public void First(int count)
{
if (count == 0)
{
technology.FirstBuy();
}
else if (count == 1)
{
science.FirstBuy();
}
else if (count == 2)
{
population.FirstBuy();
}
else if (count == 3)
{
army.FirstBuy();
}
else if (count == 7)
{
energy.FirstBuy();
}
else if (count == 5)
{
food.FirstBuy();
}
}