软件简介

Matter.js 是一个基于 Web 的 2D 图形引擎。

特性：

• 物理属性(质量、面积、密度等)

• 任何凸多边形的刚体

• 稳定的叠加和 resting

• 碰撞 (broad-phase, mid-phase and narrow-phase)

• Restitution (elastic and inelastic collisions)

• Conservation of momentum

• Friction and resistance

• Constraints

• Gravity

• Composite bodies

• Sleeping and static bodies

• Events

• Rounded corners (chamfering)

• Views (translate, zoom)

• Collision queries (raycasting, region tests)

• Time scaling (slow-mo, speed-up)

• Canvas renderer (supports vectors and textures)

• WebGL renderer (requires pixi.js)

• MatterTools for creating, testing and debugging worlds

• World state serialisation (requires resurrect.js)

• Cross-browser (Chrome, Firefox, Safari, IE8+)

• Mobile-compatible (touch, responsive)

• An original JavaScript physics implementation (not a port)

示例代码：

// Matter.js module aliases
var Engine = Matter.Engine,
    World = Matter.World,
    Bodies = Matter.Bodies;

// create a Matter.js engine
var engine = Engine.create(document.body);

// create two boxes and a ground
var boxA = Bodies.rectangle(400, 200, 80, 80);
var boxB = Bodies.rectangle(450, 50, 80, 80);
var ground = Bodies.rectangle(400, 610, 810, 60, { isStatic: true });

// add all of the bodies to the world
World.add(engine.world, [boxA, boxB, ground]);

// run the engine
Engine.run(engine);