Vector helpers

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These functions act on the vector (position) type.

Function Return value Comments
vector.new([x, [y, z]]) vector x can be either be a vector or the position x of the new vector (requires x and y to be set too)
vector.direction(p1, p2) vector direction from p1 to p2, maximal values are: {x=-1,y=-1,z=-1} and {x=1,y=1,z=1}
vector.distance(p1, p2) number same as vector.length(vector.subtract(p2, p1))
vector.length(v) number
vector.normalize(v) vector
vector.round(v) vector same as vector.apply(v, function(c) return math.floor(c + 0.5) end)
vector.equals(v1, v2) bool
vector.add(v, x) vector x can be either a vector or a number.
vector.subtract(v, x) vector x can be either a vector or a number.

same as vector.add(v, -x) or vector.add(v, vector.multiply(x, -1))

vector.multiply(v, x) vector x can be either a vector or a number.
vector.divide(v, x) vector x can be either a vector or a number.
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