Class Camera2D

examples/TEST_Camera2D.cpp:66–270

namespace olc::utils
{
	class Camera2D
	{
	public:
		enum class Mode : uint8_t
		{
			Simple,			// No motion, just directly settable			
			EdgeMove,		// Moves as target crosses boundary			
			LazyFollow,		// Lazily follows the target			
			FixedScreens,	// Moves statically between "screens"
			SlideScreens,	// MOves statically between "screens" but with a fast transition
		};

	public:
		inline Camera2D() : m_pTarget(&m_vLocalTarget) {}

		// Construct a camera with a viewable area size, and an optional starting position
		inline Camera2D(const olc::vf2d& vViewSize, const olc::vf2d& vViewPos = { 0.0f, 0.0f }) : m_pTarget(&m_vLocalTarget)
		{
			m_vViewSize = vViewSize;
			m_vViewPos = vViewPos;
		}

		// Set the operational mode of this camera
		inline void SetMode(const Mode t)
		{
			m_nMode = t;
		}

		// Get the operational mode of this camera
		inline Mode GetMode() const
		{
			return m_nMode;
		}

		// Get the position of the target being tracked by this camera
		inline const olc::vf2d& GetTarget() const
		{
			return *m_pTarget;
		}

		// Get the position of the cameras focus point
		inline const olc::vf2d& GetPosition() const
		{
			return m_vPosition;
		}

		// Get the top left of teh cameras visible area in world space
		inline const olc::vf2d& GetViewPosition() const
		{
			return m_vViewPos;
		}

		// Get the camera's visible area
		inline const olc::vf2d& GetViewSize() const
		{
			return m_vViewSize;
		}