vec

Creates a new vector depending on the count of arguments.

Syntax

Supports 1 to 4 arguments. Return value is depends on the input.

number  vec(float x)
vector2 vec(float x, float y)
vector3 vec(float x, float y, float z)
vector4 vec(float x, float y, float z, float w)

Required arguments

• x: A floating point number representing the x value of your vector.

Optional arguments

• y: A floating point number representing the y value of your vector.
• z: A floating point number representing the z value of your vector.
• w: A floating point number representing the w value of your vector.

Returns

• If 1 argument is passed, returns the number.
• If 2 arguments are passed, returns a vector2.
• If 3 arguments are passed, returns a vector3.
• If 4 arguments are passed, returns a vector4.

Examples

The following is true:

vec(1)          == 1
vec(1, 2)       == vector2(1, 2)
vec(1, 2, 3)    == vector3(1, 2, 3)
vec(1, 2, 3, 4) == vector4(1, 2, 3, 4)

A basic version of this function could be implemented like so:

function vec_alt(...)
  local args = {...}
  if #args == 1 then
    return args[1]
  elseif #args == 2 then
    return vector2(args[1], args[2])
  elseif #args == 3 then
    return vector3(args[1], args[2], args[3])
  elseif #args == 4 then
    return vector4(args[1], args[2], args[3], args[4])
  else
    error('Argument count mismatch.')
  end
end