If I want to randomly generate a dice (4 side) roll, I can use the following expression:
$roll = 1 + int( rand(4));
This assumes that every side of this dice has equal chance of being rolled (0.25). Thats easy. Now What if I say, that the probability of rolling a 3 is 70% and the probability of rolling a 1 or 2 or 4 is 10%.
i.e.
$probability = { '1' => 0.1,
'2' => 0.1,
'3' => 0.7,
'4 => 0.1
}Notice the total probability still addes up to 1. So If I want to roll this "loaded" dice, how should I modify the above code to accurately reflect the different weight of this new dice? Any suggestion would be appreciated. Thanks.
Charles
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