lua-time is a simple and small library that provides some time methods that are lacking on standart library.
Send me a message on github , I'll support as soon as possible and when it is possible.
BEER-WARE, see source file
- Lua 5.1 (or Luajit 2.0.8 GIT HEAD)
- GNU Compiler tools (min-gw32 on windows http://sourceforge.net/projects/mingw/files/MinGW/ )
- UPX eXe compressor (not needed)
Tested on windows only, compatible with *NIX systens. You only need to edit some vars on makefile, for basic instalation use:
# make
If you have upx use this for better output.
# make release
For cleanup
# make clean
require 'time'
time.getSeconds() -- return time in seconds since EPOCH, ex: 1318215923
time.getMiliseconds() -- return time in seconds and milisenconds since EPOCH, ex: 1318215923.112
time.getMicroseconds() -- return time in microseconds relative to seconds since EPOCH, ex: 0.903249
time.getTime() -- return time in seconds, microseconds and microseconds since EPOCH, ex: 1321559562 0.971 0.971777
time.getDiff( <seconds/miliseconds> ) -- return the difference between a given time and now.
There's a file 'time_bench.lua' that have a benchmark using a bitwise library ( http://bitop.luajit.org/ ) ...
One day, some friend of mine asked me to make a benchmark between Lua and AS3 (Action Script 3). He's doing some code improvements in a game that we are developing, mostly at "round method" provided by AS3 math library, and as I know native methods may peform better than workarounds, but in AS3 a round method made in bitwise could peform much faster than native round method ... so I accept the chalenge and I realize that Lua doesn't have a method that provide a milisecond precision. Then I found myself in a second chalenge and here I go!
PS: for the record, Lua (LuaJIT) is about 100x faster than AS3 round method (bitwise) and Lua native math library is 2-3x faster than bitwise method.
% October 10th, 2011 -03 GMT
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