| 1 | var MIN_INT = require('../number/MIN_INT');
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| 2 | var MAX_INT = require('../number/MAX_INT');
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| 3 | var rand = require('./rand');
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| 4 |
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| 5 | /**
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| 6 | * Gets random integer inside range or snap to min/max values.
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| 7 | */
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| 8 | function randInt(min, max){
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| 9 | min = min == null? MIN_INT : ~~min;
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| 10 | max = max == null? MAX_INT : ~~max;
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| 11 | // can't be max + 0.5 otherwise it will round up if `rand`
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| 12 | // returns `max` causing it to overflow range.
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| 13 | // -0.5 and + 0.49 are required to avoid bias caused by rounding
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| 14 | return Math.round( rand(min - 0.5, max + 0.499999999999) );
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| 15 | }
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| 16 |
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| 17 | module.exports = randInt;
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| 18 |
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