Members

<readonly> angle :number

Gets the angle of the line in radians.

Source - geom/Line.js, line 370

<readonly> bottom :number

Gets the bottom-most point of this line.

Source - geom/Line.js, line 474

end :Phaser.Point

The end point of the line.

Source - geom/Line.js, line 32

<readonly> height :number

Gets the height of this bounds of this line.

Source - geom/Line.js, line 500

<readonly> left :number

Gets the left-most point of this line.

Source - geom/Line.js, line 435

<readonly> length :number

Gets the length of the line segment.

Source - geom/Line.js, line 357

<readonly> normalAngle :number

Gets the angle in radians of the normal of this line (line.angle - 90 degrees.)

Source - geom/Line.js, line 539

<readonly> normalX :number

Gets the x component of the left-hand normal of this line.

Source - geom/Line.js, line 513

<readonly> normalY :number

Gets the y component of the left-hand normal of this line.

Source - geom/Line.js, line 526

<readonly> perpSlope :number

Gets the perpendicular slope of the line (x/y).

Source - geom/Line.js, line 396

<readonly> right :number

Gets the right-most point of this line.

Source - geom/Line.js, line 448

<readonly> slope :number

Gets the slope of the line (y/x).

Source - geom/Line.js, line 383

start :Phaser.Point

The start point of the line.

Source - geom/Line.js, line 27

<readonly> top :number

Gets the top-most point of this line.

Source - geom/Line.js, line 461

<readonly> type :number

The const type of this object.

Source - geom/Line.js, line 38

<readonly> width :number

Gets the width of this bounds of this line.

Source - geom/Line.js, line 487

<readonly> x :number

Gets the x coordinate of the top left of the bounds around this line.

Source - geom/Line.js, line 409

<readonly> y :number

Gets the y coordinate of the top left of the bounds around this line.

Source - geom/Line.js, line 422

Methods

<static> intersects(a, b, asSegment, result) → {Phaser.Point}

Checks for intersection between two lines. If asSegment is true it will check for segment intersection. If asSegment is false it will check for line intersection. Returns the intersection segment of AB and EF as a Point, or null if there is no intersection. Adapted from code by Keith Hair

Parameters:

Name	Type	Argument	Default	Description
a	Phaser.Line			The first Line to be checked.
b	Phaser.Line			The second Line to be checked.
asSegment	boolean	<optional>	true	If true it will check for segment intersection, otherwise full line intersection.
result	Phaser.Point	<optional>		A Point object to store the result in, if not given a new one will be created.

Returns:

Phaser.Point -

The intersection segment of the two lines as a Point, or null if there is no intersection.

Source - geom/Line.js, line 608

<static> intersectsPoints(a, b, e, f, asSegment, result) → {Phaser.Point}

Checks for intersection between two lines as defined by the given start and end points. If asSegment is true it will check for line segment intersection. If asSegment is false it will check for line intersection. Returns the intersection segment of AB and EF as a Point, or null if there is no intersection. Adapted from code by Keith Hair

Parameters:

Name	Type	Argument	Default	Description
a	Phaser.Point			The start of the first Line to be checked.
b	Phaser.Point			The end of the first line to be checked.
e	Phaser.Point			The start of the second Line to be checked.
f	Phaser.Point			The end of the second line to be checked.
asSegment	boolean	<optional>	true	If true it will check for segment intersection, otherwise full line intersection.
result	Phaser.Point | object	<optional>		A Point object to store the result in, if not given a new one will be created.

Returns:

Phaser.Point -

The intersection segment of the two lines as a Point, or null if there is no intersection.

Source - geom/Line.js, line 552

<static> reflect(a, b) → {number}

Returns the reflected angle between two lines. This is the outgoing angle based on the angle of Line 1 and the normalAngle of Line 2.

Parameters:

Name	Type	Description
a	Phaser.Line	The base line.
b	Phaser.Line	The line to be reflected from the base line.

Returns:

number -

The reflected angle in radians.

Source - geom/Line.js, line 628

centerOn(x, y) → {Phaser.Line}

Centers this Line on the given coordinates.

The line is centered by positioning the start and end points so that the lines midpoint matches the coordinates given.

Parameters:

Name	Type	Description
x	number	The x position to center the line on.
y	number	The y position to center the line on.

Returns:

Phaser.Line -

This line object

Source - geom/Line.js, line 198

clone(output) → {Phaser.Line}

Returns a new Line object with the same values for the start and end properties as this Line object.

Parameters:

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

Returns:

Phaser.Line -

The cloned Line object.

Source - geom/Line.js, line 334

coordinatesOnLine(stepRate, results) → {array}

Using Bresenham's line algorithm this will return an array of all coordinates on this line. The start and end points are rounded before this runs as the algorithm works on integers.

Parameters:

Name	Type	Argument	Default	Description
stepRate	number	<optional>	1	How many steps will we return? 1 = every coordinate on the line, 2 = every other coordinate, etc.
results	array	<optional>		The array to store the results in. If not provided a new one will be generated.

Returns:

array -

An array of coordinates.

Source - geom/Line.js, line 276

fromAngle(x, y, angle, length) → {Phaser.Line}

Sets this line to start at the given x and y coordinates and for the segment to extend at angle for the given length.

Parameters:

Name	Type	Description
x	number	The x coordinate of the start of the line.
y	number	The y coordinate of the start of the line.
angle	number	The angle of the line in radians.
length	number	The length of the line in pixels.

Returns:

Phaser.Line -

This line object

Source - geom/Line.js, line 86

fromSprite(startSprite, endSprite, useCenter) → {Phaser.Line}

Sets the line to match the x/y coordinates of the two given sprites. Can optionally be calculated from their center coordinates.

Parameters:

Name	Type	Argument	Default	Description
startSprite	Phaser.Sprite			The coordinates of this Sprite will be set to the Line.start point.
endSprite	Phaser.Sprite			The coordinates of this Sprite will be set to the Line.start point.
useCenter	boolean	<optional>	false	If true it will use startSprite.center.x, if false startSprite.x. Note that Sprites don't have a center property by default, so only enable if you've over-ridden your Sprite with a custom class.

Returns:

Phaser.Line -

This line object

Source - geom/Line.js, line 63

intersects(line, asSegment, result) → {Phaser.Point}

Checks for intersection between this line and another Line. If asSegment is true it will check for segment intersection. If asSegment is false it will check for line intersection. Returns the intersection segment of AB and EF as a Point, or null if there is no intersection.

Parameters:

Name	Type	Argument	Default	Description
line	Phaser.Line			The line to check against this one.
asSegment	boolean	<optional>	true	If true it will check for segment intersection, otherwise full line intersection.
result	Phaser.Point	<optional>		A Point object to store the result in, if not given a new one will be created.

Returns:

Phaser.Point -

The intersection segment of the two lines as a Point, or null if there is no intersection.

Source - geom/Line.js, line 149

midPoint(out) → {Phaser.Point}

Returns a Point object where the x and y values correspond to the center (or midpoint) of the Line segment.

Parameters:

Name	Type	Argument	Description
out	Phaser.Point	<optional>	A Phaser.Point object into which the result will be populated. If not given a new Point object is created.

Returns:

Phaser.Point -

A Phaser.Point object with the x and y values set to the center of the line segment.

Source - geom/Line.js, line 180

pointOnLine(x, y) → {boolean}

Tests if the given coordinates fall on this line. See pointOnSegment to test against just the line segment.

Parameters:

Name	Type	Description
x	number	The line to check against this one.
y	number	The line to check against this one.

Returns:

boolean -

True if the point is on the line, false if not.

Source - geom/Line.js, line 222

pointOnSegment(x, y) → {boolean}

Tests if the given coordinates fall on this line and within the segment. See pointOnLine to test against just the line.

Parameters:

Name	Type	Description
x	number	The line to check against this one.
y	number	The line to check against this one.

Returns:

boolean -

True if the point is on the line and segment, false if not.

Source - geom/Line.js, line 236

random(out) → {Phaser.Point}

Picks a random point from anywhere on the Line segment and returns it.

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 object.

Returns:

Phaser.Point -

An object containing the random point in its x and y properties.

Source - geom/Line.js, line 255

reflect(line) → {number}

Returns the reflected angle between two lines. This is the outgoing angle based on the angle of this line and the normalAngle of the given line.

Parameters:

Name	Type	Description
line	Phaser.Line	The line to reflect off this line.

Returns:

number -

The reflected angle in radians.

Source - geom/Line.js, line 166

rotate(angle, asDegrees) → {Phaser.Line}

Rotates the line by the amount specified in angle.

Rotation takes place from the center of the line. If you wish to rotate around a different point see Line.rotateAround.

If you wish to rotate the ends of the Line then see Line.start.rotate or Line.end.rotate.

Parameters:

Name	Type	Argument	Default	Description
angle	number			The angle in radians (unless asDegrees is true) to rotate the line by.
asDegrees	boolean	<optional>	false	Is the given angle in radians (false) or degrees (true)?

Returns:

Phaser.Line -

This line object

Source - geom/Line.js, line 105

rotateAround(angle, asDegrees) → {Phaser.Line}

Rotates the line by the amount specified in angle.

Rotation takes place around the coordinates given.

Parameters:

Name	Type	Argument	Default	Description
angle	number			The angle in radians (unless asDegrees is true) to rotate the line by.
asDegrees	boolean	<optional>	false	Is the given angle in radians (false) or degrees (true)?

Returns:

Phaser.Line -

This line object

Source - geom/Line.js, line 130

setTo(x1, y1, x2, y2) → {Phaser.Line}

Sets the components of the Line to the specified values.

Parameters:

Name	Type	Argument	Default	Description
x1	number	<optional>	0	The x coordinate of the start of the line.
y1	number	<optional>	0	The y coordinate of the start of the line.
x2	number	<optional>	0	The x coordinate of the end of the line.
y2	number	<optional>	0	The y coordinate of the end of the line.

Returns:

Phaser.Line -

This line object

Source - geom/Line.js, line 44