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LunaCON: fix 'getincangle'.

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git-svn-id: https://svn.eduke32.com/eduke32@4362 1a8010ca-5511-0410-912e-c29ae57300e0
This commit is contained in:
helixhorned 2014-03-05 21:12:57 +00:00
parent e0ed3688f9
commit acc4d12f4b
1 changed files with 6 additions and 7 deletions
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11
polymer/eduke32/source/lunatic/control.lua
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@ -1611,14 +1611,13 @@ end
function _angdiff(a1, a2)
a1 = band(a1, 2047)
a2 = band(a2, 2047)
-- a1 and a2 are in [0, 2047]
if (abs(a2-a1) < 1024) then
return abs(a2-a1)
end
-- |a2-a1| >= 1024
if (abs(a2-a1) >= 1024) then
if (a2 > 1024) then a2 = a2 - 2048 end
if (a1 > 1024) then a1 = a1 - 2048 end
-- a1 and a2 is in [-1023, 1024]
end
-- a1, a2 are in [-1023, 1024]
return a2-a1
end