Learn Basic JavaScript by Building a Role Playing Game - Step 75

JavaScript
1

Tell us what’s happening:

Its not working when I try to update the healthText button to contain the text of my health variable.

Your code so far

<!-- file: index.html -->
<!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>

/* file: styles.css */
body {
  background-color: #0a0a23;
}

#text {
  background-color: #0a0a23;
  color: #ffffff;
  padding: 10px;
}

#game {
  max-width: 500px;
  max-height: 400px;
  background-color: #ffffff;
  color: #ffffff;
  margin: 30px auto 0px;
  padding: 10px;
}

#controls,
#stats {
  border: 1px solid #0a0a23;
  padding: 5px;
  color: #0a0a23;
}

#monsterStats {
  display: none;
  border: 1px solid #0a0a23;
  padding: 5px;
  color: #ffffff;
  background-color: #c70d0d;
}

.stat {
  padding-right: 10px;
}

button {
  cursor: pointer;
  color: #0a0a23;
  background-color: #feac32;
  background-image: linear-gradient(#fecc4c, #ffac33);
  border: 3px solid #feac32;
}

/* file: script.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 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."
  }
];

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

function update(location) {
  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 fightDragon() {
  console.log("Fighting dragon.");
}


// User Editable Region

function buyHealth() {
  gold -= 10;
  health += 10;
  document.querySelector('#healthText') = health;
 
}

// User Editable Region


function buyWeapon() {

}

function fightSlime() {

}

function fightBeast() {

}

Your browser information:

User Agent is: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/121.0.0.0 Safari/537.36

Challenge Information:

Learn Basic JavaScript by Building a Role Playing Game - Step 75

2

you already have the variable, look at line 15, you don’t need to make the variable to contain the html element, you just need to change the text value using the appropriate property

1 Like
3

Thank you so much @ILM !

1 Like
4

I didn’t get it, can u elaborate …??

5

If you have a question about a specific challenge as it relates to your written code for that challenge and need some help, click the Ask for Help button located on the challenge (it looks like a question mark). This button only appears if you have tried to submit an answer at least three times.

The Ask for Help button will create a new topic with all code you have written and include a link to the challenge also. You will still be able to ask any questions in the post before submitting it to the forum.

Thank you.

6

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