Added a getCenter() method to all Border classes.

src/main/java/de/craftinc/borderprotection/borders/Border.java

@@ -79,6 +79,8 @@ public abstract class Border
      */
     public abstract Location[] getSurroundingRect();
 
+    public abstract Location getCenter();
+
     public Boolean isActive()
     {
         return isActive;

src/main/java/de/craftinc/borderprotection/borders/CircBorder.java

@@ -129,4 +129,10 @@ public class CircBorder extends Border implements ConfigurationSerializable
 
         return new Location[]{ l1, l2 };
     }
+
+    @Override
+    public Location getCenter()
+    {
+        return center;
+    }
 }

src/main/java/de/craftinc/borderprotection/borders/RectBorder.java

@@ -21,6 +21,7 @@ import de.craftinc.borderprotection.Plugin;
 import de.craftinc.borderprotection.util.PlayerMovementUtil;
 import org.bukkit.ChatColor;
 import org.bukkit.Location;
+import org.bukkit.World;
 import org.bukkit.configuration.serialization.ConfigurationSerializable;
 
 import java.util.HashMap;
@@ -186,4 +187,15 @@ public class RectBorder extends Border implements ConfigurationSerializable
     {
         return new Location[]{ rectPoint1, rectPoint2 };
     }
+
+    @Override
+    public Location getCenter()
+    {
+        World w = rectPoint1.getWorld();
+        double x = Math.abs(rectPoint1.getX() - rectPoint2.getX()) / 2.0 + Math.min(rectPoint1.getX(), rectPoint2.getX());
+        double y = rectPoint1.getY();
+        double z = Math.abs(rectPoint1.getZ() - rectPoint2.getZ()) / 2.0 + Math.min(rectPoint1.getZ(), rectPoint2.getZ());
+
+        return new Location(w, x, y, z);
+    }
 }