Scratch

Greenatic wrote:

Digital or analog?

digital

Or, if you use timer for something else, use

when flag clicked
   forever
      change [seconds v] by (1)
      if <(seconds) > (59)>
         set [seconds v] to (0)
         change [minutes v] by (1)
      end
      if <(minutes) > (59)>
         set [minutes v] to (0)
         change [hours v] by (1)
      end
      if <(hours) > (23)>
         set [hours v] to (0)
      end
      wait (0.99) secs
   end

Although this clock can be a little off.

Last edited by aryabtsev (2012-04-03 18:01:56)

mythbusteranimator wrote:

If you are going to do a regular (old-style, non-digital) clock, create a minute hand sprite and a second hand sprite, along with a sensor sprite positioned at the twelve.
Second hand:

when gf clicked
forever
 repeat until < touching [sensorsprite v]? >
  if <(timer) > (1)>
   reset timer
   turn cw (6) degrees
end
if < touching [sensorsprite v]? >
 broadcast [minute  v]
 

And then for the minute hand:

forever 
 when i receive [minute  v]
 turn cw (6) degrees
 

If you wanted to do hours, you'd do, in the "minute hand" sprite, a "broadcast hour" block

broadcast [hour  v]
 

And then you'd do for the hour scripts exactly what you did for the minute hand, except for the hour hand you'd turn 30 (360/12) degrees instead of 6 degrees.

I hope you found my information helpful. Unless, of course, you are not doing a normal clock and are in fact doing a digital clock. In that case, I just wasted about twenty minutes. JK 

Scratchblocks fixed.   

ProgrammingFreak wrote:

MoreGamesNow wrote:

You'd need a way to print the numbers and a way to get the starting time.  Many simply ask their users to put in the current time.  I'd then reset the timer and do this:

set [hours] to ((original hour) + (round( (timer/3600)-.5) ) mod [12]
set [minute] to ( ( (original minute) + (round((timer/60)-.5) ) ) mod [60]

I think that's the script 

I'd put it in scratchblocks, but I guess it doesn't work for that many operators.

You don't need a way to print.
You could always just have 4 each number place in the clock. First and third sprite would have costumes that have the numbers 1 through 5.
And the second and fourth would have costumes that have the numbers 1 through 9.

Seems like a lot, but it works. 

The first only needs a one. xD

well, you could do this for the counting:

when gf clicked
set [secs v] to (0)
set [mins v] to (0)
set [hrs v] to (0) // you can set them to something else or let the user enter values
forever
 wait (1) secs
 change [secs v] by (1)
 if <(secs) = (60)>
  set [secs v] to (0)
  change [mins v] by (1)
  if <(mins) = (60)>
   set [mins v] to (0)
   change [hrs v] by (1) 
   if <(hrs) = (24)>
    set [hrs v] to (0)
   end
  end
 end
 broadcast [display v]

If you want it more accurate, or if you wanted it to be a stopwatch,  you can use the timer:

when gf clicked 
set [set secs v] to (0) //these are the variables you need to 
set [set mins v] to (0) //change if you want to set the time yourself
set [set hrs v] to (0)
reset timer 
forever
 set [secs v] to ((round ((timer) - (5))) + (set secs)) // round down to nearest integer
 set [millisecs v] to (((timer) - (secs)) * (1000)) 
 set [mins v] to (round ((((secs)/(60)) - (5)) + (set mins))
 set [secs v] to ((secs) mod (60))
 set [hrs v] to (round ((((mins)/(60)) - (5)) + (set hrs))
 set [mins v] to ((mins) mod (60))
 set [hrs v] to ((hrs) mod (24))
 broadcast [display v] and wait

If you wanted it to be a stopwatch counting down,

when gf clicked
all of the old code, 
replacing every (timer)
with ((((set hrs) * (3600)) + (((set mins) * (60)) + (set secs))) - (timer))

Note that changing the time is more complicated than before, so do

when i receive [change time v] 
ask [new hours? (-1 to keep it the same)] and wait
if <(answer) > [0]>
 set [set hrs v] to (answer)
else
 set [set hrs v] to (hrs)
end
ask [new minuites? (-1 to keep it the same)] and wait
if <(answer) > [0]>
 set [set mins v] to (answer)
else
 set [set mins v] to (mins)
end
ask [new seconds? (-1 to keep it the same)] and wait
if <(answer) > [0]>
 set [set secs v] to (answer)
else
 set [set secs v] to (secs)
end
reset timer

Now for the display if you want analogue, you need 3 sprites, for the hour hand, minute hand, and second hand. They should all be straight lines pointing up with the hour hand shorter than the rest and the second hand a different colour to the rest. Set the costume centre of each one to the end of the line, and put them all at the same position. Give each one a LOCAL (for this sprite only)  variable called point at.

In the hour hand:

when i receive [display v]
set [point at v] to ((hrs) * (30))
set [point at v] to ((point at) + (((mins) / (60)) * (30)))
point in direction (point at)

In the minute hand:

when i receive [display v]
set [point at v] to ((mins) * (6))
set [point at v] to ((point at) + (((secs) / (60)) * (6)))
point in direction (point at)

In the second hand:

when i receive [display v]
set [point at v] to ((secs) * (6))
point in direction (point at)

Now, if you want digital, it is slightly easier.

when gf clicked // This script is so the colons in the display flash each second
set [colons? v] to (0) //if you don't want that, 
forever
 set [colons? v] to ((1) - (colons?)
 wait (1) secs

when i receive [display v]
if <(display) = [24hour]>
 if <(colons?) = (1)>
  set [time v] to (join (hrs) (join [:] (join (mins) (join [:] (secs))
 else
  set [time v] to(join (hrs) (join [ ] (join (mins) (join [ ] (secs))
 end
 stop script
end
if <(display) = [stopwatch]>
  if <(colons?) = (1)>
  set [time v] to (join (hrs) (join [:] (join (mins) (join [:] (join (secs) (join [:] (milisecs)))))))
 else
  set [time v] to (join (hrs) (join [ ] (join (mins) (join [ ] (join (secs) (join [ ] (milisecs))))))) 
 end
 stop script
end
if <(display) = [12hour]>
if <(colons?) = (1)>
 if <<(hrs) = (0)> or <(hrs) = (12)>>
  set [time v] to [12]
 else
  set [time v] to (hrs)
 end
 set [time v] to (join (time) (join [:] (join (mins) (join [:] (secs))
 if <(hrs) < (12)>
  set [time v] to (join (time) [ AM])
 else
  set [time v] to (join (time) [ PM])
 end
else
if <<(hrs) = (0)> or <(hrs) = (12)>>
   set [time v] to [12]
  else
   set [time v] to (hrs)
  end
  set [time v] to (join (time) (join [ ] (join (mins) (join [ ] (secs))
  if <(hrs) < (12)>
   set [time v] to (join (time) [ AM])
  else
   set [time v] to (join (time) [ PM])
  end
end
end

Then you can just show the variable time. If you want it bigger, get a sprite with a costume for each digit plus a colon, and add this script to the end of the above script:

set [index v] to (0)
go to x:(xpositionoftime) y:(ypositionoftime)
repeat until <(index) = (length of (time))>
 change [index v] by (1)
 if <(letter (index) of (time)) = [ ]>
  move (20) steps
  stop script
 end
 if <(letter (index) of (time)) = [0]>// costumes with numerical names automaticly 
  // change to "01", "11", "21", ect... so there is no costume 0.
  switch to costume [01 v]
 else
  switch to costume (letter (index) of (time))
 end
 stamp
 move (20) steps
end 

Hope that helps!

(don't you wish scratch had a (date/time) block?)

Last edited by joefarebrother (2012-04-11 06:06:36)