starlit  Diff

Differences From Artifact [65dcc21fc6]:

• File mods/vtlib/math.lua — part of check-in [caec179da9] at 2025-01-19 19:05:09 on branch trunk — add to lore, add weather data, etc (user: lexi, size: 4593) [annotate] [blame] [check-ins using]

To Artifact [3b6ca155c9]:

• File mods/vtlib/math.lua — part of check-in [4732f8d454] at 2025-01-19 19:18:55 on branch trunk — we have always been at war with east minecraft (user: lexi, size: 4591) [annotate] [blame] [check-ins using]

     1      1   local lib = ...
     2      2   local fn = {}
     3      3   
     4      4   fn.vsep = function(vec) -- separate a vector into a direction + magnitude
     5      5   	return vec:normalize(), vec:length()
     6      6   end
     7      7   
     8         --- minetest now only provides the version of this function that sqrts the result
            8  +-- luanti now only provides the version of this function that sqrts the result
     9      9   -- which is pointlessly wasteful much of the time
    10     10   fn.vdsq = function(a,b)
    11     11   	local d = vector.subtract(a,b)
    12     12   	return (d.x ^ 2) + (d.y ^ 2) + (d.z ^ 2)
    13     13   end
    14     14   
    15     15   fn.vdcomp = function(dist,v1,v2) -- compare the distance between two points