SpigotCore_Main/src/de/steamwar/command/Argument.java

@@ -29,6 +29,10 @@ import java.util.function.Predicate;
 
 public class Argument<T> {
 
+    public static final Argument<Integer> INT = new Argument<>(ArgumentType.INT, integer -> true);
+    public static final Argument<Long> LONG = new Argument<>(ArgumentType.LONG, l -> true);
+    public static final Argument<Float> FLOAT = new Argument<>(ArgumentType.FLOAT, integer -> true);
+    public static final Argument<Double> DOUBLE = new Argument<>(ArgumentType.DOUBLE, integer -> true);
     public static final Argument<String> PLAYER = new Argument<>(ArgumentType.STRING, string -> Bukkit.getPlayer(string) == null, Bukkit::getPlayer);
 
     private ArgumentType<T> argumentType;