---------------------------------------------------------------------------
-- Voxelis - Voxel survival sandbox for Luanti
-- Copyright (C) 2024 Mad Star Studio LLC
-- 
-- This program is free software; you can redistribute it and/or modify
-- it under the terms of the GNU General Public License as published by
-- the Free Software Foundation; either version 3 of the License, or
-- (at your option) any later version.
--
-- You should have received a copy of the GNU General Public License along
-- with this program; if not, see <http://www.gnu.org/licenses/>.
---------------------------------------------------------------------------

vox_mapgen_core = { }

-- Also run...
dofile(minetest.get_modpath("vox_mapgen_core").."/ores.lua")

-- Disable minetest dungeons. We're making our own with blackjack and hookers.
minetest.set_mapgen_setting("mg_flags", "dungeons", false)

-- Some adjustments based on different generators.
-- For now we allow v7, and haven't looked at the other generators.
if mg_name == "v7" then
    minetest.set_mapgen_setting("mg7_cavern_threshold", 0.2, true)
    minetest.set_mapgen_setting("mg_flags", "dungeons", false)
end

-- And some superflat tweaks.
if superflat then
    -- Disable caves
    minetest.set_mapgen_setting("mg_flags", "caves", false)
    -- Disable dungeons
    minetest.set_mapgen_setting("mg_flags", "dungeons", false)
    -- Disable decorations
    minetest.set_mapgen_setting("mg_flags", "decoration", false)
    minetest.set_mapgen_setting("mgflat_spflags", "nocaves,nohills", true)
end
    

-- Generate flat bedrock at the lowest point of the world, -10000.
local function generate_bedrock(minp, maxp, data)
    local vi = 0
    for z = minp.z, maxp.z do
        for x = minp.x, maxp.x do
            for y = -10000, -10000 do
                local c_air = minetest.get_content_id("air")
                data[vi] = c_air
                vi = vi + 1
            end
        end
    end
end

-- Put air/void beneath bedrock
local function generate_void(minp, maxp, data)
    local vi = 0
    for z = minp.z, maxp.z do
        for x = minp.x, maxp.x do
            for y = -10001, -31000 do
                local c_air = minetest.get_content_id("air")
                data[vi] = c_air
                vi = vi + 1
            end
        end
    end
end