mirror of
https://github.com/photonstorm/phaser
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34 lines
793 B
JavaScript
34 lines
793 B
JavaScript
/**
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* @author Richard Davey <rich@photonstorm.com>
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* @copyright 2019 Photon Storm Ltd.
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* @license {@link https://opensource.org/licenses/MIT|MIT License}
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*/
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/**
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* Center a line on the given coordinates.
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*
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* @function Phaser.Geom.Line.CenterOn
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* @since 3.0.0
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*
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* @param {Phaser.Geom.Line} line - The line to center.
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* @param {number} x - The horizontal coordinate to center the line on.
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* @param {number} y - The vertical coordinate to center the line on.
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*
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* @return {Phaser.Geom.Line} The centered line.
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*/
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var CenterOn = function (line, x, y)
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{
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var tx = x - ((line.x1 + line.x2) / 2);
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var ty = y - ((line.y1 + line.y2) / 2);
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line.x1 += tx;
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line.y1 += ty;
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line.x2 += tx;
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line.y2 += ty;
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return line;
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};
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module.exports = CenterOn;
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