United3dArtists Archive

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    // this one-liner is good to know:
    // Math.max(minValue, Math.min(maxValue, valueToClamp));
     
    // wrapped in a function it looks like this:
    const MIN:Number = 0;
    const MAX:Number = 100;
     
    function clamp(val:Number, min:Number = MIN, max:Number = MAX){
        return Math.max(min, Math.min(max, val))
    }
     
    for (var i:int = 0; i<1000; i++){
        var val:Number = Math.random()*1000 - 500;
        // clamp the above random value between -100 and +100
        trace(clamp(val, -100, 100));
    }

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/**
 * Returns a number whose value is limited to the given range.
 *
 * Example: limit the output of this computation to between 0 and 255
 * (x * 255).clamp(0, 255)
 *
 * @param {Number} min The lower boundary of the output range
 * @param {Number} max The upper boundary of the output range
 * @returns A number in the range [min, max]
 * @type Number
 */
Number.prototype.clamp = function(min, max) {
  return Math.min(Math.max(this, min), max);
};