feat: implemented aquiring characters of random order in CharacterConfig

src/main/java/uulm/teamname/marvelous/gamelibrary/config/CharacterConfig.java

@@ -4,8 +4,11 @@ import com.fasterxml.jackson.annotation.JsonIgnore;
 import jakarta.validation.Valid;
 import jakarta.validation.constraints.NotEmpty;
 import jakarta.validation.constraints.Size;
+import uulm.teamname.marvelous.gamelibrary.Tuple;
 
 import java.util.*;
+import java.util.concurrent.ThreadLocalRandom;
+import java.util.stream.Collectors;
 
 /**
  * POJO describing the CharacterConfig as defined by the standard document.
@@ -14,7 +17,7 @@ public class CharacterConfig {
 
     @NotEmpty
     @Valid
-    @Size(min = 12, message = "has less than 12 characters")
+    @Size(min = 24, message = "has less than 24 characters")
     public CharacterProperties[] characters;
 
     @JsonIgnore private Map<String, CharacterProperties> propertyMap;
@@ -38,6 +41,18 @@ public class CharacterConfig {
         return unmodifiablePropertyMap;
     }
 
+    @JsonIgnore
+    public Tuple<CharacterProperties[], CharacterProperties[]> getDisjointSetsOfPropertiesOfSize(int size) {
+        if ((size * 2) > characters.length) {
+            return null;
+        } else {
+            var characterList = Arrays.asList(this.characters);
+            Collections.shuffle(characterList);
+            return Tuple.of(characterList.subList(0, size).toArray(new CharacterProperties[0]),
+                    characterList.subList(size, 2 * size).toArray(new CharacterProperties[0]));
+        }
+    }
+
     @Override
     public boolean equals(Object o) {
         if (this == o) return true;