feat(physics): wire physx sdk into build

engine/third_party/physx/include/foundation/PxTime.h

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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) 2008-2025 NVIDIA Corporation. All rights reserved.
+// Copyright (c) 2004-2008 AGEIA Technologies, Inc. All rights reserved.
+// Copyright (c) 2001-2004 NovodeX AG. All rights reserved.
+
+#ifndef PX_TIME_H
+#define PX_TIME_H
+
+#include "foundation/PxSimpleTypes.h"
+#include "foundation/PxFoundationConfig.h"
+
+#if PX_LINUX
+#include <time.h>
+#endif
+
+#if !PX_DOXYGEN
+namespace physx
+{
+#endif
+
+struct PxCounterFrequencyToTensOfNanos
+{
+	PxU64 mNumerator;
+	PxU64 mDenominator;
+	PxCounterFrequencyToTensOfNanos(PxU64 inNum, PxU64 inDenom) : mNumerator(inNum), mDenominator(inDenom)
+	{
+	}
+
+	// quite slow.
+	PxU64 toTensOfNanos(PxU64 inCounter) const
+	{
+		return (inCounter * mNumerator) / mDenominator;
+	}
+};
+
+class PX_FOUNDATION_API PxTime
+{
+  public:
+	typedef PxF64 Second;
+	static const PxU64 sNumTensOfNanoSecondsInASecond = 100000000;
+	// This is supposedly guaranteed to not change after system boot
+	// regardless of processors, speedstep, etc.
+	static const PxCounterFrequencyToTensOfNanos& getBootCounterFrequency();
+
+	static PxCounterFrequencyToTensOfNanos getCounterFrequency();
+
+	static PxU64 getCurrentCounterValue();
+
+	// SLOW!!
+	// Thar be a 64 bit divide in thar!
+	static PxU64 getCurrentTimeInTensOfNanoSeconds()
+	{
+		PxU64 ticks = getCurrentCounterValue();
+		return getBootCounterFrequency().toTensOfNanos(ticks);
+	}
+
+	PxTime();
+	Second getElapsedSeconds();
+	Second peekElapsedSeconds();
+	Second getLastTime() const;
+
+  private:
+#if PX_LINUX || PX_APPLE_FAMILY
+	Second mLastTime;
+#else
+	PxI64 mTickCount;
+#endif
+};
+#if !PX_DOXYGEN
+} // namespace physx
+#endif
+
+#endif
+