【Unity】Unity で Lua を使用できるようにする「tolua」紹介

はじめに

「tolua」を Unity プロジェクトに導入することで
Unity で Lua が使用できるようになります

ライブラリ

• tolua_runtime
  https://github.com/topameng/tolua_runtime
• Debugger
  https://github.com/topameng/Debugger
• CString
  https://github.com/topameng/CString
• protoc-gen-lua
  https://github.com/topameng/protoc-gen-lua

フレームワークとデモ

• LuaFrameWork
  https://github.com/jarjin/LuaFramework_NGUI
  https://github.com/jarjin/LuaFramework_UGUI
• XlsxToLua
  https://github.com/zhangqi-ulua/XlsxToLua
• UnityHello
  https://github.com/woshihuo12/UnityHello
• UWA-ToLua
  http://uwa-download.oss-cn-beijing.aliyuncs.com/plugins%2FiOS%2FUWA-iOS-ToLua.zip

デバッガー

• EmmyLua
  https://github.com/tangzx/IntelliJ-EmmyLua
• unity_tolua-zerobrane_api
  https://github.com/LabOfHoward/unity_tolua-zerobrane_api

クイックスタート

例1

var lua = new LuaState();
lua.Start();
lua.DoString("print('hello world')");
lua.Dispose();

例2

private LuaState luaState;

private void Awake()
{
    luaState = LuaClient.GetMainState();

    try
    {            
        luaState.Call("UIShop.Awake", false);
    }
    catch (Exception e)
    {
        luaState.ThrowLuaException(e);
    }
}

private void Start()
{
    luaState.Call("UIShop.Start", false);
}

例3

local go = GameObject('go')
go:AddComponent(typeof(UnityEngine.ParticleSystem))
go.transform.position = Vector3.zero
go.transform:Rotate(Vector3(0,90,0), UnityEngine.Space.World)
go.transform:Rotate(Vector3(0, 1, 0), 0)

--DOTween 連携
go.transform:DORotate(Vector3(0,0,360), 2, DG.Tweening.RotateMode.FastBeyond360)

Shop = {}

function Shop:Awake()
    self.OnUpdate = UpdateBeat:CreateListener(Shop.Update, self)
    UpdateBeat:AddListener(self.OnUpdate)
end

function Shop:OnDestroy()
    UpdateBeat:RemoveListener(self.OnUpdate)
end

function Shop:OnClick()
    print("OnClick")
end

function Shop:OnToggle()
    print("OnToggle")
end

function Shop:Update()
end

local listener = UIEventListener.Get(go)
listener.onClick = function() print("OnClick") end
listener.onClick = nil
listener.onClick = UIEventListener.VoidDelegate(Shop.OnClick, Shop)
listener.onClick = listener.onClick + UIEventListener.VoidDelegate(Shop.OnClick, Shop)
listener.onClick = listener.onClick - UIEventListener.VoidDelegate(Shop.OnClick, Shop)

local toggle = go:GetComponent(typeof(UIToggle))
EventDelegate.Add(toggle.onChange, EventDelegate.Callback(Shop.OnToggle, Shop))
EventDelegate.Remove(toggle.onChange, EventDelegate.Callback(Shop.OnToggle, Shop))

local Client = {}

function Client:Log(str)
end

Application.logMessageReceived = Application.logMessageReceived + Application.LogCallback(Clent.Log, Client)
Application.logMessageReceived = Application.logMessageReceived - Application.LogCallback(Clent.Log, Client)

local _layer = 2 ^ LayerMask.NameToLayer('Default')
local flag, hit = UnityEngine.Physics.Raycast(ray, nil, 5000, _layer)

if flag then
    print('pick from lua, point: '..tostring(hit.point))
end

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