IRegionData.cs

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 * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
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using System;
using System.Collections.Generic;
using OpenMetaverse;
using OpenSim.Framework;

namespace OpenSim.Data
{
    public class RegionData
    {
        public UUID RegionID;
        public UUID ScopeID;
        public string RegionName;

        public int posX;

        public int posY;

        public int sizeX;
        public int sizeY;

        public int coordX { get { return (int)Util.WorldToRegionLoc((uint)posX); } }

        public int coordY { get { return (int)Util.WorldToRegionLoc((uint)posY); } }

        public Dictionary<string, object> Data;
    }

    public interface IRegionData 
    {
        RegionData Get(UUID regionID, UUID ScopeID);
        List<RegionData> Get(string regionName, UUID ScopeID);
        RegionData Get(int x, int y, UUID ScopeID);
        List<RegionData> Get(int xStart, int yStart, int xEnd, int yEnd, UUID ScopeID);

        bool Store(RegionData data);

        bool SetDataItem(UUID principalID, string item, string value);

        bool Delete(UUID regionID);

        List<RegionData> GetDefaultRegions(UUID scopeID);
        List<RegionData> GetDefaultHypergridRegions(UUID scopeID);
        List<RegionData> GetFallbackRegions(UUID scopeID, int x, int y);
        List<RegionData> GetHyperlinks(UUID scopeID);
    }

    public class RegionDataDistanceCompare : IComparer<RegionData>
    {
        private Vector2 m_origin;

        public RegionDataDistanceCompare(int x, int y)
        {
            m_origin = new Vector2(x, y);
        }

        public int Compare(RegionData regionA, RegionData regionB)
        {
            Vector2 vectorA = new Vector2(regionA.posX, regionA.posY);
            Vector2 vectorB = new Vector2(regionB.posX, regionB.posY);
            return Math.Sign(VectorDistance(m_origin, vectorA) - VectorDistance(m_origin, vectorB));
        }

        private float VectorDistance(Vector2 x, Vector2 y)
        {
            return (x - y).Length();
        }
    }
}