//Init all things related to direct X
void initD3D(HWND hWnd)
{
	d3d = Direct3DCreate9(D3D_SDK_VERSION);

	D3DPRESENT_PARAMETERS d3dpp;
	ZeroMemory(&d3dpp, sizeof(d3dpp));
	d3dpp.Windowed = true;
	d3dpp.SwapEffect = D3DSWAPEFFECT_DISCARD;
	d3dpp.hDeviceWindow = hWnd;

	d3d->CreateDevice(D3DADAPTER_DEFAULT, D3DDEVTYPE_HAL, hWnd, D3DCREATE_HARDWARE_VERTEXPROCESSING, &d3dpp, &d3dDev);
	d3dDev->SetFVF(D3DFVF_TLVERTEX);

	//Init the other direct X stuff
	initGraphics();
}

void initGraphics()
{
	//If culling is off things work as planned but why?
	d3dDev->SetRenderState(D3DRS_CULLMODE, D3DCULL_NONE);

	d3dDev->SetRenderState(D3DRS_DESTBLEND, D3DBLEND_INVSRCALPHA);
	d3dDev->SetRenderState(D3DRS_SRCBLENDALPHA, D3DRS_DESTBLENDALPHA);

	//Create a vertex buffer for 4 trinagles
	d3dDev->CreateVertexBuffer(4 * 3 * sizeof(TLVERTEX), 0, D3DFVF_TLVERTEX, D3DPOOL_MANAGED, &vertexBuffer, NULL);
}

void renderFrame()
{
	//Load the vertex
	TLVERTEX *verts;
	vertexBuffer->Lock(0, 0, (void **)&verts, NULL);
	
	//vert 0
	verts[0].color = D3DCOLOR_ARGB(255, 50, 255, 255);
	verts[0].x = 50;
	verts[0].y = 50;
	verts[0].z = 0.0f;
	verts[0].rhw = 1.0f;
	verts[0].u = 0.0f;
	verts[0].v = 0.0f;

	verts[1].color = D3DCOLOR_ARGB(255, 255, 50, 255);
	verts[1].x = 400;
	verts[1].y = 50;
	verts[1].z = 0.0f;
	verts[1].rhw = 1.0f;
	verts[1].u = 0.0f;
	verts[1].v = 0.0f;

	verts[2].color = D3DCOLOR_ARGB(255, 255, 255, 50);
	verts[2].x = 50;
	verts[2].y = 400;
	verts[2].z = 0.0f;
	verts[2].rhw = 1.0f;
	verts[2].u = 0.0f;
	verts[2].v = 0.0f;

	verts[3].color = D3DCOLOR_ARGB(255, 50, 255, 255);
	verts[3].x = 50;
	verts[3].y = 400;
	verts[3].z = 0.0f;
	verts[3].rhw = 1.0f;
	verts[3].u = 0.0f;
	verts[3].v = 0.0f;

	verts[4].color = D3DCOLOR_ARGB(255, 255, 50, 255);
	verts[4].x = 400;
	verts[4].y = 50;
	verts[4].z = 0.0f;
	verts[4].rhw = 1.0f;
	verts[4].u = 0.0f;
	verts[4].v = 0.0f;

	verts[5].color = D3DCOLOR_ARGB(255, 255, 255, 50);
	verts[5].x = 400;
	verts[5].y = 400;
	verts[5].z = 0.0f;
	verts[5].rhw = 1.0f;
	verts[5].u = 0.0f;
	verts[5].v = 0.0f;

	// [- SECOND QUAD -]
	//==================================================================================================

	//vert 0
	verts[6].color = D3DCOLOR_ARGB(255, 50, 255, 255);
	verts[6].x = 500;
	verts[6].y = 500;
	verts[6].z = 0.0f;
	verts[6].rhw = 1.0f;
	verts[6].u = 0.0f;
	verts[6].v = 0.0f;

	verts[7].color = D3DCOLOR_ARGB(255, 255, 50, 255);
	verts[7].x = 500;
	verts[7].y = 600;
	verts[7].z = 0.0f;
	verts[7].rhw = 1.0f;
	verts[7].u = 0.0f;
	verts[7].v = 0.0f;

	verts[8].color = D3DCOLOR_ARGB(255, 255, 255, 50);
	verts[8].x = 600;
	verts[8].y = 500;
	verts[8].z = 0.0f;
	verts[8].rhw = 1.0f;
	verts[8].u = 0.0f;
	verts[8].v = 0.0f;

	//----

	verts[9].color = D3DCOLOR_ARGB(255, 50, 255, 255);
	verts[9].x = 600;
	verts[9].y = 500;
	verts[9].z = 0.0f;
	verts[9].rhw = 1.0f;
	verts[9].u = 0.0f;
	verts[9].v = 0.0f;

	verts[10].color = D3DCOLOR_ARGB(255, 255, 50, 255);
	verts[10].x = 500;
	verts[10].y = 600;
	verts[10].z = 0.0f;
	verts[10].rhw = 1.0f;
	verts[10].u = 0.0f;
	verts[10].v = 0.0f;

	verts[11].color = D3DCOLOR_ARGB(255, 255, 255, 50);
	verts[11].x = 600;
	verts[11].y = 600;
	verts[11].z = 0.0f;
	verts[11].rhw = 1.0f;
	verts[11].u = 0.0f;
	verts[11].v = 0.0f;

	vertexBuffer->Unlock();

	//Clear, begin the scene, and draw
	d3dDev->Clear(0, NULL, D3DCLEAR_TARGET, D3DCOLOR_XRGB(40, 150, 255), 1.0f, 0);
	d3dDev->BeginScene();

	//Set the source of what to draw
	d3dDev->SetStreamSource(0, vertexBuffer, 0, sizeof(TLVERTEX));

	//Draw it, start at index 0 and go for 4 primatives
	d3dDev->DrawPrimitive(D3DPT_TRIANGLELIST, 0, 4);

	d3dDev->EndScene();
	d3dDev->Present(NULL, NULL, NULL, NULL);
}