add adapter pattern example

Author: QianMo

Assets/Behavioral Patterns/State Pattern/Exmaple1/StateExample1.cs

@@ -249,6 +249,12 @@ public Account(string owner)
  this._state = new SilverState(0.0, this);
  }
 
+ //to fix the private field "_owner' is assigned but its value is never used warning
+ public string GetOwner()
+ {
+ return _owner;
+ }
+
  // Properties
  public double Balance
  {

Assets/Behavioral Patterns/State Pattern/Exmaple3/NoCash.cs

@@ -10,41 +10,37 @@ public class NoCash : ATMState
 
  ATMMachine atmMachine;
 
-
  public NoCash(ATMMachine newATMMachine)
-{
-
- atmMachine = newATMMachine;
-
-}
-
-public void insertCard()
-{
-
- Debug.Log("We don't have any money");
- Debug.Log("Your card is ejected");
-
-}
-
-public void ejectCard()
-{
-
- Debug.Log("We don't have any money");
- Debug.Log("There is no card to eject");
-
-}
-
-public void requestCash(int cashToWithdraw)
-{
-
- Debug.Log("We don't have any money");
-
-}
-
-public void insertPin(int pinEntered)
-{
-
- Debug.Log("We don't have any money");
-
-}
+ {
+ atmMachine = newATMMachine;
+ }
+
+ public void insertCard()
+ {
+ Debug.Log("We don't have any money");
+ Debug.Log("Your card is ejected");
+ }
+
+ public void ejectCard()
+ {
+ Debug.Log("We don't have any money");
+ Debug.Log("There is no card to eject");
+
+ }
+
+ public void requestCash(int cashToWithdraw)
+ {
+ Debug.Log("We don't have any money");
+ }
+
+ public void insertPin(int pinEntered)
+ {
+ Debug.Log("We don't have any money");
+ }
+
+ //to fix the private field `NoCash.atmMachine' is assigned but its value is never used warning
+ ATMMachine GetATMMachine()
+ {
+ return atmMachine;
+ }
 }

Assets/Structural Patterns/Adapter Pattern/Exmaple1.meta

@@ -0,0 +1,142 @@
+//-------------------------------------------------------------------------------------
+//	AdapterPatternExample1.cs
+//-------------------------------------------------------------------------------------
+
+using UnityEngine;
+using System.Collections;
+
+
+//Convert the interface of a class into another interface clients expect. Adapter lets classes work together that couldn't otherwise because of incompatible interfaces.
+//This real-world code demonstrates the use of a legacy chemical databank. Chemical compound objects access the databank through an Adapter interface.
+
+namespace AdapterPatternExample1
+{
+ public class AdapterPatternExample1 : MonoBehaviour
+ {
+ void Start()
+ {
+ // Non-adapted chemical compound
+ Compound unknown = new Compound("Unknown");
+ unknown.Display();
+
+ // Adapted chemical compounds
+ Compound water = new RichCompound("Water");
+ water.Display();
+
+ Compound benzene = new RichCompound("Benzene");
+ benzene.Display();
+
+ Compound ethanol = new RichCompound("Ethanol");
+ ethanol.Display();
+ }
+ }
+
+ /// <summary>
+ /// The 'Target' class
+ /// </summary>
+ class Compound
+ {
+ protected string _chemical;
+ protected float _boilingPoint;
+ protected float _meltingPoint;
+ protected double _molecularWeight;
+ protected string _molecularFormula;
+
+ // Constructor
+ public Compound(string chemical)
+ {
+ this._chemical = chemical;
+ }
+
+ public virtual void Display()
+ {
+ Debug.Log("\nCompound: " + _chemical + "------");
+ }
+ }
+
+ /// <summary>
+ /// The 'Adapter' class
+ /// </summary>
+ class RichCompound : Compound
+ {
+ private ChemicalDatabank _bank;
+
+ // Constructor
+ public RichCompound(string name)
+ : base(name)
+ {
+ }
+
+ public override void Display()
+ {
+ // The Adaptee
+ _bank = new ChemicalDatabank();
+
+ _boilingPoint = _bank.GetCriticalPoint(_chemical, "B");
+ _meltingPoint = _bank.GetCriticalPoint(_chemical, "M");
+ _molecularWeight = _bank.GetMolecularWeight(_chemical);
+ _molecularFormula = _bank.GetMolecularStructure(_chemical);
+
+ base.Display();
+ Debug.Log(" Formula: " + _molecularFormula);
+ Debug.Log(" Weight : " + _molecularWeight);
+ Debug.Log(" Melting Pt: " + _meltingPoint);
+ Debug.Log(" Boiling Pt: " + _boilingPoint);
+ }
+ }
+
+ /// <summary>
+ /// The 'Adaptee' class
+ /// </summary>
+ class ChemicalDatabank
+ {
+ // The databank 'legacy API'
+ public float GetCriticalPoint(string compound, string point)
+ {
+ // Melting Point
+ if (point == "M")
+ {
+ switch (compound.ToLower())
+ {
+ case "water": return 0.0f;
+ case "benzene": return 5.5f;
+ case "ethanol": return -114.1f;
+ default: return 0f;
+ }
+ }
+ // Boiling Point
+ else
+ {
+ switch (compound.ToLower())
+ {
+ case "water": return 100.0f;
+ case "benzene": return 80.1f;
+ case "ethanol": return 78.3f;
+ default: return 0f;
+ }
+ }
+ }
+
+ public string GetMolecularStructure(string compound)
+ {
+ switch (compound.ToLower())
+ {
+ case "water": return "H20";
+ case "benzene": return "C6H6";
+ case "ethanol": return "C2H5OH";
+ default: return "";
+ }
+ }
+
+ public double GetMolecularWeight(string compound)
+ {
+ switch (compound.ToLower())
+ {
+ case "water": return 18.015;
+ case "benzene": return 78.1134;
+ case "ethanol": return 46.0688;
+ default: return 0d;
+ }
+ }
+ }
+}