Engine directory for ticket #1

Engine/source/math/mTransform.h

@@ -0,0 +1,97 @@
+//-----------------------------------------------------------------------------
+// Copyright (c) 2012 GarageGames, LLC
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to
+// deal in the Software without restriction, including without limitation the
+// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+// sell copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+// IN THE SOFTWARE.
+//-----------------------------------------------------------------------------
+
+#ifndef _MTRANSFORM_H_
+#define _MTRANSFORM_H_
+
+#ifndef _MPOINT3_H_
+   #include "math/mPoint3.h"
+#endif
+#ifndef _MANGAXIS_H_
+   #include "math/mAngAxis.h"
+#endif
+#ifndef _MMATRIX_H_
+   #include "math/mMatrix.h"
+#endif
+
+/// A transform expressed as a combination of a position vector and an angular
+/// orientation.
+class TransformF
+{
+   public:
+   
+      Point3F mPosition;
+      AngAxisF mOrientation;
+      bool mHasRotation;
+
+      static const TransformF Identity;
+
+      TransformF()
+         :  mPosition( Point3F::Zero ),
+            mOrientation( Point3F( 0, 0, 1 ), 0 ),
+            mHasRotation(true)
+      {
+      }
+
+      TransformF( const Point3F& position, const AngAxisF& orientation )
+      {
+         set( position, orientation );
+         mHasRotation = true;
+      }
+
+      TransformF( const MatrixF& mat )
+      {
+         set( mat );
+         mHasRotation = true;
+      }
+
+      bool hasRotation() const { return mHasRotation; }
+
+      void set( const Point3F& position, const AngAxisF& orientation )
+      {
+         mPosition = position;
+         mOrientation = orientation;
+      }
+
+      void set( const MatrixF& mat )
+      {
+         mPosition = mat.getPosition();
+         mOrientation.set( mat );
+      }
+
+      /// Return the position vector of the transform.
+      const Point3F& getPosition() const { return mPosition; }
+      
+      /// REturn the orientation of the transform.
+      const AngAxisF& getOrientation() const { return mOrientation; }
+
+      MatrixF getMatrix() const
+      {
+         MatrixF mat;
+         mOrientation.setMatrix( &mat );
+         mat.setPosition( mPosition );
+
+         return mat;
+      }
+};
+
+#endif // !_MTRANSFORM_H_