Let's add a camera that follows the player horizontally, revealing more of the level as they move.

The Camera Box

Instead of panning the camera directly based on player position, we use a "camera box" — an invisible rectangle around the player:

this.cameraBox = {   position: { x: this.position.x, y: this.position.y },   width: 200,   height: 80 }

Panning Logic

Check if the camera box hits the screen edges:

• Right edge — When camera box right side exceeds canvas width, translate everything left

• Left edge — When camera box left side goes below zero, translate everything right

if (cameraBox.position.x + cameraBox.width >= canvas.width) {   camera.position.x -= player.velocity.x }

Applying The Camera

Before drawing your scene, translate by the camera position:

c.translate(camera.position.x, camera.position.y)

The camera box gives the player some room to move before the camera starts panning, creating a smoother gameplay feel.