Graphics.h

#pragma once
#include "ErrorLogger.h"
#include <d3d11.h>
#include <d3dx11.h>
#include <d3dx10.h>
#include <d3dcompiler.h>
#pragma comment (lib, "d3d11.lib")
#pragma comment (lib, "d3dx11.lib")
#pragma comment (lib, "d3dx10.lib")
#pragma comment (lib, "DirectXTK.lib")
#pragma comment (lib, "DXGI.lib")
#pragma comment (lib, "D3DCompiler.lib")
#include "Shader.h"
#include "ConstantBuffer.h"
#include "ConstantBufferTypes.h"
#include <SpriteBatch.h>
#include <SpriteFont.h>
#include "Timer.h"
#include "ImGuiWindow.h"
#include "Camera.h"
#include "Entity.h"
#include "QuadTree.h"
#include <cstdlib>
#include "ini.h"

class Graphics
{
public:
	bool Initialize(HWND hWnd, int width, int height);
	bool InitD3D11(HWND hWnd);							// sets up and initializes Direct3D
	bool InitImGui(HWND hWnd);							// initialize imgui window
	bool InitPipeline(void);							// loads and prepares pipeline
	bool InitGraphicsD3D11(void);						// creates the shape to render
	void CleanD3D(void);								// closes Direct3D and releases memory
	void RenderFrame(void);								// renders a single frame

	Camera& GetCamera();

	XMFLOAT2 GetOrbitalVelocity(const Entity* p1, const Entity* p2);
	void SpiralGalaxy(int N);
	void GalaxyCollision(int N);
  
private:
	mINI::INIFile* _INIFile;
	mINI::INIStructure _INIData;				// structure hold data for config.ini

	int _wWidth;
	int _wHeight;

	IDXGISwapChain* _swapchain;					// pointer to swap chain interface
	ID3D11Device* _dev;							// pointer to Direct3D device interface
	ID3D11DeviceContext* _devcon;				// pointer to Direct3D device context
	ID3D11RenderTargetView* _backbuffer;		// pointer to back buffer
	VertexShader _pVS;							// vertex shader (run once for each vertex rendered)
	PixelShader _pPS;							// pixel shader (run for each pixel drawn)
	ID3D11RasterizerState* _rasterizerState;
	 
	ID3D11Texture2D* _depthStencilBuffer;
	ID3D11DepthStencilView* _depthStencilView;
	ID3D11DepthStencilState* _depthStencilState;

	ConstantBuffer<CB_VS_vertexshader> _cb_vs_vertexshader;
	ConstantBuffer<CB_PS_pixelshader> _cb_ps_pixelshader;

	ID3D11BlendState* _blendState;

	std::unique_ptr<DirectX::SpriteBatch> _spriteBatch;
	std::unique_ptr<DirectX::SpriteFont> _spriteFont;

	ID3D11SamplerState* _samplerState;
	ID3D11ShaderResourceView* _imageShaderResourceView;

	Timer _fpsTimer;
	int fpsCount = 0;
	std::string fpsString = "FPS: 0";

	ImGuiWindow* _imgui;

	Camera _camera;
	XMFLOAT3 _cameraPos;
	bool _cameraTracking = true;

public:	
	bool _pause = true;
	bool _enableColors = true;

	QuadTreeNode* _qtRoot;
	std::vector<Entity*> _particles;
};