Method queryCollisions

source/game/StarMovementController.cpp:1069–1113

}

void MovementController::queryCollisions(RectF const& region) {
  while (!m_workingCollisions.empty()) {
    m_collisionBuffers.append(m_workingCollisions.takeLast().poly);
  }

  auto newCollisionPoly = [this]() -> CollisionPoly& {
    if (!m_collisionBuffers.empty())
      return m_workingCollisions.emplaceAppend(CollisionPoly{
          m_collisionBuffers.takeLast(), {}, {}, {}, {}, {}
        });
    else
      return m_workingCollisions.emplaceAppend(CollisionPoly{});
  };

  auto geometry = world()->geometry();

  world()->forEachCollisionBlock(RectI::integral(region.padded(1)), [&](CollisionBlock const& block) {
      if (block.kind != CollisionKind::None && !block.poly.isNull()) {
        RectF polyBounds = block.polyBounds;
        Vec2F basePosition = block.poly.vertex(0);
        Vec2F nearTranslation = geometry.nearestTo(region.min(), basePosition) - basePosition;
        polyBounds.translate(nearTranslation);

        if (region.intersects(polyBounds)) {
          CollisionPoly& collisionPoly = newCollisionPoly();
          collisionPoly.poly = block.poly;
          collisionPoly.poly.translate(nearTranslation);
          collisionPoly.polyBounds = polyBounds;
          collisionPoly.sortPosition = centerOfTile(block.space);
          collisionPoly.movingCollisionId = {};
          collisionPoly.collisionKind = block.kind;
        }
      }
    });

  forEachMovingCollision(region, [&](MovingCollisionId id, PhysicsMovingCollision mc, PolyF poly, RectF bounds) {
    CollisionPoly& collisionPoly = newCollisionPoly();
    collisionPoly.poly = std::move(poly);
    collisionPoly.polyBounds = bounds;
    collisionPoly.sortPosition = collisionPoly.poly.center();
    collisionPoly.movingCollisionId = id;
    collisionPoly.collisionKind = mc.collisionKind;
    return true;
  });
}

float MovementController::gravity() {
  float buoyancy = *m_parameters.liquidBuoyancy * m_liquidPercentage + *m_parameters.airBuoyancy * (1.0f - liquidPercentage());