Function prepareMatter

test/ExampleWorker.js:119–169

(options)

};

const prepareMatter = (options) => {
  const Matter = requireUncached(options.useDev ? '../build/matter.dev' : '../build/matter');

  if (Matter.Common._nextId !== 0) {
    throw 'Matter instance has already been used.';
  }

  Matter.Common.info = Matter.Common.warn = Matter.Common.log;

  if (options.stableSort) {
    if (Matter.Collision) {
      const MatterCollisionCollides = Matter.Collision.collides;
      Matter.Collision.collides = function(bodyA, bodyB, pairs) {
        const _bodyA = bodyA.id < bodyB.id ? bodyA : bodyB;
        const _bodyB = bodyA.id < bodyB.id ? bodyB : bodyA;
        return MatterCollisionCollides(_bodyA, _bodyB, pairs);
      };
    } else {
      const MatterSATCollides = Matter.SAT.collides;
      Matter.SAT.collides = function(bodyA, bodyB, previousCollision, pairActive) {
        const _bodyA = bodyA.id < bodyB.id ? bodyA : bodyB;
        const _bodyB = bodyA.id < bodyB.id ? bodyB : bodyA;
        return MatterSATCollides(_bodyA, _bodyB, previousCollision, pairActive);
      };
    }

    Matter.after('Detector.collisions', function() { this.sort(collisionCompareId); });
    Matter.after('Composite.allBodies', function() { sortById(this); });
    Matter.after('Composite.allConstraints', function() { sortById(this); });
    Matter.after('Composite.allComposites', function() { sortById(this); });

    Matter.before('Pairs.update', function(pairs) {
      pairs.list.sort((pairA, pairB) => collisionCompareId(pairA.collision, pairB.collision));
    });

    Matter.after('Pairs.update', function(pairs) {
      pairs.list.sort((pairA, pairB) => collisionCompareId(pairA.collision, pairB.collision));
    });
  }

  if (options.jitter) {
    Matter.after('Body.create', function() {
      Matter.Body.applyForce(this, this.position, { 
        x: Math.cos(this.id * this.id) * options.jitter * this.mass, 
        y: Math.sin(this.id * this.id) * options.jitter * this.mass
      });
    });
  }
  
  return Matter;
};

const prepareEnvironment = options => {
  const logs = [];