2017-03-28 14:33:20 +00:00
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var MathSmoothStep = require('../math/SmoothStep');
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2017-10-04 16:05:26 +00:00
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/**
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* [description]
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*
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* @function Phaser.Actions.SmoothStep
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* @since 3.0.0
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*
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* @param {array} items - An array of Game Objects. The contents of this array are updated by this Action.
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* @param {string} property - [description]
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* @param {number} min - [description]
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* @param {number} max - [description]
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* @param {number} inc - [description]
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* @return {array} The array of Game Objects that was passed to this Action.
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*/
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2017-03-28 15:05:01 +00:00
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var SmoothStep = function (items, property, min, max, inc)
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2017-03-28 14:33:20 +00:00
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{
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2017-03-28 15:05:01 +00:00
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if (inc === undefined) { inc = false; }
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2017-03-28 14:33:20 +00:00
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var step = Math.abs(max - min) / items.length;
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2017-03-28 15:05:01 +00:00
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var i;
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2017-03-28 14:33:20 +00:00
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2017-03-28 15:05:01 +00:00
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if (inc)
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2017-03-28 14:33:20 +00:00
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{
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2017-03-28 15:05:01 +00:00
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for (i = 0; i < items.length; i++)
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{
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items[i][property] += MathSmoothStep(i * step, min, max);
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}
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}
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else
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{
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for (i = 0; i < items.length; i++)
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{
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items[i][property] = MathSmoothStep(i * step, min, max);
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}
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2017-03-28 14:33:20 +00:00
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}
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return items;
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};
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module.exports = SmoothStep;
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