overlay.cpp

#include "overlay.h"
#include <string>
#include <cstdarg>

//ESP stuff
void initD3D(HWND hWnd)
{
	d3d = Direct3DCreate9(D3D_SDK_VERSION);    // create the Direct3D interface

	D3DPRESENT_PARAMETERS d3dpp;    // create a struct to hold various device information

	ZeroMemory(&d3dpp, sizeof(d3dpp));    // clear out the struct for use
	d3dpp.Windowed = TRUE;    // program windowed, not fullscreen
	d3dpp.SwapEffect = D3DSWAPEFFECT_DISCARD;    // discard old frames
	d3dpp.hDeviceWindow = hWnd;    // set the window to be used by Direct3D
	d3dpp.BackBufferFormat = D3DFMT_A8R8G8B8;     // set the back buffer format to 32-bit
	d3dpp.BackBufferWidth = s_width;    // set the width of the buffer
	d3dpp.BackBufferHeight = s_height;    // set the height of the buffer

	d3dpp.EnableAutoDepthStencil = TRUE;
	d3dpp.AutoDepthStencilFormat = D3DFMT_D16;

	// create a device class using this information and the info from the d3dpp stuct
	d3d->CreateDevice(D3DADAPTER_DEFAULT, D3DDEVTYPE_HAL, hWnd, D3DCREATE_SOFTWARE_VERTEXPROCESSING, &d3dpp, &d3ddev);

	D3DXCreateFontA(d3ddev, 13, 0, FW_HEAVY, 1, 0, DEFAULT_CHARSET, OUT_DEFAULT_PRECIS, ANTIALIASED_QUALITY, DEFAULT_PITCH | FF_DONTCARE, "Arial", &pFont);
	D3DXCreateLine(d3ddev, &d3dLine);
}

void DrawString(int x, int y, DWORD color, LPD3DXFONT g_pFont, const char *fmt, ...)
{
	char buf[1024] = { 0 };
	va_list va_alist;
	RECT FontPos = { x, y, x + 120, y + 16 };
	va_start(va_alist, fmt);
	vsprintf_s(buf, fmt, va_alist);
	va_end(va_alist);
	g_pFont->DrawTextA(NULL, buf, -1, &FontPos, DT_NOCLIP, color);
}

void DrawLine(float x, float y, float xx, float yy, D3DCOLOR color)
{
	D3DXVECTOR2 dLine[2];

	d3dLine->SetWidth(1.f);

	dLine[0].x = x;
	dLine[0].y = y;

	dLine[1].x = xx;
	dLine[1].y = yy;

	d3dLine->Draw(dLine, 2, color);

}

void DrawBox(float x, float y, float width, float height, D3DCOLOR color)
{
	D3DXVECTOR2 points[5];
	points[0] = D3DXVECTOR2(x, y);
	points[1] = D3DXVECTOR2(x + width, y);
	points[2] = D3DXVECTOR2(x + width, y + height);
	points[3] = D3DXVECTOR2(x, y + height);
	points[4] = D3DXVECTOR2(x, y);
	d3dLine->SetWidth(1);
	d3dLine->Draw(points, 5, color);
}



LRESULT CALLBACK WindowProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
{
	switch (message)
	{
	case WM_PAINT:
		render();
		break;
	case WM_CREATE:
		DwmExtendFrameIntoClientArea(hWnd, &margin);
		break;

	case WM_DESTROY:
		PostQuitMessage(0);
		return 0;
	}

	return DefWindowProc(hWnd, message, wParam, lParam);
}