public static bool GetAlphaKeyValue(out int alphaKey)
{
alphaKey = -1;
if (Input.GetKeyDown(KeyCode.Alpha0) alphaKey = 0;
else if (Input.GetKeyDown(KeyCode.Alpha1) alphaKey = 1;
else if (Input.GetKeyDown(KeyCode.Alpha2) alphaKey = 2;
else if (Input.GetKeyDown(KeyCode.Alpha3) alphaKey = 3;
else if (Input.GetKeyDown(KeyCode.Alpha4) alphaKey = 4;
else if (Input.GetKeyDown(KeyCode.Alpha5) alphaKey = 5;
else if (Input.GetKeyDown(KeyCode.Alpha6) alphaKey = 6;
else if (Input.GetKeyDown(KeyCode.Alpha7) alphaKey = 7;
else if (Input.GetKeyDown(KeyCode.Alpha8) alphaKey = 8;
else if (Input.GetKeyDown(KeyCode.Alpha9) alphaKey = 9;
return alphaKey >= 0;
}