also, i'm sure it's a typo, but the fn you originally posted is missing
its argument vector...it won't even compile like that...
Jim
On 21/01/13 20:33, JvJ wrote:
That's it! Thanks.
On Monday, 21 January 2013 15:28:39 UTC-5, Jim foo.bar wrote:
...or you can go all the way, skipping reset! completely:
(swap! game-objects (fn [objects] (reduce-kv #(assoc % %2
(update-object
%3)) {} objects) ))
Jim
ps: I've not tested this but i don't see why this approach
wouldn't work...
On 21/01/13 20:24, Jim - FooBar(); wrote:
> use reduce-kv on the original map to save some intermediate vector
> allocation...something similar has come up recently...
>
> (reduce-kv #(assoc % %2 (update-object %3)) {} @game-objects)
>
> Jim
>
> On 21/01/13 20:21, JvJ wrote:
>> I'm updating a set of objects stored in a map, and I feel like the
>> way I'm doing it right now is inefficient. Is there a better way?
>>
>> (defn update-all-objects
>> "Updates all game objects."
>> (reset! *game-objects*
>> (into {}
>> (for [[k v] @*game-objects*]
>> [k (update-object v)]))))
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