访问Lua变量

AccessingLuaVariables.cs

    using UnityEngine;
    using System.Collections.Generic;
    using LuaInterface;

    // 访问Lua变量
    public class AccessingLuaVariables : MonoBehaviour 
    {
        private string script =
            @"
                print('Objs2Spawn is: '..Objs2Spawn)
                var2read = 42
                varTable = {1,2,3,4,5}
                varTable.default = 1
                varTable.map = {}
                varTable.map.name = 'map'

                meta = {name = 'meta'}
                setmetatable(varTable, meta)

                function TestFunc(strs)
                    print('get func by variable')
                end
            ";

        void Start () 
        {        
            LuaState lua = new LuaState();
            lua.Start();
            lua["Objs2Spawn"] = 5;
            lua.DoString(script);

            //通过LuaState访问
            Debugger.Log("Read var from lua: {0}", lua["var2read"]);
            Debugger.Log("Read table var from lua: {0}", lua["varTable.default"]);

            LuaFunction func = lua["TestFunc"] as LuaFunction;
            func.Call();
            func.Dispose();

            //cache成LuaTable进行访问
            LuaTable table = lua.GetTable("varTable");
            Debugger.Log("Read varTable from lua, default: {0} name: {1}", table["default"], table["map.name"]);
            table["map.name"] = "new";
            Debugger.Log("Modify varTable name: {0}", table["map.name"]);

            table.AddTable("newmap");
            LuaTable table1 = (LuaTable)table["newmap"];
            table1["name"] = "table1";
            Debugger.Log("varTable.newmap name: {0}", table1["name"]);
            table1.Dispose();

            table1 = table.GetMetaTable();

            if (table1 != null)
            {
                Debugger.Log("varTable metatable name: {0}", table1["name"]);
            }

            object[] list = table.ToArray();

            for (int i = 0; i < list.Length; i++)
            {
                Debugger.Log("varTable[{0}], is {1}", i, list[i]);
            }

            table.Dispose();                        
            lua.CheckTop();
            lua.Dispose();
        }
    }

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