/// <summary>
/// Sends dialog select message to client, showing a message and a
/// list of options to select from.
/// </summary>
/// <remarks>
/// Select can take an arbitrary amount of options.
///
/// Parameters:
/// - string message
/// - string options...
///
/// Result:
/// The number of the selected option, starting from 1.
/// Returns 0 on error.
/// </remarks>
/// <param name="L"></param>
/// <returns></returns>
private int select(IntPtr L)
{
// Check arguments and return 0 on error
var argc = Melua.lua_gettop(L);
if (argc == 0)
{
Log.Warning("select: No arguments.");
Melua.lua_pushinteger(L, 0);
return(1);
}
var conn = this.GetConnectionFromState(L);
// Get arguments, first argument is the message, everything afterwards
// is one option to select from.
var args = new string[argc];
for (int i = 1; i <= argc; ++i)
{
var arg = Melua.luaL_checkstring(L, i);
this.HandleCustomCode(conn, ref arg);
args[i - 1] = arg;
}
Melua.lua_pop(L, argc);
this.AttachNpcName(conn, ref args[0]);
Send.ZC_DIALOG_SELECT(conn, args);
return(Melua.lua_yield(L, 1));
}
/// <summary>
/// Sends dialog numberrange message, showing a message and a small text field,
/// for the user to put in a number.
/// </summary>
/// <remarks>
/// NUMBERRANGE uses CZ_DIALOG_SELECT for its response,
/// which means the number range is that of a byte, 0~255.
///
/// Parameters:
/// - string message
/// - int min (optional, defaults to 0)
/// - int max (optional, defaults to 255)
///
/// Result:
/// The number put in by the user.
/// Returns 0 on error.
/// </remarks>
/// <param name="L"></param>
/// <returns></returns>
private int numinput(IntPtr L)
{
// Check arguments and return 0 on error
var argc = Melua.lua_gettop(L);
if (argc == 0)
{
Log.Warning("numinput: No arguments.");
Melua.lua_pushinteger(L, 0);
return(1);
}
var conn = this.GetConnectionFromState(L);
int min = 0, max = 255;
// Get arguments
var msg = Melua.luaL_checkstring(L, 1);
if (argc >= 3)
{
min = Melua.luaL_checkinteger(L, 2);
max = Melua.luaL_checkinteger(L, 3);
}
Melua.lua_pop(L, argc);
this.HandleCustomCode(conn, ref msg);
this.AttachNpcName(conn, ref msg);
Send.ZC_DIALOG_NUMBERRANGE(conn, msg, min, max);
return(Melua.lua_yield(L, 1));
}
/// <summary>
/// Pushes the arguments onto the Lua stack.
/// </summary>
/// <param name="NL"></param>
/// <param name="args"></param>
private static void PushArguments(IntPtr NL, params object[] args)
{
foreach (var arg in args)
{
switch (arg)
{
case byte v: Melua.lua_pushinteger(NL, v); break;
case bool v: Melua.lua_pushboolean(NL, v); break;
case short v: Melua.lua_pushinteger(NL, v); break;
case int v: Melua.lua_pushinteger(NL, v); break;
case float v: Melua.lua_pushnumber(NL, v); break;
case double v: Melua.lua_pushnumber(NL, v); break;
case string v: Melua.lua_pushstring(NL, v); break;
default:
{
Log.Warning("ScriptManager.PushArguments: Invalid argument type '{0}', pushing 'int 0' instead.", arg.GetType().Name);
Melua.lua_pushinteger(NL, 0);
break;
}
}
}
}
/// <summary>
/// Removes the specified amount of items with the given id from
/// character's inventory.
/// </summary>
/// <remarks>
/// Parameters:
/// - int itemId
/// - int amount
///
/// Result:
/// - int removedCount
/// </remarks>
/// <param name="L"></param>
/// <returns></returns>
private int removeitem(IntPtr L)
{
var conn = this.GetConnectionFromState(L);
var character = conn.SelectedCharacter;
var itemId = Melua.luaL_checkinteger(L, 1);
var amount = Melua.luaL_checkinteger(L, 2);
Melua.lua_pop(L, 2);
var itemData = ChannelServer.Instance.Data.ItemDb.Find(itemId);
if (itemData == null)
{
return(Melua.melua_error(L, "Unknown item id."));
}
amount = Math.Max(0, amount);
var removed = character.Inventory.Remove(itemId, amount, InventoryItemRemoveMsg.Given);
Melua.lua_pushinteger(L, removed);
return(1);
}
/// <summary>
/// Returns table, containing information about the current date/time.
/// </summary>
/// <remarks>
/// Result:
/// {
/// integer year, -- Current year
/// integer month, -- Current month
/// integer day, -- Current day
/// integer weekday, -- Day of the week (0-6), starting on Sunday
/// integer yearday, -- Day of the current year
/// integer hour, -- Current hours (0-23)
/// integer min, -- Current minutes (0-59)
/// integer sec, -- Current seconds (0-59)
/// integer msec, -- Current milliseconds (0-999)
/// boolean isdst, -- Is Daylight Saving Time?
/// integer unixts, -- Unix timestamp
/// }
/// </remarks>
/// <param name="L"></param>
/// <returns></returns>
private int gettime(IntPtr L)
{
var now = DateTime.Now;
// TODO: Could a general table generation like this be cached?
Melua.lua_newtable(L);
Melua.lua_pushstring(L, "year");
Melua.lua_pushinteger(L, now.Year);
Melua.lua_settable(L, -3);
Melua.lua_pushstring(L, "month");
Melua.lua_pushinteger(L, now.Month);
Melua.lua_settable(L, -3);
Melua.lua_pushstring(L, "day");
Melua.lua_pushinteger(L, now.Day);
Melua.lua_settable(L, -3);
Melua.lua_pushstring(L, "weekday");
Melua.lua_pushinteger(L, (int)now.DayOfWeek);
Melua.lua_settable(L, -3);
Melua.lua_pushstring(L, "yearday");
Melua.lua_pushinteger(L, now.DayOfYear);
Melua.lua_settable(L, -3);
Melua.lua_pushstring(L, "hour");
Melua.lua_pushinteger(L, now.Hour);
Melua.lua_settable(L, -3);
Melua.lua_pushstring(L, "min");
Melua.lua_pushinteger(L, now.Minute);
Melua.lua_settable(L, -3);
Melua.lua_pushstring(L, "sec");
Melua.lua_pushinteger(L, now.Second);
Melua.lua_settable(L, -3);
Melua.lua_pushstring(L, "msec");
Melua.lua_pushinteger(L, now.Millisecond);
Melua.lua_settable(L, -3);
Melua.lua_pushstring(L, "isdst");
Melua.lua_pushboolean(L, now.IsDaylightSavingTime());
Melua.lua_settable(L, -3);
Melua.lua_pushstring(L, "unixts");
Melua.lua_pushinteger(L, (int)(now.ToUniversalTime().Subtract(UnixEpoch)).TotalSeconds);
Melua.lua_settable(L, -3);
return(1);
}
public void typename()
{
var L = Melua.luaL_newstate();
Melua.lua_pushinteger(L, 123);
Assert.Equal("number", Melua.luaL_typename(L, -1));
Melua.lua_pushstring(L, "123");
Assert.Equal("string", Melua.luaL_typename(L, -1));
Melua.lua_newtable(L);
Assert.Equal("table", Melua.luaL_typename(L, -1));
}
public void type()
{
var L = Melua.luaL_newstate();
Melua.lua_pushinteger(L, 123);
Assert.Equal(Melua.LUA_TNUMBER, Melua.lua_type(L, -1));
Melua.lua_pushstring(L, "123");
Assert.Equal(Melua.LUA_TSTRING, Melua.lua_type(L, -1));
Melua.lua_newtable(L);
Assert.Equal(Melua.LUA_TTABLE, Melua.lua_type(L, -1));
}
/// <summary>
/// Returns a table with information about the player.
/// </summary>
/// <remarks>
/// Result:
/// {
/// string name, -- Character's name
/// string teamName, -- Character's team name
/// integer gender, -- Character's gender
/// integer level, -- Character's level
/// integer hp, -- Character's HP
/// integer maxHp, -- Character's max HP
/// integer sp, -- Character's SP
/// integer maxSp, -- Character's max SP
/// integer stamina, -- Character's stamina
/// integer hair, -- Character's hair
/// }
/// </remarks>
/// <param name="L"></param>
/// <returns></returns>
private int getpc(IntPtr L)
{
var conn = this.GetConnectionFromState(L);
var character = conn.SelectedCharacter;
Melua.lua_newtable(L);
Melua.lua_pushstring(L, "name");
Melua.lua_pushstring(L, character.Name);
Melua.lua_settable(L, -3);
Melua.lua_pushstring(L, "teamName");
Melua.lua_pushstring(L, character.TeamName);
Melua.lua_settable(L, -3);
Melua.lua_pushstring(L, "gender");
Melua.lua_pushinteger(L, (int)character.Gender);
Melua.lua_settable(L, -3);
Melua.lua_pushstring(L, "level");
Melua.lua_pushinteger(L, character.Level);
Melua.lua_settable(L, -3);
Melua.lua_pushstring(L, "hp");
Melua.lua_pushinteger(L, character.Hp);
Melua.lua_settable(L, -3);
Melua.lua_pushstring(L, "maxHp");
Melua.lua_pushinteger(L, character.MaxHp);
Melua.lua_settable(L, -3);
Melua.lua_pushstring(L, "sp");
Melua.lua_pushinteger(L, character.Sp);
Melua.lua_settable(L, -3);
Melua.lua_pushstring(L, "maxSp");
Melua.lua_pushinteger(L, character.MaxSp);
Melua.lua_settable(L, -3);
Melua.lua_pushstring(L, "stamina");
Melua.lua_pushinteger(L, character.Stamina);
Melua.lua_settable(L, -3);
Melua.lua_pushstring(L, "hair");
Melua.lua_pushinteger(L, character.Hair);
Melua.lua_settable(L, -3);
return(1);
}
/// <summary>
/// Returns amount of items with the given id in character's inventory.
/// </summary>
/// <remarks>
/// Parameters:
/// - int itemId
///
/// Result:
/// - int amount
/// </remarks>
/// <param name="L"></param>
/// <returns></returns>
private int countitem(IntPtr L)
{
var conn = this.GetConnectionFromState(L);
var character = conn.SelectedCharacter;
var itemId = Melua.luaL_checkinteger(L, 1);
Melua.lua_pop(L, 1);
var result = character.Inventory.CountItem(itemId);
Melua.lua_pushinteger(L, result);
return(1);
}
public void tostring()
{
var L = Melua.luaL_newstate();
Melua.lua_pushinteger(L, 123);
var str = Melua.lua_tostring(L, -1);
Assert.Equal("123", str);
Melua.lua_newtable(L);
Assert.Equal(null, Melua.lua_tostring(L, -1));
Melua.lua_pushstring(L, "foobar");
Assert.Equal("foobar", Melua.lua_tostring(L, -1));
}
/// <summary>
/// Resumes script after yielding.
/// </summary>
/// <param name="conn"></param>
/// <param name="argument"></param>
public void Resume(ChannelConnection conn, params object[] arguments)
{
if (conn.ScriptState.LuaThread == null)
{
Send.ZC_DIALOG_CLOSE(conn);
Log.Warning("ScriptManager: Resume on empty ScriptState from user '{0}'.", conn.Account.Name);
return;
}
var NL = conn.ScriptState.LuaThread.L;
var argc = (arguments != null ? arguments.Length : 0);
// Reset current shop in case we came from one.
conn.ScriptState.CurrentShop = null;
if (argc != 0)
{
foreach (var arg in arguments)
{
if (arg is byte)
{
Melua.lua_pushinteger(NL, (byte)arg);
}
else if (arg is short)
{
Melua.lua_pushinteger(NL, (short)arg);
}
else if (arg is int)
{
Melua.lua_pushinteger(NL, (int)arg);
}
else if (arg is string)
{
Melua.lua_pushstring(NL, (string)arg);
}
else
{
Log.Warning("ScriptManager.Resume: Invalid argument type '{0}'.", arg.GetType().Name);
Melua.lua_pushinteger(NL, 0);
}
}
// If arguments were passed, we can assume we're coming from
// a selection handler, which's windows don't disappear when
// sending the next message. So let's close it before
// continuing.
Send.ZC_DIALOG_CLOSE(conn);
}
var result = Melua.lua_resume(NL, argc);
// Log error if result is not success or yield
if (result != 0 && result != Melua.LUA_YIELD)
{
Log.Error("ScriptManager.Call: Error while resuming script for {0}.\n{1}", conn.Account.Name, Melua.lua_tostring(NL, -1));
result = 0; // Set to 0 to close dialog on error
}
// Close dialog if end of function was reached
if (result == 0)
{
// Only close from here if the end was reached after an
// argument-less resume, since close is already called
// from the argument handling to get rid of the selection
// dialog.
if (argc == 0)
{
Send.ZC_DIALOG_CLOSE(conn);
}
conn.ScriptState.Reset();
}
}
/// <summary>
/// Gets or sets a scripting variable.
/// </summary>
/// <remarks>
/// Scripting variables are separate from Lua variables and exist
/// across script and playing sessions. How the variable is saved
/// depends on the used prefix.
///
/// Variable names may contain the following characters, apart from
/// the prefixes, and must start with a character:
/// abcdefghijklmnopqrstuvwxyz0123456789_
///
/// Prefixes:
/// "" - Permanent variable attached to the character.
/// "@" - Temporary variable attached to the character.
/// "#" - Permanent variable attached to the account.
/// "$" - Permanent global variable.
/// "$@" - Temporary global variable.
///
/// Parameters:
/// - string variableName
/// - (optional) T value
///
/// Result:
/// - T value
/// </remarks>
/// <param name="L"></param>
/// <returns></returns>
private int var(IntPtr L)
{
var conn = this.GetConnectionFromState(L);
var character = conn.SelectedCharacter;
// Get parameters
var argc = Melua.lua_gettop(L);
var name = Melua.luaL_checkstring(L, 1).Trim();
object value = null;
if (argc == 2)
{
if (Melua.lua_isnumber(L, 2))
{
value = Melua.lua_tonumber(L, 2);
}
else if (Melua.lua_isstring(L, 2))
{
value = Melua.lua_tostring(L, 2);
}
else if (Melua.lua_isboolean(L, 2))
{
value = Melua.lua_toboolean(L, 2);
}
else
{
return(Melua.melua_error(L, "Unsupported variable type."));
}
}
Melua.lua_pop(L, argc);
// Get variable manager and trim name
VariableManager vars;
if (name.StartsWith("$@"))
{
vars = this.Variables.Temp;
name = name.Substring(2);
}
else if (name.StartsWith("$"))
{
vars = this.Variables.Perm;
name = name.Substring(1);
}
else if (name.StartsWith("#"))
{
vars = conn.Account.Variables.Perm;
name = name.Substring(1);
}
else if (name.StartsWith("@"))
{
vars = character.Variables.Temp;
name = name.Substring(1);
}
else
{
vars = character.Variables.Perm;
}
// Check name syntax, if we want to add more prefixes later on,
// we can't have special characters in names.
if (!VarNameCheck.IsMatch(name))
{
return(Melua.melua_error(L, "Invalid variable name."));
}
// Update or get value
if (value == null)
{
value = vars[name];
}
else
{
vars[name] = value;
}
// Push return value
if (value == null)
{
Melua.lua_pushnil(L);
}
else if (value is string)
{
Melua.lua_pushstring(L, (string)value);
}
else if (value is double)
{
Melua.lua_pushnumber(L, (double)value);
}
else if (value is float)
{
Melua.lua_pushnumber(L, (float)value);
}
else if (value is int)
{
Melua.lua_pushinteger(L, (int)value);
}
else if (value is bool)
{
Melua.lua_pushboolean(L, (bool)value);
}
else
{
return(Melua.melua_error(L, "Unsupported variable type '{0}'.", value.GetType().Name));
}
return(1);
}
public void userdata()
{
var L = Melua.luaL_newstate();
Melua.melua_opensafelibs(L);
var n1 = 0;
// Ctor
Melua.luaL_register(L, "Test", new[]
{
new MeluaLib.Melua.LuaLib("new", NL =>
{
var test = new UserDataTest()
{
N1 = 1234
};
var size = Marshal.SizeOf(test);
var ptr = Melua.lua_newuserdata(L, size);
Melua.luaL_getmetatable(L, "Melua.Test");
Melua.lua_setmetatable(L, -2);
Marshal.StructureToPtr(test, ptr, true);
return(1);
})
});
// Meta table for test userdata type
Melua.luaL_newmetatable(L, "Melua.Test");
Melua.lua_pushstring(L, "__index");
Melua.lua_pushvalue(L, -2);
Melua.lua_settable(L, -3);
Melua.luaL_register(L, null, new[]
{
new MeluaLib.Melua.LuaLib("setN1", _ =>
{
var ptr = Melua.luaL_checkudata(L, 1, "Melua.Test");
var val = Melua.luaL_checkinteger(L, 2);
// Either marshal back and forth or use unsafe
var test = (UserDataTest)Marshal.PtrToStructure(ptr, typeof(UserDataTest));
test.N1 = val;
Marshal.StructureToPtr(test, ptr, true);
//unsafe
//{
// var test = (UserDataTest*)ptr;
// test->N1 = val;
//}
return(0);
}),
new MeluaLib.Melua.LuaLib("getN1", _ =>
{
var ptr = Melua.luaL_checkudata(L, 1, "Melua.Test");
var test = (UserDataTest)Marshal.PtrToStructure(ptr, typeof(UserDataTest));
Melua.lua_pushinteger(L, test.N1);
return(1);
})
});
// Test method
Melua.melua_register(L, "testgetn1", _ =>
{
n1 = Melua.lua_tointeger(L, -1);
return(0);
});
var result = Melua.luaL_dostring(L, @"
local t = Test.new()
t:setN1(5678)
testgetn1(t:getN1())
");
if (result != 0)
{
throw new Exception(Melua.lua_tostring(L, -1));
}
Assert.Equal(n1, 5678);
}