moved files around

Bullet/NarrowPhaseCollision/BU_AlgebraicPolynomialSolver.h

@@ -0,0 +1,45 @@
+/*
+Bullet Continuous Collision Detection and Physics Library
+Copyright (c) 2003-2006 Erwin Coumans  http://continuousphysics.com/Bullet/
+
+This software is provided 'as-is', without any express or implied warranty.
+In no event will the authors be held liable for any damages arising from the use of this software.
+Permission is granted to anyone to use this software for any purpose, 
+including commercial applications, and to alter it and redistribute it freely, 
+subject to the following restrictions:
+
+1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required.
+2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software.
+3. This notice may not be removed or altered from any source distribution.
+*/
+
+
+#ifndef BU_ALGEBRAIC_POLYNOMIAL_SOLVER_H
+#define BU_ALGEBRAIC_POLYNOMIAL_SOLVER_H
+
+#include "BU_PolynomialSolverInterface.h"
+
+/// BU_AlgebraicPolynomialSolver implements polynomial root finding by analytically solving algebraic equations.
+/// Polynomials up to 4rd degree are supported, Cardano's formula is used for 3rd degree
+class BU_AlgebraicPolynomialSolver : public BUM_PolynomialSolverInterface
+{
+public:
+	BU_AlgebraicPolynomialSolver() {};
+
+	int Solve2Quadratic(SimdScalar p, SimdScalar q);
+	int Solve2QuadraticFull(SimdScalar a,SimdScalar b, SimdScalar c);
+	int	Solve3Cubic(SimdScalar lead, SimdScalar a, SimdScalar b, SimdScalar c);
+	int Solve4Quartic(SimdScalar lead, SimdScalar a, SimdScalar b, SimdScalar c, SimdScalar d);
+	
+
+	SimdScalar GetRoot(int i) const 
+	{
+		return m_roots[i];
+	}
+
+private:
+	SimdScalar	m_roots[4];
+
+};
+
+#endif //BU_ALGEBRAIC_POLYNOMIAL_SOLVER_H