2017-03-29 19:27:36 +00:00
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var MarchingAnts = require('../geom/rectangle/MarchingAnts');
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var RotateLeft = require('../utils/array/RotateLeft');
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var RotateRight = require('../utils/array/RotateRight');
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2017-03-29 16:11:26 +00:00
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2017-03-29 19:27:36 +00:00
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// Place the items in the array around the perimeter of the given rectangle.
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// Placement starts from the top-left of the rectangle, and proceeds in a
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// clockwise direction. If the shift parameter is given you can offset where
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// placement begins.
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var PlaceOnRectangle = function (items, rect, shift)
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2017-03-29 16:11:26 +00:00
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{
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2017-03-29 19:27:36 +00:00
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if (shift === undefined) { shift = 0; }
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2017-03-29 16:11:26 +00:00
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2017-03-29 19:27:36 +00:00
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var points = MarchingAnts(rect, false, items.length);
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if (shift > 0)
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2017-03-29 16:11:26 +00:00
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{
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2017-03-29 19:27:36 +00:00
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RotateLeft(points, shift);
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}
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else if (shift < 0)
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{
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RotateRight(points, Math.abs(shift));
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}
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2017-03-29 16:11:26 +00:00
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2017-03-29 19:27:36 +00:00
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for (var i = 0; i < items.length; i++)
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{
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items[i].x = points[i].x;
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items[i].y = points[i].y;
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2017-03-29 16:11:26 +00:00
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}
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return items;
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};
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module.exports = PlaceOnRectangle;
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