main.js

let xp = 0;
let health = 100;
let gold = 50;
let currentWeapon = 0;
let fighting;
let monsterHealth;
let inventory = ["stick"];

const button1 = document.querySelector('#button1');
const button2 = document.querySelector("#button2");
const button3 = document.querySelector("#button3");
const text = document.querySelector("#text");
const xpText = document.querySelector("#xpText");
const healthText = document.querySelector("#healthText");
const goldText = document.querySelector("#goldText");
const monsterStats = document.querySelector("#monsterStats");
const monsterName = document.querySelector("#monsterName");
const monsterHealthText = document.querySelector("#monsterHealth");
const weapons = [
    { name: 'stick', power: 5 },
    { name: 'dagger', power: 30 },
    { name: 'claw hammer', power: 50 },
    { name: 'sword', power: 100 }
];
const monsters = [
    {
    name: "slime",
    level: 2,
    health: 15
    },
    {
    name: "fanged beast",
    level: 8,
    health: 60
    },
    {
    name: "dragon",
    level: 20,
    health: 300
    }
]
const locations = [
    {
    name: "town square",
    "button text": ["Go to store", "Go to cave", "Fight dragon"],
    "button functions": [goStore, goCave, fightDragon],
    text: "You are in the town square. You see a sign that says \"Store\"."
    },
    {
    name: "store",
    "button text": ["Buy 10 health (10 gold)", "Buy weapon (30 gold)", "Go to town square"],
    "button functions": [buyHealth, buyWeapon, goTown],
    text: "You enter the store."
    },
    {
    name: "cave",
    "button text": ["Fight slime", "Fight fanged beast", "Go to town square"],
    "button functions": [fightSlime, fightBeast, goTown],
    text: "You enter the cave. You see some monsters."
    },
    {
    name: "fight",
    "button text": ["Attack", "Dodge", "Run"],
    "button functions": [attack, dodge, goTown],
    text: "You are fighting a monster."
    },
    {
    name: "kill monster",
    "button text": ["Go to town square", "Go to town square", "Go to town square"],
    "button functions": [goTown, goTown, easterEgg],
    text: 'The monster screams "Arg!" as it dies. You gain experience points and find gold.'
    },
    {
    name: "lose",
    "button text": ["REPLAY?", "REPLAY?", "REPLAY?"],
    "button functions": [restart, restart, restart],
    text: "You die. ☠"
    },
    { 
    name: "win", 
    "button text": ["REPLAY?", "REPLAY?", "REPLAY?"], 
    "button functions": [restart, restart, restart], 
    text: "You defeat the dragon! YOU WIN THE GAME! 🎉" 
    },
    {
    name: "easter egg",
    "button text": ["2", "8", "Go to town square?"],
    "button functions": [pickTwo, pickEight, goTown],
    text: "You find a secret game. Pick a number above. Ten numbers will be randomly chosen between 0 and 10. If the number you choose matches one of the random numbers, you win!"
    }
];

// initialize buttons
button1.onclick = goStore;
button2.onclick = goCave;
button3.onclick = fightDragon;

function update(location) {
    monsterStats.style.display = "none";
    button1.innerText = location["button text"][0];
    button2.innerText = location["button text"][1];
    button3.innerText = location["button text"][2];
    button1.onclick = location["button functions"][0];
    button2.onclick = location["button functions"][1];
    button3.onclick = location["button functions"][2];
    text.innerHTML = location.text;
}

function goTown() {
    update(locations[0]);
}

function goStore() {
    update(locations[1]);
}

function goCave() {
    update(locations[2]);
}

function buyHealth() {
    if (gold >= 10) {
    gold -= 10;
    health += 10;
    goldText.innerText = gold;
    healthText.innerText = health;
    } else {
    text.innerText = "You do not have enough gold to buy health.";
    }
}

function buyWeapon() {
    if (currentWeapon < weapons.length - 1) {
    if (gold >= 30) {
        gold -= 30;
        currentWeapon++;
        goldText.innerText = gold;
        let newWeapon = weapons[currentWeapon].name;
        text.innerText = "You now have a " + newWeapon + ".";
        inventory.push(newWeapon);
        text.innerText += " In your inventory you have: " + inventory;
    } else {
        text.innerText = "You do not have enough gold to buy a weapon.";
    }
    } else {
    text.innerText = "You already have the most powerful weapon!";
    button2.innerText = "Sell weapon for 15 gold";
    button2.onclick = sellWeapon;
    }
}

function sellWeapon() {
    if (inventory.length > 1) {
    gold += 15;
    goldText.innerText = gold;
    let currentWeapon = inventory.shift();
    text.innerText = "You sold a " + currentWeapon + ".";
    text.innerText += " In your inventory you have: " + inventory;
    } else {
    text.innerText = "Don't sell your only weapon!";
    }
}

function fightSlime() {
    fighting = 0;
    goFight();
}

function fightBeast() {
    fighting = 1;
    goFight();
}

function fightDragon() {
    fighting = 2;
    goFight();
}

function goFight() {
    update(locations[3]);
    monsterHealth = monsters[fighting].health;
    monsterStats.style.display = "block";
    monsterName.innerText = monsters[fighting].name;
    monsterHealthText.innerText = monsterHealth;
}

function attack() {
    text.innerText = "The " + monsters[fighting].name + " attacks.";
    text.innerText += " You attack it with your " + weapons[currentWeapon].name + ".";
    health -= getMonsterAttackValue(monsters[fighting].level);
    if (isMonsterHit()) {
    monsterHealth -= weapons[currentWeapon].power + Math.floor(Math.random() * xp) + 1;    
    } else {
    text.innerText += " You miss.";
    }
    healthText.innerText = health;
    monsterHealthText.innerText = monsterHealth;
    if (health <= 0) {
    lose();
    } else if (monsterHealth <= 0) {
    if (fighting === 2) {
        winGame();
    } else {
        defeatMonster();
    }
    }
    if (Math.random() <= .1 && inventory.length !== 1) {
    text.innerText += " Your " + inventory.pop() + " breaks.";
    currentWeapon--;
    }
}

function getMonsterAttackValue(level) {
  const hit = (level * 5) - (Math.floor(Math.random() * xp));
    console.log(hit);
    return hit > 0 ? hit : 0;
}

function isMonsterHit() {
    return Math.random() > .2 || health < 20;
}

function dodge() {
    text.innerText = "You dodge the attack from the " + monsters[fighting].name;
}

function defeatMonster() {
  gold += Math.floor(monsters[fighting].level * 6.7);
    xp += monsters[fighting].level;
    goldText.innerText = gold;
    xpText.innerText = xp;
    update(locations[4]);
}

function lose() {
    update(locations[5]);
}

function winGame() {
    update(locations[6]);
}

function restart() {
    xp = 0;
    health = 100;
    gold = 50;
    currentWeapon = 0;
    inventory = ["stick"];
    goldText.innerText = gold;
    healthText.innerText = health;
    xpText.innerText = xp;
    goTown();
}

function easterEgg() {
    update(locations[7]);
}

function pickTwo() {
    pick(2);
}

function pickEight() {
    pick(8);
}

function pick(guess) {
    const numbers = [];
    while (numbers.length < 10) {
    numbers.push(Math.floor(Math.random() * 11));
    }
    text.innerText = "You picked " + guess + ". Here are the random numbers:\n";
    for (let i = 0; i < 10; i++) {
    text.innerText += numbers[i] + "\n";
    }
    if (numbers.includes(guess)) {
    text.innerText += "Right! You win 20 gold!";
    gold += 20;
    goldText.innerText = gold;
    } else {
    text.innerText += "Wrong! You lose 10 health!";
    health -= 10;
    healthText.innerText = health;
    if (health <= 0) {
        lose();
    }
    }
}