MineClone5/mods/MAPGEN/mcl_debrisgen/init.lua

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local c_debris = minetest.get_content_id("mcl_nether:ancient_debris")
local c_netherrack = minetest.get_content_id("mcl_nether:netherrack")
local c_air = minetest.get_content_id("air")
local facedir = {
vector.new(0, 0, 1),
vector.new(0, 1, 0),
vector.new(1, 0, 0),
vector.new(0, 0, -1),
vector.new(0, -1, 0),
vector.new(-1, 0, 0),
}
minetest.register_on_generated(function(minp, maxp)
if maxp.y < mcl_vars.mg_nether_min or minp.y > mcl_vars.mg_nether_max then
return
end
local vm, emin, emax = minetest.get_mapgen_object("voxelmanip")
local data = vm:get_data()
local area = VoxelArea:new({MinEdge = emin, MaxEdge = emax})
for idx in area:iter(minp.x, math.max(minp.y, mcl_vars.mg_nether_min), minp.z, maxp.x, math.min(maxp.y, mcl_vars.mg_nether_max), maxp.z) do
if data[idx] == c_debris then
local pos = area:position(idx)
local exposed = false
for _, dir in pairs(facedir) do
if data[area:indexp(vector.add(pos, dir))] == c_air then
exposed = true
break
end
end
if exposed then
data[idx] = c_netherrack
end
end
end
vm:set_data(data)
vm:calc_lighting()
vm:update_liquids()
vm:write_to_map()
end)