[DGD] casting nil (another idea...)

[Robert Forshaw]

Just a small idea. How about being able to typecast nil to integer, 
converting it to 0? If a variable is expected to hold nil, 0, or another 
integer, and you want to always treat it as an integer, then:

luck -= (int)query_property("luck_reduction");

Looks much neater than:

int i;
if((i = query_property("luck_reduction") == nil)
    i = 0;
luck -= i;

And probably saves a few ticks as well.

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