Lua hot update basic grammar

 

1, What is hot update

  Hot updates can be done without downloading the client again , Update the content of the game .

 

2, Why? C# Scripts cannot be updated directly

  C# You need to compile before running dll file , This compilation process cannot be completed on mobile platforms

 

3, What is? AssetBundle

    Resource renewal Technology , It is through AssetBundle, We can go through AssetBundle Update game UI, You can also package scripts or other code as resources     AssetBundle Then update to the client .

    Lua It is a powerful and compact scripting language , Parsing can be run across platforms , And there is no need to compile

4, How to use it Lua Hot update

    You can write Lua The parser , Through this parser , You can run the latest Lua Script , Then we write the code that controls the logic of the game Lua Script

 

5, How to learn hot renewal Technology

   1, Study Lua Programming

   2, Learn to pass LuaInterface and luanet Conduct Lua and C# Interactive communication

   3, Learn to use AssetBundle Update resources

   4, Study uLua SimpleFramework

6,Lua What is it  

Embedded in the application , Flexible extension and customization for applications ,

  Lua There is a simultaneous JIT project , Provides instant compilation on a specific platform .

  

  Luaforwindows 

   http://luaforwindows.luaforge.net/

   ( Installable exe file , A whole set of Lua development environment , Yes Lua Interpreter , Reference manual , Examples and libraries , file , And editor ) 

  lua Open under the installation directory  SciTE.exe,lua The suffix of the file is .lua, Press down F5 function

 

7, How to define variables

  num= 100

  stay Lua Variables defined in are of no type , According to what data is stored , To decide what type

How to add comments

1, Single-line comments -- The comment

2, Multiline comment   --[[ Here are the notes ]]--

Lua The types of variables in are as follows ：

1,nil Represents empty data , Equate to null

2,boolean Boolean type , Storage true and false

3,string String type , Strings can be expressed in double quotation marks or single quotation marks

4,number Decimal type （Lua There is no integer type in ）

5,table Table type

  myTable = {34,34,2,342,4}

  myTable[3]

We can use type() To get the type of a variable

matters needing attention

All variables defined by default are global , To define a local variable, you need to add a local;

Local variables declared in a code block , At the end of contemporary code block operation , This variable will be released ;

temp= 34

local var = 345

if Usage of sentences

local hp = 40
if hp<=0 then
	print("role is die")
elseif hp>=50 then
	print("role is good")
else
	print("role is bad")
end

Loop structure while loop

index = 1
while index<=100 do
	print(index)
	index=index+1
end

Loop structure repeat loop

repeat
	print(index)
	index=index+1
until index>100

for Loop structure

sum = 0

for index = 1,100 do
	sum=sum+index
end
print(sum)

function （ Method ）

function Plus(num1,num2)
	return num1+num2
end

res  = Plus(34,45)
print(res)

 

Mathematical operation function

   math.abs                        --  Take the absolute value

   math.cos                        -- Take trigonometric function

   math.max

   math.maxinteger

   math.min

   math.random

   math.sin

   math.sqrt

   math.tan

 

String processing related functions

   string.byte

   string.char

   string.find

   sting.format

   string.lower

   string.sub

   string.upper

   .. String addition

   tostring()  Convert a number into a string

   tonumber() Convert a string into a number

 

table surface

    stay Lua Medium table similar C# Dictionary in , It's really just a key-value Data structure of key value pair .

  1,table The creation of

    myTable = {}

    Use after the table name {} assignment , Represents an empty table

  2,table Assignment

     myTable[3]=34  The assignment method when the key is a number

     myTable["name"]="taikr" When the key is a string assignment

     myTable.name = "siki" When the key is a string assignment

  3,table The interview of

  myTable[3]  When the key is a number , There is only one way to access

  myTable.name When the key is a string, there are two ways to access

  myTable["name"]

 

Table related functions

1.table.concat, Connect all the data in the table into a string

2,table.insert, Insert a data into the specified location

3,table.move, mobile data

4,table.pack, Pack it into a watch

5,table.remove, Remove the data from the specified location

6,table.sort, Sort

7,table.unpack, Returns an array , An array of specified ranges

 

--[[
myTable={}
myTable[1]=34
myTable[3]="sdf"

myTable["name"] = "taikr"
myTable.name = "siki"

print(myTable[1] ,myTable.name,myTable["name"] )


myTable = {name="taikr",age=18,isMan = false}

myTable.school = " Tyco online "

print(myTable.isMan,myTable.school )
]]--

--scores = {34,56,123,6734,23}
--print( scores[1] )

--for index=1,table.getn(scores) do
	--print( scores[index] )
--end

--[[
myTable = {name="taikr",age=18,isMan = false}

for index,value in pairs(myTable) do
print(index,value)
end
]]--
myTable = {name="taikr",age=18,isMan = false}
scores = {34,56,123,6734,23}
table.insert( myTable,2,2 ) -- myTable[2]=2
table.remove(scores,3)
table.sort(scores)
print( table.concat(scores))