83 lines
2.7 KiB
Lua
83 lines
2.7 KiB
Lua
-- surface tunnels
|
|
|
|
local y_max = 200
|
|
local y_min = df_caverns.config.ymax
|
|
|
|
local c_stone = minetest.get_content_id("default:stone")
|
|
local c_air = minetest.get_content_id("air")
|
|
|
|
minetest.register_on_generated(function(minp, maxp, seed)
|
|
--if out of range of cave definition limits, abort
|
|
if minp.y > y_max or maxp.y < y_min then
|
|
return
|
|
end
|
|
|
|
local t_start = os.clock()
|
|
|
|
local vm, data, data_param2, area = mapgen_helper.mapgen_vm_data_param2()
|
|
|
|
local eminp = {x=minp.x, y=area.MinEdge.y, z=minp.z}
|
|
local emaxp = {x=maxp.x, y=area.MaxEdge.y, z=maxp.z}
|
|
local minp_y = minp.y
|
|
local maxp_y = maxp.y
|
|
|
|
local humiditymap = minetest.get_mapgen_object("humiditymap")
|
|
local nvals_cracks = mapgen_helper.perlin2d("df_cavern:cracks", minp, maxp, df_caverns.np_cracks)
|
|
|
|
local previous_y = eminp.y-1
|
|
|
|
local previous_potential_floor_vi
|
|
local previous_potential_floor_y
|
|
local previous_node
|
|
|
|
for vi, x, y, z in area:iterp_yxz(eminp, emaxp) do
|
|
|
|
if y < previous_y then
|
|
-- we've started a new column, initialize everything
|
|
previous_potential_floor_vi = nil
|
|
previous_potential_floor_y = nil
|
|
previous_node = nil
|
|
end
|
|
previous_y = y
|
|
|
|
local current_node = data[vi]
|
|
if previous_node and y < y_max then
|
|
if current_node == c_air and previous_node == c_stone then
|
|
-- this may be a floor, but only if we eventually hit a ceiling in this column
|
|
previous_potential_floor_vi = vi-area.ystride
|
|
previous_potential_floor_y = y-1
|
|
elseif current_node == c_stone and previous_node == c_air and previous_potential_floor_vi then
|
|
-- we hit a ceiling after passing through a floor
|
|
local index2d = mapgen_helper.index2d(minp, maxp, x, z)
|
|
local humidity = humiditymap[index2d]
|
|
if previous_potential_floor_y <= maxp_y and previous_potential_floor_y >= minp_y then
|
|
df_caverns.tunnel_floor(minp, maxp, area, previous_potential_floor_vi, nvals_cracks, data, data_param2, humidity > 30)
|
|
end
|
|
if y <= maxp_y and y >= minp_y then
|
|
df_caverns.tunnel_ceiling(minp, maxp, area, vi, nvals_cracks, data, data_param2, humidity > 30)
|
|
end
|
|
previous_potential_floor_vi = nil
|
|
elseif not mapgen_helper.buildable_to(current_node) then
|
|
-- we've entered a non-stone ceiling of some kind. Abort potential floor-ceiling pair detection.
|
|
previous_potential_floor_vi = nil
|
|
end
|
|
end
|
|
previous_node = current_node
|
|
|
|
end
|
|
|
|
--send data back to voxelmanip
|
|
vm:set_data(data)
|
|
vm:set_param2_data(data_param2)
|
|
--calc lighting
|
|
vm:set_lighting({day = 0, night = 0})
|
|
vm:calc_lighting()
|
|
|
|
vm:update_liquids()
|
|
--write it to world
|
|
vm:write_to_map()
|
|
|
|
local time_taken = os.clock() - t_start -- how long this chunk took, in seconds
|
|
mapgen_helper.record_time("df_caverns surface tunnels", time_taken)
|
|
end)
|