From f4719cfe1b7b7938f5319fb37d219c93bb857984 Mon Sep 17 00:00:00 2001
From: UbitUmarov
Date: Sun, 23 Aug 2015 18:10:51 +0100
Subject:  fix db region search by a position, for varregions ( ignoring other
 that  mysql for now )

---
 OpenSim/Data/MySQL/MySQLRegionData.cs | 40 +++++++++++++++++++++++++++++++++++
 1 file changed, 40 insertions(+)

(limited to 'OpenSim/Data/MySQL/MySQLRegionData.cs')

diff --git a/OpenSim/Data/MySQL/MySQLRegionData.cs b/OpenSim/Data/MySQL/MySQLRegionData.cs
index 2ad7590..fab0318 100644
--- a/OpenSim/Data/MySQL/MySQLRegionData.cs
+++ b/OpenSim/Data/MySQL/MySQLRegionData.cs
@@ -82,6 +82,7 @@ namespace OpenSim.Data.MySQL
 
         public RegionData Get(int posX, int posY, UUID scopeID)
         {
+/* fixed size regions
             string command = "select * from `"+m_Realm+"` where locX = ?posX and locY = ?posY";
             if (scopeID != UUID.Zero)
                 command += " and ScopeID = ?scopeID";
@@ -98,6 +99,45 @@ namespace OpenSim.Data.MySQL
 
                 return ret[0];
             }
+*/
+            // extend database search for maximum region size area
+            string command = "select * from `" + m_Realm + "` where locX between ?startX and ?endX and locY between ?startY and ?endY";
+            if (scopeID != UUID.Zero)
+                command += " and ScopeID = ?scopeID";
+
+            int startX = posX - (int)Constants.MaximumRegionSize;
+            int startY = posY - (int)Constants.MaximumRegionSize;
+            int endX = posX;
+            int endY = posY;
+
+            List<RegionData> ret;
+            using (MySqlCommand cmd = new MySqlCommand(command))
+            {
+                cmd.Parameters.AddWithValue("?startX", startX.ToString());
+                cmd.Parameters.AddWithValue("?startY", startY.ToString());
+                cmd.Parameters.AddWithValue("?endX", endX.ToString());
+                cmd.Parameters.AddWithValue("?endY", endY.ToString());
+                cmd.Parameters.AddWithValue("?scopeID", scopeID.ToString());
+
+                ret = RunCommand(cmd);
+            }
+
+            if (ret.Count == 0)
+                return null;
+
+            // find the first that contains pos
+            RegionData rg = null;
+            foreach (RegionData r in ret)
+            {
+                if (posX >= r.posX && posX < r.posX + r.sizeX
+                    && posY >= r.posY && posY < r.posY + r.sizeY)
+                {
+                    rg = r;
+                    break;
+                }
+            }
+
+            return rg;
         }
 
         public RegionData Get(UUID regionID, UUID scopeID)
-- 
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