dragonbones-runtime

////////////////////////////////////////////////////////////////////////////////////// // // Copyright (c) 2014-present, Egret Technology. // All rights reserved. // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above copyright // notice, this list of conditions and the following disclaimer in the // documentation and/or other materials provided with the distribution. // * Neither the name of the Egret nor the // names of its contributors may be used to endorse or promote products // derived from this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY EGRET AND CONTRIBUTORS "AS IS" AND ANY EXPRESS // OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES // OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. // IN NO EVENT SHALL EGRET AND CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, // INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;LOSS OF USE, DATA, // OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF // LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING // NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, // EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // ////////////////////////////////////////////////////////////////////////////////////// namespace egret { /** * Easing function set. Different easing functions are used to make an animation proceed according to the corresponding equation * @see http://edn.egret.com/cn/index.php/article/index/id/53 Easing effect Demo * @version Egret 2.4 * @platform Web,Native * @language en_US */ /** * 缓动函数集合，使用不同的缓动函数使得动画按照对应的方程进行 * @see http://edn.egret.com/cn/index.php/article/index/id/53 缓动效果演示 * @version Egret 2.4 * @platform Web,Native * @language zh_CN */ export class Ease { /** * @version Egret 2.4 * @platform Web,Native */ constructor() { egret.$error(1014); } /** * get.See example. * @version Egret 2.4 * @platform Web,Native * @language en_US */ /** * get。请查看示例 * @version Egret 2.4 * @platform Web,Native * @language zh_CN */ public static get(amount: number) { if (amount < -1) { amount = -1; } if (amount > 1) { amount = 1; } return function (t: number) { if (amount == 0) { return t; } if (amount < 0) { return t * (t * -amount + 1 + amount); } return t * ((2 - t) * amount + (1 - amount)); } } /** * get pow in.See example. * @version Egret 2.4 * @platform Web,Native * @language en_US */ /** * get pow in。请查看示例 * @version Egret 2.4 * @platform Web,Native * @language zh_CN */ public static getPowIn(pow: number) { return function (t: number) { return Math.pow(t, pow); } } /** * get pow out.See example. * @version Egret 2.4 * @platform Web,Native * @language en_US */ /** * get pow out。请查看示例 * @version Egret 2.4 * @platform Web,Native * @language zh_CN */ public static getPowOut(pow: number) { return function (t: number) { return 1 - Math.pow(1 - t, pow); } } /** * get pow in out.See example. * @version Egret 2.4 * @platform Web,Native * @language en_US */ /** * get pow in out。请查看示例 * @version Egret 2.4 * @platform Web,Native * @language zh_CN */ public static getPowInOut(pow: number) { return function (t: number) { if ((t *= 2) < 1) return 0.5 * Math.pow(t, pow); return 1 - 0.5 * Math.abs(Math.pow(2 - t, pow)); } } /** * quad in.See example. * @version Egret 2.4 * @platform Web,Native * @language en_US */ /** * quad in。请查看示例 * @version Egret 2.4 * @platform Web,Native * @language zh_CN */ public static quadIn = Ease.getPowIn(2); /** * quad out.See example. * @version Egret 2.4 * @platform Web,Native * @language en_US */ /** * quad out。请查看示例 * @version Egret 2.4 * @platform Web,Native * @language zh_CN */ public static quadOut = Ease.getPowOut(2); /** * quad in out.See example. * @version Egret 2.4 * @platform Web,Native * @language en_US */ /** * quad in out。请查看示例 * @version Egret 2.4 * @platform Web,Native * @language zh_CN */ public static quadInOut = Ease.getPowInOut(2); /** * cubic in.See example. * @version Egret 2.4 * @platform Web,Native * @language en_US */ /** * cubic in。请查看示例 * @version Egret 2.4 * @platform Web,Native * @language zh_CN */ public static cubicIn = Ease.getPowIn(3); /** * cubic out.See example. * @version Egret 2.4 * @platform Web,Native * @language en_US */ /** * cubic out。请查看示例 * @version Egret 2.4 * @platform Web,Native * @language zh_CN */ public static cubicOut = Ease.getPowOut(3); /** * cubic in out.See example. * @version Egret 2.4 * @platform Web,Native * @language en_US */ /** * cubic in out。请查看示例 * @version Egret 2.4 * @platform Web,Native * @language zh_CN */ public static cubicInOut = Ease.getPowInOut(3); /** * quart in.See example. * @version Egret 2.4 * @platform Web,Native * @language en_US */ /** * quart in。请查看示例 * @version Egret 2.4 * @platform Web,Native * @language zh_CN */ public static quartIn = Ease.getPowIn(4); /** * quart out.See example. * @version Egret 2.4 * @platform Web,Native * @language en_US */ /** * quart out。请查看示例 * @version Egret 2.4 * @platform Web,Native * @language zh_CN */ public static quartOut = Ease.getPowOut(4); /** * quart in out.See example. * @version Egret 2.4 * @platform Web,Native * @language en_US */ /** * quart in out。请查看示例 * @version Egret 2.4 * @platform Web,Native * @language zh_CN */ public static quartInOut = Ease.getPowInOut(4); /** * quint in.See example. * @version Egret 2.4 * @platform Web,Native * @language en_US */ /** * quint in。请查看示例 * @version Egret 2.4 * @platform Web,Native * @language zh_CN */ public static quintIn = Ease.getPowIn(5); /** * quint out.See example. * @version Egret 2.4 * @platform Web,Native * @language en_US */ /** * quint out。请查看示例 * @version Egret 2.4 * @platform Web,Native * @language zh_CN */ public static quintOut = Ease.getPowOut(5); /** * quint in out.See example. * @version Egret 2.4 * @platform Web,Native * @language en_US */ /** * quint in out。请查看示例 * @version Egret 2.4 * @platform Web,Native * @language zh_CN */ public static quintInOut = Ease.getPowInOut(5); /** * sine in.See example. * @version Egret 2.4 * @platform Web,Native * @language en_US */ /** * sine in。请查看示例 * @version Egret 2.4 * @platform Web,Native * @language zh_CN */ public static sineIn(t: number) { return 1 - Math.cos(t * Math.PI / 2); } /** * sine out.See example. * @version Egret 2.4 * @platform Web,Native * @language en_US */ /** * sine out。请查看示例 * @version Egret 2.4 * @platform Web,Native * @language zh_CN */ public static sineOut(t: number) { return Math.sin(t * Math.PI / 2); } /** * sine in out.See example. * @version Egret 2.4 * @platform Web,Native * @language en_US */ /** * sine in out。请查看示例 * @version Egret 2.4 * @platform Web,Native * @language zh_CN */ public static sineInOut(t: number) { return -0.5 * (Math.cos(Math.PI * t) - 1) } /** * get back in.See example. * @version Egret 2.4 * @platform Web,Native * @language en_US */ /** * get back in。请查看示例 * @version Egret 2.4 * @platform Web,Native * @language zh_CN */ public static getBackIn(amount: number) { return function (t: number) { return t * t * ((amount + 1) * t - amount); } } /** * back in.See example. * @version Egret 2.4 * @platform Web,Native * @language en_US */ /** * back in。请查看示例 * @version Egret 2.4 * @platform Web,Native * @language zh_CN */ public static backIn = Ease.getBackIn(1.7); /** * get back out.See example. * @version Egret 2.4 * @platform Web,Native * @language en_US */ /** * get back out。请查看示例 * @version Egret 2.4 * @platform Web,Native * @language zh_CN */ public static getBackOut(amount: number) { return function (t) { return (--t * t * ((amount + 1) * t + amount) + 1); } } /** * back out.See example. * @version Egret 2.4 * @platform Web,Native * @language en_US */ /** * back out。请查看示例 * @version Egret 2.4 * @platform Web,Native * @language zh_CN */ public static backOut = Ease.getBackOut(1.7); /** * get back in out.See example. * @version Egret 2.4 * @platform Web,Native * @language en_US */ /** * get back in out。请查看示例 * @version Egret 2.4 * @platform Web,Native * @language zh_CN */ public static getBackInOut(amount: number) { amount *= 1.525; return function (t: number) { if ((t *= 2) < 1) return 0.5 * (t * t * ((amount + 1) * t - amount)); return 0.5 * ((t -= 2) * t * ((amount + 1) * t + amount) + 2); } } /** * back in out.See example. * @version Egret 2.4 * @platform Web,Native * @language en_US */ /** * back in out。请查看示例 * @version Egret 2.4 * @platform Web,Native * @language zh_CN */ public static backInOut = Ease.getBackInOut(1.7); /** * circ in.See example. * @version Egret 2.4 * @platform Web,Native * @language en_US */ /** * circ in。请查看示例 * @version Egret 2.4 * @platform Web,Native * @language zh_CN */ public static circIn(t: number) { return -(Math.sqrt(1 - t * t) - 1); } /** * circ out.See example. * @version Egret 2.4 * @platform Web,Native * @language en_US */ /** * circ out。请查看示例 * @version Egret 2.4 * @platform Web,Native * @language zh_CN */ public static circOut(t: number) { return Math.sqrt(1 - (--t) * t); } /** * circ in out.See example. * @version Egret 2.4 * @platform Web,Native * @language en_US */ /** * circ in out。请查看示例 * @version Egret 2.4 * @platform Web,Native * @language zh_CN */ public static circInOut(t: number) { if ((t *= 2) < 1) { return -0.5 * (Math.sqrt(1 - t * t) - 1); } return 0.5 * (Math.sqrt(1 - (t -= 2) * t) + 1); } /** * bounce in.See example. * @version Egret 2.4 * @platform Web,Native * @language en_US */ /** * bounce in。请查看示例 * @version Egret 2.4 * @platform Web,Native * @language zh_CN */ public static bounceIn(t: number) { return 1 - Ease.bounceOut(1 - t); } /** * bounce out.See example. * @version Egret 2.4 * @platform Web,Native * @language en_US */ /** * bounce out。请查看示例 * @version Egret 2.4 * @platform Web,Native * @language zh_CN */ public static bounceOut(t: number) { if (t < 1 / 2.75) { return (7.5625 * t * t); } else if (t < 2 / 2.75) { return (7.5625 * (t -= 1.5 / 2.75) * t + 0.75); } else if (t < 2.5 / 2.75) { return (7.5625 * (t -= 2.25 / 2.75) * t + 0.9375); } else { return (7.5625 * (t -= 2.625 / 2.75) * t + 0.984375); } } /** * bounce in out.See example. * @version Egret 2.4 * @platform Web,Native * @language en_US */ /** * bounce in out。请查看示例 * @version Egret 2.4 * @platform Web,Native * @language zh_CN */ public static bounceInOut(t: number) { if (t < 0.5) return Ease.bounceIn(t * 2) * .5; return Ease.bounceOut(t * 2 - 1) * 0.5 + 0.5; } /** * get elastic in.See example. * @version Egret 2.4 * @platform Web,Native * @language en_US */ /** * get elastic in。请查看示例 * @version Egret 2.4 * @platform Web,Native * @language zh_CN */ public static getElasticIn(amplitude: number, period: number) { let pi2 = Math.PI * 2; return function (t: number) { if (t == 0 || t == 1) return t; let s = period / pi2 * Math.asin(1 / amplitude); return -(amplitude * Math.pow(2, 10 * (t -= 1)) * Math.sin((t - s) * pi2 / period)); } } /** * elastic in.See example. * @version Egret 2.4 * @platform Web,Native * @language en_US */ /** * elastic in。请查看示例 * @version Egret 2.4 * @platform Web,Native * @language zh_CN */ public static elasticIn = Ease.getElasticIn(1, 0.3); /** * get elastic out.See example. * @version Egret 2.4 * @platform Web,Native * @language en_US */ /** * get elastic out。请查看示例 * @version Egret 2.4 * @platform Web,Native * @language zh_CN */ public static getElasticOut(amplitude: number, period: number) { let pi2 = Math.PI * 2; return function (t: number) { if (t == 0 || t == 1) return t; let s = period / pi2 * Math.asin(1 / amplitude); return (amplitude * Math.pow(2, -10 * t) * Math.sin((t - s) * pi2 / period) + 1); } } /** * elastic out.See example. * @version Egret 2.4 * @platform Web,Native * @language en_US */ /** * elastic out。请查看示例 * @version Egret 2.4 * @platform Web,Native * @language zh_CN */ public static elasticOut = Ease.getElasticOut(1, 0.3); /** * get elastic in out.See example. * @version Egret 2.4 * @platform Web,Native * @language en_US */ /** * get elastic in out。请查看示例 * @version Egret 2.4 * @platform Web,Native * @language zh_CN */ public static getElasticInOut(amplitude: number, period: number) { let pi2 = Math.PI * 2; return function (t: number) { let s = period / pi2 * Math.asin(1 / amplitude); if ((t *= 2) < 1) return -0.5 * (amplitude * Math.pow(2, 10 * (t -= 1)) * Math.sin((t - s) * pi2 / period)); return amplitude * Math.pow(2, -10 * (t -= 1)) * Math.sin((t - s) * pi2 / period) * 0.5 + 1; } } /** * elastic in out.See example. * @version Egret 2.4 * @platform Web,Native * @language en_US */ /** * elastic in out。请查看示例 * @version Egret 2.4 * @platform Web,Native * @language zh_CN */ public static elasticInOut = Ease.getElasticInOut(1, 0.3 * 1.5); } }