mirror of
https://github.com/photonstorm/phaser
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35 lines
1 KiB
JavaScript
35 lines
1 KiB
JavaScript
/**
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* @author Richard Davey <rich@photonstorm.com>
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* @copyright 2018 Photon Storm Ltd.
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* @license {@link https://github.com/photonstorm/phaser/blob/master/license.txt|MIT License}
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*/
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/**
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* Check to see if the Circle contains the given x / y coordinates.
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*
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* @function Phaser.Geom.Circle.Contains
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* @since 3.0.0
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*
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* @param {Phaser.Geom.Circle} circle - The Circle to check.
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* @param {number} x - The x coordinate to check within the circle.
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* @param {number} y - The y coordinate to check within the circle.
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*
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* @return {boolean} True if the coordinates are within the circle, otherwise false.
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*/
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var Contains = function (circle, x, y)
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{
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// Check if x/y are within the bounds first
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if (circle.radius > 0 && x >= circle.left && x <= circle.right && y >= circle.top && y <= circle.bottom)
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{
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var dx = (circle.x - x) * (circle.x - x);
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var dy = (circle.y - y) * (circle.y - y);
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return (dx + dy) <= (circle.radius * circle.radius);
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}
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else
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{
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return false;
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}
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};
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module.exports = Contains;
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