drawing two ovals at the same time

[ddndd]

hi
im trying to make 2 moving ovals, so far i created them and they are moving but the problem is that they are flashing too much, cuz i used a delay and drew them again in white

code :
var x,y,xx,yy:int
x := maxx div 2
xx := maxx div 2 + 30
y := 100
loop
y += 1
drawfilloval (x,y,10,10,black)
delay (10)
drawfilloval (x,y,10,10,white)
drawfilloval (xx,y,10,10,black)
delay (10)
drawfilloval (xx,y,10,10,white)
end loop

i use turing 4.1
any ideas ??

[TheGuardian001]

This is where View.Update and offscreenonly comes in handy. It basically combines all of the drawing you do into a single drawing, which is only shown on screen when View.Update is called.

Turing:

View.Set("offscreenonly") %off screen drawing mode %all drawing is now drawn off screen until View.Update %is called. loop     DRAW_STUFF %offscreen     View.Update %copy everything that was drawn offscreen and     %put it onscreen     cls %clear the offscreen image. Does not affect onscreen image until next View.Update. end loop

Another problem you may run into is that you don't appear to be drawing in the correct order. In your program the flow is:

code:

loop     Draw_oval_one     clear_oval_one     Draw_oval_two     clear_oval_two end loop

You may wish to consider drawing both ovals one after another without clearing, then clearing them both together, as this will also help the problem.

A note about View.Update: You should only ever be calling this once inside of a loop. The whole point of using View.Update is to reduce flickering by drawing an entire scene in one motion. If you call it more than once in a single loop, you are defeating the purpose of using it in the first place.

[ddndd]

ohh so that is what view. update is for...
thnx