game-engine

Use the Phaser framework with Arcade Physics: set up a game loop with preload, create, and update states, enable gravity, add keyboard controls for movement and jumping, and load levels from JSON data. The included platformer template walks through every step.

Three.js offers a high-level WebGL API with a large ecosystem, Babylon.js includes built-in physics and a math library, and A-Frame provides declarative HTML-based scenes ideal for VR. Choose based on whether you need control, built-in features, or rapid prototyping.

2D collision detection typically uses AABB overlap tests, circle distance checks, or the Separating Axis Theorem for rotated shapes. Physics engines resolve collisions by computing penetration vectors and applying impulse-based responses along the collision normal.

Movement tied directly to frame updates varies with frame rate. Multiply velocity by deltaTime (elapsed seconds since the last frame) so position updates are frame-rate independent and consistent across devices.

Yes, web games support touch events, virtual joysticks, the Device Orientation API for tilt controls, and the Gamepad API for controllers. Prevent default touch behavior and handle touch events separately from mouse events for reliable input.

Browsers block audio playback until the user interacts with the page. Trigger sound playback from a click or keypress handler, and provide multiple audio formats such as OGG, MP3, and M4A for cross-browser compatibility.