fix: make vector scaling round

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

@@ -111,7 +111,7 @@ public class IntVector2 implements Serializable {
     }
 
     public IntVector2 scale(float x, float y) {
-        return new IntVector2((int)(this.x * x), (int)(this.y * y));
+        return new IntVector2(Math.round(this.x * x), Math.round(this.y * y));
     }
 
     public IntVector2 scale(float scalar) {