import { Factory } from '../Factory.js'; import { Shape } from '../Shape.js'; import { getNumberValidator } from '../Validators.js'; import { _registerNode } from '../Global.js'; export class Star extends Shape { _sceneFunc(context) { var innerRadius = this.innerRadius(), outerRadius = this.outerRadius(), numPoints = this.numPoints(); context.beginPath(); context.moveTo(0, 0 - outerRadius); for (var n = 1; n < numPoints * 2; n++) { var radius = n % 2 === 0 ? outerRadius : innerRadius; var x = radius * Math.sin((n * Math.PI) / numPoints); var y = -1 * radius * Math.cos((n * Math.PI) / numPoints); context.lineTo(x, y); } context.closePath(); context.fillStrokeShape(this); } getWidth() { return this.outerRadius() * 2; } getHeight() { return this.outerRadius() * 2; } setWidth(width) { this.outerRadius(width / 2); } setHeight(height) { this.outerRadius(height / 2); } } Star.prototype.className = 'Star'; Star.prototype._centroid = true; Star.prototype._attrsAffectingSize = ['innerRadius', 'outerRadius']; _registerNode(Star); Factory.addGetterSetter(Star, 'numPoints', 5, getNumberValidator()); Factory.addGetterSetter(Star, 'innerRadius', 0, getNumberValidator()); Factory.addGetterSetter(Star, 'outerRadius', 0, getNumberValidator());