什么是最有效的方式来删除混淆名称（我的世界）？

Question

我已经为Minecraft制作了一个允许Lua修改的mod。一切工作正常，但通常方法的名称在MC中被混淆。使正常函数名称重定向到混淆名称的最佳方式是什么？

例如，用户使得脚本，这是打印Hello World块时右点击：

function onActivated(world, x, y, z, player) player:addChatMessage("hello world") end

addChatMessage应该调用Java方法EntityPlayer.func_71035_c（字符串文本）

Answer 1

-- translation file (translation.txt) 
func_70912_b,setTameSkin,2, 
func_70913_u,getTameSkin,2, 
func_70915_j,getShadingWhileShaking,2,Used when calculating the amount of shading to apply while the wolf is shaking. 
func_70916_h,setAngry,2,Sets whether this wolf is angry. 


-- obfuscated program (script.lua) 
x:func_70913_u(y, z) 
x:func_70915_j(y, z) 


-- your preprocessor (preprocessor.lua) 
local transl = {} 
for line in io.lines'translation.txt' do 
    local obf, orig = line:match'^(.-),(.-),' 
    transl[obf] = orig 
end 
local script = assert(io.open('script.lua','rb')):read'*a' 
local output = assert(io.open('script2.lua','wb')) 
output:write((script:gsub('[%w_]+',transl))) 
output:close() 


-- preprocessor output (script2.lua) 
x:getTameSkin(y, z) 
x:getShadingWhileShaking(y, z) 

---

编辑：

local obfuscations = {} 
for line in io.lines'translation.txt' do 
    local obf, orig = line:match'^(.-),(.-),' 
    obfuscations[orig] = obf 
end 

local function get_obf_key_value(t, k, __index) 
    local value = __index and __index(t, k) 
    if value == nil and obfuscations[k] then 
     value = t[obfuscations[k]] 
    end 
    return value 
end 

local cache = {get_obf_key_value = true} 

local function __index_constructor(__index) 
    if not __index then 
     return get_obf_key_value 
    end 
    local old__index = cache[__index] 
    if old__index then 
     return old__index == true and __index or old__index 
    else 
     local function new__index(t, k) 
     return get_obf_key_value(t, k, __index) 
     end 
     cache[__index] = new__index 
     cache[new__index] = true 
     return new__index 
    end 
end 

local obf_mt = {__index = get_obf_key_value} 

local function correct_metatable(object) 
    local mt = getmetatable(object) 
    if mt == nil then 
     setmetatable(object, obf_mt) 
    else 
     local __index = mt.__index 
     if __index == nil or type(__index) == 'function' then 
      mt.__index = __index_constructor(__index) 
     else 
     correct_metatable(__index) 
     end 
    end 
end 

-- you should call correct_metatable(class_or_object_of_that_class) 
-- at least once for every class 
correct_metatable(wolf) 
correct_metatable(goat) 
correct_metatable(cabbage) 
...