default_broadphase_callbacks.cpp

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#include "coal/broadphase/default_broadphase_callbacks.h"
#include <algorithm>
 
namespace coal {
 
bool defaultCollisionFunction(CollisionObject* o1, CollisionObject* o2,
                              void* data) {
  assert(data != nullptr);
  auto* collision_data = static_cast<CollisionData*>(data);
  const CollisionRequest& request = collision_data->request;
  CollisionResult& result = collision_data->result;
 
  if (collision_data->done) return true;
 
  collide(o1, o2, request, result);
 
  if (result.isCollision() &&
      result.numContacts() >= request.num_max_contacts) {
    collision_data->done = true;
  }
 
  return collision_data->done;
}
 
bool CollisionCallBackDefault::collide(CollisionObject* o1,
                                       CollisionObject* o2) {
  return defaultCollisionFunction(o1, o2, &data);
}
 
bool defaultDistanceFunction(CollisionObject* o1, CollisionObject* o2,
                             void* data, CoalScalar& dist) {
  assert(data != nullptr);
  auto* cdata = static_cast<DistanceData*>(data);
  const DistanceRequest& request = cdata->request;
  DistanceResult& result = cdata->result;
 
  if (cdata->done) {
    dist = result.min_distance;
    return true;
  }
 
  distance(o1, o2, request, result);
 
  dist = result.min_distance;
 
  if (dist <= 0) return true;  // in collision or in touch
 
  return cdata->done;
}
 
bool DistanceCallBackDefault::distance(CollisionObject* o1, CollisionObject* o2,
                                       CoalScalar& dist) {
  return defaultDistanceFunction(o1, o2, &data, dist);
}
 
CollisionCallBackCollect::CollisionCallBackCollect(const size_t max_size)
    : max_size(max_size) {
  collision_pairs.resize(max_size);
}
 
bool CollisionCallBackCollect::collide(CollisionObject* o1,
                                       CollisionObject* o2) {
  collision_pairs.push_back(std::make_pair(o1, o2));
  return false;
}
 
size_t CollisionCallBackCollect::numCollisionPairs() const {
  return collision_pairs.size();
}
 
const std::vector<CollisionCallBackCollect::CollisionPair>&
CollisionCallBackCollect::getCollisionPairs() const {
  return collision_pairs;
}
 
void CollisionCallBackCollect::init() { collision_pairs.clear(); }
 
bool CollisionCallBackCollect::exist(CollisionObject* o1,
                                     CollisionObject* o2) const {
  return exist(std::make_pair(o1, o2));
}
 
bool CollisionCallBackCollect::exist(const CollisionPair& pair) const {
  return std::find(collision_pairs.begin(), collision_pairs.end(), pair) !=
         collision_pairs.end();
}
 
}  // namespace coal