@pixi/core/lib/background/BackgroundSystem.mjs

Core PixiJS

import { Color } from '@pixi/color';
import { ExtensionType, extensions } from '@pixi/extensions';

class BackgroundSystem {
  constructor() {
    this.clearBeforeRender = true;
    this._backgroundColor = new Color(0);
    this.alpha = 1;
  }
  init(options) {
    this.clearBeforeRender = options.clearBeforeRender;
    const { backgroundColor, background, backgroundAlpha } = options;
    const color = background ?? backgroundColor;
    if (color !== void 0) {
      this.color = color;
    }
    this.alpha = backgroundAlpha;
  }
  get color() {
    return this._backgroundColor.value;
  }
  set color(value) {
    this._backgroundColor.setValue(value);
  }
  get alpha() {
    return this._backgroundColor.alpha;
  }
  set alpha(value) {
    this._backgroundColor.setAlpha(value);
  }
  get backgroundColor() {
    return this._backgroundColor;
  }
  destroy() {
  }
}
BackgroundSystem.defaultOptions = {
  backgroundAlpha: 1,
  backgroundColor: 0,
  clearBeforeRender: true
};
BackgroundSystem.extension = {
  type: [
    ExtensionType.RendererSystem,
    ExtensionType.CanvasRendererSystem
  ],
  name: "background"
};
extensions.add(BackgroundSystem);

export { BackgroundSystem };
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