20 Liners - January 08 - Dynamics — OZONE Asylum, home of the Mad Scientists

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Your Text: Insert Slimies » Insert UBB Code » Close Last Tag \| All Tags UBB Help	Nice. One more way to cut down lines in event handling is to use the \|\| operator to provide a fallback/default value, e.g:[code]var x = Math.round(Math.random()540)+50; if (e.pageX) x = e.pageX; var y = Math.round(Math.random()380)+50; if (e.pageY) y = e.pageY;[/code]becomes[code]var x = (e\|\|{}).pageX\|\|Math.round(Math.random()540)+50; var y = (e\|\|{}).pageY\|\|Math.round(Math.random()380)+50;[/code]Notice the [i](e\|\|{})[/i] which fixes the JS error of trying to access a property of [i]e[/i] when [i]shoot()[/i] is called by the setInterval() Also instead of clearing the explosion manually, you could constantly do a [i]fillRect(0,0,540,480)[/i] in [i]rgba(0,0,0,.2)[/i] for instance. Hope that helps, [url=http://www.p01.org/][img]http://poi.ribbon.free.fr/files/p01_ozoneasylum_sig_dk.gif[/img][/url] [small](Edited by [url=http://www.ozoneasylum.com/user/2185]poi[/url] on 01-08-2008 00:35)[/small] Loading...
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