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Add vector helpers

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ShadowNinja 2013-07-07 01:44:33 -04:00 • committed by kwolekr
parent d22baa88ed
commit ae8ff4b8e2
4 changed files with 192 additions and 15 deletions
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10
builtin/misc.lua
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@ -106,3 +106,13 @@ function minetest.formspec_escape(str)
return str
end
function math.hypot(x, y)
local t
x = math.abs(x)
y = math.abs(y)
t = math.min(x, y)
x = math.max(x, y)
t = t / x
return x * math.sqrt(1 + t * t)
end