property pDirection, pSprite, pOffset, pTurnPnt

on define me, tsprite, tCounter 
  if ((tCounter mod 2) = 1) then
    tDirection = #left
  else
    tDirection = #right
  end if
  pSprite = tsprite
  pOffset = [0, 0]
  pTurnPnt = 0
  pDirection = tDirection
  me.reset()
  return TRUE
end

on reset me 
  tmodel = ["car1", "sport1", "bus1", "car1"].getAt(random(4))
  if (pDirection = #left) then
    pSprite.castNum = getmemnum(tmodel)
    pSprite.flipH = 0
    pSprite.loc = point(800, 497)
    pOffset = [-2, -1]
    pTurnPnt = 488
  else
    pSprite.castNum = getmemnum(tmodel)
    pSprite.flipH = 1
    pSprite.loc = point(208, 501)
    pOffset = [2, -1]
    pTurnPnt = 490
  end if
  pSprite.width = pSprite.member.width
  pSprite.height = pSprite.member.height
  if (tmodel = "car1") then
    pSprite.ink = 41
    pSprite.backColor = (random(150) + 20)
  else
    pSprite.ink = 36
    pSprite.backColor = 0
  end if
  pWaitTime = random(120)
end

on update me 
  pSprite.loc = (pSprite.loc + pOffset)
  if (pSprite.locH = pTurnPnt) then
    pOffset.setAt(2, -pOffset.getAt(2))
    tMemName = pSprite.member.name
    tDirNum = integer(tMemName.getProp(#char, length(tMemName)))
    tDirNum = (not (tDirNum - 1) + 1)
    tMemName = tMemName.getProp(#char, 1, (length(tMemName) - 1)) & tDirNum
    pSprite.castNum = getmemnum(tMemName)
  end if
  if pSprite.locV > 500 then
    return(me.reset())
  end if
end