Class ObservableVector2d

Creates a new ObservableVector3d instance.

Parameters

• x: number = 0

  The x-coordinate of the vector. Default is 0.

• y: number = 0

  The y-coordinate of the vector. Default is 0.

• Optionalcallback: (() => void)

  The callback function to be called when the point changes. Default is undefined.

  • • (): void

    • Returns void

Gets the x-coordinate of the point.

Sets the x-coordinate of the point.

Parameters

• value: number

  The new x-coordinate value.

Gets the y-coordinate of the point.

Sets the y-coordinate of the point.

Parameters

• value: number

  The new y-coordinate value.

Update this vector values to absolute values

Add the passed vector to this vector

Parameters

• v: Vector2d | ObservableVector2d

  other vector

return the angle between this vector and the passed one

Parameters

• v: Vector2d | ObservableVector2d

  other vector

Ceil the vector values

Ceil this vector values

Clamp the vector value within the specified value range

Parameters

• low: number

  minimum component value

• high: number

  maximum component value

Clamp this vector value within the specified value range

Parameters

• low: number

  minimum component value

• high: number

  maximum component value

return a clone copy of this vector

Parameters

• Optionalcb: (() => void)

  callback function to override the clone values

  • • (): void

    • Returns void

Copy the x,y values of the passed vector to this one

Parameters

• v: Vector2d | ObservableVector2d

  other vector

return the cross product of this vector and the passed one

Parameters

• v: Vector2d | ObservableVector2d

  other vector

Calculates the Euclidean distance between this vector and another vector.

Parameters

• v: Vector2d | ObservableVector2d

  The vector to which the distance is calculated.

Example

letv1 = newVector2d(3, 4);
letv2 = newVector2d(6, 8);
v1.distance(v2); // returns 5
Copy

Divide this vector values by the passed value

Parameters

• n: number

  the value to divide the vector by

return the dot product of this vector and the passed one

Parameters

• v: Vector2d | ObservableVector2d

  other vector

Checks if this vector is equal to another vector or a pair of coordinates.

Parameters

• Rest...args: [number, number] | [Vector2d ] | [ObservableVector2d ]

  Either two numbers representing x and y coordinates or a single Vector2d object.

Example

letv1 = newVector2d(3, 4);
letv2 = newVector2d(3, 4);
v1.equals(v2); // returns true
Copy

Example

letv = newVector2d(3, 4);
v.equals(3, 4); // returns true
Copy

Floor the vector values

Floor this vector values

return the length (magnitude) of this vector

return the square length of this vector

Linearly interpolate between this vector and the given one.

Parameters

• v: Vector2d | ObservableVector2d

  other vector

• alpha: number

  distance along the line (alpha = 0 will be this vector, and alpha = 1 will be the given one).

Update this vector with the maximum value between this and the passed vector

Parameters

• v: Vector2d | ObservableVector2d

  other vector

Update this vector with the minimum value between this and the passed vector

Parameters

• v: Vector2d | ObservableVector2d

  other vector

interpolate the position of this vector towards the given one by the given maximum step.

Parameters

• target: Vector2d | ObservableVector2d

  vector to rotate towards

• step: number

  the maximum step per iteration (Negative values will push the vector away from the target)

Negate the vector values

Negate this vector values

normalize this vector (scale the vector so that its magnitude is 1)

change this vector to be perpendicular to what it was before.
(Effectively rotates it 90 degrees in a clockwise direction)

project this vector on to another vector.

Parameters

• v: Vector2d | ObservableVector2d

  The vector to project onto.

Project this vector onto a vector of unit length.
This is slightly more efficient than project when dealing with unit vectors.

Parameters

• v: Vector2d | ObservableVector2d

  The unit vector to project onto.

Revokes the proxy object, preventing further access to the ObservablePoint instance.

Rotate this vector (counter-clockwise) by the specified angle (in radians).

Parameters

• angle: number

  The angle to rotate (in radians)

• Optionalv: Vector2d | ObservableVector2d

  an optional point to rotate around

Multiply this vector values by the given scalar

Parameters

• x: number

  x scale value

• Optionaly: number = x

  y scale value, if not passed, it uses the x value

Multiply this vector values by the passed vector

Parameters

• v: Vector2d | ObservableVector2d

  other vector

Sets the x and y coordinates of the point.

Parameters

• x: number = 0

  The new x-coordinate value.

• y: number = 0

  The new y-coordinate value.

Sets the callback function to be called when the point changes.

Parameters

• callback: (() => void)

  The callback function.

  • • (): void

    • Returns void

Sets the x and y coordinates of the point without triggering the callback.

Parameters

• x: number = 0

  The new x-coordinate value.

• y: number = 0

  The new y-coordinate value.

set the Vector x and y properties using the passed vector

Parameters

• v: Vector2d | ObservableVector2d

  other vector

set the Vector x and y properties to 0

Substract the passed vector to this vector

Parameters

• v: Vector2d | ObservableVector2d

  other vector

Convert this vector into 2d coordinate space

Convert this vector into isometric coordinate space

convert the object to a string representation