Fix one weird behaviour

src/de/steamwar/command/PreviousArguments.java

@@ -19,6 +19,10 @@
 
 package de.steamwar.command;
 
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Optional;
+
 public class PreviousArguments {
 
     public final String[] userArgs;
@@ -36,4 +40,23 @@ public class PreviousArguments {
     public <T> T getMappedArg(int index) {
         return (T) mappedArgs[mappedArgs.length - index - 1];
     }
+
+    public <T> Optional<T> getFirst(Class<T> clazz) {
+        for (Object o : mappedArgs) {
+            if (clazz.isInstance(o)) {
+                return Optional.of((T) o);
+            }
+        }
+        return Optional.empty();
+    }
+
+    public <T> List<T> getAll(Class<T> clazz) {
+        List<T> list = new ArrayList<>();
+        for (Object o : mappedArgs) {
+            if (clazz.isInstance(o)) {
+                list.add((T) o);
+            }
+        }
+        return list;
+    }
 }

src/de/steamwar/command/SWCommandUtils.java

@@ -23,7 +23,6 @@ import lombok.Getter;
 import lombok.experimental.UtilityClass;
 
 import java.lang.annotation.Annotation;
-import java.lang.reflect.Array;
 import java.lang.reflect.Method;
 import java.lang.reflect.Parameter;
 import java.util.*;
@@ -42,12 +41,12 @@ public class SWCommandUtils {
 
     private SWTypeMapperCreator swTypeMapperCreator = (mapper, tabCompleter) -> new AbstractTypeMapper<Object, Object>() {
         @Override
-        public Object map(Object sender, String[] previousArguments, String s) {
+        public Object map(Object sender, PreviousArguments previousArguments, String s) {
             return mapper.apply(s);
         }
 
         @Override
-        public Collection<String> tabCompletes(Object sender, String[] previousArguments, String s) {
+        public Collection<String> tabCompletes(Object sender, PreviousArguments previousArguments, String s) {
             return ((BiFunction<Object, Object, Collection<String>>) tabCompleter).apply(sender, s);
         }
     };