168 lines
4.7 KiB
JavaScript
168 lines
4.7 KiB
JavaScript
(function (global, factory) {
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typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports) :
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typeof define === 'function' && define.amd ? define(['exports'], factory) :
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(global = global || self, factory(global.window = global.window || {}));
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}(this, (function (exports) { 'use strict';
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/*!
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* Physics2DPlugin 3.13.0
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* https://gsap.com
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*
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* @license Copyright 2008-2025, GreenSock. All rights reserved.
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* Subject to the terms at https://gsap.com/standard-license
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* @author: Jack Doyle, jack@greensock.com
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*/
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var gsap,
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_coreInitted,
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_getUnit,
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_getStyleSaver,
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_reverting,
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_DEG2RAD = Math.PI / 180,
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_getGSAP = function _getGSAP() {
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return gsap || typeof window !== "undefined" && (gsap = window.gsap) && gsap.registerPlugin && gsap;
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},
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_round = function _round(value) {
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return Math.round(value * 10000) / 10000;
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},
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_initCore = function _initCore(core) {
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gsap = core || _getGSAP();
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if (!_coreInitted) {
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_getUnit = gsap.utils.getUnit;
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_getStyleSaver = gsap.core.getStyleSaver;
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_reverting = gsap.core.reverting || function () {};
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_coreInitted = 1;
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}
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};
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var PhysicsProp = function PhysicsProp(target, p, velocity, acceleration, stepsPerTimeUnit) {
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var cache = target._gsap,
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curVal = cache.get(target, p);
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this.p = p;
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this.set = cache.set(target, p);
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this.s = this.val = parseFloat(curVal);
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this.u = _getUnit(curVal) || 0;
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this.vel = velocity || 0;
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this.v = this.vel / stepsPerTimeUnit;
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if (acceleration || acceleration === 0) {
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this.acc = acceleration;
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this.a = this.acc / (stepsPerTimeUnit * stepsPerTimeUnit);
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} else {
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this.acc = this.a = 0;
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}
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};
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var Physics2DPlugin = {
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version: "3.13.0",
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name: "physics2D",
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register: _initCore,
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init: function init(target, value, tween) {
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_coreInitted || _initCore();
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var data = this,
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angle = +value.angle || 0,
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velocity = +value.velocity || 0,
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acceleration = +value.acceleration || 0,
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xProp = value.xProp || "x",
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yProp = value.yProp || "y",
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aAngle = value.accelerationAngle || value.accelerationAngle === 0 ? +value.accelerationAngle : angle;
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data.styles = _getStyleSaver && _getStyleSaver(target, value.xProp && value.xProp !== "x" ? value.xProp + "," + value.yProp : "transform");
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data.target = target;
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data.tween = tween;
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data.step = 0;
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data.sps = 30;
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if (value.gravity) {
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acceleration = +value.gravity;
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aAngle = 90;
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}
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angle *= _DEG2RAD;
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aAngle *= _DEG2RAD;
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data.fr = 1 - (+value.friction || 0);
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data._props.push(xProp, yProp);
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data.xp = new PhysicsProp(target, xProp, Math.cos(angle) * velocity, Math.cos(aAngle) * acceleration, data.sps);
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data.yp = new PhysicsProp(target, yProp, Math.sin(angle) * velocity, Math.sin(aAngle) * acceleration, data.sps);
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data.skipX = data.skipY = 0;
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},
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render: function render(ratio, data) {
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var xp = data.xp,
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yp = data.yp,
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tween = data.tween,
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target = data.target,
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step = data.step,
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sps = data.sps,
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fr = data.fr,
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skipX = data.skipX,
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skipY = data.skipY,
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time = tween._from ? tween._dur - tween._time : tween._time,
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x,
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y,
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tt,
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steps,
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remainder,
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i;
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if (tween._time || !_reverting()) {
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if (fr === 1) {
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tt = time * time * 0.5;
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x = xp.s + xp.vel * time + xp.acc * tt;
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y = yp.s + yp.vel * time + yp.acc * tt;
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} else {
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time *= sps;
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steps = i = (time | 0) - step;
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if (i < 0) {
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xp.v = xp.vel / sps;
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yp.v = yp.vel / sps;
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xp.val = xp.s;
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yp.val = yp.s;
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data.step = 0;
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steps = i = time | 0;
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}
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remainder = time % 1 * fr;
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while (i--) {
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xp.v += xp.a;
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yp.v += yp.a;
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xp.v *= fr;
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yp.v *= fr;
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xp.val += xp.v;
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yp.val += yp.v;
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}
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x = xp.val + xp.v * remainder;
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y = yp.val + yp.v * remainder;
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data.step += steps;
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}
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skipX || xp.set(target, xp.p, _round(x) + xp.u);
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skipY || yp.set(target, yp.p, _round(y) + yp.u);
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} else {
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data.styles.revert();
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}
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},
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kill: function kill(property) {
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if (this.xp.p === property) {
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this.skipX = 1;
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}
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if (this.yp.p === property) {
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this.skipY = 1;
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}
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}
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};
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_getGSAP() && gsap.registerPlugin(Physics2DPlugin);
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exports.Physics2DPlugin = Physics2DPlugin;
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exports.default = Physics2DPlugin;
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Object.defineProperty(exports, '__esModule', { value: true });
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})));
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