Vector

A 2D vector on a plane.

Hierarchy

• Vector
  • VectorView

Implements

• Clonable<Vector>

Index

Constructors

• constructor

Properties

• EQUALS_EPSILON

Accessors

• size
• x
• y
• Down
• Half
• Left
• One
• Right
• Up
• Zero

Methods

• add
• addEqual
• average
• clampMagnitude
• clone
• cross
• distance
• dot
• equals
• negate
• normal
• normalize
• perpendicular
• rotate
• scale
• scaleEqual
• setTo
• squareDistance
• sub
• subEqual
• toAngle
• toString
• cross
• distance
• fromAngle
• isValid
• max
• min

Constructors

constructor

• new Vector(x: number, y: number): Vector

• Parameters

  • x: number

    X component of the Vector

  • y: number

    Y component of the Vector

  Returns Vector

Properties

publicstaticEQUALS_EPSILON

EQUALS_EPSILON: number = 0.001

Get or set the vector equals epsilon, by default 0.001 meaning vectors within that tolerance on x or y will be considered equal.

Accessors

publicsize

• get size(): number
• set size(newLength: number): void

• The size (magnitude) of the Vector

  ---

  Returns number

• Setting the size mutates the current vector

  @warning

  Can be used to set the size of the vector, be very careful using this, mutating vectors can cause hard to find bugs

  ---

  Parameters

  • newLength: number

  Returns void

publicx

• get x(): number
• set x(val: number): void

• Get the x component of the vector

  ---

  Returns number

• Set the x component, THIS MUTATES the current vector. It is usually better to create a new vector.

  @warning

  Be very careful setting components on shared vectors, mutating shared vectors can cause hard to find bugs

  ---

  Parameters

  • val: number

  Returns void

publicy

• get y(): number
• set y(val: number): void

• Get the y component of the vector

  ---

  Returns number

• Set the y component, THIS MUTATES the current vector. It is usually better to create a new vector.

  @warning

  Be very careful setting components on shared vectors, mutating shared vectors can cause hard to find bugs

  ---

  Parameters

  • val: number

  Returns void

publicstaticDown

• get Down(): Vector

• A unit vector pointing down (0, 1)

  ---

  Returns Vector

publicstaticHalf

• get Half(): Vector

• A (0.5, 0.5) vector

  ---

  Returns Vector

publicstaticLeft

• get Left(): Vector

• A unit vector pointing left (-1, 0)

  ---

  Returns Vector

publicstaticOne

• get One(): Vector

• A (1, 1) vector

  ---

  Returns Vector

publicstaticRight

• get Right(): Vector

• A unit vector pointing right (1, 0)

  ---

  Returns Vector

publicstaticUp

• get Up(): Vector

• A unit vector pointing up (0, -1)

  ---

  Returns Vector

publicstaticZero

• get Zero(): Vector

• A (0, 0) vector

  ---

  Returns Vector

Methods

publicadd

• add(v: Vector, dest?: Vector): Vector

• Adds one vector to another

  ---

  Parameters

  • v: Vector

    The vector to add

  • optionaldest: Vector

    Optionally copy the result into a provided vector

  Returns Vector

publicaddEqual

• addEqual(v: Vector): Vector

• Adds one vector to this one modifying the original

  @warning

  Be very careful using this, mutating vectors can cause hard to find bugs

  ---

  Parameters

  • v: Vector

    The vector to add

  Returns Vector

publicaverage

• average(vec: Vector): Vector

• Returns the average (midpoint) between the current point and the specified

  ---

  Parameters

  • vec: Vector

  Returns Vector

publicclampMagnitude

• clampMagnitude(magnitude: number): Vector

• Clamps the current vector's magnitude mutating it

  ---

  Parameters

  • magnitude: number

  Returns Vector

publicclone

• clone(dest?: Vector): Vector

• Implementation of Clonable.clone

  Creates new vector that has the same values as the previous.

  ---

  Parameters

  • optionaldest: Vector

  Returns Vector

publiccross

• cross(v: number): Vector
• cross(v: Vector): number

• Performs a 2D cross product with scalar. 2D cross products with a scalar return a vector.

  ---

  Parameters

  • v: number

    The scalar to cross

  Returns Vector

publicdistance

• distance(v?: Vector): number

• The distance to another vector. If no other Vector is specified, this will return the [[magnitude]].

  ---

  Parameters

  • optionalv: Vector

    The other vector. Leave blank to use origin vector.

  Returns number

publicdot

• dot(v: Vector): number

• Performs a dot product with another vector

  ---

  Parameters

  • v: Vector

    The vector to dot

  Returns number

publicequals

• equals(vector: Vector, tolerance?: number): boolean

• Compares this point against another and tests for equality

  ---

  Parameters

  • vector: Vector

    The other point to compare to

  • tolerance: number = Vector.EQUALS_EPSILON

    Amount of euclidean distance off we are willing to tolerate

  Returns boolean

publicnegate

• negate(): Vector

• Negate the current vector

  ---

  Returns Vector

publicnormal

• normal(): Vector

• Returns the normal vector to this one, same as the perpendicular of length 1

  ---

  Returns Vector

publicnormalize

• normalize(): Vector

• Normalizes a vector to have a magnitude of 1.

  ---

  Returns Vector

publicperpendicular

• perpendicular(): Vector

• Returns the perpendicular vector to this one

  ---

  Returns Vector

publicrotate

• rotate(angle: number, anchor?: Vector, dest?: Vector): Vector

• Rotates the current vector around a point by a certain angle in radians.

  ---

  Parameters

  • angle: number

  • optionalanchor: Vector

  • optionaldest: Vector

  Returns Vector

publicscale

• scale(scale: Vector, dest?: Vector): Vector
• scale(size: number, dest?: Vector): Vector

• Scales a vector's by a factor of size

  ---

  Parameters

  • scale: Vector

  • optionaldest: Vector

    Optionally provide a destination vector for the result

  Returns Vector

publicscaleEqual

• scaleEqual(size: number): Vector

• Scales this vector by a factor of size and modifies the original

  @warning

  Be very careful using this, mutating vectors can cause hard to find bugs

  ---

  Parameters

  • size: number

  Returns Vector

setTo

• setTo(x: number, y: number): void

• Sets the x and y components at once, THIS MUTATES the current vector. It is usually better to create a new vector.

  @warning

  Be very careful using this, mutating vectors can cause hard to find bugs

  ---

  Parameters

  • x: number

  • y: number

  Returns void

publicsquareDistance

• squareDistance(v?: Vector): number

• Parameters

  • optionalv: Vector

  Returns number

publicsub

• sub(v: Vector, dest?: Vector): Vector

• Subtracts a vector from another, if you subtract vector B.sub(A) the resulting vector points from A -> B

  ---

  Parameters

  • v: Vector

    The vector to subtract

  • optionaldest: Vector

  Returns Vector

publicsubEqual

• subEqual(v: Vector): Vector

• Subtracts a vector from this one modifying the original

  @warning

  Be very careful using this, mutating vectors can cause hard to find bugs

  ---

  Parameters

  • v: Vector

    The vector to subtract

  Returns Vector

publictoAngle

• toAngle(): number

• Returns the angle of this vector.

  ---

  Returns number

publictoString

• toString(fixed?: number): string

• Returns a string representation of the vector.

  ---

  Parameters

  • optionalfixed: number

  Returns string

staticcross

• cross(num: number, vec: Vector): Vector

• Parameters

  • num: number

  • vec: Vector

  Returns Vector

publicstaticdistance

• distance(vec1: Vector, vec2: Vector): number

• Calculates distance between two Vectors

  ---

  Parameters

  • vec1: Vector

  • vec2: Vector

  Returns number

publicstaticfromAngle

• fromAngle(angle: number): Vector

• Returns a vector of unit length in the direction of the specified angle in Radians.

  ---

  Parameters

  • angle: number

    The angle to generate the vector

  Returns Vector

publicstaticisValid

• isValid(vec: Vector): boolean

• Checks if vector is not null, undefined, or if any of its components are NaN or Infinity.

  ---

  Parameters

  • vec: Vector

  Returns boolean

publicstaticmax

• max(vec1: Vector, vec2: Vector): Vector

• Parameters

  • vec1: Vector

  • vec2: Vector

  Returns Vector

publicstaticmin

• min(vec1: Vector, vec2: Vector): Vector

• Parameters

  • vec1: Vector

  • vec2: Vector

  Returns Vector