JS Week 6 - 7/5/22 class

boggle.js

class Die {
    // letters = array of strings of letters on this die
    constructor(letters) {
        this.allLetters = letters;
        this.currentLetter = letters[0]
    }

    reroll() {
        const randomIndex = Math.floor(Math.random() * this.allLetters.length)
        this.currentLetter = this.allLetters[randomIndex];
    }
}

class Board {
    constructor() {
        this.dice = [];
        for(let i = 0; i < 9; i++) {
            this.dice.push( new Die(["A", "R", "C", "D", "E", "N"]) ) // all dice will have the same sides
        }
    }

    shuffle() {
        // shuffle die locations in array
        this.dice.sort(() => (Math.random() > 0.5) ? 1 : -1)
        // reroll each die
        for(const die of this.dice) {
            die.reroll();
        }
    }
}

class Game {
    constructor() {
        this.board = new Board();
    }

    start() {
        this.board.shuffle()
        
    }
}

const game = new Game();
game.start();

scratch.js

// function doItManyTimes() {

//     for(let i = 0; i < 3; i++) {
//         doSomething()
//     }
// }

// function doSomething() {

//     for(let i = 0; i < 3; i++) {
//         console.log('something')
//     }
// }

// doItManyTimes();

class Team {
    constructor(name) {
        this.name = name;
        this.players = [];
    }

    addPlayer = (player) => {
        if(player instanceof Player) {
            this.players.push(player);
        } else {
            throw new Error('You can only add an instance of a Player.')
        }
    }

    describe = () => {
        return `${this.name} has ${this.players.length} players.`;
    }
}

class Player {
    constructor(name, position) {
        this.name = name;
        this.position = position;
    }

    describe = () => {
        return `${this.name} plays ${this.position}.`;
    }
}

scratch.test.js

const expect = chai.expect;

describe("Team Class", function() {
    it("should save the name to the name property", function() {
        // Arrange
        const newTeamName = "Lakers";
        // Act
        const newTeam = new Team(newTeamName)
        // Assert
        expect(newTeam.name).to.equal(newTeamName)
    })
    it("should add a valid player", function() {
        // Arrange
        const newTeam = new Team("Lakers")
        // Act
        newTeam.addPlayer(new Player("Mia", "defense"))
        // Assert
        expect(newTeam.players.length).to.equal(1)
        expect(newTeam.players[0].name).to.equal("Mia")
        expect(newTeam.players[0].position).to.equal("defense")
    })
})