Initial commit

Commands/HelpCommand.cpp

@@ -0,0 +1,73 @@
+#include "stdafx.h"
+#include "HelpCommand.h"
+#include "ConsoleCommandDispatcher.h"
+
+#include "../../Minecraft.Client/ConsoleInputSource.h"
+#include <sstream>
+#include <vector>
+#include <algorithm>
+
+HelpCommand::HelpCommand(ConsoleCommandDispatcher *dispatcher)
+	: dispatcher(dispatcher)
+{
+}
+
+void HelpCommand::execute(const wstring& args, ConsoleInputSource *src, MinecraftServer *server)
+{
+	const map<wstring, ServerCommand *>& commandMap = dispatcher->getCommands();
+
+	vector<ServerCommand *> list;
+	for (AUTO_VAR(it, commandMap.begin()); it != commandMap.end(); ++it)
+		list.push_back(it->second);
+
+	sort(list.begin(), list.end(), [](ServerCommand *a, ServerCommand *b) {
+		return a->getName() < b->getName();
+	});
+
+	int itemsPerPage = 7;
+	int totalPages = (int)list.size() / itemsPerPage;
+	int page = 0;
+
+	wstringstream ss(args);
+	wstring arg;
+	if (ss >> arg)
+	{
+		wstringstream numTest(arg);
+		int num;
+		if (numTest >> num && numTest.eof())
+		{
+			if (num < 1) num = 1;
+			if (num > totalPages + 1) num = totalPages + 1;
+			page = num - 1;
+		}
+		else
+		{
+			for (size_t i = 0; i < arg.size(); i++)
+				arg[i] = towlower(arg[i]);
+
+			AUTO_VAR(it, commandMap.find(arg));
+			if (it != commandMap.end())
+			{
+				src->info(L"\u00A7cUsage: " + it->second->getUsage());
+				return;
+			}
+
+			src->warn(L"\u00A7cUnknown command. Try /help for a list of commands");
+			return;
+		}
+	}
+
+	int endIndex = (int)list.size();
+	if ((page + 1) * itemsPerPage < endIndex)
+		endIndex = (page + 1) * itemsPerPage;
+
+	wchar_t buf[256];
+	swprintf_s(buf, 256, L"\u00A72--- Showing help page %d of %d (/help <page>) ---", page + 1, totalPages + 1);
+	src->info(wstring(buf));
+
+	for (int k = page * itemsPerPage; k < endIndex; k++)
+		src->info(list[k]->getUsage());
+
+	if (page == 0)
+		src->info(L"\u00A7aTip: Use the <tab> key while typing a command to auto-complete the command or its arguments");
+}