Added command help and fixed a general help command implementation.

src/com/massivecraft/mcore1/cmd/HelpCommand.java

@@ -0,0 +1,53 @@
+package com.massivecraft.mcore1.cmd;
+
+import java.util.ArrayList;
+
+import com.massivecraft.mcore1.MPlugin;
+import com.massivecraft.mcore1.cmd.MCommand;
+
+public class HelpCommand extends MCommand
+{
+	private HelpCommand()
+	{
+		super();
+		this.addAliases("?", "h", "help");
+		this.setDesc("");
+		this.addOptionalArg("page","1");
+	}
+	
+	@Override
+	public void perform()
+	{
+		if (this.commandChain.size() == 0) return;
+		MCommand parentCommand = this.commandChain.get(this.commandChain.size()-1);
+		
+		ArrayList<String> lines = new ArrayList<String>();
+		
+		lines.addAll(p().txt.parse(parentCommand.getHelp()));
+		
+		for(MCommand subCommand : parentCommand.getSubCommands())
+		{
+			if (subCommand.visibleTo(sender))
+			{
+				lines.add(subCommand.getUseageTemplate(this.commandChain, true));
+			}
+		}
+		
+		Integer pagenumber = this.argAs(0, Integer.class, 1);
+		if (pagenumber == null) return;
+		sendMessage(p().txt.getPage(lines, pagenumber, "Help for command \""+parentCommand.getAliases().get(0)+"\""));
+	}
+
+	@Override
+	public MPlugin p()
+	{
+		if (this.commandChain.size() == 0) return null;
+		return this.commandChain.get(this.commandChain.size()-1).p();
+	}
+	
+	private static HelpCommand instance = new HelpCommand();
+	public static HelpCommand getInstance()
+	{
+		return instance;
+	}
+}

src/com/massivecraft/mcore1/cmd/MCommand.java

@@ -95,6 +95,13 @@ public abstract class MCommand
 	public String getDescPermission() { return this.descPermission; }
 	public void setDescPermission(String val) { this.descPermission = val; }
 	
+	// FIELD: help
+	// This is a multi-line help text for the command.
+	protected List<String> help = new ArrayList<String>();
+	public void setHelp(List<String> val) { this.help = val; }
+	public void setHelp(String... val) { this.help = Arrays.asList(val); }
+	public List<String> getHelp() { return this.help; }
+	
 	// FIELD: visibilityMode
 	protected VisibilityMode visibilityMode;
 	public VisibilityMode getVisibilityMode() { return this.visibilityMode; }