y=pos.y, z=pos.z+1},
|
|
biome.neighbors
|
|
) <= biome.ncount then
|
|
return -- Near neighbour nodes are not present
|
|
end
|
|
|
|
local NEAR_DST = biome.near_nodes_size
|
|
if biome.near_nodes and biome.near_nodes_count and biome.near_nodes_size and
|
|
#minetest.find_nodes_in_area(
|
|
{x=pos.x-NEAR_DST, y=pos.y-biome.near_nodes_vertical, z=pos.z-NEAR_DST},
|
|
{x=pos.x+NEAR_DST, y=pos.y+biome.near_nodes_vertical, z=pos.z+NEAR_DST},
|
|
biome.near_nodes
|
|
) < biome.near_nodes_count then
|
|
return -- Far neighbour nodes are not present
|
|
end
|
|
|
|
if (biome.air_count and biome.air_size) and
|
|
#minetest.find_nodes_in_area(
|
|
{x=p_top.x-biome.air_size, y=p_top.y, z=p_top.z-biome.air_size},
|
|
{x=p_top.x+biome.air_size, y=p_top.y, z=p_top.z+biome.air_size},
|
|
"air"
|
|
) < biome.air_count then
|
|
return -- Not enough air
|
|
end
|
|
|
|
local walldir = biome_lib:find_adjacent_wall(p_top, biome.verticals_list, biome.choose_random_wall)
|
|
if biome.alt_wallnode and walldir then
|
|
if n_top.name == "air" then
|
|
minetest.swap_node(p_top, { name = biome.alt_wallnode, param2 = walldir })
|
|
end
|
|
return
|
|
end
|
|
|
|
local currentsurface = minetest.get_node(pos).name
|
|
|
|
if biome_lib.default_water_nodes[currentsurface] and
|
|
#minetest.find_nodes_in_area(
|
|
{x=pos.x, y=pos.y-biome.depth_max-1, z=pos.z},
|
|
vector.new(pos),
|
|
biome_lib.default_wet_surfaces
|
|
) == 0 then
|
|
return -- On water but no ground nearby
|
|
end
|
|
|
|
local rnd = math.random(1, biome.spawn_plants_count)
|
|
local plant_to_spawn = biome.spawn_plants[rnd]
|
|
local fdir = biome.facedir
|
|
if biome.random_facedir then
|
|
fdir = math.random(biome.random_facedir[1],biome.random_facedir[2])
|
|
end
|
|
if type(biome.spawn_plants) == "string" then
|
|
assert(loadstring(biome.spawn_plants.."(...)"))(pos)
|
|
elseif not biome.spawn_on_side and not biome.spawn_on_bottom and not biome.spawn_replace_node then
|
|
if n_top.name == "air" then
|
|
minetest.swap_node(p_top, { name = plant_to_spawn, param2 = fdir })
|
|
end
|
|
elseif biome.spawn_replace_node then
|
|
minetest.swap_node(pos, { name = plant_to_spawn, param2 = fdir })
|
|
|
|
elseif biome.spawn_on_side then
|
|
local onside = biome_lib:find_open_side(pos)
|
|
if onside then
|
|
minetest.swap_node(onside.newpos, { name = plant_to_spawn, param2 = onside.facedir })
|
|
end
|
|
elseif biome.spawn_on_bottom then
|
|
if minetest.get_node({x=pos.x, y=pos.y-1, z=pos.z}).name == "air" then
|
|
minetest.swap_node({x=pos.x, y=pos.y-1, z=pos.z}, { name = plant_to_spawn, param2 = fdir} )
|
|
end
|
|
end
|
|
end
|
|
})
|
|
end
|
|
|
|
-- Function to decide how to replace a plant - either grow it, replace it with
|
|
-- a tree, run a function, or die with an error.
|
|
|
|
function biome_lib:replace_object(pos, replacement, grow_function, walldir, seeddiff)
|
|
local growtype = type(grow_function)
|
|
if growtype == "table" then
|
|
minetest.swap_node(pos, biome_lib.air)
|
|
biome_lib:grow_tree(pos, grow_function)
|
|
return
|
|
elseif growtype == "function" then
|
|
local perlin_fertile_area = minetest.get_perlin(seeddiff, perlin_octaves, perlin_persistence, perlin_scale)
|
|
local fertility, temperature, _ = get_biome_data(pos, perlin_fertile_area)
|
|
grow_function(pos, fertility, temperature, walldir)
|
|
return
|
|
elseif growtype == "string" then
|
|
local perlin_fertile_area = minetest.get_perlin(seeddiff, perlin_octaves, perlin_persistence, perlin_scale)
|
|
local fertility, temperature, _ = get_biome_data(pos, perlin_fertile_area)
|
|
assert(loadstring(grow_function.."(...)"))(pos, fertility, temperature, walldir)
|
|
return
|
|
elseif growtype == "nil" then
|
|
minetest.swap_node(pos, { name = replacement, param2 = walldir})
|
|
return
|
|
elseif growtype ~= "nil" and growtype ~= "string" and growtype ~= "table" then
|
|
error("Invalid grow function "..dump(grow_function).." used on object at ("..dump(pos)..")")
|
|
end
|
|
end
|
|
|
|
dofile(biome_lib.modpath .. "/search_functions.lua")
|
|
assert(loadfile(biome_lib.modpath .. "/growth.lua"))(time_scale)
|
|
|
|
-- Check for infinite stacks
|
|
|
|
if minetest.get_modpath("unified_inventory") or not minetest.settings:get_bool("creative_mode") then
|
|
biome_lib.expect_infinite_stacks = false
|
|
else
|
|
biome_lib.expect_infinite_stacks = true
|
|
end
|
|
|
|
-- read a field from a node's definition
|
|
|
|
function biome_lib:get_nodedef_field(nodename, fieldname)
|
|
if not minetest.registered_nodes[nodename] then
|
|
return nil
|
|
end
|
|
return minetest.registered_nodes[nodename][fieldname]
|
|
end
|
|
|
|
if biome_lib.debug_log_level >= 3 then
|
|
biome_lib.last_count = 0
|
|
|
|
function biome_lib.show_pending_block_count()
|
|
if biome_lib.last_count ~= #biome_lib.block_log then
|
|
biome_lib.dbg(string.format("Pending block counts - ready to process: %-8icurrently deferred: %i",
|
|
#biome_lib.block_log, #biome_lib.block_recheck_list), 3)
|
|
biome_lib.last_count = #biome_lib.block_log
|
|
biome_lib.queue_idle_flag = false
|
|
elseif not biome_lib.queue_idle_flag then
|
|
if #biome_lib.block_recheck_list > 0 then
|
|
biome_lib.dbg("Mapblock queue only contains blocks that can't yet be processed.", 3)
|
|
biome_lib.dbg("Idling the queue until new blocks arrive or the next wake-up call occurs.", 3)
|
|
else
|
|
biome_lib.dbg("Mapblock queue has run dry.", 3)
|
|
biome_lib.dbg("Idling the queue until new blocks arrive.", 3)
|
|
end
|
|
biome_lib.queue_idle_flag = true
|
|
end
|
|
minetest.after(1, biome_lib.show_pending_block_count)
|
|
end
|
|
|
|
biome_lib.show_pending_block_count()
|
|
end
|
|
|
|
minetest.after(0, function()
|
|
biome_lib.dbg("Registered a total of "..(#biome_lib.surfaceslist_aircheck)+(#biome_lib.surfaceslist_no_aircheck).." surface types to be evaluated, spread", 0)
|
|
biome_lib.dbg("across "..#biome_lib.actionslist_aircheck.." actions with air-checking and "..#biome_lib.actionslist_no_aircheck.." actions without.", 0)
|
|
end)
|
|
|
|
biome_lib.dbg("[Biome Lib] Loaded", 0)
|