tibia-client/modules/corelib/util.lua

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-- @docfuncs @{
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function print(...)
local msg = ""
local args = {...}
local appendSpace = #args > 1
for i,v in ipairs(args) do
msg = msg .. tostring(v)
if appendSpace and i < #args then
msg = msg .. ' '
end
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end
g_logger.log(LogInfo, msg)
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end
function pinfo(msg)
g_logger.log(LogInfo, msg)
end
function perror(msg)
g_logger.log(LogError, msg)
end
function pwarning(msg)
g_logger.log(LogWarning, msg)
end
function pdebug(msg)
g_logger.log(LogDebug, msg)
end
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function fatal(msg)
g_logger.log(LogFatal, msg)
end
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function exit()
g_app.exit()
end
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function quit()
g_app.quit()
end
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function connect(object, arg1, arg2, arg3)
local signalsAndSlots
local pushFront
if type(arg1) == 'string' then
signalsAndSlots = { [arg1] = arg2 }
pushFront = arg3
else
signalsAndSlots = arg1
pushFront = arg2
end
for signal,slot in pairs(signalsAndSlots) do
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if not object[signal] then
local mt = getmetatable(object)
if mt and type(object) == 'userdata' then
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object[signal] = function(...)
return signalcall(mt[signal], ...)
end
end
end
if not object[signal] then
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object[signal] = slot
elseif type(object[signal]) == 'function' then
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object[signal] = { object[signal] }
end
if type(slot) ~= 'function' then
perror(debug.traceback('unable to connect a non function value'))
end
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if type(object[signal]) == 'table' then
if pushFront then
table.insert(object[signal], 1, slot)
else
table.insert(object[signal], #object[signal]+1, slot)
end
end
end
end
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function disconnect(object, arg1, arg2)
local signalsAndSlots
if type(arg1) == 'string' then
if arg2 == nil then
object[arg1] = nil
return
end
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signalsAndSlots = { [arg1] = arg2 }
elseif type(arg1) == 'table' then
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signalsAndSlots = arg1
else
perror(debug.traceback('unable to disconnect'))
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end
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for signal,slot in pairs(signalsAndSlots) do
if not object[signal] then
elseif type(object[signal]) == 'function' then
if object[signal] == slot then
object[signal] = nil
end
elseif type(object[signal]) == 'table' then
for k,func in pairs(object[signal]) do
if func == slot then
table.remove(object[signal], k)
if #object[signal] == 1 then
object[signal] = object[signal][1]
end
break
end
end
end
end
end
function newclass(name)
if not name then
perror(debug.traceback('new class has no name.'))
end
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local class = {}
function class.internalCreate()
local instance = {}
for k,v in pairs(class) do
instance[k] = v
end
return instance
end
class.create = class.internalCreate
class.__class = name
class.getClassName = function() return name end
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return class
end
function extends(base, name)
if not name then
perror(debug.traceback('extended class has no name.'))
end
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local derived = {}
function derived.internalCreate()
local instance = base.create()
for k,v in pairs(derived) do
instance[k] = v
end
return instance
end
derived.create = derived.internalCreate
derived.__class = name
derived.getClassName = function() return name end
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return derived
end
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function runinsandbox(func, ...)
if type(func) == 'string' then
func, err = loadfile(resolvepath(func, 2))
if not func then
error(err)
end
end
local env = { }
local oldenv = getfenv(0)
setmetatable(env, { __index = oldenv } )
setfenv(0, env)
func(...)
setfenv(0, oldenv)
return env
end
function loadasmodule(name, file)
file = file or resolvepath(name, 2)
if package.loaded[name] then
return package.loaded[name]
end
local env = runinsandbox(file)
package.loaded[name] = env
return env
end
local function module_loader(modname)
local module = g_modules.getModule(modname)
if not module then
return '\n\tno module \'' .. modname .. '\''
end
return function()
if not module:load() then
error('unable to load required module ' .. modname)
end
return module:getSandbox()
end
end
table.insert(package.loaders, 1, module_loader)
function import(table)
assert(type(table) == 'table')
local env = getfenv(2)
for k,v in pairs(table) do
env[k] = v
end
end
function export(what, key)
if key ~= nil then
_G[key] = what
else
for k,v in pairs(what) do
_G[k] = v
end
end
end
function unexport(key)
if type(key) == 'table' then
for _k,v in pairs(key) do
_G[v] = nil
end
else
_G[key] = nil
end
end
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function getfsrcpath(depth)
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depth = depth or 2
local info = debug.getinfo(1+depth, "Sn")
local path
if info.short_src then
path = info.short_src:match("(.*)/.*")
end
if not path then
path = '/'
elseif path:sub(0, 1) ~= '/' then
path = '/' .. path
end
return path
end
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function resolvepath(filePath, depth)
if not filePath then return nil end
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depth = depth or 1
if filePath then
if filePath:sub(0, 1) ~= '/' then
local basepath = getfsrcpath(depth+1)
if basepath:sub(#basepath) ~= '/' then basepath = basepath .. '/' end
return basepath .. filePath
else
return filePath
end
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else
local basepath = getfsrcpath(depth+1)
if basepath:sub(#basepath) ~= '/' then basepath = basepath .. '/' end
return basepath
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end
end
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function toboolean(v)
if type(v) == 'string' then
v = v:trim():lower()
if v == '1' or v == 'true' then
return true
end
elseif type(v) == 'number' then
if v == 1 then
return true
end
elseif type(v) == 'boolean' then
return v
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end
return false
end
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function fromboolean(boolean)
if boolean then
return 'true'
else
return 'false'
end
end
function booleantonumber(boolean)
if boolean then
return 1
else
return 0
end
end
function numbertoboolean(number)
if number ~= 0 then
return true
else
return false
end
end
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function signalcall(param, ...)
if type(param) == 'function' then
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local status, ret = pcall(param, ...)
if status then
return ret
else
perror(ret)
end
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elseif type(param) == 'table' then
for k,v in pairs(param) do
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local status, ret = pcall(v, ...)
if status then
if ret then return true end
else
perror(ret)
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end
end
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elseif param ~= nil then
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error('attempt to call a non function value')
end
return false
end
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function tr(s, ...)
return string.format(s, ...)
end
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function getOppositeAnchor(anchor)
if anchor == AnchorLeft then
return AnchorRight
elseif anchor == AnchorRight then
return AnchorLeft
elseif anchor == AnchorTop then
return AnchorBottom
elseif anchor == AnchorBottom then
return AnchorTop
elseif anchor == AnchorVerticalCenter then
return AnchorHorizontalCenter
elseif anchor == AnchorHorizontalCenter then
return AnchorVerticalCenter
end
return anchor
end
function makesingleton(obj)
local singleton = {}
if obj.getClassName then
for key,value in pairs(_G[obj:getClassName()]) do
if type(value) == 'function' then
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singleton[key] = function(...) return value(obj, ...) end
end
end
end
return singleton
end
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-- @}