Added LUA timer module

Artemis/Artemis/Artemis.csproj

@@ -518,6 +518,8 @@
     <Compile Include="Profiles\Lua\Modules\LuaLayerModule.cs" />
     <Compile Include="Profiles\Lua\Modules\LuaMouseModule.cs" />
     <Compile Include="Profiles\Lua\Modules\LuaProfileModule.cs" />
+    <Compile Include="Profiles\Lua\Modules\Timer\LuaTimer.cs" />
+    <Compile Include="Profiles\Lua\Modules\LuaTimerModule.cs" />
     <Compile Include="Profiles\Lua\Wrappers\LuaDrawWrapper.cs" />
     <Compile Include="Profiles\Lua\Wrappers\LuaLayerWrapper.cs" />
     <Compile Include="Profiles\ProfileModel.cs" />

Artemis/Artemis/Managers/LuaManager.cs

@@ -21,8 +21,8 @@ namespace Artemis.Managers
         private readonly DeviceManager _deviceManager;
         private readonly IKernel _kernel;
         private readonly ILogger _logger;
-        private List<LuaModule> _luaModules;
         private readonly Script _luaScript;
+        private List<LuaModule> _luaModules;
         private FileSystemWatcher _watcher;
 
         public LuaManager(IKernel kernel, ILogger logger, DeviceManager deviceManager)
@@ -52,17 +52,15 @@ namespace Artemis.Managers
 
             // Get new instances of all modules
             _luaModules = _kernel.Get<List<LuaModule>>();
-            ProfileModule = (LuaProfileModule)_luaModules.First(m => m.ModuleName == "Profile");
-            EventsModule = (LuaEventsModule)_luaModules.First(m => m.ModuleName == "Events");
+            ProfileModule = (LuaProfileModule) _luaModules.First(m => m.ModuleName == "Profile");
+            EventsModule = (LuaEventsModule) _luaModules.First(m => m.ModuleName == "Events");
 
             // Setup new state
             _luaScript.Options.DebugPrint = LuaPrint;
 
             // Insert each module into the script's globals
             foreach (var luaModule in _luaModules)
-            {                
                 _luaScript.Globals[luaModule.ModuleName] = luaModule;
-            }
 
             // If there is no LUA script, don't bother executing the string
             if (ProfileModel.LuaScript.IsNullOrEmpty())
@@ -74,6 +72,7 @@ namespace Artemis.Managers
                 {
                     lock (_luaScript)
                     {
+                        UpdateLuaSource(ProfileModel);
                         _luaScript.DoString(ProfileModel.LuaScript);
                     }
                 }
@@ -116,7 +115,6 @@ namespace Artemis.Managers
             }
 
             if (EventsModule != null)
-            {
                 lock (EventsModule.InvokeLock)
                 {
                     lock (_luaScript)
@@ -124,14 +122,52 @@ namespace Artemis.Managers
                         _luaScript.DoString("");
                     }
                 }
-            }
             else
-            {
                 lock (_luaScript)
                 {
                     _luaScript.DoString("");
                 }
         }
+
+        /// <summary>
+        ///     Safely call a function on the active script
+        /// </summary>
+        /// <param name="function"></param>
+        /// <param name="args"></param>
+        public void Call(DynValue function, DynValue[] args = null)
+        {
+            if (EventsModule == null)
+                return;
+
+            try
+            {
+                lock (EventsModule.InvokeLock)
+                {
+                    lock (_luaScript)
+                    {
+                        if (args != null)
+                            _luaScript.Call(function, args);
+                        else
+                            _luaScript.Call(function);
+                    }
+                }
+            }
+            catch (ArgumentException e)
+            {
+                _logger.Error("[{0}-LUA]: Error: {1}", ProfileModel.Name, e.Message);
+            }
+            catch (InternalErrorException e)
+            {
+                _logger.Error("[{0}-LUA]: Error: {1}", ProfileModel.Name, e.DecoratedMessage);
+            }
+            catch (SyntaxErrorException e)
+            {
+                _logger.Error("[{0}-LUA]: Error: {1}", ProfileModel.Name, e.DecoratedMessage);
+            }
+            catch (ScriptRuntimeException e)
+            {
+                _logger.Error("[{0}-LUA]: Error: {1}", ProfileModel.Name, e.DecoratedMessage);
+            }
         }
 
         #region Private lua functions
@@ -143,6 +179,20 @@ namespace Artemis.Managers
 
         #endregion
 
+        /// <summary>
+        ///     Updates a profile's LUA script to be compatible with the latest version of Artemis, if needed.
+        ///     This function obviously won't fix completely custom profiles but it'll fix copied LUA.
+        /// </summary>
+        /// <param name="profileModel"></param>
+        private static void UpdateLuaSource(ProfileModel profileModel)
+        {
+            // 1.7.1.0 - Events cleanup
+            profileModel.LuaScript = profileModel.LuaScript.Replace("function updateHandler(profile, eventArgs)",
+                "function updateHandler(eventArgs)");
+            profileModel.LuaScript = profileModel.LuaScript.Replace("function drawHandler(profile, eventArgs)",
+                "function drawHandler(eventArgs)");
+        }
+
         #region Editor
 
         public void OpenEditor()

Artemis/Artemis/Profiles/Lua/Modules/LuaTimerModule.cs

@@ -0,0 +1,43 @@
+using System.Collections.Generic;
+using Artemis.Managers;
+using Artemis.Profiles.Lua.Modules.Timer;
+using MoonSharp.Interpreter;
+
+namespace Artemis.Profiles.Lua.Modules
+{
+    [MoonSharpUserData]
+    public class LuaTimerModule : LuaModule
+    {
+        private readonly List<LuaTimer> _timers;
+
+        public LuaTimerModule(LuaManager luaManager) : base(luaManager)
+        {
+            _timers = new List<LuaTimer>();
+        }
+
+        public override string ModuleName => "Timer";
+
+        public override void Dispose()
+        {
+            foreach (var luaTimer in _timers)
+                luaTimer.Dispose();
+
+            _timers.Clear();
+        }
+
+        public LuaTimer SetTimer(DynValue function, int interval, int timesToExecute, params DynValue[] args)
+        {
+            var luaTimer = new LuaTimer(this, function, interval, timesToExecute, args);
+            _timers.Add(luaTimer);
+            return luaTimer;
+        }
+
+        public void RemoveTimer(LuaTimer luaTimer)
+        {
+            if (_timers.Contains(luaTimer))
+                _timers.Remove(luaTimer);
+            
+            luaTimer.Dispose();
+        }
+    }
+}

Artemis/Artemis/Profiles/Lua/Modules/Timer/LuaTimer.cs

@@ -0,0 +1,59 @@
+using System;
+using System.Timers;
+using MoonSharp.Interpreter;
+
+namespace Artemis.Profiles.Lua.Modules.Timer
+{
+    [MoonSharpUserData]
+    public class LuaTimer : IDisposable
+    {
+        private readonly DynValue[] _args;
+        private readonly DynValue _function;
+        private readonly System.Timers.Timer _timer;
+        private readonly LuaTimerModule _timerModule;
+        private readonly int _timesToExecute;
+        private int _timesExecuted;
+
+        public LuaTimer(LuaTimerModule timerModule, DynValue function, int interval, int timesToExecute,
+            params DynValue[] args)
+        {
+            _timerModule = timerModule;
+            _function = function;
+            _timesToExecute = timesToExecute;
+            _args = args;
+            _timesExecuted = 0;
+
+            // Setup timer
+            _timer = new System.Timers.Timer(interval);
+            _timer.Elapsed += TimerOnElapsed;
+            _timer.Start();
+        }
+
+        public void Dispose()
+        {
+            _timer?.Stop();
+            _timer?.Dispose();
+        }
+
+        public void Stop()
+        {
+            _timerModule.RemoveTimer(this);
+        }
+
+        private void TimerOnElapsed(object sender, ElapsedEventArgs e)
+        {
+            if (_args != null)
+                _timerModule.LuaManager.Call(_function, _args);
+            else
+                _timerModule.LuaManager.Call(_function);
+
+            // Don't keep track of execution if times is set to 0 (infinite)
+            if (_timesToExecute <= 0)
+                return;
+
+            _timesExecuted++;
+            if (_timesExecuted >= _timesToExecute)
+                _timerModule.RemoveTimer(this);
+        }
+    }
+}

Artemis/Artemis/Resources/lua-placeholder.lua

@@ -14,7 +14,7 @@
 -- changes are applied to the profile and the script is restarted.
 
 -- This event is raised after every profile update, before drawing.
-function updateHandler(profile, eventArgs)
+function updateHandler(eventArgs)
 	-- In this example we only want to update once per frame when the keyboard is 
 	-- updated. If you don't do this the updateHandler will trigger on every
 	-- device's update.
@@ -26,7 +26,7 @@ function updateHandler(profile, eventArgs)
 end
 
 -- This event is raised after every profile draw, after updating.
-function drawHandler(profile, eventArgs)
+function drawHandler(eventArgs)
 	-- In this example we only want to draw to the keyboard. Each device has it's
 	-- own drawing event
     if eventArgs.DeviceType != "keyboard" then