dist/melonjs.js
function angle(v) {
         return Math.acos(me.Math.clamp(this.dotProduct(v) / (this.length() * v.length()), -1, 1));
       }
function angle(v) {
         return Math.acos(me.Math.clamp(this.dotProduct(v) / (this.length() * v.length()), -1, 1));
       }
function angle ( v ) { return Math . acos ( me . Math . clamp ( this . dotProduct ( v ) / ( this . length ( ) * v . length ( ) ) , - 1 , 1 ) ) ; }
return the angle between this vector and the passed one
@name angle
@memberOf me.Vector2d
@function
@param {me.Vector2d} v
@return {Number} angle in radians
return the angle between this vector and the passed one