49 lines
1.1 KiB
JavaScript
49 lines
1.1 KiB
JavaScript
import {
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createSizedArray,
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} from '../helpers/arrays';
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import shapePool from './shape_pool';
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import pooling from './pooling';
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import ShapeCollection from '../shapes/ShapeCollection';
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const shapeCollectionPool = (function () {
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var ob = {
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newShapeCollection: newShapeCollection,
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release: release,
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};
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var _length = 0;
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var _maxLength = 4;
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var pool = createSizedArray(_maxLength);
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function newShapeCollection() {
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var shapeCollection;
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if (_length) {
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_length -= 1;
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shapeCollection = pool[_length];
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} else {
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shapeCollection = new ShapeCollection();
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}
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return shapeCollection;
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}
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function release(shapeCollection) {
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var i;
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var len = shapeCollection._length;
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for (i = 0; i < len; i += 1) {
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shapePool.release(shapeCollection.shapes[i]);
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}
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shapeCollection._length = 0;
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if (_length === _maxLength) {
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pool = pooling.double(pool);
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_maxLength *= 2;
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}
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pool[_length] = shapeCollection;
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_length += 1;
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}
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return ob;
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}());
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export default shapeCollectionPool;
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