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Much more flexible in allowing the ease string input format

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This commit is contained in:
Richard Davey 2019-06-28 12:21:52 +01:00
parent f792f13d7a
commit 594d75c26a
1 changed files with 42 additions and 2 deletions
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42
src/tweens/builders/GetEaseFunction.js
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@ -5,6 +5,7 @@
*/
var EaseMap = require('../../math/easing/EaseMap');
var UppercaseFirst = require('../../utils/string/UppercaseFirst');
/**
* This internal function is used to return the correct ease function for a Tween.
@ -25,11 +26,50 @@ var GetEaseFunction = function (ease, easeParams)
var easeFunction = EaseMap.Power0;
// Prepare ease function
if (typeof ease === 'string' && EaseMap.hasOwnProperty(ease))
if (typeof ease === 'string')
{
// String based look-up
// 1) They specified it correctly
if (EaseMap.hasOwnProperty(ease))
{
easeFunction = EaseMap[ease];
}
else
{
// Do some string manipulation to try and find it
var direction = '';
if (ease.indexOf('.'))
{
// quad.in = Quad.easeIn
// quad.out = Quad.easeOut
// quad.inout =Quad.easeInOut
direction = ease.substr(ease.indexOf('.') + 1);
if (direction.toLowerCase() === 'in')
{
direction = 'easeIn';
}
else if (direction.toLowerCase() === 'out')
{
direction = 'easeOut';
}
else if (direction.toLowerCase() === 'inout')
{
direction = 'easeInOut';
}
}
ease = UppercaseFirst(ease.substr(0, ease.indexOf('.') + 1) + direction);
if (EaseMap.hasOwnProperty(ease))
{
easeFunction = EaseMap[ease];
}
}
}
else if (typeof ease === 'function')
{
// Custom function