--description--

The final condition you need to add inside the Player class is to ensure that the player stays within the boundaries of the canvas screen and doesn't move too far off to the left.

Create an if statement, to check if the player's x position is less than the width.

--hints--

Your condition should check if the player's x position is less than the width

const player = new Player();
assert.match(player.update.toString(), /if\s*\(\s*this\.position\.x\s*<\s*this\.width\s*\)\s*{\s*}/);

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html

<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta http-equiv="X-UA-Compatible" content="IE=edge" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Learn Intermediate OOP by Building a Platformer Game</title>
    <link rel="stylesheet" href="./styles.css" />
  </head>
  <body>
    <div class="start-screen">
      <h1 class="main-title">freeCodeCamp Code Warrior</h1>
      <p class="instructions">
        Help the main player navigate to the yellow checkpoints.
      </p>
      <p class="instructions">
        Use the keyboard arrows to move the player around.
      </p>
      <p class="instructions">You can also use the spacebar to jump.</p>

      <div class="btn-container">
        <button class="btn" id="start-btn">Start Game</button>
      </div>
    </div>

    <div class="checkpoint-screen">
      <h2>Congrats!</h2>
      <p>You reached the last checkpoint.</p>
    </div>

    <canvas id="canvas"></canvas>

    <script src="./script.js"></script>
  </body>
</html>

css

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --main-bg-color: #0a0a23;
  --section-bg-color: #ffffff;
  --golden-yellow: #feac32;
}

body {
  background-color: var(--main-bg-color);
}

.start-screen {
  background-color: var(--section-bg-color);
  width: 100%;
  position: absolute;
  top: 50%;
  left: 50%;
  margin-right: -50%;
  transform: translate(-50%, -50%);
  border-radius: 30px;
  padding: 20px;
  padding-bottom: 5px;
}

.main-title {
  text-align: center;
}

.instructions {
  text-align: center;
  font-size: 1.2rem;
  margin: 15px;
  line-height: 2rem;
}

.btn {
  cursor: pointer;
  width: 100px;
  margin: 10px;
  color: #0a0a23;
  font-size: 18px;
  background-color: var(--golden-yellow);
  background-image: linear-gradient(#fecc4c, #ffac33);
  border-color: var(--golden-yellow);
  border-width: 3px;
}

.btn:hover {
  background-image: linear-gradient(#ffcc4c, #f89808);
}

.btn-container {
  display: flex;
  align-items: center;
  justify-content: center;
}

.checkpoint-screen {
  position: absolute;
  left: 0;
  right: 0;
  margin-left: auto;
  margin-right: auto;
  width: 100%;
  text-align: center;
  background-color: var(--section-bg-color);
  border-radius: 20px;
  padding: 10px;
  display: none;
}

#canvas {
  display: none;
}

@media (min-width: 768px) {
  .start-screen {
    width: 60%;
    max-width: 700px;
  }

  .checkpoint-screen {
    max-width: 300px;
  }
}

const startBtn = document.getElementById("start-btn");
const canvas = document.getElementById("canvas");
const startScreen = document.querySelector(".start-screen");
const checkpointScreen = document.querySelector(".checkpoint-screen");
const checkpointMessage = document.querySelector(".checkpoint-screen > p");
const ctx = canvas.getContext("2d");
canvas.width = innerWidth;
canvas.height = innerHeight;
const gravity = 0.5;
let isCheckpointCollisionDetectionActive = true;

const proportionalSize = (size) => {
  return innerHeight < 500 ? Math.ceil((size / 500) * innerHeight) : size;
}

class Player {
  constructor() {
    this.position = {
      x: proportionalSize(10),
      y: proportionalSize(400),
    };
    this.velocity = {
      x: 0,
      y: 0,
    };
    this.width = proportionalSize(40);
    this.height = proportionalSize(40);
  }
  draw() {
    ctx.fillStyle = "#99c9ff";
    ctx.fillRect(this.position.x, this.position.y, this.width, this.height);
  }
  
  update() {
    this.draw();
    this.position.x += this.velocity.x;
    this.position.y += this.velocity.y;

    if (this.position.y + this.height + this.velocity.y <= canvas.height) {
      if (this.position.y < 0) {
        this.position.y = 0;
        this.velocity.y = gravity;
      }
      this.velocity.y += gravity;
    } else {
      this.velocity.y = 0;
    }

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--fcc-editable-region--

  }

}

Step 31

--description--

--hints--

--seed--

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