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Sascha
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added prototype.js without stretchgoal
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‎assignments/prototypes.js‎

Lines changed: 110 additions & 4 deletions
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@@ -15,13 +15,31 @@
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* dimensions (These represent the character's size in the video game)
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* destroy() // prototype method that returns: `${this.name} was removed from the game.`
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*/
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function GameObject(gameObjectAttributes) {
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this.createdAt = gameObjectAttributes.createdAt;
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this.name = gameObjectAttributes.name;
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this.dimensions = gameObjectAttributes.dimensions;
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}
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GameObject.prototype.destroy = function () {
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return `${this.name} was removed from the game.`;
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};
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/*
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=== CharacterStats ===
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* healthPoints
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* takeDamage() // prototype method -> returns the string '<object name> took damage.'
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* should inherit destroy() from GameObject's prototype
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*/
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function CharacterStats(characterStatsAttributes) {
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GameObject.call(this, characterStatsAttributes);
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this.healthPoints = characterStatsAttributes.healthPoints;
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}
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CharacterStats.prototype = Object.create(GameObject.prototype)
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CharacterStats.prototype.takeDamage = function() {
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return `${this.name} took damage`;
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}
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/*
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=== Humanoid (Having an appearance or character resembling that of a human.) ===
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* should inherit destroy() from GameObject through CharacterStats
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* should inherit takeDamage() from CharacterStats
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*/
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function Humanoid(humanoidAttributes) {
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CharacterStats.call(this, humanoidAttributes)
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this.team = humanoidAttributes.team;
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this.weapons = humanoidAttributes.weapons;
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this.language = humanoidAttributes.language
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GameObject.call(this, humanoidAttributes)
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}
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Humanoid.prototype = Object.create(CharacterStats.prototype)
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Humanoid.prototype.greet = function () {
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return `${this.name} offers a greeting in ${this.language}.`
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};
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/*
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* Inheritance chain: GameObject -> CharacterStats -> Humanoid
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* Instances of Humanoid should have all of the same properties as CharacterStats and GameObject.
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// Test you work by un-commenting these 3 objects and the list of console logs below:
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/*
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const mage = new Humanoid({
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createdAt: new Date(),
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dimensions: {
@@ -102,9 +131,86 @@
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console.log(archer.greet()); // Lilith offers a greeting in Elvish.
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console.log(mage.takeDamage()); // Bruce took damage.
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console.log(swordsman.destroy()); // Sir Mustachio was removed from the game.
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*/
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// Stretch task:
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// * Create Villain and Hero constructor functions that inherit from the Humanoid constructor function.
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// * Give the Hero and Villains different methods that could be used to remove health points from objects which could result in destruction if health gets to 0 or drops below 0;
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// * Create two new objects, one a villain and one a hero and fight it out with methods!
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// * Create two new objects, one a villain and one a hero and fight it out with methods!
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/* function Player(name) {
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this.name = name
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}
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Person.prototype.sayName = function sayName() {
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console.log(`My name is ${this.name} I am team ${this.team}`);
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function GreenTeamPlayer(name) {
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Player.call(this, name)
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this.team = 'green'
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}
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GreenTeamPlayer.prototype = Object.create(Player.prototype)
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function RedTeamPlayer(name) {
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Player.call(this, name)
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this.team = 'red'
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}
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RedTeamPlayer.prototype = Object.create(Player.prototype)
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const dan = new GreenTeamPlayer('Dan')
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const cat = new RedTeamPlayer('Rosie')
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dan.name()
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cat.sayName()
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*/
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/*
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# Prototypes Challenge
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Overview: Study the console.log() and object method invocations at the bottom of the page. Update the Animal and Dog constructors so that the logs and methods match the commented result next to them.
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Challenge: Add the missing `speak` method, complete the `eat` method
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*/
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/*
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function Animal(attributes) {
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this.weight = attributes.weight;
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this.height = attributes.height;
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this.food = attributes.food;
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}
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Animal.prototype.eat = function() {
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console.log(`The ${this.animalCommonName} eats ${this.food}`);
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}
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Animal.prototype.speak = function() {
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console.log(`${this.name} says: ${this.bark}`);
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}
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function Dog(dogAttributes) {
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// Connect the attributes so we can use the this keyword
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Animal.call(this, dogAttributes);
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this.name = dogAttributes.name;
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this.bark = dogAttributes.bark;
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this.animalCommonName = dogAttributes.animalCommonName;
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}
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// Set up our __proto__ inheritance to Animal
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Dog.prototype = Object.create(Animal.prototype);
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const dog = new Dog({
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'name': 'Dr. Doggo',
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'animalCommonName': "dog",
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'weight': 40,
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'height': 12,
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'food': 'meat',
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'bark': 'Woof!'
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});
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console.log(dog.animalCommonName); // "dog"
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dog.eat(); // "The dog eats meat"
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dog.speak(); // "Dr. Doggo says: Woof!"
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*/

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