getDistanceBetweenPoints3D

[FelipeMallmann]

It always appers, if someone can help..

Warning:

 WARNING: [DayZ-MTA]\DayZ\zombies.lua:329: Bad argument @ 'getDistanceBetweenPoints3D' 

Line:

if xL and getDistanceBetweenPoints3D(x, y, z, xL, yL, zL) < 50 then 

Code

function createZomieForPlayer(x, y, z) 
  x, y, z = getElementPosition(source) 
  counter = 0 
  if getElementData(source, "lastzombiespawnposition") then 
    local xL, yL, zL = getElementData(source, "lastzombiespawnposition")[3] or getElementData(source, "lastzombiespawnposition")[1] or false, getElementData(source, "lastzombiespawnposition")[2] or false, false 
    if xL and getDistanceBetweenPoints3D(x, y, z, xL, yL, zL) < 50 then 
      return 
    end 
  end 
  if getElementData(source, "spawnedzombies") + 3 <= gameplayVariables.playerzombies then 
    for i = 1, gameplayVariables.amountzombies do 
      counter = counter + 1 
      local number1 = math.random(-50, 50) 
      local number2 = math.random(-50, 50) 
      if number1 < 18 and number1 > -18 then 
        number1 = 20 
      end 
      if number2 < 18 and number2 > -18 then 
        number2 = -20 
      end 
      randomZskin = math.random(1, table.getn(ZombiePedSkins)) 
      zombie = call(getResourceFromName("slothbot"), "spawnBot", x + number1, y + number2, z, math.random(0, 360), ZombiePedSkins[randomZskin], 0, 0, getTeamFromName("Zombies")) 
      setElementData(zombie, "zombie", true) 
      setElementData(zombie, "blood", gameplayVariables.zombieblood) 
      setElementData(zombie, "owner", source) 
      call(getResourceFromName("slothbot"), "setBotGuard", zombie, x + number1, y + number2, z, false) 
    end 
    setElementData(source, "lastzombiespawnposition", { 
      x, 
      y, 
      z 
    }) 
    setElementData(source, "spawnedzombies", getElementData(source, "spawnedzombies") + 3) 
  end 
end 

[Castillo]

One of these variables: x, y, z, xL, yL, zL is returning nil, debug the script to find out which.