/** * The MIT License * -------- * Copyright (c) 2008 ARK-Web * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN * THE SOFTWARE. */ /** * @author Satoshi Saito * * This proguram's easing functions is ported from JSTweener. * * JSTweener - CodeRepos::Share - Trac * http://coderepos.org/share/wiki/JSTweener * * JSTweener's easing functions is ported from Tweener. * * Tweener - Google Code * http://code.google.com/p/tweener/ */ if (Effect.Transitions) { Object.extend( Effect.Transitions, { easeNone: function(pos) { return pos; }, easeInQuad: function(pos) { return pos*pos; }, easeOutQuad: function(pos) { return -(pos)*(pos-2); }, easeInOutQuad: function(pos) { if((t=2*pos) < 1) return 0.5*t*t; return -0.5 *((--t)*(t-2) - 1); }, easeInCubic: function(pos) { return pos*pos*pos; }, easeOutCubic: function(pos) { return (t=pos-1)*t*t + 1; }, easeInOutCubic: function(pos) { if((t=2*pos) < 1) return 0.5*t*t*t; return 0.5*((t-=2)*t*t + 2); }, easeOutInCubic: function(pos) { if(pos < 0.5) return 0.5*Effect.Transitions.easeOutCubic(pos*2); return 0.5+0.5*Effect.Transitions.easeInCubic((pos*2)-1); }, easeInQuart: function(pos) { return pos*pos*pos*pos; }, easeOutQuart: function(pos) { return -((t=pos-1)*t*t*t - 1); }, easeInOutQuart: function(pos) { if((t=2*pos) < 1) return 0.5*t*t*t*t; return -0.5 *((t-=2)*t*t*t - 2); }, easeOutInQuart: function(pos) { if(pos < 0.5) return 0.5*Effect.Transitions.easeOutQuart(pos*2); return 0.5+0.5*Effect.Transitions.easeInQuart((pos*2)-1); }, easeInQuint: function(pos) { return pos*pos*pos*pos*pos; }, easeOutQuint: function(pos) { return (t=pos-1)*t*t*t*t + 1; }, /* easeInOutQuint: function(t, b, c, d) { if((t/=d/2) < 1) return c/2*t*t*t*t*t + b; return c/2*((t-=2)*t*t*t*t + 2) + b; }, easeOutInQuint: function(t, b, c, d) { if(t < d/2) return Effect.Transitions.easeOutQuint(t*2, b, c/2, d); return Effect.Transitions.easeInQuint((t*2)-d, b+c/2, c/2, d); }, easeInSine: function(t, b, c, d) { return -c * Math.cos(t/d *(Math.PI/2)) + c + b; }, */ easeOutSine: function(pos) { return Math.sin(pos *(Math.PI/2)); }, easeInOutSine: function(pos) { return -1/2 *(Math.cos(Math.PI*pos) - 1); }, /* easeOutInSine: function(t, b, c, d) { if(t < d/2) return Effect.Transitions.easeOutSine(t*2, b, c/2, d); return Effect.Transitions.easeInSine((t*2)-d, b+c/2, c/2, d); }, */ easeInExpo: function(pos) { return(pos==0) ? 0 : Math.pow(2, 10 *(pos - 1)) - 0.001; }, easeOutExpo: function(pos) { return(pos==1) ? 1 : 1.001 *(-Math.pow(2, -10 * pos) + 1); }, /* easeInOutExpo: function(t, b, c, d) { if(t==0) return b; if(t==d) return b+c; if((t/=d/2) < 1) return c/2 * Math.pow(2, 10 *(t - 1)) + b - c * 0.0005; return c/2 * 1.0005 *(-Math.pow(2, -10 * --t) + 2) + b; }, easeOutInExpo: function(t, b, c, d) { if(t < d/2) return Effect.Transitions.easeOutExpo(t*2, b, c/2, d); return Effect.Transitions.easeInExpo((t*2)-d, b+c/2, c/2, d); }, */ easeInCirc: function(pos) { return -(Math.sqrt(1 -pos*pos) - 1); }, easeOutCirc: function(pos) { return Math.sqrt(1 -(t=pos-1)*t); }, /* easeInOutCirc: function(t, b, c, d) { if((t/=d/2) < 1) return -c/2 *(Math.sqrt(1 - t*t) - 1) + b; return c/2 *(Math.sqrt(1 -(t-=2)*t) + 1) + b; }, easeOutInCirc: function(t, b, c, d) { if(t < d/2) return Effect.Transitions.easeOutCirc(t*2, b, c/2, d); return Effect.Transitions.easeInCirc((t*2)-d, b+c/2, c/2, d); }, easeInElastic: function(t, b, c, d, a, p) { var s; if(t==0) return b; if((t/=d)==1) return b+c; if(!p) p=d*.3; if(!a || a < Math.abs(c)) { a=c; s=p/4; } else s = p/(2*Math.PI) * Math.asin(c/a); return -(a*Math.pow(2,10*(t-=1)) * Math.sin((t*d-s)*(2*Math.PI)/p )) + b; }, easeOutElastic: function(t, b, c, d, a, p) { var s; if(t==0) return b; if((t/=d)==1) return b+c; if(!p) p=d*.3; if(!a || a < Math.abs(c)) { a=c; s=p/4; } else s = p/(2*Math.PI) * Math.asin(c/a); return(a*Math.pow(2,-10*t) * Math.sin((t*d-s)*(2*Math.PI)/p ) + c + b); }, easeInOutElastic: function(t, b, c, d, a, p) { var s; if(t==0) return b; if((t/=d/2)==2) return b+c; if(!p) p=d*(.3*1.5); if(!a || a < Math.abs(c)) { a=c; s=p/4; } else s = p/(2*Math.PI) * Math.asin(c/a); if(t < 1) return -.5*(a*Math.pow(2,10*(t-=1)) * Math.sin((t*d-s)*(2*Math.PI)/p )) + b; return a*Math.pow(2,-10*(t-=1)) * Math.sin((t*d-s)*(2*Math.PI)/p )*.5 + c + b; }, easeOutInElastic: function(t, b, c, d, a, p) { if(t < d/2) return Effect.Transitions.easeOutElastic(t*2, b, c/2, d, a, p); return Effect.Transitions.easeInElastic((t*2)-d, b+c/2, c/2, d, a, p); }, */ easeInBack: function(pos, s) { if(s == undefined) s = 1.70158; return pos*pos*((s+1)*pos - s); }, easeOutBack: function(pos, s) { if(s == undefined) s = 1.70158; return (t=pos-1)*t*((s+1)*t + s) + 1; }, /* easeInOutBack: function(t, b, c, d, s) { if(s == undefined) s = 1.70158; if((t/=d/2) < 1) return c/2*(t*t*(((s*=(1.525))+1)*t - s)) + b; return c/2*((t-=2)*t*(((s*=(1.525))+1)*t + s) + 2) + b; }, easeOutInBack: function(t, b, c, d, s) { if(t < d/2) return Effect.Transitions.easeOutBack(t*2, b, c/2, d, s); return Effect.Transitions.easeInBack((t*2)-d, b+c/2, c/2, d, s); }, easeInBounce: function(t, b, c, d) { return c - Effect.Transitions.easeOutBounce(d-t, 0, c, d) + b; }, */ easeOutBounce: function(pos) { if((pos) <(1/2.75)) { return 7.5625*pos*pos; } else if(pos <(2/2.75)) { return 7.5625*(pos-=(1.5/2.75))*pos + .75; } else if(pos <(2.5/2.75)) { return 7.5625*(pos-=(2.25/2.75))*pos + .9375; } else { return 7.5625*(pos-=(2.625/2.75))*pos + .984375; } } /*, easeInOutBounce: function(t, b, c, d) { if(t < d/2) return Effect.Transitions.easeInBounce(t*2, 0, c, d) * .5 + b; else return Effect.Transitions.easeOutBounce(t*2-d, 0, c, d) * .5 + c*.5 + b; }, easeOutInBounce: function(t, b, c, d) { if(t < d/2) return Effect.Transitions.easeOutBounce(t*2, b, c/2, d); return Effect.Transitions.easeInBounce((t*2)-d, b+c/2, c/2, d); } */ }); }