Tiny Physics - a tiny(ish) Javascript physics engine

Introduction

Tiny physics is a javascript physics engine. It's small but not even the smallest or anything.

Usage

Creating a world

Physics.create({
    objects: (function () {
        var objects = [];
        for (let i = 0; i < 50; i++) {
            var x = 50 + Math.random() * 800
            var y = 50 + Math.random() * 600
            var radius = 50// + Math.random() * 10;
            objects.push({
                type: "polygon",
                points: Polygon.createPolygon(x, y, radius, ~~(Math.random() * 5) + 3),
                x,
                y,
                vx: 0,
                vy: 0,
                ax: 0,
                ay: 0,
                mass: 1,
                radius,
                color: "#ff000055",
                lineWidth: 1
            });
        }
        return objects;
    })(),
    forces: [
        Physics.forces.gravity(50, 2000, 980),
        Physics.forces.repulsion(1, 50, 98),
        Physics.forces.overlapResolver()
    ],
    viewport: {
        width: 1920,
        height: 1080,
        x: 0,
        y: 0
    },
    size: {
        width: 1920,
        height: 1080
    },
});
Physics.resume();

installation

npm install tiny-physics

API

Physics.create(options)

Creates a new physics world. Options are:

• objects - an array of objects to be added to the world
• forces - an array of forces to be applied to the world
• viewport - an object describing the viewport
• size - an object describing the size of the world

Physics.resume()

Resumes the world

Physics.pause()

Pauses the world

Physics.add(object)

Adds an object to the world

Physics.remove(object)

Removes an object from the world

Physics.addForce(force)

Adds a force to the world

Physics.removeForce(force)

Removes a force from the world

Physics.forces

A collection of predefined forces. See [forces.js](

Physics.objects

A collection of predefined objects. See [objects.js](

Physics.objects.createPolygon(x, y, radius, sides)

Creates a polygon with the specified number of sides

License

MIT

Contributing

Pull requests are welcome. For major changes, please open an issue first to discuss what you would like to change.

Please make sure to update tests as appropriate.

Contact

• [Github](