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// This code contains NVIDIA Confidential Information and is disclosed to you
// under a form of NVIDIA software license agreement provided separately to you.
//
// Notice
// NVIDIA Corporation and its licensors retain all intellectual property and
// proprietary rights in and to this software and related documentation and
// any modifications thereto. Any use, reproduction, disclosure, or
// distribution of this software and related documentation without an express
// license agreement from NVIDIA Corporation is strictly prohibited.
//
// ALL NVIDIA DESIGN SPECIFICATIONS, CODE ARE PROVIDED "AS IS.". NVIDIA MAKES
// NO WARRANTIES, EXPRESSED, IMPLIED, STATUTORY, OR OTHERWISE WITH RESPECT TO
// THE MATERIALS, AND EXPRESSLY DISCLAIMS ALL IMPLIED WARRANTIES OF NONINFRINGEMENT,
// MERCHANTABILITY, AND FITNESS FOR A PARTICULAR PURPOSE.
//
// Information and code furnished is believed to be accurate and reliable.
// However, NVIDIA Corporation assumes no responsibility for the consequences of use of such
// information or for any infringement of patents or other rights of third parties that may
// result from its use. No license is granted by implication or otherwise under any patent
// or patent rights of NVIDIA Corporation. Details are subject to change without notice.
// This code supersedes and replaces all information previously supplied.
// NVIDIA Corporation products are not authorized for use as critical
// components in life support devices or systems without express written approval of
// NVIDIA Corporation.
//
// Copyright (c) 2008-2018 NVIDIA Corporation. All rights reserved.
// Copyright (c) 2004-2008 AGEIA Technologies, Inc. All rights reserved.
// Copyright (c) 2001-2004 NovodeX AG. All rights reserved.
#include "SampleVehicle_GameLogic.h"
void SampleVehicleWayPoints::getNextWayPointsAndLineDirs(PxU32& numPoints, PxVec3& v0, PxVec3& v1, PxVec3& v2, PxVec3& w0, PxVec3& w1, PxVec3& w2) const
{
numPoints=0;
if((mProgress+1) < mNumWayPoints)
{
v0=mWayPoints[mProgress+1].p;
w0=mWayPoints[mProgress+1].q.getBasisVector0();
numPoints++;
if((mProgress+2) < mNumWayPoints)
{
v1=mWayPoints[mProgress+2].p;
w1=mWayPoints[mProgress+2].q.getBasisVector0();
numPoints++;
if((mProgress+3) < mNumWayPoints)
{
v2=mWayPoints[mProgress+3].p;
w2=mWayPoints[mProgress+3].q.getBasisVector0();
numPoints++;
}
}
}
}
#define LINEWIDTH 8
#define LINEDISTANCE2 3*3
void SampleVehicleWayPoints::update(const PxTransform& playerTransform, const PxF32 timestep)
{
//Increment the elapsed time
mTimeElapsed+=timestep;
//Work out the point on the crossing line of the next way-point that is closest to the player.
const PxTransform& nextWayPoint=mWayPoints[mProgress+1];
const PxVec3 v=nextWayPoint.p;
const PxVec3 w=nextWayPoint.q.getBasisVector0();
const PxVec3 p=playerTransform.p;
const PxVec3 pv=p-v;
const PxF32 t=pv.dot(w);
//Test if the player's position is inside the width of the line crossing the next way-point.
if(PxAbs(t) < LINEWIDTH)
{
//Now test if the shortest distance to the next crossing line is smaller than a threshold.
const PxVec3 linePos=v+w*t;
const PxVec3 diff=p-linePos;
const PxF32 dist2=diff.magnitudeSquared();
if(dist2<LINEDISTANCE2)
{
mProgress++;
}
}
if(mProgress == mNumWayPoints-1)
{
mMinTimeElapsed=PxMin(mTimeElapsed, mMinTimeElapsed);
mTimeElapsed=0;
mProgress=0;
}
}
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