Border.cs

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 * Copyright (c) Contributors, http://opensimulator.org/
 * See CONTRIBUTORS.TXT for a full list of copyright holders.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
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 *       notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above copyright
 *       notice, this list of conditions and the following disclaimer in the
 *       documentation and/or other materials provided with the distribution.
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 *       names of its contributors may be used to endorse or promote products
 *       derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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 */

using System;
using System.Collections.Generic;
using System.Text;
using OpenMetaverse;

namespace OpenSim.Region.Framework.Scenes
{
    public class Border
    {       
        public Vector3 BorderLine = Vector3.Zero;
        
        public Cardinals CrossDirection = Cardinals.N;
        public uint TriggerRegionX = 0;
        public uint TriggerRegionY = 0;

        public Border()
        {
        }

        public Border(float lineStart, float lineEnd, float triggerCoordinate, uint triggerRegionX, 
            uint triggerRegionY, Cardinals direction)
        {
            BorderLine = new Vector3(lineStart,lineEnd,triggerCoordinate);
            CrossDirection = direction;
            TriggerRegionX = triggerRegionX;
            TriggerRegionY = triggerRegionY;
        }

        public bool TestCross(Vector3 position)
        {
            bool result = false;
            switch (CrossDirection)
            {
                case Cardinals.N:  // x+0, y+1
                    if (position.X >= BorderLine.X && position.X <= BorderLine.Y && position.Y > BorderLine.Z)
                    {
                        return true;
                    }
                    break;
                case Cardinals.NE: // x+1, y+1
                    break;
                case Cardinals.E:  // x+1, y+0
                    if (position.Y >= BorderLine.X && position.Y <= BorderLine.Y && position.X > BorderLine.Z)
                    {
                        return true;
                    }
                    break;
                case Cardinals.SE: // x+1, y-1
                    break;
                case Cardinals.S:  // x+0, y-1
                    if (position.X >= BorderLine.X && position.X <= BorderLine.Y && position.Y < BorderLine.Z)
                    {
                        return true;
                    }
                    break;
                case Cardinals.SW: // x-1, y-1
                    break;
                case Cardinals.W:  // x-1, y+0
                    if (position.Y >= BorderLine.X && position.Y <= BorderLine.Y && position.X < BorderLine.Z)
                    {
                        return true;
                    }
                    break; 
                case Cardinals.NW: // x-1, y+1
                    break;
            }

            return result;
        }

        public float Extent
        {
            get
            {
                switch (CrossDirection)
                {
                    case Cardinals.N:
                        break;
                    case Cardinals.S:
                        break;
                    case Cardinals.W:
                        break;
                    case Cardinals.E:
                        break;
                }
                return 0;
            }
        }
    }
}