rpg

index.html

<div id="game">
  <div id="stats">
    <span class="stat">XP: <strong><span id="xp">0</span></strong></span>
    <span class="stat">Health: <strong><span id="health">100</span></strong></span>
    <span class="stat">Gold: <strong><span id="gold">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>

rpg.markdown

rpg

A Pen by freeCodeCamp.org on CodePen.

License.

script.js

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

const button1 = document.getElementById("button1");
const button2 = document.getElementById("button2");
const button3 = document.getElementById("button3");
const text = document.getElementById("text");
const xpText = document.getElementById("xp");
const healthText = document.getElementById("health");
const goldText = document.getElementById("gold");
const monsterStats = document.getElementById("monsterStats");
const monsterNameText = document.getElementById("monsterName");
const monsterHealthText = document.getElementById("monsterHealth");

const monsters = [
  {
    name: "slime",
    level: 2,
    health: 15
  },
  {
    name: "fanged beast",
    level: 8,
    health: 60
  },
  {
    name: "dragon",
    level: 20,
    health: 300
  },
]

const weapons = [
  {
    name: "stick",
    power: 5
  },
  {
    name: "dagger",
    power: 30
  },
  {
    name: "claw hammer",
    power: 50
  },
  {
    name: "sword",
    power: 100
  }
]

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, goEasterEgg],
    text: 'The monster screams "Arg!" as it dies. You gain expereince 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 game
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 goFight() {
  update(locations[3]);
  monsterHealth = monsters[fighting].health;
  monsterStats.style.display = "block";
  monsterNameText.innerText = monsters[fighting].name;
  monsterHealthText.innerText = monsterHealth;
}

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

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

function sellWeapon() {
  if (inventory.length >= 2) {
    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 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) + 1));
  } else {
    text.innerText += " You miss."
  }
  healthText.innerText = health;
  monsterHealthText.innerText = monsterHealth;
  
  if (health <= 0) {
    lose();
  } else if (monsterHealth <= 0) {
    fighting === 2 ? winGame() : defeatMonster();
  }
  
  if (Math.random() <= .1 && currentWeapon !== 0) {
    text.innerText += " Your " +  inventory.pop() + " breaks."
    currentWeapon--;
  }
}

function getMonsterAttackValue(level) {
  let hit = (level * 5) - (Math.floor(Math.random() * xp));
  console.log(hit)
  return hit;
}

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

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

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

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

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();
}

// Easter egg

function goEasterEgg() {
  update(locations[7])
}

function pickTwo() {
 pick(2);
}

function pickEight() {
 pick(8);
}

function pick(guess) {
  let 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.indexOf(guess) !== -1) {
    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();
    }
  }
}

style.css

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 {
  border: 1px black solid;
  padding: 5px;
}

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

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

.stat {
  padding-right: 10px;
}