F:/My Projects/LSEngine/Modules/LSMathLib/Src/Rect/LSMRect2.h

#ifndef __LSM_RECT2_H__
#define __LSM_RECT2_H__

#include "../LSMMathLib.h"
#include "../Vector/LSMVector2.h"

namespace lsm {

        class CRect2 {
                // All is public.  This class has no secrets.
        public :
                // == Various constructors.
                LSE_INLINE LSE_CALLCTOR                         CRect2();
                LSE_INLINE LSE_CALLCTOR                         CRect2( LSREAL _fX0, LSREAL _fX1,
                        LSREAL _fY0, LSREAL _fY1 );


                // == Functions.
                LSE_INLINE LSREAL LSE_FCALL                     SizeX() const;

                LSE_INLINE LSREAL LSE_FCALL                     SizeY() const;

                LSE_INLINE CVector2 LSE_FCALL           Size() const;

                LSE_INLINE LSVOID LSE_FCALL                     Clear();

                LSE_INLINE LSVOID LSE_FCALL                     NegativeBox();
                
                LSE_INLINE LSVOID LSE_FCALL                     EnclosePoint( const CVector2 &_vPoint );
                
                LSE_INLINE LSVOID LSE_FCALL                     EncloseBox( const CRect2 &_rRect );


                // == Members.
                LSREAL                                                          x0, x1;

                LSREAL                                                          y0, y1;
        };


        // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
        // DEFINITIONS
        // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
        // == Various constructors.
        LSE_INLINE LSE_CALLCTOR CRect2::CRect2() {
        }
        LSE_INLINE LSE_CALLCTOR CRect2::CRect2( LSREAL _fX0, LSREAL _fX1,
                LSREAL _fY0, LSREAL _fY1 ) {
                x0 = _fX0, x1 = _fX1;
                y0 = _fY0, y1 = _fY1;
        }


        // == Functions.
        LSE_INLINE LSREAL LSE_FCALL CRect2::SizeX() const               { return x1 - x0; }

        LSE_INLINE LSREAL LSE_FCALL CRect2::SizeY() const               { return y1 - y0; }

        LSE_INLINE CVector2 LSE_FCALL CRect2::Size() const              { return CVector2( SizeX(), SizeY() ); }

        LSE_INLINE LSVOID LSE_FCALL CRect2::Clear() {
                x0 = x1 = y0 = y1 = LSM_ZERO;
        }

        LSE_INLINE LSVOID LSE_FCALL CRect2::NegativeBox() {
                x0 = y0 = LSM_INFINITY;
                x1 = y1 = -LSM_INFINITY;
        }

        LSE_INLINE LSVOID LSE_FCALL CRect2::EnclosePoint( const CVector2 &_vPoint ) {
                x0 = CMathLib::Min( x0, _vPoint.x );
                x1 = CMathLib::Max( x1, _vPoint.x );
                y0 = CMathLib::Min( y0, _vPoint.y );
                y1 = CMathLib::Max( y1, _vPoint.y );
        }

        LSE_INLINE LSVOID LSE_FCALL CRect2::EncloseBox( const CRect2 &_rRect ) {
                x0 = CMathLib::Min( x0, _rRect.x0 );
                x1 = CMathLib::Max( x1, _rRect.x1 );
                y0 = CMathLib::Min( y0, _rRect.y0 );
                y1 = CMathLib::Max( y1, _rRect.y1 );
        }

}       // namespace lsm

#endif  // __LSM_RECT2_H__