Need help for moving smoke without trail

[Lucy Xu]

What is it you are trying to achieve?
i want to make my smoke moving without trail


What is the problem you are having?
the smoke is moving but there are trail in the screen that i can't clear them

Describe what you have tried to solve this problem
i try to add cls in the loop and after loop, it doesn't work.


Post any relevant code (You may choose to attach the file instead of posting the code if it is too long)
<Answer Here>

Turing:

setscreen ("graphics:1012;660") setscreen ("offscreenonly") %Smoke variables var smoke1 : int := 250 var smoke2 : int := 265 var smoke3 : int := 280 loop  %Draw Smoke that moves up     Draw.FillOval (345, smoke3, 20, 20, 28)     Draw.FillOval (345, smoke2, 15, 15, 29)     Draw.FillOval (345, smoke1, 10, 10, 30)     smoke1 := smoke1 + 2     smoke2 := smoke2 + 2     smoke3 := smoke3 + 2     if smoke1 > 700 then         smoke1 := 260     end if     if smoke2 > 700 then         smoke2 := 260     end if     if smoke3 > 700 then         smoke3 := 260     end if     end loop

Please specify what version of Turing you are using
<Answer Here>

[Nathan4102]

You need a delay and a cls at the end of your loop, in that order. If you find your animation is flashy, look up View.Update.

[Lucy Xu]

but the problem is i have other stuff in my loop, so if i did cls, all the things were disappear. i only want trail disappear.

[Nathan4102]

Unfortunately turing cant clear individual layers. You will need to clear the whole screen, then redraw the smoke and trail. If you only want to clear a section of the screen, you could try drawfillbox(x1, y1, x2, y2, backgroundcolor) .