Vector2D.min.js

!function(a,b){"function"==typeof define&&define.amd?define([],b):a.Vector2D=b()}(this,function(){return Vector2D=function(){function a(a,b){this.x=a||0,this.y=b||0}var b,c,d,e,f;for(f=["add","subtract","multiply","divide","dot","equals"],c=function(b){return a[b]=function(a,c){return a.duplicate()[b](c)}},d=0,e=f.length;e>d;d++)b=f[d],c(b);return a.lerp=function(a,b,c){return b.duplicate().subtract(a).multiply(c).add(a)},a.fromAngle=function(b){return new a(Math.cos(b),Math.sin(b))},a.random=function(){return new a.fromAngle(Math.floor(Math.random()*(2*Math.PI-0+1))+0)},a.prototype.zero=function(){return this.x=this.y=0,this},a.prototype.abs=function(){return this.x=Math.abs(this.x),this.y=Math.abs(this.y),this},a.prototype.duplicate=function(){return new a(this.x,this.y)},a.prototype.clone=a.prototype.duplicate,a.prototype.magnitude=function(){return Math.sqrt(this.x*this.x+this.y*this.y)},a.prototype.length=a.prototype.magnitude,a.prototype.negative=function(){return this.multiply(-1)},a.prototype.reverse=a.prototype.negative,a.prototype.normalize=function(){var a=this.magnitude();return a>0&&this.divide(a),this},a.prototype.unit=a.prototype.normalize,a.prototype.limit=function(a){return this.magnitude()>a?(this.normalize(),this.multiply(a)):this},a.prototype.heading=function(){return-1*Math.atan2(-1*this.y,this.x)},a.prototype.eucl_distance=function(a){var b,c;return b=this.x-a.x,c=this.y-a.y,Math.sqrt(b*b+c*c)},a.prototype.distance=function(a,b){var c,d;return null===b&&(b=!1),c=Math.abs(this.x-a.x),d=Math.abs(this.y-a.y),b&&(c=c<b.width/2?c:b.width-c,d=d<b.height/2?d:b.height-d),Math.sqrt(c*c+d*d)},a.prototype.add=function(a){return this.x+=a.x,this.y+=a.y,this},a.prototype.subtract=function(a){return this.x-=a.x,this.y-=a.y,this},a.prototype.multiply=function(a){return this.x=this.x*a,this.y=this.y*a,this},a.prototype.divide=function(a){return this.x=this.x/a,this.y=this.y/a,this},a.prototype.dot=function(a){return this.x*a.x+this.y*a.y},a.prototype.lerp=function(a,b){return this.x=this.x+b*(a.x-this.x),this.y=this.y+b*(a.y-this.y),this},a.prototype.projectOnto=function(a){return a.duplicate().multiply(this.dot(a))},a.prototype.wrapRelativeTo=function(a,b){var c,d,e,f,g,h;g=this.duplicate(),h={x:"width",y:"height"};for(c in h)e=h[c],d=this[c]-a[c],f=b[e],Math.abs(d)>f/2&&(g[c]=d>0?-1*(f-this[c]):this[c]+f);return g},a.prototype.equals=function(a){return this.x==a.x&&this.y==a.y},a.prototype.invalid=function(){return 1/0===this.x||isNaN(this.x)||1/0===this.y||isNaN(this.y)},a}(),Vector2D});