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use gennotify instead of lbm for placement

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keep the lbm for secondary structures
This commit is contained in:
cora 2022-06-10 01:06:24 +02:00
parent 6406a14738
commit 1eaac3c406
1 changed files with 39 additions and 18 deletions
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57
mods/MAPGEN/mcl_structures/api.lua
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@ -17,15 +17,35 @@ local registered_structures = {}
}
]]--
local function place_schem(pos, def, pr)
if not def then return end
if type(def.y_offset) == "function" then
y_offset = def.y_offset(pr)
elseif def.y_offset then
y_offset = def.y_offset
end
if def.filenames then
local file = def.filenames[pr:next(1,#def.filenames)]
local pp = vector.offset(pos,0,y_offset,0)
mcl_structures.place_schematic(pp, file, "random", nil, true, "place_center_x,place_center_z",def.after_place,pr,{pos,def})
elseif def.place_func and def.place_func(pos,def) then
def.after_place(pos,def)
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 structblock = "mcl_structures:structblock_"..name
minetest.register_node(":"..structblock, {drawtype="airlike", walkable = false, pointable = false,groups = {structblock=1,not_in_creative_inventory=1}})
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
def.name = name
if nospawn == nil then
if nospawn then
sbgroups.structblock = nil
sbgroups.structblock_lbm = 1
else
def.deco = minetest.register_decoration({
name = "mcl_structures:deco_"..name,
decoration = structblock,
deco_type = "simple",
place_on = def.place_on,
@ -39,31 +59,32 @@ function mcl_structures.register_structure(name,def,nospawn) --nospawn means it
y_max = def.y_max,
y_min = def.y_min
})
local deco_id = minetest.get_decoration_id("mcl_structures:deco_"..name)
minetest.set_gen_notify({decoration=true}, { deco_id })
minetest.register_on_generated(function(minp, maxp, blockseed)
local gennotify = minetest.get_mapgen_object("gennotify")
local pr = PseudoRandom(blockseed + 42)
for _, pos in pairs(gennotify["decoration#"..deco_id] or {}) do
local realpos = vector.offset(pos,0,-1,0)
minetest.remove_node(realpos)
place_schem(realpos,def,pr)
end
end)
end
minetest.register_node(":"..structblock, {drawtype="airlike", walkable = false, pointable = false,groups = sbgroups})
registered_structures[name] = 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"},
nodenames = {"group:structblock_lbm"},
action = function(pos, node)
local name = node.name:gsub("mcl_structures:structblock_","")
local pr = PseudoRandom(pos.x+pos.y+pos.z)
local def = registered_structures[name]
local y_offset = 0
minetest.set_node(pos,{name="air"})
if type(def.y_offset) == "function" then
y_offset = def.y_offset(pr)
elseif def.y_offset then
y_offset = def.y_offset
end
if def.filenames then
local file = def.filenames[pr:next(1,#def.filenames)]
local pp = vector.offset(pos,0,y_offset,0)
mcl_structures.place_schematic(pp, file, "random", nil, true, "place_center_x,place_center_z",def.after_place,pr,{pos,def})
elseif def.place_func and def.place_func(pos,def) then
def.after_place(pos,def)
end
if not def then return end
minetest.remove_node(pos)
place_schem(pos)
end
})