add music command

gameserver/src/main/java/brainwine/gameserver/command/admin/MusicCommand.java

@@ -0,0 +1,105 @@
+package brainwine.gameserver.command.admin;
+
+import static brainwine.gameserver.player.NotificationType.SYSTEM;
+
+import java.util.List;
+import java.util.Map;
+
+import org.apache.commons.lang3.math.NumberUtils;
+
+import brainwine.gameserver.GameConfiguration;
+import brainwine.gameserver.command.Command;
+import brainwine.gameserver.command.CommandExecutor;
+import brainwine.gameserver.command.CommandInfo;
+import brainwine.gameserver.player.Player;
+import brainwine.gameserver.server.messages.EffectMessage;
+import brainwine.gameserver.util.MapHelper;
+
+// To add more music add new emitters in config-particles.yml. The emitter name should be in form "music musicname"
+
+@CommandInfo(name = "music", description = "Plays ambient sound in the world.", aliases = { "mus" })
+public class MusicCommand extends Command {
+
+    @Override
+    public void execute(CommandExecutor executor, String[] args) {
+        if(args.length < 1) {
+            executor.notify(String.format("Usage: %s", getUsage(executor)), SYSTEM);
+            return;
+        }
+
+        String musicName = args[0];
+
+        Map<String, String> emitters = MapHelper.getMap(GameConfiguration.getBaseConfig(), "emitters");
+
+        if (emitters == null) {
+            executor.notify("The music command is not configured for this server.", SYSTEM);
+            return;
+        }
+
+        if ("list".equals(musicName)) {
+            List<String> allMusic = emitters.keySet().stream()
+              .filter(k -> k.startsWith("music "))
+              .map(k -> {
+                int start = k.indexOf(" ");
+                if (start != 1) {
+                    return k.substring(start + 1);
+                } else {
+                    return k;
+                }
+              }).toList();
+
+            int pageSize = 8;
+            int pageCount = (int)Math.ceil(allMusic.size() / (double)pageSize);
+            int page = 1;
+
+            if (args.length > 1) {
+                page = Math.max(1, NumberUtils.toInt(args[1], page));
+            }
+
+            executor.notify(String.format("========== Music List (Page %s of %s) ==========", page, pageCount), SYSTEM);
+
+            int start = Math.max(0, (page - 1) * pageSize);
+            int stop = Math.min(allMusic.size(), page * pageSize);
+
+            for (int i = start; i < stop; i++) {
+                executor.notify(String.format("- %s", allMusic.get(i)), SYSTEM);
+            }
+
+            return;
+        }
+
+        if (!(executor instanceof Player)) {
+            executor.notify("Cannot play music from the server command line yet.", SYSTEM);
+            return;
+        }
+
+        String effectName = String.format("music %s", musicName);
+
+        if (emitters.containsKey(effectName)) {
+            Player player = (Player) executor;
+
+            // TODO: sound moves with players
+            if (player.getZone() != null) for (Player other : player.getZone().getPlayers()) {
+                EffectMessage message = new EffectMessage(other.getX(), other.getY(), effectName, 10.0f);
+                other.sendMessage(message);
+            }
+
+            return;
+        } else {
+            executor.notify(String.format("Music %s is not known to the server.", musicName), SYSTEM);
+            return;
+        }
+    }
+
+    @Override
+    public String getUsage(CommandExecutor executor) {
+        return "/music list [page] or /music <name>";
+    }
+
+    @Override
+    public boolean canExecute(CommandExecutor executor) {
+        // we need the zone information for the player
+        return executor.isAdmin();
+    }
+
+}