feat: implemented deserializer for IntVector2 and created a test for it

src/main/java/uulm/teamname/marvelous/gamelibrary/IntVector2.java

@@ -1,9 +1,13 @@
 package uulm.teamname.marvelous.gamelibrary;
 
+import com.fasterxml.jackson.databind.annotation.JsonDeserialize;
+import uulm.teamname.marvelous.gamelibrary.json.ingame.IntVector2Deserializer;
+
 import java.io.Serializable;
 import java.util.Objects;
 
 /** Represents a 2d vector of integers. */
+@JsonDeserialize(using = IntVector2Deserializer.class)
 public class IntVector2 implements Serializable {
     private int x;
     private int y;

src/main/java/uulm/teamname/marvelous/gamelibrary/json/ingame/IntVector2Deserializer.java

@@ -0,0 +1,24 @@
+package uulm.teamname.marvelous.gamelibrary.json.ingame;
+
+import com.fasterxml.jackson.core.JsonParser;
+import com.fasterxml.jackson.core.JsonProcessingException;
+import com.fasterxml.jackson.core.ObjectCodec;
+import com.fasterxml.jackson.databind.DeserializationContext;
+import com.fasterxml.jackson.databind.JsonDeserializer;
+import com.fasterxml.jackson.databind.JsonNode;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import uulm.teamname.marvelous.gamelibrary.IntVector2;
+
+import java.io.IOException;
+
+public class IntVector2Deserializer extends JsonDeserializer<IntVector2> {
+
+    ObjectMapper mapper = new ObjectMapper();
+
+    @Override
+    public IntVector2 deserialize(JsonParser p, DeserializationContext ctxt) throws IOException, JsonProcessingException {
+        var values = mapper.readValue(p, Integer[].class);
+        IntVector2 result = new IntVector2(values[0], values[1]);
+        return result;
+    }
+}