initial commit, 4.5 stable

thirdparty/jolt_physics/Jolt/Math/DynMatrix.h

@@ -0,0 +1,31 @@
+// Jolt Physics Library (https://github.com/jrouwe/JoltPhysics)
+// SPDX-FileCopyrightText: 2022 Jorrit Rouwe
+// SPDX-License-Identifier: MIT
+
+#pragma once
+
+JPH_NAMESPACE_BEGIN
+
+/// Dynamic resizable matrix class
+class [[nodiscard]] DynMatrix
+{
+public:
+	/// Constructor
+					DynMatrix(const DynMatrix &) = default;
+					DynMatrix(uint inRows, uint inCols)			: mRows(inRows), mCols(inCols) { mElements.resize(inRows * inCols); }
+
+	/// Access an element
+	float			operator () (uint inRow, uint inCol) const	{ JPH_ASSERT(inRow < mRows && inCol < mCols); return mElements[inRow * mCols + inCol]; }
+	float &			operator () (uint inRow, uint inCol)		{ JPH_ASSERT(inRow < mRows && inCol < mCols); return mElements[inRow * mCols + inCol]; }
+
+	/// Get dimensions
+	uint			GetCols() const								{ return mCols; }
+	uint			GetRows() const								{ return mRows; }
+
+private:
+	uint			mRows;
+	uint			mCols;
+	Array<float>	mElements;
+};
+
+JPH_NAMESPACE_END