/*!
MIT License

Copyright (c) 2011 Max Kueng, George Crabtree
 
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.
*/
!function(e){if("object"==typeof exports)module.exports=e();else if("function"==typeof define&&define.amd)define(e);else{var f;"undefined"!=typeof window?f=window:"undefined"!=typeof global?f=global:"undefined"!=typeof self&&(f=self),f.Victor=e()}}(function(){var define,module,exports;return (function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);throw new Error("Cannot find module '"+o+"'")}var f=n[o]={exports:{}};t[o][0].call(f.exports,function(e){var n=t[o][1][e];return s(n?n:e)},f,f.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(_dereq_,module,exports){
exports = module.exports = Victor;

/**
 * # Victor - A JavaScript 2D vector class with methods for common vector operations
 */

/**
 * Constructor. Will also work without the `new` keyword
 *
 * ### Examples:
 *     var vec1 = new Victor(100, 50);
 *     var vec2 = Victor(42, 1337);
 *
 * @param {Number} x Value of the x axis
 * @param {Number} y Value of the y axis
 * @return {Victor}
 * @api public
 */
function Victor (x, y) {
	if (!(this instanceof Victor)) {
		return new Victor(x, y);
	}

	/**
	 * The X axis
	 *
	 * ### Examples:
	 *     var vec = new Victor.fromArray(42, 21);
	 *
	 *     vec.x;
	 *     // => 42
	 *
	 * @api public
	 */
	this.x = x || 0;

	/**
	 * The Y axis
	 *
	 * ### Examples:
	 *     var vec = new Victor.fromArray(42, 21);
	 *
	 *     vec.y;
	 *     // => 21
	 *
	 * @api public
	 */
	this.y = y || 0;
};

/**
 * # Static
 */

/**
 * Creates a new instance from an array
 *
 * ### Examples:
 *     var vec = Victor.fromArray([42, 21]);
 *
 *     vec.toString();
 *     // => x:42, y:21
 *
 * @name Victor.fromArray
 * @param {Array} array Array with the x and y values at index 0 and 1 respectively
 * @return {Victor} The new instance
 * @api public
 */
Victor.fromArray = function (arr) {
	return new Victor(arr[0] || 0, arr[1] || 0);
};

/**
 * Creates a new instance from an object
 *
 * ### Examples:
 *     var vec = Victor.fromObject({ x: 42, y: 21 });
 *
 *     vec.toString();
 *     // => x:42, y:21
 *
 * @name Victor.fromObject
 * @param {Object} obj Object with the values for x and y
 * @return {Victor} The new instance
 * @api public
 */
Victor.fromObject = function (obj) {
	return new Victor(obj.x || 0, obj.y || 0);
};

/**
 * # Manipulation
 *
 * These functions are chainable.
 */

/**
 * Adds another vector's X axis to this one
 *
 * ### Examples:
 *     var vec1 = new Victor(10, 10);
 *     var vec2 = new Victor(20, 30);
 *
 *     vec1.addX(vec2);
 *     vec1.toString();
 *     // => x:30, y:10
 *
 * @param {Victor} vector The other vector you want to add to this one
 * @return {Victor} `this` for chaining capabilities
 * @api public
 */
Victor.prototype.addX = function (vec) {
	this.x += vec.x;
	return this;
};

/**
 * Adds another vector's Y axis to this one
 *
 * ### Examples:
 *     var vec1 = new Victor(10, 10);
 *     var vec2 = new Victor(20, 30);
 *
 *     vec1.addY(vec2);
 *     vec1.toString();
 *     // => x:10, y:40
 *
 * @param {Victor} vector The other vector you want to add to this one
 * @return {Victor} `this` for chaining capabilities
 * @api public
 */
Victor.prototype.addY = function (vec) {
	this.y += vec.y;
	return this;
};

/**
 * Adds another vector to this one
 *
 * ### Examples:
 *     var vec1 = new Victor(10, 10);
 *     var vec2 = new Victor(20, 30);
 *
 *     vec1.add(vec2);
 *     vec1.toString();
 *     // => x:30, y:40
 *
 * @param {Victor} vector The other vector you want to add to this one
 * @return {Victor} `this` for chaining capabilities
 * @api public
 */
Victor.prototype.add = function (vec) {
	this.x += vec.x;
	this.y += vec.y;
	return this;
};

/**
 * Adds the given scalar to both vector axis
 *
 * ### Examples:
 *     var vec = new Victor(1, 2);
 *
 *     vec.addScalar(2);
 *     vec.toString();
 *     // => x: 3, y: 4
 *
 * @param {Number} scalar The scalar to add
 * @return {Victor} `this` for chaining capabilities
 * @api public
 */
Victor.prototype.addScalar = function (scalar) {
	this.x += scalar;
	this.y += scalar;
	return this;
};

/**
 * Adds the given scalar to the X axis
 *
 * ### Examples:
 *     var vec = new Victor(1, 2);
 *
 *     vec.addScalarX(2);
 *     vec.toString();
 *     // => x: 3, y: 2
 *
 * @param {Number} scalar The scalar to add
 * @return {Victor} `this` for chaining capabilities
 * @api public
 */
Victor.prototype.addScalarX = function (scalar) {
	this.x += scalar;
	return this;
};

/**
 * Adds the given scalar to the Y axis
 *
 * ### Examples:
 *     var vec = new Victor(1, 2);
 *
 *     vec.addScalarY(2);
 *     vec.toString();
 *     // => x: 1, y: 4
 *
 * @param {Number} scalar The scalar to add
 * @return {Victor} `this` for chaining capabilities
 * @api public
 */
Victor.prototype.addScalarY = function (scalar) {
	this.y += scalar;
	return this;
};

/**
 * Subtracts the X axis of another vector from this one
 *
 * ### Examples:
 *     var vec1 = new Victor(100, 50);
 *     var vec2 = new Victor(20, 30);
 *
 *     vec1.subtractX(vec2);
 *     vec1.toString();
 *     // => x:80, y:50
 *
 * @param {Victor} vector The other vector you want subtract from this one
 * @return {Victor} `this` for chaining capabilities
 * @api public
 */
Victor.prototype.subtractX = function (vec) {
	this.x -= vec.x;
	return this;
};

/**
 * Subtracts the Y axis of another vector from this one
 *
 * ### Examples:
 *     var vec1 = new Victor(100, 50);
 *     var vec2 = new Victor(20, 30);
 *
 *     vec1.subtractY(vec2);
 *     vec1.toString();
 *     // => x:100, y:20
 *
 * @param {Victor} vector The other vector you want subtract from this one
 * @return {Victor} `this` for chaining capabilities
 * @api public
 */
Victor.prototype.subtractY = function (vec) {
	this.y -= vec.y;
	return this;
};

/**
 * Subtracts another vector from this one
 *
 * ### Examples:
 *     var vec1 = new Victor(100, 50);
 *     var vec2 = new Victor(20, 30);
 *
 *     vec1.subtract(vec2);
 *     vec1.toString();
 *     // => x:80, y:20
 *
 * @param {Victor} vector The other vector you want subtract from this one
 * @return {Victor} `this` for chaining capabilities
 * @api public
 */
Victor.prototype.subtract = function (vec) {
	this.x -= vec.x;
	this.y -= vec.y;
	return this;
};

/**
 * Subtracts the given scalar from both axis
 *
 * ### Examples:
 *     var vec = new Victor(100, 200);
 *
 *     vec.subtractScalar(20);
 *     vec.toString();
 *     // => x: 80, y: 180
 *
 * @param {Number} scalar The scalar to subtract
 * @return {Victor} `this` for chaining capabilities
 * @api public
 */
Victor.prototype.subtractScalar = function (scalar) {
	this.x -= scalar;
	this.y -= scalar;
	return this;
};

/**
 * Subtracts the given scalar from the X axis
 *
 * ### Examples:
 *     var vec = new Victor(100, 200);
 *
 *     vec.subtractScalarX(20);
 *     vec.toString();
 *     // => x: 80, y: 200
 *
 * @param {Number} scalar The scalar to subtract
 * @return {Victor} `this` for chaining capabilities
 * @api public
 */
Victor.prototype.subtractScalarX = function (scalar) {
	this.x -= scalar;
	return this;
};

/**
 * Subtracts the given scalar from the Y axis
 *
 * ### Examples:
 *     var vec = new Victor(100, 200);
 *
 *     vec.subtractScalarY(20);
 *     vec.toString();
 *     // => x: 100, y: 180
 *
 * @param {Number} scalar The scalar to subtract
 * @return {Victor} `this` for chaining capabilities
 * @api public
 */
Victor.prototype.subtractScalarY = function (scalar) {
	this.y -= scalar;
	return this;
};

/**
 * Divides the X axis by the x component of given vector
 *
 * ### Examples:
 *     var vec = new Victor(100, 50);
 *     var vec2 = new Victor(2, 0);
 *
 *     vec.divideX(vec2);
 *     vec.toString();
 *     // => x:50, y:50
 *
 * @param {Victor} vector The other vector you want divide by
 * @return {Victor} `this` for chaining capabilities
 * @api public
 */
Victor.prototype.divideX = function (vector) {
	this.x /= vector.x;
	return this;
};

/**
 * Divides the Y axis by the y component of given vector
 *
 * ### Examples:
 *     var vec = new Victor(100, 50);
 *     var vec2 = new Victor(0, 2);
 *
 *     vec.divideY(vec2);
 *     vec.toString();
 *     // => x:100, y:25
 *
 * @param {Victor} vector The other vector you want divide by
 * @return {Victor} `this` for chaining capabilities
 * @api public
 */
Victor.prototype.divideY = function (vector) {
	this.y /= vector.y;
	return this;
};

/**
 * Divides both vector axis by a axis values of given vector
 *
 * ### Examples:
 *     var vec = new Victor(100, 50);
 *     var vec2 = new Victor(2, 2);
 *
 *     vec.divide(vec2);
 *     vec.toString();
 *     // => x:50, y:25
 *
 * @param {Victor} vector The vector to divide by
 * @return {Victor} `this` for chaining capabilities
 * @api public
 */
Victor.prototype.divide = function (vector) {
	this.x /= vector.x;
	this.y /= vector.y;
	return this;
};

/**
 * Divides both vector axis by the given scalar value
 *
 * ### Examples:
 *     var vec = new Victor(100, 50);
 *
 *     vec.divideScalar(2);
 *     vec.toString();
 *     // => x:50, y:25
 *
 * @param {Number} The scalar to divide by
 * @return {Victor} `this` for chaining capabilities
 * @api public
 */
Victor.prototype.divideScalar = function (scalar) {
	if (scalar !== 0) {
		this.x /= scalar;
		this.y /= scalar;
	} else {
		this.x = 0;
		this.y = 0;
	}

	return this;
};

/**
 * Divides the X axis by the given scalar value
 *
 * ### Examples:
 *     var vec = new Victor(100, 50);
 *
 *     vec.divideScalarX(2);
 *     vec.toString();
 *     // => x:50, y:50
 *
 * @param {Number} The scalar to divide by
 * @return {Victor} `this` for chaining capabilities
 * @api public
 */
Victor.prototype.divideScalarX = function (scalar) {
	if (scalar !== 0) {
		this.x /= scalar;
	} else {
		this.x = 0;
	}
	return this;
};

/**
 * Divides the Y axis by the given scalar value
 *
 * ### Examples:
 *     var vec = new Victor(100, 50);
 *
 *     vec.divideScalarY(2);
 *     vec.toString();
 *     // => x:100, y:25
 *
 * @param {Number} The scalar to divide by
 * @return {Victor} `this` for chaining capabilities
 * @api public
 */
Victor.prototype.divideScalarY = function (scalar) {
	if (scalar !== 0) {
		this.y /= scalar;
	} else {
		this.y = 0;
	}
	return this;
};

/**
 * Inverts the X axis
 *
 * ### Examples:
 *     var vec = new Victor(100, 50);
 *
 *     vec.invertX();
 *     vec.toString();
 *     // => x:-100, y:50
 *
 * @return {Victor} `this` for chaining capabilities
 * @api public
 */
Victor.prototype.invertX = function () {
	this.x *= -1;
	return this;
};

/**
 * Inverts the Y axis
 *
 * ### Examples:
 *     var vec = new Victor(100, 50);
 *
 *     vec.invertY();
 *     vec.toString();
 *     // => x:100, y:-50
 *
 * @return {Victor} `this` for chaining capabilities
 * @api public
 */
Victor.prototype.invertY = function () {
	this.y *= -1;
	return this;
};

/**
 * Inverts both axis
 *
 * ### Examples:
 *     var vec = new Victor(100, 50);
 *
 *     vec.invert();
 *     vec.toString();
 *     // => x:-100, y:-50
 *
 * @return {Victor} `this` for chaining capabilities
 * @api public
 */
Victor.prototype.invert = function () {
	this.invertX();
	this.invertY();
	return this;
};

/**
 * Multiplies the X axis by X component of given vector
 *
 * ### Examples:
 *     var vec = new Victor(100, 50);
 *     var vec2 = new Victor(2, 0);
 *
 *     vec.multiplyX(vec2);
 *     vec.toString();
 *     // => x:200, y:50
 *
 * @param {Victor} vector The vector to multiply the axis with
 * @return {Victor} `this` for chaining capabilities
 * @api public
 */
Victor.prototype.multiplyX = function (vector) {
	this.x *= vector.x;
	return this;
};

/**
 * Multiplies the Y axis by Y component of given vector
 *
 * ### Examples:
 *     var vec = new Victor(100, 50);
 *     var vec2 = new Victor(0, 2);
 *
 *     vec.multiplyX(vec2);
 *     vec.toString();
 *     // => x:100, y:100
 *
 * @param {Victor} vector The vector to multiply the axis with
 * @return {Victor} `this` for chaining capabilities
 * @api public
 */
Victor.prototype.multiplyY = function (vector) {
	this.y *= vector.y;
	return this;
};

/**
 * Multiplies both vector axis by values from a given vector
 *
 * ### Examples:
 *     var vec = new Victor(100, 50);
 *     var vec2 = new Victor(2, 2);
 *
 *     vec.multiply(vec2);
 *     vec.toString();
 *     // => x:200, y:100
 *
 * @param {Victor} vector The vector to multiply by
 * @return {Victor} `this` for chaining capabilities
 * @api public
 */
Victor.prototype.multiply = function (vector) {
	this.x *= vector.x;
	this.y *= vector.y;
	return this;
};

/**
 * Multiplies both vector axis by the given scalar value
 *
 * ### Examples:
 *     var vec = new Victor(100, 50);
 *
 *     vec.multiplyScalar(2);
 *     vec.toString();
 *     // => x:200, y:100
 *
 * @param {Number} The scalar to multiply by
 * @return {Victor} `this` for chaining capabilities
 * @api public
 */
Victor.prototype.multiplyScalar = function (scalar) {
	this.x *= scalar;
	this.y *= scalar;
	return this;
};

/**
 * Multiplies the X axis by the given scalar
 *
 * ### Examples:
 *     var vec = new Victor(100, 50);
 *
 *     vec.multiplyScalarX(2);
 *     vec.toString();
 *     // => x:200, y:50
 *
 * @param {Number} The scalar to multiply the axis with
 * @return {Victor} `this` for chaining capabilities
 * @api public
 */
Victor.prototype.multiplyScalarX = function (scalar) {
	this.x *= scalar;
	return this;
};

/**
 * Multiplies the Y axis by the given scalar
 *
 * ### Examples:
 *     var vec = new Victor(100, 50);
 *
 *     vec.multiplyScalarY(2);
 *     vec.toString();
 *     // => x:100, y:100
 *
 * @param {Number} The scalar to multiply the axis with
 * @return {Victor} `this` for chaining capabilities
 * @api public
 */
Victor.prototype.multiplyScalarY = function (scalar) {
	this.y *= scalar;
	return this;
};

/**
 * Normalize
 *
 * @return {Victor} `this` for chaining capabilities
 * @api public
 */
Victor.prototype.normalize = function () {
	var length = this.length();

	if (length === 0) {
		this.x = 1;
		this.y = 0;
	} else {
		this.divide(Victor(length, length));
	}
	return this;
};

Victor.prototype.norm = Victor.prototype.normalize;

/**
 * If the absolute vector axis is greater than `max`, multiplies the axis by `factor`
 *
 * ### Examples:
 *     var vec = new Victor(100, 50);
 *
 *     vec.limit(80, 0.9);
 *     vec.toString();
 *     // => x:90, y:50
 *
 * @param {Number} max The maximum value for both x and y axis
 * @param {Number} factor Factor by which the axis are to be multiplied with
 * @return {Victor} `this` for chaining capabilities
 * @api public
 */
Victor.prototype.limit = function (max, factor) {
	if (Math.abs(this.x) > max){ this.x *= factor; }
	if (Math.abs(this.y) > max){ this.y *= factor; }
	return this;
};

/**
 * Randomizes both vector axis with a value between 2 vectors
 *
 * ### Examples:
 *     var vec = new Victor(100, 50);
 *
 *     vec.randomize(new Victor(50, 60), new Victor(70, 80`));
 *     vec.toString();
 *     // => x:67, y:73
 *
 * @param {Victor} topLeft first vector
 * @param {Victor} bottomRight second vector
 * @return {Victor} `this` for chaining capabilities
 * @api public
 */
Victor.prototype.randomize = function (topLeft, bottomRight) {
	this.randomizeX(topLeft, bottomRight);
	this.randomizeY(topLeft, bottomRight);

	return this;
};

/**
 * Randomizes the y axis with a value between 2 vectors
 *
 * ### Examples:
 *     var vec = new Victor(100, 50);
 *
 *     vec.randomizeX(new Victor(50, 60), new Victor(70, 80`));
 *     vec.toString();
 *     // => x:55, y:50
 *
 * @param {Victor} topLeft first vector
 * @param {Victor} bottomRight second vector
 * @return {Victor} `this` for chaining capabilities
 * @api public
 */
Victor.prototype.randomizeX = function (topLeft, bottomRight) {
	var min = Math.min(topLeft.x, bottomRight.x);
	var max = Math.max(topLeft.x, bottomRight.x);
	this.x = random(min, max);
	return this;
};

/**
 * Randomizes the y axis with a value between 2 vectors
 *
 * ### Examples:
 *     var vec = new Victor(100, 50);
 *
 *     vec.randomizeY(new Victor(50, 60), new Victor(70, 80`));
 *     vec.toString();
 *     // => x:100, y:66
 *
 * @param {Victor} topLeft first vector
 * @param {Victor} bottomRight second vector
 * @return {Victor} `this` for chaining capabilities
 * @api public
 */
Victor.prototype.randomizeY = function (topLeft, bottomRight) {
	var min = Math.min(topLeft.y, bottomRight.y);
	var max = Math.max(topLeft.y, bottomRight.y);
	this.y = random(min, max);
	return this;
};

/**
 * Randomly randomizes either axis between 2 vectors
 *
 * ### Examples:
 *     var vec = new Victor(100, 50);
 *
 *     vec.randomizeAny(new Victor(50, 60), new Victor(70, 80));
 *     vec.toString();
 *     // => x:100, y:77
 *
 * @param {Victor} topLeft first vector
 * @param {Victor} bottomRight second vector
 * @return {Victor} `this` for chaining capabilities
 * @api public
 */
Victor.prototype.randomizeAny = function (topLeft, bottomRight) {
	if (!! Math.round(Math.random())) {
		this.randomizeX(topLeft, bottomRight);
	} else {
		this.randomizeY(topLeft, bottomRight);
	}
	return this;
};

/**
 * Rounds both axis to an integer value
 *
 * ### Examples:
 *     var vec = new Victor(100.2, 50.9);
 *
 *     vec.unfloat();
 *     vec.toString();
 *     // => x:100, y:51
 *
 * @return {Victor} `this` for chaining capabilities
 * @api public
 */
Victor.prototype.unfloat = function () {
	this.x = Math.round(this.x);
	this.y = Math.round(this.y);
	return this;
};

/**
 * Rounds both axis to a certain precision
 *
 * ### Examples:
 *     var vec = new Victor(100.2, 50.9);
 *
 *     vec.unfloat();
 *     vec.toString();
 *     // => x:100, y:51
 *
 * @param {Number} Precision (default: 8)
 * @return {Victor} `this` for chaining capabilities
 * @api public
 */
Victor.prototype.toFixed = function (precision) {
	if (typeof precision === 'undefined') { precision = 8; }
	this.x = this.x.toFixed(precision);
	this.y = this.y.toFixed(precision);
	return this;
};

/**
 * Performs a linear blend / interpolation of the X axis towards another vector
 *
 * ### Examples:
 *     var vec1 = new Victor(100, 100);
 *     var vec2 = new Victor(200, 200);
 *
 *     vec1.mixX(vec2, 0.5);
 *     vec.toString();
 *     // => x:150, y:100
 *
 * @param {Victor} vector The other vector
 * @param {Number} amount The blend amount (optional, default: 0.5)
 * @return {Victor} `this` for chaining capabilities
 * @api public
 */
Victor.prototype.mixX = function (vec, amount) {
	if (typeof amount === 'undefined') {
		amount = 0.5;
	}

	this.x = (1 - amount) * this.x + amount * vec.x;
	return this;
};

/**
 * Performs a linear blend / interpolation of the Y axis towards another vector
 *
 * ### Examples:
 *     var vec1 = new Victor(100, 100);
 *     var vec2 = new Victor(200, 200);
 *
 *     vec1.mixY(vec2, 0.5);
 *     vec.toString();
 *     // => x:100, y:150
 *
 * @param {Victor} vector The other vector
 * @param {Number} amount The blend amount (optional, default: 0.5)
 * @return {Victor} `this` for chaining capabilities
 * @api public
 */
Victor.prototype.mixY = function (vec, amount) {
	if (typeof amount === 'undefined') {
		amount = 0.5;
	}

	this.y = (1 - amount) * this.y + amount * vec.y;
	return this;
};

/**
 * Performs a linear blend / interpolation towards another vector
 *
 * ### Examples:
 *     var vec1 = new Victor(100, 100);
 *     var vec2 = new Victor(200, 200);
 *
 *     vec1.mix(vec2, 0.5);
 *     vec.toString();
 *     // => x:150, y:150
 *
 * @param {Victor} vector The other vector
 * @param {Number} amount The blend amount (optional, default: 0.5)
 * @return {Victor} `this` for chaining capabilities
 * @api public
 */
Victor.prototype.mix = function (vec, amount) {
	this.mixX(vec, amount);
	this.mixY(vec, amount);
	return this;
};

/**
 * # Products
 */

/**
 * Creates a clone of this vector
 *
 * ### Examples:
 *     var vec1 = new Victor(10, 10);
 *     var vec2 = vec1.clone();
 *
 *     vec2.toString();
 *     // => x:10, y:10
 *
 * @return {Victor} A clone of the vector
 * @api public
 */
Victor.prototype.clone = function () {
	return new Victor(this.x, this.y);
};

/**
 * Copies another vector's X component in to its own
 *
 * ### Examples:
 *     var vec1 = new Victor(10, 10);
 *     var vec2 = new Victor(20, 20);
 *     var vec2 = vec1.copyX(vec1);
 *
 *     vec2.toString();
 *     // => x:20, y:10
 *
 * @return {Victor} `this` for chaining capabilities
 * @api public
 */
Victor.prototype.copyX = function (vec) {
	this.x = vec.x;
	return this;
};

/**
 * Copies another vector's Y component in to its own
 *
 * ### Examples:
 *     var vec1 = new Victor(10, 10);
 *     var vec2 = new Victor(20, 20);
 *     var vec2 = vec1.copyY(vec1);
 *
 *     vec2.toString();
 *     // => x:10, y:20
 *
 * @return {Victor} `this` for chaining capabilities
 * @api public
 */
Victor.prototype.copyY = function (vec) {
	this.y = vec.y;
	return this;
};

/**
 * Copies another vector's X and Y components in to its own
 *
 * ### Examples:
 *     var vec1 = new Victor(10, 10);
 *     var vec2 = new Victor(20, 20);
 *     var vec2 = vec1.copy(vec1);
 *
 *     vec2.toString();
 *     // => x:20, y:20
 *
 * @return {Victor} `this` for chaining capabilities
 * @api public
 */
Victor.prototype.copy = function (vec) {
	this.copyX(vec);
	this.copyY(vec);
	return this;
};

/**
 * Sets the vector to zero (0,0)
 *
 * ### Examples:
 *     var vec1 = new Victor(10, 10);
 *		 var1.zero();
 *     vec1.toString();
 *     // => x:0, y:0
 *
 * @return {Victor} `this` for chaining capabilities
 * @api public
 */
Victor.prototype.zero = function () {
	this.x = this.y = 0;
	return this;
};

/**
 * Calculates the dot product of this vector and another
 *
 * ### Examples:
 *     var vec1 = new Victor(100, 50);
 *     var vec2 = new Victor(200, 60);
 *
 *     vec1.dot(vec2);
 *     // => 23000
 *
 * @param {Victor} vector The second vector
 * @return {Number} Dot product
 * @api public
 */
Victor.prototype.dot = function (vec2) {
	return this.x * vec2.x + this.y * vec2.y;
};

Victor.prototype.cross = function (vec2) {
	return (this.x * vec2.y ) - (this.y * vec2.x );
};

/**
 * Projects a vector onto another vector, setting itself to the result.
 *
 * ### Examples:
 *     var vec = new Victor(100, 0);
 *     var vec2 = new Victor(100, 100);
 *
 *     vec.projectOnto(vec2);
 *     vec.toString();
 *     // => x:50, y:50
 *
 * @param {Victor} vector The other vector you want to project this vector onto
 * @return {Victor} `this` for chaining capabilities
 * @api public
 */
Victor.prototype.projectOnto = function (vec2) {
    var coeff = ( (this.x * vec2.x)+(this.y * vec2.y) ) / ((vec2.x*vec2.x)+(vec2.y*vec2.y));
    this.x = coeff * vec2.x;
    this.y = coeff * vec2.y;
    return this;
};


Victor.prototype.horizontalAngle = function () {
	return Math.atan2(this.y, this.x);
};

Victor.prototype.horizontalAngleDeg = function () {
	return radian2degrees(this.horizontalAngle());
};

Victor.prototype.verticalAngle = function () {
	return Math.atan2(this.x, this.y);
};

Victor.prototype.verticalAngleDeg = function () {
	return radian2degrees(this.verticalAngle());
};

Victor.prototype.angle = Victor.prototype.horizontalAngle;
Victor.prototype.angleDeg = Victor.prototype.horizontalAngleDeg;
Victor.prototype.direction = Victor.prototype.horizontalAngle;

Victor.prototype.rotate = function (angle) {
	var nx = (this.x * Math.cos(angle)) - (this.y * Math.sin(angle));
	var ny = (this.x * Math.sin(angle)) + (this.y * Math.cos(angle));

	this.x = nx;
	this.y = ny;

	return this;
};

Victor.prototype.rotateDeg = function (angle) {
	angle = degrees2radian(angle);
	return this.rotate(angle);
};

Victor.prototype.rotateTo = function(rotation) {
	return this.rotate(rotation-this.angle());
};

Victor.prototype.rotateToDeg = function(rotation) {
	rotation = degrees2radian(rotation);
	return this.rotateTo(rotation);
};

Victor.prototype.rotateBy = function (rotation) {
	var angle = this.angle() + rotation;

	return this.rotate(angle);
};

Victor.prototype.rotateByDeg = function (rotation) {
	rotation = degrees2radian(rotation);
	return this.rotateBy(rotation);
};

/**
 * Calculates the distance of the X axis between this vector and another
 *
 * ### Examples:
 *     var vec1 = new Victor(100, 50);
 *     var vec2 = new Victor(200, 60);
 *
 *     vec1.distanceX(vec2);
 *     // => -100
 *
 * @param {Victor} vector The second vector
 * @return {Number} Distance
 * @api public
 */
Victor.prototype.distanceX = function (vec) {
	return this.x - vec.x;
};

/**
 * Same as `distanceX()` but always returns an absolute number
 *
 * ### Examples:
 *     var vec1 = new Victor(100, 50);
 *     var vec2 = new Victor(200, 60);
 *
 *     vec1.absDistanceX(vec2);
 *     // => 100
 *
 * @param {Victor} vector The second vector
 * @return {Number} Absolute distance
 * @api public
 */
Victor.prototype.absDistanceX = function (vec) {
	return Math.abs(this.distanceX(vec));
};

/**
 * Calculates the distance of the Y axis between this vector and another
 *
 * ### Examples:
 *     var vec1 = new Victor(100, 50);
 *     var vec2 = new Victor(200, 60);
 *
 *     vec1.distanceY(vec2);
 *     // => -10
 *
 * @param {Victor} vector The second vector
 * @return {Number} Distance
 * @api public
 */
Victor.prototype.distanceY = function (vec) {
	return this.y - vec.y;
};

/**
 * Same as `distanceY()` but always returns an absolute number
 *
 * ### Examples:
 *     var vec1 = new Victor(100, 50);
 *     var vec2 = new Victor(200, 60);
 *
 *     vec1.distanceY(vec2);
 *     // => 10
 *
 * @param {Victor} vector The second vector
 * @return {Number} Absolute distance
 * @api public
 */
Victor.prototype.absDistanceY = function (vec) {
	return Math.abs(this.distanceY(vec));
};

/**
 * Calculates the euclidean distance between this vector and another
 *
 * ### Examples:
 *     var vec1 = new Victor(100, 50);
 *     var vec2 = new Victor(200, 60);
 *
 *     vec1.distance(vec2);
 *     // => 100.4987562112089
 *
 * @param {Victor} vector The second vector
 * @return {Number} Distance
 * @api public
 */
Victor.prototype.distance = function (vec) {
	return Math.sqrt(this.distanceSq(vec));
};

/**
 * Calculates the squared euclidean distance between this vector and another
 *
 * ### Examples:
 *     var vec1 = new Victor(100, 50);
 *     var vec2 = new Victor(200, 60);
 *
 *     vec1.distanceSq(vec2);
 *     // => 10100
 *
 * @param {Victor} vector The second vector
 * @return {Number} Distance
 * @api public
 */
Victor.prototype.distanceSq = function (vec) {
	var dx = this.distanceX(vec),
		dy = this.distanceY(vec);

	return dx * dx + dy * dy;
};

/**
 * Calculates the length or magnitude of the vector
 *
 * ### Examples:
 *     var vec = new Victor(100, 50);
 *
 *     vec.length();
 *     // => 111.80339887498948
 *
 * @return {Number} Length / Magnitude
 * @api public
 */
Victor.prototype.length = function () {
	return Math.sqrt(this.lengthSq());
};

/**
 * Squared length / magnitude
 *
 * ### Examples:
 *     var vec = new Victor(100, 50);
 *
 *     vec.lengthSq();
 *     // => 12500
 *
 * @return {Number} Length / Magnitude
 * @api public
 */
Victor.prototype.lengthSq = function () {
	return this.x * this.x + this.y * this.y;
};

Victor.prototype.magnitude = Victor.prototype.length;

/**
 * Returns a true if vector is (0, 0)
 *
 * ### Examples:
 *     var vec = new Victor(100, 50);
 *     vec.zero();
 *
 *     // => true
 *
 * @return {Boolean}
 * @api public
 */
Victor.prototype.isZero = function() {
	return this.x === 0 && this.y === 0;
};

/**
 * Returns a true if this vector is the same as another
 *
 * ### Examples:
 *     var vec1 = new Victor(100, 50);
 *     var vec2 = new Victor(100, 50);
 *     vec1.isEqualTo(vec2);
 *
 *     // => true
 *
 * @return {Boolean}
 * @api public
 */
Victor.prototype.isEqualTo = function(vec2) {
	return this.x === vec2.x && this.y === vec2.y;
};

/**
 * # Utility Methods
 */

/**
 * Returns an string representation of the vector
 *
 * ### Examples:
 *     var vec = new Victor(10, 20);
 *
 *     vec.toString();
 *     // => x:10, y:20
 *
 * @return {String}
 * @api public
 */
Victor.prototype.toString = function () {
	return 'x:' + this.x + ', y:' + this.y;
};

/**
 * Returns an array representation of the vector
 *
 * ### Examples:
 *     var vec = new Victor(10, 20);
 *
 *     vec.toArray();
 *     // => [10, 20]
 *
 * @return {Array}
 * @api public
 */
Victor.prototype.toArray = function () {
	return [ this.x, this.y ];
};

/**
 * Returns an object representation of the vector
 *
 * ### Examples:
 *     var vec = new Victor(10, 20);
 *
 *     vec.toObject();
 *     // => { x: 10, y: 20 }
 *
 * @return {Object}
 * @api public
 */
Victor.prototype.toObject = function () {
	return { x: this.x, y: this.y };
};


var degrees = 180 / Math.PI;

function random (min, max) {
    return Math.floor(Math.random() * (max - min + 1) + min);
}

function radian2degrees (rad) {
	return rad * degrees;
}

function degrees2radian (deg) {
	return deg / degrees;
}

},{}]},{},[1])
(1)
});