Initial implementation of /particle command using Spigot API

GlowstoneMC/Glowstone#13

src/main/java/org/bukkit/command/SimpleCommandMap.java

@@ -76,6 +76,7 @@ public void setFallbackCommands() {
         register("bukkit", new SetWorldSpawnCommand());
         register("bukkit", new SetIdleTimeoutCommand());
         register("bukkit", new AchievementCommand());
+        register("bukkit", new ParticleCommand());
     }
 
     /**

src/main/java/org/bukkit/command/defaults/ParticleCommand.java

@@ -0,0 +1,64 @@
+package org.bukkit.command.defaults;
+
+import org.bukkit.ChatColor;
+import org.bukkit.Effect;
+import org.bukkit.Location;
+import org.bukkit.World;
+import org.bukkit.command.CommandSender;
+import org.bukkit.entity.Player;
+
+public class ParticleCommand extends VanillaCommand {
+    public ParticleCommand() {
+        super("particle");
+        this.description = "Creates particle effects.";
+        this.usageMessage = "/particle <name> <x> <y> <z> <xd> <yd> <zd> <speed> [count] [mode]";
+        this.setPermission("bukkit.command.particle");
+    }
+
+    @Override
+    public boolean execute(CommandSender sender, String currentAlias, String[] args) {
+        if (!testPermission(sender)) {
+            return true;
+        }
+
+        if (args.length < 8) {
+            sender.sendMessage(ChatColor.RED + "Usage: " + usageMessage);
+            return false;
+        }
+
+        if (!(sender instanceof Player)) {
+            sender.sendMessage("You can only perform this command as a player");
+            return true;
+        }
+
+        final Player player = (Player) sender;
+
+        final Location location = player.getLocation();
+        final World world = location.getWorld();
+
+        final String name = args[0];
+        final float x = (float) getRelativeDouble(location.getX(), sender, args[1]);
+        final float y = (float) getRelativeDouble(location.getY(), sender, args[2]);
+        final float z = (float) getRelativeDouble(location.getZ(), sender, args[3]);
+        final float xd = (float) getDouble(sender, args[4]);
+        final float yd = (float) getDouble(sender, args[5]);
+        final float zd = (float) getDouble(sender, args[6]);
+        final float speed = (float) getDouble(sender, args[7]);
+        final int count = args.length > 8 ? getInteger(sender, args[8], 1) : 1;
+        final boolean force = args.length > 9 ? args[9].equals("force") : false;
+
+        Effect effect = Effect.getByName(name);
+        if (effect == null || effect.getType() != Effect.Type.PARTICLE) {
+            sender.sendMessage("Unknown particle effect: " + name);
+            return true;
+        }
+
+        int id = effect.getId();
+        int data = 0; // TODO
+        int radius = force ? 48 : 16;
+
+        world.spigot().playEffect(new Location(world, x, y, z), effect, id, data, xd, yd, zd, speed, count, radius);
+
+        return true;
+    }
+}