Danbias/Code/OysterPhysics3D/Box.h

/////////////////////////////////////////////////////////////////////
// Created by Dan Andersson 2013
/////////////////////////////////////////////////////////////////////

#pragma once
#ifndef OYSTER_COLLISION_3D_BOX_H
#define OYSTER_COLLISION_3D_BOX_H

#include "OysterMath.h"
#include "ICollideable.h"

namespace Oyster
{
	namespace Collision3D
	{
		class Box : public ICollideable
		{
		public:
			union
			{
				struct{ ::Oyster::Math::Float4x4 rotation; ::Oyster::Math::Float4 center, boundingOffset; };
				struct
				{
					::Oyster::Math::Float4 xAxis;
					::Oyster::Math::Float4 yAxis;
					::Oyster::Math::Float4 zAxis;
				};
				char byte[sizeof(::Oyster::Math::Float4x4) + 2*sizeof(::Oyster::Math::Float4)];
			};

			Box( );
			Box( const ::Oyster::Math::Float4x4 &rotation, const ::Oyster::Math::Float3 &worldPos, const ::Oyster::Math::Float3 &size );
			Box( const ::Oyster::Math::Float4x4 &rotation, const ::Oyster::Math::Float4 &worldPos, const ::Oyster::Math::Float4 &size );
			virtual ~Box( );

			Box & operator = ( const Box &box );

			virtual ::Utility::DynamicMemory::UniquePointer<ICollideable> Clone( ) const;
			bool Intersects( const ICollideable &target ) const;
			bool Intersects( const ICollideable &target, ::Oyster::Math::Float4 &worldPointOfContact ) const;
			bool Contains( const ICollideable &target ) const;

			::Oyster::Math::Float TimeOfContact( const ICollideable &deuterStart, const ICollideable &deuterEnd ) const;
		};
	}

	namespace Math
	{
		/********************************************************************
		 * Normalized Linear Interpolation
		 ********************************************************************/
		::Oyster::Collision3D::Box & Nlerp( const ::Oyster::Collision3D::Box &start, const ::Oyster::Collision3D::Box &end, ::Oyster::Math::Float t, ::Oyster::Collision3D::Box &targetMem = ::Oyster::Collision3D::Box() );
	}
}

#endif