Camera.h

//// THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF
//// ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO
//// THE IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A
//// PARTICULAR PURPOSE.
////
//// Copyright (c) Microsoft Corporation. All rights reserved

#pragma once

// Camera:
// This class defines the position, orientation and viewing frustum of a camera looking into
// a 3D world.  It will generate both the View matrix and Projection matrix.

ref class Camera
{
internal:
    Camera();

    void SetViewParams(_In_ DirectX::XMFLOAT3 eye, _In_ DirectX::XMFLOAT3 lookAt, _In_ DirectX::XMFLOAT3 up);
    void SetProjParams(_In_ float fieldOfView, _In_ float aspectRatio, _In_ float nearPlane, _In_ float farPlane);

    void LookDirection (_In_ DirectX::XMFLOAT3 lookDirection);
    void Eye (_In_ DirectX::XMFLOAT3 position);

    DirectX::XMMATRIX View();
    DirectX::XMMATRIX Projection();
    DirectX::XMMATRIX World();
    DirectX::XMFLOAT3 Eye();
    DirectX::XMFLOAT3 LookAt();
    DirectX::XMFLOAT3 Up();
    float NearClipPlane();
    float FarClipPlane();
    float Pitch();
    float Yaw();

protected private:
    DirectX::XMFLOAT4X4 m_viewMatrix;
    DirectX::XMFLOAT4X4 m_projectionMatrix;

    DirectX::XMFLOAT4X4 m_inverseView;

    DirectX::XMFLOAT3 m_eye;
    DirectX::XMFLOAT3 m_lookAt;
    DirectX::XMFLOAT3 m_up;
    float             m_cameraYawAngle;
    float             m_cameraPitchAngle;

    float             m_fieldOfView;
    float             m_aspectRatio;
    float             m_nearPlane;
    float             m_farPlane;
};