forked from MineClone5/MineClone5
414 lines
14 KiB
Lua
414 lines
14 KiB
Lua
local modname = minetest.get_current_modname()
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local S = minetest.get_translator(modname)
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local modpath = minetest.get_modpath(modname)
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local name_prefix = "mcl_structures:"
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mcl_structures = {}
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local rotations = {
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"0",
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"90",
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"180",
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"270"
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}
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local registered_structures = {}
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local use_process_mapgen_block_lvm = false
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local use_process_mapgen_chunk = false
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local on_finished_block_callbacks = {}
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local on_finished_chunk_callbacks = {}
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local noise_params = {
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offset = 0,
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scale = 1,
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spread = {
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x = mcl_mapgen.CS_NODES,
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y = mcl_mapgen.CS_NODES,
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z = mcl_mapgen.CS_NODES,
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},
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seed = 329,
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octaves = 1,
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persistence = 0.6,
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}
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local perlin_noise
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local get_perlin_noise_level = function(minp)
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perlin_noise = perlin_noise or minetest.get_perlin(noise_params)
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return perlin_noise:get_3d(minp)
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end
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mcl_structures.get_perlin_noise_level = get_perlin_noise_level
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local spawnstruct_hint = S("Use /help spawnstruct to see a list of avaiable types.")
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local function dir_to_rotation(dir)
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local ax, az = math.abs(dir.x), math.abs(dir.z)
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if ax > az then
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if dir.x < 0 then
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return "270"
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end
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return "90"
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end
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if dir.z < 0 then
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return "180"
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end
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return "0"
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end
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local function spawnstruct_function(name, param)
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local player = minetest.get_player_by_name(name)
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if not player then return end
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if param == "" then
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minetest.chat_send_player(name, S("Error: No structure type given. Please use “/spawnstruct <type>”."))
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minetest.chat_send_player(name, spawnstruct_hint)
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return
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end
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local struct = registered_structures[param]
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if not struct then
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struct = registered_structures[name_prefix .. param]
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end
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if not struct then
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minetest.chat_send_player(name, S("Error: Unknown structure type. Please use “/spawnstruct <type>”."))
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minetest.chat_send_player(name, spawnstruct_hint)
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return
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end
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local place = struct.place_function
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if not place then return end
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local pos = player:get_pos()
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if not pos then return end
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pos.y = math.floor(pos.y) + 1
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local pr = PseudoRandom(math.floor(pos.x * 333 + pos.y * 19 - pos.z + 4))
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pos = vector.round(pos)
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local dir = minetest.yaw_to_dir(player:get_look_horizontal())
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local rot = dir_to_rotation(dir)
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place(pos, rot, pr, player)
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minetest.chat_send_player(name, S("Structure placed."))
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end
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local function update_spawnstruct_chatcommand()
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local spawnstruct_params = ""
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for _, registered_structure in pairs(registered_structures) do
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if spawnstruct_params ~= "" then
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spawnstruct_params = spawnstruct_params .. " | "
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end
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spawnstruct_params = spawnstruct_params .. registered_structure.short_name
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end
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local def = {
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params = spawnstruct_params,
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description = S("Generate a pre-defined structure near your position."),
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privs = {debug = true},
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func = spawnstruct_function,
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}
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local registered_chatcommands = minetest.registered_chatcommands
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if registered_chatcommands["spawnstruct"] then
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minetest.override_chatcommand("spawnstruct", def)
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else
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minetest.register_chatcommand("spawnstruct", def)
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end
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end
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function process_mapgen_block_lvm(vm_context)
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local nodes = minetest.find_nodes_in_area(vm_context.minp, vm_context.maxp, {"group:struct"}, true)
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for node_name, pos_list in pairs(nodes) do
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local lvm_callback = on_finished_block_callbacks[node_name]
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if lvm_callback then
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lvm_callback(vm_context, pos_list)
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end
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end
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end
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function process_mapgen_chunk(minp, maxp, seed, vm_context)
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local nodes = minetest.find_nodes_in_area(minp, maxp, {"group:struct"}, true)
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for node_name, pos_list in pairs(nodes) do
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local chunk_callback = on_finished_chunk_callbacks[node_name]
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if chunk_callback then
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chunk_callback(minp, maxp, seed, vm_context, pos_list)
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end
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end
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for node_name, pos_list in pairs(nodes) do
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for _, pos in pairs(pos_list) do
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local node = minetest.get_node(pos)
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if string.sub(node.name, 1, 15) == 'mcl_structures:' then
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minetest.swap_node(pos, {name = 'air'})
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end
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end
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end
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end
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--------------------------------------------------------------------------------------
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-- mcl_structures.register_structure(struct_def)
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-- struct_def:
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-- name - name, like 'desert_temple'
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-- decoration - decoration definition, to use as structure seed (thanks cora for the idea)
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-- on_finished_block - callback, if needed, to use with decorations: funcion(vm_context, pos_list)
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-- on_finished_chunk - next callback if needed: funcion(minp, maxp, seed, vm_context, pos_list)
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-- place_function - callback to place schematic by /spawnstruct debug command: function(pos, rotation, pr, placer)
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-- on_placed - useful when you want to process the area after placement: function(pos, rotation, pr, size)
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function mcl_structures.register_structure(def)
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local short_name = def.name
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local name = "mcl_structures:" .. short_name
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local decoration = def.decoration
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local on_finished_block = def.on_finished_block
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local on_finished_chunk = def.on_finished_chunk
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local place_function = def.place_function
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if not name then
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minetest.log('warning', 'Structure name is not passed for registration - ignoring')
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return
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end
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if registered_structures[name] then
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minetest.log('warning', 'Structure '..name..' is already registered - owerwriting')
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end
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local decoration_id
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if decoration then
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minetest.register_node(':' .. name, {
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drawtype = "airlike",
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sunlight_propagates = true,
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pointable = false,
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walkable = false,
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diggable = false,
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buildable_to = true,
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groups = {
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struct = 1,
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not_in_creative_inventory = 1,
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},
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})
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decoration_id = minetest.register_decoration({
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deco_type = decoration.deco_type,
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place_on = decoration.place_on,
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sidelen = decoration.sidelen,
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fill_ratio = decoration.fill_ratio,
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noise_params = decoration.noise_params,
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biomes = decoration.biomes,
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y_min = decoration.y_min,
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y_max = decoration.y_max,
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spawn_by = decoration.spawn_by,
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num_spawn_by = decoration.num_spawn_by,
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flags = decoration.flags,
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decoration = name,
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height = decoration.height,
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height_max = decoration.height_max,
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param2 = decoration.param2,
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param2_max = decoration.param2_max,
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place_offset_y = decoration.place_offset_y,
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schematic = decoration.schematic,
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replacements = decoration.replacements,
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flags = decoration.flags,
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rotation = decoration.rotation,
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})
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end
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registered_structures[name] = {
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place_function = place_function,
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on_finished_block = on_finished_block,
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on_finished_chunk = on_finished_chunk,
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decoration_id = decoration_id,
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short_name = short_name,
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}
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update_spawnstruct_chatcommand()
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if on_finished_block then
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on_finished_block_callbacks[name] = on_finished_block
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if not use_process_mapgen_block_lvm then
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use_process_mapgen_block_lvm = true
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mcl_mapgen.register_mapgen_block_lvm(process_mapgen_block_lvm, mcl_mapgen.order.BUILDINGS)
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end
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end
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if on_finished_chunk then
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on_finished_chunk_callbacks[name] = on_finished_chunk
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if not use_process_mapgen_chunk then
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use_process_mapgen_chunk = true
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mcl_mapgen.register_mapgen(process_mapgen_chunk, mcl_mapgen.order.BUILDINGS)
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end
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end
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end
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-- It doesN'T remove registered node and decoration!
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function mcl_structures.unregister_structure(name)
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if not registered_structures[name] then
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minetest.log('warning','Structure '..name..' is not registered - skipping')
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return
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end
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registered_structures[name] = nil
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end
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local function ecb_place(blockpos, action, calls_remaining, param)
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if calls_remaining >= 1 then return end
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local pos = param.pos
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local rotation = param.rotation
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minetest.place_schematic(pos, param.schematic, rotation, param.replacements, param.force_placement, param.flags)
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local on_placed = param.on_placed
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if not on_placed then
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return
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end
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on_placed(pos, rotation, param.pr, param.size)
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end
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function mcl_structures.place_schematic(def)
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local pos = def.pos
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local schematic = def.schematic
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local rotation = def.rotation
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local pr = def.pr
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local on_placed = def.on_placed -- on_placed(pos, rotation, pr, size)
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local emerge = def.emerge
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if not pos then
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minetest.log('warning', '[mcl_structures] No pos. specified to place schematic')
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return
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end
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if not schematic then
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minetest.log('warning', '[mcl_structures] No schematic specified to place at ' .. minetest.pos_to_string(pos))
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return
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end
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if not rotation or rotation == 'random' then
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if pr then
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rotation = rotations[pr:next(1,#rotations)]
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else
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rotation = rotations[math.random(1,#rotations)]
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end
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end
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if not emerge and not on_placed then
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minetest.place_schematic(pos, schematic, rotation, def.replacements, def.force_placement, def.flags)
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return
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end
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local serialized_schematic = minetest.serialize_schematic(schematic, "lua", {lua_use_comments = false, lua_num_indent_spaces = 0}) .. " return schematic"
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local loaded_schematic = loadstring(serialized_schematic)()
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if not loaded_schematic then
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minetest.log('warning', '[mcl_structures] Schematic ' .. schematic .. ' load serialized string problem at ' .. minetest.pos_to_string(pos))
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return
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end
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local size = loaded_schematic.size
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if not size then
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minetest.log('warning', '[mcl_structures] Schematic ' .. schematic .. ' has no size at ' .. minetest.pos_to_string(pos))
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return
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end
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local size_x, size_y, size_z = size.x, size.y, size.z
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if rotation == "90" or rotation == "270" then
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size_x, size_z = size_z, size_x
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end
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local x, y, z = pos.x, pos.y, pos.z
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local p1 = {x = x, y = y, z = z}
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local p2 = {x = x + size_x - 1, y = y + size_y - 1, z = size_z - 1}
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local ecb_param = {
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pos = vector.new(pos),
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schematic = loaded_schematic,
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rotation = rotation,
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replacements = def.replacements,
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force_placement = def.force_placement,
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flags = def.flags,
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size = vector.new(size),
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pr = pr,
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on_placed = on_placed,
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}
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if not emerge then
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ecb_place(p1, nil, 0, ecb_param)
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return
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end
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minetest.log("verbose", "[mcl_structures] Emerge area " .. minetest.pos_to_string(p1) .. " - " .. minetest.pos_to_string(p2)
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.. " of size " ..minetest.pos_to_string(size) .. " to place " .. schematic .. ", rotation " .. tostring(rotation))
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minetest.emerge_area(p1, p2, ecb_place, ecb_param)
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end
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function mcl_structures.get_struct(file)
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local localfile = modpath.."/schematics/"..file
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local file, errorload = io.open(localfile, "rb")
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if errorload then
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minetest.log("error", "[mcl_structures] Could not open this struct: "..localfile)
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return nil
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end
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local allnode = file:read("*a")
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file:close()
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return allnode
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end
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-- Call on_construct on pos.
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-- Useful to init chests from formspec.
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function mcl_structures.init_node_construct(pos)
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local node = minetest.get_node(pos)
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local def = minetest.registered_nodes[node.name]
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if def and def.on_construct then
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def.on_construct(pos)
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return true
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end
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return false
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end
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-- The call of Struct
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function mcl_structures.call_struct(pos, struct_style, rotation, pr, callback)
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minetest.log("action","[mcl_structures] call_struct " .. struct_style.." at "..minetest.pos_to_string(pos))
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if not rotation then
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rotation = "random"
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end
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if struct_style == "boulder" then
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return mcl_structures.generate_boulder(pos, rotation, pr)
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elseif struct_style == "end_exit_portal" then
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return mcl_structures.generate_end_exit_portal(pos, rotation, pr, callback)
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elseif struct_style == "end_exit_portal_open" then
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return mcl_structures.generate_end_exit_portal_open(pos, rotation)
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elseif struct_style == "end_gateway_portal" then
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return mcl_structures.generate_end_gateway_portal(pos, rotation)
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elseif struct_style == "end_portal_shrine" then
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return mcl_structures.generate_end_portal_shrine(pos, rotation, pr)
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elseif struct_style == "end_portal" then
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return mcl_structures.generate_end_portal(pos, rotation, pr)
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end
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end
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function mcl_structures.generate_end_portal(pos, rotation, pr)
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-- todo: proper facedir
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local x0, y0, z0 = pos.x - 2, pos.y, pos.z - 2
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for x = 0, 4 do
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for z = 0, 4 do
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if x % 4 == 0 or z % 4 == 0 then
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if x % 4 ~= 0 or z % 4 ~= 0 then
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minetest.swap_node({x = x0 + x, y = y0, z = z0 + z}, {name = "mcl_portals:end_portal_frame_eye"})
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end
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else
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minetest.swap_node({x = x0 + x, y = y0, z = z0 + z}, {name = "mcl_portals:portal_end"})
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end
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end
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end
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end
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function mcl_structures.generate_boulder(pos, rotation, pr)
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-- Choose between 2 boulder sizes (2×2×2 or 3×3×3)
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local r = pr:next(1, 10)
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local path
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if r <= 3 then
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path = modpath.."/schematics/mcl_structures_boulder_small.mts"
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else
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path = modpath.."/schematics/mcl_structures_boulder.mts"
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end
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local newpos = {x=pos.x,y=pos.y-1,z=pos.z}
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return minetest.place_schematic(newpos, path, rotation) -- don't serialize schematics for registered biome decorations, for MT 5.4.0, https://github.com/minetest/minetest/issues/10995
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end
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function mcl_structures.generate_end_exit_portal(pos, rot, pr, callback)
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local path = modpath.."/schematics/mcl_structures_end_exit_portal.mts"
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return mcl_structures.place_schematic(pos, path, rot or "0", {["mcl_portals:portal_end"] = "air"}, true, nil, callback)
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end
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function mcl_structures.generate_end_exit_portal_open(pos, rot)
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local path = modpath.."/schematics/mcl_structures_end_exit_portal.mts"
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return mcl_structures.place_schematic(pos, path, rot or "0", nil, true)
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end
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function mcl_structures.generate_end_gateway_portal(pos, rot)
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local path = modpath.."/schematics/mcl_structures_end_gateway_portal.mts"
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return mcl_structures.place_schematic(pos, path, rot or "0", nil, true)
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end
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local chunk_square = mcl_mapgen.CS_NODES * mcl_mapgen.CS_NODES
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local block_square = mcl_mapgen.BS * mcl_mapgen.BS
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function mcl_structures.from_16x16_to_chunk_inverted_chance(x)
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return math.floor(x * 256 / chunk_square + 0.5)
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end
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function mcl_structures.from_16x16_to_block_inverted_chance(x)
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return math.floor(x * 256 / block_square + 0.5)
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end
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dofile(modpath .. "/structures.lua")
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