Working out a score from a timer.

Question

Here we go,
I have a maze that a man walks around with a countdown timer showing on the screen that counts down from 5:00 down to 0:00.
On completion of the maze, the play head skips to a different frame and I want to work out a score based on the time that it took for the man to complete the maze.
I have pasted the code that I have got so far, I know it will need quite a bit of work:
--global minscore, savedTime
-- behaviour script attched to a text sprite
on beginSprite me
  sprite(me.spriteNum).member.text = "5:00"
  startTimer()
end beginSprite
on enterFrame me
  tSecElapsed = (the timer)/60
  if tSecElapsed < 300 then
    tTime = 300 - tSecElapsed
    tSec = tTime mod 60
    if tSec < 10 then
      tSec = "0" & tSec
      --if sprite("man").intersects(sprite("finish")) then savedTime=tSec
    end if   
    tMin = tTime/60
    sprite(me.spriteNum).member.text = tMin & ":" & tSec
    -- if tMin = "5" then minscore = "5000"
    --  if tMin = "4" then minscore = "4000"
    --  if tMin = "3" then minscore = "3000"
    -- if tMin = "2" then minscore = "2000"
    -- if tMin = "1" then minscore = "1000"
    -- if tMin = "0" then minscore = "0"
    -- end if
  else
    sprite(me.spriteNum).member.text = "0:00"
    go to "EndScreenLevel1Lose"
  end if
end enterFrame
The commented out lines (apart from the second one down from the top), are lines that I have attempted to add in to deal with scoring, the other lines are used for the timer.
At the moment, when the play head skips to the new screen, the timer starts again which is obviously an issue.  But I also need to know how a) work out the score and b) display it if the maze has been completed.
I have looked around for a tutorial on this as it must be a pretty common thing but I've had no luck so far.
Any help greatly appreciated.
File can be found here.
Thanks in advance.

Answer 1

I managed to work this out.
Here is how I did it:
global tMin, tSec
-- behaviour script attched to a text sprite
on beginSprite me
  member("Level1Score").text = string(tMin * 1000 + (tSec * 16))   
end beginSprite
on enterFrame me
  tSecElapsed = (the timer)/60
  if tSecElapsed < 300 then
    tTime = 300 - tSecElapsed
    tSec = tTime mod 60
    if tSec < 10 then
      tSec = "0" & tSec
    end if   
    tMin = tTime/60
    sprite(me.spriteNum).member.text = tMin & ":" & tSec
    member("Level1Score").text = string(tMin * 1000 + (tSec * 16)) 
  end if
end enterFrame
Hope this helps others who have the same problem.