@tsparticles/shape-emoji/tsparticles.shape.emoji.js

tsParticles emoji shape

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/* Shape v4.1.0 */
(function (global, factory) {
    typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports, require('@tsparticles/engine'), require('@tsparticles/canvas-utils')) :
    typeof define === 'function' && define.amd ? define(['exports', '@tsparticles/engine', '@tsparticles/canvas-utils'], factory) :
    (global = typeof globalThis !== 'undefined' ? globalThis : global || self, factory((global.__tsParticlesInternals = global.__tsParticlesInternals || {}, global.__tsParticlesInternals.shapes = global.__tsParticlesInternals.shapes || {}, global.__tsParticlesInternals.shapes.emoji = global.__tsParticlesInternals.shapes.emoji || {}), global.__tsParticlesInternals.engine, global.__tsParticlesInternals.canvas.utils));
})(this, (function (exports, engine, canvasUtils) { 'use strict';

    const validTypes = ["emoji"];
    function drawEmoji(data, image) {
        const { context, opacity } = data, previousAlpha = context.globalAlpha, diameter = image.width, radius = diameter * engine.half;
        context.globalAlpha = opacity;
        context.drawImage(image, -radius, -radius, diameter, diameter);
        context.globalAlpha = previousAlpha;
    }

    const defaultFont = '"Apple Color Emoji", "Segoe UI Emoji", "Noto Color Emoji", sans-serif', noPadding = 0, firstItem = 0;
    class EmojiDrawer {
        #emojiShapeDict = new Map();
        destroy() {
            for (const [key, data] of this.#emojiShapeDict) {
                if (data instanceof ImageBitmap) {
                    data.close();
                }
                this.#emojiShapeDict.delete(key);
            }
        }
        draw(data) {
            const key = data.particle.emojiDataKey;
            if (!key) {
                return;
            }
            const image = this.#emojiShapeDict.get(key);
            if (!image) {
                return;
            }
            drawEmoji(data, image);
        }
        async init(container) {
            const options = container.actualOptions, shapeData = options.particles.shape;
            if (!validTypes.some(t => engine.isInArray(t, shapeData.type))) {
                return;
            }
            const promises = [canvasUtils.loadFont(defaultFont)], shapeOptions = validTypes.map(t => shapeData.options[t])[firstItem];
            engine.executeOnSingleOrMultiple(shapeOptions, shape => {
                if (shape.font) {
                    promises.push(canvasUtils.loadFont(shape.font));
                }
            });
            await Promise.all(promises);
        }
        particleDestroy(particle) {
            particle.emojiDataKey = undefined;
        }
        particleInit(container, particle) {
            const shapeData = particle.shapeData;
            if (!shapeData.value) {
                return;
            }
            const emoji = engine.itemFromSingleOrMultiple(shapeData.value, particle.randomIndexData);
            if (!emoji) {
                return;
            }
            const emojiOptions = typeof emoji === "string"
                ? {
                    font: shapeData.font ?? defaultFont,
                    padding: shapeData.padding ?? noPadding,
                    value: emoji,
                }
                : {
                    font: defaultFont,
                    padding: noPadding,
                    ...shapeData,
                    ...emoji,
                }, font = emojiOptions.font, value = emojiOptions.value, cacheKey = `${value}_${font}`;
            if (this.#emojiShapeDict.has(cacheKey)) {
                particle.emojiDataKey = cacheKey;
                return;
            }
            const padding = emojiOptions.padding * engine.double, maxSize = engine.getRangeMax(particle.size.value), fullSize = maxSize + padding, canvasSize = fullSize * engine.double, cacheCanvas = new OffscreenCanvas(canvasSize, canvasSize), context = cacheCanvas.getContext("2d", container.canvas.render.settings);
            if (!context) {
                return;
            }
            context.font = `400 ${(maxSize * engine.double).toString()}px ${font}`;
            context.textBaseline = "middle";
            context.textAlign = "center";
            context.fillText(value, fullSize, fullSize);
            const image = cacheCanvas instanceof HTMLCanvasElement ? cacheCanvas : cacheCanvas.transferToImageBitmap();
            this.#emojiShapeDict.set(cacheKey, image);
            particle.emojiDataKey = cacheKey;
        }
    }

    async function loadEmojiShape(engine) {
        engine.checkVersion("4.1.0");
        await engine.pluginManager.register(e => {
            e.pluginManager.addShape(validTypes, () => Promise.resolve(new EmojiDrawer()));
        });
    }

    const globalObject = globalThis;
    globalObject.__tsParticlesInternals = globalObject.__tsParticlesInternals ?? {};
    globalObject.loadEmojiShape = loadEmojiShape;

    exports.loadEmojiShape = loadEmojiShape;

}));
Object.assign(globalThis.window || globalThis, { loadEmojiShape: (globalThis.__tsParticlesInternals.shapes.emoji || {}).loadEmojiShape });
delete (globalThis.window || globalThis).tsparticlesInternalExports;