Vector2

F2.G.Vector2

Vector2 provides operations for 2-dimensinal vectors.

Methods

create()

Create a new 2-dimensional vector, [0, 0] is returned.

Returns: Type Array

length(v)

The length of the vector.

Parameters:

Name	Type	Description
v	Array	vector to calculate length

Returns: Type Number

normalize(out, v)

Normalize the vector.

Parameters:

Name	Type	Description
out	Array	stores the normalization result
v	Array	vector to normalize

Returns: Type Array

add(out, v1, v2)

Add the two vectors v1, v2.

Parameters:

Name	Type	Description
out	Array	stores the result
v1	Array	vector v1 to add
v2	Array	vector v2 to add

Returns: Type Array

sub(out, v1, v2)

Subtraction of the two vectors v1, v2.

Parameters:

Name	Type	Description
out	Array	stores the result
v1	Array	vector v1 to subtraction
v2	Array	vector v2 to subtraction

Returns: Type Array

scale(out, v, s)

Scale the vector.

Parameters:

Name	Type	Description
out	Array	stores the result
v	Array	vector to scale
s	Array	scale vector [ sx, sy ]

Returns: Type Array

dot(v1, v2)

Calculates the dot product of two vec2's.

Parameters:

Name	Type	Description
v1	Array	the first operand
v2	Array	the second operand

Returns: Type Number

direction(v1, v2)

Calculate the direction formed by two vectors v1, v2.

Parameters:

Name	Type	Description
v1	Array	the first operand
v2	Array	the second operand

Returns: Type Boolean

angleTo(v1, v2, direction)

Calculate the angle between the two vectors v1, v2.

Parameters:

Name	Type	Description
v1	Array	the first operand
v2	Array	the second operand
direction	Boolean	the direction of two vector2's

Returns: Type Number

zero(v)

Determine if vector v is 0 vector.

Parameters:

Name	Type	Description
v	Array	the vector

Returns: Type Boolean

clone(v)

Creates a new vec2 initialized with values from an existing vector.

Parameters:

Name	Type	Description
v	Array	vector to clone

Returns: Type Array

min(out, v1, v2)

Returns the minimum of two vec2's.

Parameters:

Name	Type	Description
out	Array	store the result
v1	Array	the first operand
v2	Array	the second operand

Returns: Type Array

max(out, v1, v2)

Returns the maximum of two vec2's.

Parameters:

Name	Type	Description
out	Array	store the result
v1	Array	the first operand
v2	Array	the second operand

Returns: Type Array

transformMat2d(out, v, m)

Transforms the vector with a matrix.

Parameters:

Name	Type	Description
out	Array	store the result
v	Array	the vector to transform
m	Array	matrix to transform with

Returns: Type Array