Function runRayCast

example/DynamicTreeTest.ts:86–123

()

}

function runRayCast() {
  rayCastResult.actor = null;
  rayCastResult.output = null;

  rayCastResult.input = {
    p1: Vec2.clone(rayCastInput.p1),
    p2: Vec2.clone(rayCastInput.p2),
    maxFraction: rayCastInput.maxFraction,
  };

  // Ray cast against the dynamic tree.
  tree.rayCast(rayCastResult.input, rayCastCallback);

  // Brute force ray cast.
  let bruteActor: Actor | null = null;
  let bruteOutput: RayCastOutput | null = null;

  for (let i = 0; i < actors.length; ++i) {
    const actor = actors[i];
    if (actor.proxyId == null) {
      continue;
    }

    const output = {} as RayCastOutput;
    const hit = actor.aabb.rayCast(output, rayCastResult.input);
    if (hit) {
      bruteActor = actor;
      bruteOutput = output;
      rayCastResult.input.maxFraction = output.fraction;
    }
  }

  if (bruteActor != null) {
    // console.assert(bruteOutput?.fraction == rayCastOutput.fraction);
  }

  return rayCastResult;
}

testbed.step = function () {
  for (let i = 0; i < actors.length; ++i) {