68 lines
1.6 KiB
JavaScript
68 lines
1.6 KiB
JavaScript
const PIXI = 'undefined' !== typeof window ? require('pixi.js') : undefined;
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import {Color} from './color';
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import {Renderable} from './renderable';
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export class Primitives extends Renderable {
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static fillStyle(color) {
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return {color};
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}
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static lineStyle(color, thickness = 1) {
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return {color, thickness};
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}
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constructor() {
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super();
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this.internal = new PIXI.Graphics();
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}
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clear() {
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this.internal.clear();
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}
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drawCircle(position, radius, lineStyle, fillStyle) {
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this._wrapStyle('drawCircle', '3rd', lineStyle, fillStyle, () => {
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this.internal.drawCircle(position[0], position[1], radius);
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});
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}
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drawLine(p1, p2, lineStyle, fillStyle) {
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this._wrapStyle('drawLine', '3rd', lineStyle, fillStyle, () => {
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this.internal.moveTo(p1[0], p1[1]);
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this.internal.lineTo(p2[0], p2[1]);
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});
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}
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drawRectangle(rectangle, lineStyle, fillStyle) {
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this._wrapStyle('drawLine', '2nd', lineStyle, fillStyle, () => {
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this.internal.drawRect(
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rectangle[0],
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rectangle[1],
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rectangle[2],
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rectangle[3]
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);
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});
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}
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_wrapStyle(method, where, lineStyle, fillStyle, fn) {
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if (!lineStyle) {
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throw new TypeError(
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`Primitives::${method} expects lineStyle as ${where} parameter`
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);
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}
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if (fillStyle) {
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const {color} = fillStyle;
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this.internal.beginFill(color.toInteger(), color.alpha)
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}
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const {color, thickness} = lineStyle;
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this.internal.lineStyle(thickness, color.toInteger(), color.alpha)
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fn();
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if (fillStyle) {
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this.internal.endFill();
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}
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}
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}
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