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Add quaternion.len

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This commit is contained in:
Lars Mueller 2023-02-26 14:46:13 +01:00
parent acdce1742d
commit c5e622f4a9
1 changed files with 6 additions and 2 deletions
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8
quaternion.lua
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@ -37,11 +37,15 @@ function compose(self, other)
return multiply(other, self) return multiply(other, self)
end end
function len(self)
return (self[1] ^ 2 + self[2] ^ 2 + self[3] ^ 2 + self[4] ^ 2) ^ 0.5
end
function normalize(self) function normalize(self)
local len = math.sqrt(self[1] ^ 2 + self[2] ^ 2 + self[3] ^ 2 + self[4] ^ 2) local l = len(self)
local res = {} local res = {}
for key, value in pairs(self) do for key, value in pairs(self) do
res[key] = value / len res[key] = value / l
end end
return res return res
end end