291 lines
6.9 KiB
Markdown
291 lines
6.9 KiB
Markdown
---
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id: 5d6f72657c812010bf3327d0
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title: Part 57
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challengeType: 0
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dashedName: part-57
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---
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# --description--
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Before we write the code for the `buyWeapon` function, use `const` to create a `weapons` variable right above the `locations` array. Set it to equal an empty array.
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# --hints--
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See description above for instructions.
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```js
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assert.deepStrictEqual(weapons, []);
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```
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# --seed--
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## --before-user-code--
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```html
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<!DOCTYPE html>
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<html lang="en" >
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<head>
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<meta charset="UTF-8">
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<title>RPG - Dragon Repeller</title>
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<style>
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body {
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background-color: darkblue;
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}
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#text {
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background-color: black;
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color: white;
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padding: 10px;
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}
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#game {
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max-width: 500px;
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max-height: 400px;
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background-color: lightgray;
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color: white;
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margin: 0 auto;
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padding: 10px;
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}
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#controls {
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border: 1px black solid;
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padding: 5px;
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}
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#stats {
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border: 1px black solid;
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color: black;
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padding: 5px;
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}
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#monsterStats {
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display: none;
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border: 1px black solid;
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color: white;
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padding: 5px;
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background-color: red;
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}
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.stat {
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padding-right: 10px;
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}
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</style>
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</head>
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<body>
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<div id="game">
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<div id="stats">
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<span class="stat">XP: <strong><span id="xpText">0</span></strong></span>
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<span class="stat">Health: <strong><span id="healthText">100</span></strong></span>
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<span class="stat">Gold: <strong><span id="goldText">50</span></strong></span>
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</div>
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<div id="controls">
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<button id="button1">Go to store</button>
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<button id="button2">Go to cave</button>
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<button id="button3">Fight dragon</button>
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</div>
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<div id="monsterStats">
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<span class="stat">Monster Name: <strong><span id="monsterName"></span></strong></span>
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<span class="stat">Health: <strong><span id="monsterHealth"></span></strong></span>
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</div>
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<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>
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</div>
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```
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## --after-user-code--
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```html
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</body>
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</html>
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```
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## --seed-contents--
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```html
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<script>
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let xp = 0;
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let health = 100;
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let gold = 50;
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let currentWeapon = 0;
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let fighting;
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let monsterHealth;
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let inventory = ["stick"];
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const button1 = document.querySelector('#button1');
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const button2 = document.querySelector("#button2");
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const button3 = document.querySelector("#button3");
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const text = document.querySelector("#text");
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const xpText = document.querySelector("#xpText");
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const healthText = document.querySelector("#healthText");
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const goldText = document.querySelector("#goldText");
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const monsterStats = document.querySelector("#monsterStats");
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const monsterNameText = document.querySelector("#monsterName");
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const monsterHealthText = document.querySelector("#monsterHealth");
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const locations = [
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{
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name: "town square",
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"button text": ["Go to store", "Go to cave", "Fight dragon"],
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"button functions": [goStore, goCave, fightDragon],
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text: "You are in the town square. You see a sign that says \"Store.\""
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},
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{
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name: "store",
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"button text": ["Buy 10 health (10 gold)", "Buy weapon (30 gold)", "Go to town square"],
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"button functions": [buyHealth, buyWeapon, goTown],
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text: "You enter the store."
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},
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{
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name: "cave",
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"button text": ["Fight slime", "Fight fanged beast", "Go to town square"],
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"button functions": [fightSlime, fightBeast, goTown],
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text: "You enter the cave. You see some monsters."
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}
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];
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// initialize buttons
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button1.onclick = goStore;
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button2.onclick = goCave;
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button3.onclick = fightDragon;
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function update(location) {
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button1.innerText = location["button text"][0];
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button2.innerText = location["button text"][1];
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button3.innerText = location["button text"][2];
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button1.onclick = location["button functions"][0];
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button2.onclick = location["button functions"][1];
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button3.onclick = location["button functions"][2];
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text.innerText = location.text;
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}
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function goTown() {
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update(locations[0]);
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}
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function goStore() {
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update(locations[1]);
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}
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function goCave() {
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update(locations[2]);
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}
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function fightDragon() {
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console.log("Fighting dragon.");
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}
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function buyHealth() {
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if (gold >= 10) {
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gold -= 10;
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health += 10;
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goldText.innerText = gold;
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healthText.innerText = health;
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} else {
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text.innerText = "You do not have enough gold to buy health.";
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}
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}
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function buyWeapon() {
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}
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function fightSlime() {
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}
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function fightBeast() {
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}
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</script>
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```
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# --solutions--
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```html
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<script>
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let xp = 0;
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let health = 100;
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let gold = 50;
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let currentWeapon = 0;
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let fighting;
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let monsterHealth;
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let inventory = ["stick"];
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const button1 = document.querySelector('#button1');
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const button2 = document.querySelector("#button2");
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const button3 = document.querySelector("#button3");
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const text = document.querySelector("#text");
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const xpText = document.querySelector("#xpText");
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const healthText = document.querySelector("#healthText");
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const goldText = document.querySelector("#goldText");
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const monsterStats = document.querySelector("#monsterStats");
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const monsterNameText = document.querySelector("#monsterName");
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const monsterHealthText = document.querySelector("#monsterHealth");
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const weapons = [];
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const locations = [
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{
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name: "town square",
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"button text": ["Go to store", "Go to cave", "Fight dragon"],
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"button functions": [goStore, goCave, fightDragon],
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text: "You are in the town square. You see a sign that says \"Store.\""
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},
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{
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name: "store",
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"button text": ["Buy 10 health (10 gold)", "Buy weapon (30 gold)", "Go to town square"],
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"button functions": [buyHealth, buyWeapon, goTown],
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text: "You enter the store."
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},
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{
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name: "cave",
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"button text": ["Fight slime", "Fight fanged beast", "Go to town square"],
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"button functions": [fightSlime, fightBeast, goTown],
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text: "You enter the cave. You see some monsters."
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}
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];
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// initialize buttons
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button1.onclick = goStore;
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button2.onclick = goCave;
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button3.onclick = fightDragon;
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function update(location) {
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button1.innerText = location["button text"][0];
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button2.innerText = location["button text"][1];
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button3.innerText = location["button text"][2];
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button1.onclick = location["button functions"][0];
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button2.onclick = location["button functions"][1];
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button3.onclick = location["button functions"][2];
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text.innerText = location.text;
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}
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function goTown() {
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update(locations[0]);
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}
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function goStore() {
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update(locations[1]);
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}
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function goCave() {
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update(locations[2]);
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}
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function fightDragon() {
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console.log("Fighting dragon.");
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}
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function buyHealth() {
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if (gold >= 10) {
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gold -= 10;
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health += 10;
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goldText.innerText = gold;
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healthText.innerText = health;
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} else {
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text.innerText = "You do not have enough gold to buy health.";
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}
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}
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function buyWeapon() {
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}
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function fightSlime() {
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}
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function fightBeast() {
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}
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</script>
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```
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