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1848ea3
built some classes for a school system
davidjayfrancis Aug 13, 2019
45191e2
refactored game objects using class syntax instead of function declar…
davidjayfrancis Aug 13, 2019
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154 changes: 154 additions & 0 deletions assignments/lambda-classes.js
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Original file line number Diff line number Diff line change
@@ -1 +1,155 @@
// CODE here for your Lambda Classes
class Person {
constructor(props) {
this.name = props.name;
this.age = props.age;
this.location = props.location;
}
speak() {
console.log(`Hello, my name is ${this.name}, and I am from ${this.location}`);
}
}

class Instructor extends Person {
constructor(props) {
super(props);
this.specialty = props.specialty;
this.favLanguage = props.favLanguage;
this.catchPhrase = props.catchPhrase;

}
demo(str) {
console.log(`Today we are learning about ${str}`);
}
grade(obj, str) {
console.log(`${obj.name} receives a perfect score on ${str}`);
}
changeGrade(obj) {
obj.grade += Math.round(Math.random()*50);
}
checkGrade(obj) {
if (obj.grade >= 70) {
return true;
} return false;
}
}

class Student extends Person {
constructor(props) {
super(props);
this.previousBackground = props.previousBackground;
this.className = props.className;
this.favSubjects = props.favSubjects;
this.grade = props.grade;
}
listsSubjects() {
for (let i=0; i<this.favSubjects.length; i++) {
console.log(this.favSubjects[i]);
}
}
PRAssignment(str) {
console.log(`${this.name} has submitted a PR for ${str}`);
}
sprintChallenge(str) {
console.log(`${this.name} has begun sprint challenge on ${str}`);
}
}

class ProjectManager extends Instructor {
constructor(props) {
super(props);
this.gradClassName = props.gradClassName;
this.favInstructor = props.favInstructor;
}
standUp(channel) {
console.log(`${this.name} announces to ${channel}, @channel standby times!`);
}
debugsCode(obj, subject) {
console.log(`${this.name} debugs ${obj.name}'s code on ${subject}`);
}
}

// two instructors
pace = new Instructor({
name: 'Pace Ellsworth',
location: 'Zoom',
age: 40,
favLanguage: 'Not Javascript',
specialty: 'Wooing people to sleep',
catchPhrase: 'Lets check out that spreadsheet'
});

sylvia = new Instructor({
name: 'Sylvia Wang',
location: 'Palo Alto',
age: 30,
favLanguage: 'Klingon',
catchPhrase: 'Coffee?',
specialty: 'Exciting and precise code demonstrations'
}) ;

// two students
david = new Student({
name: 'David Francis',
age: 33,
location: 'Palo Alto',
previousBackground: 'Research Director',
className: 'WebPT9',
favSubjects: ['cs', 'objects', 'classes'],
grade: 50
});

leo = new Student({
name: 'Leo Tolstoy',
age: 128,
location: 'Russia',
previousBackground: "Author",
className: 'WebPT9',
favSubjects: ['Russian Politics, interpersonal relationships, long works of epic fiction'],
grade: 50
});

// two project managers aka team leads
ray = new ProjectManager({
name: 'Ray Pugh',
age: 25,
location: 'Milwaukee',
gradClassName: 'Super Java Backend Developers',
favInstructor: 'Knell'
});

will = new ProjectManager({
name: 'Will KittenGuy',
age: 32,
location: 'Bedroom',
gradClassName: 'Mystery',
favInstructor: 'Einstein'
});

//tests to see everything is working

console.log(pace); // Instructor object
console.log(david); // Student object
console.log(ray); // PM object

sylvia.demo('partying');
sylvia.grade(david, 'handsomeness');

leo.listsSubjects();
david.PRAssignment('Javascript-III');
leo.sprintChallenge('Novels > 1,000 pages');

ray.standUp("Ray's awesome slack channel");
will.debugsCode(leo, 'Russian literature');

// Let's make sure the grading implementation works =)
console.log(`${david.name}'s grade is: ${david.grade}`) // should be 50
ray.changeGrade(david);
console.log(`${david.name}'s new grade is: ${david.grade}`);
if (ray.checkGrade(david)) {
console.log("DAVID PASSED!!!!!")
} else {
console.log("DAVID IS A FAILURE AND WILL NEVER AMOUNT TO ANYTHING!")
}

// Works =)
236 changes: 236 additions & 0 deletions assignments/prototype-refactor.js
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Expand Up @@ -7,3 +7,239 @@ Prototype Refactor
2. Your goal is to refactor all of this code to use ES6 Classes. The console.log() statements should still return what is expected of them.

*/


// Class version of GameObject:
class GameObject {
constructor(props) {
this.name = props.name;
this.dimensions = props.dimensions;
this.createdAt = props.createdAt;
}
destroy() {
return `${this.name} was removed from the game.`;
}
}

/*
=== CharacterStats ===
* healthPoints
* takeDamage() // prototype method -> returns the string '<object name> took damage.'
* should inherit destroy() from GameObject's prototype
*/

class CharacterStats extends GameObject {
constructor(props) {
super(props);
this.healthPoints = props.healthPoints;
}
takeDamage() {
return `${this.name} took damage!`;
}
checkIfDead() {
if (this.healthPoints <= 0 ) {
return true;
} else {return false;}
}
}

/*
=== Humanoid (Having an appearance or character resembling that of a human.) ===
* team
* weapons
* language
* greet() // prototype method -> returns the string '<object name> offers a greeting in <object language>.'
* should inherit destroy() from GameObject through CharacterStats
* should inherit takeDamage() from CharacterStats
*/

//class Humanoid
class Humanoid extends CharacterStats {
constructor(props) {
super(props);
this.team = props.team;
this.weapons = props.weapons;
this.language = props.language;
}
greet() {
return `${this.name} offers a greeting in ${this.language}`;
}
}

//class hero
class Hero extends Humanoid {
constructor(props) {
super(props);
this.specialAbilities = props.specialAbilities;
this.attackStrength = props.attackStrength;
}
attack(obj) {
obj.healthPoints -= this.attackStrength;
if (obj.checkIfDead() === true) {
console.log(obj.destroy());
} else {
console.log(obj.takeDamage());
console.log(`${obj.name} has ${obj.healthPoints} health points left!`)
}
}
}

//class Villain
class Villain extends Humanoid {
constructor(props) {
super(props);
this.demonStrength = props.demonStrength;
}
summonDemonAttack(obj) {
obj.healthPoints -= this.demonStrength;
if (obj.checkIfDead() === true ) {
console.log(obj.destroy());
} else {
console.log(obj.takeDamage());
console.log(`${obj.name} has ${obj.healthPoints} health points left!`);
}
}
}

/*
* Inheritance chain: GameObject -> CharacterStats -> Humanoid
* Instances of Humanoid should have all of the same properties as CharacterStats and GameObject.
* Instances of CharacterStats should have all of the same properties as GameObject.
*/

// Test you work by un-commenting these 3 objects and the list of console logs below:

const mage = new Humanoid({
createdAt: new Date(),
dimensions: {
length: 2,
width: 1,
height: 1,
},
healthPoints: 5,
name: 'Bruce',
team: 'Mage Guild',
weapons: [
'Staff of Shamalama',
],
language: 'Common Tongue',
});

const swordsman = new Humanoid({
createdAt: new Date(),
dimensions: {
length: 2,
width: 2,
height: 2,
},
healthPoints: 15,
name: 'Sir Mustachio',
team: 'The Round Table',
weapons: [
'Giant Sword',
'Shield',
],
language: 'Common Tongue',
});

const archer = new Humanoid({
createdAt: new Date(),
dimensions: {
length: 1,
width: 2,
height: 4,
},
healthPoints: 10,
name: 'Lilith',
team: 'Forest Kingdom',
weapons: [
'Bow',
'Dagger',
],
language: 'Elvish',
});
// instatiate a hero!
const hero = new Hero({
name: 'Tristan Muntsinger',
createdAt: new Date(),
healthPoints: 20,
dimensions: {
length: 1,
height: 4,
width: 2
},
team: 'Knights of Voldor',
weapons: ['Greatsword, Smegleborn Axe'],
language: 'High Arken',
specialAbilities: ['Great Strike', 'Swing of the Gods'],
attackStrength: 4
});

// instantiate a villain!
const villain = new Villain({
name: 'Brutal Slinglord',
createdAt: new Date(),
healthPoints: 22,
dimensions: {
length: 1,
height: 7,
width: 5
},
team: 'Demons of Vallath',
weapons: ['Demon Blade, Soul Spear'],
language: 'Demon',
demonStrength: 5
});

// Tests and then a game using the objects and their methods.

console.log(mage.createdAt); // Today's date
console.log(archer.dimensions); // { length: 1, width: 2, height: 4 }
console.log(swordsman.healthPoints); // 15
console.log(mage.name); // Bruce
console.log(swordsman.team); // The Round Table
console.log(mage.weapons); // Staff of Shamalama
console.log(archer.language); // Elvish
console.log(archer.greet()); // Lilith offers a greeting in Elvish.
console.log(mage.takeDamage()); // Bruce took damage.
console.log(swordsman.destroy()); // Sir Mustachio was removed from the game.


// Let's play a game!
while (hero.healthPoints > 0 && villain.healthPoints > 0) {
console.log('The hero attacks first.');
hero.attack(villain);
console.log("Now it is the Villain's turn...");
villain.summonDemonAttack(hero);
}
console.log('The game is over. The battle is won. Play again soon.')



// Stretch task:
// * Create Villain and Hero constructor functions that inherit from the Humanoid constructor function.
// * 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;
// * Create two new objects, one a villain and one a hero and fight it out with methods!

/*
function Hero(attrs) {
Humanoid.call(this, attrs);
this.specialAbilities = attrs.specialAbilities;
this.attackStrength = attrs.attackStrength;
}
Hero.prototype = Object.create(Humanoid.prototype);
// takes in an object being attacked, and adjusts its healthpoints by the attack amount.
// checks if dead, and returns the appropriate response
Hero.prototype.attack = function(obj) {
obj.healthPoints -= this.attackStrength;
if (obj.checkIfDead() === true) {
console.log(obj.destroy());
} else {
console.log(obj.takeDamage());
console.log(`${obj.name} has ${obj.healthPoints} health points left!`)
}
}
*/