Added /execmulti and /execif commands.

Added a way to execute multiple commands with a single command and a conditional command.
The documentation will be updated soon.

MinecraftClient/Commands/ExecIf.cs

@@ -0,0 +1,98 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using DynamicExpresso;
+
+namespace MinecraftClient.Commands
+{
+    class ExecIf : Command
+    {
+        public override string CmdName { get { return "execif"; } }
+        public override string CmdUsage { get { return "execif <condition/expression> ---> <command>"; } }
+        public override string CmdDesc { get { return "cmd.execif.desc"; } }
+
+        public override string Run(McClient handler, string command, Dictionary<string, object> localVars)
+        {
+            if (hasArg(command))
+            {
+                string commandsString = getArg(command);
+
+                if (!commandsString.Contains("--->"))
+                    return GetCmdDescTranslated();
+
+                string[] parts = commandsString.Split("--->", StringSplitOptions.TrimEntries)
+                    .ToList()
+                    .ConvertAll(command => command.Trim())
+                    .ToArray();
+
+                if (parts.Length == 0)
+                    return GetCmdDescTranslated();
+
+                string expressionText = parts[0];
+                string resultCommand = parts[1];
+
+                try
+                {
+                    var interpreter = new Interpreter();
+                    interpreter.SetVariable("MCC", handler);
+
+                    foreach (KeyValuePair<string, object> entry in Settings.GetVariables())
+                        interpreter.SetVariable(entry.Key, entry.Value);
+
+                    var result = interpreter.Eval<bool>(expressionText);
+
+                    if (result != null)
+                    {
+                        bool shouldExec = result;
+
+                        /*if (result is bool)
+                            shouldExec = (bool)result;
+                        else if (result is string)
+                            shouldExec = !string.IsNullOrEmpty((string)result) && ((string)result).Trim().Contains("true", StringComparison.OrdinalIgnoreCase);
+                        else if (result is int)
+                            shouldExec = (int)result > 0;
+                        else if (result is double)
+                            shouldExec = (double)result > 0;
+                        else if (result is float)
+                            shouldExec = (float)result > 0;
+                        else if (result is Int16)
+                            shouldExec = (Int16)result > 0;
+                        else if (result is Int32)
+                            shouldExec = (Int32)result > 0;
+                        else if (result is Int64)
+                            shouldExec = (Int64)result > 0;
+                        */
+
+                        handler.Log.Debug("[Execif] Result Type: " + result.GetType().Name);
+
+                        if (shouldExec)
+                        {
+                            string output = "";
+                            handler.PerformInternalCommand(resultCommand, ref output);
+
+                            if (string.IsNullOrEmpty(output))
+                                handler.Log.Debug(Translations.TryGet("cmd.execif.executed_no_output", expressionText, resultCommand));
+                            else handler.Log.Debug(Translations.TryGet("cmd.execif.executed", expressionText, resultCommand, output));
+
+                            return "";
+                        }
+
+                        return "";
+                    }
+                }
+                catch (Exception e)
+                {
+                    handler.Log.Error(Translations.TryGet("cmd.execif.error_occured", command));
+                    handler.Log.Error(Translations.TryGet("cmd.execif.error", e.Message));
+                    return "";
+                }
+
+                return GetCmdDescTranslated();
+            }
+
+            return GetCmdDescTranslated();
+        }
+
+
+    }
+}

MinecraftClient/Commands/ExecMulti.cs

@@ -0,0 +1,46 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+
+namespace MinecraftClient.Commands
+{
+    class ExecMulti : Command
+    {
+        public override string CmdName { get { return "execmulti"; } }
+        public override string CmdUsage { get { return "execmulti <command 1> -> <command2> -> <command 3> -> ..."; } }
+        public override string CmdDesc { get { return "cmd.execmulti.desc"; } }
+
+        public override string Run(McClient handler, string command, Dictionary<string, object> localVars)
+        {
+            if (hasArg(command))
+            {
+                string commandsString = getArg(command);
+
+                if (commandsString.Contains("execmulti", StringComparison.OrdinalIgnoreCase) || commandsString.Contains("execif", StringComparison.OrdinalIgnoreCase))
+                    return Translations.TryGet("cmd.execmulti.prevent");
+
+                IEnumerable<string> commands = commandsString.Split("->", StringSplitOptions.TrimEntries)
+                    .ToList()
+                    .FindAll(command => !string.IsNullOrEmpty(command));
+
+                foreach (string cmd in commands)
+                {
+                    string output = "";
+                    handler.PerformInternalCommand(cmd, ref output);
+
+                    string log = Translations.TryGet(
+                        "cmd.execmulti.executed", cmd,
+                        string.IsNullOrEmpty(output) ? Translations.TryGet("cmd.execmulti.no_result") : Translations.TryGet("cmd.execmulti.result", output));
+
+                    if (output.Contains("unknown command", StringComparison.OrdinalIgnoreCase))
+                        handler.Log.Error(log);
+                    else handler.Log.Info(log);
+                }
+
+                return "";
+            }
+
+            return GetCmdDescTranslated();
+        }
+    }
+}