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wnsrc/addons/sam-master/lua/sam/libs/sh_pon.lua
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2024-08-04 23:12:27 +03:00

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Lua

--[[
| This file was obtained through the combined efforts
| of Madbluntz & Plymouth Antiquarian Society.
|
| Credits: lifestorm, Gregory Wayne Rossel JR.,
| Maloy, DrPepper10 @ RIP, Atle!
|
| Visit for more: https://plymouth.thetwilightzone.ru/
--]]
if SAM_LOADED then return end
--[[
DEVELOPMENTAL VERSION;
VERSION 1.2.2
Copyright thelastpenguin™
You may use this for any purpose as long as:
- You don't remove this copyright notice.
- You don't claim this to be your own.
- You properly credit the author, thelastpenguin™, if you publish your work based on (and/or using) this.
If you modify the code for any purpose, the above still applies to the modified code.
The author is not held responsible for any damages incured from the use of pon, you use it at your own risk.
DATA TYPES SUPPORTED:
- tables - k,v - pointers
- strings - k,v - pointers
- numbers - k,v
- booleans- k,v
- Vectors - k,v
- Angles - k,v
- Entities- k,v
- Players - k,v
CHANGE LOG
V 1.1.0
- Added Vehicle, NPC, NextBot, Player, Weapon
V 1.2.0
- Added custom handling for k,v tables without any array component.
V 1.2.1
- fixed deserialization bug.
THANKS TO...
- VERCAS for the inspiration.
]]
local pon = {}
sam.pon = pon
do
local type = sam.type
local IsColor = IsColor
local tonumber = tonumber
local format = string.format
local encode = {}
local cacheSize = 0
encode['table'] = function(self, tbl, output, cache)
if cache[tbl] then
output[#output + 1] = format('(%x)', cache[tbl])
return
else
cacheSize = cacheSize + 1
cache[tbl] = cacheSize
end
local first = next(tbl, nil)
local predictedNumeric = 1
-- starts with a numeric dealio
if first == 1 then
output[#output + 1] = '{'
for k, v in next, tbl do
if k == predictedNumeric then
predictedNumeric = predictedNumeric + 1
local tv = type(v)
if tv == 'string' then
local pid = cache[v]
if pid then
output[#output + 1] = format('(%x)', pid)
else
cacheSize = cacheSize + 1
cache[v] = cacheSize
self.string(self, v, output, cache)
end
elseif IsColor(v) then
self.Color(self, v, output, cache)
else
self[tv](self, v, output, cache)
end
else
break
end
end
predictedNumeric = predictedNumeric - 1
else
predictedNumeric = nil
end
if predictedNumeric == nil then
output[#output + 1] = '[' -- no array component
else
output[#output + 1] = '~' -- array component came first so shit needs to happen
end
for k, v in next, tbl, predictedNumeric do
local tk, tv = type(k), type(v)
if not self[tk] or not self[tv] then continue end
-- WRITE KEY
if tk == 'string' then
local pid = cache[k]
if pid then
output[#output + 1] = format('(%x)', pid)
else
cacheSize = cacheSize + 1
cache[k] = cacheSize
self.string(self, k, output, cache)
end
elseif IsColor(v) then
self.Color(self, v, output, cache)
else
self[tk](self, k, output, cache)
end
-- WRITE VALUE
if tv == 'string' then
local pid = cache[v]
if pid then
output[#output + 1] = format('(%x)', pid)
else
cacheSize = cacheSize + 1
cache[v] = cacheSize
self.string(self, v, output, cache)
end
elseif IsColor(v) then
self.Color(self, v, output, cache)
else
self[tv](self, v, output, cache)
end
end
output[#output + 1] = '}'
end
-- ENCODE STRING
local gsub = string.gsub
encode['string'] = function(self, str, output)
--if tryCache(str, output then return end
local estr, count = gsub(str, ';', "\\;")
if count == 0 then
output[#output + 1] = '\'' .. str .. ';'
else
output[#output + 1] = '"' .. estr .. '";'
end
end
-- ENCODE NUMBER
encode['number'] = function(self, num, output)
if num % 1 == 0 then
if num < 0 then
output[#output + 1] = format('x%x;', -num)
else
output[#output + 1] = format('X%x;', num)
end
else
output[#output + 1] = tonumber(num) .. ';'
end
end
-- ENCODE BOOLEAN
encode['boolean'] = function(self, val, output)
output[#output + 1] = val and 't' or 'f'
end
-- ENCODE VECTOR
encode['Vector'] = function(self, val, output)
output[#output + 1] = ('v' .. val.x .. ',' .. val.y) .. (',' .. val.z .. ';')
end
-- ENCODE ANGLE
encode['Angle'] = function(self, val, output)
output[#output + 1] = ('a' .. val.p .. ',' .. val.y) .. (',' .. val.r .. ';')
end
encode['Entity'] = function(self, val, output)
output[#output + 1] = 'E' .. (IsValid(val) and (val:EntIndex() .. ';') or '#')
end
encode['Player'] = encode['Entity']
encode['Vehicle'] = encode['Entity']
encode['Weapon'] = encode['Entity']
encode['NPC'] = encode['Entity']
encode['NextBot'] = encode['Entity']
encode['PhysObj'] = encode['Entity']
encode['Color'] = function(self, val, output)
output[#output + 1] = ('C' .. val.r .. ',' .. val.g .. ',' .. val.b) .. (',' .. val.a .. ';')
end
encode['console'] = function(self, val, output)
output[#output + 1] = 's'
end
encode['nil'] = function(self, val, output)
output[#output + 1] = '?'
end
encode.__index = function(key)
ErrorNoHalt('Type: ' .. key .. ' can not be encoded. Encoded as as pass-over value.')
return encode['nil']
end
do
local concat = table.concat
function pon.encode(tbl)
local output = {nil, nil, nil, nil, nil, nil, nil, nil}
cacheSize = 0
encode['table'](encode, tbl, output, {})
return concat(output)
end
end
end
do
local tonumber = tonumber
local find, sub, gsub, Explode = string.find, string.sub, string.gsub, string.Explode
local Vector, Angle, Entity = Vector, Angle, Entity
local decode = {}
decode['{'] = function(self, index, str, cache)
local cur = {}
cache[#cache + 1] = cur
local k, v, tk, tv = 1, nil, nil, nil
while (true) do
tv = sub(str, index, index)
if not tv or tv == '~' then
index = index + 1
break
end
if tv == '}' then return index + 1, cur end
-- READ THE VALUE
index = index + 1
index, v = self[tv](self, index, str, cache)
cur[k] = v
k = k + 1
end
while (true) do
tk = sub(str, index, index)
if not tk or tk == '}' then
index = index + 1
break
end
-- READ THE KEY
index = index + 1
index, k = self[tk](self, index, str, cache)
-- READ THE VALUE
tv = sub(str, index, index)
index = index + 1
index, v = self[tv](self, index, str, cache)
cur[k] = v
end
return index, cur
end
decode['['] = function(self, index, str, cache)
local cur = {}
cache[#cache + 1] = cur
local k, v, tk, tv = 1, nil, nil, nil
while (true) do
tk = sub(str, index, index)
if not tk or tk == '}' then
index = index + 1
break
end
-- READ THE KEY
index = index + 1
index, k = self[tk](self, index, str, cache)
if not k then continue end
-- READ THE VALUE
tv = sub(str, index, index)
index = index + 1
if not self[tv] then
print('did not find type: ' .. tv)
end
index, v = self[tv](self, index, str, cache)
cur[k] = v
end
return index, cur
end
-- STRING
decode['"'] = function(self, index, str, cache)
local finish = find(str, '";', index, true)
local res = gsub(sub(str, index, finish - 1), '\\;', ';')
index = finish + 2
cache[#cache + 1] = res
return index, res
end
-- STRING NO ESCAPING NEEDED
decode['\''] = function(self, index, str, cache)
local finish = find(str, ';', index, true)
local res = sub(str, index, finish - 1)
index = finish + 1
cache[#cache + 1] = res
return index, res
end
-- NUMBER
decode['n'] = function(self, index, str)
index = index - 1
local finish = find(str, ';', index, true)
local num = tonumber(sub(str, index, finish - 1))
index = finish + 1
return index, num
end
decode['0'] = decode['n']
decode['1'] = decode['n']
decode['2'] = decode['n']
decode['3'] = decode['n']
decode['4'] = decode['n']
decode['5'] = decode['n']
decode['6'] = decode['n']
decode['7'] = decode['n']
decode['8'] = decode['n']
decode['9'] = decode['n']
decode['-'] = decode['n']
-- positive hex
decode['X'] = function(self, index, str)
local finish = find(str, ';', index, true)
local num = tonumber(sub(str, index, finish - 1), 16)
index = finish + 1
return index, num
end
-- negative hex
decode['x'] = function(self, index, str)
local finish = find(str, ';', index, true)
local num = -tonumber(sub(str, index, finish - 1), 16)
index = finish + 1
return index, num
end
-- POINTER
decode['('] = function(self, index, str, cache)
local finish = find(str, ')', index, true)
local num = tonumber(sub(str, index, finish - 1), 16)
index = finish + 1
return index, cache[num]
end
-- BOOLEAN. ONE DATA TYPE FOR YES, ANOTHER FOR NO.
decode['t'] = function(self, index) return index, true end
decode['f'] = function(self, index) return index, false end
-- VECTOR
decode['v'] = function(self, index, str)
local finish = find(str, ';', index, true)
local vecStr = sub(str, index, finish - 1)
index = finish + 1 -- update the index.
local segs = Explode(',', vecStr, false)
return index, Vector(tonumber(segs[1]), tonumber(segs[2]), tonumber(segs[3]))
end
-- ANGLE
decode['a'] = function(self, index, str)
local finish = find(str, ';', index, true)
local angStr = sub(str, index, finish - 1)
index = finish + 1 -- update the index.
local segs = Explode(',', angStr, false)
return index, Angle(tonumber(segs[1]), tonumber(segs[2]), tonumber(segs[3]))
end
-- ENTITY
decode['E'] = function(self, index, str)
if str[index] == '#' then
index = index + 1
return index, NULL
else
local finish = find(str, ';', index, true)
local num = tonumber(sub(str, index, finish - 1))
index = finish + 1
return index, Entity(num)
end
end
-- COLOR
decode['C'] = function(self, index, str)
local finish = find(str, ';', index, true)
local colStr = sub(str, index, finish - 1)
index = finish + 1 -- update the index.
local segs = Explode(',', colStr, false)
return index, Color(segs[1], segs[2], segs[3], segs[4])
end
-- PLAYER
decode['P'] = function(self, index, str)
local finish = find(str, ';', index, true)
local num = tonumber(sub(str, index, finish - 1))
index = finish + 1
return index, Entity(num) or NULL
end
-- NIL
decode['?'] = function(self, index) return index + 1, nil end
-- SAM CONSOLE
decode['s'] = function(self, index) return index, sam.console end
function pon.decode(data)
local _, res = decode[sub(data, 1, 1)](decode, 2, data, {})
return res
end
end