Members

<readonly>area :number

The area of this Circle.

Source - geom/Circle.js, line 412

bottom :number

The sum of the y and radius properties. Changing the bottom property of a Circle object has no effect on the x and y properties, but does change the diameter. Gets or sets the bottom of the circle.

Y和半径属性的总和。更改圆对象的底部属性对X和Y属性没有影响，但会更改直径。获取或设置圆的底端。

Source - geom/Circle.js, line 385

diameter :number

The largest distance between any two points on the circle. The same as the radius * 2. Gets or sets the diameter of the circle.

圆上任意两点之间的最大距离。与半径*2相同。获取或设置圆的直径。

Source - geom/Circle.js, line 258

empty :boolean

Determines whether or not this Circle object is empty. Will return a value of true if the Circle objects diameter is less than or equal to 0; otherwise false. If set to true it will reset all of the Circle objects properties to 0. A Circle object is empty if its diameter is less than or equal to 0. Gets or sets the empty state of the circle.

确定此圆对象是否为空。如果圆对象直径小于或等于0，则返回值“真”；否则返回值“假”。如果设置为真，它会将所有圆对象属性重置为0。如果圆形对象的直径小于或等于0，则该对象为空。获取或设置圆的空状态。

Source - geom/Circle.js, line 435

left

The x coordinate of the leftmost point of the circle. Changing the left property of a Circle object has no effect on the x and y properties. However it does affect the diameter, whereas changing the x value does not affect the diameter property.

圆最左边点的X坐标。更改圆对象的左属性对X和Y属性没有影响。但是，它会影响直径，而更改X值不会影响直径属性。

Source - geom/Circle.js, line 304

radius :number

The length of a line extending from the center of the circle to any point on the circle itself. The same as half the diameter. Gets or sets the radius of the circle.

Source - geom/Circle.js, line 281

right :number

The x coordinate of the rightmost point of the circle. Changing the right property of a Circle object has no effect on the x and y properties. However it does affect the diameter, whereas changing the x value does not affect the diameter property. Gets or sets the value of the rightmost point of the circle.

Source - geom/Circle.js, line 331

top :number

The sum of the y minus the radius property. Changing the top property of a Circle object has no effect on the x and y properties, but does change the diameter. Gets or sets the top of the circle.

Source - geom/Circle.js, line 358

<readonly>type :number

The const type of this object.

Source - geom/Circle.js, line 54

x :number

The x coordinate of the center of the circle.

Source - geom/Circle.js, line 26

y :number

The y coordinate of the center of the circle.

Source - geom/Circle.js, line 31

Methods

<static>circumferencePoint (a, angle, asDegrees, out) → { Phaser.Point}

Returns a Point object containing the coordinates of a point on the circumference of the Circle based on the given angle.

Parameters:

Name	Type	Argument	Default	Description
a	Phaser.Circle			The first Circle object.
angle	number			The angle in radians (unless asDegrees is true) to return the point from.
asDegrees	boolean	<optional>	false	Is the given angle in radians (false) or degrees (true)?
out	Phaser.Point	<optional>		An optional Point object to put the result in to. If none specified a new Point object will be created.

Returns:

Phaser.Point-

The Point object holding the result.

Source - geom/Circle.js, line 506

<static>contains (a, x, y) → {boolean}

Return true if the given x/y coordinates are within the Circle object.

Parameters:

Name	Type	Description
a	Phaser.Circle	The Circle to be checked.
x	number	The X value of the coordinate to test.
y	number	The Y value of the coordinate to test.

Returns:

boolean-

True if the coordinates are within this circle, otherwise false.

Source - geom/Circle.js, line 458

<static>equals (a, b) → {boolean}

Determines whether the two Circle objects match. This method compares the x, y and diameter properties.

Parameters:

Name	Type	Description
a	Phaser.Circle	The first Circle object.
b	Phaser.Circle	The second Circle object.

Returns:

boolean-

A value of true if the object has exactly the same values for the x, y and diameter properties as this Circle object; otherwise false.

Source - geom/Circle.js, line 483

<static>intersects (a, b) → {boolean}

Determines whether the two Circle objects intersect. This method checks the radius distances between the two Circle objects to see if they intersect.

Parameters:

Name	Type	Description
a	Phaser.Circle	The first Circle object.
b	Phaser.Circle	The second Circle object.

Returns:

boolean-

A value of true if the specified object intersects with this Circle object; otherwise false.

Source - geom/Circle.js, line 494

<static>intersectsRectangle (c, r) → {boolean}

Checks if the given Circle and Rectangle objects intersect.

Parameters:

Name	Type	Description
c	Phaser.Circle	The Circle object to test.
r	Phaser.Rectangle	The Rectangle object to test.

Returns:

boolean-

True if the two objects intersect, otherwise false.

Source - geom/Circle.js, line 532

circumference () → {number}

The circumference of the circle.

Returns:

number-

The circumference of the circle.

Source - geom/Circle.js, line 60

circumferencePoint (angle, asDegrees, out) → { Phaser.Point}

Returns a Point object containing the coordinates of a point on the circumference of the Circle based on the given angle.

Parameters:

Name	Type	Argument	Default	Description
angle	number			The angle in radians (unless asDegrees is true) to return the point from.
asDegrees	boolean	<optional>	false	Is the given angle in radians (false) or degrees (true)?
out	Phaser.Point	<optional>		An optional Point object to put the result in to. If none specified a new Point object will be created.

Returns:

Phaser.Point-

The Point object holding the result.

Source - geom/Circle.js, line 205

clone (output) → { Phaser.Circle}

Returns a new Circle object with the same values for the x, y, width, and height properties as this Circle object.

Parameters:

Name	Type	Description
output	Phaser.Circle	Optional Circle object. If given the values will be set into the object, otherwise a brand new Circle object will be created and returned.

Returns:

Phaser.Circle-

The cloned Circle object.

Source - geom/Circle.js, line 171

contains (x, y) → {boolean}

Return true if the given x/y coordinates are within this Circle object.

Parameters:

Name	Type	Description
x	number	The X value of the coordinate to test.
y	number	The Y value of the coordinate to test.

Returns:

boolean-

True if the coordinates are within this circle, otherwise false.

Source - geom/Circle.js, line 192

copyFrom (source) → {Circle}

Copies the x, y and diameter properties from any given object to this Circle.

Parameters:

Name	Type	Description
source	any	The object to copy from.

Returns:

Circle-

This Circle object.

Source - geom/Circle.js, line 128

copyTo (dest) → {object}

Copies the x, y and diameter properties from this Circle to any given object.

Parameters:

Name	Type	Description
dest	any	The object to copy to.

Returns:

object-

This dest object.

Source - geom/Circle.js, line 140

distance (dest, round) → {number}

Returns the distance from the center of the Circle object to the given object (can be Circle, Point or anything with x/y properties)

Parameters:

Name	Type	Argument	Default	Description
dest	object			The target object. Must have visible x and y properties that represent the center of the object.
round	boolean	<optional>	false	Round the distance to the nearest integer.

Returns:

number-

The distance between this Point object and the destination Point object.

Source - geom/Circle.js, line 156

getBounds () → { Phaser.Rectangle}

Returns the framing rectangle of the circle as a Phaser.Rectangle object.

Returns:

Phaser.Rectangle-

The bounds of the Circle.

Source - geom/Circle.js, line 97

offset (dx, dy) → {Circle}

Adjusts the location of the Circle object, as determined by its center coordinate, by the specified amounts.

Parameters:

Name	Type	Description
dx	number	Moves the x value of the Circle object by this amount.
dy	number	Moves the y value of the Circle object by this amount.

Returns:

Circle-

This Circle object.

Source - geom/Circle.js, line 219

offsetPoint (point) → {Circle}

Adjusts the location of the Circle object using a Point object as a parameter. This method is similar to the Circle.offset() method, except that it takes a Point object as a parameter.

Parameters:

Name	Type	Description
point	Point	A Point object to use to offset this Circle object (or any valid object with exposed x and y properties).

Returns:

Circle-

This Circle object.

Source - geom/Circle.js, line 235

random ( out) → { Phaser.Point}

Returns a uniformly distributed random point from anywhere within this Circle.

Parameters:

Name	Type	Argument	Description
out	Phaser.Point| object	<optional>	A Phaser.Point, or any object with public x/y properties, that the values will be set in. If no object is provided a new Phaser.Point object will be created. In high performance areas avoid this by re-using an existing object.

Returns:

Phaser.Point-

An object containing the random point in its xand yproperties.

Source - geom/Circle.js, line 72

setTo (x, y, diameter) → {Circle}

Sets the members of Circle to the specified values.

Parameters:

Name	Type	Description
x	number	The x coordinate of the center of the circle.
y	number	The y coordinate of the center of the circle.
diameter	number	The diameter of the circle.

Returns:

Circle-

This circle object.

Source - geom/Circle.js, line 109

toString () → {string}

Returns a string representation of this object.

Returns:

string-

a string representation of the instance.

Source - geom/Circle.js, line 245