1 files changed, 185 insertions, 0 deletions

diff --git a/OpenSim/Region/Physics/BasicPhysicsPlugin/BasicPhysicsScene.cs b/OpenSim/Region/Physics/BasicPhysicsPlugin/BasicPhysicsScene.cs
new file mode 100644
index 0000000..66bd099
--- /dev/null
+++ b/OpenSim/Region/Physics/BasicPhysicsPlugin/BasicPhysicsScene.cs
@@ -0,0 +1,185 @@
+/*
+ * 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 Nini.Config;
+using OpenMetaverse;
+using OpenSim.Framework;
+using OpenSim.Region.Physics.Manager;
+
+namespace OpenSim.Region.Physics.BasicPhysicsPlugin
+{
+    public class BasicScene : PhysicsScene
+    {
+        private List<BasicActor> _actors = new List<BasicActor>();
+        private float[] _heightMap;
+
+        //protected internal string sceneIdentifier;
+
+        public BasicScene(string _sceneIdentifier)
+        {
+            //sceneIdentifier = _sceneIdentifier;
+        }
+
+        public override void Initialise(IMesher meshmerizer, IConfigSource config)
+        {
+        }
+
+        public override void Dispose()
+        {
+
+        }
+        public override PhysicsActor AddAvatar(string avName, PhysicsVector position, PhysicsVector size, bool isFlying)
+        {
+            BasicActor act = new BasicActor();
+            act.Position = position;
+            act.Flying = isFlying;
+            _actors.Add(act);
+            return act;
+        }
+
+        public override void RemovePrim(PhysicsActor prim)
+        {
+        }
+
+        public override void RemoveAvatar(PhysicsActor actor)
+        {
+            BasicActor act = (BasicActor) actor;
+            if (_actors.Contains(act))
+            {
+                _actors.Remove(act);
+            }
+        }
+
+/*
+        public override PhysicsActor AddPrim(PhysicsVector position, PhysicsVector size, Quaternion rotation)
+        {
+            return null;
+        }
+*/
+
+        public override PhysicsActor AddPrimShape(string primName, PrimitiveBaseShape pbs, PhysicsVector position,
+                                                  PhysicsVector size, Quaternion rotation)
+        {
+            return AddPrimShape(primName, pbs, position, size, rotation, false);
+        }
+
+        public override PhysicsActor AddPrimShape(string primName, PrimitiveBaseShape pbs, PhysicsVector position,
+                                                  PhysicsVector size, Quaternion rotation, bool isPhysical)
+        {
+            return null;
+        }
+
+        public override void AddPhysicsActorTaint(PhysicsActor prim)
+        {
+        }
+
+        public override float Simulate(float timeStep)
+        {
+            float fps = 0;
+            for (int i = 0; i < _actors.Count; ++i)
+            {
+                BasicActor actor = _actors[i];
+
+                actor.Position.X += actor.Velocity.X*timeStep;
+                actor.Position.Y += actor.Velocity.Y*timeStep;
+
+                if (actor.Position.Y < 0)
+                {
+                    actor.Position.Y = 0.1F;
+                }
+                else if (actor.Position.Y >= Constants.RegionSize)
+                {
+                    actor.Position.Y = ((int)Constants.RegionSize - 0.1f);
+                }
+
+                if (actor.Position.X < 0)
+                {
+                    actor.Position.X = 0.1F;
+                }
+                else if (actor.Position.X >= Constants.RegionSize)
+                {
+                    actor.Position.X = ((int)Constants.RegionSize - 0.1f);
+                }
+
+                float height = _heightMap[(int)actor.Position.Y * Constants.RegionSize + (int)actor.Position.X] + actor.Size.Z;
+                if (actor.Flying)
+                {
+                    if (actor.Position.Z + (actor.Velocity.Z*timeStep) <
+                        _heightMap[(int)actor.Position.Y * Constants.RegionSize + (int)actor.Position.X] + 2)
+                    {
+                        actor.Position.Z = height;
+                        actor.Velocity.Z = 0;
+                        actor.IsColliding = true;
+                    }
+                    else
+                    {
+                        actor.Position.Z += actor.Velocity.Z*timeStep;
+                        actor.IsColliding = false;
+                    }
+                }
+                else
+                {
+                    actor.Position.Z = height;
+                    actor.Velocity.Z = 0;
+                    actor.IsColliding = true;
+                }
+            }
+            return fps;
+        }
+
+        public override void GetResults()
+        {
+        }
+
+        public override bool IsThreaded
+        {
+            get { return (false); // for now we won't be multithreaded
+            }
+        }
+
+        public override void SetTerrain(float[] heightMap)
+        {
+            _heightMap = heightMap;
+        }
+
+        public override void DeleteTerrain()
+        {
+        }
+
+        public override void SetWaterLevel(float baseheight)
+        {
+        }
+
+        public override Dictionary<uint, float> GetTopColliders()
+        {
+            Dictionary<uint, float> returncolliders = new Dictionary<uint, float>();
+            return returncolliders;
+        }
+    }
+}