123 lines
3.5 KiB
Lua
123 lines
3.5 KiB
Lua
if not df_caverns.config.enable_oil_sea then
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return
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end
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local c_oil = minetest.get_content_id("oil:oil_source")
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local c_gas = minetest.get_content_id("mine_gas:gas")
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local c_gas_wisp = minetest.get_content_id("mine_gas:gas_wisp")
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local c_lava = minetest.get_content_id("default:lava_source")
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local c_obsidian = minetest.get_content_id("default:obsidian")
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-------------------------------------------------------------------------------------------
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local perlin_cave = {
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offset = 0,
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scale = 1,
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spread = {x=300, y=300, z=300},
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seed = 6000089,
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octaves = 3,
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persist = 0.67
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}
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-- large-scale rise and fall
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local perlin_wave = {
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offset = 0,
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scale = 1,
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spread = {x=1000, y=1000, z=1000},
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seed = 10089,
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octaves = 3,
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persist = 0.67
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}
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local median = df_caverns.config.oil_sea_level
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local floor_mult = -80
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local floor_displace = 60
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local ceiling_mult = 40
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local ceiling_displace = -30
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local wave_mult = 10
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local c_lava_set
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local y_max = median + 2*wave_mult + 2*ceiling_mult + ceiling_displace
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local y_min = median - 2*wave_mult + 2*floor_mult + floor_displace
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minetest.register_on_generated(function(minp, maxp, seed)
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--if out of range of cave definition limits, abort
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if minp.y > y_max or maxp.y < y_min then
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return
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end
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local t_start = os.clock()
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local vm, data, area = mapgen_helper.mapgen_vm_data()
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local nvals_cave = mapgen_helper.perlin2d("df_caverns:oil_cave", minp, maxp, perlin_cave)
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local nvals_wave = mapgen_helper.perlin2d("df_caverns:oil_wave", minp, maxp, perlin_wave)
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if c_lava_set == nil then
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c_lava_set = {}
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for name, def in pairs(minetest.registered_nodes) do
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if def.groups ~= nil and def.groups.lava ~= nil then
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c_lava_set[minetest.get_content_id(name)] = true
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end
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end
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end
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for vi, x, y, z in area:iterp_yxz(minp, maxp) do
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local index2d = mapgen_helper.index2d(minp, maxp, x, z)
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local abs_cave = math.abs(nvals_cave[index2d]) -- range is from 0 to approximately 2, with 0 being connected and 2s being islands
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local wave = nvals_wave[index2d] * wave_mult
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local floor_height = math.floor(abs_cave * floor_mult + floor_displace + median + wave)
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local ceiling_height = math.floor(abs_cave * ceiling_mult + median + ceiling_displace + wave)
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if y > floor_height - 5 and y < ceiling_height + 5 then
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if c_lava_set[data[vi]] then
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data[vi] = c_obsidian
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end
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end
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if y > floor_height and y < ceiling_height then
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if y > median then
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if math.random() < 0.00025 and ((y < median + 3) or (y > ceiling_height - 3)) then
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data[vi] = c_gas_wisp
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else
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data[vi] = c_gas
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end
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else
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data[vi] = c_oil
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end
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end
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end
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--send data back to voxelmanip
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vm:set_data(data)
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--calc lighting
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vm:set_lighting({day = 0, night = 0})
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vm:calc_lighting()
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vm:update_liquids()
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--write it to world
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vm:write_to_map()
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local chunk_generation_time = math.ceil((os.clock() - t_start) * 1000) --grab how long it took
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if chunk_generation_time < 1000 then
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minetest.log("info", "[df_caverns] oil sea mapblock generation took "..chunk_generation_time.." ms") --tell people how long
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else
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minetest.log("warning", "[df_caverns] oil sea took "..chunk_generation_time.." ms to generate map block "
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.. minetest.pos_to_string(minp) .. minetest.pos_to_string(maxp))
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end
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end)
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minetest.register_ore({
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ore_type = "scatter",
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ore = "mine_gas:gas_seep",
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wherein = "default:stone",
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clust_scarcity = 32 * 32 * 32,
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clust_num_ores = 27,
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clust_size = 6,
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y_max = df_caverns.config.sunless_sea_min,
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y_min = y_min,
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}) |