/// <summary>
/// Registers all public static methods in a class tagged with <see cref="LuaGlobalAttribute"/> as Lua global functions
/// </summary>
/// <param name="lua">The Lua VM to add the methods to</param>
/// <param name="type">The class type to get the methods from</param>
public static void TaggedStaticMethods(LuaInterface lua, Type type)
{
#region Sanity checks
if (lua == null)
{
throw new ArgumentNullException("lua");
}
if (type == null)
{
throw new ArgumentNullException("type");
}
if (!type.IsClass)
{
throw new ArgumentException("The type must be a class!", "type");
}
#endregion
foreach (MethodInfo method in type.GetMethods(BindingFlags.Static | BindingFlags.Public))
{
foreach (LuaGlobalAttribute attribute in method.GetCustomAttributes(typeof(LuaGlobalAttribute), false))
{
if (string.IsNullOrEmpty(attribute.Name))
{
lua.RegisterFunction(method.Name, null, method); // CLR name
}
else
{
lua.RegisterFunction(attribute.Name, null, method); // Custom name
}
}
}
}
/// <summary>
/// Registers all public instance methods in an object tagged with <see cref="LuaGlobalAttribute"/> as Lua global functions
/// </summary>
/// <param name="lua">The Lua VM to add the methods to</param>
/// <param name="o">The object to get the methods from</param>
public static void TaggedInstanceMethods(LuaInterface lua, object o)
{
#region Sanity checks
if (lua == null)
{
throw new ArgumentNullException("lua");
}
if (o == null)
{
throw new ArgumentNullException("o");
}
#endregion
foreach (MethodInfo method in o.GetType().GetMethods(BindingFlags.Instance | BindingFlags.Public))
{
foreach (LuaGlobalAttribute attribute in method.GetCustomAttributes(typeof(LuaGlobalAttribute), true))
{
if (string.IsNullOrEmpty(attribute.Name))
{
lua.RegisterFunction(method.Name, o, method); // CLR name
}
else
{
lua.RegisterFunction(attribute.Name, o, method); // Custom name
}
}
}
}
/*
* Sample test script that shows some of the capabilities of
* LuaInterface
*/
public static void Main()
{
Console.WriteLine("Starting interpreter...");
LuaInterface l = new LuaInterface();
// Pause so we can connect with the debugger
// Thread.Sleep(30000);
Console.WriteLine("Reading test.lua file...");
l.DoFile("test.lua");
double width = l.GetNumber("width");
double height = l.GetNumber("height");
string message = l.GetString("message");
double color_r = l.GetNumber("color.r");
double color_g = l.GetNumber("color.g");
double color_b = l.GetNumber("color.b");
Console.WriteLine("Printing values of global variables width, height and message...");
Console.WriteLine("width: " + width);
Console.WriteLine("height: " + height);
Console.WriteLine("message: " + message);
Console.WriteLine("Printing values of the 'color' table's fields...");
Console.WriteLine("color.r: " + color_r);
Console.WriteLine("color.g: " + color_g);
Console.WriteLine("color.b: " + color_b);
width = 150;
Console.WriteLine("Changing width's value and calling Lua function print to show it...");
l["width"] = width;
l.GetFunction("print").Call(width);
message = "LuaNet Interface Test";
Console.WriteLine("Changing message's value and calling Lua function print to show it...");
l["message"] = message;
l.GetFunction("print").Call(message);
color_r = 30;
color_g = 10;
color_b = 200;
Console.WriteLine("Changing color's fields' values and calling Lua function print to show it...");
l["color.r"] = color_r;
l["color.g"] = color_g;
l["color.b"] = color_b;
l.DoString("print(color.r,color.g,color.b)");
Console.WriteLine("Printing values of the tree table's fields...");
double leaf1 = l.GetNumber("tree.branch1.leaf1");
string leaf2 = l.GetString("tree.branch1.leaf2");
string leaf3 = l.GetString("tree.leaf3");
Console.WriteLine("leaf1: " + leaf1);
Console.WriteLine("leaf2: " + leaf2);
Console.WriteLine("leaf3: " + leaf3);
leaf1 = 30; leaf2 = "new leaf2";
Console.WriteLine("Changing tree's fields' values and calling Lua function print to show it...");
l["tree.branch1.leaf1"] = leaf1; l["tree.branch1.leaf2"] = leaf2;
l.DoString("print(tree.branch1.leaf1,tree.branch1.leaf2)");
Console.WriteLine("Returning values from Lua with 'return'...");
object[] vals = l.DoString("return 2,3");
Console.WriteLine("Returned: " + vals[0] + " and " + vals[1]);
Console.WriteLine("Calling a Lua function that returns multiple values...");
object[] vals1 = l.GetFunction("func").Call(2, 3);
Console.WriteLine("Returned: " + vals1[0] + " and " + vals1[1]);
Console.WriteLine("Creating a table and filling it from C#...");
l.NewTable("tab");
l.NewTable("tab.tab");
l["tab.a"] = "a!";
l["tab.b"] = 5.5;
l["tab.tab.c"] = 6.5;
l.DoString("print(tab.a,tab.b,tab.tab.c)");
Console.WriteLine("Setting a table as another table's field...");
l["tab.a"] = l["tab.tab"];
l.DoString("print(tab.a.c)");
Console.WriteLine("Registering a C# static method and calling it from Lua...");
// Pause so we can connect with the debugger
// Thread.Sleep(30000);
l.RegisterFunction("func1", null, typeof(TestLuaInterface).GetMethod("func"));
vals1 = l.GetFunction("func1").Call(2, 3);
Console.WriteLine("Returned: " + vals1[0]);
TestLuaInterface obj = new TestLuaInterface();
Console.WriteLine("Registering a C# instance method and calling it from Lua...");
l.RegisterFunction("func2", obj, typeof(TestLuaInterface).GetMethod("funcInstance"));
vals1 = l.GetFunction("func2").Call(2, 3);
Console.WriteLine("Returned: " + vals1[0]);
Console.WriteLine("Testing throwing an exception...");
obj.ThrowUncaughtException();
Console.WriteLine("Testing catching an exception...");
obj.ThrowException();
Console.WriteLine("Testing inheriting a method from Lua...");
obj.LuaTableInheritedMethod();
Console.WriteLine("Testing overriding a C# method with Lua...");
obj.LuaTableOverridedMethod();
Console.WriteLine("Stress test RegisterFunction (based on a reported bug)..");
obj.RegisterFunctionStressTest();
Console.WriteLine("Test structures...");
obj.TestStructs();
Console.WriteLine("Test Nullable types...");
obj.TestNullable();
Console.WriteLine("Test functions...");
obj.TestFunctions();
Console.WriteLine("Test event exceptions...");
obj.TestEventException();
Console.Write("Press any key to continue...");
Console.ReadKey(true);
//Console.ReadLine();
}