Method polyCollision

source/game/interfaces/StarWorld.cpp:132–151

}

bool World::polyCollision(PolyF const& poly, CollisionSet const& collisionSet) const {
  auto geometry = this->geometry();
  Vec2F polyCenter = poly.center();
  PolyF translatedPoly;
  bool collided = false;

  forEachCollisionBlock(RectI::integral(poly.boundBox()).padded(1), [&](CollisionBlock const& block) {
      if (collided || !isColliding(block.kind, collisionSet))
        return;

      Vec2F center = block.poly.center();
      Vec2F newCenter = geometry.nearestTo(polyCenter, center);
      translatedPoly = block.poly;
      translatedPoly.translate(newCenter - center);
      if (poly.intersects(translatedPoly))
        collided = true;
    });

  return collided;
}

}