////  CharaterSweepResult.cpp//  libraries/physics/src////  Created by Andrew Meadows 2016.09.01//  Copyright 2016 High Fidelity, Inc.////  Distributed under the Apache License, Version 2.0.//  See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html// #include "CharacterSweepResult.h" #include <assert.h> #include "CharacterGhostObject.h" CharacterSweepResult::CharacterSweepResult(const CharacterGhostObject* character)    :   btCollisionWorld::ClosestConvexResultCallback(btVector3(0.0f, 0.0f, 0.0f), btVector3(0.0f, 0.0f, 0.0f)),        _character(character){    // set collision group and mask to match _character    assert(_character);    _character->getCollisionGroupAndMask(m_collisionFilterGroup, m_collisionFilterMask);} btScalar CharacterSweepResult::addSingleResult(btCollisionWorld::LocalConvexResult& convexResult, bool useWorldFrame) {    // skip objects that we shouldn't collide with    if (!convexResult.m_hitCollisionObject->hasContactResponse()) {        return btScalar(1.0);    }    if (convexResult.m_hitCollisionObject == _character) {        return btScalar(1.0);    }     return ClosestConvexResultCallback::addSingleResult(convexResult, useWorldFrame);} void CharacterSweepResult::resetHitHistory() {    m_hitCollisionObject = nullptr;    m_closestHitFraction = btScalar(1.0f);}