Universe.h


// ===========================================================================
/// <summary>
/// Universe.h
/// DirectXIntroduction
/// created by Mehrdad Soleimanimajd on 05.09.2019
/// </summary>
/// <created>ʆϒʅ, 05.09.2019</created>
/// <changed>ʆϒʅ, 04.07.2023</changed>
// ===========================================================================

#ifndef SPACE_H
#define SPACE_H


#include <d3d10_1.h>
#include <DirectXMath.h>

#include "Camera.h"
#include "Light.h"


// matrix buffer (matching the global cbuffer type introduced in vertex shader)
struct MatrixBuffer
{
    DirectX::XMMATRIX world;
    DirectX::XMMATRIX view;
    DirectX::XMMATRIX projection;
};


// light buffer (matching the global cbuffer type introduced in pixel shader)
struct LightBuffer
{
    DirectX::XMFLOAT4 diffuseColour;
    DirectX::XMFLOAT3 diffuseDirection;
    float padding; // extra, so the structure size match a multiple of 16 (function 'CreateBuffer' requirements)
};


// objects of game space (world, camera, views, lights) and their effects on polygons
class Universe
{
private:
    ID3D10Device1* device;

    Camera* camera; // pointer to the camera application
    DirectX::XMMATRIX matrixProjection; // projection matrix (translation of 3D scene into the 2D viewport space)
    DirectX::XMMATRIX matrixWorld; // world matrix (to convert into 3D scenes' vertices)
    float matrixWorldRotation; // world matrix rotation factor
    DirectX::XMMATRIX matrixOrthographic; // orthographic matrix (2D rendering)
    const float screenDepth {1000.0f}; // depth settings
    const float screenNear {0.1f}; // depth settings
    ID3D10Buffer* matrixBuffer; // constant matrix buffer (to interface with shader)

    DiffuseLight* lightDiffuse; // pointer to the diffuse light application
    ID3D10Buffer* lightBufferDiffuse; // constant light buffer (to interface with shader)

    bool initialized; // true if initialization was successful
public:
    Universe (ID3D10Device1*);
    const bool& isInitialized (void); // get the initialized state
    void renderResources (void); // map matrix buffer and update
    Camera* getCamera (void); // get the pointer to camera application
    DiffuseLight* getDiffuseLight (void); // get the pointer to diffuse light application
    void update (void); // update the game universe
    void release (void); // release the resource
};


#endif // !SPACE_H