VoxeLibre/mods/MAPGEN/mcl_villages/init.lua

-- eclipse debugging lines
--require("debugger")(idehost, ideport, idekey)

--zerobrane debugging lines
--package.cpath = package.cpath .. ";/usr/share/lua/5.2/?.so"
--package.path = package.path .. ";/usr/share/zbstudio/lualibs/mobdebug/?.lua"
--require('mobdebug').start()

settlements = {}
settlements.modpath = minetest.get_modpath("mcl_villages");

dofile(settlements.modpath.."/const.lua")
dofile(settlements.modpath.."/utils.lua")
dofile(settlements.modpath.."/foundation.lua")
dofile(settlements.modpath.."/buildings.lua")
dofile(settlements.modpath.."/paths.lua")
dofile(settlements.modpath.."/convert_lua_mts.lua")
--
-- load settlements on server
--
settlements_in_world = settlements.load()
settlements.grundstellungen()

--[[ Disable custom node spawning.
--
-- register block for npc spawn
--
minetest.register_node("settlements:junglewood", {
    description = "special junglewood floor",
    tiles = {"default_junglewood.png"},
    groups = {choppy=3, wood=2},
    sounds = default.node_sound_wood_defaults(),
  })

--]]


--[[ Enable for testing, but use MineClone2's own spawn code if/when merging.
--
-- register inhabitants
--
if minetest.get_modpath("mobs_mc") ~= nil then
  mobs:register_spawn("mobs_mc:villager", --name
    {"mcl_core:stonebrickcarved"}, --nodes
    15, --max_light
    0, --min_light
    20, --chance
    7, --active_object_count
    31000, --max_height
    nil) --day_toggle
end 
--]]

--
-- on map generation, try to build a settlement
--
local function build_a_settlement_no_delay(minp, maxp, blockseed)
	local settlement_info
	local pr = PseudoRandom(blockseed)
	--
	-- fill settlement_info with buildings and their data
	--
	if settlements.lvm == true then
		-- get LVM of current chunk
		local vm, data, va, emin, emax = settlements.getlvm(minp, maxp)
		settlement_info = settlements.create_site_plan_lvm(maxp, minp, pr)
	else
		settlement_info = settlements.create_site_plan(maxp, minp, pr)
	end
	if not settlement_info then return end

	-- evaluate settlement_info and prepair terrain
	if settlements.lvm == true then
		settlements.terraform_lvm(settlement_info, pr)
	else
		settlements.terraform(settlement_info, pr)
	end

	-- evaluate settlement_info and build paths between buildings
	if settlements.lvm == true then
		settlements.paths_lvm(settlement_info, minp)
	else
		settlements.paths(settlement_info)
	end

	-- evaluate settlement_info and place schematics
	if settlements.lvm == true then
		vm:set_data(data)
		settlements.place_schematics_lvm(settlement_info, pr)
		vm:write_to_map(true)
	else
		settlements.place_schematics(settlement_info, pr)
	end

	-- evaluate settlement_info and initialize furnaces and chests
	settlements.initialize_nodes(settlement_info, pr)
end

local function ecb_build_a_settlement(blockpos, action, calls_remaining, param)
	if calls_remaining <= 0 then
		build_a_settlement_no_delay(param.minp, param.maxp, param.blockseed)
	end
end

minetest.register_on_generated(function(minp, maxp, blockseed)
	-- needed for manual and automated settlement building
	local heightmap = minetest.get_mapgen_object("heightmap")

	-- randomly try to build settlements
	if blockseed % 77 ~= 17 then return end

	-- don't build settlement underground
	if maxp.y < 0 then return end

	-- don't build settlements too close to each other
	local center_of_chunk = { 
		x=maxp.x-half_map_chunk_size, 
		y=maxp.y-half_map_chunk_size, 
		z=maxp.z-half_map_chunk_size
	} 
	local dist_ok = settlements.check_distance_other_settlements(center_of_chunk)
	if dist_ok == false then return end

	-- don't build settlements on (too) uneven terrain
	local height_difference = settlements.evaluate_heightmap(minp, maxp)
	if height_difference > max_height_difference then return end

	minetest.emerge_area(vector.subtract(minp,24), vector.add(maxp,24), ecb_build_a_settlement, {minp = vector.new(minp), maxp=vector.new(maxp), blockseed=blockseed})
	-- old way - wait 3 seconds:
	-- minetest.after(3, ecb_build_a_settlement, nil, 1, 0, {minp = vector.new(minp), maxp=vector.new(maxp), blockseed=blockseed})
end)

--
-- manually place buildings, for debugging only
--
minetest.register_craftitem("mcl_villages:tool", {
    description = "mcl_villages build tool",
    inventory_image = "default_tool_woodshovel.png",
    
	--[[ Disable on_use for now.
    -- build single house
    --
    on_use = function(itemstack, placer, pointed_thing)
      local center_surface = pointed_thing.under
      if center_surface then
        local building_all_info = {name = "blacksmith", 
          mts = schem_path.."blacksmith.mts", 
          hsize = 13, 
          max_num = 0.9, 
          rplc = "n"}
        settlements.build_schematic(center_surface, 
          building_all_info["mts"],
          building_all_info["rplc"], 
          building_all_info["name"])

--        settlements.convert_mts_to_lua()
--        settlements.mts_save()
      end
    end,
--]]
    --
    -- build ssettlement
    --
    on_place = function(itemstack, placer, pointed_thing)
		local pr = PseudoRandom(math.rand(0,32767))
      -- enable debug routines
      local center_surface = pointed_thing.under
      if center_surface then
        local minp = {
          x=center_surface.x-half_map_chunk_size, 
          y=center_surface.y-half_map_chunk_size, 
          z=center_surface.z-half_map_chunk_size
        }
        local maxp = {
          x=center_surface.x+half_map_chunk_size, 
          y=center_surface.y+half_map_chunk_size, 
          z=center_surface.z+half_map_chunk_size
        }
        --
        -- get LVM of current chunk
        --
        local vm, data, va, emin, emax = settlements.getlvm(minp, maxp)
        --
        -- fill settlement_info with buildings and their data
        --
        local start_time = os.time()
        local settlement_info
        if settlements.lvm == true then
		settlement_info = settlements.create_site_plan_lvm(maxp, minp, pr)
        else
		settlement_info = settlements.create_site_plan(maxp, minp, pr)
        end
        if not settlement_info then return end
        --
        -- evaluate settlement_info and prepair terrain
        --
        if settlements.lvm == true then
		settlements.terraform_lvm(settlement_info, pr)
        else
		settlements.terraform(settlement_info, pr)
        end

        --
        -- evaluate settlement_info and build paths between buildings
        --
        if settlements.lvm == true then
		settlements.paths_lvm(settlement_info, minp)
        else
		settlements.paths(settlement_info)
        end
        --
        -- evaluate settlement_info and place schematics
        --
        if settlements.lvm == true then
		vm:set_data(data)
		settlements.place_schematics_lvm(pr)
		vm:write_to_map(true)
        else
		settlements.place_schematics()
        end

        --
        -- evaluate settlement_info and initialize furnaces and chests
        --
        settlements.initialize_nodes(settlement_info, pr)
        local end_time = os.time()
        minetest.chat_send_all("Time ".. end_time - start_time)
--
        --settlements.convert_mts_to_lua()
        --settlements.mts_save()

      end
    end
  })