/// <summary>
/// Initialises the Lua environment and compiles the Lua string for execution later on.
/// </summary>
protected virtual void InitLuaScript()
{
if (initialised)
{
return;
}
if (LuaEnv == null &&
luaEnvironment != null)
{
LuaEnv = luaEnvironment as ILuaEnvironment;
}
if (LuaEnv == null)
{
// Create a Lua Environment if none exists yet
LuaEnv = LuaEnvironment.GetLua();
}
if (LuaEnv == null)
{
Debug.LogError("No Lua Environment found");
return;
}
// Ensure the LuaEnvironment is initialized before trying to execute code
LuaEnv.InitEnvironment();
// Cache a descriptive name to use in Lua error messages
friendlyName = GetPath(transform) + ".LuaScript";
string s = GetLuaString();
luaFunction = LuaEnv.LoadLuaFunction(s, friendlyName);
initialised = true;
}
public virtual bool SubstituteStrings(StringBuilder input)
{
// This method could be called from the Start of another component, so
// we need to ensure that the LuaEnvironment has been initialized.
if (LuaEnv == null)
{
LuaEnv = GetComponent <ILuaEnvironment>();
if (LuaEnv != null)
{
LuaEnv.InitEnvironment();
}
}
if (LuaEnv == null)
{
UnityEngine.Debug.LogError("No Lua Environment found");
return(false);
}
if (LuaEnv.Interpreter == null)
{
UnityEngine.Debug.LogError("No Lua interpreter found");
return(false);
}
MoonSharp.Interpreter.Script interpreter = LuaEnv.Interpreter;
// Instantiate the regular expression object.
Regex r = new Regex("\\{\\$.*?\\}");
bool modified = false;
// Match the regular expression pattern against a text string.
var results = r.Matches(input.ToString());
foreach (Match match in results)
{
string key = match.Value.Substring(2, match.Value.Length - 3);
// Match against string table and active language (if specified)
if (stringTable != null)
{
DynValue stringTableVar = stringTable.Get(key);
if (stringTableVar.Type == DataType.Table)
{
DynValue languageEntry = stringTableVar.Table.Get(activeLanguage);
if (languageEntry.Type == DataType.String)
{
input.Replace(match.Value, languageEntry.String);
modified = true;
}
continue;
}
}
// Match against global variables
DynValue globalVar = interpreter.Globals.Get(key);
if (globalVar.Type != DataType.Nil)
{
input.Replace(match.Value, globalVar.ToPrintString());
modified = true;
continue;
}
}
return(modified);
}