A Lua Engine for Warcraft 3

[actboy168]

The following software is an extension for Warcraft 3 which can let it execute lua script. You can just click 'launchwar3.bat' to lauch Warcraft 3 with this extension.

Call the following function in jass2 script

call Cheat("exec-lua: hello.lua")

Now the imported 'hello.lua' is lauched.This function is the same as (require 'hello.lua') in lua.

Here is a simple example

-- jass.common is a library, it contains all the function in common.j
local cj = require 'jass.common'

cj.TimerStart(cj.CreateTimer(), 1.00, true,
    function ()
        cj.DisplayTimedTextToPlayer(cj.GetLocalPlayer(), 0, 0, 60., 'hello')
    end
)

For more information please check the attachment 'example.w3x' and Introduction

You can find more lua engine related source code here.GitHub

In addition, you can use jass2lua tool to translate your jass base map to a lua base map.jass2lua

 

[najizhimo]

Hey, I have just tried your extension. Awesome idea isnt it? Glad to see this kind of lua software is in developing!

 

[actboy168]

Your tool is useful, but you need to consider these things

1. why should your tool be used over SharpCraft?

2. why would a player specially download your tool?

Now, you can overtake SharpCraft if you address point #2. How do you address this?

If a map does not currently support Lua, then create a bat file for the user and just have the user run that. The bat file would download your thing and set an *exe* or a jar that then calls wc3 through your thing. This would enable people to play maps using your tool rather easily. Now, MindWorX is against this idea, which is why SharpCraft has yet to be adopted. It likely never will be adopted. If a developer decides to use SharpCraft or your tool, their target audience will be very small. They'd be committing their map to suicide.


So keep that in mind =)


Otherwise, good job.

I think the best way is collaboration with the Warcraft3 platform.The tool has been supported by 11game.This is the most popular platform in China.

 

[MoeUshio]

Here too deserted (translated by Google)
Here is clear (translated by Baidu)

 

[Ralle]

Sounds pretty cool! What happens if you open Battle.net or try to play with somebody who don't have it?

 

[MindWorX]

...

That will collide with SharpCraft behavior. SharpCraft allows people to get a callback from the Cheat native, and with such a generic command like "run" it's bound to cause issues. Perhaps a more specific command would be in order?

    call Cheat("eval-lua: command")
    call Cheat("exec-lua: file")
    call Cheat("eval-cs: command")
    call Cheat("exec-cs: file")

This makes it a more standardized way of using both systems, and has a much smaller chance of colliding with the mappers own commands.

 

[actboy168]

Sounds pretty cool! What happens if you open Battle.net or try to play with somebody who don't have it?

It depends your lua script, you can use *GetUnitState* but can't use *SetUnitState*.

 

[actboy168]

That will collide with SharpCraft behavior. SharpCraft allows people to get a callback from the Cheat native, and with such a generic command like "run" it's bound to cause issues. Perhaps a more specific command would be in order?

    call Cheat("eval-lua: command")
    call Cheat("exec-lua: file")
    call Cheat("eval-cs: command")
    call Cheat("exec-cs: file")

This makes it a more standardized way of using both systems, and has a much smaller chance of colliding with the mappers own commands.

ok, this is good

 

[Almia]

All I can say is yes!

Btw, does this engine support recursive calls?

 

[actboy168]

All I can say is yes!

Btw, does this engine support recursive calls?

Yes

function fibonacci(n) 
    if  n < 2 then return n end
    return fibonacci(n-2) + fibonacci(n-1)
end