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Best way to get a random number that is either -1 or 1

Started by Random Terrain, Sep 4 2010 5:09 AM

2 replies to this topic

#1 Random Terrain ONLINE  

Random Terrain

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Posted Sat Sep 4, 2010 5:09 AM

Is this the best way to get a random number that is either -1 or 1?

a = (255+(rand&1) | %00000001)


Thanks.

#2 Crazyace OFFLINE  

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Posted Sat Sep 4, 2010 6:46 AM

a = 255+(rand&2)

#3 Random Terrain ONLINE  

Random Terrain

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Posted Sat Sep 4, 2010 6:59 AM

View PostCrazyace, on Sat Sep 4, 2010 6:46 AM, said:

a = 255+(rand&2)
Thanks. I've been blocking out anything besides 1, 3, 7, 15, 31, and so on for months, so I automatically ignored the other numbers. I knew there had to be a better way.
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