new region lookup

src/engine/gameManager/BuildingManager.java

@@ -18,6 +18,7 @@ import engine.job.JobContainer;
 import engine.job.JobScheduler;
 import engine.jobs.UpgradeBuildingJob;
 import engine.math.Bounds;
+import engine.math.Vector2f;
 import engine.math.Vector3fImmutable;
 import engine.net.client.ClientConnection;
 import engine.net.client.msg.ErrorPopupMsg;
@@ -26,7 +27,9 @@ import engine.net.client.msg.PlaceAssetMsg;
 import engine.objects.*;
 import engine.server.MBServerStatics;
 import org.pmw.tinylog.Logger;
+import org.w3c.dom.css.Rect;
 
+import java.awt.*;
 import java.time.LocalDateTime;
 import java.time.ZoneId;
 import java.util.ArrayList;
@@ -945,4 +948,20 @@ public enum BuildingManager {
 
         building.isDeranking.compareAndSet(true, false);
     }
+    public static Building getBuildingAtLocation(Vector3fImmutable loc){
+        for(AbstractWorldObject awo : WorldGrid.getObjectsInRangePartial(loc,128,MBServerStatics.MASK_BUILDING)){
+            Building building = (Building)awo;
+            if(building == null)
+                continue;
+            float minX = building.loc.x - building.getBounds().getHalfExtents().x;
+            float maxX = building.loc.x + building.getBounds().getHalfExtents().x;
+            float minZ = building.loc.z - building.getBounds().getHalfExtents().y;
+            float maxZ = building.loc.z + building.getBounds().getHalfExtents().y;
+
+            if(loc.x > minX && loc.x < maxX && loc.z > minZ && loc.x < maxZ)
+                return building;
+
+        }
+        return null;
+    }
 }