/// <summary>
/// Gets the value with the specified string key. Returns a standard type such as
/// <c>string</c>, <c>float</c>, <c>bool</c>, or <c>null</c>. If the value
/// is a table, it returns a LuaTableWrapper around it.
/// </summary>
/// <param name="key">Key.</param>
public object this [string key] {
get {
if (luaTable == null)
{
if (DialogueDebug.LogErrors)
{
Debug.LogError(string.Format("{0}: Lua table is null; lookup[{1}] failed", new object[] { DialogueDebug.Prefix, key }));
}
return(null);
}
LuaValue luaValue = LuaNil.Nil;
if (luaTable.Length > 0)
{
// Get list value:
luaValue = luaTable.GetValue(Tools.StringToInt(key));
}
else
{
// Get dictionary value:
LuaValue luaValueKey = luaTable.GetKey(key);
if (luaValueKey == LuaNil.Nil)
{
//--- Suppressed: if (DialogueDebug.LogErrors) Debug.LogError(string.Format("{0}: Lua table does not contain key [{1}]", new string[] { DialogueDebug.Prefix, key }));
return(null);
}
luaValue = luaTable.GetValue(key);
}
if (luaValue is LuaTable)
{
return(new LuaTableWrapper(luaValue as LuaTable));
}
else
{
return(LuaInterpreterExtensions.LuaValueToObject(luaValue));
}
}
}
//--- Unused now that methods are optimized to use LuaInterpreter directly.
//private static Lua.Result SafeGetLuaResult(string luaCode) {
// try {
// return Lua.Run(luaCode, DialogueDebug.LogInfo);
// } catch (System.Exception) {
// return Lua.NoResult;
// }
//}
/// <summary>
/// Checks if a table element exists.
/// </summary>
/// <returns><c>true</c>, if the table entry exists, <c>false</c> otherwise.</returns>
/// <param name="table">Table name (e.g., "Actor").</param>
/// <param name="element">Element name (e.g., "Player").</param>
public static bool DoesTableElementExist(string table, string element)
{
LuaTable luaTable = Lua.Environment.GetValue(table) as LuaTable;
return((luaTable != null) ? (luaTable.GetKey(StringToTableIndex(element)) != LuaNil.Nil) : false);
//--- Was (unoptimized):
//LuaTableWrapper luaTable = SafeGetLuaResult(string.Format("return {0}", new System.Object[] { table })).AsTable;
//if (luaTable != null) {
// string tableIndex = StringToTableIndex(element);
// foreach (var o in luaTable.Keys) {
// if ((o.GetType() == typeof(string)) && (string.Equals((string) o, tableIndex))) return true;
// }
//}
//return false;
}