Initial commit

Torque/SDK/engine/math/mQuadPatch.cc

@@ -0,0 +1,59 @@
+//-----------------------------------------------------------------------------
+// Torque Game Engine
+// Copyright (C) GarageGames.com, Inc.
+//-----------------------------------------------------------------------------
+
+#include "math/mQuadPatch.h"
+
+
+//******************************************************************************
+// Quadratic spline patch
+//******************************************************************************
+QuadPatch::QuadPatch()
+{
+   setNumReqControlPoints(3);
+}
+
+//------------------------------------------------------------------------------
+//------------------------------------------------------------------------------
+void QuadPatch::calcABC( const Point3F *points )
+{
+   a = points[2] - points[1];
+   b = points[1] - points[0];
+   c = points[0];
+}
+
+
+//------------------------------------------------------------------------------
+//------------------------------------------------------------------------------
+void QuadPatch::submitControlPoints( SplCtrlPts &points )
+{
+   Parent::submitControlPoints( points );
+   calcABC( points.getPoint(0) );
+};
+
+
+//------------------------------------------------------------------------------
+//------------------------------------------------------------------------------
+void QuadPatch::setControlPoint( Point3F &point, int index )
+{
+   ( (SplCtrlPts*) getControlPoints() )->setPoint( point, index );
+   calcABC( getControlPoint(0) );
+}
+
+//------------------------------------------------------------------------------
+//------------------------------------------------------------------------------
+void QuadPatch::calc( F32 t, Point3F &result )
+{
+   F32 t2 = t*t;
+   result = a*t2 + b*t + c;
+}
+
+
+//------------------------------------------------------------------------------
+//------------------------------------------------------------------------------
+void QuadPatch::calc( Point3F *points, F32 t, Point3F &result )
+{
+   calcABC( points );
+   calc( t, result );
+}