Link screenshot image to live url in README

.nvmrc

@@ -0,0 +1 @@
+v11.10.1

.travis.yml

@@ -1,8 +1,5 @@
 language: node_js
 
-node_js:
-  - '11'
-
 branches:
   only:
     - master

README.md

@@ -4,9 +4,9 @@
 
 Design Patterns - a game to get familiar with the design patterns implemented in JavaScript, test your knowledge or simply for fun.
 
-### :zap: [PLAY HERE](http://design-patterns-javascript.surge.sh/)
+### :zap: [PLAY HERE](https://design-patterns-javascript.surge.sh/)
 
-<img src="https://raw.githubusercontent.com/zoltantothcom/Design-Patterns-JavaScript/master/static/screenshot.png?sanitize=true&raw=true" alt="Design Patterns - game results screenshot" />
+[<img src="https://raw.githubusercontent.com/zoltantothcom/Design-Patterns-JavaScript/master/static/screenshot.png?sanitize=true&raw=true" alt="Design Patterns - game results screenshot" />](https://design-patterns-javascript.surge.sh/)
 
 - [About](#about)
 - [How To Run Locally](#how-to-run-locally)

src/static/patterns/behavioral_chainOfResponsibility.js

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+const CHAIN_OF_RESPONSIBILITY = {
+  id: 'chain_of_responsibility',
+  name: 'Chain of Responsibility',
+  type: 'behavioral',
+  hint: 'delegates commands to a chain of processing objects',
+  codeES5: `function ShoppingCart() {
+this.products = [];
+
+this.addProduct = function(p) {
+  this.products.push(p);
+};
+}
+
+function Discount() {
+this.calc = function(products) {
+  var ndiscount = new NumberDiscount();
+  var pdiscount = new PriceDiscount();
+  var none = new NoneDiscount();
+
+  ndiscount.setNext(pdiscount);
+  pdiscount.setNext(none);
+
+  return ndiscount.exec(products);
+};
+}
+
+function NumberDiscount() {
+this.next = null;
+this.setNext = function(fn) {
+  this.next = fn;
+};
+
+this.exec = function(products) {
+  var result = 0;
+  if (products.length > 3) result = 0.05;
+
+  return result + this.next.exec(products);
+};
+}
+
+function PriceDiscount() {
+this.next = null;
+this.setNext = function(fn) {
+  this.next = fn;
+};
+this.exec = function(products) {
+  var result = 0;
+  var total = products.reduce(function(a, b) {
+    return a + b;
+  });
+
+  if (total >= 500) result = 0.1;
+
+  return result + this.next.exec(products);
+};
+}
+
+function NoneDiscount() {
+this.exec = function() {
+  return 0;
+};
+}
+
+module.exports = [ShoppingCart, Discount];`,
+  codeES6: `class ShoppingCart {
+constructor() {
+  this.products = [];
+}
+
+addProduct(p) {
+  this.products.push(p);
+}
+}
+
+class Discount {
+calc(products) {
+  let ndiscount = new NumberDiscount();
+  let pdiscount = new PriceDiscount();
+  let none = new NoneDiscount();
+  ndiscount.setNext(pdiscount);
+  pdiscount.setNext(none);
+  return ndiscount.exec(products);
+}
+}
+
+class NumberDiscount {
+constructor() {
+  this.next = null;
+}
+
+setNext(fn) {
+  this.next = fn;
+}
+
+exec(products) {
+  let result = 0;
+  if (products.length > 3) result = 0.05;
+
+  return result + this.next.exec(products);
+}
+}
+
+class PriceDiscount {
+constructor() {
+  this.next = null;
+}
+
+setNext(fn) {
+  this.next = fn;
+}
+
+exec(products) {
+  let result = 0;
+  let total = products.reduce((a, b) => a + b);
+
+  if (total >= 500) result = 0.1;
+
+  return result + this.next.exec(products);
+}
+}
+
+class NoneDiscount {
+exec() {
+  return 0;
+}
+}
+
+export { ShoppingCart, Discount };`
+};
+
+export default CHAIN_OF_RESPONSIBILITY;

src/static/patterns/behavioral_command.js

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+const COMMAND = {
+  id: 'command',
+  name: 'Command',
+  type: 'behavioral',
+  hint: 'creates objects which encapsulate actions and parameters',
+  codeES5: `function Cockpit(instruction) {
+this.instruction = instruction;
+}
+Cockpit.prototype.execute = function() {
+this.instruction.execute();
+};
+
+function Turbine() {
+this.speed = 0;
+this.state = false;
+}
+
+Turbine.prototype.on = function() {
+this.state = true;
+this.speed = 100;
+};
+
+Turbine.prototype.off = function() {
+this.speed = 0;
+this.state = false;
+};
+
+Turbine.prototype.speedDown = function() {
+if (!this.state) return;
+
+this.speed -= 100;
+};
+
+Turbine.prototype.speedUp = function() {
+if (!this.state) return;
+
+this.speed += 100;
+};
+
+function OnInstruction(turbine) {
+this.turbine = turbine;
+}
+OnInstruction.prototype.execute = function() {
+this.turbine.on();
+};
+
+function OffInstruction(turbine) {
+this.turbine = turbine;
+}
+OffInstruction.prototype.execute = function() {
+this.turbine.off();
+};
+
+function SpeedUpInstruction(turbine) {
+this.turbine = turbine;
+}
+SpeedUpInstruction.prototype.execute = function() {
+this.turbine.speedUp();
+};
+
+function SpeedDownInstruction(turbine) {
+this.turbine = turbine;
+}
+SpeedDownInstruction.prototype.execute = function() {
+this.turbine.speedDown();
+};
+
+module.exports = [Cockpit, Turbine, OnInstruction, OffInstruction, SpeedUpInstruction, SpeedDownInstruction];`,
+  codeES6: `class Cockpit {
+constructor(instruction) {
+  this.instruction = instruction;
+}
+execute() {
+  this.instruction.execute();
+}
+}
+
+class Turbine {
+constructor() {
+  this.state = false;
+}
+on() {
+  this.state = true;
+}
+off() {
+  this.state = false;
+}
+}
+
+class OnInstruction {
+constructor(turbine) {
+  this.turbine = turbine;
+}
+execute() {
+  this.turbine.on();
+}
+}
+
+class OffInstruction {
+constructor(turbine) {
+  this.turbine = turbine;
+}
+execute() {
+  this.turbine.off();
+}
+}
+
+export { Cockpit, Turbine, OnInstruction, OffInstruction };`
+};
+
+export default COMMAND;

src/static/patterns/behavioral_interpreter.js

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+const INTERPRETER = {
+  id: 'interpteter',
+  name: 'Interpreter',
+  type: 'behavioral',
+  hint: 'implements a specialized language',
+  codeES5: `function Sum(left, right) {
+this.left = left;
+this.right = right;
+}
+
+Sum.prototype.pattern = function() {
+return this.left.pattern() + this.right.pattern();
+};
+
+function Min(left, right) {
+this.left = left;
+this.right = right;
+}
+
+Min.prototype.pattern = function() {
+return this.left.pattern() - this.right.pattern();
+};
+
+function Num(val) {
+this.val = val;
+}
+
+Num.prototype.pattern = function() {
+return this.val;
+};
+
+module.exports = [Num, Min, Sum];`,
+  codeES6: `class Sum {
+constructor(left, right) {
+  this.left = left;
+  this.right = right;
+}
+
+pattern() {
+  return this.left.pattern() + this.right.pattern();
+}
+}
+
+class Min {
+constructor(left, right) {
+  this.left = left;
+  this.right = right;
+}
+
+pattern() {
+  return this.left.pattern() - this.right.pattern();
+}
+}
+
+class Num {
+constructor(val) {
+  this.val = val;
+}
+
+pattern() {
+  return this.val;
+}
+}
+
+export { Num, Min, Sum };`
+};
+
+export default INTERPRETER;

src/static/patterns/behavioral_iterator.js

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+const ITERATOR = {
+  id: 'iterator',
+  name: 'Iterator',
+  type: 'behavioral',
+  hint:
+    'accesses the elements of an object sequentially without exposing its underlying representation',
+  codeES5: `function Pattern(el) {
+this.index = 0;
+this.elements = el;
+}
+
+Pattern.prototype = {
+next: function() {
+  return this.elements[this.index++];
+},
+hasNext: function() {
+  return this.index < this.elements.length;
+}
+};
+
+module.exports = Pattern;`,
+  codeES6: `class Pattern {
+constructor(el) {
+  this.index = 0;
+  this.elements = el;
+}
+
+next() {
+  return this.elements[this.index++];
+}
+
+hasNext() {
+  return this.index < this.elements.length;
+}
+}
+
+export default Pattern;`
+};
+
+export default ITERATOR;