phaser/dist/phaser.js

A fast, free and fun HTML5 Game Framework for Desktop and Mobile web browsers.

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/* 0 */
/***/ (function(module, exports) {

/**
 * @author       Richard Davey <rich@photonstorm.com>
 * @copyright    2020 Photon Storm Ltd.
 * @license      {@link https://opensource.org/licenses/MIT|MIT License}
 */

//  Taken from klasse by mattdesl https://github.com/mattdesl/klasse

function hasGetterOrSetter (def)
{
    return (!!def.get && typeof def.get === 'function') || (!!def.set && typeof def.set === 'function');
}

function getProperty (definition, k, isClassDescriptor)
{
    //  This may be a lightweight object, OR it might be a property that was defined previously.

    //  For simple class descriptors we can just assume its NOT previously defined.
    var def = (isClassDescriptor) ? definition[k] : Object.getOwnPropertyDescriptor(definition, k);

    if (!isClassDescriptor && def.value && typeof def.value === 'object')
    {
        def = def.value;
    }

    //  This might be a regular property, or it may be a getter/setter the user defined in a class.
    if (def && hasGetterOrSetter(def))
    {
        if (typeof def.enumerable === 'undefined')
        {
            def.enumerable = true;
        }

        if (typeof def.configurable === 'undefined')
        {
            def.configurable = true;
        }

        return def;
    }
    else
    {
        return false;
    }
}

function hasNonConfigurable (obj, k)
{
    var prop = Object.getOwnPropertyDescriptor(obj, k);

    if (!prop)
    {
        return false;
    }

    if (prop.value && typeof prop.value === 'object')
    {
        prop = prop.value;
    }

    if (prop.configurable === false)
    {
        return true;
    }

    return false;
}

/**
 * Extends the given `myClass` object's prototype with the properties of `definition`.
 *
 * @function extend
 * @ignore
 * @param {Object} ctor The constructor object to mix into.
 * @param {Object} definition A dictionary of functions for the class.
 * @param {boolean} isClassDescriptor Is the definition a class descriptor?
 * @param {Object} [extend] The parent constructor object.
 */
function extend (ctor, definition, isClassDescriptor, extend)
{
    for (var k in definition)
    {
        if (!definition.hasOwnProperty(k))
        {
            continue;
        }

        var def = getProperty(definition, k, isClassDescriptor);

        if (def !== false)
        {
            //  If Extends is used, we will check its prototype to see if the final variable exists.

            var parent = extend || ctor;

            if (hasNonConfigurable(parent.prototype, k))
            {
                //  Just skip the final property
                if (Class.ignoreFinals)
                {
                    continue;
                }

                //  We cannot re-define a property that is configurable=false.
                //  So we will consider them final and throw an error. This is by
                //  default so it is clear to the developer what is happening.
                //  You can set ignoreFinals to true if you need to extend a class
                //  which has configurable=false; it will simply not re-define final properties.
                throw new Error('cannot override final property \'' + k + '\', set Class.ignoreFinals = true to skip');
            }

            Object.defineProperty(ctor.prototype, k, def);
        }
        else
        {
            ctor.prototype[k] = definition[k];
        }
    }
}

/**
 * Applies the given `mixins` to the prototype of `myClass`.
 *
 * @function mixin
 * @ignore
 * @param {Object} myClass The constructor object to mix into.
 * @param {Object|Array<Object>} mixins The mixins to apply to the constructor.
 */
function mixin (myClass, mixins)
{
    if (!mixins)
    {
        return;
    }

    if (!Array.isArray(mixins))
    {
        mixins = [ mixins ];
    }

    for (var i = 0; i < mixins.length; i++)
    {
        extend(myClass, mixins[i].prototype || mixins[i]);
    }
}

/**
 * Creates a new class with the given descriptor.
 * The constructor, defined by the name `initialize`,
 * is an optional function. If unspecified, an anonymous
 * function will be used which calls the parent class (if
 * one exists).
 *
 * You can also use `Extends` and `Mixins` to provide subclassing
 * and inheritance.
 *
 * @class Phaser.Class
 * @constructor
 * @param {Object} definition a dictionary of functions for the class
 * @example
 *
 *      var MyClass = new Phaser.Class({
 *
 *          initialize: function() {
 *              this.foo = 2.0;
 *          },
 *
 *          bar: function() {
 *              return this.foo + 5;
 *          }
 *      });
 */
function Class (definition)
{
    if (!definition)
    {
        definition = {};
    }

    //  The variable name here dictates what we see in Chrome debugger
    var initialize;
    var Extends;

    if (definition.initialize)
    {
        if (typeof definition.initialize !== 'function')
        {
            throw new Error('initialize must be a function');
        }

        initialize = definition.initialize;

        //  Usually we should avoid 'delete' in V8 at all costs.
        //  However, its unlikely to make any performance difference
        //  here since we only call this on class creation (i.e. not object creation).
        delete definition.initialize;
    }
    else if (definition.Extends)
    {
        var base = definition.Extends;

        initialize = function ()
        {
            base.apply(this, arguments);
        };
    }
    else
    {
        initialize = function () {};
    }

    if (definition.Extends)
    {
        initialize.prototype = Object.create(definition.Extends.prototype);
        initialize.prototype.constructor = initialize;

        //  For getOwnPropertyDescriptor to work, we need to act directly on the Extends (or Mixin)

        Extends = definition.Extends;

        delete definition.Extends;
    }
    else
    {
        initialize.prototype.constructor = initialize;
    }

    //  Grab the mixins, if they are specified...
    var mixins = null;

    if (definition.Mixins)
    {
        mixins = definition.Mixins;
        delete definition.Mixins;
    }

    //  First, mixin if we can.
    mixin(initialize, mixins);

    //  Now we grab the actual definition which defines the overrides.
    extend(initialize, definition, true, Extends);

    return initialize;
}

Class.extend = extend;
Class.mixin = mixin;
Class.ignoreFinals = false;

module.exports = Class;


/***/ }),
/* 1 */
/***/ (function(module, exports) {

/**
 * @author       Richard Davey <rich@photonstorm.com>
 * @copyright    2020 Photon Storm Ltd.
 * @license      {@link https://opensource.org/licenses/MIT|MIT License}
 */

/**
 * A NOOP (No Operation) callback function.
 *
 * Used internally by Phaser when it's more expensive to determine if a callback exists
 * than it is to just invoke an empty function.
 *
 * @function Phaser.Utils.NOOP
 * @since 3.0.0
 */
var NOOP = function ()
{
    //  NOOP
};

module.exports = NOOP;


/***/ }),
/* 2 */
/***/ (function(module, exports) {

/**
 * @author       Richard Davey <rich@photonstorm.com>
 * @copyright    2020 Photon Storm Ltd.
 * @license      {@link https://opensource.org/licenses/MIT|MIT License}
 */

/**
 * Finds the key within the top level of the {@link source} object, or returns {@link defaultValue}
 *
 * @function Phaser.Utils.Objects.GetFastValue
 * @since 3.0.0
 *
 * @param {object} source - The object to search
 * @param {string} key - The key for the property on source. Must exist at the top level of the source object (no periods)
 * @param {*} [defaultValue] - The default value to use if the key does not exist.
 *
 * @return {*} The value if found; otherwise, defaultValue (null if none provided)
 */
var GetFastValue = function (source, key, defaultValue)
{
    var t = typeof(source);

    if (!source || t === 'number' || t === 'string')
    {
        return defaultValue;
    }
    else if (source.hasOwnProperty(key) && source[key] !== undefined)
    {
        return source[key];
    }
    else
    {
        return defaultValue;
    }
};

module.exports = GetFastValue;


/***/ }),
/* 3 */
/***/ (function(module, exports, __webpack_require__) {

/**
 * @author       Richard Davey <rich@photonstorm.com>
 * @copyright    2020 Photon Storm Ltd.
 * @license      {@link https://opensource.org/licenses/MIT|MIT License}
 */

//  Adapted from [gl-matrix](https://github.com/toji/gl-matrix) by toji
//  and [vecmath](https://github.com/mattdesl/vecmath) by mattdesl

var Class = __webpack_require__(0);
var FuzzyEqual = __webpack_require__(123);

/**
 * @classdesc
 * A representation of a vector in 2D space.
 *
 * A two-component vector.
 *
 * @class Vector2
 * @memberof Phaser.Math
 * @constructor
 * @since 3.0.0
 *
 * @param {number|Phaser.Types.Math.Vector2Like} [x] - The x component, or an object with `x` and `y` properties.
 * @param {number} [y] - The y component.
 */
var Vector2 = new Class({

    initialize:

    function Vector2 (x, y)
    {
        /**
         * The x component of this Vector.
         *
         * @name Phaser.Math.Vector2#x
         * @type {number}
         * @default 0
         * @since 3.0.0
         */
        this.x = 0;

        /**
         * The y component of this Vector.
         *
         * @name Phaser.Math.Vector2#y
         * @type {number}
         * @default 0
         * @since 3.0.0
         */
        this.y = 0;

        if (typeof x === 'object')
        {
            this.x = x.x || 0;
            this.y = x.y || 0;
        }
        else
        {
            if (y === undefined) { y = x; }

            this.x = x || 0;
            this.y = y || 0;
        }
    },

    /**
     * Make a clone of this Vector2.
     *
     * @method Phaser.Math.Vector2#clone
     * @since 3.0.0
     *
     * @return {Phaser.Math.Vector2} A clone of this Vector2.
     */
    clone: function ()
    {
        return new Vector2(this.x, this.y);
    },

    /**
     * Copy the components of a given Vector into this Vector.
     *
     * @method Phaser.Math.Vector2#copy
     * @since 3.0.0
     *
     * @param {Phaser.Math.Vector2} src - The Vector to copy the components from.
     *
     * @return {Phaser.Math.Vector2} This Vector2.
     */
    copy: function (src)
    {
        this.x = src.x || 0;
        this.y = src.y || 0;

        return this;
    },

    /**
     * Set the component values of this Vector from a given Vector2Like object.
     *
     * @method Phaser.Math.Vector2#setFromObject
     * @since 3.0.0
     *
     * @param {Phaser.Types.Math.Vector2Like} obj - The object containing the component values to set for this Vector.
     *
     * @return {Phaser.Math.Vector2} This Vector2.
     */
    setFromObject: function (obj)
    {
        this.x = obj.x || 0;
        this.y = obj.y || 0;

        return this;
    },

    /**
     * Set the `x` and `y` components of the this Vector to the given `x` and `y` values.
     *
     * @method Phaser.Math.Vector2#set
     * @since 3.0.0
     *
     * @param {number} x - The x value to set for this Vector.
     * @param {number} [y=x] - The y value to set for this Vector.
     *
     * @return {Phaser.Math.Vector2} This Vector2.
     */
    set: function (x, y)
    {
        if (y === undefined) { y = x; }

        this.x = x;
        this.y = y;

        return this;
    },

    /**
     * This method is an alias for `Vector2.set`.
     *
     * @method Phaser.Math.Vector2#setTo
     * @since 3.4.0
     *
     * @param {number} x - The x value to set for this Vector.
     * @param {number} [y=x] - The y value to set for this Vector.
     *
     * @return {Phaser.Math.Vector2} This Vector2.
     */
    setTo: function (x, y)
    {
        return this.set(x, y);
    },

    /**
     * Sets the `x` and `y` values of this object from a given polar coordinate.
     *
     * @method Phaser.Math.Vector2#setToPolar
     * @since 3.0.0
     *
     * @param {number} azimuth - The angular coordinate, in radians.
     * @param {number} [radius=1] - The radial coordinate (length).
     *
     * @return {Phaser.Math.Vector2} This Vector2.
     */
    setToPolar: function (azimuth, radius)
    {
        if (radius == null) { radius = 1; }

        this.x = Math.cos(azimuth) * radius;
        this.y = Math.sin(azimuth) * radius;

        return this;
    },

    /**
     * Check whether this Vector is equal to a given Vector.
     *
     * Performs a strict equality check against each Vector's components.
     *
     * @method Phaser.Math.Vector2#equals
     * @since 3.0.0
     *
     * @param {Phaser.Math.Vector2} v - The vector to compare with this Vector.
     *
     * @return {boolean} Whether the given Vector is equal to this Vector.
     */
    equals: function (v)
    {
        return ((this.x === v.x) && (this.y === v.y));
    },

    /**
     * Check whether this Vector is approximately equal to a given Vector.
     *
     * @method Phaser.Math.Vector2#fuzzyEquals
     * @since 3.23.0
     *
     * @param {Phaser.Math.Vector2} v - The vector to compare with this Vector.
     * @param {number} [epsilon=0.0001] - The tolerance value.
     *
     * @return {boolean} Whether both absolute differences of the x and y components are smaller than `epsilon`.
     */
    fuzzyEquals: function (v, epsilon)
    {
        return (FuzzyEqual(this.x, v.x, epsilon) && FuzzyEqual(this.y, v.y, epsilon));
    },

    /**
     * Calculate the angle between this Vector and the positive x-axis, in radians.
     *
     * @method Phaser.Math.Vector2#angle
     * @since 3.0.0
     *
     * @return {number} The angle between this Vector, and the positive x-axis, given in radians.
     */
    angle: function ()
    {
        // computes the angle in radians with respect to the positive x-axis

        var angle = Math.atan2(this.y, this.x);

        if (angle < 0)
        {
            angle += 2 * Math.PI;
        }

        return angle;
    },

    /**
     * Set the angle of this Vector.
     *
     * @method Phaser.Math.Vector2#setAngle
     * @since 3.23.0
     *
     * @param {number} angle - The angle, in radians.
     *
     * @return {Phaser.Math.Vector2} This Vector2.
     */
    setAngle: function (angle)
    {
        return this.setToPolar(angle, this.length());
    },

    /**
     * Add a given Vector to this Vector. Addition is component-wise.
     *
     * @method Phaser.Math.Vector2#add
     * @since 3.0.0
     *
     * @param {Phaser.Math.Vector2} src - The Vector to add to this Vector.
     *
     * @return {Phaser.Math.Vector2} This Vector2.
     */
    add: function (src)
    {
        this.x += src.x;
        this.y += src.y;

        return this;
    },

    /**
     * Subtract the given Vector from this Vector. Subtraction is component-wise.
     *
     * @method Phaser.Math.Vector2#subtract
     * @since 3.0.0
     *
     * @param {Phaser.Math.Vector2} src - The Vector to subtract from this Vector.
     *
     * @return {Phaser.Math.Vector2} This Vector2.
     */
    subtract: function (src)
    {
        this.x -= src.x;
        this.y -= src.y;

        return this;
    },

    /**
     * Perform a component-wise multiplication between this Vector and the given Vector.
     *
     * Multiplies this Vector by the given Vector.
     *
     * @method Phaser.Math.Vector2#multiply
     * @since 3.0.0
     *
     * @param {Phaser.Math.Vector2} src - The Vector to multiply this Vector by.
     *
     * @return {Phaser.Math.Vector2} This Vector2.
     */
    multiply: function (src)
    {
        this.x *= src.x;
        this.y *= src.y;

        return this;
    },

    /**
     * Scale this Vector by the given value.
     *
     * @method Phaser.Math.Vector2#scale
     * @since 3.0.0
     *
     * @param {number} value - The value to scale this Vector by.
     *
     * @return {Phaser.Math.Vector2} This Vector2.
     */
    scale: function (value)
    {
        if (isFinite(value))
        {
            this.x *= value;
            this.y *= value;
        }
        else
        {
            this.x = 0;
            this.y = 0;
        }

        return this;
    },

    /**
     * Perform a component-wise division between this Vector and the given Vector.
     *
     * Divides this Vector by the given Vector.
     *
     * @method Phaser.Math.Vector2#divide
     * @since 3.0.0
     *
     * @param {Phaser.Math.Vector2} src - The Vector to divide this Vector by.
     *
     * @return {Phaser.Math.Vector2} This Vector2.
     */
    divide: function (src)
    {
        this.x /= src.x;
        this.y /= src.y;

        return this;
    },

    /**
     * Negate the `x` and `y` components of this Vector.
     *
     * @method Phaser.Math.Vector2#negate
     * @since 3.0.0
     *
     * @return {Phaser.Math.Vector2} This Vector2.
     */
    negate: function ()
    {
        this.x = -this.x;
        this.y = -this.y;

        return this;
    },

    /**
     * Calculate the distance between this Vector and the given Vector.
     *
     * @method Phaser.Math.Vector2#distance
     * @since 3.0.0
     *
     * @param {Phaser.Math.Vector2} src - The Vector to calculate the distance to.
     *
     * @return {number} The distance from this Vector to the given Vector.
     */
    distance: function (src)
    {
        var dx = src.x - this.x;
        var dy = src.y - this.y;

        return Math.sqrt(dx * dx + dy * dy);
    },

    /**
     * Calculate the distance between this Vector and the given Vector, squared.
     *
     * @method Phaser.Math.Vector2#distanceSq
     * @since 3.0.0
     *
     * @param {Phaser.Math.Vector2} src - The Vector to calculate the distance to.
     *
     * @return {number} The distance from this Vector to the given Vector, squared.
     */
    distanceSq: function (src)
    {
        var dx = src.x - this.x;
        var dy = src.y - this.y;

        return dx * dx + dy * dy;
    },

    /**
     * Calculate the length (or magnitude) of this Vector.
     *
     * @method Phaser.Math.Vector2#length
     * @since 3.0.0
     *
     * @return {number} The length of this Vector.
     */
    length: function ()
    {
        var x = this.x;
        var y = this.y;

        return Math.sqrt(x * x + y * y);
    },

    /**
     * Set the length (or magnitude) of this Vector.
     *
     * @method Phaser.Math.Vector2#setLength
     * @since 3.23.0
     *
     * @param {number} length
     *
     * @return {Phaser.Math.Vector2} This Vector2.
     */
    setLength: function (length)
    {
        return this.normalize().scale(length);
    },

    /**
     * Calculate the length of this Vector squared.
     *
     * @method Phaser.Math.Vector2#lengthSq
     * @since 3.0.0
     *
     * @return {number} The length of this Vector, squared.
     */
    lengthSq: function ()
    {
        var x = this.x;
        var y = this.y;

        return x * x + y * y;
    },

    /**
     * Normalize this Vector.
     *
     * Makes the vector a unit length vector (magnitude of 1) in the same direction.
     *
     * @method Phaser.Math.Vector2#normalize
     * @since 3.0.0
     *
     * @return {Phaser.Math.Vector2} This Vector2.
     */
    normalize: function ()
    {
        var x = this.x;
        var y = this.y;
        var len = x * x + y * y;

        if (len > 0)
        {
            len = 1 / Math.sqrt(len);

            this.x = x * len;
            this.y = y * len;
        }

        return this;
    },

    /**
     * Rotate this Vector to its perpendicular, in the positive direction.
     *
     * @method Phaser.Math.Vector2#normalizeRightHand
     * @since 3.0.0
     *
     * @return {Phaser.Math.Vector2} This Vector2.
     */
    normalizeRightHand: function ()
    {
        var x = this.x;

        this.x = this.y * -1;
        this.y = x;

        return this;
    },

    /**
     * Rotate this Vector to its perpendicular, in the negative direction.
     *
     * @method Phaser.Math.Vector2#normalizeLeftHand
     * @since 3.23.0
     *
     * @return {Phaser.Math.Vector2} This Vector2.
     */
    normalizeLeftHand: function ()
    {
        var x = this.x;

        this.x = this.y;
        this.y = x * -1;

        return this;
    },

    /**
     * Calculate the dot product of this Vector and the given Vector.
     *
     * @method Phaser.Math.Vector2#dot
     * @since 3.0.0
     *
     * @param {Phaser.Math.Vector2} src - The Vector2 to dot product with this Vector2.
     *
     * @return {number} The dot product of this Vector and the given Vector.
     */
    dot: function (src)
    {
        return this.x * src.x + this.y * src.y;
    },

    /**
     * Calculate the cross product of this Vector and the given Vector.
     *
     * @method Phaser.Math.Vector2#cross
     * @since 3.0.0
     *
     * @param {Phaser.Math.Vector2} src - The Vector2 to cross with this Vector2.
     *
     * @return {number} The cross product of this Vector and the given Vector.
     */
    cross: function (src)
    {
        return this.x * src.y - this.y * src.x;
    },

    /**
     * Linearly interpolate between this Vector and the given Vector.
     *
     * Interpolates this Vector towards the given Vector.
     *
     * @method Phaser.Math.Vector2#lerp
     * @since 3.0.0
     *
     * @param {Phaser.Math.Vector2} src - The Vector2 to interpolate towards.
     * @param {number} [t=0] - The interpolation percentage, between 0 and 1.
     *
     * @return {Phaser.Math.Vector2} This Vector2.
     */
    lerp: function (src, t)
    {
        if (t === undefined) { t = 0; }

        var ax = this.x;
        var ay = this.y;

        this.x = ax + t * (src.x - ax);
        this.y = ay + t * (src.y - ay);

        return this;
    },

    /**
     * Transform this Vector with the given Matrix.
     *
     * @method Phaser.Math.Vector2#transformMat3
     * @since 3.0.0
     *
     * @param {Phaser.Math.Matrix3} mat - The Matrix3 to transform this Vector2 with.
     *
     * @return {Phaser.Math.Vector2} This Vector2.
     */
    transformMat3: function (mat)
    {
        var x = this.x;
        var y = this.y;
        var m = mat.val;

        this.x = m[0] * x + m[3] * y + m[6];
        this.y = m[1] * x + m[4] * y + m[7];

        return this;
    },

    /**
     * Transform this Vector with the given Matrix.
     *
     * @method Phaser.Math.Vector2#transformMat4
     * @since 3.0.0
     *
     * @param {Phaser.Math.Matrix4} mat - The Matrix4 to transform this Vector2 with.
     *
     * @return {Phaser.Math.Vector2} This Vector2.
     */
    transformMat4: function (mat)
    {
        var x = this.x;
        var y = this.y;
        var m = mat.val;

        this.x = m[0] * x + m[4] * y + m[12];
        this.y = m[1] * x + m[5] * y + m[13];

        return this;
    },

    /**
     * Make this Vector the zero vector (0, 0).
     *
     * @method Phaser.Math.Vector2#reset
     * @since 3.0.0
     *
     * @return {Phaser.Math.Vector2} This Vector2.
     */
    reset: function ()
    {
        this.x = 0;
        this.y = 0;

        return this;
    },

    /**
     * Limit the length (or magnitude) of this Vector.
     *
     * @method Phaser.Math.Vector2#limit
     * @since 3.23.0
     *
     * @param {number} max - The maximum length.
     *
     * @return {Phaser.Math.Vector2} This Vector2.
     */
    limit: function (max)
    {
        var len = this.length();

        if (len && len > max)
        {
            this.scale(max / len);
        }

        return this;
    },

    /**
     * Reflect this Vector off a line defined by a normal.
     *
     * @method Phaser.Math.Vector2#reflect
     * @since 3.23.0
     *
     * @param {Phaser.Math.Vector2} normal - A vector perpendicular to the line.
     *
     * @return {Phaser.Math.Vector2} This Vector2.
     */
    reflect: function (normal)
    {
        normal = normal.clone().normalize();

        return this.subtract(normal.scale(2 * this.dot(normal)));
    },

    /**
     * Reflect this Vector across another.
     *
     * @method Phaser.Math.Vector2#mirror
     * @since 3.23.0
     *
     * @param {Phaser.Math.Vector2} axis - A vector to reflect across.
     *
     * @return {Phaser.Math.Vector2} This Vector2.
     */
    mirror: function (axis)
    {
        return this.reflect(axis).negate();
    },

    /**
     * Rotate this Vector by an angle amount.
     *
     * @method Phaser.Math.Vector2#rotate
     * @since 3.23.0
     *
     * @param {number} delta - The angle to rotate by, in radians.
     *
     * @return {Phaser.Math.Vector2} This Vector2.
     */
    rotate: function (delta)
    {
        var cos = Math.cos(delta);
        var sin = Math.sin(delta);

        return this.set(cos * this.x - sin * this.y, sin * this.x + cos * this.y);
    }

});

/**
 * A static zero Vector2 for use by reference.
 *
 * This constant is meant for comparison operations and should not be modified directly.
 *
 * @constant
 * @name Phaser.Math.Vector2.ZERO
 * @type {Phaser.Math.Vector2}
 * @since 3.1.0
 */
Vector2.ZERO = new Vector2();

/**
 * A static right Vector2 for use by reference.
 *
 * This constant is meant for comparison operations and should not be modified directly.
 *
 * @constant
 * @name Phaser.Math.Vector2.RIGHT
 * @type {Phaser.Math.Vector2}
 * @since 3.16.0
 */
Vector2.RIGHT = new Vector2(1, 0);

/**
 * A static left Vector2 for use by reference.
 *
 * This constant is meant for comparison operations and should not be modified directly.
 *
 * @constant
 * @name Phaser.Math.Vector2.LEFT
 * @type {Phaser.Math.Vector2}
 * @since 3.16.0
 */
Vector2.LEFT = new Vector2(-1, 0);

/**
 * A static up Vector2 for use by reference.
 *
 * This constant is meant for comparison operations and should not be modified directly.
 *
 * @constant
 * @name Phaser.Math.Vector2.UP
 * @type {Phaser.Math.Vector2}
 * @since 3.16.0
 */
Vector2.UP = new Vector2(0, -1);

/**
 * A static down Vector2 for use by reference.
 *
 * This constant is meant for comparison operations and should not be modified directly.
 *
 * @constant
 * @name Phaser.Math.Vector2.DOWN
 * @type {Phaser.Math.Vector2}
 * @since 3.16.0
 */
Vector2.DOWN = new Vector2(0, 1);

/**
 * A static one Vector2 for use by reference.
 *
 * This constant is meant for comparison operations and should not be modified directly.
 *
 * @constant
 * @name Phaser.Math.Vector2.ONE
 * @type {Phaser.Math.Vector2}
 * @since 3.16.0
 */
Vector2.ONE = new Vector2(1, 1);

module.exports = Vector2;


/***/ }),
/* 4 */
/***/ (function(module, exports, __webpack_require__) {

/**
 * @author       Richard Davey <rich@photonstorm.com>
 * @copyright    2020 Photon Storm Ltd.
 * @license      {@link https://opensource.org/licenses/MIT|MIT License}
 */

var Class = __webpack_require__(0);
var GEOM_CONST = __webpack_require__(55);

/**
 * @classdesc
 * Defines a Point in 2D space, with an x and y component.
 *
 * @class Point
 * @memberof Phaser.Geom
 * @constructor
 * @since 3.0.0
 *
 * @param {number} [x=0] - The x coordinate of this Point.
 * @param {number} [y=x] - The y coordinate of this Point.
 */
var Point = new Class({

    initialize:

    function Point (x, y)
    {
        if (x === undefined) { x = 0; }
        if (y === undefined) { y = x; }

        /**
         * The geometry constant type of this object: `GEOM_CONST.POINT`.
         * Used for fast type comparisons.
         *
         * @name Phaser.Geom.Point#type
         * @type {number}
         * @readonly
         * @since 3.19.0
         */
        this.type = GEOM_CONST.POINT;

        /**
         * The x coordinate of this Point.
         *
         * @name Phaser.Geom.Point#x
         * @type {number}
         * @default 0
         * @since 3.0.0
         */
        this.x = x;

        /**
         * The y coordinate of this Point.
         *
         * @name Phaser.Geom.Point#y
         * @type {number}
         * @default 0
         * @since 3.0.0
         */
        this.y = y;
    },

    /**
     * Set the x and y coordinates of the point to the given values.
     *
     * @method Phaser.Geom.Point#setTo
     * @since 3.0.0
     *
     * @param {number} [x=0] - The x coordinate of this Point.
     * @param {number} [y=x] - The y coordinate of this Point.
     *
     * @return {this} This Point object.
     */
    setTo: function (x, y)
    {
        if (x === undefined) { x = 0; }
        if (y === undefined) { y = x; }

        this.x = x;
        this.y = y;

        return this;
    }

});

module.exports = Point;


/***/ }),
/* 5 */
/***/ (function(module, exports, __webpack_require__) {

/**
 * @author       Richard Davey <rich@photonstorm.com>
 * @copyright    2020 Photon Storm Ltd.
 * @license      {@link https://opensource.org/licenses/MIT|MIT License}
 */

var Class = __webpack_require__(0);
var PluginCache = __webpack_require__(24);
var SceneEvents = __webpack_require__(21);

/**
 * @classdesc
 * The Game Object Factory is a Scene plugin that allows you to quickly create many common
 * types of Game Objects and have them automatically registered with the Scene.
 *
 * Game Objects directly register themselves with the Factory and inject their own creation
 * methods into the class.
 *
 * @class GameObjectFactory
 * @memberof Phaser.GameObjects
 * @constructor
 * @since 3.0.0
 *
 * @param {Phaser.Scene} scene - The Scene to which this Game Object Factory belongs.
 */
var GameObjectFactory = new Class({

    initialize:

    function GameObjectFactory (scene)
    {
        /**
         * The Scene to which this Game Object Factory belongs.
         *
         * @name Phaser.GameObjects.GameObjectFactory#scene
         * @type {Phaser.Scene}
         * @protected
         * @since 3.0.0
         */
        this.scene = scene;

        /**
         * A reference to the Scene.Systems.
         *
         * @name Phaser.GameObjects.GameObjectFactory#systems
         * @type {Phaser.Scenes.Systems}
         * @protected
         * @since 3.0.0
         */
        this.systems = scene.sys;

        /**
         * A reference to the Scene Event Emitter.
         *
         * @name Phaser.GameObjects.GameObjectFactory#events
         * @type {Phaser.Events.EventEmitter}
         * @protected
         * @since 3.50.0
         */
        this.events = scene.sys.events;

        /**
         * A reference to the Scene Display List.
         *
         * @name Phaser.GameObjects.GameObjectFactory#displayList
         * @type {Phaser.GameObjects.DisplayList}
         * @protected
         * @since 3.0.0
         */
        this.displayList;

        /**
         * A reference to the Scene Update List.
         *
         * @name Phaser.GameObjects.GameObjectFactory#updateList
         * @type {Phaser.GameObjects.UpdateList}
         * @protected
         * @since 3.0.0
         */
        this.updateList;

        this.events.once(SceneEvents.BOOT, this.boot, this);
        this.events.on(SceneEvents.START, this.start, this);
    },

    /**
     * This method is called automatically, only once, when the Scene is first created.
     * Do not invoke it directly.
     *
     * @method Phaser.GameObjects.GameObjectFactory#boot
     * @private
     * @since 3.5.1
     */
    boot: function ()
    {
        this.displayList = this.systems.displayList;
        this.updateList = this.systems.updateList;

        this.events.once(SceneEvents.DESTROY, this.destroy, this);
    },

    /**
     * This method is called automatically by the Scene when it is starting up.
     * It is responsible for creating local systems, properties and listening for Scene events.
     * Do not invoke it directly.
     *
     * @method Phaser.GameObjects.GameObjectFactory#start
     * @private
     * @since 3.5.0
     */
    start: function ()
    {
        this.events.once(SceneEvents.SHUTDOWN, this.shutdown, this);
    },

    /**
     * Adds an existing Game Object to this Scene.
     *
     * If the Game Object renders, it will be added to the Display List.
     * If it has a `preUpdate` method, it will be added to the Update List.
     *
     * @method Phaser.GameObjects.GameObjectFactory#existing
     * @since 3.0.0
     *
     * @generic {Phaser.GameObjects.GameObject} G - [child,$return]
     *
     * @param {(Phaser.GameObjects.GameObject|Phaser.GameObjects.Group)} child - The child to be added to this Scene.
     *
     * @return {Phaser.GameObjects.GameObject} The Game Object that was added.
     */
    existing: function (child)
    {
        if (child.renderCanvas || child.renderWebGL)
        {
            this.displayList.add(child);
        }

        //  For when custom objects have overridden `preUpdate` but don't hook into the ADDED_TO_SCENE event:
        //  Adding to the list multiple times is safe, as it won't add duplicates into the list anyway.
        if (child.preUpdate)
        {
            this.updateList.add(child);
        }

        return child;
    },

    /**
     * The Scene that owns this plugin is shutting down.
     * We need to kill and reset all internal properties as well as stop listening to Scene events.
     *
     * @method Phaser.GameObjects.GameObjectFactory#shutdown
     * @private
     * @since 3.0.0
     */
    shutdown: function ()
    {
        this.events.off(SceneEvents.SHUTDOWN, this.shutdown, this);
    },

    /**
     * The Scene that owns this plugin is being destroyed.
     * We need to shutdown and then kill off all external references.
     *
     * @method Phaser.GameObjects.GameObjectFactory#destroy
     * @private
     * @since 3.0.0
     */
    destroy: function ()
    {
        this.shutdown();

        this.events.off(SceneEvents.START, this.start, this);

        this.scene = null;
        this.systems = null;
        this.events = null;

        this.displayList = null;
        this.updateList = null;
    }

});

/**
 * Static method called directly by the Game Object factory functions.
 * With this method you can register a custom GameObject factory in the GameObjectFactory,
 * providing a name (`factoryType`) and the constructor (`factoryFunction`) in order
 * to be called when you call to Phaser.Scene.add[ factoryType ] method.
 *
 * @method Phaser.GameObjects.GameObjectFactory.register
 * @static
 * @since 3.0.0
 *
 * @param {string} factoryType - The key of the factory that you will use to call to Phaser.Scene.add[ factoryType ] method.
 * @param {function} factoryFunction - The constructor function to be called when you invoke to the Phaser.Scene.add method.
 */
GameObjectFactory.register = function (factoryType, factoryFunction)
{
    if (!GameObjectFactory.prototype.hasOwnProperty(factoryType))
    {
        GameObjectFactory.prototype[factoryType] = factoryFunction;
    }
};

/**
 * Static method called directly by the Game Object factory functions.
 * With this method you can remove a custom GameObject factory registered in the GameObjectFactory,
 * providing a its `factoryType`.
 *
 * @method Phaser.GameObjects.GameObjectFactory.remove
 * @static
 * @since 3.0.0
 *
 * @param {string} factoryType - The key of the factory that you want to remove from the GameObjectFactory.
 */
GameObjectFactory.remove = function (factoryType)
{
    if (GameObjectFactory.prototype.hasOwnProperty(factoryType))
    {
        delete GameObjectFactory.prototype[factoryType];
    }
};

PluginCache.register('GameObjectFactory', GameObjectFactory, 'add');

module.exports = GameObjectFactory;


/***/ }),
/* 6 */
/***/ (function(module, exports) {

/**
 * @author       Richard Davey <rich@photonstorm.com>
 * @copyright    2020 Photon Storm Ltd.
 * @license      {@link https://opensource.org/licenses/MIT|MIT License}
 */

//  Source object
//  The key as a string, or an array of keys, i.e. 'banner', or 'banner.hideBanner'
//  The default value to use if the key doesn't exist

/**
 * Retrieves a value from an object.
 *
 * @function Phaser.Utils.Objects.GetValue
 * @since 3.0.0
 *
 * @param {object} source - The object to retrieve the value from.
 * @param {string} key - The name of the property to retrieve from the object. If a property is nested, the names of its preceding properties should be separated by a dot (`.`) - `banner.hideBanner` would return the value of the `hideBanner` property from the object stored in the `banner` property of the `source` object.
 * @param {*} defaultValue - The value to return if the `key` isn't found in the `source` object.
 *
 * @return {*} The value of the requested key.
 */
var GetValue = function (source, key, defaultValue)
{
    if (!source || typeof source === 'number')
    {
        return defaultValue;
    }
    else if (source.hasOwnProperty(key))
    {
        return source[key];
    }
    else if (key.indexOf('.') !== -1)
    {
        var keys = key.split('.');
        var parent = source;
        var value = defaultValue;

        //  Use for loop here so we can break early
        for (var i = 0; i < keys.length; i++)
        {
            if (parent.hasOwnProperty(keys[i]))
            {
                //  Yes it has a key property, let's carry on down
                value = parent[keys[i]];

                parent = parent[keys[i]];
            }
            else
            {
                //  Can't go any further, so reset to default
                value = defaultValue;
                break;
            }
        }

        return value;
    }
    else
    {
        return defaultValue;
    }
};

module.exports = GetValue;


/***/ }),
/* 7 */
/***/ (function(module, exports) {

/**
 * @author       Richard Davey <rich@photonstorm.com>
 * @copyright    2020 Photon Storm Ltd.
 * @license      {@link https://opensource.org/licenses/MIT|MIT License}
 */

/**
 * This is a slightly modified version of jQuery.isPlainObject.
 * A plain object is an object whose internal class property is [object Object].
 *
 * @function Phaser.Utils.Objects.IsPlainObject
 * @since 3.0.0
 *
 * @param {object} obj - The object to inspect.
 *
 * @return {boolean} `true` if the object is plain, otherwise `false`.
 */
var IsPlainObject = function (obj)
{
    // Not plain objects:
    // - Any object or value whose internal [[Class]] property is not "[object Object]"
    // - DOM nodes
    // - window
    if (typeof(obj) !== 'object' || obj.nodeType || obj === obj.window)
    {
        return false;
    }

    // Support: Firefox <20
    // The try/catch suppresses exceptions thrown when attempting to access
    // the "constructor" property of certain host objects, ie. |window.location|
    // https://bugzilla.mozilla.org/show_bug.cgi?id=814622
    try
    {
        if (obj.constructor && !({}).hasOwnProperty.call(obj.constructor.prototype, 'isPrototypeOf'))
        {
            return false;
        }
    }
    catch (e)
    {
        return false;
    }

    // If the function hasn't returned already, we're confident that
    // |obj| is a plain object, created by {} or constructed with new Object
    return true;
};

module.exports = IsPlainObject;


/***/ }),
/* 8 */
/***/ (function(module, exports) {

/**
 * @author       Richard Davey <rich@photonstorm.com>
 * @copyright    2020 Photon Storm Ltd.
 * @license      {@link https://opensource.org/licenses/MIT|MIT License}
 */

var types = {};

/**
 * @namespace Phaser.Loader.FileTypesManager
 */

var FileTypesManager = {

    /**
     * Static method called when a LoaderPlugin is created.
     * 
     * Loops through the local types object and injects all of them as
     * properties into the LoaderPlugin instance.
     *
     * @method Phaser.Loader.FileTypesManager.install
     * @since 3.0.0
     * 
     * @param {Phaser.Loader.LoaderPlugin} loader - The LoaderPlugin to install the types into.
     */
    install: function (loader)
    {
        for (var key in types)
        {
            loader[key] = types[key];
        }
    },

    /**
     * Static method called directly by the File Types.
     * 
     * The key is a reference to the function used to load the files via the Loader, i.e. `image`.
     *
     * @method Phaser.Loader.FileTypesManager.register
     * @since 3.0.0
     * 
     * @param {string} key - The key that will be used as the method name in the LoaderPlugin.
     * @param {function} factoryFunction - The function that will be called when LoaderPlugin.key is invoked.
     */
    register: function (key, factoryFunction)
    {
        types[key] = factoryFunction;
    },

    /**
     * Removed all associated file types.
     *
     * @method Phaser.Loader.FileTypesManager.destroy
     * @since 3.0.0
     */
    destroy: function ()
    {
        types = {};
    }

};

module.exports = FileTypesManager;


/***/ }),
/* 9 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


var has = Object.prototype.hasOwnProperty
  , prefix = '~';

/**
 * Constructor to create a storage for our `EE` objects.
 * An `Events` instance is a plain object whose properties are event names.
 *
 * @constructor
 * @private
 */
function Events() {}

//
// We try to not inherit from `Object.prototype`. In some engines creating an
// instance in this way is faster than calling `Object.create(null)` directly.
// If `Object.create(null)` is not supported we prefix the event names with a
// character to make sure that the built-in object properties are not
// overridden or used as an attack vector.
//
if (Object.create) {
  Events.prototype = Object.create(null);

  //
  // This hack is needed because the `__proto__` property is still inherited in
  // some old browsers like Android 4, iPhone 5.1, Opera 11 and Safari 5.
  //
  if (!new Events().__proto__) prefix = false;
}

/**
 * Representation of a single event listener.
 *
 * @param {Function} fn The listener function.
 * @param {*} context The context to invoke the listener with.
 * @param {Boolean} [once=false] Specify if the listener is a one-time listener.
 * @constructor
 * @private
 */
function EE(fn, context, once) {
  this.fn = fn;
  this.context = context;
  this.once = once || false;
}

/**
 * Add a listener for a given event.
 *
 * @param {EventEmitter} emitter Reference to the `EventEmitter` instance.
 * @param {(String|Symbol)} event The event name.
 * @param {Function} fn The listener function.
 * @param {*} context The context to invoke the listener with.
 * @param {Boolean} once Specify if the listener is a one-time listener.
 * @returns {EventEmitter}
 * @private
 */
function addListener(emitter, event, fn, context, once) {
  if (typeof fn !== 'function') {
    throw new TypeError('The listener must be a function');
  }

  var listener = new EE(fn, context || emitter, once)
    , evt = prefix ? prefix + event : event;

  if (!emitter._events[evt]) emitter._events[evt] = listener, emitter._eventsCount++;
  else if (!emitter._events[evt].fn) emitter._events[evt].push(listener);
  else emitter._events[evt] = [emitter._events[evt], listener];

  return emitter;
}

/**
 * Clear event by name.
 *
 * @param {EventEmitter} emitter Reference to the `EventEmitter` instance.
 * @param {(String|Symbol)} evt The Event name.
 * @private
 */
function clearEvent(emitter, evt) {
  if (--emitter._eventsCount === 0) emitter._events = new Events();
  else delete emitter._events[evt];
}

/**
 * Minimal `EventEmitter` interface that is molded against the Node.js
 * `EventEmitter` interface.
 *
 * @constructor
 * @public
 */
function EventEmitter() {
  this._events = new Events();
  this._eventsCount = 0;
}

/**
 * Return an array listing the events for which the emitter has registered
 * listeners.
 *
 * @returns {Array}
 * @public
 */
EventEmitter.prototype.eventNames = function eventNames() {
  var names = []
    , events
    , name;

  if (this._eventsCount === 0) return names;

  for (name in (events = this._events)) {
    if (has.call(events, name)) names.push(prefix ? name.slice(1) : name);
  }

  if (Object.getOwnPropertySymbols) {
    return names.concat(Object.getOwnPropertySymbols(events));
  }

  return names;
};

/**
 * Return the listeners registered for a given event.
 *
 * @param {(String|Symbol)} event The event name.
 * @returns {Array} The registered listeners.
 * @public
 */
EventEmitter.prototype.listeners = function listeners(event) {
  var evt = prefix ? prefix + event : event
    , handlers = this._events[evt];

  if (!handlers) return [];
  if (handlers.fn) return [handlers.fn];

  for (var i = 0, l = handlers.length, ee = new Array(l); i < l; i++) {
    ee[i] = handlers[i]