@tsparticles/effect-trail
Version:
tsParticles trail effect
138 lines (128 loc) • 10.9 kB
JavaScript
/*!
* Author : Matteo Bruni
* MIT license: https://opensource.org/licenses/MIT
* Demo / Generator : https://particles.js.org/
* GitHub : https://www.github.com/matteobruni/tsparticles
* How to use? : Check the GitHub README
* v3.9.1
*/
/*
* ATTENTION: The "eval" devtool has been used (maybe by default in mode: "development").
* This devtool is neither made for production nor for readable output files.
* It uses "eval()" calls to create a separate source file in the browser devtools.
* If you are trying to read the output file, select a different devtool (https://webpack.js.org/configuration/devtool/)
* or disable the default devtool with "devtool: false".
* If you are looking for production-ready output files, see mode: "production" (https://webpack.js.org/configuration/mode/).
*/
(function webpackUniversalModuleDefinition(root, factory) {
if(typeof exports === 'object' && typeof module === 'object')
module.exports = factory(require("@tsparticles/engine"));
else if(typeof define === 'function' && define.amd)
define(["@tsparticles/engine"], factory);
else {
var a = typeof exports === 'object' ? factory(require("@tsparticles/engine")) : factory(root["window"]);
for(var i in a) (typeof exports === 'object' ? exports : root)[i] = a[i];
}
})(this, (__WEBPACK_EXTERNAL_MODULE__tsparticles_engine__) => {
return /******/ (() => { // webpackBootstrap
/******/ "use strict";
/******/ var __webpack_modules__ = ({
/***/ "./dist/browser/TrailDrawer.js":
/*!*************************************!*\
!*** ./dist/browser/TrailDrawer.js ***!
\*************************************/
/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {
eval("{__webpack_require__.r(__webpack_exports__);\n/* harmony export */ __webpack_require__.d(__webpack_exports__, {\n/* harmony export */ TrailDrawer: () => (/* binding */ TrailDrawer)\n/* harmony export */ });\n/* harmony import */ var _tsparticles_engine__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! @tsparticles/engine */ \"@tsparticles/engine\");\n/* harmony import */ var _tsparticles_engine__WEBPACK_IMPORTED_MODULE_0___default = /*#__PURE__*/__webpack_require__.n(_tsparticles_engine__WEBPACK_IMPORTED_MODULE_0__);\n\nconst minTrailLength = 2,\n trailLengthOffset = 1,\n minWidth = -1,\n defaultLength = 10;\nconst defaultTransform = {\n a: 1,\n b: 0,\n c: 0,\n d: 1\n};\nclass TrailDrawer {\n draw(data) {\n const {\n context,\n radius,\n particle,\n transformData\n } = data,\n diameter = radius * _tsparticles_engine__WEBPACK_IMPORTED_MODULE_0__.double,\n pxRatio = particle.container.retina.pixelRatio,\n currentPos = particle.getPosition(),\n trail = particle.trail;\n if (!trail || !particle.trailLength) {\n return;\n }\n const pathLength = particle.trailLength + radius;\n trail.push({\n color: context.fillStyle ?? context.strokeStyle,\n position: {\n x: currentPos.x,\n y: currentPos.y\n },\n transformData: {\n ...data.transformData\n }\n });\n if (trail.length < minTrailLength) {\n return;\n }\n while (trail.length > pathLength) {\n trail.shift();\n }\n const trailLength = Math.min(trail.length, pathLength),\n canvasSize = {\n width: particle.container.canvas.size.width + diameter,\n height: particle.container.canvas.size.height + diameter\n };\n let lastPos = trail[trailLength - trailLengthOffset].position;\n for (let i = trailLength; i > _tsparticles_engine__WEBPACK_IMPORTED_MODULE_0__.none; i--) {\n const step = trail[i - trailLengthOffset],\n position = step.position,\n stepTransformData = particle.trailTransform ? step.transformData ?? defaultTransform : defaultTransform;\n context.setTransform(stepTransformData.a, stepTransformData.b, stepTransformData.c, stepTransformData.d, position.x, position.y);\n context.beginPath();\n context.moveTo(lastPos.x - position.x, lastPos.y - position.y);\n const warp = {\n x: (lastPos.x + canvasSize.width) % canvasSize.width,\n y: (lastPos.y + canvasSize.height) % canvasSize.height\n };\n if (Math.abs(lastPos.x - position.x) > canvasSize.width * _tsparticles_engine__WEBPACK_IMPORTED_MODULE_0__.half || Math.abs(lastPos.y - position.y) > canvasSize.height * _tsparticles_engine__WEBPACK_IMPORTED_MODULE_0__.half) {\n lastPos = position;\n continue;\n }\n context.lineTo(Math.abs(lastPos.x - position.x) > canvasSize.width * _tsparticles_engine__WEBPACK_IMPORTED_MODULE_0__.half ? warp.x : _tsparticles_engine__WEBPACK_IMPORTED_MODULE_0__.originPoint.x, Math.abs(lastPos.y - position.y) > canvasSize.height * _tsparticles_engine__WEBPACK_IMPORTED_MODULE_0__.half ? warp.y : _tsparticles_engine__WEBPACK_IMPORTED_MODULE_0__.originPoint.y);\n const width = Math.max(i / trailLength * diameter, pxRatio, particle.trailMinWidth ?? minWidth),\n oldAlpha = context.globalAlpha;\n context.globalAlpha = particle.trailFade ? i / trailLength : _tsparticles_engine__WEBPACK_IMPORTED_MODULE_0__.defaultAlpha;\n context.lineWidth = particle.trailMaxWidth ? Math.min(width, particle.trailMaxWidth) : width;\n context.strokeStyle = step.color;\n context.stroke();\n context.globalAlpha = oldAlpha;\n lastPos = position;\n }\n context.setTransform(transformData.a, transformData.b, transformData.c, transformData.d, currentPos.x, currentPos.y);\n }\n particleInit(container, particle) {\n particle.trail = [];\n const effectData = particle.effectData;\n particle.trailFade = effectData?.fade ?? true;\n particle.trailLength = (0,_tsparticles_engine__WEBPACK_IMPORTED_MODULE_0__.getRangeValue)(effectData?.length ?? defaultLength) * container.retina.pixelRatio;\n particle.trailMaxWidth = effectData?.maxWidth ? (0,_tsparticles_engine__WEBPACK_IMPORTED_MODULE_0__.getRangeValue)(effectData.maxWidth) * container.retina.pixelRatio : undefined;\n particle.trailMinWidth = effectData?.minWidth ? (0,_tsparticles_engine__WEBPACK_IMPORTED_MODULE_0__.getRangeValue)(effectData.minWidth) * container.retina.pixelRatio : undefined;\n particle.trailTransform = effectData?.transform ?? false;\n }\n}\n\n//# sourceURL=webpack://@tsparticles/effect-trail/./dist/browser/TrailDrawer.js?\n}");
/***/ }),
/***/ "./dist/browser/index.js":
/*!*******************************!*\
!*** ./dist/browser/index.js ***!
\*******************************/
/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {
eval("{__webpack_require__.r(__webpack_exports__);\n/* harmony export */ __webpack_require__.d(__webpack_exports__, {\n/* harmony export */ loadTrailEffect: () => (/* binding */ loadTrailEffect)\n/* harmony export */ });\n/* harmony import */ var _TrailDrawer_js__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./TrailDrawer.js */ \"./dist/browser/TrailDrawer.js\");\n\nasync function loadTrailEffect(engine, refresh = true) {\n engine.checkVersion(\"3.9.1\");\n await engine.addEffect(\"trail\", new _TrailDrawer_js__WEBPACK_IMPORTED_MODULE_0__.TrailDrawer(), refresh);\n}\n\n//# sourceURL=webpack://@tsparticles/effect-trail/./dist/browser/index.js?\n}");
/***/ }),
/***/ "@tsparticles/engine":
/*!*********************************************************************************************************************************!*\
!*** external {"commonjs":"@tsparticles/engine","commonjs2":"@tsparticles/engine","amd":"@tsparticles/engine","root":"window"} ***!
\*********************************************************************************************************************************/
/***/ ((module) => {
module.exports = __WEBPACK_EXTERNAL_MODULE__tsparticles_engine__;
/***/ })
/******/ });
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