public void LiftButtonHandler(object sender, EventArgs e)
{
// Each button has a tag associated with it. The tag is two digits - the first specifies
// the lift the button belongs to, the second is the floor specified. e.g. 23 is lift 2, floor 3.
// This handler will handle all the lift buttons without having to write a Click event handler
// for each individual button.
// The sender will be one of the lift buttons, so cast the sender to a Button object.
Button buttonSender = (Button)sender;
// Cast the Tag to a string
string buttonTag = (string)buttonSender.Tag;
// Get the lift and floor that the sender button is referring to.
// Strings are arrays of characters, so we can get the individual characters we need
// FIXME: Convert.ToInt32 can parse characters, but returns the decimal ASCII value of those characters
// So we need to get the character, convert it to a string, then convert it to an int.
// Casting to an integer doesn't work either...
int lift = Int32.Parse(buttonTag[0].ToString());
int floor = Int32.Parse(buttonTag[1].ToString());
bool destOK = false;
switch (lift)
{
case 1:
if (lift1.GetCurrentFloor != floor && !lift1.IsDest(floor))
{
lift1.AddDest(floor); destOK = true;
}
break;
case 2:
if (lift2.GetCurrentFloor != floor && !lift2.IsDest(floor))
{
lift2.AddDest(floor); destOK = true;
}
break;
case 3:
if (lift3.GetCurrentFloor != floor && !lift3.IsDest(floor))
{
lift3.AddDest(floor); destOK = true;
}
break;
default:
break;
}
if (destOK)
{
buttonSender.BackColor = Color.DarkRed;
buttonSender.ForeColor = Color.White;
}
}
