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Generic help command

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This commit is contained in:
KingRainbow44 2022-04-18 23:06:03 -04:00
parent f11138dedc
commit 93a6914261
2 changed files with 71 additions and 4 deletions
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17
src/main/java/emu/grasscutter/commands/CommandMap.java
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@ -63,6 +63,23 @@ public final class CommandMap {
return this;
}
/**
* Returns a list of all registered commands.
* @return All command handlers as a list.
*/
public List<CommandHandler> getHandlers() {
return new LinkedList<>(this.commands.values());
}
/**
* Returns a handler by label/alias.
* @param label The command label.
* @return The command handler.
*/
public CommandHandler getHandler(String label) {
return this.commands.get(label);
}
/**
* Invoke a command handler with the given arguments.
* @param player The player invoking the command or null for the server console.

58
src/main/java/emu/grasscutter/commands/ServerCommands.java
View File

@ -6,6 +6,7 @@ import emu.grasscutter.game.Account;
import emu.grasscutter.game.GenshinPlayer;
import java.util.List;
import java.util.stream.Collectors;
/**
* A container for server-related commands.
@ -57,7 +58,7 @@ public final class ServerCommands {
@Override
public void execute(GenshinPlayer player, List<String> args) {
if(args.size() < 2) {
CommandHandler.sendMessage(null, "Usage: sendmessage <player> <message>"); return;
CommandHandler.sendMessage(player, "Usage: sendmessage <player> <message>"); return;
}
try {
@ -66,13 +67,13 @@ public final class ServerCommands {
GenshinPlayer targetPlayer = Grasscutter.getGameServer().getPlayerByUid(target);
if(targetPlayer == null) {
CommandHandler.sendMessage(null, "Player not found."); return;
CommandHandler.sendMessage(player, "Player not found."); return;
}
targetPlayer.sendMessage(player, message);
CommandHandler.sendMessage(null, "Message sent.");
CommandHandler.sendMessage(player, "Message sent.");
} catch (NumberFormatException ignored) {
CommandHandler.sendMessage(null, "Invalid player ID.");
CommandHandler.sendMessage(player, "Invalid player ID.");
}
}
}
@ -118,4 +119,53 @@ public final class ServerCommands {
}
}
}
@Command(label = "help",
usage = "Usage: help [command]")
public static class HelpCommand implements CommandHandler {
@Override
public void execute(List<String> args) {
List<CommandHandler> handlers = CommandMap.getInstance().getHandlers();
List<Command> annotations = handlers.stream()
.map(handler -> handler.getClass().getAnnotation(Command.class))
.collect(Collectors.toList());
if(args.size() < 1) {
StringBuilder builder = new StringBuilder("Available commands:\n");
annotations.forEach(annotation -> builder.append(annotation.usage()).append("\n"));
CommandHandler.sendMessage(null, builder.toString());
} else {
String command = args.get(0);
CommandHandler handler = CommandMap.getInstance().getHandler(command);
if(handler == null) {
CommandHandler.sendMessage(null, "Command not found."); return;
}
Command annotation = handler.getClass().getAnnotation(Command.class);
CommandHandler.sendMessage(null, annotation.usage());
}
}
@Override
public void execute(GenshinPlayer player, List<String> args) {
List<CommandHandler> handlers = CommandMap.getInstance().getHandlers();
List<Command> annotations = handlers.stream()
.map(handler -> handler.getClass().getAnnotation(Command.class))
.collect(Collectors.toList());
if(args.size() < 1) {
annotations.forEach(annotation -> player.dropMessage(annotation.usage()));
} else {
String command = args.get(0);
CommandHandler handler = CommandMap.getInstance().getHandler(command);
if(handler == null) {
CommandHandler.sendMessage(player, "Command not found."); return;
}
Command annotation = handler.getClass().getAnnotation(Command.class);
CommandHandler.sendMessage(player, annotation.usage());
}
}
}
}