overte-HifiExperiments/libraries/physics/src/CharacterGhostShape.cpp
2017-05-05 09:35:49 -07:00

31 lines
1 KiB
C++

//
// CharacterGhostShape.cpp
// libraries/physics/src
//
// Created by Andrew Meadows 2016.09.14
// 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 "CharacterGhostShape.h"
#include <assert.h>
CharacterGhostShape::CharacterGhostShape(const btConvexHullShape* shape) :
btConvexHullShape(reinterpret_cast<const btScalar*>(shape->getUnscaledPoints()), shape->getNumPoints(), sizeof(btVector3)) {
assert(shape);
assert(shape->getUnscaledPoints());
assert(shape->getNumPoints() > 0);
setMargin(shape->getMargin());
}
void CharacterGhostShape::getAabb (const btTransform& t, btVector3& aabbMin, btVector3& aabbMax) const {
btConvexHullShape::getAabb(t, aabbMin, aabbMax);
// double the size of the Aabb by expanding both corners by half the extent
btVector3 expansion = 0.5f * (aabbMax - aabbMin);
aabbMin -= expansion;
aabbMax += expansion;
}