mcl_structures.registered_structures = {} local disabled_structures = minetest.settings:get("mcl_disabled_structures") if disabled_structures then disabled_structures = disabled_structures:split(",") else disabled_structures = {} end local peaceful = minetest.settings:get_bool("only_peaceful_mobs", false) local mob_cap_player = tonumber(minetest.settings:get("mcl_mob_cap_player")) or 75 local mob_cap_animal = tonumber(minetest.settings:get("mcl_mob_cap_animal")) or 10 local logging = minetest.settings:get_bool("mcl_logging_structures",true) local mg_name = minetest.get_mapgen_setting("mg_name") local rotations = { "0", "90", "180", "270" } function mcl_structures.is_disabled(structname) return table.indexof(disabled_structures,structname) ~= -1 end local function ecb_place(blockpos, action, calls_remaining, param) if calls_remaining >= 1 then return end minetest.place_schematic(param.pos, param.schematic, param.rotation, param.replacements, param.force_placement, param.flags) if param.after_placement_callback and param.p1 and param.p2 then param.after_placement_callback(param.p1, param.p2, param.size, param.rotation, param.pr, param.callback_param) end end function mcl_structures.place_schematic(pos, schematic, rotation, replacements, force_placement, flags, after_placement_callback, pr, callback_param) if type(schematic) ~= "table" and not mcl_util.file_exists(schematic) then minetest.log("warning","[mcl_structures] schematic file "..tostring(schematic).." does not exist.") return end local s = loadstring(minetest.serialize_schematic(schematic, "lua", {lua_use_comments = false, lua_num_indent_spaces = 0}) .. " return schematic")() if s and s.size then local x, z = s.size.x, s.size.z if rotation then if rotation == "random" and pr then rotation = rotations[pr:next(1,#rotations)] end if rotation == "random" then x = math.max(x, z) z = x elseif rotation == "90" or rotation == "270" then x, z = z, x end end local p1 = {x=pos.x , y=pos.y , z=pos.z } local p2 = {x=pos.x+x-1, y=pos.y+s.size.y-1, z=pos.z+z-1} minetest.log("verbose", "[mcl_structures] size=" ..minetest.pos_to_string(s.size) .. ", rotation=" .. tostring(rotation) .. ", emerge from "..minetest.pos_to_string(p1) .. " to " .. minetest.pos_to_string(p2)) local param = {pos=vector.new(pos), schematic=s, rotation=rotation, replacements=replacements, force_placement=force_placement, flags=flags, p1=p1, p2=p2, after_placement_callback = after_placement_callback, size=vector.new(s.size), pr=pr, callback_param=callback_param} minetest.emerge_area(p1, p2, ecb_place, param) return true end end function mcl_structures.get_struct(file) local localfile = modpath.."/schematics/"..file local file, errorload = io.open(localfile, "rb") if errorload then minetest.log("error", "[mcl_structures] Could not open this struct: "..localfile) return nil end local allnode = file:read("*a") file:close() return allnode end -- Call on_construct on pos. -- Useful to init chests from formspec. local function init_node_construct(pos) local node = minetest.get_node(pos) local def = minetest.registered_nodes[node.name] if def and def.on_construct then def.on_construct(pos) return true end return false end mcl_structures.init_node_construct = init_node_construct function mcl_structures.fill_chests(p1,p2,loot,pr) for it,lt in pairs(loot) do local nodes = minetest.find_nodes_in_area(p1, p2, it) for _,p in pairs(nodes) do local lootitems = mcl_loot.get_multi_loot(lt, pr) mcl_structures.init_node_construct(p) local meta = minetest.get_meta(p) local inv = meta:get_inventory() mcl_loot.fill_inventory(inv, "main", lootitems, pr) end end end local function generate_loot(pos, def, pr) local hl = def.sidelen local p1 = vector.offset(pos,-hl,-hl,-hl) local p2 = vector.offset(pos,hl,hl,hl) if def.loot then mcl_structures.fill_chests(p1,p2,def.loot,pr) end end function mcl_structures.construct_nodes(p1,p2,nodes) local nn=minetest.find_nodes_in_area(p1,p2,nodes) for _,p in pairs(nn) do mcl_structures.init_node_construct(p) end end local function construct_nodes(pos,def,pr) return mcl_structures.construct_nodes(vector.offset(pos,-def.sidelen/2,0,-def.sidelen/2),vector.offset(pos,def.sidelen/2,def.sidelen,def.sidelen/2),def.construct_nodes) end function mcl_structures.find_lowest_y(pp) local y = 31000 for _,p in pairs(pp) do if p.y < y then y = p.y end end return y end function mcl_structures.find_highest_y(pp) local y = -31000 for _,p in pairs(pp) do if p.y > y then y = p.y end end return y end local function smooth_cube(nn,pos,plane,amnt) local r = {} local amnt = amnt or 9 table.sort(nn,function(a, b) if false or plane then return vector.distance(vector.new(pos.x,0,pos.z), vector.new(a.x,0,a.z)) < vector.distance(vector.new(pos.x,0,pos.z), vector.new(b.x,0,b.z)) else return vector.distance(pos, a) < vector.distance(pos, b) end end) for i=1,math.max(1,#nn-amnt) do table.insert(r,nn[i]) end return r end local function find_ground(pos,nn,gn) local r = 0 for _,v in pairs(nn) do local p=vector.new(v) repeat local n = minetest.get_node(p).name p = vector.offset(p,0,-1,0) until not n or n == "mcl_core:bedrock" or n == "ignore" or n == gn --minetest.log(tostring(pos.y - p.y)) if pos.y - p.y > r then r = pos.y - p.y end end return r end local function get_foundation_nodes(ground_p1,ground_p2,pos,sidelen,node_stone) local replace = {"air","group:liquid","mcl_core:snow","group:tree","group:leaves","group:plant","grass_block","group:dirt"} local depth = find_ground(pos,minetest.find_nodes_in_area(ground_p1,ground_p2,replace),node_stone) local nn = smooth_cube(minetest.find_nodes_in_area(vector.offset(ground_p1,0,-1,0),vector.offset(ground_p2,0,-depth,0),replace),vector.offset(pos,0,-depth,0),true,sidelen * 64) local stone = {} local filler = {} local top = {} local dust = {} for l,v in pairs(nn) do if v.y == ground_p1.y - 1 then table.insert(filler,v) table.insert(top,vector.offset(v,0,1,0)) table.insert(dust,vector.offset(v,0,2,0)) elseif v.y < ground_p1.y -1 and v.y > ground_p2.y -4 then table.insert(filler,v) elseif v.y < ground_p2.y - 3 and v.y > ground_p2.y -5 then if math.random(3) == 1 then table.insert(filler,v) else table.insert(stone,v) end else table.insert(stone,v) end end return stone,filler,top,dust end local function foundation(ground_p1,ground_p2,pos,sidelen) local node_stone = "mcl_core:stone" local node_filler = "mcl_core:dirt" local node_top = "mcl_core:dirt_with_grass" or minetest.get_node(ground_p1).name local node_dust = nil if mg_name ~= "v6" then local b = minetest.registered_biomes[minetest.get_biome_name(minetest.get_biome_data(pos).biome)] --minetest.log(dump(b.node_top)) if b then if b.node_top then node_top = b.node_top end if b.node_filler then node_filler = b.node_filler end if b.node_stone then node_stone = b.node_stone end if b.node_dust then node_dust = b.node_dust end end end local stone,filler,top,dust = get_foundation_nodes(ground_p1,ground_p2,pos,sidelen,node_stone) minetest.bulk_set_node(top,{name=node_top},node_stone) if node_dust then minetest.bulk_set_node(dust,{name=node_dust}) end minetest.bulk_set_node(filler,{name=node_filler}) minetest.bulk_set_node(stone,{name=node_stone}) end function mcl_structures.spawn_mobs(mob,spawnon,p1,p2,pr,n,water) n = n or 1 local sp = {} if water then local nn = minetest.find_nodes_in_area(p1,p2,spawnon) for k,v in pairs(nn) do if minetest.get_item_group(minetest.get_node(vector.offset(v,0,1,0)).name,"water") > 0 then table.insert(sp,v) end end else sp = minetest.find_nodes_in_area_under_air(p1,p2,spawnon) end table.shuffle(sp) for i,node in pairs(sp) do if not peaceful and i <= n then local pos = vector.offset(node,0,1,0) if pos then minetest.add_entity(pos,mob) end end minetest.get_meta(node):set_string("spawnblock","yes") end end function mcl_structures.place_structure(pos, def, pr, blockseed, rot) if not def then return end if not rot then rot = "random" end local log_enabled = logging and not def.terrain_feature local y_offset = 0 if type(def.y_offset) == "function" then y_offset = def.y_offset(pr) elseif def.y_offset then y_offset = def.y_offset end local pp = vector.offset(pos,0,y_offset,0) if def.solid_ground and def.sidelen then local ground_p1 = vector.offset(pos,-def.sidelen/2,-1,-def.sidelen/2) local ground_p2 = vector.offset(pos,def.sidelen/2,-1,def.sidelen/2) local solid = minetest.find_nodes_in_area(ground_p1,ground_p2,{"group:solid"}) if #solid < ( def.sidelen * def.sidelen ) then if def.make_foundation then foundation(vector.offset(pos,-def.sidelen/2 - 3,-1,-def.sidelen/2 - 3),vector.offset(pos,def.sidelen/2 + 3,-1,def.sidelen/2 + 3),pos,def.sidelen) else if log_enabled then minetest.log("warning","[mcl_structures] "..def.name.." at "..minetest.pos_to_string(pp).." not placed. No solid ground.") end return false end end end if def.on_place and not def.on_place(pos,def,pr,blockseed) then if log_enabled then minetest.log("warning","[mcl_structures] "..def.name.." at "..minetest.pos_to_string(pp).." not placed. Conditions not satisfied.") end return false end if def.filenames then if #def.filenames <= 0 then return false end local r = pr:next(1,#def.filenames) local file = def.filenames[r] if file then local rot = rotations[pr:next(1,#rotations)] local ap = function(pos,def,pr,blockseed) end if def.daughters then ap = function(pos,def,pr,blockseed) for _,d in pairs(def.daughters) do local p = vector.add(pos,d.pos) local rot = d.rot or 0 mcl_structures.place_schematic(p, d.files[pr:next(1,#d.files)], rot, nil, true, "place_center_x,place_center_z",function() if def.loot then generate_loot(pp,def,pr,blockseed) end if def.construct_nodes then construct_nodes(pp,def,pr,blockseed) end if def.after_place then def.after_place(pos,def,pr) end end,pr) end end elseif def.after_place then ap = def.after_place end mcl_structures.place_schematic(pp, file, rot, def.replacements, true, "place_center_x,place_center_z",function(p1, p2, size, rotation) if not def.daughters then if def.loot then generate_loot(pp,def,pr,blockseed) end if def.construct_nodes then construct_nodes(pp,def,pr,blockseed) end end return ap(pp,def,pr,blockseed,p1,p2,size,rotation) end,pr) if log_enabled then minetest.log("action","[mcl_structures] "..def.name.." placed at "..minetest.pos_to_string(pp)) end return true end elseif def.place_func and def.place_func(pp,def,pr,blockseed) then if not def.after_place or ( def.after_place and def.after_place(pp,def,pr,blockseed) ) then if def.loot then generate_loot(pp,def,pr,blockseed) end if def.construct_nodes then construct_nodes(pp,def,pr,blockseed) end if log_enabled then minetest.log("action","[mcl_structures] "..def.name.." placed at "..minetest.pos_to_string(pp)) end return true end end if log_enabled then minetest.log("warning","[mcl_structures] placing "..def.name.." failed at "..minetest.pos_to_string(pos)) end end function mcl_structures.register_structure(name,def,nospawn) --nospawn means it will be placed by another (non-nospawn) structure that contains it's structblock i.e. it will not be placed by mapgen directly if mcl_structures.is_disabled(name) then return end local structblock = "mcl_structures:structblock_"..name local flags = "place_center_x, place_center_z, force_placement" local y_offset = 0 local sbgroups = { structblock = 1, not_in_creative_inventory=1 } if def.flags then flags = def.flags end def.name = name if nospawn then sbgroups.structblock = nil sbgroups.structblock_lbm = 1 else if def.place_on then minetest.register_on_mods_loaded(function() --make sure all previous decorations and biomes have been registered def.deco = minetest.register_decoration({ name = "mcl_structures:deco_"..name, decoration = structblock, deco_type = "simple", place_on = def.place_on, spawn_by = def.spawn_by, num_spawn_by = def.num_spawn_by, sidelen = 80, fill_ratio = def.fill_ratio, noise_params = def.noise_params, flags = flags, biomes = def.biomes, y_max = def.y_max, y_min = def.y_min }) minetest.register_node(":"..structblock, {drawtype="airlike", walkable = false, pointable = false,groups = sbgroups,sunlight_propagates = true,}) def.structblock = structblock def.deco_id = minetest.get_decoration_id("mcl_structures:deco_"..name) minetest.set_gen_notify({decoration=true}, { def.deco_id }) --catching of gennotify happens in mcl_mapgen_core end) end end mcl_structures.registered_structures[name] = def end local structure_spawns = {} function mcl_structures.register_structure_spawn(def) --name,y_min,y_max,spawnon,biomes,chance,interval,limit minetest.register_abm({ label = "Spawn "..def.name, nodenames = def.spawnon, min_y = def.y_min or -31000, max_y = def.y_max or 31000, interval = def.interval or 60, chance = def.chance or 5, action = function(pos, node, active_object_count, active_object_count_wider) local limit = def.limit or 7 if active_object_count_wider > limit + mob_cap_animal then return end if active_object_count_wider > mob_cap_player then return end local p = vector.offset(pos,0,1,0) if minetest.get_node(p).name ~= "air" then return end if minetest.get_meta(pos):get_string("spawnblock") == "" then return end if mg_name ~= "v6" and mg_name ~= "singlenode" and def.biomes then if table.indexof(def.biomes,minetest.get_biome_name(minetest.get_biome_data(p).biome)) == -1 then return end end local mobdef = minetest.registered_entities[def.name] if mobdef.can_spawn and not mobdef.can_spawn(p) then return end minetest.add_entity(p,def.name) end, }) end --lbm for secondary structures (structblock included in base structure) minetest.register_lbm({ name = "mcl_structures:struct_lbm", run_at_every_load = true, nodenames = {"group:structblock_lbm"}, action = function(pos, node) minetest.remove_node(pos) local name = node.name:gsub("mcl_structures:structblock_","") local def = mcl_structures.registered_structures[name] if not def then return end mcl_structures.place_structure(pos) end })