Module: vec2

2 Dimensional Vector
Source:

Methods

(static) add(out, a, b) → {vec2}

Adds two vec2's
Parameters:
Name Type Description
out vec2 the receiving vector
a vec2 the first operand
b vec2 the second operand
Source:
Returns:
out
Type
vec2

(static) angle(a, b) → {Number}

Get the angle between two 2D vectors
Parameters:
Name Type Description
a vec2 The first operand
b vec2 The second operand
Source:
Returns:
The angle in radians
Type
Number

(static) ceil(out, a) → {vec2}

Math.ceil the components of a vec2
Parameters:
Name Type Description
out vec2 the receiving vector
a vec2 vector to ceil
Source:
Returns:
out
Type
vec2

(static) clone(a) → {vec2}

Creates a new vec2 initialized with values from an existing vector
Parameters:
Name Type Description
a vec2 vector to clone
Source:
Returns:
a new 2D vector
Type
vec2

(static) copy(out, a) → {vec2}

Copy the values from one vec2 to another
Parameters:
Name Type Description
out vec2 the receiving vector
a vec2 the source vector
Source:
Returns:
out
Type
vec2

(static) create() → {vec2}

Creates a new, empty vec2
Source:
Returns:
a new 2D vector
Type
vec2

(static) cross(out, a, b) → {vec3}

Computes the cross product of two vec2's Note that the cross product must by definition produce a 3D vector
Parameters:
Name Type Description
out vec3 the receiving vector
a vec2 the first operand
b vec2 the second operand
Source:
Returns:
out
Type
vec3

(static) dist()

Alias for vec2.distance
Source:

(static) distance(a, b) → {Number}

Calculates the euclidian distance between two vec2's
Parameters:
Name Type Description
a vec2 the first operand
b vec2 the second operand
Source:
Returns:
distance between a and b
Type
Number

(static) div()

Alias for vec2.divide
Source:

(static) divide(out, a, b) → {vec2}

Divides two vec2's
Parameters:
Name Type Description
out vec2 the receiving vector
a vec2 the first operand
b vec2 the second operand
Source:
Returns:
out
Type
vec2

(static) dot(a, b) → {Number}

Calculates the dot product of two vec2's
Parameters:
Name Type Description
a vec2 the first operand
b vec2 the second operand
Source:
Returns:
dot product of a and b
Type
Number

(static) equals(a, b) → {Boolean}

Returns whether or not the vectors have approximately the same elements in the same position.
Parameters:
Name Type Description
a vec2 The first vector.
b vec2 The second vector.
Source:
Returns:
True if the vectors are equal, false otherwise.
Type
Boolean

(static) exactEquals(a, b) → {Boolean}

Returns whether or not the vectors exactly have the same elements in the same position (when compared with ===)
Parameters:
Name Type Description
a vec2 The first vector.
b vec2 The second vector.
Source:
Returns:
True if the vectors are equal, false otherwise.
Type
Boolean

(static) floor(out, a) → {vec2}

Math.floor the components of a vec2
Parameters:
Name Type Description
out vec2 the receiving vector
a vec2 vector to floor
Source:
Returns:
out
Type
vec2

(static) forEach(a, stride, offset, count, fn, argopt) → {Array}

Perform some operation over an array of vec2s.
Parameters:
Name Type Attributes Description
a Array the array of vectors to iterate over
stride Number Number of elements between the start of each vec2. If 0 assumes tightly packed
offset Number Number of elements to skip at the beginning of the array
count Number Number of vec2s to iterate over. If 0 iterates over entire array
fn function Function to call for each vector in the array
arg Object <optional>
 additional argument to pass to fn
Source:
Returns:
a
Type
Array

(static) fromValues(x, y) → {vec2}

Creates a new vec2 initialized with the given values
Parameters:
Name Type Description
x Number X component
y Number Y component
Source:
Returns:
a new 2D vector
Type
vec2

(static) inverse(out, a) → {vec2}

Returns the inverse of the components of a vec2
Parameters:
Name Type Description
out vec2 the receiving vector
a vec2 vector to invert
Source:
Returns:
out
Type
vec2

(static) len()

Alias for vec2.length
Source:

(static) length(a) → {Number}

Calculates the length of a vec2
Parameters:
Name Type Description
a vec2 vector to calculate length of
Source:
Returns:
length of a
Type
Number

(static) lerp(out, a, b, t) → {vec2}

Performs a linear interpolation between two vec2's
Parameters:
Name Type Description
out vec2 the receiving vector
a vec2 the first operand
b vec2 the second operand
t Number interpolation amount, in the range [0-1], between the two inputs
Source:
Returns:
out
Type
vec2

(static) max(out, a, b) → {vec2}

Returns the maximum of two vec2's
Parameters:
Name Type Description
out vec2 the receiving vector
a vec2 the first operand
b vec2 the second operand
Source:
Returns:
out
Type
vec2

(static) min(out, a, b) → {vec2}

Returns the minimum of two vec2's
Parameters:
Name Type Description
out vec2 the receiving vector
a vec2 the first operand
b vec2 the second operand
Source:
Returns:
out
Type
vec2

(static) mul()

Alias for vec2.multiply
Source:

(static) multiply(out, a, b) → {vec2}

Multiplies two vec2's
Parameters:
Name Type Description
out vec2 the receiving vector
a vec2 the first operand
b vec2 the second operand
Source:
Returns:
out
Type
vec2

(static) negate(out, a) → {vec2}

Negates the components of a vec2
Parameters:
Name Type Description
out vec2 the receiving vector
a vec2 vector to negate
Source:
Returns:
out
Type
vec2

(static) normalize(out, a) → {vec2}

Normalize a vec2
Parameters:
Name Type Description
out vec2 the receiving vector
a vec2 vector to normalize
Source:
Returns:
out
Type
vec2

(static) random(out, scaleopt) → {vec2}

Generates a random vector with the given scale
Parameters:
Name Type Attributes Description
out vec2 the receiving vector
scale Number <optional>
 Length of the resulting vector. If ommitted, a unit vector will be returned
Source:
Returns:
out
Type
vec2

(static) rotate(out, a, b, c) → {vec2}

Rotate a 2D vector
Parameters:
Name Type Description
out vec2 The receiving vec2
a vec2 The vec2 point to rotate
b vec2 The origin of the rotation
c Number The angle of rotation
Source:
Returns:
out
Type
vec2

(static) round(out, a) → {vec2}

Math.round the components of a vec2
Parameters:
Name Type Description
out vec2 the receiving vector
a vec2 vector to round
Source:
Returns:
out
Type
vec2

(static) scale(out, a, b) → {vec2}

Scales a vec2 by a scalar number
Parameters:
Name Type Description
out vec2 the receiving vector
a vec2 the vector to scale
b Number amount to scale the vector by
Source:
Returns:
out
Type
vec2

(static) scaleAndAdd(out, a, b, scale) → {vec2}

Adds two vec2's after scaling the second operand by a scalar value
Parameters:
Name Type Description
out vec2 the receiving vector
a vec2 the first operand
b vec2 the second operand
scale Number the amount to scale b by before adding
Source:
Returns:
out
Type
vec2

(static) set(out, x, y) → {vec2}

Set the components of a vec2 to the given values
Parameters:
Name Type Description
out vec2 the receiving vector
x Number X component
y Number Y component
Source:
Returns:
out
Type
vec2

(static) sqrDist()

Alias for vec2.squaredDistance
Source:

(static) sqrLen()

Alias for vec2.squaredLength
Source:

(static) squaredDistance(a, b) → {Number}

Calculates the squared euclidian distance between two vec2's
Parameters:
Name Type Description
a vec2 the first operand
b vec2 the second operand
Source:
Returns:
squared distance between a and b
Type
Number

(static) squaredLength(a) → {Number}

Calculates the squared length of a vec2
Parameters:
Name Type Description
a vec2 vector to calculate squared length of
Source:
Returns:
squared length of a
Type
Number

(static) str(a) → {String}

Returns a string representation of a vector
Parameters:
Name Type Description
a vec2 vector to represent as a string
Source:
Returns:
string representation of the vector
Type
String

(static) sub()

Alias for vec2.subtract
Source:

(static) subtract(out, a, b) → {vec2}

Subtracts vector b from vector a
Parameters:
Name Type Description
out vec2 the receiving vector
a vec2 the first operand
b vec2 the second operand
Source:
Returns:
out
Type
vec2

(static) transformMat2(out, a, m) → {vec2}

Transforms the vec2 with a mat2
Parameters:
Name Type Description
out vec2 the receiving vector
a vec2 the vector to transform
m mat2 matrix to transform with
Source:
Returns:
out
Type
vec2

(static) transformMat2d(out, a, m) → {vec2}

Transforms the vec2 with a mat2d
Parameters:
Name Type Description
out vec2 the receiving vector
a vec2 the vector to transform
m mat2d matrix to transform with
Source:
Returns:
out
Type
vec2

(static) transformMat3(out, a, m) → {vec2}

Transforms the vec2 with a mat3 3rd vector component is implicitly '1'
Parameters:
Name Type Description
out vec2 the receiving vector
a vec2 the vector to transform
m mat3 matrix to transform with
Source:
Returns:
out
Type
vec2

(static) transformMat4(out, a, m) → {vec2}

Transforms the vec2 with a mat4 3rd vector component is implicitly '0' 4th vector component is implicitly '1'
Parameters:
Name Type Description
out vec2 the receiving vector
a vec2 the vector to transform
m mat4 matrix to transform with
Source:
Returns:
out
Type
vec2