1 files changed, 148 insertions, 0 deletions

diff --git a/OpenSim/Region/Framework/Scenes/Border.cs b/OpenSim/Region/Framework/Scenes/Border.cs
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+++ b/OpenSim/Region/Framework/Scenes/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:
+ *     * Redistributions of source code must retain the above copyright
+ *       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.
+ *     * Neither the name of the OpenSimulator Project nor the
+ *       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
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+using System;
+using System.Collections.Generic;
+using System.Text;
+using OpenMetaverse;
+
+namespace OpenSim.Region.Framework.Scenes
+{
+    public class Border
+    {       
+        /// <summary>
+        /// Line perpendicular to the Direction Cardinal.  Z value is the 
+        /// </summary>
+        public Vector3 BorderLine = Vector3.Zero;
+        
+        /// <summary>
+        /// Direction cardinal of the border, think, 'which side of the region this is'.  EX South border: Cardinal.S
+        /// </summary>
+        public Cardinals CrossDirection = Cardinals.N;
+        public uint TriggerRegionX = 0;
+        public uint TriggerRegionY = 0;
+
+        public Border()
+        {
+        }
+
+        /// <summary>
+        /// Creates a Border.  The line is perpendicular to the direction cardinal. 
+        /// IE: if the direction cardinal is South, the line is West->East
+        /// </summary>
+        /// <param name="lineStart">The starting point for the line of the border.
+        /// The position of an object must be greater then this for this border to trigger.
+        /// Perpendicular to the direction cardinal</param>
+        /// <param name="lineEnd">The ending point for the line of the border.
+        /// The position of an object must be less then this for this border to trigger.
+        /// Perpendicular to the direction cardinal</param>
+        /// <param name="triggerCoordinate">The position that triggers border the border 
+        /// cross parallel to the direction cardinal.  On the North cardinal, this 
+        /// normally 256.  On the South cardinal, it's normally 0.  Any position past this 
+        /// point on the cartesian coordinate will trigger the border cross as long as it 
+        /// falls within the line start and the line end.</param>
+        /// <param name="triggerRegionX">When this border triggers, teleport to this regionX 
+        /// in the grid</param>
+        /// <param name="triggerRegionY">When this border triggers, teleport to this regionY 
+        /// in the grid</param>
+        /// <param name="direction">Cardinal for border direction.  Think, 'which side of the 
+        /// region is this'</param>
+        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;
+        }
+
+        /// <summary>
+        /// Tests to see if the given position would cross this border.
+        /// </summary>
+        /// <returns></returns>
+        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;
+            }
+        }
+    }
+}