void DXinput::Update(Camera* cam, Grid* pGrid)
{
	x+= .05;
	g_lpDIDevice->GetDeviceState(sizeof(buffer),(LPVOID)&buffer);
	if(device == key)
	{
		if (KEYDOWN(buffer, DIK_W))
		{
			D3DXVECTOR3 camDir; 

			camDir = cam->camLook - cam->camPos; 
			D3DXVec3Normalize(&camDir, &camDir); 

			cam->camPos = cam->camPos + camDir; 
			cam->camLook = cam->camLook + camDir; 

			// adjust the y value for the change in terrain 
			pGrid->GetGridPoint(&cam->camPos, cam->camPos.x, cam->camPos.z); 
			cam->camPos.y += 30.0f; 

			MovePoint(cam);

		}
		if (KEYDOWN(buffer, DIK_S))
		{
			D3DXVECTOR3 camDir; 

			camDir = cam->camLook - cam->camPos; 
			D3DXVec3Normalize(&camDir, &camDir); 

			cam->camPos = cam->camPos - camDir; 
			cam->camLook = cam->camLook - camDir; 

			// adjust the y value for the change in terrain 
			pGrid->GetGridPoint(&cam->camPos, cam->camPos.x, cam->camPos.z); 
			cam->camPos.y += 30.0f; 

			MovePoint(cam);

		}
		if (KEYDOWN(buffer, DIK_A))
		{
			D3DXMATRIX ry; 
			D3DXVECTOR4 result; 
			D3DXVECTOR3 camDir; 

			camDir = cam->camLook - cam->camPos; 
			D3DXMatrixRotationY(&ry, D3DXToRadian(-1)); 

			D3DXVec3Transform(&result, &camDir, &ry); 
			cam->camLook = cam->camPos + D3DXVECTOR3(result.x, result.y, result.z); 

			// adjust the y value for the change in terrain 
			pGrid->GetGridPoint(&cam->camPos, cam->camPos.x, cam->camPos.z); 
			cam->camPos.y += 30.0f; 

			MovePoint(cam);
		}
		if (KEYDOWN(buffer, DIK_D))
		{
			D3DXMATRIX ry; 
			D3DXVECTOR4 result; 
			D3DXVECTOR3 camDir; 

			camDir = cam->camLook - cam->camPos; 
			D3DXMatrixRotationY(&ry, D3DXToRadian(1)); 

			D3DXVec3Transform(&result, &camDir, &ry); 
			cam->camLook = cam->camPos + D3DXVECTOR3(result.x, result.y, result.z); 

			// adjust the y value for the change in terrain 
			pGrid->GetGridPoint(&cam->camPos, cam->camPos.x, cam->camPos.z); 
			cam->camPos.y += 30.0f;
			MovePoint(cam);
		}
	}
	else if(device == mouse)
	{	
		g_lpDIDevice->GetDeviceState(sizeof(DIMOUSESTATE),(LPVOID)&mouseState); 
		radius = 30;
		xRot += (float)mouseState.lY/700;
		yRot -= (float)mouseState.lX/700;
		MovePoint(cam);
		//SetCursorPos(500, 500);
	}
}

void DXinput::MovePoint(Camera *cam)
	{

		D3DXMATRIX temp1;
		D3DXMatrixIdentity(&temp1);
		D3DXMATRIX temp2;
		D3DXMatrixIdentity(&temp2);
		D3DXMatrixTranslation(&temp1, 0,0, radius);
		D3DXMatrixRotationY(&temp2, yRot);
		D3DXMatrixMultiply(&temp1, &temp1, &temp2);
		D3DXMatrixRotationX(&temp2, xRot);
		D3DXMatrixMultiply(&temp1, &temp1, &temp2);
		D3DXMatrixTranslation(&temp2, cam->camPos.x, cam->camPos.y, cam->camPos.z);
		D3DXMatrixMultiply(&temp1, &temp1, &temp2);
		cam->camLook.x = temp1._41;
		cam->camLook.y = temp1._42;
		cam->camLook.z = temp1._43;
	}