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Added a //help command.

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This commit is contained in:
TomyLobo
2011-12-13 09:23:21 +01:00
parent c4031c38ba
commit 05404b005d
3 changed files with 115 additions and 14 deletions
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74
src/main/java/com/sk89q/minecraft/util/commands/CommandsManager.java
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@ -87,6 +87,12 @@ public abstract class CommandsManager<T> {
*/
protected Injector injector;
/**
* Mapping of commands (not including aliases) with a description. This
* is only for top level commands.
*/
protected Map<String, String> helpMessages = new HashMap<String, String>();
/**
* Register an class that contains commands (denoted by {@link Command}.
* If no dependency injector is specified, then the methods of the
@ -189,11 +195,32 @@ public abstract class CommandsManager<T> {
// Build a list of commands and their usage details, at least for
// root level commands
if (parent == null) {
if (cmd.usage().length() == 0) {
descs.put(cmd.aliases()[0], cmd.desc());
final String commandName = cmd.aliases()[0];
final String desc = cmd.desc();
final String usage = cmd.usage();
if (usage.length() == 0) {
descs.put(commandName, desc);
} else {
descs.put(cmd.aliases()[0], cmd.usage() + " - " + cmd.desc());
descs.put(commandName, usage + " - " + desc);
}
String help = cmd.help();
if (help.length() == 0) {
help = desc;
}
final CharSequence arguments = getArguments(cmd);
for (String alias : cmd.aliases()) {
final String helpMessage = "/"+alias+" "+arguments+"\n\n"+help;
final String key = alias.replaceAll("/", "");
String previous = helpMessages.put(key, helpMessage);
if (previous != null && !previous.replaceAll("^/[^ ]+ ", "").equals(helpMessage.replaceAll("^/[^ ]+ ", ""))) {
helpMessages.put(key, previous+"\n\n"+helpMessage);
}
}
}
// Add the command to the registered command list for return
@ -233,6 +260,15 @@ public abstract class CommandsManager<T> {
return descs;
}
/**
* Get a map from command name to help message. This is only for root commands.
*
* @return
*/
public Map<String, String> getHelpMessages() {
return helpMessages;
}
/**
* Get the usage string for a command.
*
@ -250,17 +286,7 @@ public abstract class CommandsManager<T> {
command.append(args[i]);
command.append(' ');
}
if (cmd.flags().length() > 0) {
String flags = cmd.flags().replaceAll(".:", "");
if (flags.length() > 0) {
command.append("[-");
for (int i = 0; i < flags.length(); ++i) {
command.append(flags.charAt(i));
}
command.append("] ");
}
}
command.append(cmd.usage());
command.append(getArguments(cmd));
final String help = cmd.help();
if (!help.isEmpty()) {
@ -271,6 +297,26 @@ public abstract class CommandsManager<T> {
return command.toString();
}
protected CharSequence getArguments(Command cmd) {
final String flags = cmd.flags();
final StringBuilder command2 = new StringBuilder();
if (flags.length() > 0) {
String flagString = flags.replaceAll(".:", "");
if (flagString.length() > 0) {
command2.append("[-");
for (int i = 0; i < flagString.length(); ++i) {
command2.append(flagString.charAt(i));
}
command2.append("] ");
}
}
command2.append(cmd.usage());
return command2;
}
/**
* Get the usage string for a nested command.
*