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Remove mcl_structures:structblocks (#4619)

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As spawning happens via gennotify anyway, we can omit placing a
structblock right away.

This also avoids certain cases of holes in snow cover or water.
Plus, the code is simpler.

Isolated from the big mapgen overhaul, for the main branch.

Reviewed-on: https://git.minetest.land/VoxeLibre/VoxeLibre/pulls/4619
Reviewed-by: Mikita Wiśniewski <rudzik8@protonmail.com>
Co-authored-by: kno10 <erich.schubert@gmail.com>
Co-committed-by: kno10 <erich.schubert@gmail.com>
This commit is contained in:
kno10 2024-08-31 21:01:44 +02:00 committed by the-real-herowl
parent 05bfe5513f
commit 444c491e14
2 changed files with 28 additions and 54 deletions
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6
mods/MAPGEN/mcl_mapgen_core/init.lua
View file

@ -484,18 +484,14 @@ end
-- This should be moved to mcl_structures eventually if the dependencies can be sorted out.
mcl_mapgen_core.register_generator("structures",nil, function(minp, maxp, blockseed)
local gennotify = minetest.get_mapgen_object("gennotify")
local has_struct = {}
local has = false
local poshash = minetest.hash_node_position(minp)
for _,struct in pairs(mcl_structures.registered_structures) do
local pr = PseudoRandom(blockseed + 42)
if struct.deco_id then
for _, pos in pairs(gennotify["decoration#"..struct.deco_id] or {}) do
local realpos = vector.offset(pos,0,1,0)
minetest.remove_node(realpos)
minetest.fix_light(vector.offset(pos,-1,-1,-1),vector.offset(pos,1,3,1))
if struct.chunk_probability == nil or (not has and pr:next(1,struct.chunk_probability) == 1 ) then
mcl_structures.place_structure(realpos,struct,pr,blockseed)
mcl_structures.place_structure(vector.offset(pos,0,1,0),struct,pr,blockseed)
has=true
end
end

38
mods/MAPGEN/mcl_structures/api.lua
View file

@ -325,24 +325,18 @@ function mcl_structures.place_structure(pos, def, pr, blockseed, rot)
end
end
function mcl_structures.register_structure(name,def,nospawn) --nospawn means it will be placed by another (non-nospawn) structure that contains it's structblock i.e. it will not be placed by mapgen directly
local EMPTY_SCHEMATIC = { size = {x = 0, y = 0, z = 0}, data = { } }
function mcl_structures.register_structure(name,def,nospawn) --nospawn means it will not be placed by mapgen decoration mechanism
if mcl_structures.is_disabled(name) then return end
local structblock = "mcl_structures:structblock_"..name
local flags = "place_center_x, place_center_z, force_placement"
local y_offset = 0
local sbgroups = { structblock = 1, not_in_creative_inventory=1 }
if def.flags then flags = def.flags end
flags = def.flags or "place_center_x, place_center_z, force_placement"
def.name = name
if nospawn then
sbgroups.structblock = nil
sbgroups.structblock_lbm = 1
else
if def.place_on then
if not nospawn and def.place_on then
minetest.register_on_mods_loaded(function() --make sure all previous decorations and biomes have been registered
def.deco = minetest.register_decoration({
name = "mcl_structures:deco_"..name,
decoration = structblock,
deco_type = "simple",
deco_type = "schematic",
schematic = EMPTY_SCHEMATIC,
place_on = def.place_on,
spawn_by = def.spawn_by,
num_spawn_by = def.num_spawn_by,
@ -354,15 +348,11 @@ function mcl_structures.register_structure(name,def,nospawn) --nospawn means it
y_max = def.y_max,
y_min = def.y_min
})
minetest.register_node(":"..structblock, {drawtype="airlike", walkable = false, pointable = false,groups = sbgroups,sunlight_propagates = true,})
def.structblock = structblock
def.deco_id = minetest.get_decoration_id("mcl_structures:deco_"..name)
minetest.set_gen_notify({decoration=true}, { def.deco_id })
--catching of gennotify happens in mcl_mapgen_core
end)
end
end
mcl_structures.registered_structures[name] = def
end
@ -395,16 +385,4 @@ function mcl_structures.register_structure_spawn(def)
})
end
--lbm for secondary structures (structblock included in base structure)
minetest.register_lbm({
name = "mcl_structures:struct_lbm",
run_at_every_load = true,
nodenames = {"group:structblock_lbm"},
action = function(pos, node)
minetest.remove_node(pos)
local name = node.name:gsub("mcl_structures:structblock_","")
local def = mcl_structures.registered_structures[name]
if not def then return end
mcl_structures.place_structure(pos)
end
})