====== atfloor ======
//Rounds down a number. Symbolic reference to ''[[https://www.lua.org/manual/5.3/manual.html#pdf-math.floor|math.floor]]''.//

//Note: this page has been written for Advtrains 2.0.1 TSS and Minetest 5.1.0. Examples and practices described in this page don't take advantage of improvements introduced in later releases.//

===== Syntax =====
<code lua>
atfloor(x)
</code>

===== Parameters =====
  * ''x'' //(number)//: a number.

===== Returns =====
The rounded down number.

===== Examples =====
<code lua>
advtrains.is_track_and_drives_on("advtrains:dtrack", nil) -- true
advtrains.is_track_and_drives_on("advtrains:dtrack", {}) -- true
advtrains.is_track_and_drives_on("advtrains:dtrack", { nonstandard = true }) -- false
advtrains.is_track_and_drives_on("tracklib:custom", { nonstandard = true }) -- false unless tracklib:custom has been registered with track type "nonstandard"
</code>

===== In source code =====
advtrains/helpers.lua, line 67:

<file lua atfloor.lua>
atfloor = math.floor
</file>