v0.1

Subsurface/Source/Map/Entity.cs

@@ -0,0 +1,91 @@
+using System.Collections.Generic;
+using Lidgren.Network;
+using Microsoft.Xna.Framework;
+using Subsurface.Networking;
+
+namespace Subsurface
+{
+    class Entity
+    {
+        private static Dictionary<int, Entity> dictionary = new Dictionary<int, Entity>();
+
+        private int id;
+
+        protected AITarget aiTarget;
+        //protected float soundRange;
+        //protected float sightRange;
+        
+        public int ID
+        {
+            get { return id; }
+            set 
+            {
+                Entity thisEntity;
+                if (dictionary.TryGetValue(id, out thisEntity) && thisEntity == this)
+                {
+                    dictionary.Remove(id);
+                }
+                //if there's already an entity with the same ID, give it the old ID of this one
+                Entity existingEntity;
+                if (dictionary.TryGetValue(value, out existingEntity))
+                {
+                    System.Diagnostics.Debug.WriteLine(existingEntity+" had the same ID as "+this);
+                    dictionary.Remove(value);
+                    dictionary.Add(id, existingEntity);
+                    existingEntity.id = id;
+                }
+
+                id = value;                             
+                dictionary.Add(id, this);
+            }
+        }
+
+        public virtual Vector2 SimPosition
+        {
+            get { return Vector2.Zero; }
+        }
+
+        public Entity()
+        {
+            //give  an unique ID
+            bool IDfound;
+            id = 1;//Rand.Int(int.MaxValue);
+            do
+            {
+                id += 1;
+                IDfound = dictionary.ContainsKey(id);
+            } while (IDfound);
+
+            dictionary.Add(id, this);
+        }
+
+        public virtual void FillNetworkData(NetworkEventType type, NetOutgoingMessage message, object data) { }
+        public virtual void ReadNetworkData(NetworkEventType type, NetIncomingMessage message) { }
+
+        /// <summary>
+        /// Find an entity based on the ID
+        /// </summary>
+        public static Entity FindEntityByID(int ID)
+        {
+            Entity matchingEntity;
+            dictionary.TryGetValue(ID, out matchingEntity);
+
+            return matchingEntity;
+        }
+
+        public static void RemoveAll()
+        {
+            List<Entity> list = new List<Entity>(dictionary.Values);
+            foreach (Entity e in list)
+            {
+                e.Remove();
+            }
+            dictionary.Clear();
+        }
+
+        public virtual void Remove()
+        {
+            dictionary.Remove(ID);
+        }
+    }
+}