Need Help Fixing Animation Problem

[cool1143]

ok, ive only got one really simple question... How do you Pic.Draw and have image move upwards, but not leaving behind a few hundred images... like iaf you see on bottom, i have to use n blank image to erase previous drawn arrows...

Turing:

var blank, upArrow, downArrow, leftArrow, rightArrow : int var x1, y1 , x2, y2, x3, y3, x4, y4: int x1 := 0 y1 := 100 x2 := 100 y2 := 100 x3 := 200 y3 := 100 x4 := 300 y4 := 100 blank := Pic.FileNew ("blank.BMP") upArrow := Pic.FileNew ("upArrow.BMP") leftArrow := Pic.FileNew ("leftArrow.BMP") downArrow := Pic.FileNew ("downArrow.BMP") rightArrow := Pic.FileNew ("rightArrow.BMP") for i : 0 .. 600     Pic.Draw (upArrow, x1, y1, picXor)     Pic.Draw (leftArrow, x2, y2, picXor)     Pic.Draw (downArrow, x3, y3, picXor)     Pic.Draw (rightArrow, x4, y4, picXor)     delay (50)     Pic.Draw (blank, x1, y1, picCopy)     Pic.Draw (blank, x2, y2, picCopy)     Pic.Draw (blank, x3, y3, picCopy)     Pic.Draw (blank, x4, y4, picCopy)     y1 += 15     y2 += 15     y3 += 15     y4 += 15 end for

Please specify what version of Turing you are using
4.1.1


PS: this is kinda urgent...

[Tony]

I see that you are using pixXor as a draw option. Do you know what does does, as oppose to default picCopy?

You can also just clear the whole screen with cls

[cool1143]

but if i use cls, then all the other arrows would be cleared, and the images would look choppy...

[TheGuardian001]

This is where the magic of View.Set("offscreenonly") and View.Update come in.

using View.Set("offscreenonly") will cause everything you draw to be drawn offscreen. This offscreen image will be drawn on the screen only when you call View.Update.

Basically, It causes everything to be drawn at the same time, instead of one by one, removing flickering and choppiness. You use it like this:

Turing:

View.Set("offscreenonly") var pic1 : int := Pic.FileNew("one.bmp") var pic2 : int := Pic.FileNew("two.bmp") var pic3 : int := Pic.FileNew("three.bmp") loop     %draw pic 1 offscreen     Pic.Draw(pic1,20,20,picMerge)     %draw pic 2 offscreen     Pic.Draw(pic2,20,40,picMerge)     %draw pic3 offscreen     Pic.Draw(pic3,20,60,picMerge)     %Draw everything we just drew offscreen onscreen.     View.Update     %clear everything from the offscreen image.     cls end loop

[cool1143]

hurray thanks! im gonna expect alot more posts from me in the help section during this week :/ making a game with limited knowledge in turing is hard