mathheader.lua

-- Extra math things that nor lua or the math module have
vector = require("libs.vector.vector")

_G.ROOT2 = math.sqrt(2) -- The square root of 2. It will be used fairly often and calculating it is expensive, so i just did this. 

-- I dont actually know how hard it is for a computer to calculate sin but whatever here it is so it doesnt have to do it a ton of times every frame
_G.SIN45 = math.sin(45) -- The sin of 45. I made it a constant because it is unchanging and so it doesn't have to be calculated every time.

_G.ZERO_VECTOR = vector.new(0,0) -- A vector of 0,0

function xor(num1,num2) -- Takes two bools and 
    return (num1 or num2) and not (num1 and num2)
end


function pythagorean(givenvector)
    local num1,num2 = givenvector:unpack()
    return math.sqrt(num1^2+num2^2)
end