Constants

I realize we have LL-provided common constants, but to the best of my knowledge, we can't declare our own. (Please, somebody correct me if I'm wrong.)

I realize that we can declare and name variables to make them seem like constants, but there's a critical difference.

This code results in a logic error, that could be a pain to debug in a large script:

integer CHAN_PUBLIC = 0;

default
{
    state_entry()
    {
    }

    listen(integer channel, string name, key id, string message)
    {
        if (CHAN_PUBLIC = channel)
        {
            // Code always executes, UNLESS channel is 0
        }
    }
}

This code, on the other hand, would result in a compiler error, and the bug would never occur in the first place:

const integer CHAN_PUBLIC = 0;

default
{
    state_entry()
    {
    }

    listen(integer channel, string name, key id, string message)
    {
        if (CHAN_PUBLIC = channel)  // Compiler error, can't assign to constant
        {
        }
    }
}