VoxelEngine/res/scripts/stdlib.lua
2025-02-20 19:47:50 +03:00

559 lines
15 KiB
Lua

------------------------------------------------
------ Extended kit of standard functions ------
------------------------------------------------
function sleep(timesec)
local start = time.uptime()
while time.uptime() - start < timesec do
coroutine.yield()
end
end
function tb_frame_tostring(frame)
local s = frame.short_src
if frame.what ~= "C" then
s = s .. ":" .. tostring(frame.currentline)
end
if frame.what == "main" then
s = s .. ": in main chunk"
elseif frame.name then
s = s .. ": in function " .. utf8.escape(frame.name)
end
return s
end
local function complete_app_lib(app)
app.sleep = sleep
app.script = __VC_SCRIPT_NAME
app.new_world = core.new_world
app.open_world = core.open_world
app.save_world = core.save_world
app.close_world = core.close_world
app.reopen_world = core.reopen_world
app.delete_world = core.delete_world
app.reconfig_packs = core.reconfig_packs
app.get_setting = core.get_setting
app.set_setting = core.set_setting
app.tick = coroutine.yield
app.get_version = core.get_version
app.get_setting_info = core.get_setting_info
app.load_content = function()
core.load_content()
app.tick()
end
app.reset_content = core.reset_content
app.is_content_loaded = core.is_content_loaded
function app.config_packs(packs_list)
-- Check if packs are valid and add dependencies to the configuration
packs_list = pack.assemble(packs_list)
local installed = pack.get_installed()
local toremove = {}
for _, packid in ipairs(installed) do
if not table.has(packs_list, packid) then
table.insert(toremove, packid)
end
end
local toadd = {}
for _, packid in ipairs(packs_list) do
if not table.has(installed, packid) then
table.insert(toadd, packid)
end
end
app.reconfig_packs(toadd, toremove)
end
function app.quit()
local tb = debug.get_traceback(1)
local s = "app.quit() traceback:"
for i, frame in ipairs(tb) do
s = s .. "\n\t"..tb_frame_tostring(frame)
end
debug.log(s)
core.quit()
coroutine.yield()
end
function app.sleep_until(predicate, max_ticks)
max_ticks = max_ticks or 1e9
local ticks = 0
while ticks < max_ticks and not predicate() do
app.tick()
ticks = ticks + 1
end
if ticks == max_ticks then
error("max ticks exceed")
end
end
end
if app then
complete_app_lib(app)
elseif __vc_app then
complete_app_lib(__vc_app)
end
function inventory.get_uses(invid, slot)
local uses = inventory.get_data(invid, slot, "uses")
if uses == nil then
return item.uses(inventory.get(invid, slot))
end
return uses
end
function inventory.use(invid, slot)
local itemid, count = inventory.get(invid, slot)
if itemid == nil then
return
end
local item_uses = inventory.get_uses(invid, slot)
if item_uses == nil then
return
end
if item_uses == 1 then
inventory.set(invid, slot, itemid, count - 1)
elseif item_uses > 1 then
inventory.set_data(invid, slot, "uses", item_uses - 1)
end
end
function inventory.decrement(invid, slot, count)
count = count or 1
local itemid, itemcount = inventory.get(invid, slot)
if itemcount <= count then
inventory.set(invid, slot, 0)
else
inventory.set_count(invid, slot, itemcount - count)
end
end
------------------------------------------------
------------------- Events ---------------------
------------------------------------------------
events = {
handlers = {}
}
function events.on(event, func)
if events.handlers[event] == nil then
events.handlers[event] = {}
end
table.insert(events.handlers[event], func)
end
function events.reset(event, func)
if func == nil then
events.handlers[event] = nil
else
events.handlers[event] = {func}
end
end
function events.remove_by_prefix(prefix)
for name, handlers in pairs(events.handlers) do
local actualname = name
if type(name) == 'table' then
actualname = name[1]
end
if actualname:sub(1, #prefix+1) == prefix..':' then
events.handlers[actualname] = nil
end
end
end
function pack.unload(prefix)
events.remove_by_prefix(prefix)
end
function events.emit(event, ...)
local result = nil
local handlers = events.handlers[event]
if handlers == nil then
return nil
end
for _, func in ipairs(handlers) do
local status, newres = xpcall(func, __vc__error, ...)
if not status then
debug.error("error in event ("..event..") handler: "..newres)
else
result = result or newres
end
end
return result
end
gui_util = require "core:internal/gui_util"
Document = gui_util.Document
RadioGroup = gui_util.RadioGroup
__vc_page_loader = gui_util.load_page
_GUI_ROOT = Document.new("core:root")
_MENU = _GUI_ROOT.menu
menu = _MENU
--- Console library extension ---
console.cheats = {}
local log_element = Document.new("core:console").log
function console.log(...)
local args = {...}
local text = ''
for i,v in ipairs(args) do
if i ~= 1 then
text = text..' '..v
else
text = text..v
end
end
log_element.caret = -1
if log_element.caret > 0 then
text = '\n'..text
end
log_element:paste(text)
end
function console.chat(...)
console.log(...)
events.emit("core:chat", ...)
end
function gui.template(name, params)
local text = file.read(file.find("layouts/templates/"..name..".xml"))
for k,v in pairs(params) do
local arg = tostring(v):gsub("'", "\\'"):gsub('"', '\\"')
text = text:gsub("(%%{"..k.."})", arg)
end
text = text:gsub("if%s*=%s*'%%{%w+}'", "if=''")
text = text:gsub("if%s*=%s*\"%%{%w+}\"", "if=\"\"")
-- remove unsolved properties: attr='%{var}'
text = text:gsub("%s*%S+='%%{[^}]+}'%s*", " ")
text = text:gsub('%s*%S+="%%{[^}]+}"%s*', " ")
return text
end
session = {
entries={}
}
function session.get_entry(name)
local entry = session.entries[name]
if entry == nil then
entry = {}
session.entries[name] = entry
end
return entry
end
function session.reset_entry(name)
session.entries[name] = nil
end
stdcomp = require "core:internal/stdcomp"
entities.get = stdcomp.get_Entity
entities.get_all = function(uids)
if uids == nil then
local values = {}
for k,v in pairs(stdcomp.get_all()) do
values[k] = v
end
return values
else
return stdcomp.get_all(uids)
end
end
math.randomseed(time.uptime() * 1536227939)
rules = {nexid = 1, rules = {}}
local _rules = rules
function _rules.get_rule(name)
local rule = _rules.rules[name]
if rule == nil then
rule = {listeners={}}
_rules.rules[name] = rule
end
return rule
end
function _rules.get(name)
local rule = _rules.rules[name]
if rule == nil then
return nil
end
return rule.value
end
function _rules.set(name, value)
local rule = _rules.get_rule(name)
rule.value = value
for _, handler in pairs(rule.listeners) do
handler(value)
end
end
function _rules.reset(name)
local rule = _rules.get_rule(name)
_rules.set(rule.default)
end
function _rules.listen(name, handler)
local rule = _rules.get_rule(name)
local id = _rules.nexid
_rules.nextid = _rules.nexid + 1
rule.listeners[utf8.encode(id)] = handler
return id
end
function _rules.create(name, value, handler)
local rule = _rules.get_rule(name)
rule.default = value
local handlerid
if handler ~= nil then
handlerid = _rules.listen(name, handler)
end
if _rules.get(name) == nil then
_rules.set(name, value)
elseif handler then
handler(_rules.get(name))
end
return handlerid
end
function _rules.unlisten(name, id)
local rule = _rules.rules[name]
if rule == nil then
return
end
rule.listeners[utf8.encode(id)] = nil
end
function _rules.clear()
_rules.rules = {}
_rules.nextid = 1
end
function __vc_on_hud_open()
_rules.create("allow-cheats", true)
_rules.create("allow-content-access", hud._is_content_access(), function(value)
hud._set_content_access(value)
end)
_rules.create("allow-flight", true, function(value)
input.set_enabled("player.flight", value)
end)
_rules.create("allow-noclip", true, function(value)
input.set_enabled("player.noclip", value)
end)
_rules.create("allow-attack", true, function(value)
input.set_enabled("player.attack", value)
end)
_rules.create("allow-destroy", true, function(value)
input.set_enabled("player.destroy", value)
end)
_rules.create("allow-cheat-movement", true, function(value)
input.set_enabled("movement.cheat", value)
end)
_rules.create("allow-fast-interaction", true, function(value)
input.set_enabled("player.fast_interaction", value)
end)
_rules.create("allow-debug-cheats", true, function(value)
hud._set_debug_cheats(value)
end)
input.add_callback("devtools.console", function()
if menu.page ~= "" then
return
end
time.post_runnable(function()
hud.show_overlay("core:console", false, {"console"})
end)
end)
input.add_callback("hud.chat", function()
if menu.page ~= "" then
return
end
time.post_runnable(function()
hud.show_overlay("core:console", false, {"chat"})
end)
end)
input.add_callback("key:escape", function()
if menu.page ~= "" then
menu:reset()
elseif hud.is_inventory_open() then
hud.close_inventory()
else
hud.pause()
end
end)
hud.open_permanent("core:ingame_chat")
end
local RULES_FILE = "world:rules.toml"
function __vc_on_world_open()
if not file.exists(RULES_FILE) then
return
end
local rule_values = toml.parse(file.read(RULES_FILE))
for name, value in pairs(rule_values) do
_rules.set(name, value)
end
end
function __vc_on_world_save()
local rule_values = {}
for name, rule in pairs(rules.rules) do
rule_values[name] = rule.value
end
file.write(RULES_FILE, toml.tostring(rule_values))
end
function __vc_on_world_quit()
_rules.clear()
gui_util:__reset_local()
stdcomp.__reset()
end
local __vc_coroutines = {}
local __vc_named_coroutines = {}
local __vc_next_coroutine = 1
function __vc_start_coroutine(chunk)
local co = coroutine.create(chunk)
local id = __vc_next_coroutine
__vc_next_coroutine = __vc_next_coroutine + 1
__vc_coroutines[id] = co
return id
end
function __vc_resume_coroutine(id)
local co = __vc_coroutines[id]
if co then
local success, err = coroutine.resume(co)
if not success then
debug.error(err)
error(err)
end
return coroutine.status(co) ~= "dead"
end
return false
end
function __vc_stop_coroutine(id)
local co = __vc_coroutines[id]
if co then
if coroutine.close then
coroutine.close(co)
end
__vc_coroutines[id] = nil
end
end
function start_coroutine(chunk, name)
local co = coroutine.create(function()
local status, error = xpcall(chunk, function(err)
local fullmsg = "error: "..string.match(err, ": (.+)").."\n"..debug.traceback()
gui.alert(fullmsg, function()
if world.is_open() then
__vc_app.close_world()
else
__vc_app.reset_content()
menu:reset()
menu.page = "main"
end
end)
return fullmsg
end)
if not status then
debug.error(error)
end
end)
__vc_named_coroutines[name] = co
end
local __post_runnables = {}
function __process_post_runnables()
if #__post_runnables then
for _, func in ipairs(__post_runnables) do
local status, result = xpcall(func, __vc__error)
if not status then
debug.error("error in post_runnable: "..result)
end
end
__post_runnables = {}
end
local dead = {}
for name, co in pairs(__vc_named_coroutines) do
local success, err = coroutine.resume(co)
if not success then
debug.error(err)
end
if coroutine.status(co) == "dead" then
table.insert(dead, name)
end
end
for _, name in ipairs(dead) do
__vc_named_coroutines[name] = nil
end
end
function time.post_runnable(runnable)
table.insert(__post_runnables, runnable)
end
assets = {}
assets.load_texture = core.__load_texture
-- --------- Deprecated functions ------ --
local function wrap_deprecated(func, name, alternatives)
return function (...)
on_deprecated_call(name, alternatives)
return func(...)
end
end
block_index = wrap_deprecated(block.index, "block_index", "block.index")
block_name = wrap_deprecated(block.name, "block_name", "block.name")
blocks_count = wrap_deprecated(block.defs_count, "blocks_count", "block.defs_count")
is_solid_at = wrap_deprecated(block.is_solid_at, "is_solid_at", "block.is_solid_at")
is_replaceable_at = wrap_deprecated(block.is_replaceable_at, "is_replaceable_at", "block.is_replaceable_at")
set_block = wrap_deprecated(block.set, "set_block", "block.set")
get_block = wrap_deprecated(block.get, "get_block", "block.get")
get_block_X = wrap_deprecated(block.get_X, "get_block_X", "block.get_X")
get_block_Y = wrap_deprecated(block.get_Y, "get_block_Y", "block.get_Y")
get_block_Z = wrap_deprecated(block.get_Z, "get_block_Z", "block.get_Z")
get_block_states = wrap_deprecated(block.get_states, "get_block_states", "block.get_states")
set_block_states = wrap_deprecated(block.set_states, "set_block_states", "block.set_states")
get_block_rotation = wrap_deprecated(block.get_rotation, "get_block_rotation", "block.get_rotation")
set_block_rotation = wrap_deprecated(block.set_rotation, "set_block_rotation", "block.set_rotation")
get_block_user_bits = wrap_deprecated(block.get_user_bits, "get_block_user_bits", "block.get_user_bits")
set_block_user_bits = wrap_deprecated(block.set_user_bits, "set_block_user_bits", "block.set_user_bits")
function load_script(path, nocache)
on_deprecated_call("load_script", "require or loadstring")
return __load_script(path, nocache)
end
_dofile = dofile
-- Replaces dofile('*/content/packid/*') with load_script('packid:*')
function dofile(path)
on_deprecated_call("dofile", "require or loadstring")
local index = string.find(path, "/content/")
if index then
local newpath = string.sub(path, index+9)
index = string.find(newpath, "/")
if index then
local label = string.sub(newpath, 1, index-1)
newpath = label..':'..string.sub(newpath, index+1)
if file.isfile(newpath) then
return __load_script(newpath, true)
end
end
end
return _dofile(path)
end