(61d00a474) v0.9.7.1

2020-03-04 13:04:10 +01:00
parent 3c50efa5c9
commit 3c09ebe02f
5086 changed files with 786063 additions and 295871 deletions
@@ -0,0 +1,69 @@
+// Copyright (c) 2017 Kastellanos Nikolaos
+
+using System;
+using System.Collections;
+using System.Collections.Generic;
+
+namespace FarseerPhysics.Dynamics.Contacts
+{
+    /// <summary>
+    /// Head of a circular doubly linked list.
+    /// </summary>
+    public class ContactListHead : Contact , IEnumerable<Contact>
+    {
+        internal ContactListHead(): base(null, 0, null, 0)
+        {
+            this.Prev = this;
+            this.Next = this;
+        }
+        
+        IEnumerator<Contact> IEnumerable<Contact>.GetEnumerator()
+        {
+            return new ContactEnumerator(this);
+        }
+
+        IEnumerator IEnumerable.GetEnumerator()
+        {
+            return new ContactEnumerator(this);
+        }
+
+        
+        #region Nested type: ContactEnumerator
+
+        private struct ContactEnumerator : IEnumerator<Contact>
+        {
+            private ContactListHead _head;
+            private Contact _current;
+
+            public Contact Current { get { return _current; } }
+            object IEnumerator.Current { get { return _current; } }
+
+
+            public ContactEnumerator(ContactListHead contact)
+            {
+                _head = contact;
+                 _current = _head;
+            }
+
+            public void Reset()
+            {
+                _current = _head;
+            }
+
+            public bool MoveNext()
+            {
+                _current = _current.Next;
+                return (_current != _head);
+            }
+
+            public void Dispose()
+            {
+                _head = null;
+                _current = null;
+            }
+        }
+
+        #endregion
+
+    }
+}