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//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions
// are met:
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in the
// documentation and/or other materials provided with the distribution.
// * Neither the name of NVIDIA CORPORATION nor the names of its
// contributors may be used to endorse or promote products derived
// from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
// PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
// EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
// PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
// OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// 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 "SampleCharacterClothJump.h"
using namespace physx;
static PxF32 gJumpGravity = -25.0f;
SampleCharacterClothJump::SampleCharacterClothJump() :
mV (0.0f),
mTime (0.0f),
mJump (false),
mFreefall (false)
{
}
void SampleCharacterClothJump::startJump(PxF32 v0)
{
if (mJump) return;
if (mFreefall) return;
mV = v0;
mJump = true;
}
void SampleCharacterClothJump::reset()
{
// reset jump state at most every half a second
// otherwise we might miss jump events
if (mTime < 0.5f)
return;
mFreefall = false;
mJump = false;
mV = 0.0f;
mTime = 0.0f;
}
void SampleCharacterClothJump::tick(PxF32 dtime)
{
mTime += dtime;
mV += gJumpGravity * dtime;
const PxReal vlimit = -25.0f;
if (mV < vlimit)
{
// limit velocity in freefall so that character does not fall at rocket speed.
mV = vlimit;
mFreefall = true;
mJump = false;
}
}
PxF32 SampleCharacterClothJump::getDisplacement(PxF32 dtime)
{
return mV * dtime;
}
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