210 lines
5.0 KiB
Markdown
210 lines
5.0 KiB
Markdown
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---
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id: 62a8c4db0710f3260f867a92
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title: Step 76
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challengeType: 0
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dashedName: step-76
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---
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# --description--
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What if the player doesn't have enough gold to buy health? When you want to run code conditionally, you can use the `if` statement. Put all of the code in your `buyHealth` function inside an `if` statement. For example:
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```js
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function myFunction() {
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if ("condition") {
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console.log("Hello World!");
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}
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}
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```
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For now, follow that pattern to use a string `condition` inside your `if` statement.
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# --hints--
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Your `buyHealth` function should have an `if` statement.
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```js
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assert.match(buyHealth.toString(), /if/);
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```
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Your `if` statement should have the string `condition` for the condition.
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```js
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assert.match(buyHealth.toString(), /if\s*\(('|")condition\1\)/);
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```
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All of your `buyHealth` code should be inside the `if` statement.
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```js
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assert.match(buyHealth.toString(), /if\s*\(('|")condition\1\)\s*\{[\s\S]*\}/);
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```
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# --seed--
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## --seed-contents--
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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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<link rel="stylesheet" href="./styles.css">
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<title>RPG - Dragon Repeller</title>
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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">
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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.
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</div>
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</div>
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<script src="./script.js"></script>
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</body>
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</html>
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```
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```css
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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, #stats {
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border: 1px solid black;
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padding: 5px;
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color: black;
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}
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#monsterStats {
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display: none;
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border: 1px solid black;
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padding: 5px;
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color: white;
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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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```
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```js
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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 monsterName = 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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--fcc-editable-region--
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function buyHealth() {
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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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}
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--fcc-editable-region--
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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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```
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