new Circle(x, y, diameter)
Creates a new Circle object with the center coordinate specified by the x and y parameters and the diameter specified by the diameter parameter. If you call this function without parameters, a circle with x, y, diameter and radius properties set to 0 is created.
Parameters:
Name | Type | Argument | Default | Description |
---|---|---|---|---|
x |
number |
<optional> |
0 | The x coordinate of the center of the circle. |
y |
number |
<optional> |
0 | The y coordinate of the center of the circle. |
diameter |
number |
<optional> |
0 | The diameter of the circle. |
- Source - geom/Circle.js, line 17
Members
-
<readonly> area :number
-
The area of this Circle.
- Source - geom/Circle.js, line 378
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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.
- Source - geom/Circle.js, line 351
-
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.
- Source - geom/Circle.js, line 225
-
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.
- Source - geom/Circle.js, line 401
-
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.
- Source - geom/Circle.js, line 270
-
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 247
-
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 297
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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 324
-
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:
The Point object holding the result.
- Source - geom/Circle.js, line 472
-
<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 424
-
<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 449
-
<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 460
-
<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 498
-
circumference() → {number}
-
The circumference of the circle.
Returns:
number -- Source - geom/Circle.js, line 58
-
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:
The Point object holding the result.
- Source - geom/Circle.js, line 172
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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:
The cloned Circle object.
- Source - geom/Circle.js, line 138
-
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 159
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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 95
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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 107
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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 123
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getBounds() → {Phaser.Rectangle}
-
Returns the framing rectangle of the circle as a Phaser.Rectangle object
Returns:
The bounds of the Circle.
- Source - geom/Circle.js, line 67
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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 186
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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 202
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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 76
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toString() → {string}
-
Returns a string representation of this object.
Returns:
string -a string representation of the instance.
- Source - geom/Circle.js, line 212