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add Interpreter and Iterator Pattern
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‎Assets/Interpreter Pattern.meta‎

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‎Assets/Interpreter Pattern/Structure.meta‎

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‎Assets/Interpreter Pattern/Structure/InterpreterStructrue.cs‎

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//-------------------------------------------------------------------------------------
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// InterpreterStructrue.cs
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//-------------------------------------------------------------------------------------
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using UnityEngine;
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using System.Collections;
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public class InterpreterStructrue : MonoBehaviour
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{
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void Start ( )
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{
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Context context = new Context();
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// Usually a tree
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ArrayList list = new ArrayList();
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// Populate 'abstract syntax tree'
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list.Add(new TerminalExpression());
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list.Add(new NonterminalExpression());
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list.Add(new TerminalExpression());
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list.Add(new TerminalExpression());
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// Interpret
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foreach (AbstractExpression exp in list)
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{
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exp.Interpret(context);
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}
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}
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}
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/// <summary>
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/// The 'Context' class
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/// </summary>
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class Context
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{
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}
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/// <summary>
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/// The 'AbstractExpression' abstract class
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/// </summary>
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abstract class AbstractExpression
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{
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public abstract void Interpret(Context context);
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}
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/// <summary>
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/// The 'TerminalExpression' class
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/// </summary>
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class TerminalExpression : AbstractExpression
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{
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public override void Interpret(Context context)
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{
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Debug.Log("Called Terminal.Interpret()");
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}
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}
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/// <summary>
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/// The 'NonterminalExpression' class
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/// </summary>
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class NonterminalExpression : AbstractExpression
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{
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public override void Interpret(Context context)
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{
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Debug.Log("Called Nonterminal.Interpret()");
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}
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}

‎Assets/Interpreter Pattern/Structure/InterpreterStructrue.cs.meta‎

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‎Assets/Interpreter Pattern/Structure/TestInterpreterStructrue.unity‎

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‎Assets/Interpreter Pattern/Structure/TestInterpreterStructrue.unity.meta‎

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‎Assets/Iterator Pattern.meta‎

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‎Assets/Iterator Pattern/Structure.meta‎

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‎Assets/Iterator Pattern/Structure/IteratorStructure.cs‎

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//-------------------------------------------------------------------------------------
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// IteratorStructure.cs
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//-------------------------------------------------------------------------------------
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using UnityEngine;
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using System.Collections;
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public class IteratorStructure : MonoBehaviour
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{
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void Start ( )
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{
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ConcreteAggregate a = new ConcreteAggregate();
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a[0] = "Item A";
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a[1] = "Item B";
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a[2] = "Item C";
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a[3] = "Item D";
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// Create Iterator and provide aggregate
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Iterator i = a.CreateIterator();
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Debug.Log("Iterating over collection:");
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object item = i.First();
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while (item != null)
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{
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Debug.Log(item);
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item = i.Next();
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}
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}
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}
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/// <summary>
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/// The 'Aggregate' abstract class
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/// </summary>
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abstract class Aggregate
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{
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public abstract Iterator CreateIterator();
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}
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/// <summary>
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/// The 'ConcreteAggregate' class
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/// </summary>
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class ConcreteAggregate : Aggregate
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{
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private ArrayList _items = new ArrayList();
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public override Iterator CreateIterator()
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{
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return new ConcreteIterator(this);
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}
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// Gets item count
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public int Count
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{
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get { return _items.Count; }
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}
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// Indexer
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public object this[int index]
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{
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get { return _items[index]; }
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set { _items.Insert(index, value); }
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}
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}
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/// <summary>
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/// The 'Iterator' abstract class
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/// </summary>
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abstract class Iterator
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{
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public abstract object First();
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public abstract object Next();
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public abstract bool IsDone();
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public abstract object CurrentItem();
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}
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/// <summary>
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/// The 'ConcreteIterator' class
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/// </summary>
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class ConcreteIterator : Iterator
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{
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private ConcreteAggregate _aggregate;
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private int _current = 0;
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// Constructor
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public ConcreteIterator(ConcreteAggregate aggregate)
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{
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this._aggregate = aggregate;
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}
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// Gets first iteration item
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public override object First()
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{
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return _aggregate[0];
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}
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// Gets next iteration item
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public override object Next()
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{
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object ret = null;
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if (_current < _aggregate.Count - 1)
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{
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ret = _aggregate[++_current];
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}
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return ret;
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}
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// Gets current iteration item
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public override object CurrentItem()
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{
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return _aggregate[_current];
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}
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// Gets whether iterations are complete
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public override bool IsDone()
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{
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return _current >= _aggregate.Count;
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}
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}

‎Assets/Iterator Pattern/Structure/IteratorStructure.cs.meta‎

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