freeCodeCamp/curriculum/challenges/german/15-javascript-algorithms-an.../learn-basic-javascript-by-b.../62a8f20463b324759953edad.md

8.8 KiB

id title challengeType dashedName
62a8f20463b324759953edad Step 136 0 step-136

--description--

At the end of your code, create a restart function. Inside this function, set xp to 0, health to 100, gold to 50, currentWeapon to 0, and set inventory to an array with the string stick.

Also update the innerText properties of goldText, healthText, and xpText to their current values.

Finally, call the goTown() function.

--hints--

You should use the function keyword to declare restart.

assert.match(code, /function\s+restart/);

Your restart function should set xp to 0.

assert.match(restart.toString(), /xp\s*=\s*0/);

Your restart function should set health to 100.

assert.match(restart.toString(), /health\s*=\s*100/);

Your restart function should set gold to 50.

assert.match(restart.toString(), /gold\s*=\s*50/);

Your restart function should set currentWeapon to 0.

assert.match(restart.toString(), /currentWeapon\s*=\s*0/);

Your restart function should set inventory to an array with the string stick.

assert.match(restart.toString(), /inventory\s*=\s*\[\s*('|")stick\1\s*\]/);

Your restart function should call the goTown() function.

assert.match(restart.toString(), /goTown\(\)/);

You should set goldText.innerText to the value of gold.

assert.match(restart.toString(), /goldText\.innerText\s*=\s*gold/);

You should set healthText.innerText to the value of health.

assert.match(restart.toString(), /healthText\.innerText\s*=\s*health/);

You should set xpText.innerText to the value of xp.

assert.match(restart.toString(), /xpText\.innerText\s*=\s*xp/);

--seed--

--seed-contents--

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="utf-8">
    <link rel="stylesheet" href="./styles.css">
    <title>RPG - Dragon Repeller</title>
</head>
<body>
    <div id="game">
        <div id="stats">
            <span class="stat">XP: <strong><span id="xpText">0</span></strong></span>
            <span class="stat">Health: <strong><span id="healthText">100</span></strong></span>
            <span class="stat">Gold: <strong><span id="goldText">50</span></strong></span>
        </div>
        <div id="controls">
            <button id="button1">Go to store</button>
            <button id="button2">Go to cave</button>
            <button id="button3">Fight dragon</button>
        </div>
        <div id="monsterStats">
            <span class="stat">Monster Name: <strong><span id="monsterName"></span></strong></span>
            <span class="stat">Health: <strong><span id="monsterHealth"></span></strong></span>
        </div>
        <div id="text">
            Welcome to Dragon Repeller. You must defeat the dragon that is preventing people from leaving the town. You are in the town square. Where do you want to go? Use the buttons above.
        </div>
    </div>
    <script src="./script.js"></script>
</body>
</html>
body {
    background-color: darkblue;
}

#text {
    background-color: black;
    color: white;
    padding: 10px;
}

#game {
    max-width: 500px;
    max-height: 400px;
    background-color: lightgray;
    color: white;
    margin: 0 auto;
    padding: 10px;
}

#controls, #stats {
    border: 1px solid black;
    padding: 5px;
    color: black;
}

#monsterStats {
    display: none;
    border: 1px solid black;
    padding: 5px;
    color: white;
    background-color: red;
}

.stat {
    padding-right: 10px;
}
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, goTown],
        text: 'The monster screams "Arg!" as it dies. You gain experience points and find gold.'
    },
];

// 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.innerText = 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 -= monsters[fighting].level;
  monsterHealth -= weapons[currentWeapon].power + Math.floor(Math.random() * xp) + 1;
  healthText.innerText = health;
  monsterHealthText.innerText = monsterHealth;
  if (health <= 0) {
    lose();
  } else if (monsterHealth <= 0) {
    defeatMonster();
  }
}

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]);
}

--fcc-editable-region--

--fcc-editable-region--