tsparticles-engine
Version:
Easily create highly customizable particle, confetti and fireworks animations and use them as animated backgrounds for your website. Ready to use components available also for React, Vue.js (2.x and 3.x), Angular, Svelte, jQuery, Preact, Riot.js, Inferno.
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JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.alterHsl = exports.drawParticlePlugin = exports.drawPlugin = exports.drawShapeAfterEffect = exports.drawShape = exports.drawParticle = exports.clear = exports.paintImage = exports.paintBase = exports.drawTriangle = exports.drawLine = void 0;
const ColorUtils_1 = require("./ColorUtils");
function drawLine(context, begin, end) {
context.beginPath();
context.moveTo(begin.x, begin.y);
context.lineTo(end.x, end.y);
context.closePath();
}
exports.drawLine = drawLine;
function drawTriangle(context, p1, p2, p3) {
context.beginPath();
context.moveTo(p1.x, p1.y);
context.lineTo(p2.x, p2.y);
context.lineTo(p3.x, p3.y);
context.closePath();
}
exports.drawTriangle = drawTriangle;
function paintBase(context, dimension, baseColor) {
context.fillStyle = baseColor ?? "rgba(0,0,0,0)";
context.fillRect(0, 0, dimension.width, dimension.height);
}
exports.paintBase = paintBase;
function paintImage(context, dimension, image, opacity) {
if (!image) {
return;
}
context.globalAlpha = opacity;
context.drawImage(image, 0, 0, dimension.width, dimension.height);
context.globalAlpha = 1;
}
exports.paintImage = paintImage;
function clear(context, dimension) {
context.clearRect(0, 0, dimension.width, dimension.height);
}
exports.clear = clear;
function drawParticle(data) {
const { container, context, particle, delta, colorStyles, backgroundMask, composite, radius, opacity, shadow, transform, } = data;
const pos = particle.getPosition(), angle = particle.rotation + (particle.pathRotation ? particle.velocity.angle : 0), rotateData = {
sin: Math.sin(angle),
cos: Math.cos(angle),
}, transformData = {
a: rotateData.cos * (transform.a ?? 1),
b: rotateData.sin * (transform.b ?? 1),
c: -rotateData.sin * (transform.c ?? 1),
d: rotateData.cos * (transform.d ?? 1),
};
context.setTransform(transformData.a, transformData.b, transformData.c, transformData.d, pos.x, pos.y);
context.beginPath();
if (backgroundMask) {
context.globalCompositeOperation = composite;
}
const shadowColor = particle.shadowColor;
if (shadow.enable && shadowColor) {
context.shadowBlur = shadow.blur;
context.shadowColor = (0, ColorUtils_1.getStyleFromRgb)(shadowColor);
context.shadowOffsetX = shadow.offset.x;
context.shadowOffsetY = shadow.offset.y;
}
if (colorStyles.fill) {
context.fillStyle = colorStyles.fill;
}
const strokeWidth = particle.strokeWidth ?? 0;
context.lineWidth = strokeWidth;
if (colorStyles.stroke) {
context.strokeStyle = colorStyles.stroke;
}
drawShape(container, context, particle, radius, opacity, delta);
if (strokeWidth > 0) {
context.stroke();
}
if (particle.close) {
context.closePath();
}
if (particle.fill) {
context.fill();
}
drawShapeAfterEffect(container, context, particle, radius, opacity, delta);
context.globalCompositeOperation = "source-over";
context.setTransform(1, 0, 0, 1, 0, 0);
}
exports.drawParticle = drawParticle;
function drawShape(container, context, particle, radius, opacity, delta) {
if (!particle.shape) {
return;
}
const drawer = container.drawers.get(particle.shape);
if (!drawer) {
return;
}
drawer.draw(context, particle, radius, opacity, delta, container.retina.pixelRatio);
}
exports.drawShape = drawShape;
function drawShapeAfterEffect(container, context, particle, radius, opacity, delta) {
if (!particle.shape) {
return;
}
const drawer = container.drawers.get(particle.shape);
if (!drawer || !drawer.afterEffect) {
return;
}
drawer.afterEffect(context, particle, radius, opacity, delta, container.retina.pixelRatio);
}
exports.drawShapeAfterEffect = drawShapeAfterEffect;
function drawPlugin(context, plugin, delta) {
if (!plugin.draw) {
return;
}
plugin.draw(context, delta);
}
exports.drawPlugin = drawPlugin;
function drawParticlePlugin(context, plugin, particle, delta) {
if (!plugin.drawParticle) {
return;
}
plugin.drawParticle(context, particle, delta);
}
exports.drawParticlePlugin = drawParticlePlugin;
function alterHsl(color, type, value) {
return {
h: color.h,
s: color.s,
l: color.l + (type === "darken" ? -1 : 1) * value,
};
}
exports.alterHsl = alterHsl;