82 lines
2.5 KiB
JavaScript
82 lines
2.5 KiB
JavaScript
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/**
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* A layer of background alteration effects which change the appearance of the primary group render texture.
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* @category - Canvas
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*/
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class CanvasBackgroundAlterationEffects extends CanvasLayer {
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constructor() {
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super();
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/**
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* A collection of effects which provide background vision alterations.
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* @type {PIXI.Container}
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*/
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this.vision = this.addChild(new PIXI.Container());
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this.vision.sortableChildren = true;
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/**
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* A collection of effects which provide background preferred vision alterations.
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* @type {PIXI.Container}
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*/
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this.visionPreferred = this.addChild(new PIXI.Container());
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this.visionPreferred.sortableChildren = true;
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/**
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* A collection of effects which provide other background alterations.
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* @type {PIXI.Container}
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*/
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this.lighting = this.addChild(new PIXI.Container());
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this.lighting.sortableChildren = true;
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}
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/* -------------------------------------------- */
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/** @override */
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async _draw(options) {
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// Add the background vision filter
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const vf = this.vision.filter = new VoidFilter();
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vf.blendMode = PIXI.BLEND_MODES.NORMAL;
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vf.enabled = false;
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this.vision.filters = [vf];
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this.vision.filterArea = canvas.app.renderer.screen;
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// Add the background preferred vision filter
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const vpf = this.visionPreferred.filter = new VoidFilter();
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vpf.blendMode = PIXI.BLEND_MODES.NORMAL;
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vpf.enabled = false;
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this.visionPreferred.filters = [vpf];
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this.visionPreferred.filterArea = canvas.app.renderer.screen;
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// Add the background lighting filter
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const maskingFilter = CONFIG.Canvas.visualEffectsMaskingFilter;
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const lf = this.lighting.filter = maskingFilter.create({
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visionTexture: canvas.masks.vision.renderTexture,
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darknessLevelTexture: canvas.effects.illumination.renderTexture,
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mode: maskingFilter.FILTER_MODES.BACKGROUND
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});
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lf.blendMode = PIXI.BLEND_MODES.NORMAL;
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this.lighting.filters = [lf];
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this.lighting.filterArea = canvas.app.renderer.screen;
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canvas.effects.visualEffectsMaskingFilters.add(lf);
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}
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/* -------------------------------------------- */
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/** @override */
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async _tearDown(options) {
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canvas.effects.visualEffectsMaskingFilters.delete(this.lighting?.filter);
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this.clear();
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}
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/* -------------------------------------------- */
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/**
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* Clear background alteration effects vision and lighting containers
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*/
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clear() {
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this.vision.removeChildren();
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this.visionPreferred.removeChildren();
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this.lighting.removeChildren();
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}
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}
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