#include <windows.h>
#include "Direct3D.h"

const char g_szClassName[] = "Simple Window";

LRESULT CALLBACK WndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
{
	switch(msg)
		{
		case WM_CLOSE:
			DestroyWindow(hWnd);
		break;
		case WM_DESTROY:
			Cleanup();
			PostQuitMessage(0);
			return 0;
		case WM_PAINT:
			Render();
			ValidateRect(hWnd, NULL);
			return 0;
		default:
			return 0;
		} //switch(msg)
	return DefWindowProc(hWnd, msg, wParam, lParam);
} //WndProc()


//-----------------------------------------------------------------------------
// Name: WinMain()
// Desc: The application's entry point
//-----------------------------------------------------------------------------


int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance,
				   LPSTR lpCmdLine, int nCmdShow)
{
	WNDCLASSEX wc;
	MSG msg;

	wc.cbSize			=	sizeof(WNDCLASSEX);
	wc.style			=	0;
	wc.lpfnWndProc		=	WndProc;
	wc.cbClsExtra		=	0;
	wc.cbWndExtra		=	0;
	wc.hInstance		=	hInstance;
	wc.hIcon			=	LoadIcon(NULL, IDI_APPLICATION);
	wc.hCursor			=	LoadCursor(NULL, IDC_ARROW);
	wc.hbrBackground	=	(HBRUSH)(COLOR_WINDOW+1);
	wc.lpszMenuName		=	NULL;
	wc.lpszClassName	=	g_szClassName;
	wc.hIconSm			=	LoadIcon(NULL, IDI_APPLICATION);

 	if(!RegisterClassEx(&wc))
	{
		MessageBox(NULL, "Window registration failed!", "Error!",
			MB_ICONEXCLAMATION | MB_OK);
		return 0;
	}

	HWND hWnd = CreateWindowEx(WS_EX_CLIENTEDGE, g_szClassName,
		"Isometric Engine", WS_OVERLAPPEDWINDOW, CW_USEDEFAULT,
		CW_USEDEFAULT, 640, 480, NULL, NULL, hInstance, NULL);

	if(hWnd == NULL)
	{
		MessageBox(NULL, "Window creation failed!", "Error!",
			MB_ICONEXCLAMATION | MB_OK);
		return 0;
	}

	ShowWindow(hWnd, nCmdShow);
	UpdateWindow(hWnd);

	while(GetMessage(&msg, NULL, 0, 0) > 0)
	{
		TranslateMessage(&msg);
		DispatchMessage(&msg);
	}

	return msg.wParam;
} //WinMain()
}

#include <windows.h>
#include "Direct3D.h"

///////////////////////////////////////////////////////////
// InitD3D()
///////////////////////////////////////////////////////////
HRESULT InitD3D()
{
	if(NULL == (g_pD3D = Direct3DCreate9(D3D_SDK_VERSION)))
		return E_FAIL;

	LPDIRECT3DDEVICE9 pDevice = NULL;

	D3DPRESENT_PARAMETERS d3dpp;
	ZeroMemory(&d3dpp, sizeof(d3dpp));

	d3dpp.BackBufferWidth	=	640;
	d3dpp.BackBufferHeight	=	480;
	d3dpp.BackBufferFormat	=	D3DFMT_UNKNOWN;
	d3dpp.BackBufferCount	=	1;
	d3dpp.SwapEffect		=	D3DSWAPEFFECT_FLIP;
	d3dpp.Windowed			=	TRUE;
	
	if(FAILED(g_pD3D->CreateDevice(D3DADAPTER_DEFAULT, D3DDEVTYPE_HAL, hWnd,
		D3DCREATE_HARDWARE_VERTEXPROCESSING, &d3dpp, &g_pD3DDevice)))
		return E_FAIL;

	// Set device state.

	return S_OK;
}

///////////////////////////////////////////////////////////
// Render()
///////////////////////////////////////////////////////////
void Render(void)
{
    if( NULL == g_pD3DDevice )
        return;

    // Clear the backbuffer to a blue color
    g_pD3DDevice->Clear( 0, NULL, D3DCLEAR_TARGET, D3DCOLOR_XRGB(0,0,255), 1.0f, 0 );
    
    // Begin the scene
    if( SUCCEEDED( g_pD3DDevice->BeginScene() ) )
    {
        // Rendering of scene objects can happen here
    
        // End the scene
        g_pD3DDevice->EndScene();
    }

    // Present the backbuffer contents to the display
    g_pD3DDevice->Present( NULL, NULL, NULL, NULL );
}

///////////////////////////////////////////////////////////
// Cleanup()
///////////////////////////////////////////////////////////
void Cleanup(void)
{
    if( g_pD3DDevice != NULL) 
        g_pD3DDevice->Release();

    if( g_pD3D != NULL)
        g_pD3D->Release();
}

#pragma once

#include <D3d9.h>

LPDIRECT3D9 g_pD3D = NULL;
LPDIRECT3DDEVICE9 g_pD3DDevice = NULL;

HRESULT InitD3D();
void Cleanup(void);
void Render(void);