From 6cb3833021a15e1f62ed198de8845b7332a2152b Mon Sep 17 00:00:00 2001
From: Brian McBee <heartwide@gmail.com>
Date: Fri, 3 Aug 2007 21:54:21 +0000
Subject: [PATCH] 
 OpenSim/Region/Physics/BasicPhysicsPlugin/BasicPhysicsPlugin.cs,
 OpenSim/Region/Environment/Scenes/ScenePresence.cs

Fix for array out-of-bounds error in basicphysics.
---
 .../Region/Environment/Scenes/ScenePresence.cs | 18 +++++++++---------
 .../BasicPhysicsPlugin/BasicPhysicsPlugin.cs   | 10 +++++-----
 2 files changed, 14 insertions(+), 14 deletions(-)

diff --git a/OpenSim/Region/Environment/Scenes/ScenePresence.cs b/OpenSim/Region/Environment/Scenes/ScenePresence.cs
index 7b97080eb0..6c1e835ba2 100644
--- a/OpenSim/Region/Environment/Scenes/ScenePresence.cs
+++ b/OpenSim/Region/Environment/Scenes/ScenePresence.cs
@@ -550,7 +550,7 @@ namespace OpenSim.Region.Environment.Scenes
             LLVector3 pos2 = this.Pos;
             LLVector3 vel = this.Velocity;
 
-            float timeStep = 0.2f;
+            float timeStep = 0.1f;
             pos2.X = pos2.X + (vel.X * timeStep);
             pos2.Y = pos2.Y + (vel.Y * timeStep);
             pos2.Z = pos2.Z + (vel.Z * timeStep);
@@ -576,25 +576,25 @@ namespace OpenSim.Region.Environment.Scenes
             uint neighbourx = this.m_regionInfo.RegionLocX;
             uint neighboury = this.m_regionInfo.RegionLocY;
 
-            if (pos.X < 3)
+            if (pos.X < 1)
             {
                 neighbourx -= 1;
-                newpos.X = 254;
+                newpos.X = 255.9F;
             }
-            if (pos.X > 252)
+            if (pos.X > 255)
             {
                 neighbourx += 1;
-                newpos.X = 1;
+                newpos.X = 0.1F;
             }
-            if (pos.Y < 3)
+            if (pos.Y < 1)
             {
                 neighboury -= 1;
-                newpos.Y = 254;
+                newpos.Y = 255.9F;
             }
-            if (pos.Y > 252)
+            if (pos.Y > 255)
             {
                 neighboury += 1;
-                newpos.Y = 1;
+                newpos.Y = 0.1F;
             }
 
             LLVector3 vel = this.m_velocity;
diff --git a/OpenSim/Region/Physics/BasicPhysicsPlugin/BasicPhysicsPlugin.cs b/OpenSim/Region/Physics/BasicPhysicsPlugin/BasicPhysicsPlugin.cs
index b722fdf2a4..6732d98a55 100644
--- a/OpenSim/Region/Physics/BasicPhysicsPlugin/BasicPhysicsPlugin.cs
+++ b/OpenSim/Region/Physics/BasicPhysicsPlugin/BasicPhysicsPlugin.cs
@@ -103,20 +103,20 @@ namespace OpenSim.Region.Physics.BasicPhysicsPlugin
                 actor.Position.Y = actor.Position.Y + (actor.Velocity.Y * timeStep);
                 if (actor.Position.Y < 0)
                 {
-                    actor.Position.Y = 0;
+                    actor.Position.Y = 0.1F;
                 }
-                else if (actor.Position.Y > 256)
+                else if (actor.Position.Y >= 256)
                 {
-                    actor.Position.Y = 256;
+                    actor.Position.Y = 255.9F;
                 }
 
                 if (actor.Position.X < 0)
                 {
-                    actor.Position.X = 0;
+                    actor.Position.X = 0.1F;
                 }
                 else if (actor.Position.X > 256)
                 {
-                    actor.Position.X = 256;
+                    actor.Position.X = 255.9F;
                 }
 
                 float height = _heightMap[(int)actor.Position.Y * 256 + (int)actor.Position.X] + 1.2f;